WO2018107762A1 - 一种光学元件固定机构及投影设备 - Google Patents

一种光学元件固定机构及投影设备 Download PDF

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Publication number
WO2018107762A1
WO2018107762A1 PCT/CN2017/094806 CN2017094806W WO2018107762A1 WO 2018107762 A1 WO2018107762 A1 WO 2018107762A1 CN 2017094806 W CN2017094806 W CN 2017094806W WO 2018107762 A1 WO2018107762 A1 WO 2018107762A1
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WO
WIPO (PCT)
Prior art keywords
optical component
mounting plate
fixing mechanism
planar optical
optical element
Prior art date
Application number
PCT/CN2017/094806
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
Publication of WO2018107762A1 publication Critical patent/WO2018107762A1/zh

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Classifications

    • 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
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam

Definitions

  • the utility model relates to the technical field of manufacturing a flat component fixing mechanism, in particular to an optical component fixing mechanism and a projection device.
  • the mirror is fixed by a mirror holder, and the mirror holder has a mirror mounting surface.
  • the mirror mounting surface is bonded to the mirror on the front side, and is glued or glued to the double-sided tape. In the way, after the dispensing or pasting, the baking process needs to be added to ensure the mirror is firmly bonded.
  • One of the objects of the present invention is to provide an optical component fixing mechanism so as to improve the convenience of mounting and replacing a planar optical component.
  • Another object of the present invention is to provide a projection apparatus having the above-described optical element fixing mechanism.
  • an optical component fixing mechanism disclosed in the present invention includes a mounting panel, which further includes a plurality of engaging portions disposed on a mounting plate surface, the mounting plate surface for supporting the planar optical component, and a plurality of The snap-fit portion has a one-to-one corresponding elastic snap, and the elastic snap-fit is detachably engaged with the corresponding snap-fit portion thereof, and the planar optical component is pressed against the mounting plate surface.
  • the engaging portion is a supporting protrusion for supporting the planar optical element, and the supporting end faces of the plurality of supporting protrusions are all located in the same plane, and the plurality of elastic buckles press the planar optical element against the plurality of supporting protrusions on.
  • the optical component fixing mechanism further includes: a limiting buckle disposed on an edge of the mounting plate surface, the limiting buckle is used for limiting the edge of the planar optical component to limit the planar optical component at the top end of the supporting protrusion Move in the plane at the place.
  • the elastic buckle has an open-shaped trapezoidal cross section, and the trapezoidal lower bottom is a horizontal plate.
  • the two clamped side plates connected to the horizontal plate form two trapezoidal waists, and the trapezoidal upper bottom is a clamped opening.
  • planar optical component and the mounting plate surface are both rectangular, and the limit buckles are respectively disposed on the two opposite sides of the mounting plate surface.
  • the engaging portion is a first protrusion or a first groove
  • the plurality of elastic buckles are respectively provided with a second groove or a second protrusion correspondingly engaged with the first protrusion or the first groove.
  • planar optical component and the mounting plate surface are both rectangular, and a pair of limiting flanges are oppositely disposed at a pair of rectangular edge edges of the mounting plate surface, and the limiting flange is used for limiting the edge of the planar optical component.
  • the first protrusion or first groove is disposed at another pair of rectangular edge edges proximate the mounting plate face.
  • the elastic buckle has an open-shaped trapezoidal cross section, the trapezoidal lower bottom is a horizontal plate, and the two clamped side plates connected to the horizontal plate form two trapezoidal waists, and the trapezoidal upper bottom is a clamped opening.
  • a side of one of the first side grooves of the clamping side plate facing the mounting plate surface is provided with a second protrusion.
  • edge of the mounting plate surface is provided with a notch corresponding to each of the first grooves, and the horizontal plates of each elastic buckle are inserted into the corresponding notches.
  • the number of the support protrusions, or the first protrusions or the first grooves is three.
