技术领域technical field
本发明涉及汽车照明领域，尤指一种激光照明系统及其汽车激光照明装置。The invention relates to the field of automobile lighting, in particular to a laser lighting system and an automobile laser lighting device thereof.
背景技术Background technique
随着科技的发展，交通工具的逐渐成熟，人们的日常出行越来越便捷。汽车的前照灯之于汽车就如同人的眼睛之于人，是汽车在夜晚行驶时至关重要的部分，当汽车的前照灯的亮度不足时，会极大地影响用户在汽车行驶时的安全性，无法给用户带来放心的使用体验。With the development of science and technology and the gradual maturity of transportation tools, people's daily travel is becoming more and more convenient. The headlights of a car are to a car just like the eyes of a person are to a person. They are a vital part of the car when driving at night. Security cannot bring users a safe experience.
随着照明技术的不断发展，汽车前照灯已经从氙气灯、卤素大灯逐渐发展到LED大灯，部分汽车也已经安装上了激光大灯，但因为激光技术的不够成熟以及成本的居高不下，导致激光大灯普及程度较低。With the continuous development of lighting technology, automobile headlights have gradually developed from xenon lamps and halogen headlights to LED headlights, and some cars have also been installed with laser headlights, but due to the immaturity of laser technology and the high cost No less, resulting in lower popularity of laser headlights.
除了亮度以外，对汽车前照灯的色度也有一定的要求，例如，由于激光发射器产生的激光的波长单一，并不满足前照灯色度的要求，所以出射的激光需要经过一个波长转换装置。In addition to brightness, there are also certain requirements for the chromaticity of automobile headlights. For example, because the laser light generated by the laser emitter has a single wavelength, it does not meet the requirements for chromaticity of headlights, so the emitted laser light needs to undergo a wavelength conversion. device.
目前，现有的激光大灯需要形成稳定的白光时，通常通过设置转动的荧光轮和多个透镜组，才能够实现光线波长的转换以及光线路径的多次转换，但上述结构较为复杂，光线在传输过程中损耗较大，激光大灯的发光效率较低。At present, when the existing laser headlights need to form stable white light, the conversion of the light wavelength and the multiple conversion of the light path can be realized by setting a rotating fluorescent wheel and multiple lens groups, but the above structure is relatively complicated, and the light In the transmission process, the loss is large, and the luminous efficiency of the laser headlight is low.
发明内容Contents of the invention
本发明的目的是提供一种激光照明系统及其汽车激光照明装置，触发激光无需通过多次路径的转换即可形成稳定白光，光线的传输路径较为简单，光线在传输过程中损耗较小，增大了激光照明系统的发光效率。The purpose of the present invention is to provide a laser lighting system and its automotive laser lighting device. The trigger laser can form stable white light without multiple path conversions. Increase the luminous efficiency of the laser lighting system.
本发明提供的技术方案如下：The technical scheme provided by the invention is as follows:
一种激光照明系统，包括激光光源、波长选择组件和波长转换组件，所述波长转换组件设置于所述激光光源与所述波长选择组件之间；所述激光光源用于向所述波长选择组件发射触发激光；所述波长转换组件用于在接收到所述触发激光时，发射照明荧光；所述波长选择组件用于在接收到所述触发激光以及所述照明荧光，反射波长小于或等于第一预设波长的所述触发激光和所述照明荧光，以及透射波长大于第二预设波长的所述照明荧光；所述第二预设波长大于所述第一预设波长。A laser illumination system, comprising a laser light source, a wavelength selection component and a wavelength conversion component, the wavelength conversion component is arranged between the laser light source and the wavelength selection component; the laser light source is used to provide emitting trigger laser light; the wavelength conversion component is used to emit illumination fluorescence when receiving the trigger laser light; the wavelength selection component is used to reflect the wavelength less than or equal to the first The triggering laser light and the illuminating fluorescent light have a predetermined wavelength, and the illuminating fluorescent light has a transmission wavelength greater than a second predetermined wavelength; the second predetermined wavelength is greater than the first predetermined wavelength.
本技术方案中，光线仅通过一次反射与一次的折射，触发激光无需通过多次路径的转换即可形成稳定白光，光线的传输路径较为简单，光线在传输过程中损耗较小，增大了激光照明系统的发光效率。In this technical solution, the light only passes through one reflection and one refraction, and the trigger laser can form stable white light without multiple path conversions. The transmission path of the light is relatively simple, and the loss of light during transmission is small, which increases the laser The luminous efficiency of the lighting system.
进一步，所述波长选择组件向远离所述波长转换组件的一侧弯曲；所述激光光源沿垂直于所述波长转换组件的方向，向所述波长选择组件发射所述触发激光。Further, the wavelength selection component is bent to a side away from the wavelength conversion component; the laser light source emits the trigger laser to the wavelength selection component in a direction perpendicular to the wavelength conversion component.
本技术方案中，通过波长选择组件形状的限定，发射至波长选择组件上的触发激光被波长选择组件反射后，触发激光能够汇聚，降低了触发激光反射后的宽度，减小了波长转换组件的需求宽度，继而增大了触发激光能够射入波长选择组件的面积，增大了激光照明系统的发光效率。In this technical solution, through the limitation of the shape of the wavelength selection component, the trigger laser light emitted to the wavelength selection component is reflected by the wavelength selection component, and the trigger laser light can be converged, which reduces the width of the trigger laser light after reflection, and reduces the wavelength conversion component. The width is required, which in turn increases the area where the trigger laser can be injected into the wavelength selection component, increasing the luminous efficiency of the laser lighting system.
