WO2019214278A1 - 光学元件固定结构及镜片组件及照度检测装置 - Google Patents

光学元件固定结构及镜片组件及照度检测装置 Download PDF

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Publication number
WO2019214278A1
WO2019214278A1 PCT/CN2019/070536 CN2019070536W WO2019214278A1 WO 2019214278 A1 WO2019214278 A1 WO 2019214278A1 CN 2019070536 W CN2019070536 W CN 2019070536W WO 2019214278 A1 WO2019214278 A1 WO 2019214278A1
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Prior art keywords
optical element
fixing
lens
fixed
wall
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PCT/CN2019/070536
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English (en)
French (fr)
Inventor
雷成峰
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深圳光峰科技股份有限公司
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Publication of WO2019214278A1 publication Critical patent/WO2019214278A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0403—Mechanical elements; Supports for optical elements; Scanning arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0414—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using plane or convex mirrors, parallel phase plates, or plane beam-splitters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0418—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using attenuators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/04—Optical benches therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets

Definitions

  • the present invention relates to the field of optical technologies, and in particular, to an optical component fixing structure, a lens assembly, and an illuminance detecting device.
  • the optical component fixing structure is widely used in the lens assembly, for example, an illuminometer having a lens assembly.
  • the illuminance meter is widely used in a cinema light source product, and the brightness of the light source is periodically detected to grasp the brightness decay of the light source during use.
  • the illuminance meter is usually provided with a lens, such as a convex mirror or an attenuating sheet. At present, most of the attenuating lenses are directly fixed by a pressing ring, and the attenuating piece is easily damaged during assembly, and the cost is high; vibration during use may cause use during use. Damage will result in greater cost loss.
  • the technical problem to be solved by the present invention is to provide an optical component fixing structure, a lens assembly and an illuminance detecting device, which can solve the problem that the optical fiber in the prior art may damage the overall efficiency or reliability of the lens during the fixing process, and affect the use effect. problem.
  • the present invention adopts a technical solution to provide an optical component fixing structure, comprising a fixing bracket for fixing an optical component, and a spring piece disposed on the fixing bracket, wherein the fixing The bracket is provided with a fixing groove for fixing the optical element and a protruding surface surrounding the fixing groove, and the protruding surface is recessed along the axial direction of the fixing bracket to form a concave surface, and the plane of the concave surface is located at the Between the raised surface and the surface of the optical element, one end of the elastic piece is fixed on the concave surface, and one end of the elastic element is pressed and fixed.
  • the protruding surface and the concave surface share two pairs, and the two pairs of the protruding surface and the concave surface are symmetrically and spaced apart from each other with respect to an axis of the fixing bracket.
  • the fixing bracket includes a side wall surrounding the optical element and a supporting step extending from an inner side of the side wall, and the protruding surface is disposed on a side of the side wall close to the external fixing surface, the supporting step
  • the fixing groove is formed with the side wall, and the optical element is disposed on the supporting step.
  • the elastic piece is fixed on the fixing surface by screws, and the head of the screw is located in a gap between the external fixing surface and the concave surface.
  • the elastic piece includes a fixed end connected to the fixing bracket and an elastic end extending from the fixed end and abutting against the optical element, and the screw is fixed on the fixed end.
  • the elastic pieces have two, which are respectively disposed at two opposite corners of the optical element, and each of the fixed ends is provided with two screws.
  • the present invention further provides a lens assembly, comprising: a lens holder, a lens, and an optical fixing structure fixed on the lens holder, wherein the fixing structure adopts the optical element as described above Fixed structure.
  • the optical component fixed on the optical component fixing structure is an attenuating sheet
  • the lens component further comprises a pressing ring, the pressing ring being attached to the protruding surface to fix the optical fixing structure in the On the lens holder.
  • the lens is fixed on a side of the lens holder adjacent to the attenuation member, and a side of the fixing member of the attenuation member away from the pressing ring is pressed against the lens.