  • one end of the clip-on side plate of the elastic snap forming the clip opening is further provided with a protective bead, or the other of the elastic clips is different from the clipped side panel provided with the second recess or the second protrusion
  • One end of a clipped side panel is provided with a protective bead.
  • the present invention also discloses a projection apparatus including an optical element fixing mechanism, which is the optical element fixing mechanism disclosed in any one of the above.
  • the planar optical element is a mirror.
  • the optical component fixing mechanism disclosed in the present invention includes a mounting plate surface for supporting a planar optical component, and a plurality of engaging portions are disposed on the mounting plate surface. Providing a plurality of elastic buckles in one-to-one correspondence with the plurality of snap-in portions, the elastic buckles detachably engaging the corresponding snap-fit portions thereof, and pressing the planar optical components against the mounting On the board.
  • the optical element fixing mechanism disclosed in the present invention changes the fixing manner of the planar optical element from the bonding to the detachable connection, so that during the installation process, between the planar optical component and the mounting plate surface No adhesion occurs, the two can freely move relative to each other, which facilitates the positional adjustment of the planar optical component during installation; and since the planar optical component is detachably connected to the mounting surface, once the planar optical component is damaged or fails, It can be easily replaced.
  • FIG. 1 is a partial structural schematic view of an embodiment of an optical component fixing mechanism disclosed in an embodiment of the present invention
  • FIG. 2 is a schematic view showing an installation process of an optical component fixing mechanism and a planar optical component according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of an embodiment of an optical component fixing mechanism and a planar optical component after installation according to an embodiment of the present invention
  • FIG. 4 is a partial structural schematic view of another embodiment of an optical component fixing mechanism disclosed in the embodiment of the present invention.
  • FIG. 5 is a schematic view showing a mounting process of another embodiment of an optical component fixing mechanism and a planar optical component disclosed in the embodiment of the present invention
  • FIG. 6 is a schematic structural view of another embodiment of an optical component fixing mechanism and a planar optical component after the embodiment of the present invention is installed;
  • 1 is the mounting plate surface
  • 2 is the support protrusion
  • 3 is the limit buckle
  • 4 is the elastic buckle
  • 5 is the plane optical component
  • 10 is the mounting plate surface
  • 11 is the first groove
  • 12 is the limit flange
  • 13 is the notch
  • 20 is the elastic buckle
  • 21 is the second protrusion
  • 22 is the clamping side plate
  • 23 is the horizontal plate
  • 24 is Protective crimping
  • 30 is a flat optical component.
  • One of the cores of the present invention is to provide an optical component securing mechanism to improve the ease of installation and replacement of planar optical components.
  • Another core of the present invention is to provide a projection apparatus using the above-described optical element fixing mechanism.
  • the optical component fixing mechanism disclosed in the present invention comprises a mounting plate surface, a plurality of engaging portions disposed on the mounting plate surface, and the mounting plate surface is for supporting the planar optical component.
  • the optical component fixing mechanism further includes a plurality of elastic buckles corresponding to the latching portions, the elastic latches detachably engaging with the corresponding latching portions thereof, and pressing the planar optical components against the mounting plate surface.
  • the optical element fixing mechanism disclosed in the above embodiment changes the fixing manner of the planar optical element from the bonding to the detachable connection, so that during the mounting process, between the planar optical component and the mounting plate surface No adhesion occurs, the two can freely move relative to each other, which facilitates the positional adjustment of the planar optical component during installation; and since the planar optical component is detachably connected to the mounting surface, once the planar optical component is damaged or fails, It can be easily replaced.
  • the implementation of the detachable connection between the planar optical component 5 and the mounting surface is not limited to one. In one possible manner, it can be realized by a screw provided on the mounting surface 1 .
