本申请为申请人于2012年03月19日递交的申请号为201110397907.2，发明名称为"照明装置和投影装置"的分案申请。This application is a divisional application with the application number 201110397907.2 submitted by the applicant on March 19, 2012, and the title of the invention is "illumination device and projection device".
【技术领域】【Technical field】
本发明涉及投影技术领域，尤其是涉及一种照明装置及其应用的投影系统、及蓝光校正方法。The present invention relates to the field of projection technology, in particular to an illumination device, a projection system for its application, and a blue light correction method.
【背景技术】【Background technique】
固态光源，例如蓝光激发光二极管(LD，Laser Diode)或发光二极管(LED，LightEmitting Diode)，其可产生高亮度的光线，并已被广泛应用于各种电子产品中，例如应用于照明装置中。Solid-state light sources, such as blue-light-excited light-emitting diodes (LD, Laser Diode) or light-emitting diodes (LED, LightEmitting Diode), which can produce high-brightness light, and have been widely used in various electronic products, such as in lighting devices .
目前，不同种类的固态光源可发出不同的色光，例如蓝光、红光或黄光。然而，一般蓝光激发光本身所发出的蓝光波长是在440nm-450nm之间，其色坐标约为(0.15，0.016)。在国际通用的数字电视标准Rec709中，纯蓝光的色坐标为(0.152，0.061)，其主波长为462nm。因此，一般蓝光激发光所发出的蓝光(波长440-450nm)会看似一蓝紫光，而非纯蓝光，因而容易影响固态光源所产成的视觉效果。Currently, different types of solid-state light sources can emit different colors of light, such as blue light, red light, or yellow light. However, generally the blue light emitted by the blue excitation light itself has a wavelength between 440nm and 450nm, and its color coordinates are about (0.15, 0.016). In the internationally accepted digital TV standard Rec709, the color coordinates of pure blue light are (0.152, 0.061), and its dominant wavelength is 462nm. Therefore, the blue light (wavelength 440-450nm) emitted by the general blue excitation light will look like a blue-violet light instead of pure blue light, thus easily affecting the visual effect produced by the solid-state light source.
故，有必要提供一种照明装置及其应用的投影系统、及蓝光校正方法，以解决现有技术所存在的问题。Therefore, it is necessary to provide an illumination device, a projection system for its application, and a blue light correction method to solve the problems existing in the prior art.
【发明内容】【Content of invention】
本发明主要解决的技术问题是提供一种照明装置及其应用的投影系统、及蓝光校正方法，以使发出的蓝光更接近或实质相等于预设要求的色光。The main technical problem to be solved by the present invention is to provide a lighting device, a projection system for its application, and a blue light correction method, so that the emitted blue light is closer to or substantially equal to the preset required color light.
本发明提出一种照明装置，包括：The present invention proposes a lighting device, comprising:
用于产生蓝光激发光的光源；A light source for generating blue excitation light;
基板，该基板包括设置于该蓝光激发光的传播路径上的至少一个分区，该分区中的至少一个分区为蓝光分区；a substrate, the substrate includes at least one subregion arranged on the propagation path of the blue light excitation light, at least one subregion in the subregion is a blue light subregion;
覆设于蓝光分区上的波长转换材料层，该波长转换材料层用于吸收蓝光激发光中的一部分并发出一受激光，该受激光的色坐标位于预定颜色区域内部，使得蓝光分区出射由该受激光和没有被波长转换材料层吸收的剩余蓝光激发光组成的混合光，该混合光的色坐标相较于蓝光激发光的色坐标更接近预定的蓝光色坐标。A layer of wavelength conversion material covered on the blue light division, the wavelength conversion material layer is used to absorb a part of the blue light excitation light and emit a received light, the color coordinates of the received light are located inside the predetermined color area, so that the blue light division is emitted by the The mixed light composed of the stimulated light and the remaining blue excitation light not absorbed by the wavelength conversion material layer, the color coordinate of the mixed light is closer to the predetermined blue light color coordinate than the color coordinate of the blue excitation light.
本发明还提出一种投影装置，包括上述的照明装置。The present invention also proposes a projection device, including the above-mentioned illuminating device.
相较于现有的蓝光固态光源无法发出符合要求的纯蓝光，本发明的照明装置及投影装置可受激光源的蓝光激发光的波长范围或色坐标，以使发出的蓝光更接近或实质相等于预定的蓝光色坐标，因而可确保照明装置的视觉效果及其整体色彩表现。Compared with the existing blue light solid-state light sources that cannot emit pure blue light that meets the requirements, the lighting device and projection device of the present invention can be controlled by the wavelength range or color coordinates of the blue light excitation light of the laser source, so that the emitted blue light is closer to or substantially similar to equal to the predetermined color coordinates of blue light, thus ensuring the visual effect of the lighting device and its overall color performance.
【附图说明】【Description of drawings】
图1为本发明中照明装置的第二实施例的结构示意图；Fig. 1 is a schematic structural view of the second embodiment of the lighting device in the present invention;
图2为图1所示实施例中基板的主视图；Fig. 2 is the front view of substrate in the embodiment shown in Fig. 1;
图3为本发明中照明装置的第一实施例的结构示意图；Fig. 3 is a schematic structural diagram of the first embodiment of the lighting device in the present invention;
图4为本发明中投影装置的结构示意图；4 is a schematic structural view of a projection device in the present invention;
图5为本发明照明装置的第三实施例的结构示意图；5 is a schematic structural diagram of a third embodiment of the lighting device of the present invention;
图6为本发明为图5所示实施例中第一滤光片的透过率及受激光光谱的对应关系图；Fig. 6 is the corresponding relationship diagram between the transmittance of the first optical filter and the spectrum of the received light in the embodiment shown in Fig. 5 according to the present invention;
图7为本发明照明装置的第八实施例中结构示意图；Fig. 7 is a schematic structural diagram of the eighth embodiment of the lighting device of the present invention;
图8A为本发明照明装置的第四实施例中结构示意图；Fig. 8A is a schematic structural diagram of the fourth embodiment of the lighting device of the present invention;
图8B为图8A的局部放大图；Figure 8B is a partially enlarged view of Figure 8A;
图9A为本发明照明装置的五实施例的结构示意图；FIG. 9A is a schematic structural diagram of five embodiments of the lighting device of the present invention;
图9B为图9A的局部放大图；Fig. 9B is a partially enlarged view of Fig. 9A;
图10为本发明圆形基板的第六实施例的结构示意图；以及FIG. 10 is a schematic structural view of the sixth embodiment of the circular substrate of the present invention; and
图11为本发明照明装置的第七实施例的结构示意图；Fig. 11 is a schematic structural diagram of the seventh embodiment of the lighting device of the present invention;
图12a和12b是本发明的照明装置中波长装换材料所发射的受激光的色坐标的范围；Figures 12a and 12b are the scope of the color coordinates of the light emitted by the wavelength conversion material in the lighting device of the present invention;
图13为本发明照明装置的第九实施例的结构示意图；Fig. 13 is a schematic structural diagram of the ninth embodiment of the lighting device of the present invention;
【具体实施方式】【Detailed ways】
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.
在图中，结构相似的单元是以相同标号表示。In the figures, structurally similar units are denoted by the same reference numerals.
请参照图3，其为本发明中照明装置3000的第一实施例的结构示意图。本实施例的照明装置包括，用于产生蓝光激发光3001的光源(图中未画出)，该蓝光激发光光谱的峰值波长范围为大于等于430nm且小于等于465nm。本照明装置还包括基板3030，该基板3030包括设置于蓝光激发光3001的传播路径上的至少一个分区，该分区中的至少一个分区为蓝光分区3031。Please refer to FIG. 3 , which is a schematic structural diagram of a first embodiment of an illuminating device 3000 in the present invention. The lighting device in this embodiment includes a light source (not shown in the figure) for generating blue excitation light 3001 , the peak wavelength range of the blue excitation light spectrum is greater than or equal to 430 nm and less than or equal to 465 nm. The illuminating device further includes a substrate 3030 , and the substrate 3030 includes at least one subregion disposed on the propagation path of the blue excitation light 3001 , at least one of which is a blue subregion 3031 .
本照明装置3000还包括波长转换材料层3040，覆设于蓝光分区3031上，该波长转换材料层用于吸收蓝光激发光3001中的一部分并发出一受激光，使得蓝光分区3031出射由该受激光和没有被波长转换材料层3040吸收的剩余蓝光激发光组成的混合光3002，该混合光的色坐标相较于蓝光激发光3001的色坐标更接近预定的蓝光色坐标。The illuminating device 3000 also includes a wavelength conversion material layer 3040, which is covered on the blue light subregion 3031. The wavelength conversion material layer is used to absorb a part of the blue light excitation light 3001 and emit a subject light, so that the blue light subregion 3031 is emitted by the subject light. Compared with the color coordinate of the blue excitation light 3001 , the color coordinate of the mixed light is closer to the predetermined blue light color coordinate.