进一步，所述波长选择组件为旋转体；所述波长转换组件沿所述波长选择组件的轴线方向上的投影，位于所述波长选择组件沿其轴线方向上的投影内。Further, the wavelength selection component is a rotating body; the projection of the wavelength conversion component along the axis of the wavelength selection component is located within the projection of the wavelength selection component along its axis.
本技术方案中，通过旋转设置的波长选择组件的设置，从波长转换组件外侧射入至波长选择组件上的触发激光，经过波长选择组件发射后均能够反射至波长转换组件上，增加了反射后的触发激光的汇聚程度，降低了触发激光反射后的面积，减小了波长转换组件的需求面积，继而增大了触发激光能够射入波长选择组件的面积，增大了激光照明系统的发光效率。In this technical solution, through the setting of the wavelength selection component set by rotation, the trigger laser light incident on the wavelength selection component from the outside of the wavelength conversion component can be reflected to the wavelength conversion component after being emitted by the wavelength selection component, which increases the reflection The convergence degree of the trigger laser reduces the area after the trigger laser reflection, reduces the required area of the wavelength conversion component, and then increases the area where the trigger laser can be injected into the wavelength selection component, and increases the luminous efficiency of the laser lighting system .
进一步，所述波长转换组件为旋转体，所述波长转换组件的轴线与所述波长选择组件的轴线重合。Further, the wavelength conversion component is a rotating body, and the axis of the wavelength conversion component coincides with the axis of the wavelength selection component.
本技术方案中，通过同轴设置的波长转换组件与波长选择组件的设置，增加了波长转换组件上能够接收到的反射的触发激光，增大了激光照明系统的发光效率。In the technical solution, the wavelength conversion component and the wavelength selection component arranged coaxially increase the reflected trigger laser light that can be received by the wavelength conversion component, thereby increasing the luminous efficiency of the laser lighting system.
进一步，还包括：光源汇聚组件，所述光源汇聚组件设置于所述波长选择组件远离所述激光光源的一侧；所述光源汇聚组件用于接收透射穿过所述波长选择组件的所述照明荧光，并控制接收到的所所述照明荧光平行出射。Further, it also includes: a light source converging component, the light source converging component is arranged on the side of the wavelength selection component away from the laser light source; the light source converging component is used to receive the illumination transmitted through the wavelength selection component Fluorescence, and control the parallel emission of the received fluorescence to the illumination.
本技术方案中，波长选择组件将照明荧光发散后，通过光源汇聚组件的设置，能够调节照明荧光的角度，继而实现了激光照明系统白光的平行出射。In this technical solution, after the wavelength selection component diverges the illumination fluorescence, the angle of the illumination fluorescence can be adjusted through the arrangement of the light source converging component, and then the parallel emission of white light from the laser illumination system is realized.
进一步，所述波长选择组件靠近所述波长转换组件的一侧为抛物面或半圆球面。Further, the side of the wavelength selection component close to the wavelength conversion component is a paraboloid or a hemispherical surface.
本技术方案中，通过波长选择组件的限定，波长选择组件在接收到平行射入的触发激光时，反射后的触发激光能够汇聚于一点，进一步增加了反射后的触发激光的聚焦程度，方便了波长转换组件位置的设置。In this technical solution, through the limitation of the wavelength selection component, when the wavelength selection component receives the parallel incident trigger laser light, the reflected trigger laser light can converge at one point, further increasing the focusing degree of the reflected trigger laser light, which is convenient Settings for the position of the wavelength conversion component.
进一步，当所述波长选择组件靠近所述波长转换组件的一侧为抛物面时，所述波长转换组件位于所述波长选择组件的焦点位置。Further, when the side of the wavelength selection component close to the wavelength conversion component is a paraboloid, the wavelength conversion component is located at the focal point of the wavelength selection component.
本技术方案中，通过将波长转换组件设置于波长选择组件的焦点位置，反射的触发激光均能够聚焦于波长转换组件的一点，减小了波长转换组件的需求面积，继而增大了触发激光能够射入波长选择组件的面积，增大了激光照明系统的发光效率。In this technical solution, by setting the wavelength conversion component at the focus position of the wavelength selection component, the reflected trigger laser can be focused on one point of the wavelength conversion component, which reduces the required area of the wavelength conversion component, and then increases the trigger laser. The area of the incident wavelength selection component increases the luminous efficiency of the laser lighting system.
进一步，当所述波长选择组件靠近所述波长转换组件的一侧为半圆球面时，沿平行于所述波长选择组件的轴线方向，所述波长转换组件与所述波长选择组件之间的最大间距为所述波长选择组件半径的一半。Further, when the side of the wavelength selection component close to the wavelength conversion component is a hemispherical surface, along the direction parallel to the axis of the wavelength selection component, the maximum distance between the wavelength conversion component and the wavelength selection component Choose half the radius of the component for the wavelength in question.