  • the lens holder comprises a first outer wall and a second outer wall enclosing a receiving space, an inner diameter of the second outer wall is larger than an inner diameter of the first outer wall, and the lens is away from a side surface of the damping member Attached to the first outer wall, a peripheral edge of the lens abuts against an inner surface of the second outer wall.
  • the damping member is received between the second outer walls, and the pressing ring presses the attenuating sheet and the lens against the first outer wall.
  • the lens is a convex mirror.
  • the present invention further provides a technical solution for providing an illumination detecting device comprising a lens barrel having an incident end, a beam splitter and an exit end, an illuminometer and a lens assembly as described above, the lens assembly
  • the optical element is disposed between the lens barrel and the illuminometer, and the optical element is an attenuating sheet, and the attenuating sheet is disposed corresponding to the beam splitter.
  • the optical component fixing structure comprises a fixing bracket for fixing the optical component and a spring piece disposed on the fixing bracket, which is different from the prior art.
  • the protruding surface is recessed in a direction of an axial direction of the fixing bracket to form a concave surface, and a plane where the concave surface is located is located at the protrusion
  • the elastic piece is fixed at one end to the concave surface, and one end press-fits the optical element.
  • the lens assembly and the illuminance detecting device adopting the structure can ensure the coaxiality of the attenuator piece and the convex mirror, and the assembly process is simple and accurate. It can be guaranteed that it can be widely used in the design of illuminance meters for cinema light sources.
  • FIG. 1 is a schematic structural view of a fixing structure of an optical element of the present invention
  • Figure 2 is a cross-sectional view showing the optical component fixing structure of the present invention.
  • Figure 3 is a schematic exploded view of the lens assembly of the present invention.
  • Fig. 4 is a schematic view showing the assembled structure of the illuminance detecting device of the present invention.
  • the invention provides an optical component fixing structure and a lens assembly and an illuminance detecting device using the optical component fixing structure, so as to solve the problem that the optical component in the prior art may damage the optical performance in the fixing process, affecting the overall efficiency or reliability, and affecting the use.
  • the problem of the effect is not limited.
  • the optical element fixing structure provided by the present invention comprises a fixing bracket 1 and a spring piece 2 fixed on the fixing bracket 1.
  • the fixing bracket 1 includes an annular side wall 11 enclosing an inner space and a supporting step 12 extending from the inner side of the side wall 11 toward the inner space.
  • the support step 12 is perpendicular to the side wall 11 and is located in the middle of the side wall 11.
  • a fixing groove for fixing the optical element 3 is formed between the supporting step 12 and the side wall 11, the optical element 3 is overlapped on the supporting step 12, and the peripheral edge of the optical element 3 abuts on the inner surface of the side wall 11, further
  • the elastic piece 2 is pressed against the surface of the optical element 3, and the optical element 3 is press-fitted and fixed in the fixing groove.
  • the side wall 11 includes a projection surface 101 that is in contact with the external fixing surface, and a pressing surface that is disposed opposite to the projection surface.
  • the protruding surface 101 is disposed around the fixing groove. Further, the protruding surface 101 is provided with a concave surface 102 which is recessed away from the external fixing surface along the axial direction of the fixing bracket, and the concave surface 102 is spaced from the external fixing surface.
  • the elastic piece 2 is accommodated in the gap between the concave surface 102 and the external fixed surface, and the plane of the concave surface 102 is located between the protruding surface 101 and the surface of the optical element 3, so that the protruding surface 101 can be fixed to the outside.
  • the protrusion surface 101 and the recessed surface 102 share two pairs, and the two pairs of the protrusion surface 101 and the recessed surface 102 are symmetric with respect to the axis of the fixing bracket 1 and spaced apart.
  • the elastic piece 2 includes a fixed end 21 connected to the fixed bracket 1 and an elastic end 22 extending from the fixed end 21 to abut against the optical element 3.
