技术领域technical field
本实用新型关于一种透镜模块及投影设备，尤其关于一种便于调整光束聚焦位置的透镜模块及包括透镜模块的投影设备。The utility model relates to a lens module and a projection device, in particular to a lens module which is convenient for adjusting the focus position of a light beam and a projection device including the lens module.
背景技术Background technique
在投影设备中，用于将光源产生的光线聚焦至色轮的光学透镜与色轮间的距离为非常重要的参数，其关键地影响投影品质。现有技术利用螺丝搭配弹簧锁固透镜模块中的光学透镜，锁固的松紧可不同程度地推进光学透镜，以调整光学透镜与色轮间的距离(即调整透过光学透镜的光束的聚焦位置)。然而螺丝在锁固的过程中的旋转、挤压会造成光学透镜设置角度的偏差，导致投影品质下降。此外，现有技术的透镜模块中，光学透镜装设于环形框架上，环形框架装设于承载架上，环形框架完全贴合承载架。由于公差管控不易，且承载架与环形框架之间的接触面不平整，使得调整穿过光学透镜的光束的聚焦位置较为困难。In a projection device, the distance between the optical lens for focusing the light generated by the light source to the color wheel and the color wheel is a very important parameter, which critically affects the projection quality. The prior art uses screws and springs to lock the optical lens in the lens module. The tightness of the locking can advance the optical lens to different degrees to adjust the distance between the optical lens and the color wheel (that is, to adjust the focus position of the light beam passing through the optical lens. ). However, the rotation and extrusion of the screw during the locking process will cause the deviation of the setting angle of the optical lens, resulting in a decrease in projection quality. In addition, in the lens module of the prior art, the optical lens is installed on the ring frame, the ring frame is installed on the carrier, and the ring frame is completely attached to the carrier. Due to the difficulty in tolerance control and the uneven contact surface between the carrier and the ring frame, it is difficult to adjust the focus position of the light beam passing through the optical lens.
本「背景技术」段落只是用来帮助了解本实用新型内容，因此在「背景技术」中所公开的内容可能包含一些没有构成本领域技术人员所知道的已知技术。此外，在「背景技术」中所公开的内容并不代表所述内容或者本实用新型一个或多个实施例所要解决的问题，也不代表在本实用新型申请前已被本领域技术人员所知晓或认知。This "Background Technology" paragraph is only used to help understand the content of the present utility model, so the content disclosed in the "Background Technology" may contain some known technologies that do not constitute the knowledge of those skilled in the art. In addition, the content disclosed in the "Background Technology" does not represent the content or the problems to be solved by one or more embodiments of the present utility model, nor does it mean that it has been known to those skilled in the art before the application of the utility model or cognition.
实用新型内容Utility model content
本实用新型提供一种透镜模块，可便于调整光束的聚焦位置，避免投影设备的投影品质下降。The utility model provides a lens module, which can facilitate the adjustment of the focus position of light beams and avoid the degradation of projection quality of projection equipment.
本实用新型另外提供一种投影设备，其透镜模块可便于调整光束的聚焦位置，避免投影品质下降。The utility model additionally provides a projection device, the lens module of which can facilitate the adjustment of the focus position of the light beam and avoid the degradation of projection quality.
本实用新型的其他目的和优点可以从本实用新型所公开的技术特征中得到进一步的了解。Other purposes and advantages of the utility model can be further understood from the technical characteristics disclosed in the utility model.
为达到上述的一或部分或全部目的或是其他目的，本实用新型所提供的透镜模块包括承载座、框架以及光学透镜。承载座具有内表面，内表面具有接触面，且内表面上形成导引槽。框架接触接触面且具有导引杆，导引杆配置于导引槽中。光学透镜配置于框架上且具有光轴。导引杆在导引槽中移动时，框架以光轴为中心于承载座上旋转，且框架及光学透镜于承载座上沿光轴的方向移动。In order to achieve one or part or all of the above objectives or other objectives, the lens module provided by the present invention includes a bearing seat, a frame and an optical lens. The bearing seat has an inner surface, the inner surface has a contact surface, and a guide groove is formed on the inner surface. The frame is in contact with the contact surface and has a guide rod, and the guide rod is arranged in the guide groove. The optical lens is arranged on the frame and has an optical axis. When the guide rod moves in the guide groove, the frame rotates on the bearing base with the optical axis as the center, and the frame and the optical lens move along the direction of the optical axis on the bearing base.