本技术方案中，本实施例中，通过将波长转换组件设置于波长选择组件的焦点位置，反射的触发激光均能够聚焦于波长转换组件的一点，减小了波长转换组件的需求面积，继而增大了触发激光能够射入波长选择组件的面积，增大了激光照明系统的发光效率。In this technical solution, in this embodiment, by setting the wavelength conversion component at the focus position of the wavelength selection component, the reflected trigger laser can be focused on one point of the wavelength conversion component, reducing the required area of the wavelength conversion component, and then increasing The area where the trigger laser can be injected into the wavelength selection component is enlarged, and the luminous efficiency of the laser illumination system is increased.
进一步，所述波长选择组件包括透射镜和半透半反膜；所述半透半反膜设置于所述透射镜靠近所述波长转换组件的一侧，所述半透半反膜在接收到所述触发激光以及所述照明荧光时，反射波长小于或等于第一预设波长的所述触发激光和所述照明荧光，以及透射波长大于第二预设波长的所述照明荧光。Further, the wavelength selection component includes a transmissive mirror and a semi-transparent and semi-reflective film; the semi-transparent and semi-reflective film is arranged on the side of the transmissive mirror close to the wavelength conversion component, and the semi-transparent and semi-reflective film receives When the triggering laser light and the illuminating fluorescent light are used, the triggering laser light and the illuminating fluorescent light whose wavelength is less than or equal to a first preset wavelength are reflected, and the illuminating fluorescent light whose wavelength is greater than a second preset wavelength is transmitted.
本技术方案中，通过半透半反膜的设置，实现基于波长的光线选择，且用户通过更换半透半反膜即可实现光线选择范围的更改，操作较为方便。In this technical solution, through the setting of the semi-transparent and semi-reflective film, the light selection based on the wavelength is realized, and the user can realize the change of the light selection range by replacing the semi-transparent and semi-reflective film, and the operation is more convenient.
进一步，所述触发激光的波长等于或略小于所述第一预设波长。Further, the wavelength of the trigger laser is equal to or slightly smaller than the first preset wavelength.
本技术方案中，通过减小触发激光的波长与第一预设波长之间的波长差，继而减小了触发激光与跃迁后的照明荧光之间的能量差，减小了触发激光在波长转换过程中的损耗，增大了激光照明系统的发光效率。In this technical solution, by reducing the wavelength difference between the wavelength of the trigger laser and the first preset wavelength, the energy difference between the trigger laser and the illuminated fluorescent light after the transition is reduced, and the wavelength conversion of the trigger laser is reduced. The loss in the process increases the luminous efficiency of the laser lighting system.
进一步，所述第二预设波长大于450nm，小于500nm。Further, the second preset wavelength is greater than 450nm and less than 500nm.
本技术方案中，通过第二预设波长范围的限定，复合形成的白光具有较大的波长范围，增大了激光照明系统的色度，且减小了短波蓝光复合在白光内的可能，增加了白光的安全性。In this technical solution, through the limitation of the second preset wavelength range, the white light formed by recombination has a larger wavelength range, which increases the chromaticity of the laser lighting system, and reduces the possibility of short-wave blue light recombining in white light, increasing the safety of white light.
进一步，所述波长转换组件为荧光粉或发光陶瓷或单晶激发材料。Further, the wavelength conversion component is phosphor powder or luminescent ceramic or single crystal excitation material.
本技术方案中，通过特定的材料的选用即可实现波长转换组件的功能。In the technical solution, the function of the wavelength conversion component can be realized through the selection of specific materials.
本发明的目的之一还在于提供一种汽车激光照明装置，包括一种激光照明系统。Another object of the present invention is to provide an automotive laser lighting device, including a laser lighting system.
与现有技术相比，本发明提供的一种激光照明系统及其汽车激光照明装置具有以下有益效果：Compared with the prior art, a laser lighting system and its automotive laser lighting device provided by the present invention have the following beneficial effects:
1、光线仅通过一次反射与一次的折射，激光无需通过多次路径的转换即可形成稳定白光，光线的传输路径较为简单，光线在传输过程中损耗较小，增大了激光照明系统的发光效率。1. The light only passes through one reflection and one refraction. The laser can form stable white light without multiple path conversions. The transmission path of the light is relatively simple, and the light loss during transmission is small, which increases the luminescence of the laser lighting system efficiency.
2、通过波长选择组件形状的限定，发射至波长选择组件上的触发激光被波长选择组件反射后，触发激光能够汇聚，降低了触发激光反射后的宽度，减小了波长转换组件的需求宽度，继而增大了触发激光能够射入波长选择组件的面积，增大了激光照明系统的发光效率。2. Through the limitation of the shape of the wavelength selection component, after the trigger laser emitted to the wavelength selection component is reflected by the wavelength selection component, the trigger laser can converge, reducing the width of the trigger laser after reflection, and reducing the required width of the wavelength conversion component. Then, the area where the trigger laser can be injected into the wavelength selection component is increased, and the luminous efficiency of the laser lighting system is increased.
