WO2019024473A1 - 光学镜片固定装置及光学投影系统 - Google Patents

光学镜片固定装置及光学投影系统 Download PDF

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Publication number
WO2019024473A1
WO2019024473A1 PCT/CN2018/074758 CN2018074758W WO2019024473A1 WO 2019024473 A1 WO2019024473 A1 WO 2019024473A1 CN 2018074758 W CN2018074758 W CN 2018074758W WO 2019024473 A1 WO2019024473 A1 WO 2019024473A1
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WO
WIPO (PCT)
Prior art keywords
optical lens
sheath
fixing device
pressing piece
optical
Prior art date
Application number
PCT/CN2018/074758
Other languages
English (en)
French (fr)
Inventor
周正平
李屹
Original Assignee
深圳市光峰光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市光峰光电技术有限公司 filed Critical 深圳市光峰光电技术有限公司
Priority to EP18841585.5A priority Critical patent/EP3663828A4/en
Publication of WO2019024473A1 publication Critical patent/WO2019024473A1/zh

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors

Definitions

  • the utility model belongs to the technical field of optical devices, in particular to an optical lens fixing device and an optical projection system.
  • optical projection technology has been widely used in people's daily life.
  • the use of optical projection systems can be found everywhere in conferences, teaching or entertainment venues.
  • the design of the light source is increasingly miniaturized, and the design of the optical path is more and more complicated.
  • a large amount of stray light is irradiated on the structural member of the fixed optical lens due to the collection of several light rays, and is fixed.
  • the structural members of the optical lens are typically stainless steel shrapnel.
  • the stray light intensity is very strong, and the stainless steel shrapnel is prone to yellowing failure and generates volatile substances under long-term illumination, which seriously affects optical performance.
  • the optical lens is fixed by direct elastic fixing (unprotected device) or dispensing, and the reliability and stability are poor.
  • the present invention provides an optical lens fixing device and an optical projection system with good optical performance, high reliability and high stability.
  • the present invention provides an optical lens fixing device comprising an optical lens holder for supporting an optical lens and a tablet sheath assembly for fixing the optical lens to the optical lens holder, the tablet sheath assembly comprising a sheath And a pressing piece, the sheath is fixed on the optical lens holder, a receiving groove is defined in the sheath, the pressing piece is fixed and received in the receiving groove, and the pressing piece and the protecting piece are The sleeve holds the lens together.
  • the sheath comprises a bottom wall and side walls disposed on two sides of the bottom wall, the bottom wall and the two side walls together define the receiving groove, and the pressing piece is fixed at the On the bottom wall.
  • the bottom wall is provided with a mounting hole
  • the pressing piece is provided with a fixing hole
  • the optical lens fixing device further comprises a first fixing member, the first fixing member passes through the mounting hole and the A fixing hole fixes the optical lens on the bottom wall.
  • the pressing piece includes a first engaging portion, a second engaging portion and a third engaging portion which are sequentially connected, wherein the fixing hole is formed on the first engaging portion; the second engaging portion and the first portion A mating portion is disposed in an inverted L shape and extends toward the bottom wall; and the third mating portion is coupled to one end of the second mating portion opposite to the first mating portion.
  • the optical lens holder comprises a main body portion and two support columns spaced apart from each other by the main body portion, and the sheath is fixed on the support post.
  • the optical lens fixing device further includes a second fixing member that passes through the sheath and the support post to fix the sheath on the support post.
  • the optical lens holder further includes a limiting portion extending from the main body portion and connecting the two supporting columns, and the limiting portion is provided with a limiting groove for holding the optical lens.
  • the main body portion, the support column and the limiting portion are integrally formed structures.
  • the sheath is made of stainless steel and the tablet is made of aluminum.
  • the present invention also provides an optical projection system comprising the optical lens fixing device of the present invention and an optical lens fixed to the optical lens fixing device.
  • the pressing piece for clamping and fixing the optical lens is wrapped and fixed by providing a sheath, and the two are integrally fixed to the optical body.
  • the lens holder thereby avoiding the phenomenon of discoloration or volatilization caused by the direct illumination of the tablet by the stray light, makes the optical lens fixing device and the optical projection system have good optical performance, reliability and stability.
  • FIG. 1 is a schematic structural view of an optical lens fixing device of the present invention, wherein the optical lens is mounted on the optical lens fixing device.
  • FIG. 2 is a partially exploded perspective view of the optical lens fixing device of the present invention, wherein the optical lens is mounted on the optical lens fixing device.
  • FIG 3 is an exploded perspective view showing the three-dimensional structure of the tablet sheathing assembly of the optical lens fixing device of the present invention.
  • the present invention provides an optical lens fixing device 100 for fixing an optical lens 3.
  • the optical lens fixture 100 includes an optical lens holder 1 and a tablet sheath assembly 2 disposed on the optical lens holder 1.
  • the optical lens holder 1 is used to support the optical lens 3.
  • the optical lens holder 1 includes a main body portion 11 , at least two support columns 12 extending from the main body portion 11 and spaced apart from each other, and a limiting portion extending from the main body portion 11 and connecting the two support columns 12 13.
  • the body portion 11 is for forming a fixed connection with other components, such as a projector housing.
  • the support post 12 is for supporting the optical lens 3 in a first direction
  • the limiting portion 13 is for supporting the optical lens 3 in the second direction.
  • the first direction and the second direction are perpendicular.