波长转换材料层3040包括波长转换材料，该波长转换材料可能是荧光粉或量子点，例如为绿色荧光粉或青色荧光粉或黄绿色荧光粉或黄色荧光粉中的一种或多种的的混合，其可吸收蓝光分区的一部分(如10％)的蓝光激发光3001，再发射出绿色或青色的受激光(波长范围例如为500-600nm)，该受激光与剩余的蓝光激发光可形成此混合光。由于混合光具有部分绿色或青色的受激光，因而混合光的色坐标可向绿色方向偏移，以使经由蓝光分区3031所发出的混合光可具更好的蓝光视觉效果。然而，波长转换材料层3040的受激光并不限于绿色或青色光，其可为其它波长大于蓝光激发光的色光，以校正此蓝光激发光。以上的吸收比例的数值和受激光的波长范围只是为了说明方便的举例，并不对本发明造成限制。The wavelength conversion material layer 3040 includes a wavelength conversion material, which may be phosphor or quantum dots, such as a mixture of one or more of green phosphor, cyan phosphor, yellow-green phosphor, or yellow phosphor , which can absorb a part (such as 10%) of the blue-light excitation light 3001 of the blue-light division, and then emit a green or cyan-colored stimulated light (wavelength range, for example, 500-600nm), which can be formed with the rest of the blue-light excitation light. mixed light. Since the mixed light has part of the green or cyan received light, the color coordinate of the mixed light can be shifted toward the green direction, so that the mixed light emitted through the blue light partition 3031 can have a better blue light visual effect. However, the stimulated light of the wavelength conversion material layer 3040 is not limited to green or cyan light, it can be other colored light with a wavelength greater than that of the blue excitation light to correct the blue excitation light. The above numerical values of the absorption ratio and the wavelength range of the laser light are just examples for convenience of description, and do not limit the present invention.
具体来说，CIE色品图上，蓝光激发光和受激光的混合光的色坐标位于蓝光激发光的色坐标与混合光的色坐标之间的连线上，具体合光原理如下所示：Specifically, on the CIE chromaticity diagram, the color coordinates of the mixed light of the blue light excitation light and the received light are located on the line between the color coordinates of the blue light excitation light and the color coordinates of the mixed light. The specific principle of light synthesis is as follows:
设蓝光激发光和受激光的亮度分别为L1、L2，色坐标分别为(x1，y1)、(x2，y2)，则合光后的混合光的亮度L和色坐标(x，y)表示为：Assuming that the brightness of the blue light excitation light and the received light are L1 , L2 , and the color coordinates are (x1 , y1 ), (x2 , y2 ), then the brightness L and color coordinates of the mixed light after light combination (x, y) is expressed as:
L＝L1+L2 (1)L＝L1 +L2 (1)
因此，可以通过选择波长转换材料，使其产生的受激光的色坐标接近蓝光激发光3001的色坐标到预定的蓝光色坐标连线的延长线上。然后，在蓝光激发光的色坐标与受激光的色坐标的连线上选择接近预定的蓝光色坐标的一点作为混合光的色坐标。随后，通过上述公式根据已知的蓝光激发光、受激光以及混合光的色坐标可以计算出的蓝光激发光和受激光之间的亮度比例，进而通过调节蓝光激发光和受激光的亮度比例，使得混合光的色坐标相较于蓝光激发光的色坐标更接近预定的蓝光色坐标。Therefore, the wavelength conversion material can be selected so that the color coordinates of the received light it generates are close to the extension of the line connecting the color coordinates of the blue light excitation light 3001 to the predetermined blue light color coordinates. Then, on the connecting line between the color coordinates of the blue light excitation light and the color coordinates of the received light, a point close to the predetermined blue light color coordinates is selected as the color coordinates of the mixed light. Subsequently, the brightness ratio between the blue excitation light and the acceptance light can be calculated according to the known color coordinates of the blue excitation light, the acceptance light and the mixed light through the above formula, and then by adjusting the brightness ratio of the blue excitation light and the acceptance light, The color coordinate of the mixed light is closer to the predetermined blue light color coordinate than the color coordinate of the blue light excitation light.
可以通过改变波长转换材料层3040中的波长转换材料的添加量来改变蓝光激发光和受激光之间的亮度比例。显而易见，波长转换材料的添加量多，则吸收的蓝光激发光3001的能量就比较多，受激产生的受激光就比较多，因此剩余的蓝光激发光和受激光的亮度比例就会降低；反之则升高。The brightness ratio between the blue excitation light and the received light can be changed by changing the addition amount of the wavelength conversion material in the wavelength conversion material layer 3040 . Obviously, if the addition amount of the wavelength conversion material is large, the energy of the absorbed blue light excitation light 3001 will be more, and the stimulated generated light will be more, so the brightness ratio of the remaining blue light excitation light and the stimulated light will decrease; on the contrary is raised.
根据公式(1)至(3)可见，只要选择合适的波长转换材料层3040中的波长转换材料，再通过调整波长转换材料的添加量以调整剩余的蓝光激发光和受激光的亮度比例，就可以得到颜色更好的蓝光。According to the formulas (1) to (3), it can be seen that as long as the appropriate wavelength conversion material in the wavelength conversion material layer 3040 is selected, and then the addition amount of the wavelength conversion material is adjusted to adjust the brightness ratio of the remaining blue excitation light and the received light, the You can get Blu-rays with better colors.
下面具体说明对波长转换材料的选择原则。如图12a所示的CIE1931色品图1200中，蓝光区域1201的放大图如图12b所示。在图12b中，1211为蓝光激发光3001的色坐标，例如但不限于(0.16，0.016)，而以1212a、1212b、1212c和1212d为四个顶点的矩形所覆盖的区域为较好的蓝光的色坐标区域，其中1212a的色坐标是(0.14,0.03)，1212b的色坐标是(0.18,0.03)，1212c的色坐标是(0.14,0.08)，1212d的色坐标是(0.18,0.08)。在该蓝光色坐标区域中，最优的为以1213a和1213b为端点的线段上的蓝光色坐标，其中1213a的色坐标为(0.155,0.06)，1213b的色坐标是(0.165,0.06)。根据上述的分析可知，若要受激光与1211所示的蓝光的颜色进行混合得到以1212a、1212b、1212c和1212d为四个顶点的矩形所覆盖的区域的颜色色坐标，则需要该受激光的色坐标位于第一颜色区域。该第一颜色区域由以下线段、直线或曲线相交后首尾相连共同围成：色坐标1211与色坐标1212a的连线及其延长线(直线)，色坐标1212a与色坐标1212b之间的线段(线段)，色坐标1211与色坐标1212b的连线及其延长线(直线)，色品图1200的边缘曲线(曲线)。其中色品图1200的边缘曲线以CIE发布的数据为准，属于本领域的公知技术。根据颜色学的知识容易计算出，第一颜色区域内的色坐标所对应的主波长范围大约是465nm至585nm。The selection principle of the wavelength conversion material will be described in detail below. In the CIE1931 chromaticity diagram 1200 shown in FIG. 12 a , an enlarged view of the blue light region 1201 is shown in FIG. 12 b . In Fig. 12b, 1211 is the color coordinate of the blue light excitation light 3001, such as but not limited to (0.16, 0.016), and the area covered by the rectangle with four vertices 1212a, 1212b, 1212c and 1212d is the better blue light In the area of color coordinates, the color coordinates of 1212a are (0.14,0.03), the color coordinates of 1212b are (0.18,0.03), the color coordinates of 1212c are (0.14,0.08), and the color coordinates of 1212d are (0.18,0.08). In the blue light color coordinate area, the optimal blue light color coordinates are on the line segment with 1213a and 1213b as endpoints, wherein the color coordinate of 1213a is (0.155, 0.06), and the color coordinate of 1213b is (0.165, 0.06). According to the above analysis, it can be seen that if the color coordinates of the area covered by the rectangle with 1212a, 1212b, 1212c and 1212d as the four vertices are obtained by mixing the received light with the color of the blue light shown in 1211, the color of the received light is required. The color coordinates are located in the first color region. The first color area is surrounded by the following line segments, straight lines or curves intersecting and connected end to end: the connection line between the color coordinate 1211 and the color coordinate 1212a and its extension (straight line), the line segment between the color coordinate 1212a and the color coordinate 1212b ( line segment), the connection line between the color coordinate 1211 and the color coordinate 1212b and its extension (straight line), and the edge curve (curve) of the chromaticity diagram 1200. The edge curve of the chromaticity diagram 1200 is subject to the data released by CIE, which belongs to the known technology in the art. According to the knowledge of color science, it can be easily calculated that the dominant wavelength range corresponding to the color coordinates in the first color region is about 465nm to 585nm.