  • the flat optical element 5 is squeezed by the end of the screw and the mounting plate surface 1.
  • FIG. 1 is a partial structural diagram of an embodiment of an optical component fixing mechanism disclosed in an embodiment of the present invention
  • FIG. 2 is an implementation of an optical component fixing mechanism disclosed in the embodiment of the present invention
  • FIG. 3 is a schematic view showing the structure of an optical component fixing mechanism and a planar optical component after the installation of the optical component is disclosed in the embodiment of the present invention.
  • the engaging portion in the optical component fixing mechanism disclosed in the embodiment is a supporting protrusion 2 disposed on the mounting plate surface for supporting the planar optical component, and the plurality of supports
  • the support end faces of the protrusions 2 are all located in the same plane, and the plurality of elastic snaps 4 press the planar optical elements against the plurality of support protrusions.
  • the support protrusions 2 comprise more than three, and in this case, the support protrusions 2 are not allowed to be all in a straight line to ensure stable support of the planar optical element 5, the elastic buckle 4 will be a planar optical element It is pressed and limited to the support protrusion 2.
  • the optical component fixing mechanism disclosed in this embodiment further improves the support mode of the planar optical component, and the support mode of the planar optical component is changed from the original planar support to the point support, and the support protrusions and the planar optical component are ensured.
  • the contact only needs to ensure that the heights of the support protrusions are equal. Compared with the planar processing of a large plane, it is easier to ensure the height of the support protrusions is equal, and the processing cost and the processing difficulty are also significantly reduced.
  • the support protrusion 2 specifically includes three, and three support protrusions 2 are disposed on the mounting plate surface 1 to support the surface of the planar optical element 5,
  • the connecting lines of the supporting protrusions 2 form a triangle, that is, the three supporting protrusions 2 are not collinear, and the supporting end faces of the three supporting protrusions 2 are all located in the same plane, and the elastic snaps function to planar the optical element 5 It is pressed and restrained on the support protrusion 2 to ensure stable installation of the planar optical element 5 on the optical element fixing mechanism.
  • the optical component fixing mechanism disclosed in the above embodiments only needs to ensure that the supporting end faces of the three supporting protrusions 2 are located in the same plane, regardless of whether the machining method or the punching method is used. The whole process of processing the entire surface is simple and fast, while the flatness is easy to guarantee and the cost is significantly reduced.
  • the support protrusion 2 can be directly connected to the mounting plate surface 1, as shown in FIG. 1 to FIG. 3, or can be indirectly connected to the mounting plate surface 1, for example, the protrusion is first disposed on the mounting plate surface 1.
  • the above-mentioned support protrusions 2 are then disposed on the bosses, and the number of the bosses is not limited, and may be the same as the number of the support protrusions 2, or may be more or less than the number of the support protrusions 2, for example Three support protrusions 2 are arranged on the two bosses.
  • the support protrusions 2 are not provided on the bosses, the bumps themselves will be in contact with the planar optical elements, and the so-called support protrusions 2 are formed. .
  • the optical component fixing mechanism further includes a limiting buckle 3 disposed on the edge of the mounting plate surface 1 to restrict the movement of the planar optical component 5 along the mounting plate surface 1.
  • the elastic buckle 4 has an open trapezoidal cross section, and the trapezoidal lower bottom is a horizontal plate. As shown in FIG. 2, the two clamped side plates connected to the horizontal plate form two trapezoidal waists, and the trapezoidal upper bottom is Clip the opening. It should be noted that in the present embodiment, the trapezoidal upper bottom refers to the shorter one of the two sides parallel to each other, and the lower bottom refers to the longer one of the two sides parallel to each other. Further, when each of the support protrusions 2 is formed by, for example, pressing the mounting plate surface 1, the corresponding surface is formed on the other side of the mounting plate surface 1 opposite to the side on which the support protrusions 2 are formed, and the elastic buckle is formed.