为达到上述的一或部分或全部目的或是其他目的，本实用新型所提供的投影设备包括照明系统、光阀以及投影镜头，照明系统可提供照明光束，光阀配置于照明光束的传递路径上，以将照明光束转换成影像光束，投影镜头配置于影像光束的传递路径上。照明系统包括光源装置、波长转换装置及上述的透镜模块。光源装置可提供激发光束。透镜模块配置于激发光束的传递路径上。波长转换装置配置于激发光束的传递路径上且可将通过光学透镜的激发光束转换成转换光束，照明光束包括激发光束及转换光束。In order to achieve one or part or all of the above purposes or other purposes, the projection equipment provided by the utility model includes an illumination system, a light valve and a projection lens. The illumination system can provide an illumination beam, and the light valve is arranged on the transmission path of the illumination beam. , to convert the illumination beam into an image beam, and the projection lens is arranged on the transmission path of the image beam. The lighting system includes a light source device, a wavelength conversion device and the aforementioned lens module. The light source unit can provide an excitation light beam. The lens module is arranged on the transmission path of the excitation light beam. The wavelength conversion device is arranged on the transmission path of the excitation beam and can convert the excitation beam passing through the optical lens into a conversion beam. The illumination beam includes the excitation beam and the conversion beam.
在本实用新型的透镜模块及投影设备中，框架的导引杆可在承载座的内表面上的导引槽中移动，使得框架(光学透镜配置于框架上)可以光学透镜的光轴为中心于承载座上旋转，并同时使框架及光学透镜于承载座上一同沿光轴的方向移动，从而可将穿过光学透镜的光束的聚焦位置调整到适当位置，具有改善投影设备的投影品质的优点。In the lens module and the projection device of the present invention, the guide rod of the frame can move in the guide groove on the inner surface of the bearing seat, so that the frame (the optical lens is arranged on the frame) can be centered on the optical axis of the optical lens. Rotate on the bearing seat, and at the same time make the frame and optical lens move along the direction of the optical axis on the bearing seat, so that the focus position of the beam passing through the optical lens can be adjusted to an appropriate position, which has the advantage of improving the projection quality of the projection device .
为让本实用新型的上述和其他目的、特征和优点能更明显易懂，下文特举优选实施例，并配合附图，详细说明如下。In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below, together with the accompanying drawings, and are described in detail as follows.
附图说明Description of drawings
图1为本实用新型一实施例的透镜模块的外观示意图；FIG. 1 is a schematic diagram of the appearance of a lens module according to an embodiment of the present invention;
图2为图1中的透镜模块的另一角度的外观示意图；FIG. 2 is a schematic view of the appearance of the lens module in FIG. 1 from another angle;
图3为图1中的透镜模块的爆炸示意图；FIG. 3 is an exploded schematic view of the lens module in FIG. 1;
图4为图1中的透镜模块的前视剖面示意图；FIG. 4 is a schematic front view sectional view of the lens module in FIG. 1;
图5为图1中的透镜模块的下视剖面示意图；FIG. 5 is a schematic bottom view of the lens module in FIG. 1;
图6为本实用新型另一实施例的透镜模块的外观示意图；6 is a schematic diagram of the appearance of a lens module according to another embodiment of the present invention;
图7为图6中的透镜模块的爆炸示意图；以及FIG. 7 is an exploded schematic diagram of the lens module in FIG. 6; and
图8为本实用新型一实施例的投影设备的示意性方块图。FIG. 8 is a schematic block diagram of a projection device according to an embodiment of the present invention.
具体实施方式Detailed ways
有关本实用新型的前述及其他技术内容、特点与功效，在以下配合参考附图的一优选实施例的详细说明中，将可清楚的呈现。以下实施例中所提到的方向用语，例如：上、下、左、右、前或后等，仅是参考附图的方向。因此，使用的方向用语是用来说明并非用来限制本实用新型。The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only referring to the directions of the drawings. Therefore, the directional terms used are used to illustrate but not to limit the present invention.