3、通过波长选择组件的限定，波长选择组件在接收到平行射入的触发激光时，反射后的触发激光能够汇聚于一点，进一步增加了反射后的触发激光的聚焦程度，方便了波长转换组件位置的设置。3. Through the limitation of the wavelength selection component, when the wavelength selection component receives the parallel-injected trigger laser light, the reflected trigger laser light can converge at one point, which further increases the focusing degree of the reflected trigger laser light and facilitates the wavelength conversion component. Location settings.
4、通过将波长转换组件设置于波长选择组件的焦点位置，反射的触发激光均能够聚焦于波长转换组件的一点，减小了波长转换组件的需求面积，继而增大了触发激光能够射入波长选择组件的面积，增大了激光照明系统的发光效率。4. By setting the wavelength conversion component at the focus position of the wavelength selection component, the reflected trigger laser can be focused on one point of the wavelength conversion component, reducing the required area of the wavelength conversion component, and then increasing the wavelength that the trigger laser can inject Selecting the area of the components increases the luminous efficiency of the laser lighting system.
附图说明Description of drawings
下面将以明确易懂的方式，结合附图说明优选实施方式，对一种激光照明系统及其汽车激光照明装置的上述特性、技术特征、优点及其实现方式予以进一步说明。In the following, preferred embodiments will be described in a clear and understandable manner with reference to the accompanying drawings, and the above-mentioned characteristics, technical features, advantages and implementation methods of a laser lighting system and its automotive laser lighting device will be further described.
图1是本发明一种激光照明系统的结构示意图；Fig. 1 is the structural representation of a kind of laser illumination system of the present invention;
图2是本发明一种激光照明系统中波长选择组件的透射光谱图；Fig. 2 is the transmission spectrum diagram of the wavelength selection component in a kind of laser illumination system of the present invention;
图3是本发明另一种激光照明系统的结构示意图；Fig. 3 is the structural representation of another kind of laser illumination system of the present invention;
图4是本发明又一种激光照明系统的结构示意图；Fig. 4 is a structural schematic diagram of yet another laser lighting system of the present invention;
图5是本发明一种汽车激光照明装置的结构示意图。Fig. 5 is a structural schematic diagram of an automobile laser lighting device according to the present invention.
附图标号说明：10.激光照明系统，11.激光光源，12.波长选择组件，13.波长转换组件，14.光源汇聚组件，20.照明透镜组，30.DMD，40.投影透镜组。Description of reference numerals: 10. Laser illumination system, 11. Laser light source, 12. Wavelength selection component, 13. Wavelength conversion component, 14. Light source converging component, 20. Illumination lens group, 30. DMD, 40. Projection lens group.
具体实施方式Detailed ways
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对照附图说明本发明的具体实施方式。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图，并获得其他的实施方式。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.
为使图面简洁，各图中只示意性地表示出了与发明相关的部分，它们并不代表其作为产品的实际结构。另外，以使图面简洁便于理解，在有些图中具有相同结构或功能的部件，仅示意性地绘示了其中的一个，或仅标出了其中的一个。在本文中，“一个”不仅表示“仅此一个”，也可以表示“多于一个”的情形。In order to keep the drawings concise, each drawing only schematically shows the parts related to the invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".
根据本发明提供的一种实施例，如图1所示，一种激光照明系统10，包括激光光源11、波长选择组件12和波长转换组件13，波长转换组件13设置于激光光源11与波长选择组件12之间，本实施例中，激光光源11能够设置在左侧，波长转换组件13设置在中部，波长选择组件12能够设置在右侧。According to an embodiment provided by the present invention, as shown in FIG. 1 , a laser illumination system 10 includes a laser light source 11, a wavelength selection component 12 and a wavelength conversion component 13, and the wavelength conversion component 13 is arranged between the laser light source 11 and the wavelength selection component. Between the components 12, in this embodiment, the laser light source 11 can be arranged on the left, the wavelength conversion component 13 can be arranged in the middle, and the wavelength selection component 12 can be arranged on the right.
激光光源11能够向右侧的波长选择组件12发射触发激光，激光光源11能够设置为一个或多个。The laser light source 11 can emit trigger laser light to the wavelength selection component 12 on the right, and there can be one or more laser light sources 11 .
波长选择组件12能够反射波长小于或等于第一预设波长的光线，因此，波长选择组件12接收触发激光，且在触发激光的波长小于或等于第一预设波长时，波长选择组件12能够反射该触发激光。The wavelength selection component 12 can reflect light with a wavelength less than or equal to the first preset wavelength. Therefore, the wavelength selection component 12 receives the trigger laser, and when the wavelength of the trigger laser is less than or equal to the first preset wavelength, the wavelength selection component 12 can reflect That triggers the laser.
反射后的触发激光能够向左侧发射，并发射于激光光源11与波长选择组件12之间的波长转换组件13上；波长转换组件13在接收到触发激光时，能够发射照明荧光；具体地，波长转换组件13能够将短波长的光线转换成为长波长的光线，更具体的，波长转换组件13能够接收蓝色或紫色的触发激光，继而波长转换组件13能够将触发激光跃迁形成蓝色或绿色或红色的照明荧光。The reflected trigger laser can be emitted to the left, and emitted on the wavelength conversion component 13 between the laser light source 11 and the wavelength selection component 12; the wavelength conversion component 13 can emit illumination fluorescence when receiving the trigger laser; specifically, The wavelength conversion component 13 can convert short-wavelength light into long-wavelength light. More specifically, the wavelength conversion component 13 can receive blue or violet trigger laser light, and then the wavelength conversion component 13 can convert the trigger laser light into blue or green or red fluorescent lighting.