  • the elastic buckle 4 stably presses the planar optical element 1 against the support projection of the mounting plate surface to achieve good fixing of the planar optical element 1.
  • a protective bead is also provided at one end of the clip side panel of the elastic buckle 4 forming the clip opening, as shown in FIG.
  • the clipping side plate can be prevented from scratching the planar optical element 5, and on the other hand, the clamping side plate can be effectively prevented from injuring the installer. It can be seen that one of the protective beads can be inserted into the recess of the mounting plate surface 1 as the free end of one of the above-mentioned clip side plates.
  • planar optical element 5 has various shapes, and may be circular, polygonal, or the like according to a specific product.
  • the planar optical element 5 and the mounting surface 1 of the embodiment are rectangular, such as As shown in FIGS. 1 to 3, the limit buckles 3 are respectively disposed on the two opposite sides of the mounting plate surface 1, that is, on the four sides, to restrict the movement of the planar optical member 5 along the mounting plate surface 1.
  • the mounting plate surface 1 and the support protrusions 2 disposed thereon can be formed by various processing methods, such as machining, casting, etc., in consideration of production cost, in the optical element fixing mechanism disclosed in the embodiment, installation
  • the plate surface 1 and the support protrusions 2 disposed thereon are all press-formed.
  • the limit buckles are also stamped and formed together with the support protrusions 2.
  • the area of the triangle formed by the line connecting the centers of the support protrusions 2 in this embodiment is not less than One third of the area of the panel surface is mounted.
  • the planar optical element 5 in the present invention generally refers to a member that has a flat shape and needs to be fixed, such as a mirror, a battery panel, and the like.
  • FIG. 4 is a partial structural diagram of another embodiment of the optical component fixing mechanism disclosed in the embodiment of the present invention
  • FIG. 5 is another optical component fixed according to the embodiment of the present invention. Schematic diagram of the mounting process of the mechanism embodiment and the planar optical component.
  • FIG. 3 is a schematic structural view of another embodiment of the optical component fixing mechanism and the planar optical component after the embodiment of the present invention is installed.
  • the optical component fixing mechanism disclosed in the embodiment includes a mounting plate surface 10 and a plurality of clamping plates disposed on the mounting plate surface 10 .
  • the mounting plate 10 is for supporting the planar optical component 30; the plurality of elastic snaps 20 corresponding to the latching portions, the elastic latch 20 detachably engaging with the corresponding snapping portion thereof, and the plane The optical element 30 is pressed against the mounting plate face 10.
  • the engaging portion of the optical component fixing mechanism is a first protrusion or a first groove 11 disposed on the mounting plate surface 10, and correspondingly, the plurality of elastic buckles 20 are respectively provided with the first protrusion or the first
  • the groove 11 corresponds to the second groove or the second protrusion 21 that is engaged, that is, when the engaging portion is disposed as the first protrusion, the elastic buckle 20 is provided with a second groove that is engaged with the first protrusion.
  • the elastic latch 20 is provided with the second protrusion 21 that is engaged with the first recess 11 , and the elastic snap 20 can be effectively avoided by the mutual cooperation of the recess and the protrusion.
  • Accidental disengagement or displacement from the mounting plate 10 ensures that the resilient snap 20 securely presses the planar optical element 30 against the mounting plate face 10, causing the planar optical component 30 to be resiliently removably secured to the resilient snap 20 and mounted Between the panels 10 .
  • planar optical element 30 and the mounting plate surface 10 in this embodiment are each rectangular, as shown in FIGS. 4 to 6, a pair of rectangular edge edges of the mounting plate 10 such as a rectangular short side.
  • a pair of limiting flanges 12 are oppositely disposed.
  • the limiting flanges 12 are formed by stamping a pair of edges of the mounting plate surface 10, and the limiting flanges 12 are used to perform the edges of the planar optical member 30.