进一步的，若要得到更优化的蓝光色坐标，则需要受激光的色坐标位于第二颜色区域。该第二颜色区域由以下线段、直线或曲线相交后首尾相连共同围成：色坐标1211与色坐标1212c的连线及其延长线(直线)，色坐标1212c与色坐标1212d之间的线段(线段)，色坐标1211与色坐标1212d的连线及其延长线(直线)，色品图1200的边缘曲线(曲线)。根据颜色学的知识容易计算出，第二颜色区域内的色坐标所对应的主波长范围大约是492nm至562nm。Further, to obtain more optimized blue light color coordinates, it is required that the color coordinates of the received light be located in the second color region. This second color region is surrounded by the following line segments, straight lines or curves intersecting and connected end to end: the connection line between color coordinate 1211 and color coordinate 1212c and its extension line (straight line), the line segment between color coordinate 1212c and color coordinate 1212d ( line segment), the connection line between the color coordinate 1211 and the color coordinate 1212d and its extension (straight line), and the edge curve (curve) of the chromaticity diagram 1200. According to the knowledge of color science, it can be easily calculated that the dominant wavelength range corresponding to the color coordinates in the second color region is about 492nm to 562nm.
显而易见，第二颜色区域是第一颜色区域的一个子集。当受激光的颜色色坐标落入第二颜色区域时，只要蓝光激发光与受激光的比例调整得当，照明装置3000最终得到的混合光将更接近理想蓝光。Obviously, the second color region is a subset of the first color region. When the color coordinates of the received light fall into the second color region, as long as the ratio of the blue excitation light to the received light is properly adjusted, the final mixed light obtained by the lighting device 3000 will be closer to the ideal blue light.
进一步的，对于更优化的蓝光范围，即以1213a和1213b为端点的线段上的蓝光色坐标，则需要受激光的色坐标位于第三颜色区域。该第三颜色区域由以下线段、直线或曲线相交后首尾相连共同围成：色坐标1211与色坐标1213a的连线及其延长线(直线)，色坐标1213a与色坐标1213b之间的线段(线段)，色坐标1211与色坐标1212d的连线及其延长线(直线)，色品图1200的边缘曲线(曲线)。根据颜色学的知识容易计算出，第三颜色区域内的色坐标所对应的主波长范围大约是515nm至545nm。Further, for a more optimal blue light range, that is, the blue light color coordinates on the line segment with 1213a and 1213b as endpoints, the color coordinates of the received light need to be located in the third color region. This third color region is surrounded by the following line segments, straight lines or curves intersecting and connected end to end: the connection line between color coordinate 1211 and color coordinate 1213a and its extension line (straight line), the line segment between color coordinate 1213a and color coordinate 1213b ( line segment), the connection line between the color coordinate 1211 and the color coordinate 1212d and its extension (straight line), and the edge curve (curve) of the chromaticity diagram 1200. According to the knowledge of color science, it can be easily calculated that the dominant wavelength range corresponding to the color coordinates in the third color region is about 515nm to 545nm.
显而易见，第三颜色区域是第二颜色区域的一个子集。当受激光的颜色色坐标落入第三颜色区域时，只要蓝光激发光与受激光的比例调整得当，照明装置3000最终得到的混合光将落在由1213a和1213b为两个端点的线段上。Obviously, the third color region is a subset of the second color region. When the color coordinates of the received light fall into the third color region, as long as the ratio of the blue excitation light to the received light is properly adjusted, the final mixed light obtained by the lighting device 3000 will fall on the line segment with two endpoints 1213a and 1213b.
根据实验数据，当控制波长转换材料层3040中的波长转换材料的添加量使波长转换材料层3040吸收入射的蓝光激发光3001的能量占蓝光激发光3001总能量的1％-50％时，所得到的出射的混合光的颜色相对于蓝光激发光3001的颜色色坐标有改善。优选的，波长转换材料层3040吸收入射的蓝光激发光3001的能量占蓝光激发光3001总能量的10％-30％。According to the experimental data, when the addition amount of the wavelength conversion material in the wavelength conversion material layer 3040 is controlled so that the energy of the incident blue excitation light 3001 absorbed by the wavelength conversion material layer 3040 accounts for 1%-50% of the total energy of the blue excitation light 3001, the Compared with the color coordinates of the blue excitation light 3001 , the color of the obtained emitted mixed light is improved. Preferably, the energy absorbed by the wavelength conversion material layer 3040 of the incident blue excitation light 3001 accounts for 10%-30% of the total energy of the blue excitation light 3001 .
在本实施例中，优选的，基板3030同时也是第二滤光片，位于波长转换材料层3040的被蓝光激发光3001入射的一侧。该第二滤光片的表面上镀有干涉滤光镀膜，该干涉滤光镀膜可以透射蓝光激发光3001同时反射受激光。蓝光激发光3001穿透第二滤光片3030后入射到波长转换材料层3040，部分被波长转换材料吸收后被转换成受激光发射出来。由于受激发射是各项同性的，因此该受激光分为两部分，一部分受激光直接出射到其上方的外部空间中，另一部分受激光入射于第二滤光片3030后被其反射并最终从其上方的外部空间出射，并与第一部分受激光和未被吸收的剩余的蓝光激发光一起形成照明装置3000的出射光3002。第二滤光片的作用在于反射入射到其上的受激光使其向出射方向(图3中的上方)发射，增强了照明光源3000的出射光3002中的受激光的强度。In this embodiment, preferably, the substrate 3030 is also the second filter, which is located on the side of the wavelength conversion material layer 3040 on which the blue excitation light 3001 is incident. The surface of the second filter is coated with an interference filter coating, and the interference filter coating can transmit the blue excitation light 3001 while reflecting the received light. The blue excitation light 3001 passes through the second filter 3030 and then enters the wavelength conversion material layer 3040, part of which is absorbed by the wavelength conversion material and then converted into a light that is emitted. Since the stimulated emission is isotropic, the stimulated light is divided into two parts, one part of the stimulated light is directly emitted into the external space above it, and the other part of the stimulated light is incident on the second filter 3030 and is reflected by it and finally It emerges from the external space above it, and forms the outgoing light 3002 of the illuminating device 3000 together with the first part of the received light and the remaining unabsorbed blue excitation light. The function of the second filter is to reflect the incident light on it to emit toward the outgoing direction (upper in FIG. 3 ), and enhance the intensity of the light in the outgoing light 3002 of the illumination source 3000 .
更优选的，基板3030的镀有干涉滤光镀膜的一面靠近波长转换材料层3040，且与波长转换材料层3040之间存在一空气隙。基板3030的镀膜面面向波长转换材料层3040的优点在于其避免了受激光在基板3030内部的传播和横向扩散，进而避免了光斑的扩大和能量密度的下降。干涉滤光镀膜与波长转换材料层3040之间的空气隙的作用是时该干涉滤光镀膜的设计变得更简单。More preferably, the side of the substrate 3030 coated with the interference filter coating is close to the wavelength conversion material layer 3040 , and there is an air gap between the wavelength conversion material layer 3040 and the wavelength conversion material layer 3040 . The advantage of the coating surface of the substrate 3030 facing the wavelength conversion material layer 3040 is that it avoids the propagation and lateral diffusion of the received light inside the substrate 3030, thereby avoiding the enlargement of the light spot and the decrease of the energy density. The effect of the air gap between the interference filter coating and the wavelength conversion material layer 3040 is to simplify the design of the interference filter coating.
请参照图1，其为本发明中照明装置的第二实施例的结构示意图。本实施例的照明装置100可用于产生高亮度的多色光，照明装置100可包括光源110、聚焦光学组件120、基板130及波长转换材料层140。光源110用于产生蓝色的蓝光激发光，聚焦光学组件120用于将该蓝光激发光聚焦至基板130上。Please refer to FIG. 1 , which is a schematic structural diagram of a second embodiment of an illuminating device in the present invention. The lighting device 100 of this embodiment can be used to generate high-brightness polychromatic light, and the lighting device 100 can include a light source 110 , a focusing optical component 120 , a substrate 130 and a wavelength conversion material layer 140 . The light source 110 is used to generate blue excitation light, and the focusing optical component 120 is used to focus the blue excitation light onto the substrate 130 .
光源110可为一个固态光源或多个固态光源的组合，此固态光源例如为蓝光LD、LED或两者混合使用，用于产生蓝光激发光，其光谱的峰值波长范围为大于等于430nm且小于等于465nm。以峰值波长为445nm的蓝光激发光为例，且其色坐标约为(0.16，0.016)。The light source 110 can be a solid-state light source or a combination of multiple solid-state light sources. The solid-state light source is, for example, a blue LD, an LED, or a mixture of the two used to generate blue excitation light. The peak wavelength range of its spectrum is greater than or equal to 430nm and less than or equal to 465nm. Take blue excitation light with a peak wavelength of 445nm as an example, and its color coordinates are about (0.16, 0.016).