图1为本实用新型一实施例的透镜模块的外观示意图。图2为图1中的透镜模块的另一角度的外观示意图。图3为图1中的透镜模块的爆炸示意图。图4为图1中的透镜模块的前视剖面示意图。图5为图1中的透镜模块的下视剖面示意图。请参考图1至5，本实施例的透镜模块100包括承载座110、框架120以及光学透镜130。承载座110具有内表面111，内表面111具有接触面112，且内表面111上形成导引槽113。框架120与接触面112接触且具有导引杆121，导引杆121配置于导引槽113中。光学透镜130配置于框架120上且具有光轴131。内表面111环绕光轴131延伸。当导引杆121在导引槽113中移动时，框架120以光轴131为中心于承载座110上旋转，且框架120及光学透镜130于承载座110上沿光轴131的方向移动，使得穿过光学透镜130的光束的聚焦位置改变。在本实施例中，光学透镜130可例如是聚焦透镜，但本实用新型不局限于此，且光学透镜130的数量可为单一个或多个，例如两个光学透镜130a、130b。此外，框架120可呈环形，接触面112的形状与框架120的外周面122的形状相匹配。在本实施例中，接触面112呈弧形且框架120的外周面122呈弧形，但本实用新型不局限于此。FIG. 1 is a schematic diagram of the appearance of a lens module according to an embodiment of the present invention. FIG. 2 is a schematic diagram of the appearance of the lens module in FIG. 1 from another angle. FIG. 3 is an exploded schematic diagram of the lens module in FIG. 1 . FIG. 4 is a schematic front cross-sectional view of the lens module in FIG. 1 . FIG. 5 is a schematic bottom sectional view of the lens module in FIG. 1 . Please refer to FIGS. 1 to 5 , the lens module 100 of this embodiment includes a carrier 110 , a frame 120 and an optical lens 130 . The bearing seat 110 has an inner surface 111 , the inner surface 111 has a contact surface 112 , and a guiding groove 113 is formed on the inner surface 111 . The frame 120 is in contact with the contact surface 112 and has a guide rod 121 disposed in the guide groove 113 . The optical lens 130 is disposed on the frame 120 and has an optical axis 131 . The inner surface 111 extends around the optical axis 131 . When the guide rod 121 moves in the guide groove 113, the frame 120 rotates on the bearing seat 110 with the optical axis 131 as the center, and the frame 120 and the optical lens 130 move along the direction of the optical axis 131 on the bearing seat 110, so that the The focus position of the light beam passing through the optical lens 130 is changed. In this embodiment, the optical lens 130 may be, for example, a focusing lens, but the present invention is not limited thereto, and the number of the optical lens 130 may be single or multiple, such as two optical lenses 130a, 130b. In addition, the frame 120 may be annular, and the shape of the contact surface 112 matches the shape of the outer peripheral surface 122 of the frame 120 . In this embodiment, the contact surface 112 is arc-shaped and the outer peripheral surface 122 of the frame 120 is arc-shaped, but the present invention is not limited thereto.
在一实施例中，透镜模块100还可包括弹片140，弹片140配置于承载座110上，且用以接触框架120。弹片140借由本身的弹力可使框架120紧抵于接触面112上，以使框架120稳固地装设于接触面112上。在本实施例中，弹片140具有自由端141及固定端142，自由端141可抵靠在框架120上，具体而言，弹片140的自由端141抵靠在框架120的外周面122上。固定端142可固定于承载座110上。然而，在其他实施例中，自由端141可抵靠于承载座110的内表面111上，固定端142可固定于框架120上。在图3所示的实施例中，弹片140的固定端142可以如螺丝的固定件150锁固于承载座110上。此外，弹片140的数量可为一个或多个，接触面112的数量可为一个或多个。在本实施例中，弹片140的数量与接触面112的数量相同，例如弹片140与接触面112都是两个，且两个弹片140分别用以接触框架120的相对两侧。但本实用新型不局限于此。在其他实施例中，弹片140的数量与接触面112的数量也可以不同，例如弹片140为一个，接触面112为两个。另外，在本实施例中，导引槽113配置于两个接触面112之间，但本实用新型不局限于此。In an embodiment, the lens module 100 may further include an elastic piece 140 disposed on the bearing seat 110 and configured to contact the frame 120 . The elastic piece 140 can make the frame 120 close to the contact surface 112 by its own elastic force, so that the frame 120 can be firmly installed on the contact surface 112 . In this embodiment, the elastic piece 140 has a free end 141 and a fixed end 142 , the free end 141 can abut against the frame 120 , specifically, the free end 141 of the elastic piece 140 abuts against the outer peripheral surface 122 of the frame 120 . The fixed end 142 can be fixed on the bearing base 110 . However, in other embodiments, the free end 141 can lean against the inner surface 111 of the bearing seat 110 , and the fixed end 142 can be fixed on the frame 120 . In the embodiment shown in FIG. 3 , the fixed end 142 of the elastic piece 140 can be locked on the bearing seat 110 by a fixing member 150 such as a screw. In addition, the number of elastic sheets 140 may be one or more, and the number of contact surfaces 112 may be one or more. In this embodiment, the number of elastic pieces 140 is the same as the number of contact surfaces 112 , for example, there are two elastic pieces 140 and two contact surfaces 112 , and the two elastic pieces 140 are respectively used to contact opposite sides of the frame 120 . But the utility model is not limited thereto. In other embodiments, the number of elastic pieces 140 and the number of contact surfaces 112 may also be different, for example, there is one elastic piece 140 and there are two contact surfaces 112 . In addition, in this embodiment, the guide groove 113 is disposed between the two contact surfaces 112 , but the present invention is not limited thereto.