  • the fixed end 21 is fixed to the recessed surface 102 by screws 4.
  • the head of the screw 4 is located in the gap between the outer fixed surface and the recessed surface 102.
  • the fixing bracket 1 has a circular structure as a whole
  • the optical element 3 has a rectangular structure
  • the elastic piece 2 has two, which are respectively located at opposite corners of the optical element 3.
  • Two fixing screws 4 are disposed on each of the fixed ends 21, and the two screws 4 are respectively located at two ends of the fixed end 21. In this way, it is ensured that the force is uniform and the fixing is firm.
  • the present invention also provides a lens assembly comprising a lens holder 5, a lens 6, an optical element fixing structure fixed to the lens holder 5, and a pressing ring 7 for pressing the optical element and the lens 6.
  • the lens 6 is a convex mirror
  • the optical element is an attenuating sheet.
  • the pressing ring 7 is pressed against the projection surface 101, and the surface of the pressing ring 7 that is in contact with the projection surface 101 serves as the external fixing surface described above.
  • the lens holder 5 includes a first outer wall 51 and a second outer wall 52 that enclose a receiving space, wherein the inner diameter of the second outer wall 52 is larger than the inner diameter of the first outer wall 51.
  • the second outer wall 52 is disposed adjacent to the side of the attenuating piece, and the lens is fixed to one side of the second outer wall 52.
  • the side of the fixing bracket 1 for fixing the attenuating piece away from the pressing ring is pressed against the lens 6. That is, the pressing surface on the side wall 11 is pressed against the lens 6.
  • the attenuating sheet and the optical element fixing structure are received between the second outer wall 52, and the pressing ring 7 presses the attenuating sheet and the lens 6 together against the first outer wall 51.
  • the attenuating sheet is fixed by the optical element fixing structure of the present invention, and in other alternative embodiments, the attenuating sheet may be replaced with other optical elements, and it may be implemented.
  • the lens barrel 8 includes an incident end, an exit end, and a beam splitter 81 between the incident end and the exit end.
  • the lens assembly is disposed between the lens barrel 8 and the illuminometer 9, and the attenuation sheet is disposed corresponding to the beam splitter 81.
  • the illuminometer 9 is arranged corresponding to the optical axis of the lens.
  • the illuminance meter is an integrating sphere luminance sensor.
  • the present invention provides an optical component fixing structure, comprising a fixing bracket for fixing an optical component, and a spring piece disposed on the fixing bracket, wherein the fixing bracket is provided with fixing the optical a fixing groove of the component and a protruding surface surrounding the fixing groove, wherein the protruding surface is recessed along the axial direction of the fixing bracket to form a concave surface, and the plane of the concave surface is located on the surface of the protruding surface and the optical element
  • the elastic piece is fixed to the concave surface at one end, and the optical element is press-fitted at one end.
  • the structure is simple, saves space, has low damage rate of optical components, relatively reduces cost, and is convenient to replace.