波长选择组件12在接收到照明荧光时，能够透射波长大于第二预设波长的所述照明荧光；第二预设波长大于所述第一预设波长，即波长选择组件12能够反射波长较短的光线，而折射波长较长的光线。When the wavelength selection component 12 receives the illumination fluorescence, it can transmit the illumination fluorescence with a wavelength greater than the second preset wavelength; the second preset wavelength is greater than the first preset wavelength, that is, the wavelength selection component 12 can reflect the fluorescence with a shorter wavelength light and refract light with longer wavelengths.
在波长选择组件12在接收到照明荧光时，当照明荧光中存在波长小于或等于第一预设波长的照明荧光时，波长选择组件12也能够继续反射上述照明荧光。When the wavelength selection component 12 receives the illumination fluorescence, if there is illumination fluorescence with a wavelength less than or equal to the first preset wavelength in the illumination fluorescence, the wavelength selection component 12 can also continue to reflect the illumination fluorescence.
本实施例中，光线仅通过一次反射与一次的折射，触发激光无需通过多次路径的转换即可形成稳定白光，光线的传输路径较为简单，光线在传输过程中损耗较小，增大了激光照明系统10的发光效率。In this embodiment, the light only undergoes one reflection and one refraction, and the trigger laser can form stable white light without multiple path conversions. The transmission path of the light is relatively simple, and the loss of the light during transmission is small, increasing the laser The luminous efficiency of the lighting system 10 .
具体地，本实施例中，触发激光的波长等于或略小于第一预设波长；通过减小触发激光的波长与第一预设波长之间的波长差，继而减小了触发激光与跃迁后的照明荧光之间的能量差，减小了触发激光在波长转换过程中的损耗，增大了激光照明系统10的发光效率。Specifically, in this embodiment, the wavelength of the trigger laser is equal to or slightly smaller than the first preset wavelength; by reducing the wavelength difference between the wavelength of the trigger laser and the first preset wavelength, the difference between the trigger laser and the post-transition The energy difference between the illuminating fluorescent lights reduces the loss of the trigger laser in the wavelength conversion process and increases the luminous efficiency of the laser illuminating system 10 .
如图2所示，第二预设波长大于450nm，小于500nm；优选地，第二预设波长为470nm；通过第二预设波长范围的限定，复合形成的白光具有较大的波长范围，增大了激光照明系统10的色度，且减小了短波蓝光复合在白光内的可能，增加了白光的安全性。As shown in Figure 2, the second preset wavelength is greater than 450nm and less than 500nm; preferably, the second preset wavelength is 470nm; through the limitation of the second preset wavelength range, the white light formed by recombination has a larger wavelength range, increasing The chromaticity of the laser lighting system 10 is increased, and the possibility of short-wave blue light compounding in the white light is reduced, and the safety of the white light is increased.
第一预设波长为440nm至480nm，优选地，第一预设波长为450nm。The first preset wavelength is 440nm to 480nm, preferably, the first preset wavelength is 450nm.
在第一预设波长与第二预设波长之间的光线，波长选择组件12的透射率随着波长的增大而增大。For light between the first preset wavelength and the second preset wavelength, the transmittance of the wavelength selection component 12 increases as the wavelength increases.
更具体地，在波长小于或等于450nm的范围内，波长选择组件12的透射率小于0.5％；在波长大于470nm的范围内，波长选择组件12的透射率大于97.5％。More specifically, in the range of wavelength less than or equal to 450nm, the transmittance of the wavelength selection component 12 is less than 0.5%; in the range of wavelength greater than 470nm, the transmittance of the wavelength selection component 12 is greater than 97.5%.
波长转换组件13为荧光粉或发光陶瓷或单晶激发材料；本实施例中，通过特定的材料的选用即可实现波长转换组件13的功能。The wavelength conversion component 13 is phosphor powder or luminescent ceramic or single crystal excitation material; in this embodiment, the function of the wavelength conversion component 13 can be realized by selecting a specific material.
根据本发明提供的另一种实施例，一种激光照明系统10，本实施例与第一种实施例的区别在于波长选择组件12的具体结构。According to another embodiment provided by the present invention, a laser illumination system 10 , the difference between this embodiment and the first embodiment lies in the specific structure of the wavelength selection component 12 .
在第一种实施例的基础上，本实施例中，波长选择组件12包括透射镜和半透半反膜，透射镜为厚度相同的平面镜或曲面镜。On the basis of the first embodiment, in this embodiment, the wavelength selection component 12 includes a transmissive mirror and a semi-transparent and semi-reflective film, and the transmissive mirror is a plane mirror or a curved mirror with the same thickness.