本实施例与第一实施例的不同点还在于，还包括驱动装置，波长转换材料层140和基板130分别与该驱动装置连接固定；该驱动装置驱动基板130和波长转换材料层140与蓝光激发光相对运动，以使基板130的各个分区131、132、133及134轮流位于蓝光激发光的传播路径上，如图1和图2所示。本实施例中的基板130是由光学透明材料制成，例如玻璃、PMMA塑料等。基板130具有多个分区131、132、133及134，其中分区131为蓝光分区131。波长转换材料层140覆设于基板130的一蓝光分区131上，且至少覆设于蓝光分区131的部分区域上，用以吸收此蓝光激发光，并发出一受激光，使得蓝光分区131出射由该受激光与蓝光分区剩余的蓝光激发光组成的混合光，该混合光的色坐标相较于蓝光激发光的色坐标更接近预定的蓝光色坐标。该受激光的色坐标的取值范围与第一实施例相同。The difference between this embodiment and the first embodiment is that it also includes a driving device, and the wavelength conversion material layer 140 and the substrate 130 are respectively connected and fixed to the driving device; the driving device drives the substrate 130 and the wavelength conversion material layer 140 and blue light excitation The light moves relative to each other so that the subregions 131 , 132 , 133 and 134 of the substrate 130 are located on the propagation path of the blue excitation light in turn, as shown in FIG. 1 and FIG. 2 . The substrate 130 in this embodiment is made of optically transparent materials, such as glass, PMMA plastic, and the like. The substrate 130 has a plurality of partitions 131 , 132 , 133 and 134 , wherein the partition 131 is the Blu-ray partition 131 . The wavelength conversion material layer 140 is covered on a blue light subregion 131 of the substrate 130, and is covered at least on a part of the blue light subregion 131, for absorbing the blue light excitation light and emitting a subject light, so that the blue light subregion 131 is emitted by The mixed light composed of the stimulated light and the blue excitation light remaining in the blue light division, the color coordinate of the mixed light is closer to the predetermined blue light color coordinate than the color coordinate of the blue excitation light. The value range of the color coordinate of the received light is the same as that of the first embodiment.
在本实施例中，分区132至134中的至少一个包含波长转换材料(未显示)，其材料不同于波长转换材料层140，用于吸收蓝光激发光，并发出波长不同于蓝光激发光的波长的光，即可通过分区的波长转换材料来产生不同于蓝光的其它色光。分区的波长转换材料优选为磷光性材料、例如荧光粉、纳米材料(如量子点)等。此波长转换材料可沉积于基板130的表面上，或者掺杂于基板130的材料内。In this embodiment, at least one of the subregions 132 to 134 contains a wavelength conversion material (not shown), which is different from the wavelength conversion material layer 140, for absorbing the blue excitation light and emitting a wavelength different from the blue excitation light. The light that is different from the blue light can be produced by the partitioned wavelength conversion material. The partitioned wavelength conversion materials are preferably phosphorescent materials, such as fluorescent powder, nanomaterials (such as quantum dots), and the like. The wavelength conversion material can be deposited on the surface of the substrate 130 or doped into the material of the substrate 130 .
在本实施例中，基板130可例如为圆形的转轮，此转轮绕着转轴A来旋转，而基板130的这些分区131-134可依序地围绕此转轮的转轴A来设置，且这些分区131-134可为蓝光分区131、绿光分区132、红光分区133及白光分区134。绿光分区132、红光分区133及白光分区134上的波长转换材料分别优选在波长范围500～580nm、580～700nm、480～700nm发出光，使得光源110的蓝光激发光可分别在绿光分区132、红光分区133及白光分区134上转换成绿光、红光及白光。当基板130绕着转轴A来旋转时，基板130可相对于光源110来转动，以使不同的分区131-134在不同的时间暴露于蓝光激发光，因而可通过旋转的基板130来依序发出不同颜色的色光。In this embodiment, the substrate 130 can be, for example, a circular wheel, and the wheel rotates around the axis A, and the partitions 131-134 of the substrate 130 can be sequentially arranged around the axis A of the wheel, And these partitions 131 - 134 can be the blue partition 131 , the green partition 132 , the red partition 133 and the white partition 134 . The wavelength conversion materials on the green light subregion 132, the red light subregion 133 and the white light subregion 134 preferably emit light in the wavelength ranges of 500-580nm, 580-700nm, and 480-700nm, respectively, so that the blue light excitation light of the light source 110 can be respectively emitted in the green light subregion. 132. The red light subregion 133 and the white light subregion 134 are up-converted into green light, red light and white light. When the substrate 130 rotates around the rotation axis A, the substrate 130 can rotate relative to the light source 110, so that different partitions 131-134 are exposed to the blue excitation light at different times, and thus can be sequentially emitted by the rotating substrate 130. Shades of different colors.
在其它实施例中，基板130可具有更少(例如二个或三个)或更多(例如8个)的分区；基板130也可以只有一个蓝光分区，此时基板可无需相对于光源120运动，只要能保证蓝光分区能够设置于蓝光激发光的传播路径上即可。在基板具有至少两个分区时，基板也可以不能相对于光源120运动，而采用多个光源对应基板的各分区，例如，一个蓝光光源与基板的蓝光分区对应设置以得到蓝光，一个紫外光光源与基板的红光分区对应设置以得到红光。In other embodiments, the substrate 130 can have fewer (such as two or three) or more (such as 8) partitions; , as long as it can be ensured that the blue light partition can be set on the propagation path of the blue light excitation light. When the substrate has at least two partitions, the substrate may not move relative to the light source 120, and multiple light sources are used to correspond to the partitions of the substrate. For example, a blue light source is set corresponding to the blue partitions of the substrate to obtain blue light, and an ultraviolet light source Set corresponding to the red light division of the substrate to obtain red light.
在另一实施例中，基板130可具有至少一个绿光分区，其承载有用于吸收蓝光激发光并发出绿光的绿光荧光粉；至少一个黄光分区，其承载有用于吸收蓝光激发光并发出黄光的黄光荧光粉；或至少一个红光分区，承载有用于吸收蓝光激发光并发出红光的红光荧光粉。In another embodiment, the substrate 130 may have at least one green subregion, which carries green phosphor powder for absorbing blue excitation light and emitting green light; at least one yellow subregion, which carries green phosphor powder for absorbing blue excitation light and emitting green light. A yellow phosphor that emits yellow light; or at least one red region carrying a red phosphor that absorbs blue excitation light and emits red light.
请参照图4，其为本发明的投影装置的结构示意图。本实施例的照明装置100可应用于投影系统，此投影系统可包括光源110、聚焦光学组件120、基板130、波长转换材料层140、光学积分器150、光学中继(relay)或收集器件160、棱镜170、微显示成像器(micro-display imager)180及投影透镜190。来自光源110的蓝光激发光可通过基板130来形成多色光，接着，此多色光可通过光学积分器150来进行强度均化(进行混杂)。光学中继160可将混杂后的光通过棱镜170来聚焦到微显示成像器180上。经过微显示成像器180调制过的光可由投影透镜190投影到显示屏幕上，通过微显示成像器180与基板130之间的同步操作，可实现一多色影像，其中微显示成像器180与基板130之间的同步操作可通过一信号处理器(未显示)来控制。Please refer to FIG. 4 , which is a schematic structural diagram of the projection device of the present invention. The lighting device 100 of this embodiment can be applied to a projection system, and the projection system can include a light source 110, a focusing optical assembly 120, a substrate 130, a wavelength conversion material layer 140, an optical integrator 150, and an optical relay (relay) or collection device 160 , prism 170, micro-display imager (micro-display imager) 180 and projection lens 190. The blue excitation light from the light source 110 can pass through the substrate 130 to form polychromatic light, and then the polychromatic light can pass through the optical integrator 150 for intensity averaging (mixing). Optical relay 160 may focus the mixed light through prism 170 onto microdisplay imager 180 . The light modulated by the micro-display imager 180 can be projected onto the display screen by the projection lens 190, and a multi-color image can be realized through the synchronous operation between the micro-display imager 180 and the substrate 130, wherein the micro-display imager 180 and the substrate The synchronous operation between 130 can be controlled by a signal processor (not shown).
在上述实施例中，要求波长装换材料层所发射的受激光的色坐标在CIE1931色品图中特定的位置。然而，由于实际中可选择的波长转换材料有限，因此有的波长转换材料发射的受激光的色坐标不能满足上述的要求。在本发明中，还可以利用滤光片对受激光进行过滤，使其达到上述的颜色要求。In the above embodiments, it is required that the color coordinates of the stimulated light emitted by the wavelength conversion material layer be at a specific position in the CIE1931 chromaticity diagram. However, due to the limited choice of wavelength conversion materials in practice, the color coordinates of the received light emitted by some wavelength conversion materials cannot meet the above requirements. In the present invention, an optical filter can also be used to filter the received light so as to meet the above-mentioned color requirements.
请参照图5，图5为本发明照明装置的第三实施例的结构示意图。第二实施例的照明装置200可包括光源210、基板230、波长转换材料层240，与第一实施例不同的是，本实施例还包括第一滤光片(或第一滤光层)250。Please refer to FIG. 5 , which is a schematic structural diagram of a third embodiment of the lighting device of the present invention. The lighting device 200 of the second embodiment may include a light source 210, a substrate 230, and a wavelength conversion material layer 240. Unlike the first embodiment, this embodiment also includes a first filter (or first filter layer) 250 .