  • the lens assembly and the illuminance detecting device adopting the structure can ensure the coaxiality of the attenuator piece and the convex mirror, and the assembly process is simple and accurate. It can be guaranteed that it can be widely used in the design of illuminance meters for cinema light sources.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Lens Barrels (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

一种光学元件（3）固定结构及镜片组件及照度检测装置。光学元件（3）固定结构，包括用于固定光学元件（3）的固定支架（1）以及设置在固定支架（1）上的弹片（2）。固定支架（1）上设置有用于固定光学元件（3）的固定槽以及环绕固定槽的突起面（101），突起面（101）沿固定支架（1）的轴向方向凹陷形成凹陷面（102），凹陷面（102）所在的平面位于所述突起面（101）和光学元件（3）的表面之间，弹片（2）一端固定在凹陷面（102），一端压合固定光学元件（3）。此种结构结构简单，节省空间，光学元件（3）损毁率低，相对降低成本，方便更换，采用此结构的镜片组件和照度检测装置能保证衰减片部件和凸镜的同轴度，装配工艺简单且精度可以保证，可广泛应用于影院光源的照度计的设计中。

Description

光学元件固定结构及镜片组件及照度检测装置 技术领域
本发明涉及光学技术领域，特别是涉及一种光学元件固定结构及镜片组件及照度检测装置。
背景技术
光学元件固定结构广泛使用于镜片组件中，例如具有镜片组件的照度计，照度计在影院光源类产品中大量使用，定期对光源亮度进行检测，掌握光源在使用过程中的亮度衰减情况。照度计中通常设置有镜片，例如凸镜或衰减片，目前大多数衰减镜片的固定采用压圈直接压紧固定，装配时衰减片容易损毁，成本较高；使用过程中震动可能造成使用过程中损毁，将导致更大的成本损失。
因此，实有必要提供一种新的光学元件固定结构及镜片组件及照度检测装置以解决上述问题。
发明内容
本发明主要解决的技术问题是提供一种光学元件固定结构及镜片组件及照度检测装置，以解决现有技术中镜片在固定过程中会破坏其光学性能影响整体效率或可靠性，影响使用效果的问题。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种光学元件固定结构，包括用于固定光学元件的固定支架以及设置在所述固定支架上的弹片，其特征在于，所述固定支架上设置有用于固定所述光学元件的固定槽以及环绕所述固定槽的突起面，所述突起面沿所述固定支架的轴向方向凹陷形成凹陷面，所述凹陷面所在的平面位于所述突起面和光学元件的表面之间，所述弹片一端固定在所述凹陷面，一端压合固定所述光学元件。
优选的，所述突起面和所述凹陷面共有两对，两对所述突起面和所述凹陷面相对于固定支架的轴线对称并间隔设置。
优选的，所述固定支架包括环绕所述光学元件的侧壁和自所述侧壁内侧延伸的支撑台阶，所述突起面设置在所述侧壁靠近外界固定面的一侧，所述支撑台阶与所述侧壁之间形成所述固定槽，所述光学元件设置在所述支撑台阶上。
优选的，所述弹片通过螺钉固定在所述固定面上，所述螺钉的头部位于外界固定面与所述凹陷面之间的间隙内。
优选的，所述弹片包括与所述固定支架相连的固定端和自所述固定端延伸的与光学元件相抵接的弹性端，所述螺钉固定在所述固定端上。
优选的，所述弹片共有两个，分别设置在所述光学元件的两对角处，每个所述固定端上设置有两个螺钉。
为解决上述技术问题，本发明还提供一个技术方案是：提供一种镜片组件，包括镜片支架、镜片、固定在所述镜片支架上的光学固定结构，所述固定结构采用如上所述的光学元件固定结构。
优选的，所述光学元件固定结构上固定的光学元件为衰减片，所述镜片组件还包括压圈，所述压圈贴合在所述突起面上以将所述光学固定结构固定在所述镜片支架上。