  • a limiting slot 131 is further defined in the limiting portion 13 , and the limiting slot 131 is configured to receive and hold the optical lens 3 .
  • the optical lens 3 can be quickly positioned by being locked in the limiting slot 131 to improve assembly efficiency.
  • the main body portion 11, the support post 12, and the limiting portion 13 are integrally formed.
  • the tablet sheath assembly 2 is used to fix the optical lens 3 to the optical lens holder 1. Specifically, the tableting sheath assembly 2 holds the optical lens 3 to prevent the optical lens 3 from being detached from the optical lens holder 1. In this embodiment, the tablet sheath assembly 2 is fixed to the support post 12 to fix the optical lens 3 on the limiting portion 13 of the optical lens holder 1 .
  • the tablet sheathing assembly 2 includes a sheath 21, a pressing piece 22, a first fixing member 23, and a second fixing member 24.
  • the first fixing member 23 is for locking the pressing piece 22 on the sheath 21.
  • the second fixing member 24 is for locking the sheath 21 on the support column 12 of the optical lens holder 1.
  • the sheath 21 includes a fixing portion (not labeled) and a clamping portion (not numbered) for fixing the support post 12, and the clamping portion is for receiving the pressing piece 22 and the first fixing member 23.
  • the sheath 21 includes a bottom wall 211 and two side walls 212, and the bottom wall 211 and the two side walls 212 surround the receiving recess 213.
  • the pressing piece 22 holds the optical lens 3 and is fixed in the receiving recess 213 by the first fixing member 23 .
  • the bottom wall 211 has a certain curvature to cooperate with the optical lens 3.
  • the bottom wall 211 has a mounting hole 214, and the pressing piece 22 is provided with a fixing hole 221 for engaging with the first fixing member 23, and the first fixing member 23 passes through the mounting hole 214 and the fixing A hole 221 fixes the pressing piece 22 to the bottom wall 211.
  • the second fixing member 24 passes through the sheath 21 and the support post 12 to fix the sheath 21 on the support column 12.
  • the pressing piece 22 includes a first engaging portion 222, a second engaging portion 223 and a third engaging portion 224 which are sequentially connected and integrally formed.
  • the fixing hole 221 is defined in the first engaging portion 222, and the fixing hole 221 is configured to cooperate with the mounting hole 214 on the sheath 21 to fix the pressing piece 22 to the sheath 21.
  • the second engaging portion 223 and the first engaging portion 222 are disposed substantially in an inverted "L" shape and extend in a direction opposite to the bottom wall 211 of the sheath 21.
  • the third mating portion 224 is connected to one end of the second mating portion 223 opposite to the first mating portion 222, and the third mating portion 224 is configured to be engaged with the mating portion of the sheath 21 (Fig. In the case of not shown, the pressing piece 22 is held in the sheath 21 to prevent the pressing piece 22 from being detached from the sheath 21.
  • the first mating portion 222 and the second mating portion 223 have a certain curvature to match the edge of the optical lens 3.
  • the pressing piece 22 has a certain elasticity to maintain the edge of the optical lens 3 while being held by the first fixing member 23.
  • the sheath 21 is made of an aluminum material
  • the pressing piece 22 is made of a stainless steel material.
  • the third engaging portion 224 is clamped on the sheath 21, and the first engaging portion is further passed through the first fixing member 23.
  • 222 is fixed to the bottom wall 211 of the sheath 21.
  • the pressing piece 22 is fixed on the bottom wall 211, and the side wall 212 completely blocks the pressing piece 22 in a direction perpendicular to the bottom wall 211, so that the pressing piece 22 is completely accommodated.
  • the receiving space 213 is inside.
  • the size of the sheath 21 is larger than the size of the pressing piece 22 so that the sheath 21 forms a wrapping structure for the pressing piece.
  • first fixing member 23 and the second fixing member 24 are both screws.
  • first fixing member 23 and the second fixing member 24 can also be a combination of bolts and nuts or other components.
  • the pressing piece 22 can also be connected by other means, such as bonding or welding.
  • the tablet sheath assembly 2 is disposed corresponding to the support column 12 to be respectively fixed to the two support columns 12.
  • the two of the tablet sheath assemblies 2 are structurally versatile, thereby reducing production costs.
  • the number of the tablet sheathing assemblies 2 is two, and the two tableting and sheathing assemblies 2 are respectively disposed on the two supporting columns 12 to lock the optical lens 3 It is fixed to the limiting portion 13.
  • the first engaging portion 222 of the pressing piece 22 holds the optical lens 3 in a first direction
  • the third The fitting portion 224 holds the optical lens 3 from the second direction to cooperate with the optical lens holder 1 to fix the optical lens 3 relatively stably on the holder 1.
  • the sheath 21 is made of aluminum, which has no discoloration or volatilization under the irradiation of light, and therefore does not affect the optical performance, and the pressing piece 22 is completely housed in the sheath 21.
  • the side wall 212 of the sheath 21 can resist the illumination of the pressing piece 22 by the light source light, thereby avoiding the problem of discoloration or volatilization caused by the direct irradiation of the light on the pressing piece 22, so that the optical lens fixing device has good optical performance and reliability. High sex.
  • the present invention also provides an optical projection system (not shown), including the optical lens fixing device 100 provided by the present invention and the optical lens 3 fixed to the optical lens fixing device 100.
  • the pressing piece for holding the fixed optical lens is wrapped and fixed by providing a sheath made of an aluminum material, and both Forming and fixing together on the optical lens holder to prevent the stray light from directly illuminating the pressing piece, and the sheath is made of aluminum material, and no discoloration or volatilization occurs under the illumination of the light, so that the optical lens is fixed
  • the device and optical projection system have good optical performance, reliability and stability.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Projection Apparatus (AREA)