第一滤光片250覆设于波长转换材料层240之上，即波长转换材料层240位于第一滤光片250与基板的蓝光分区231之间，第一滤光片只允许波长范围小于等于预定波长值的受激光透过。第一滤光片250与波长转换材料层240之间可选择性地具有一预设间距(亦即为空气间隙)，或者，第一滤光片250亦可紧贴于波长转换材料层240。The first optical filter 250 is covered on the wavelength conversion material layer 240, that is, the wavelength conversion material layer 240 is located between the first optical filter 250 and the blue light subregion 231 of the substrate, and the first optical filter only allows the wavelength range to be less than or equal to The subject light of a predetermined wavelength value is transmitted. Optionally, there is a predetermined distance between the first optical filter 250 and the wavelength conversion material layer 240 (that is, an air gap), or the first optical filter 250 can also be closely attached to the wavelength conversion material layer 240 .
请参照图6，图6为图5所示实施例中第一滤光片的透过率及受激光光谱的对应关系图。如图6所示，在本实施例中，第一滤光片250可仅允许波长范围约小于等于550nm的混合光通过。如图5所示，通过本实施例的波长转换材料层240及第一滤光片(第一滤光层)250，由蓝光分区231所发出的混合光的色坐标x值可小于0.3，其优选是大于等于0.1且小于等于0.2，例如0.15。在本实施例中，由蓝光分区231所发出的混合光的色坐标可为(0.16，0.052)，因此，通过第一滤光片250，由蓝光分区231所发出的混合光可进一步接近国际标准所规定的纯蓝光。Please refer to FIG. 6 . FIG. 6 is a corresponding relationship diagram between the transmittance of the first filter and the spectrum of the received light in the embodiment shown in FIG. 5 . As shown in FIG. 6 , in this embodiment, the first optical filter 250 can only allow the mixed light with a wavelength range less than or equal to about 550 nm to pass through. As shown in FIG. 5, through the wavelength conversion material layer 240 and the first filter layer (first filter layer) 250 of this embodiment, the color coordinate x value of the mixed light emitted by the blue light segment 231 can be less than 0.3, which is It is preferably greater than or equal to 0.1 and less than or equal to 0.2, such as 0.15. In this embodiment, the color coordinates of the mixed light emitted by the blue light zone 231 can be (0.16, 0.052), therefore, through the first filter 250, the mixed light emitted by the blue light zone 231 can be further close to the international standard Pure Blu-ray as prescribed.
因此，第一滤光片的作用在于，设置于混合光的出射光路上，用于过滤受激光使混合光的颜色更接近或达到预定的蓝光色坐标。Therefore, the function of the first filter is to be arranged on the outgoing light path of the mixed light, and to filter the received light so that the color of the mixed light is closer to or reaches a predetermined color coordinate of blue light.
如图5所示，在本实施例中，波长转换材料层240覆设于基板230的一侧的表面上，而第一滤光片250设置于波长转换材料层240上。在另一实施例中，第一滤光片250亦可设置于收集光学系统之后，或者位于系统中其它位置的光路上，本发明并不作限制。As shown in FIG. 5 , in this embodiment, the wavelength conversion material layer 240 is covered on one surface of the substrate 230 , and the first filter 250 is disposed on the wavelength conversion material layer 240 . In another embodiment, the first optical filter 250 may also be disposed after the collecting optical system, or on the optical path at other positions in the system, which is not limited in the present invention.
值得说明的是，由于蓝光激发光往往为相干光，因此在使用中需要使用消相干装置来消除原有的相干性。散射是最常用的消相干的方法。例如可以在本发明的波长转换材料层中，加入散射材料，这样在蓝光激发光入射时，波长转换材料层不仅可以吸收部分蓝光激发光并发射出受激光，还可以对没有被吸收的剩余的蓝光激发光进行散射以消除其相干性，并使最终本发明的照明装置的出射光中的相干光的成分大大降低。本发明的所有实施例中都可以在波长转换材料层中加入散射材料。It is worth noting that since the blue light excitation light is often coherent light, it is necessary to use a decoherence device to eliminate the original coherence in use. Scattering is the most commonly used method of decoherence. For example, a scattering material can be added to the wavelength conversion material layer of the present invention, so that when the blue light excitation light is incident, the wavelength conversion material layer can not only absorb part of the blue light excitation light and emit the received light, but also can absorb the remaining blue light that is not absorbed. The excitation light is scattered to eliminate its coherence, and finally the component of coherent light in the emitted light of the lighting device of the present invention is greatly reduced. In all embodiments of the present invention, scattering materials may be added to the wavelength conversion material layer.
除了在波长换换材料层中添加散射材料之外，还可以对基板、第一滤光片或第二滤光片的表面进行粗糙化处理来实现对蓝光激发光的散射。In addition to adding scattering materials to the wavelength conversion material layer, the surface of the substrate, the first optical filter or the second optical filter can also be roughened to realize the scattering of the blue excitation light.
请参照图8A和图8B，图8A为本发明照明装置的第四实施例中结构示意图，图8B显示依照图8A的局部放大图。第四实施例的照明装置400可包括光源410、基板430、波长转换材料层440及第一滤光片450。波长转换材料层440覆设于基板430的蓝光分区431上，用以吸收蓝光分区431的部分蓝光激发光，并发出受激光，以使波长转换材料层440的受激光与光源410蓝光分区剩余的蓝光激发光混成适合的混合蓝光。在第四实施例中，基板430可为透射蓝光激发光且反射受激光的第二滤光片，第一滤光片450设置于基板430(第二滤光片)的一侧上，波长转换材料层440覆设于第一滤光片450的面向基板430的一侧的表面上。此时，光源410的蓝光激发光是从基板430的背向波长转换材料层440层的一侧入射于基板430的。波长转换材料层440所产生的受激光可通过第一滤光片450来进行修饰。基板430与波长转换材料层440之间可选择性地具有一预设间距(亦即为空气间隙)，或者，基板430亦可紧贴于波长转换材料层440。Please refer to FIG. 8A and FIG. 8B . FIG. 8A is a schematic structural diagram of a fourth embodiment of the lighting device of the present invention, and FIG. 8B shows a partial enlarged view according to FIG. 8A . The lighting device 400 of the fourth embodiment may include a light source 410 , a substrate 430 , a wavelength conversion material layer 440 and a first filter 450 . The wavelength conversion material layer 440 is covered on the blue light subregion 431 of the substrate 430, and is used to absorb part of the blue light excitation light of the blue light subregion 431, and emit the subject light, so that the subject light of the wavelength conversion material layer 440 and the rest of the blue light subregion of the light source 410 The blue excitation light is mixed into a suitable mixed blue light. In the fourth embodiment, the substrate 430 can be a second filter that transmits the blue excitation light and reflects the received light. The first filter 450 is arranged on one side of the substrate 430 (the second filter), and the wavelength conversion The material layer 440 is covered on the surface of the first filter 450 facing the substrate 430 . At this time, the blue excitation light of the light source 410 is incident on the substrate 430 from the side of the substrate 430 facing away from the wavelength conversion material layer 440 . The detected light generated by the wavelength conversion material layer 440 can be modified by the first filter 450 . Optionally, there is a predetermined distance between the substrate 430 and the wavelength conversion material layer 440 (that is, an air gap), or the substrate 430 can also be closely attached to the wavelength conversion material layer 440 .
再者，如图8A与8B所示，第一滤光片450可具有表面微结构451，其形成于第一滤光片450的面向基板430的一侧表面上，而波长转换材料层440的荧光材料可填入于表面微结构451的凹陷处。因此，通过控制表面微结构451的深度和形状，可控制波长转换材料层440的涂布量，进而可精确控制出射光的颜色。同时，从宏观上看，表面微结构可以等同于表面的粗糙化处理，即当蓝光激发光入射于该微结构表面时，会发射一定程度的散射，用于消除激光的相干性。Moreover, as shown in FIGS. 8A and 8B , the first optical filter 450 may have a surface microstructure 451 formed on the surface of the first optical filter 450 facing the substrate 430 , and the wavelength conversion material layer 440 Fluorescent material can be filled into the depressions of the surface microstructure 451 . Therefore, by controlling the depth and shape of the surface microstructure 451 , the coating amount of the wavelength conversion material layer 440 can be controlled, and thus the color of the emitted light can be precisely controlled. At the same time, from a macroscopic point of view, the surface microstructure can be equivalent to the surface roughening treatment, that is, when the blue light excitation light is incident on the surface of the microstructure, it will emit a certain degree of scattering to eliminate the coherence of the laser.
由于表面微结构451上镀膜存在困难，因此优选的，第一滤光片450上的镀膜位于第一滤光片450原理波长转换材料440的一侧。Due to the difficulty of coating on the surface microstructure 451 , preferably, the coating on the first filter 450 is located on the side of the first filter 450 where the wavelength converting material 440 is used.