在一实施例中，承载座110还可具有第一侧面114及第二侧面115，第一侧面114及第二侧面115沿光轴131排列。内表面111连接于第一侧面114及第二侧面115之间，且导引槽113于第一侧面114及第二侧面115之间斜向延伸，换句话说，导引槽113的延伸方向与光轴131不垂直。在本实施例中，导引槽113具有第一端部1131、第二端部1132及连接段1133，连接段1133斜向连接第一端部1131及第二端部1132，第一端部1131比第二端部1132更接近第一侧面114，且第二端部1132比第一端部1131更接近第二侧面115。当导引杆121于导引槽113中由第一端部1131经由连接段1133朝第二端部1132移动时，框架120以光轴131为中心于承载座110上旋转，且框架120及光学透镜130沿光轴131于承载座110上由第一侧面114朝第二侧面115移动。反之，当导引杆121于导引槽113中由第二端部1132经由连接段1133朝第一端部1131移动时，框架120以光轴131为中心于承载座110上旋转，且框架120及光学透镜130沿光轴131于承载座110上由第二侧面115朝第一侧面114移动。此外，在本实施例中，第一端部1131于光轴131上的投射点与第二端部1132于光轴131上的投射点之间的距离D例如可为0.6毫米(mm)至0.7mm，但本实用新型不局限于此。In an embodiment, the bearing base 110 can further have a first side 114 and a second side 115 , and the first side 114 and the second side 115 are arranged along the optical axis 131 . The inner surface 111 is connected between the first side 114 and the second side 115, and the guiding groove 113 extends obliquely between the first side 114 and the second side 115. In other words, the extending direction of the guiding groove 113 is in line with Optical axis 131 is not vertical. In this embodiment, the guide groove 113 has a first end 1131, a second end 1132 and a connecting section 1133. The connecting section 1133 obliquely connects the first end 1131 and the second end 1132. The first end 1131 It is closer to the first side 114 than the second end 1132 , and the second end 1132 is closer to the second side 115 than the first end 1131 . When the guide rod 121 moves from the first end 1131 to the second end 1132 through the connecting section 1133 in the guide groove 113, the frame 120 rotates on the bearing seat 110 with the optical axis 131 as the center, and the frame 120 and the optical The lens 130 moves along the optical axis 131 on the supporting base 110 from the first side 114 to the second side 115 . Conversely, when the guide rod 121 moves from the second end 1132 to the first end 1131 through the connecting section 1133 in the guide groove 113, the frame 120 rotates on the bearing seat 110 with the optical axis 131 as the center, and the frame 120 And the optical lens 130 moves along the optical axis 131 on the bearing base 110 from the second side 115 to the first side 114 . In addition, in this embodiment, the distance D between the projection point of the first end portion 1131 on the optical axis 131 and the projection point of the second end portion 1132 on the optical axis 131 may be, for example, 0.6 mm to 0.7 mm. mm, but the utility model is not limited thereto.
在一实施例中，框架120还可具有调整杆123。在本实施例中，导引杆121可朝远离光轴131的第一方向延伸，调整杆123可朝远离光轴131的第二方向延伸。第一方向与第二方向不同。调整杆123被推动时，导引杆121在导引槽113的第一端部1131及第二端部1132之间移动，框架120以光轴131为中心于承载座110上旋转，且框架120及光学透镜130于承载座110上沿光轴131的方向移动。换言之，使用者可借由推动调整杆123，以调整穿过光学透镜130的光束的聚焦位置。调整杆123相较于已知螺丝，更易于施加力矩以转动框架120，更易于调整。此外，在本实施例中，承载座110还可具有外表面116，外表面116位于内表面111远离光轴131的一侧，所述承载座还具有调整开口117，调整开口117连接内表面111及外表面116，且调整杆123可配置于调整开口117中。导引槽113可自内表面111向外表面116凹陷。在一实施例中，导引槽113可为非穿孔，或贯穿内表面111及外表面116的穿孔。详细而言，在本实施例中，导引槽113可为形成于内表面111上且贯穿外表面116的穿孔。然而，在其他实施例中，导引槽113可为形成于内表面111上而未贯穿外表面116的非穿孔。当导引槽113为非穿孔时，借由调整杆123的设置，可方便调整导引杆121在导引槽113中的位置，使框架120及光学透镜130于承载座110上沿光轴131的方向移动，以调整穿过光学透镜130的光束的聚焦位置。当导引槽113为穿孔时，可以依照需求直接调整导引杆121在导引槽113中的位置，或者亦可经由调整杆123来调整导引杆121在导引槽113中的位置，以调整穿过光学透镜130的光束的聚焦位置。因此，借由调整杆123的设置或/及导引槽113为穿孔的设置，皆可方便地调整穿过光学透镜130的光束的聚焦位置。In an embodiment, the frame 120 may further have an adjustment rod 123 . In this embodiment, the guiding rod 121 can extend toward a first direction away from the optical axis 131 , and the adjusting rod 123 can extend toward a second direction away from the optical axis 131 . The first direction is different from the second direction. When the adjustment rod 123 is pushed, the guide rod 121 moves between the first end 1131 and the second end 1132 of the guide groove 113, the frame 120 rotates on the bearing seat 110 with the optical axis 131 as the center, and the frame 120 And the optical lens 130 moves along the direction of the optical axis 131 on the supporting seat 110 . In other words, the user can adjust the focus position of the light beam passing through the optical lens 130 by pushing the adjusting lever 123 . The adjustment rod 123 is easier to apply torque to rotate the frame 120 than known screws, and is easier to adjust. In addition, in this embodiment, the bearing base 110 can also have an outer surface 116, the outer surface 116 is located on the side of the inner surface 111 away from the optical axis 131, the bearing