半透半反膜设置于透射镜靠近波长转换组件13的一侧，即半透半反膜设置在透射镜的左侧，半透半反膜在接收到触发激光以及照明荧光时，反射波长小于或等于第一预设波长的触发激光和照明荧光，以及透射波长大于第二预设波长的所述照明荧光。The semi-transparent and semi-reflective film is arranged on the side of the transmissive mirror close to the wavelength conversion component 13, that is, the semi-transparent and semi-reflective film is arranged on the left side of the transmissive mirror, and the semi-transparent and semi-reflective film has a reflection wavelength less than Or the triggering laser light and the illuminating fluorescent light having a wavelength equal to a first preset wavelength, and the illuminating fluorescent light having a transmission wavelength greater than a second preset wavelength.
本实施例中，通过半透半反膜的设置，实现基于波长的光线选择，且用户通过更换半透半反膜即可实现光线选择范围的更改，操作较为方便。In this embodiment, through the setting of the semi-transparent and semi-reflective film, the light selection based on the wavelength is realized, and the user can change the light selection range by replacing the semi-transparent and semi-reflective film, and the operation is more convenient.
具体地，投射镜的右侧还设有增透膜，通过增透膜的设置，减小了光线穿过透射镜的损耗，增大了激光照明系统10的发光效率。Specifically, an anti-reflection film is provided on the right side of the projection mirror. The anti-reflection film reduces the loss of light passing through the transmission mirror and increases the luminous efficiency of the laser lighting system 10 .
根据本发明提供的又一种实施例，如图3和图4所示，一种激光照明系统10，本实施例与第一种实施例的区别在于波长选择组件12的具体结构。According to yet another embodiment provided by the present invention, as shown in FIG. 3 and FIG. 4 , a laser illumination system 10 , the difference between this embodiment and the first embodiment lies in the specific structure of the wavelength selection component 12 .
在第一种实施例的基础上，本实施例中，波长选择组件12向远离波长转换组件13的一侧弯曲，即波长选择组件12能够向右侧弯曲；激光光源11沿垂直于波长转换组件13的方向，向波长选择组件12发射触发激光，即激光光源11能够水平向右侧发射触发激光。On the basis of the first embodiment, in this embodiment, the wavelength selection component 12 is bent to the side away from the wavelength conversion component 13, that is, the wavelength selection component 12 can be bent to the right; the laser light source 11 is perpendicular to the wavelength conversion component. 13 to emit the trigger laser to the wavelength selection component 12, that is, the laser light source 11 can emit the trigger laser horizontally to the right.
本实施例中，通过波长选择组件12形状的限定，发射至波长选择组件12上的触发激光被波长选择组件12反射后，触发激光能够汇聚，降低了触发激光反射后的宽度，减小了波长转换组件13的需求宽度，继而增大了触发激光能够射入波长选择组件12的面积，增大了激光照明系统10的发光效率。In this embodiment, through the limitation of the shape of the wavelength selection component 12, after the trigger laser light emitted to the wavelength selection component 12 is reflected by the wavelength selection component 12, the trigger laser light can converge, reducing the width of the trigger laser light after reflection, and reducing the wavelength. The required width of the conversion component 13 increases the area where the trigger laser light can enter the wavelength selection component 12 , thereby increasing the luminous efficiency of the laser illumination system 10 .
波长选择组件12为旋转体，即波长选择组件12的中部能够向右侧弯曲；波长转换组件13沿波长选择组件12的轴线方向上的投影，位于波长选择组件12沿其轴线方向上的投影内，即在竖直平面内，波长选择组件12的面积大于波长转换组件13的面积。The wavelength selection component 12 is a rotating body, that is, the middle part of the wavelength selection component 12 can be bent to the right; the projection of the wavelength conversion component 13 along the axis direction of the wavelength selection component 12 is located in the projection of the wavelength selection component 12 along its axis direction , that is, in the vertical plane, the area of the wavelength selection component 12 is larger than the area of the wavelength conversion component 13 .
因此，波长转换组件13与波长选择组件12的外端之间设有间隙，触发激光即可从波长转换组件13与波长选择组件12之间的间隙射入至波长选择组件12上。Therefore, a gap is provided between the wavelength conversion component 13 and the outer end of the wavelength selection component 12 , and the trigger laser can be incident on the wavelength selection component 12 from the gap between the wavelength conversion component 13 and the wavelength selection component 12 .
本实施例中，通过旋转设置的波长选择组件12的设置，从波长转换组件13外侧射入至波长选择组件12上的触发激光，经过波长选择组件12发射后均能够反射至波长转换组件13上，增加了反射后的触发激光的汇聚程度，降低了触发激光反射后的面积，减小了波长转换组件13的需求面积，继而增大了触发激光能够射入波长选择组件12的面积，增大了激光照明系统10的发光效率。In this embodiment, through the setting of the wavelength selection component 12 set by rotation, the trigger laser light incident on the wavelength selection component 12 from the outside of the wavelength conversion component 13 can be reflected to the wavelength conversion component 13 after being emitted by the wavelength selection component 12 , increasing the converging degree of the reflected trigger laser, reducing the reflected area of the trigger laser, reducing the required area of the wavelength conversion component 13, and then increasing the area where the trigger laser can be injected into the wavelength selection component 12, increasing The luminous efficiency of the laser lighting system 10 is improved.