请参照图9A和图9B，图9A为本发明照明装置的第五实施例的结构示意图，图9B为图9A的局部放大图。第五实施例的照明装置500可包括光源510、基板530、波长转换材料层540及第一滤光片(或第一滤光层)550。波长转换材料层540覆设于基板530的蓝光分区531上，用以吸收部分的蓝光激发光，并发出受激光，以使波长转换材料层540的受激光与蓝光分区剩余的蓝光激发光可混成适合的混合蓝光。在第五实施例中，第一滤光片550覆设于基板530的一侧的表面上，如图9B所示，基板530可具有表面微结构532，其形成于基板530的另一侧的表面上，而波长转换材料层540的荧光材料可填入于表面微结构532的凹陷处内。因此，通过控制表面微结构532的深度和形状，可控制波长转换材料层540的涂布量，进而可精确控制出射光的颜色。Please refer to FIG. 9A and FIG. 9B . FIG. 9A is a schematic structural diagram of a fifth embodiment of the lighting device of the present invention, and FIG. 9B is a partial enlarged view of FIG. 9A . The lighting device 500 of the fifth embodiment may include a light source 510 , a substrate 530 , a wavelength conversion material layer 540 and a first filter (or first filter layer) 550 . The wavelength conversion material layer 540 is covered on the blue light subregion 531 of the substrate 530, and is used to absorb part of the blue light excitation light and emit the subject light, so that the subject light of the wavelength conversion material layer 540 can be mixed with the remaining blue light excitation light of the blue light subregion. A good mix of Blu-rays. In the fifth embodiment, the first filter 550 is covered on the surface of one side of the substrate 530. As shown in FIG. 9B, the substrate 530 may have a surface microstructure 532 formed on the other side of the substrate 530 On the surface, the fluorescent material of the wavelength conversion material layer 540 can be filled into the depressions of the surface microstructure 532 . Therefore, by controlling the depth and shape of the surface microstructure 532, the coating amount of the wavelength conversion material layer 540 can be controlled, and thus the color of the emitted light can be precisely controlled.
请参照图10，其为本发明圆形基板的第六实施例的结构示意图。在第六实施例中，波长转换材料层640(如图10中的阴影区)覆设于基板630的蓝光分区631的部分区域上。此时，蓝光分区631包含调整子分区601以及空白子分区602，波长转换材料层640覆设于调整子分区601上，且调整子分区601上的此波长转换材料层640可具较高的浓度或较大厚度，以提升波长转换材料层640对蓝光激发光的吸收，例如可吸收100％的蓝光激发光。当利用本实施例的照明装置来形成多色光时，在蓝光分区631上可产生一蓝光-受激光的颜色序列，此时，可利用对一后端的光调制芯片(未显示)的同步控制对此颜色时序序列进行混光，以得到更接近国际标准所规定的纯蓝光。Please refer to FIG. 10 , which is a schematic structural diagram of a sixth embodiment of the circular substrate of the present invention. In the sixth embodiment, the wavelength conversion material layer 640 (shown as the shaded area in FIG. 10 ) covers a partial area of the blue light subregion 631 of the substrate 630 . At this time, the blue-ray sub-section 631 includes the adjustment sub-section 601 and the blank sub-section 602, the wavelength conversion material layer 640 covers the adjustment sub-section 601, and the wavelength conversion material layer 640 on the adjustment sub-section 601 can have a higher concentration or a larger thickness, so as to improve the absorption of the blue excitation light by the wavelength conversion material layer 640 , for example, it can absorb 100% of the blue excitation light. When the lighting device of this embodiment is used to form polychromatic light, a blue light-stimulated color sequence can be generated on the blue light subregion 631. At this time, a synchronous control pair of a back-end light modulation chip (not shown) can be used. This color timing sequence is mixed to obtain pure blue light that is closer to the international standard.
请参照图11，其为本发明照明装置的第七实施例的结构示意图。第七实施例的照明装置700可包括光源710、聚焦光学组件720、基板730及波长转换材料层740。光源710用于产生蓝光激发光，聚焦光学组件720用于将蓝光激发光聚焦至基板730的一个小的面积上。基板730允许相对于光源720运动，以使基板130的各个分区731、732及733轮流位于蓝光激发光的传播路径上。波长转换材料层740覆设于基板730的蓝光分区731上，用以吸收蓝光分区的部分蓝光激发光，并发出受激光，以使波长转换材料层740的受激光与蓝光分区剩余的蓝光激发光可混成适合的混合蓝光。在第七实施例中，基板730可为矩形移动板，不同颜色的分区731、732及733线性地配置于基板730上。当矩形的基板730线性振动时，这些分区731、732及733可被交替激发及产生交替颜色的色光。Please refer to FIG. 11 , which is a schematic structural diagram of a seventh embodiment of the lighting device of the present invention. The lighting device 700 of the seventh embodiment may include a light source 710 , a focusing optical component 720 , a substrate 730 and a wavelength conversion material layer 740 . The light source 710 is used to generate blue excitation light, and the focusing optical component 720 is used to focus the blue excitation light onto a small area of the substrate 730 . The substrate 730 is allowed to move relative to the light source 720 so that the respective partitions 731 , 732 and 733 of the substrate 130 are located on the propagation path of the blue excitation light in turn. The wavelength conversion material layer 740 is covered on the blue light sub-area 731 of the substrate 730, and is used to absorb part of the blue-light excitation light in the blue-light sub-area and emit the subject light, so that the subject light of the wavelength conversion material layer 740 and the remaining blue-light excitation light of the blue-light subsection Can be blended into a suitable hybrid Blu-ray. In the seventh embodiment, the substrate 730 can be a rectangular moving plate, and the partitions 731 , 732 and 733 of different colors are linearly arranged on the substrate 730 . When the rectangular substrate 730 vibrates linearly, the subregions 731 , 732 and 733 can be excited alternately and generate alternately colored light.
在本发明的上述实施例中，都是蓝光激发光从波长转换材料层的一侧入射，受激光和剩余的蓝光激发光的混合光从另一侧出射出来。实际上还可能受激光和剩余蓝光激发光还可能从波长转换材料层的同一侧出射出来。请参照图7，其为本发明照明装置的第八实施例中结构示意图。In the above embodiments of the present invention, the blue excitation light is incident from one side of the wavelength conversion material layer, and the mixed light of the excited light and the remaining blue excitation light is emitted from the other side. In fact, it is also possible that the excited light by the laser light and the remaining blue light can exit from the same side of the wavelength conversion material layer. Please refer to FIG. 7 , which is a schematic structural diagram of an eighth embodiment of the lighting device of the present invention.
本实施例的照明装置300可包括光源310、基板330、波长转换材料层340及第一滤光片350。与第三实施例不同的是，波长转换材料层340覆设于基板330的一侧的表面上，而第一滤光片350设置于波长转换材料层340上，且基板330具有一反射层332，位于波长转换材料层340的远离被蓝光激发光入射的一侧，用于反射一入射至基板330的蓝光激发光和受激光。反射层332贴附于或镀于基板330的表面。此时，光源310发出的蓝光激发光由第一滤光片350射到波长转换材料层340，而波长转换材料层340所产生的以各向同性发射的受激光可以分为两部分，一部分受激光直接出射于其上部的外部空间中，另一部分受激光则入射于发射层332表面并被其反射并最终出射于波长转换材料层340上部的外部空间中，与没有被波长转换材料层340吸收的剩余的蓝光激发光混合在一起，并通过第一滤光片350来进一步修正此混合蓝光。第一滤光片350与波长转换材料层340之间可选择性地具有一预设间距(亦即为空气间隙)，或者，第一滤光片350亦可紧贴于波长转换材料层340。The lighting device 300 of this embodiment may include a light source 310 , a substrate 330 , a wavelength conversion material layer 340 and a first filter 350 . The difference from the third embodiment is that the wavelength conversion material layer 340 is covered on one side surface of the substrate 330, and the first filter 350 is disposed on the wavelength conversion material layer 340, and the substrate 330 has a reflective layer 332 , located on the side of the wavelength conversion material layer 340 away from the incident blue-light excitation light, for reflecting the blue-light excitation light and the subject light incident on the substrate 330 . The reflective layer 332 is attached or plated on the surface of the substrate 330 . At this time, the blue excitation light emitted by the light source 310 is emitted to the wavelength conversion material layer 340 by the first filter 350, and the isotropic emitted light generated by the wavelength conversion material layer 340 can be divided into two parts, one part is received by The laser light is directly emitted in the external space above it, and another part of the received light is incident on the surface of the emitting layer 332 and is reflected by it, and finally exits in the external space above the wavelength conversion material layer 340, and is not absorbed by the wavelength conversion material layer 340. The remaining blue excitation light is mixed together, and the mixed blue light is further corrected by the first filter 350 . Optionally, there is a predetermined distance between the first optical filter 350 and the wavelength conversion material layer 340 (that is, an air gap), or the first optical filter 350 can also be closely attached to the wavelength conversion material layer 340 .