base also has an adjustment opening 117, and the adjustment opening 117 is connected to the inner surface 111 and the outer surface 116 , and the adjustment rod 123 can be disposed in the adjustment opening 117 . The guiding groove 113 can be recessed from the inner surface 111 to the outer surface 116 . In one embodiment, the guiding groove 113 can be non-perforated, or perforated through the inner surface 111 and the outer surface 116 . In detail, in this embodiment, the guiding groove 113 can be a perforation formed on the inner surface 111 and passing through the outer surface 116 . However, in other embodiments, the guiding groove 113 may be a non-perforated hole formed on the inner surface 111 without penetrating through the outer surface 116 . When the guide groove 113 is non-perforated, the position of the guide rod 121 in the guide groove 113 can be adjusted conveniently by the setting of the adjustment rod 123, so that the frame 120 and the optical lens 130 are placed on the bearing seat 110 along the optical axis 131 to adjust the focus position of the light beam passing through the optical lens 130. When the guide groove 113 is perforated, the position of the guide rod 121 in the guide groove 113 can be directly adjusted according to requirements, or the position of the guide rod 121 in the guide groove 113 can also be adjusted through the adjustment rod 123, so that The focus position of the beam passing through the optical lens 130 is adjusted. Therefore, the focusing position of the light beam passing through the optical lens 130 can be conveniently adjusted by setting the adjusting rod 123 or/and setting the guide groove 113 as a perforated hole.
在本实施例中，调整杆123经由调整开口117延伸至外表面116之外，也就是说，调整杆123突出于外表面116，借此可方便的借由调整杆123调整光学透镜的位置，以调整穿过光学透镜的光束的聚焦位置。在其他实施例中，在导引槽113为穿孔且透镜模块100不具有调整杆123的情况下，穿过光学透镜130的光束的聚焦位置可借由直接调整导引杆121在导引槽113中的位置而被调整，换言之，导引杆121可作为调整杆123使用。In this embodiment, the adjustment rod 123 extends outside the outer surface 116 through the adjustment opening 117, that is, the adjustment rod 123 protrudes from the outer surface 116, so that the position of the optical lens can be adjusted conveniently through the adjustment rod 123, To adjust the focus position of the light beam passing through the optical lens. In other embodiments, when the guide groove 113 is perforated and the lens module 100 does not have the adjusting rod 123, the focusing position of the light beam passing through the optical lens 130 can be directly adjusted by the guide rod 121 in the guide groove 113. In other words, the guide rod 121 can be used as the adjustment rod 123 .
本实施例的透镜模块100中，由于承载座110的内表面111上形成有导引槽113，框架120具有配置于导引槽113中的导引杆121。导引槽113在承载座110的第一侧面114与第二侧面115之间斜向延伸。当框架120配置成接触内表面111的接触面112时，借由调整导引杆121在导引槽113中的位置，可以使框架120(光学透镜130配置于框架120上)以光学透镜130的光轴131为中心于承载座110上旋转，并同时使框架120及光学透镜130于承载座110上一同沿光轴131的方向移动，例如，框架120可被向前或向后推动，使得固定于框架120的光学透镜130与波长转换装置的距离改变，从而达到调整穿过光学透镜130的光束的聚焦位置的效果。由此可见，借由导引槽113及导引杆121的配合，可将穿过光学透镜130的光束的聚焦位置适当地调整到波长转换装置(例如色轮)上，进而避免投影设备的投影品质下降。In the lens module 100 of this embodiment, since the guide groove 113 is formed on the inner surface 111 of the bearing seat 110 , the frame 120 has a guide rod 121 disposed in the guide groove 113 . The guiding groove 113 extends obliquely between the first side 114 and the second side 115 of the bearing seat 110 . When the frame 120 is configured to contact the contact surface 112 of the inner surface 111, by adjusting the position of the guide rod 121 in the guide groove 113, the frame 120 (the optical lens 130 is configured on the frame 120) can be configured with the optical lens 130. The optical axis 131 is the center and rotates on the bearing seat 110, and at the same time the frame 120 and the optical lens 130 are moved along the direction of the optical axis 131 on the bearing seat 110, for example, the frame 120 can be pushed forward or backward, so that the fixed The distance between the optical lens 130 of the frame 120 and the wavelength conversion device is changed, so as to achieve the effect of adjusting the focus position of the light beam passing through the optical lens 130 . It can be seen that, through the cooperation of the guide groove 113 and the guide rod 121, the focus position of the light beam passing through the optical lens 130 can be properly adjusted to the wavelength conversion device (such as a color wheel), thereby avoiding the projection of the projection device. Quality drops.