Abstract

本实用新型提供了一种光学镜片固定装置,包括用于支撑光学镜片的光学镜片支架和将光学镜片固定于所述光学镜片支架的压片护套组件,所述压片护套组件包括护套和压片,所述护套固定在所述光学镜片支架上,所述护套内开设收容凹槽,所述压片固定于所述收容凹槽内且所述压片和所述护套共同夹持所述镜片。本实用新型还提供一种光学投影系统。与现有技术相比,本实用新型的光学镜片固定装置及光学投影系统光学性能好、可靠性及稳定性高。

Description

光学镜片固定装置及光学投影系统 技术领域
本实用新型属于光学设备技术领域,具体涉及一种光学镜片固定装置及光学投影系统。
 
背景技术
目前,光学投影技术在人们日常生活中得到普遍的应用。无论在会议、教学或是娱乐场所都可以随处可见光学投影系统的使用。
技术问题
相关技术的光学投影系统中,光源设计越来越追求小型化,光路设计越来越复杂,在合光处由于几路光线的汇集导致大量杂散光照射于固定光学镜片的结构件上,而固定光学镜片的结构件一般为不锈钢弹片。在高功率光源中,杂散光强度很强,不锈钢弹片在长期照射下易变黄失效并产生挥发性物质,严重影响光学性能。同时,相关技术的光学投影系统中,一般在此处光学镜片固定采用直接弹片固定(未加保护装置)或者点胶固定,可靠性和稳定性差。
因此,有必要提供一种新的光学镜片固定装置及光学投影系统解决上述问题。
技术解决方案
针对以上现有技术的不足,本实用新型提出一种光学性能好、可靠性及稳定性高的光学镜片固定装置及光学投影系统。
本实用新型提供了一种光学镜片固定装置,包括用于支撑光学镜片的光学镜片支架和将光学镜片固定于所述光学镜片支架的压片护套组件,所述压片护套组件包括护套和压片,所述护套固定在所述光学镜片支架上,所述护套内开设收容凹槽,所述压片固定并收容于所述收容凹槽内且所述压片和所述护套共同夹持所述镜片。
优选的,所述护套包括底壁和设置在所述底壁两侧的侧壁,所述底壁和两个所述侧壁共同围成所述收容凹槽,所述压片固定在所述底壁上。
优选的,所述底壁上开有安装孔,所述压片上开有固定孔,所述光学镜片固定装置进一步包括第一固定件,所述第一固定件穿过所述安装孔和所述固定孔将所述光学镜片固定在所述底壁上。
优选的,所述压片包括依次连接的第一配合部、第二配合部及第三配合部,所述固定孔开设于所述第一配合部上;所述第二配合部与所述第一配合部呈倒L形状设置,并朝向所述底壁的方向延伸;所述第三配合部连接在所述第二配合部的相对所述第一配合部的一端。
优选的,所述光学镜片支架包括主体部和由所述主体部延伸的相互间隔设置的两个支撑柱,所述护套固定在所述支撑柱上。
优选的,所述光学镜片固定装置进一步包括第二固定件,所述第二固定件穿过所述护套和所述支撑柱以将所述护套固定在所述支撑柱上。
优选的,所述光学镜片支架还包括由所述主体部延伸的连接两个所述支撑柱的限位部,所述限位部上设有用于卡持光学镜片的限位槽。
优选的,所述主体部、所述支撑柱及所述限位部为一体成型结构。
优选的,所述护套由不锈钢制成,所述压片由铝制成。
本实用新型还提供一种光学投影系统,包括本实用新型上述的光学镜片固定装置和固定于所述光学镜片固定装置的光学镜片。
 