在上述第八实施例中，波长转换材料层340的出射光面向光源310，如果入射于光源310的表面将形成严重的光能量损失。因此在本发明的第九实施例中，还包括设置于波长转换材料层与光源之间的光引导装置，如图13所示。该光引导装置用于透射蓝光激发光，同时一反射的方式引导从波长转换材料层发射出来的受激光和未被吸收的剩余蓝光激发光的混合光从光源发出的蓝光激发光的入射光路中分离出来形成出射光，进而避免了该混合光入射到光源上造成的损失。In the above-mentioned eighth embodiment, the emitted light of the wavelength conversion material layer 340 faces the light source 310 , and if it is incident on the surface of the light source 310 , severe light energy loss will occur. Therefore, in the ninth embodiment of the present invention, a light guiding device disposed between the wavelength conversion material layer and the light source is further included, as shown in FIG. 13 . The light guiding device is used to transmit the blue excitation light, and at the same time guide the mixed light of the received light emitted from the wavelength conversion material layer and the remaining unabsorbed blue excitation light from the incident light path of the blue excitation light emitted by the light source in a reflective manner The separated light is separated to form outgoing light, thereby avoiding the loss caused by the incident light of the mixed light on the light source.
在本实施例的照明装置1600中，光引导装置为一个带有通光孔的弧形反射装置1070，光源810发出的蓝光激发光811穿过该弧形反射装置的通光孔入射于波长转换材料层840的表面。与第七实施例相同的，基板830表面具有一反射层，可以反射蓝光激发光和受激光出射于外部空间。由波长转换材料层840出射的光线经过弧形反射装置的通光孔周围的弧形反射面的反射，入射于光收集装置1090的入口。这样利用光引导装置1970，避免了出射光入射于光源810的表面。In the lighting device 1600 of this embodiment, the light guiding device is an arc reflector 1070 with a light hole, and the blue excitation light 811 emitted by the light source 810 is incident on the wavelength conversion device through the light hole of the arc reflector. The surface of material layer 840 . Same as the seventh embodiment, the surface of the substrate 830 has a reflective layer, which can reflect the blue excitation light and the received light to the external space. The light emitted from the wavelength conversion material layer 840 is reflected by the arc reflective surface around the light hole of the arc reflector, and enters the entrance of the light collecting device 1090 . In this way, the light guiding device 1970 is used to prevent the outgoing light from being incident on the surface of the light source 810 .
优选的，该弧形反射装置1070为半球形或半球形的一部分，波长转换材料层840被蓝光激发光入射的位置位于该半球形球心附近的第一点，光收集装置1090的入口位置位于该半球形球心附近的第二点。第一点和第二点关于该半球形的球心对称，这样就能够保证光线入射到光收集装置入口的效率达到比较优化的数值。Preferably, the curved reflecting device 1070 is a hemisphere or a part of a hemisphere, the wavelength conversion material layer 840 is incident on the blue light excitation light at the first point near the center of the hemisphere, and the entrance of the light collecting device 1090 is located at The second point near the center of the hemisphere. The first point and the second point are symmetrical about the center of the hemisphere, so that the efficiency of the light incident on the entrance of the light collecting device can be guaranteed to reach a relatively optimal value.
更优化的，该弧形反射面1070为半椭球形或半椭球形的一部分，波长转换材料层840被蓝光激发光入射的位置位于该半椭球形的一个焦点上，光收集装置1090的入口位置位于该半椭球形的第二点焦点上。这样就能够保证光线入射到光收集装置入口的效率达到最高。More optimally, the arc-shaped reflective surface 1070 is a semi-ellipsoid or a part of a semi-ellipsoid, the position where the wavelength conversion material layer 840 is incident by the blue excitation light is located at a focal point of the semi-ellipsoid, and the entrance position of the light collecting device 1090 Located at the second focus of the semi-ellipsoid. In this way, it can be ensured that the efficiency of light incident on the entrance of the light collecting device reaches the highest.
进一步的，本实施例还包括驱动装置1610，波长转换材料层840和基板830分别与该驱动装置连接固定；该驱动装置驱动基板830和波长转换材料层840围绕旋转轴A做转动，使得基板不同区域依次被蓝光激发光811所照射并发出不同颜色的光已形成色光时序，或者基板上只有一个蓝光分区，随着驱动装置1610的转动本照明装置1600的发射光的颜色保持蓝色。Further, this embodiment also includes a driving device 1610, the wavelength conversion material layer 840 and the substrate 830 are respectively connected and fixed to the driving device; the driving device drives the substrate 830 and the wavelength conversion material layer 840 to rotate around the rotation axis A, so that the substrates are different The areas are sequentially irradiated by the blue excitation light 811 and emit light of different colors to form a color light sequence, or there is only one blue light partition on the substrate, and the color of the light emitted by the lighting device 1600 remains blue as the driving device 1610 rotates.
优选的，本实施例的照明装置还包括至少一个第一滤光片，该第一滤光片与驱动装置1610连接并固定，并与波长转换材料层840同步运动。该第一滤光片的角度大小与基板830上的蓝光分区的角度大小相同，位置与基板830上的蓝光分区位置相对应，即当基板上的蓝光分区位于蓝光激发光照射时，所产生的出射光经过光收集装置1090后入射于第一滤光片850。Preferably, the illuminating device of this embodiment further includes at least one first optical filter, which is connected and fixed to the driving device 1610 and moves synchronously with the wavelength conversion material layer 840 . The angle of the first optical filter is the same as that of the blue light subregion on the substrate 830, and its position corresponds to the position of the blue light subregion on the substrate 830, that is, when the blue light subregion on the substrate is irradiated with the blue light excitation light, the generated The outgoing light is incident on the first filter 850 after passing through the light collecting device 1090 .
与第七实施例不同的是，本实施例中的第一滤光片850位于光收集装置1090之后，其好处在于光线由于经过了光收集装置1090的收集而入射角变得较小，因此滤光效果比较好。Different from the seventh embodiment, the first optical filter 850 in this embodiment is located behind the light collecting device 1090, which has the advantage that the incident angle of light becomes smaller due to the collection of the light collecting device 1090, so the filter The light effect is better.
值得注意的是，本发明的所有实施例都可以应用驱动装置，使波长转换材料层与蓝光激发光发生相对运动。此时，上述实施例中的第二滤光片同样需要与驱动装置连接并固定，并与波长转换材料层同步运动。It should be noted that all embodiments of the present invention can use a driving device to make the wavelength conversion material layer move relative to the blue excitation light. At this time, the second optical filter in the above embodiment also needs to be connected and fixed with the driving device, and move synchronously with the wavelength conversion material layer.
值得说明的是，第八实施例中的光引导装置有多种变形。除了弧形反射装置外，光引导装置还可以是带有通光孔和位于通光孔四周的反射镜的平面反射装置。与第八实施例中的弧形反射装置相似的，蓝光激发光可以穿过该平面反射装置的通光孔入射于波长转换材料层，波长转换材料层发出的受激光和剩余蓝光激发光的混合光则被位于平面反射装置的通光孔四周的反射镜的反射形成光源装置的出射光；平面反射装置有效避免了该出射光入射于光源的表面。It is worth noting that there are many variations of the light guiding device in the eighth embodiment. In addition to the curved reflector, the light guiding device can also be a planar reflector with a light through hole and reflectors located around the light through hole. Similar to the arc reflector in the eighth embodiment, the blue excitation light can pass through the light hole of the plane reflector and be incident on the wavelength conversion material layer, and the mixture of the stimulated light emitted by the wavelength conversion material layer and the remaining blue excitation light The light is reflected by the mirrors located around the light hole of the plane reflection device to form the outgoing light of the light source device; the plane reflection device effectively prevents the outgoing light from being incident on the surface of the light source.