本实施例的透镜模块100中，光学透镜130经由框架120配置于承载座110的接触面112上后，框架120是借由弹片140的弹力抵靠于内表面111的接触面112上。框架120不以螺丝的锁固力锁固在承载座110上。在本实用新型的实施例中，框架的固定不使用螺丝，避免了螺丝锁固过程中因旋转、挤压造成光学透镜130及框架120相对承载座110位移的问题，亦可有效降低成本。使用者可依据需求选择弹性系数较小的弹片140，或依据需求调整用以锁固弹片140的固定件150的松紧，以改变弹片140对框架120施加的弹力，进而改变在调整光学透镜130过程中产生于框架120与接触面112之间的摩擦力，亦可避免透镜模块100过于松脱或紧迫，使得在调整光学透镜130过程中，框架120可保持在接触面112上且可相对接触面112旋转及移动。框架120与内表面111之间的接触/贴合面积的大小，即接触面112的面积，需足以支撑弹片140的固定效果，也就是说，接触面112的面积可以适当缩减，借此可有效改善组装过程中晃动的问题。In the lens module 100 of this embodiment, after the optical lens 130 is disposed on the contact surface 112 of the carrier 110 via the frame 120 , the frame 120 leans against the contact surface 112 of the inner surface 111 by the elastic force of the elastic piece 140 . The frame 120 is not locked on the bearing base 110 by the locking force of the screws. In the embodiment of the present invention, no screws are used to fix the frame, which avoids the problem of displacement of the optical lens 130 and the frame 120 relative to the bearing seat 110 due to rotation and extrusion during the screw locking process, and can also effectively reduce costs. The user can choose the elastic piece 140 with a smaller elastic coefficient according to the demand, or adjust the tightness of the fixing part 150 used to lock the elastic piece 140 according to the demand, so as to change the elastic force exerted by the elastic piece 140 on the frame 120, and then change the process of adjusting the optical lens 130. The friction force generated between the frame 120 and the contact surface 112 can also prevent the lens module 100 from being too loose or tight, so that during the adjustment of the optical lens 130, the frame 120 can remain on the contact surface 112 and can be opposed to the contact surface. 112 rotations and movements. The size of the contact/bonding area between the frame 120 and the inner surface 111, that is, the area of the contact surface 112, needs to be sufficient to support the fixing effect of the elastic piece 140, that is to say, the area of the contact surface 112 can be appropriately reduced, thereby effectively Improve the shaking problem during assembly.