有益效果
与现有技术相比,本实用新型的光学镜片固定装置及光学投影系统中,通过设置护套将用于夹持固定光学镜片的压片形成包裹并固定,且二者形成一体共同固定于光学镜片支架,从而避免杂光直接照射所述压片产生的变色或挥发等现象使得所述光学镜片固定装置及光学投影系统光学性能好、可靠性及稳定性高。
附图说明
下面结合附图详细说明本实用新型。通过结合以下附图所作的详细描述,本实用新型的上述或其他方面的内容将变得更清楚和更容易理解。附图中:
图1为本实用新型光学镜片固定装置的结构示意图,其中所述光学镜片装配于所述光学镜片固定装置上。
图2为本实用新型光学镜片固定装置的部分结构分解示意图,其中所述光学镜片装配于所述光学镜片固定装置上。
图3为本实用新型光学镜片固定装置的压片护套组件立体结构分解图。
本发明的实施方式
下面结合附图详细说明本实用新型的具体实施方式。
在此记载的具体实施方式/实施例为本实用新型的特定的具体实施方式,用于说明本实用新型的构思,均是解释性和示例性的,不应解释为对本实用新型实施方式及本实用新型范围的限制。除在此记载的实施例外,本领域技术人员还能够基于本申请权利要求书和说明书所公开的内容采用显而易见的其它技术方案,这些技术方案包括采用对在此记载的实施例做出任何显而易见的替换和修改的技术方案,都在本实用新型的保护范围之内。
请参阅图1-3,本实用新型提供了一种光学镜片固定装置100,用于固定一光学镜片3。所述光学镜片固定装置100包括光学镜片支架1和设置在所述光学镜片支架1上的压片护套组件2。
所述光学镜片支架1用于支撑所述光学镜片3。所述光学镜片支架1包括主体部11、由所述主体部11延伸的相互间隔设置的至少两个支撑柱12和由所述主体部11延伸的连接两个所述支撑柱12的限位部13。
所述主体部11用于与其它部件、如投影机壳体形成固定连接。
所述支撑柱12用于在第一方向上支撑光学镜片3,所述限位部13用于在第二方向上支撑光学镜片3。在本实施方式中,所述第一方向和第二方向相垂直。
所述限位部13上进一步开设限位槽131,所述限位槽131用于容置并卡持所述光学镜片3。装配时所述光学镜片3可通过卡设于所述限位槽131内形成快速定位,提高装配效率。
本实施方式中所述主体部11、所述支撑柱12及所述限位部13为一体成型结构。
所述压片护套组件2用于将光学镜片3固定于所述光学镜片支架1。具体地,所述压片护套组件2夹持所述光学镜片3以防止所述光学镜片3与所述光学镜片支架1脱离。本实施方式中,所述压片护套组件2固定于所述支撑柱12以将所述光学镜片3固定在所述光学镜片支架1的限位部13上。
具体的,所述压片护套组件2包括护套21、压片22、第一固定件23和第二固定件24。所述第一固定件23用于将所述压片22锁紧在所述护套21上。
所述第二固定件24用于将所述护套21锁紧在所述光学镜片支架1的所述支撑柱12上。
所述护套21包括固定部(未标号)和夹持部(未标号),固定部用于与支撑柱12固定,夹持部用于收容压片22和第一固定件23。
具体的,所述护套21包括底壁211和两侧壁212,所述底壁211和两所述侧壁212围合成收容凹槽213。所述压片22夹持光学镜片3且通过所述第一固定件23固定于所述收容凹槽213内。而且所述底壁211具有一定的弧度以与光学镜片3相配合。
所述底壁211上具有安装孔214,所述压片22上开有固定孔221,以与第一固定件23配合,所述第一固定件23穿过所述安装孔214和所述固定孔221将所述压片22固定于所述底壁211上。
所述第二固定件24穿过所述护套21和所述支撑柱12以将所述护套固21定在所述支撑柱12上。