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。In summary, although the present invention has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present invention, and those of ordinary skill in the art can make various modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope defined in the claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510216706.6ACN104880897A (en) | 2012-03-19 | 2012-03-19 | Lighting device and projection device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510216706.6ACN104880897A (en) | 2012-03-19 | 2012-03-19 | Lighting device and projection device |
| CN201110397907.2ACN102707551B (en) | 2011-08-04 | 2012-03-19 | Lighting and Projectors |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110397907.2ADivisionCN102707551B (en) | 2011-08-04 | 2012-03-19 | Lighting and Projectors |
| Publication Number | Publication Date |
|---|---|
| CN104880897Atrue CN104880897A (en) | 2015-09-02 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510216708.5AActiveCN105022218B (en) | 2012-03-19 | 2012-03-19 | Lighting device and projection arrangement |
| CN201510216707.0AActiveCN105022217B (en) | 2012-03-19 | 2012-03-19 | Lighting device and projection arrangement |
| CN201510216595.9AActiveCN104880896B (en) | 2012-03-19 | 2012-03-19 | Lighting device and projection arrangement |
| CN201510216706.6APendingCN104880897A (en) | 2012-03-19 | 2012-03-19 | Lighting device and projection device |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510216708.5AActiveCN105022218B (en) | 2012-03-19 | 2012-03-19 | Lighting device and projection arrangement |
| CN201510216707.0AActiveCN105022217B (en) | 2012-03-19 | 2012-03-19 | Lighting device and projection arrangement |
| CN201510216595.9AActiveCN104880896B (en) | 2012-03-19 | 2012-03-19 | Lighting device and projection arrangement |
| Country | Link |
|---|---|
| CN (4) | CN105022218B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292142B (en)* | 2015-05-14 | 2018-12-11 | 深圳市光峰光电技术有限公司 | A kind of light emitting device and its light-emitting control method, projection device |
| US10824068B2 (en) | 2017-11-07 | 2020-11-03 | Coretronic Corporation | Phosphor wheel and projector using the phosphor wheel |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573030B (en)* | 2015-12-18 | 2017-12-19 | 海信集团有限公司 | A light source and laser projection device |
| CN105573031B (en)* | 2015-12-18 | 2018-09-21 | 海信集团有限公司 | A kind of light source and laser projection device |
| US10133164B2 (en)* | 2016-05-25 | 2018-11-20 | Panasonic Intellectual Property Management Co., Ltd. | Projection display apparatus for improving the chromaticity of blue light |
| CN106200237A (en) | 2016-09-09 | 2016-12-07 | 合肥鑫晟光电科技有限公司 | Fluorescent wheel and projector |
| CN109782516B (en)* | 2017-11-15 | 2021-10-22 | 中强光电股份有限公司 | Projectors and wavelength conversion components |
| CN110094646A (en)* | 2018-01-29 | 2019-08-06 | 上海午井光电科技有限公司 | Laser illumination system equipped with Wavelength converter |
| CN110596999B (en) | 2018-06-13 | 2021-10-29 | 中强光电股份有限公司 | Illumination system, projection device, and projection method of the projection device |
| CN110596998B (en) | 2018-06-13 | 2021-10-26 | 中强光电股份有限公司 | Illumination system, projection device and projection method of projection device |
| CN110597000A (en) | 2018-06-13 | 2019-12-20 | 中强光电股份有限公司 | Illumination system, projection device, and projection method of the projection device |
| DE102018127831A1 (en)* | 2018-11-07 | 2020-05-07 | Schott Ag | Illumination device, preferably with an adjustable or set color location, and their use and method for setting the color location of an illumination device |
| CN114135801A (en)* | 2020-09-03 | 2022-03-04 | 上海蓝湖照明科技有限公司 | A reflective wavelength conversion device and a lamp |
| CN114135803A (en)* | 2020-09-03 | 2022-03-04 | 上海蓝湖照明科技有限公司 | Laser light-emitting device and lamp |
| CN114135797A (en)* | 2020-09-03 | 2022-03-04 | 上海蓝湖照明科技有限公司 | Color temperature controllable laser light emitting device and lamp |
| CN114135800A (en)* | 2020-09-03 | 2022-03-04 | 上海蓝湖照明科技有限公司 | Laser light-emitting device and lamp |
| CN114646026A (en)* | 2020-12-21 | 2022-06-21 | 杨毅 | Wavelength conversion device and light-emitting device with selective transmission device and a lamp |
| CN115505152A (en)* | 2021-06-23 | 2022-12-23 | 北京科技大学 | Film for absorbing blue light green light and preparation method and application thereof |
| CN116107143A (en)* | 2021-11-11 | 2023-05-12 | 中强光电股份有限公司 | Color wheel module and projection device |
| CN114217499A (en)* | 2022-01-13 | 2022-03-22 | 扬州吉新光电有限公司 | Wavelength conversion device and projection system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451685A (en)* | 2007-11-30 | 2009-06-10 | 财团法人工业技术研究院 | white light emitting device |
| CN101923223A (en)* | 2009-06-12 | 2010-12-22 | 绎立锐光科技开发(深圳)有限公司 | Polarized light source and polarization conversion method thereof, polarization conversion device and application system |
| CN101936505A (en)* | 2009-06-30 | 2011-01-05 | 卡西欧计算机株式会社 | Fluorescent wheel and light source device, projector |
| US20110006333A1 (en)* | 2008-02-28 | 2011-01-13 | Koninklijke Philips Electronics N.V. | Light emitting diode device |
| US20110116253A1 (en)* | 2009-11-18 | 2011-05-19 | Takashi Sugiyama | Semiconductor light source apparatus and lighting unit |
| CN102142510A (en)* | 2010-02-01 | 2011-08-03 | 深圳市光峰光电技术有限公司 | Solid light source based on optical wavelength conversion and application of solid light source |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3896074B2 (en)* | 2002-12-11 | 2007-03-22 | Ｎｅｃビューテクノロジー株式会社 | Color projector, color wheel used in the color projector, and display control method |
| JP2006285088A (en)* | 2005-04-04 | 2006-10-19 | Fujinon Corp | Color wheel |
| US8129737B2 (en)* | 2006-09-29 | 2012-03-06 | Osram Opto Semiconductors Gmbh | Optoelectronic component |
| US7547114B2 (en)* | 2007-07-30 | 2009-06-16 | Ylx Corp. | Multicolor illumination device using moving plate with wavelength conversion materials |
| US8916890B2 (en)* | 2008-03-19 | 2014-12-23 | Cree, Inc. | Light emitting diodes with light filters |
| JP4662185B2 (en)* | 2008-05-15 | 2011-03-30 | カシオ計算機株式会社 | Light source device and projector |
| CN101893204B (en)* | 2009-05-20 | 2012-03-07 | 绎立锐光科技开发(深圳)有限公司 | Light source and light conversion method thereof, light converter and application system of light source |
| JP5459537B2 (en)* | 2009-09-25 | 2014-04-02 | カシオ計算機株式会社 | Light source device and projector provided with light source device |
| JP5796272B2 (en)* | 2009-09-28 | 2015-10-21 | カシオ計算機株式会社 | Light source device, projection device, and projection method |
| JP5311137B2 (en)* | 2009-09-28 | 2013-10-09 | カシオ計算機株式会社 | Light source device and projector provided with light source device |
| CN102142511A (en)* | 2010-02-01 | 2011-08-03 | 深圳市光峰光电技术有限公司 | Solid-state light source based on optical wavelength conversion and packaging method thereof |
| JP5257420B2 (en)* | 2010-08-04 | 2013-08-07 | ウシオ電機株式会社 | Light source device |
| CN102073115A (en)* | 2010-11-19 | 2011-05-25 | 苏州佳世达光电有限公司 | Fluorescent powder color wheel and projector applying same |
| CN102393598B (en)* | 2011-11-03 | 2014-03-26 | 海信集团有限公司 | Light source device and projector adopting same |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451685A (en)* | 2007-11-30 | 2009-06-10 | 财团法人工业技术研究院 | white light emitting device |
| US20110006333A1 (en)* | 2008-02-28 | 2011-01-13 | Koninklijke Philips Electronics N.V. | Light emitting diode device |
| CN101923223A (en)* | 2009-06-12 | 2010-12-22 | 绎立锐光科技开发(深圳)有限公司 | Polarized light source and polarization conversion method thereof, polarization conversion device and application system |
| CN101936505A (en)* | 2009-06-30 | 2011-01-05 | 卡西欧计算机株式会社 | Fluorescent wheel and light source device, projector |
| US20110116253A1 (en)* | 2009-11-18 | 2011-05-19 | Takashi Sugiyama | Semiconductor light source apparatus and lighting unit |
| CN102142510A (en)* | 2010-02-01 | 2011-08-03 | 深圳市光峰光电技术有限公司 | Solid light source based on optical wavelength conversion and application of solid light source |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292142B (en)* | 2015-05-14 | 2018-12-11 | 深圳市光峰光电技术有限公司 | A kind of light emitting device and its light-emitting control method, projection device |
| US10824068B2 (en) | 2017-11-07 | 2020-11-03 | Coretronic Corporation | Phosphor wheel and projector using the phosphor wheel |
| Publication number | Publication date |
|---|---|
| CN105022218B (en) | 2017-06-20 |
| CN104880896B (en) | 2017-06-20 |
| CN105022218A (en) | 2015-11-04 |
| CN104880896A (en) | 2015-09-02 |
| CN105022217B (en) | 2017-09-22 |
| CN105022217A (en) | 2015-11-04 |
| Publication | Publication Date | Title |
|---|---|---|
| CN102707551B (en) | Lighting and Projectors | |
| CN105022218B (en) | Lighting device and projection arrangement | |
| JP6166723B2 (en) | Illumination device and projection device | |
| CN104516180B (en) | Optical wavelength conversion module, illumination system and projection device | |
| US9348204B2 (en) | Light source module with wavelength conversion module and projection apparatus | |
| TWI421448B (en) | Lighting device and image display device | |
| TWI437350B (en) | Illumination system and wavelength-transforming device thereof | |
| CN104977790B (en) | Light-source system and projection arrangement | |
| CN108227355A (en) | Light-source system and projection arrangement | |
| CN113900336B (en) | Light source assembly and projection equipment | |
| JP2019074677A (en) | Wavelength conversion element, wavelength conversion device, light source device, and projector | |
| JP2013047736A (en) | Light source device and projection type display device |
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