具体地，波长转换组件13为旋转体，波长转换组件13的轴线与波长选择组件12的轴线重合；本实施例中，通过同轴设置的波长转换组件13与波长选择组件12的设置，增加了波长转换组件13上能够接收到的反射的触发激光，增大了激光照明系统10的发光效率。Specifically, the wavelength conversion component 13 is a rotating body, and the axis of the wavelength conversion component 13 coincides with the axis of the wavelength selection component 12; The reflected trigger laser light that can be received by the wavelength conversion component 13 increases the luminous efficiency of the laser illumination system 10 .
根据上述实施例的改进，本实施例中，还包括光源汇聚组件14，光源汇聚组件14设置于波长选择组件12远离激光光源11的一侧，即光源汇聚组件14设置在波长选择组件12的右侧；光源汇聚组件14用于接收透射穿过波长选择组件12的照明荧光，并控制接收到的照明荧光平行出射。According to the improvement of the above-mentioned embodiment, in this embodiment, a light source converging component 14 is also included, and the light source converging component 14 is arranged on the side of the wavelength selection component 12 away from the laser light source 11, that is, the light source converging component 14 is arranged on the right side of the wavelength selection component 12. Side: the light source converging component 14 is used to receive the illuminating fluorescence transmitted through the wavelength selection component 12, and control the received illuminating fluorescence to exit in parallel.
本实施例中，波长选择组件12将照明荧光发散后，通过光源汇聚组件14的设置，能够调节照明荧光的角度，继而实现了激光照明系统10白光的平行出射。In this embodiment, after the wavelength selection component 12 diverges the illumination fluorescence, the angle of the illumination fluorescence can be adjusted through the arrangement of the light source converging component 14 , and then the parallel emission of white light from the laser illumination system 10 is realized.
具体地，光源汇聚组件14为一个或多个透镜，且透镜为凸透镜，透镜与波长选择组件12之间的间距，以及相邻透镜之间的间距能够依据波长选择组件12的形状进行更改。Specifically, the light source converging component 14 is one or more lenses, and the lenses are convex lenses. The distance between the lens and the wavelength selection component 12 and the distance between adjacent lenses can be changed according to the shape of the wavelength selection component 12 .
根据本发明提供的再一种实施例，如图3和4所示，一种激光照明系统10，本实施例与第三种实施例的区别在于波长选择组件12的具体结构。According to yet another embodiment provided by the present invention, as shown in FIGS. 3 and 4 , a laser illumination system 10 , the difference between this embodiment and the third embodiment lies in the specific structure of the wavelength selection component 12 .
在第三种实施例的基础上，本实施例中，波长选择组件12靠近波长转换组件13的一侧为抛物面或半圆球面，即波长选择组件12的左侧为抛物面或半圆球面。On the basis of the third embodiment, in this embodiment, the side of the wavelength selection component 12 close to the wavelength conversion component 13 is a paraboloid or a hemispherical surface, that is, the left side of the wavelength selection component 12 is a paraboloid or a hemispherical surface.
本实施例中，通过波长选择组件12的限定，波长选择组件12在接收到平行射入的触发激光时，反射后的触发激光能够汇聚于一点，进一步增加了反射后的触发激光的聚焦程度，方便了波长转换组件13位置的设置。In this embodiment, through the limitation of the wavelength selection component 12, when the wavelength selection component 12 receives the parallel incident trigger laser light, the reflected trigger laser light can converge at one point, further increasing the focusing degree of the reflected trigger laser light, The setting of the position of the wavelength conversion component 13 is facilitated.
具体地，如图3所示，当波长选择组件12靠近波长转换组件13的一侧为抛物面时，波长转换组件13位于波长选择组件12的焦点位置。Specifically, as shown in FIG. 3 , when the side of the wavelength selection component 12 close to the wavelength conversion component 13 is a paraboloid, the wavelength conversion component 13 is located at the focal point of the wavelength selection component 12 .
本实施例中，波长选择组件12为抛物面镜，将波长选择组件12左侧抛物面的最右端作为原点，因此，抛物面的方程可以为-x＝y2+z2，如图2所示的波长选择组件12为y＝0时抛物面的状态，波长选择组件12的方程-x＝z2，因此，抛物面的焦点为(-1/4,0,0)，抛物面的焦点能够落在波长转换组件13的右侧，因此，反射的触发激光均能够聚焦于波长转换组件13的一点。In this embodiment, the wavelength selection component 12 is a parabolic mirror, and the rightmost end of the paraboloid on the left side of the wavelength selection component 12 is taken as the origin, therefore, the equation of the paraboloid can be -x=y2 +z2 , the wavelength shown in Figure 2 The state of the paraboloid when the selection component 12 is y=0, the equation -x=z2 of the wavelength selection component 12, therefore, the focus of the paraboloid is (-1/4,0,0), and the focus of the paraboloid can fall on the wavelength conversion component 13, therefore, the reflected trigger laser light can be focused on one point of the wavelength conversion component 13.
结合第三种实施例所描述的旋转设置的波长转换组件13，波长转换组件13的右侧的轴心能够与抛物面的焦点重合。In combination with the rotationally arranged wavelength conversion component 13 described in the third embodiment, the right axis of the wavelength conversion component 13 can coincide with the focus of the paraboloid.