所述压片22包括依次连接且一体成型设置的第一配合部222、第二配合部223及第三配合部224。所述固定孔221开设于所述第一配合部222上,所述固定孔221用于与所述护套21上的安装孔214配合以将所述压片22固定于所述护套21的底壁211上。所述第二配合部223与所述第一配合部222大致呈倒“L”形状设置,并朝向相对所述护套21的底壁211的方向延伸。所述第三配合部224连接在所述第二配合部223相对所述第一配合部222的一端,所述第三配合部224用于卡持在所述护套21上的配合部(图未示)内,以将所述压片22卡持在所述护套21内从而避免所述压片22与所述护套21脱离。优选地,所述第一配合部222和所述第二配合部223具有一定弧度,以与光学镜片3边缘相匹配。
所述压片22具有一定弹性,以保持在所述第一固定件23卡持的情况下仍能与光学镜片3边缘卡持。
在本实施方式中,所述护套21由铝质材料制成,所述压片22由不锈钢材质制成。
当所述压片22固定在所述护套21上时,将所述第三配合部224卡持在所述护套21上,再通过所述第一固定件23将所述第一配合部222固定在所述护套21的底壁211上。此时所述压片22固定在所述底壁211上,所述侧壁212在垂直于所述底壁211的方向上完全遮挡住所述压片22,以使得所述压片22完全收容在所述收容空间213内。且所述护套21的尺寸大于所述压片22的尺寸以所述使得所述护套21对所述压片形成包裹结构。
本实施方式中,所述第一固定件23和所述第二固定件24均为螺钉。
可以理解,所述第一固定件23和所述第二固定件24也可为螺栓与螺母的组合或其他元件。
可以理解,在其他实施方式中,所述压片22也可通过其他方式连接,如粘结或焊接等。
所述压片护套组件2与所述支撑柱12对应设置以分别固定于两个所述支撑柱12。两个所述压片护套组件2的结构通用性强,从而可减少生产成本。
在本实施方式中,所述压片护套组件2的数量为两个,所述两个压片护套组件2分别对应设置在所述两个支撑柱12上以将所述光学镜片3锁固在所述限位部13上。
当所述压片22和所述护套21共同夹持所述光学镜片22时,所述压片22的第一配合部222在第一方向上夹持所述光学镜片3,所述第三配合部224从第二方向上夹持所述光学镜片3,从而与所述光学镜片支架1共同配合从而将所述光学镜片3相对稳定地固定在所述支架1上。此外,所述护套21为铝制材质,其在光线照射下无变色或挥发等现象,因此不用对光学性能产生影响,而所述压片22完全收容在所述护套21内,所述护套21的侧壁212能够抵挡光源光线对压片22的照射,从而避免了光线直接照射在压片22上导致的变色或挥发等问题,使得所述光学镜片固定装置的光学性能好,可靠性高。
本实用新型同时还提供一种光学投影系统(未图示),包括本实用新型提供的所述的光学镜片固定装置100和固定于所述光学镜片固定装置100的所述光学镜片3。
与现有技术相比,本实用新型的光学镜片固定装置及光学投影系统中,通过设置铝制材料制成的护套将用于夹持固定光学镜片的压片形成包裹并固定,且二者形成一体共同固定于光学镜片支架,从而避免杂光直接照射所述压片,而所述护套因铝制材料制成,在光线照射下无变色或挥发等现象发生,使得所述光学镜片固定装置及光学投影系统光学性能好、可靠性及稳定性高。
需要说明的是,以上参照附图所描述的各个实施例仅用以说明本实用新型而非限制本实用新型的范围,本领域的普通技术人员应当理解,在不脱离本实用新型的精神和范围的前提下对本实用新型进行的修改或者等同替换,均应涵盖在本实用新型的范围之内。此外,除上下文另有所指外,以单数形式出现的词包括复数形式,反之亦然。另外,除非特别说明,那么任何实施例的全部或一部分可结合任何其它实施例的全部或一部分来使用。