优选的，所述镜片固定在所述镜片支架靠近所述衰减部件的一侧，所述衰减部件的固定支架远离所述压圈的一侧抵压在所述镜片上。
优选的，所述镜片支架包括围成容纳空间的第一外壁和第二外壁，所述第二外壁的内径大于所述第一外壁的内径，所述镜片远离所述衰减部件的一侧表面搭接在所述第一外壁上，所述镜片的周缘抵接在所述第二外壁的内表面。
优选的，所述衰减部件容置在所述第二外壁之间，所述压圈将所述衰减片和所述镜片抵压在所述第一外壁上。
优选的，所述镜片为凸镜。
为解决上述技术问题，本发明还提供一个技术方案是：提供一种照度检测装置，其包括具有入射端、分光镜和出射端的镜筒、照度计以及 如上所述的镜片组件，所述镜片组件设置在所述镜筒与所述照度计之间，所述光学元件为衰减片，所述衰减片对应所述分光镜设置。
本发明的有益效果是：区别于现有技术的情况，本发明提供一种光学元件固定结构，包括用于固定光学元件的固定支架以及设置在所述固定支架上的弹片，所述固定支架上设置有用于固定所述光学元件的固定槽以及环绕所述固定槽的突起面，所述突起面沿所述固定支架的轴向方向凹陷形成凹陷面，所述凹陷面所在的平面位于所述突起面和光学元件的表面之间，所述弹片一端固定在所述凹陷面，一端压合固定所述光学元件。此种结构结构简单，节省空间，光学元件损毁率低，相对降低成本，方便更换，采用此结构的镜片组件和照度检测装置能保证衰减片部件和凸镜的同轴度，装配工艺简单且精度可以保证，可广泛应用于影院光源的照度计的设计中。
附图说明
图1是本发明光学元件固定结构的结构示意图；
图2是本发明光学元件固定结构的剖视图；
图3是本发明镜片组件的分解结构示意图；
图4是本发明照度检测装置的组装结构示意图。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种光学元件固定结构及应用该光学元件固定结构的镜片组件和照度检测装置，以解决现有技术中光学元件在固定过程中会破坏其光学性能影响整体效率或可靠性，影响使用效果的问题。
如图1和图2所示，本发明提供的光学元件固定结构，包括固定支架1和固定在固定支架1上的弹片2。
其中固定支架1包括围成内部空间的环状侧壁11和自侧壁11的内侧向内部空间方向延伸的支撑台阶12。在本实施方式中，支撑台阶12 垂直于侧壁11，且位于侧壁11的中部。支撑台阶12与侧壁11之间形成用于固定光学元件3的固定槽，光学元件3搭接在支撑台阶12上，且光学元件3的周缘抵接在侧壁11的内表面上，进一步的，弹片2抵压在光学元件3的表面，将光学元件3压合固定在固定槽内。
侧壁11包括与外界固定面相贴合的突起面101和与突起面相对设置的压合面。突起面101环绕固定槽设置，进一步的，突起面101上设置有沿所述固定支架的轴向方向，向远离外界固定面方向凹陷的凹陷面102，凹陷面102与外界固定面之间间隔设置，弹片2容置在凹陷面102与外界固定面之间的间隙内，凹陷面102所在的平面位于突起面101和光学元件3的表面之间，这样，一则可以保证突起面101与外界固定面之间的完全贴合，二则可以为弹片预留空间，三则通过弹片压合固定光学元件，而突起面101相对光学元件3和凹陷面102突出，不会对光学元件3表面造成损伤。在本实施方式中，突起面101和凹陷面102共有两对，两对突起面101和凹陷面102相对于固定支架1的轴线对称并间隔设置。
弹片2包括与固定支架1相连的固定端21和自固定端21延伸的与光学元件3相抵接的弹性端22。固定端21通过螺钉4固定在凹陷面102上。螺钉4的头部位于外界固定面与凹陷面102之间的间隙内。
具体在本实施方式中，固定支架1整体呈圆形结构，光学元件3为矩形结构，弹片2共有两个，分别位于光学元件3的对角处。每个固定端21上设置有两个螺钉4，两螺钉4分别位于固定端21的两端。这样，可以保证受力均匀，固定牢固。
如图3所示，本发明还提供一种镜片组件，包括镜片支架5、镜片6、固定在镜片支架5上的光学元件固定结构以及用于压合光学元件和镜片6的压圈7。在本实施方式中，镜片6为凸镜，光学元件为衰减片。压圈7抵压在突起面101上，压圈7与突起面101相贴合的表面即充当前述所述的外界固定面。
镜片支架5包括围成容纳空间的第一外壁51和第二外壁52，其中第二外壁52的内径大于第一外壁51的内径。其中第二外壁52靠近衰减片一侧设置，镜片固定在第二外壁52的一侧，用于固定衰减片的固 定支架1远离压圈的一侧抵压在镜片6上。即，侧壁11上的抵压面抵压在镜片6上。