图6为本实用新型另一实施例的透镜模块的外观示意图。图7为图6中的透镜模块的爆炸示意图。请参考图6及7，本实施例的透镜模块100中，承载座110还包括底座110a及顶盖110b，顶盖110b配置于底座110a上，顶盖110b的内表面及底座110a的内表面连接形成内表面111，且顶盖110b的外表面及底座110a的外表面连接形成外表面116。接触面112可为底座110a的内表面的一部分，且导引槽113形成于底座110a上。框架120与光学透镜130配置于底座110a及顶盖110b之间。顶盖110b以固定件150锁固于底座110a上，且弹片140的固定端142可连接至顶盖110b。进一步来说，在本实施例中，弹片140与顶盖110b为一体成型，但本实用新型不局限于此。在其他实施例中，弹片140与顶盖110b也可以是相互独立的构件，弹片140的固定端142可以固定件150或另一固定件锁固至底座110a或底座110a。另外，在本实施例中，导引槽113可配置于底座110a的底部。当导引槽113为穿孔时，导引槽113可贯穿底座110a的底部，调整开口117可形成于顶盖110b上，但本实用新型不局限于此。在其他实施例中，导引槽113也可以配置于顶盖110b或底座110a的侧部，调整开口117也可以配置于底座110a上，或者可配置于顶盖110b或底座110a的侧部上。FIG. 6 is a schematic diagram of the appearance of a lens module according to another embodiment of the present invention. FIG. 7 is an exploded schematic diagram of the lens module in FIG. 6 . 6 and 7, in the lens module 100 of the present embodiment, the carrier 110 also includes a base 110a and a top cover 110b, the top cover 110b is disposed on the base 110a, and the inner surface of the top cover 110b is connected to the inner surface of the base 110a The inner surface 111 is formed, and the outer surface of the top cover 110 b and the outer surface of the base 110 a are connected to form an outer surface 116 . The contact surface 112 can be a part of the inner surface of the base 110a, and the guide groove 113 is formed on the base 110a. The frame 120 and the optical lens 130 are disposed between the base 110a and the top cover 110b. The top cover 110b is locked on the base 110a by the fixing member 150, and the fixed end 142 of the elastic piece 140 can be connected to the top cover 110b. Further, in this embodiment, the elastic piece 140 and the top cover 110b are integrally formed, but the present invention is not limited thereto. In other embodiments, the elastic piece 140 and the top cover 110b may also be independent components, and the fixed end 142 of the elastic piece 140 may be locked to the base 110a or the base 110a by the fixing member 150 or another fixing member. In addition, in this embodiment, the guiding groove 113 may be disposed at the bottom of the base 110a. When the guide groove 113 is perforated, the guide groove 113 can penetrate the bottom of the base 110a, and the adjustment opening 117 can be formed on the top cover 110b, but the present invention is not limited thereto. In other embodiments, the guide groove 113 can also be configured on the side of the top cover 110b or the base 110a, and the adjustment opening 117 can also be configured on the base 110a, or can be configured on the side of the top cover 110b or the base 110a.
图8为本实用新型一实施例的投影设备的示意性方块图。请参考图1及8，本实施例的投影设备(例如投影机)200，包括照明系统210、光阀220以及投影镜头230，照明系统210可提供照明光束L1，光阀220配置于照明光束L1的传递路径上，以将照明光束L1转换成影像光束L2，投影镜头230配置于影像光束L2的传递路径上，以将影像光束L2投射至屏幕300，进而在屏幕300上形成影像画面。光阀220可以是穿透式光阀或是反射式光阀，其中穿透式光阀可以为穿透式液晶面板，而反射式光阀220可以为数字微镜元件(digital micro-mirrordevice,DMD)或硅基液晶面板(liquid crystal on silicon panel,LCOS panel)，但本实用新型不局限于此。投影镜头230例如包括具有屈光度的一个或多个光学透镜的组合，例如包括双凹透镜、双凸透镜、凹凸透镜、凸凹透镜、平凸透镜以及平凹透镜等非平面透镜的各种组合。在一实施例中，投影镜头230也可以包括平面光学透镜。FIG. 8 is a schematic block diagram of a projection device according to an embodiment of the present invention. Please refer to FIGS. 1 and 8. The projection device (such as a projector) 200 of this embodiment includes an illumination system 210, a light valve 220, and a projection lens 230. The illumination system 210 can provide an illumination beam L1, and the light valve 220 is configured on the illumination beam L1. The projection lens 230 is arranged on the transmission path of the image beam L2 to project the image beam L2 to the screen 300 to form an image frame on the screen 300 . The light valve 220 can be a transmissive light valve or a reflective light valve, wherein the transmissive light valve can be a transmissive liquid crystal panel, and the reflective light valve 220 can be a digital micro-mirror device (digital micro-mirrordevice, DMD ) or a liquid crystal on silicon panel (liquid crystal on silicon panel, LCOS panel), but the utility model is not limited thereto. The projection lens 230 includes, for example, a combination of one or more optical lenses with diopters, such as various combinations of non-planar lenses such as biconcave lenses, biconvex lenses, concave-convex lenses, convex-concave lenses, plano-convex lenses, and plano-concave lenses. In an embodiment, the projection lens 230 may also include a planar optical lens.