Claims (10)

1、一种光学镜片固定装置,包括用于支撑光学镜片的光学镜片支架和将光学镜片固定于所述光学镜片支架的压片护套组件,其特征在于,所述压片护套组件包括护套和压片,所述护套固定在所述光学镜片支架上,所述护套内开设收容凹槽,所述压片固定并收容于所述收容凹槽内且所述压片和所述护套共同夹持所述镜片。
2、根据权利要求1所述的光学镜片固定装置,其特征在于,所述护套包括底壁和设置在所述底壁两侧的侧壁,所述底壁和两个所述侧壁共同围成所述收容凹槽,所述压片固定在所述底壁上。
3、根据权利要求2所述的光学镜片固定装置,其特征在于,所述底壁上开有安装孔,所述压片上开有固定孔,所述光学镜片固定装置进一步包括第一固定件,所述第一固定件穿过所述安装孔和所述固定孔将所述光学镜片固定在所述底壁上。
4、根据权利要求3所述的光学镜片固定装置,其特征在于,所述压片包括依次连接的第一配合部、第二配合部及第三配合部,所述固定孔开设于所述第一配合部上;所述第二配合部与所述第一配合部呈倒L形状设置,并朝向所述底壁的方向延伸;所述第三配合部连接在所述第二配合部的相对所述第一配合部的一端。
5、根据权利要求1所述的光学镜片固定装置,其特征在于,所述光学镜片支架包括主体部和由所述主体部延伸的相互间隔设置的两个支撑柱,所述护套数量为两个,两个所述护套分别对应固定在两个所述支撑柱上。
6、根据权利要求5所述的光学镜片固定装置,其特征在于,所述光学镜片固定装置进一步包括第二固定件,所述第二固定件穿过所述护套和所述支撑柱以将所述护套固定在所述支撑柱上。
7、根据权利要求5所述的光学镜片固定装置,其特征在于,所述光学镜片支架还包括由所述主体部延伸的连接两个所述支撑柱的限位部,所述限位部上设有用于卡持光学镜片的限位槽。
8、根据权利要求7所述的光学镜片固定装置,其特征在于,所述主体部、所述支撑柱及所述限位部为一体成型结构。
9、根据权利要求1所述的光学镜片固定装置,其特征在于,所述护套由不锈钢制成,所述压片由铝制成。
10、一种光学投影系统,其特征在于,包括如权利要求1~9任意一项所述的光学镜片固定装置和固定于所述光学镜片支架上的光学镜片。
 
 
PCT/CN2018/074758 2017-07-31 2018-01-31 光学镜片固定装置及光学投影系统 WO2019024473A1 (zh)

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