镜片6远离衰减片的一侧表面搭接在第一外壁51上，镜片6的周缘抵接在第二外壁52的内表面。衰减片和光学元件固定结构容置在第二外壁52之间，压圈7将衰减片和镜片6共同抵压在第一外壁51上。
需要说明的是，本实施方式为采用本发明光学元件固定结构固定衰减片，在可选择的其他实施方式中，也可以将衰减片替换为其他光学元件，也是可以实施的。
如图4所示，为本发明提供的一种照度检测装置，包括镜筒8、照度计9和本发明提供的镜片组件。
镜筒8包括入射端、出射端和位于入射端和出射端之间的分光镜81。
镜片组件设置在镜筒8与照度计9之间，衰减片对应分光镜81设置。照度计9对应镜片的光轴设置。具体在本实施方式中，照度计为积分球亮度传感器。
区别于现有技术的情况，本发明提供一种光学元件固定结构，包括用于固定光学元件的固定支架以及设置在所述固定支架上的弹片，所述固定支架上设置有用于固定所述光学元件的固定槽以及环绕所述固定槽的突起面，所述突起面沿所述固定支架的轴向方向凹陷形成凹陷面，所述凹陷面所在的平面位于所述突起面和光学元件的表面之间，所述弹片一端固定在所述凹陷面，一端压合固定所述光学元件。此种结构结构简单，节省空间，光学元件损毁率低，相对降低成本，方便更换，采用此结构的镜片组件和照度检测装置能保证衰减片部件和凸镜的同轴度，装配工艺简单且精度可以保证，可广泛应用于影院光源的照度计的设计中。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (13)

  1. 一种光学元件固定结构，包括用于固定光学元件的固定支架以及设置在所述固定支架上的弹片，其特征在于，所述固定支架上设置有用于固定所述光学元件的固定槽以及环绕所述固定槽的突起面，所述突起面沿所述固定支架的轴向方向凹陷形成凹陷面，所述凹陷面所在的平面位于所述突起面和光学元件的表面之间，所述弹片一端固定在所述凹陷面，一端压合固定所述光学元件。
  2. 根据权利要求1所述的光学元件固定结构，其特征在于，所述突起面和所述凹陷面共有两对，两对所述突起面和所述凹陷面相对于固定支架的轴线对称并间隔设置。
  3. 根据权利要求1所述的光学元件固定结构，其特征在于，所述固定支架包括环绕所述光学元件的侧壁和自所述侧壁内侧延伸的支撑台阶，所述突起面设置在所述侧壁靠近外界固定面的一侧，所述支撑台阶与所述侧壁之间形成所述固定槽，所述光学元件设置在所述支撑台阶上。
  4. 根据权利要求1所述的光学元件固定结构，其特征在于，所述弹片通过螺钉固定在所述固定面上，所述螺钉的头部位于外界固定面与所述凹陷面之间的间隙内。
  5. 根据权利要求3所述的光学元件固定结构，其特征在于，所述弹片包括与所述固定支架相连的固定端和自所述固定端延伸的与光学元件相抵接的弹性端，所述螺钉固定在所述固定端上。
  6. 根据权利要求5所述的光学元件固定结构，其特征在于，所述弹片共有两个，分别设置在所述光学元件的两对角处，每个所述固定端上设置有两个螺钉。
  7. 一种镜片组件，其特征在于，包括镜片支架、镜片、固定在所述镜片支架上的光学元件固定结构，所述光学元件固定结构采用如权利要求1到6中任意一项所述的光学元件固定结构。
  8. 根据权利要求7所述的镜片组件，其特征在于，所述光学元件固定结构上固定的光学元件为衰减片，所述镜片组件还包括压圈，所述压 圈贴合在所述突起面上以将所述光学固定结构固定在所述镜片支架上。
  9. 根据权利要求8所述的镜片组件，其特征在于，所述镜片固定在所述镜片支架靠近所述衰减片的一侧，所述衰减片的固定支架远离所述压圈的一侧抵压在所述镜片上。
  10. 根据权利要求9所述的镜片组件，其特征在于，所述镜片支架包括围成容纳空间的第一外壁和第二外壁，所述第二外壁的内径大于所述第一外壁的内径，所述镜片远离所述衰减片的一侧表面搭接在所述第一外壁上，所述镜片的周缘抵接在所述第二外壁的内表面。
  11. 根据权利要求10所述的镜片组件，其特征在于，所述衰减片容置在所述第二外壁之间，所述压圈将所述衰减片和所述镜片抵压在所述第一外壁上。
  12. 根据权利要求7所述的镜片组件，其特征在于，所述镜片为凸镜。