在一实施例中，照明系统210包括光源装置211、透镜模块100及波长转换装置212。光源装置211可提供激发光束Le。透镜模块100及波长转换装置212配置于激发光束Le的传递路径上。波长转换装置212用以将通过透镜模块100的光学透镜130的激发光束Le转换成转换光束Lt，且依时序让激发光束Le通过。照明光束L1包括激发光束Le及转换光束Lt。光源装置211例如是包括发光二极管或激光二极管(Laser Diode,LD)的二极管模块或者是由多枚二极管模块所组成的矩阵，但本实用新型不局限于此。波长转换装置212例如是波长转换轮，但本实用新型不局限于此。此外，照明系统210还可包括其他光学元件，例如：合光元件、滤色轮(Filter wheel)及光均匀化元件等，以使照明光束L1传递至光阀(Light Valve)220。虽然图8是以图1的透镜模块100为例，但透镜模块100可替换成上述任一实施例的透镜模块100。In one embodiment, the illumination system 210 includes a light source device 211 , a lens module 100 and a wavelength conversion device 212 . The light source device 211 can provide an excitation light beam Le. The lens module 100 and the wavelength conversion device 212 are arranged on the transmission path of the excitation light beam Le. The wavelength conversion device 212 is used to convert the excitation beam Le passing through the optical lens 130 of the lens module 100 into a conversion beam Lt, and allow the excitation beam Le to pass through in time sequence. The illumination beam L1 includes an excitation beam Le and a conversion beam Lt. The light source device 211 is, for example, a diode module including a light emitting diode or a laser diode (Laser Diode, LD), or a matrix composed of a plurality of diode modules, but the present invention is not limited thereto. The wavelength conversion device 212 is, for example, a wavelength conversion wheel, but the present invention is not limited thereto. In addition, the illumination system 210 may further include other optical elements, such as a light combining element, a filter wheel (Filter wheel), and a light homogenizing element, so as to transmit the illumination light beam L1 to the light valve (Light Valve) 220 . Although FIG. 8 is an example of the lens module 100 in FIG. 1 , the lens module 100 can be replaced with the lens module 100 of any of the above-mentioned embodiments.
综上所述，本实用新型的透镜模块及投影设备中，借由调整框架的导引杆在成于承载座的内表面上的导引槽中的位置，可以使框架以光学透镜的光轴为中心于承载座上旋转，并同时使框架及光学透镜于承载座上一同沿光轴的方向移动，从而将穿过光学透镜的光束的聚焦位置适当地调整到波长转换装置上，具有改善投影设备的投影品质的优点。To sum up, in the lens module and projection device of the present invention, by adjusting the position of the guide rod of the frame in the guide groove formed on the inner surface of the bearing seat, the frame can be aligned with the optical axis of the optical lens. Rotate on the bearing base as the center, and at the same time make the frame and the optical lens move along the direction of the optical axis on the bearing base, so as to properly adjust the focus position of the beam passing through the optical lens to the wavelength conversion device, which can improve projection The advantages of the projection quality of the device.
以上所述，仅为本实用新型的优选实施例而已，不能以此限定本实用新型实施的范围，即凡是依照本实用新型权利要求书及实用新型说明书内容所作的简单的等效变化与修饰，皆仍属本实用新型专利涵盖的范围内。另外，本实用新型的任一实施例或权利要求不须达成本实用新型所公开的全部目的或优点或特点。此外，说明书摘要和实用新型名称仅是用来辅助专利文件检索之用，并非用来限制本实用新型的权利范围。此外，本说明书或权利要求书中提及的「第一」、「第二」等用语仅用以命名元件(element)的名称或区别不同实施例或范围，而并非用来限制元件数量上的上限或下限。The above is only a preferred embodiment of the utility model, and cannot limit the scope of implementation of the utility model, that is, all simple equivalent changes and modifications made according to the claims of the utility model and the content of the utility model description, All still belong to the scope that the utility model patent covers. In addition, any embodiment or claim of the present utility model does not necessarily achieve all the objects or advantages or features disclosed in the utility model. In addition, the abstract of the description and the name of the utility model are only used to assist in the retrieval of patent documents, and are not used to limit the scope of rights of the utility model. In addition, terms such as "first" and "second" mentioned in the specification or claims are only used to name elements or to distinguish different embodiments or ranges, and are not used to limit the number of elements. upper or lower limit.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476210.6UCN209690692U (en) | 2019-04-10 | 2019-04-10 | Lens module and projection equipment |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476210.6UCN209690692U (en) | 2019-04-10 | 2019-04-10 | Lens module and projection equipment |
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| CN209690692Utrue CN209690692U (en) | 2019-11-26 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201920476210.6UActiveCN209690692U (en) | 2019-04-10 | 2019-04-10 | Lens module and projection equipment |
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| CN (1) | CN209690692U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111812924A (en)* | 2019-04-10 | 2020-10-23 | 中强光电股份有限公司 | Lens modules and projection equipment |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812924A (en)* | 2019-04-10 | 2020-10-23 | 中强光电股份有限公司 | Lens modules and projection equipment |
| US11294144B2 (en) | 2019-04-10 | 2022-04-05 | Coretronic Corporation | Lens module and projection apparatus |
| CN111812924B (en)* | 2019-04-10 | 2022-06-14 | 中强光电股份有限公司 | Lens modules and projection equipment |
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