本实施例中，通过将波长转换组件13设置于波长选择组件12的焦点位置，反射的触发激光均能够聚焦于波长转换组件13的一点，减小了波长转换组件13的需求面积，继而增大了触发激光能够射入波长选择组件12的面积，增大了激光照明系统10的发光效率。In this embodiment, by setting the wavelength conversion component 13 at the focus position of the wavelength selection component 12, the reflected trigger laser light can be focused on one point of the wavelength conversion component 13, reducing the required area of the wavelength conversion component 13, and then increasing The area where the triggering laser can enter the wavelength selection component 12 is reduced, and the luminous efficiency of the laser illumination system 10 is increased.
具体地，当波长选择组件12靠近波长转换组件13的一侧为半圆球面时，沿平行于波长选择组件12的轴线方向，波长转换组件13与波长选择组件12之间的最大间距为波长选择组件12半径的一半。Specifically, when the side of the wavelength selection component 12 close to the wavelength conversion component 13 is a hemispherical surface, along the direction parallel to the axis of the wavelength selection component 12, the maximum distance between the wavelength conversion component 13 and the wavelength selection component 12 is the wavelength selection component Half of the radius of 12.
本实施例中，波长选择组件12为球面镜，将波长选择组件12的球形作为原点，因此，波长选择组件12的球面的方程为x2+y2+z2＝1(x≥0)，如图3所示的波长选择组件12为y＝0时抛物面的状态，波长选择组件12的方程为x2+z2＝1(x≥0)，球面镜在接收到平行射入的触发激光后，激光均能够聚焦于(1/2,0,0)，半圆球面的焦点能够落在波长转换组件13的右侧，因此，反射的触发激光均能够聚焦于波长转换组件13的一点。In this embodiment, the wavelength selection component 12 is a spherical mirror, and the spherical shape of the wavelength selection component 12 is taken as the origin. Therefore, the equation of the spherical surface of the wavelength selection component 12 is x2 +y2 +z2 =1 (x≥0), such as The wavelength selection component 12 shown in Fig. 3 is the state of a parabola when y=0, the equation of the wavelength selection component 12 is x2 +z2 =1 (x≥0), after the spherical mirror receives the trigger laser light incident in parallel, The laser light can be focused on (1/2,0,0), and the focus of the hemisphere can fall on the right side of the wavelength conversion component 13 . Therefore, the reflected trigger laser can be focused on a point of the wavelength conversion component 13 .
结合第三种实施例所描述的旋转设置的波长转换组件13，波长转换组件13的右侧的轴心能够与半圆球面的焦点重合。In combination with the rotationally arranged wavelength conversion component 13 described in the third embodiment, the axis of the right side of the wavelength conversion component 13 can coincide with the focal point of the semicircular surface.
本实施例中，通过将波长转换组件13设置于波长选择组件12的焦点位置，反射的触发激光均能够聚焦于波长转换组件13的一点，减小了波长转换组件13的需求面积，继而增大了触发激光能够射入波长选择组件12的面积，增大了激光照明系统10的发光效率。In this embodiment, by setting the wavelength conversion component 13 at the focus position of the wavelength selection component 12, the reflected trigger laser light can be focused on one point of the wavelength conversion component 13, reducing the required area of the wavelength conversion component 13, and then increasing The area where the triggering laser can enter the wavelength selection component 12 is reduced, and the luminous efficiency of the laser illumination system 10 is increased.
具体地，本实施例中，半圆球面的曲率半径R满足15mm≤R≤20mm，因此，波长选择组件12与波长转换组件13之间的间距也为R，且波长选择组件12与第三种实施例中所描述的光源汇聚组件14之间的间距也为R，且光源汇聚组件14的半径大于波长选择组件12的半径；当前状态下，本激光照明系统能够提供5000lm的照射光。Specifically, in this embodiment, the radius of curvature R of the semicircular surface satisfies 15mm≤R≤20mm, therefore, the distance between the wavelength selection component 12 and the wavelength conversion component 13 is also R, and the wavelength selection component 12 and the third implementation The distance between the light source converging components 14 described in the example is also R, and the radius of the light source converging component 14 is larger than the radius of the wavelength selection component 12; in the current state, the laser lighting system can provide 5000lm of irradiation light.
根据本发明提供的一种实施例，如图5所示，一种汽车激光照明装置，包括上述任意一种实施例所描述的激光照明系统10。According to an embodiment of the present invention, as shown in FIG. 5 , an automotive laser lighting device includes the laser lighting system 10 described in any one of the above embodiments.
本实施例中，汽车激光照明装置能够通过激光照明系统10、照明透镜组20、DMD30(数字微镜器件)以及投影透镜组40共同形成。In this embodiment, the automobile laser lighting device can be jointly formed by the laser lighting system 10 , the lighting lens group 20 , the DMD 30 (digital micromirror device) and the projection lens group 40 .
应当说明的是，上述实施例均可根据需要自由组合。以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。It should be noted that the above embodiments can be freely combined as required. The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
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| CN2019107139893 | 2019-08-02 | ||
| CN201910713989 | 2019-08-02 |
| Publication Number | Publication Date |
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| CN110594690Atrue CN110594690A (en) | 2019-12-20 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910775592.7APendingCN110594690A (en) | 2019-08-02 | 2019-08-21 | Laser lighting system and automobile laser lighting device thereof |
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| CN (1) | CN110594690A (en) |
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