  13. 一种照度检测装置，其特征在于，包括具有入射端、分光镜和出射端的镜筒、照度计以及如权利要求7到12中任意一项所述的镜片组件，所述镜片组件设置在所述镜筒与所述照度计之间，所述光学元件为衰减片，所述衰减片对应所述分光镜设置。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112285862A (zh) * 2020-11-23 2021-01-29 中国工程物理研究院应用电子学研究所 一种通用光学镜架及其使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN212456725U (zh) * 2020-07-24 2021-02-02 深圳市绎立锐光科技开发有限公司 光学镜片固定装置以及灯具

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009014837U1 (de) * 2009-11-03 2010-02-18 Basler Ag Haltevorrichtung für ein optisches Filterelement einer Kamera
CN103472690A (zh) * 2013-09-25 2013-12-25 中国科学院长春光学精密机械与物理研究所 一种投影物镜系统中光学元件轴向调节装置
CN105842840A (zh) * 2015-12-15 2016-08-10 浙江大学 仿晶状体层状结构对称式变焦透镜
CN207123380U (zh) * 2017-07-24 2018-03-20 深圳市光峰光电技术有限公司 光源亮度衰减测试装置及投影设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3412638B2 (ja) * 1993-01-19 2003-06-03 株式会社ニコン レンズの保持具
JPH0821936A (ja) * 1994-07-06 1996-01-23 Konica Corp 光走査系レンズの支持構造
JPH11202177A (ja) * 1998-01-13 1999-07-30 Chinontec Kk 保持具、保持装置、レンズ押え環およびレンズ保持装置
JP2007188010A (ja) * 2006-01-16 2007-07-26 Fujinon Corp レンズ装置及びレンズ鏡筒及びレンズ保持方法
CN102540386B (zh) * 2012-02-07 2013-09-18 中国科学院光电技术研究所 一种动镜弹性支撑装置
JP2017161650A (ja) * 2016-03-08 2017-09-14 日本電産コパル株式会社 レンズ保持構造及びそれを備える撮像装置
CN106443936A (zh) * 2016-10-09 2017-02-22 中国科学院长春光学精密机械与物理研究所 一种光学元件的五自由度微动调整机构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009014837U1 (de) * 2009-11-03 2010-02-18 Basler Ag Haltevorrichtung für ein optisches Filterelement einer Kamera
CN103472690A (zh) * 2013-09-25 2013-12-25 中国科学院长春光学精密机械与物理研究所 一种投影物镜系统中光学元件轴向调节装置
CN105842840A (zh) * 2015-12-15 2016-08-10 浙江大学 仿晶状体层状结构对称式变焦透镜
CN207123380U (zh) * 2017-07-24 2018-03-20 深圳市光峰光电技术有限公司 光源亮度衰减测试装置及投影设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112285862A (zh) * 2020-11-23 2021-01-29 中国工程物理研究院应用电子学研究所 一种通用光学镜架及其使用方法

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