  • each of the limiting flanges 12 functions to limit the planar optical element 30 in the X direction, and each of the elastic buckles 20 passes through the first recess 11 of the second protrusion 21 to face the planar optical element in the Y direction. 30 limit and fixed action, therefore, the positioning and fixing of the planar optical element 30 on the mounting plane of the mounting plate surface 30 is achieved.
  • the elastic buckle 20 has an open-shaped trapezoidal cross section, and the trapezoidal lower bottom is a horizontal plate 23. As shown in FIG. 5, the two clamped side plates 22 connected to the horizontal plate 23 are formed. The two waists of the trapezoid, the upper base of the trapezoid is the clip opening.
  • the so-called trapezoidal upper bottom refers to the shorter one of the two sides parallel to each other, and the lower bottom refers to the longer one of the two sides parallel to each other.
  • the engaging portion on the mounting plate surface 10 is set as the first groove 11, in which case one of the sandwiching side plates 22 faces the first groove 11
  • the second protrusion 21 is disposed on the side, and the first groove 11 and the second protrusion 21 are preferably respectively disposed through the circular hole and the protruding post, and the through hole has an interference fit with the protrusion, wherein the through hole can pass through
  • the mounting plate 10 is formed by separate stamping, and the studs can be formed by stamping the formed side plates 22.
  • the number of the first protrusions or the first recesses 11 provided on the mounting plate surface 10 is set to three or more, and it is known that, correspondingly, the first protrusions or the first protrusions are provided.
  • the plurality of elastic snaps 20 of the groove 11 corresponding to the second groove or the second protrusion 21 that are engaged are set to be three or more, and in this case, The first projections or first recesses 11 are not all in a straight line to ensure stable support of the planar optical element 30, and the resilient snaps 204 compress the planar optical element 30 and are limited to the mounting plate face 10.
  • the through hole as the first groove 11 specifically includes three, three through holes are provided on the mounting plate surface 10, and a plane of the mounting plate surface 10 is provided.
  • the plate surface supports a plane of the planar optical element 30, and the three through-hole connecting lines form a triangle, that is, the three through-holes are not collinear, and the elastic buckle 20 functions to press the planar optical element 30 and limit it.
  • a plane of the planar optical component 30 and a surface of the mounting board surface 10 are surface-fitted to ensure that the planar optical component 30 is stable on the optical component fixing mechanism. installation. It will be readily understood that three points can define a plane, so that the three non-collinear elastic snaps 20 can be detachably secured to the planar optical element 30.
  • a notch 13 is formed on the edge of the mounting plate 10 corresponding to each of the first recesses 11 , and the transverse plate 23 of each elastic buckle 20 is inserted into the corresponding notch 13 .
  • the horizontal plate 23 of the elastic buckle 20 is inserted into the corresponding notch 13 to facilitate the restriction of the displacement of the elastic buckle 20, ensure the good fixation of the elastic buckle 20 to the planar optical component 30, and reduce the elastic buckle.
  • the space occupied by 20 makes the optical component fixing mechanism compact overall.
  • the other embodiment of the elastic buckle 20 is also distinguished from the other side wall 22 of the clip side panel 22 in which the second recess or the second protrusion 21 is disposed.
  • the protective bead 24 is provided at one end, so that the clipping side plate 22 can be prevented from scratching the planar optical member 30, and the clamping side plate 22 can be effectively prevented from injuring the installer.
  • the present invention also discloses a projection apparatus having the optical element fixing mechanism disclosed in any of the above embodiments.
  • the projection device has the corresponding technical advantages of the above-mentioned optical component fixing mechanism, and details are not described herein.
  • the projection device includes a plurality of planar optical components, such as a mirror. It is obvious that after the mirror is fixed by the optical component fixing mechanism, the same technical effects as in the above embodiments are obtained. This is not repeated here.
  • optical component fixing mechanism disclosed in the present invention not only has low production cost, but also is easier to ensure flatness, and has higher installation efficiency and mounting precision.

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

Abstract

一种光学元件固定机构，包括安装板面（1），还包括：多个设置在安装板面（1）上的卡接部，安装板面（1）用于支撑平面光学元件（5）；多个与卡接部一一对应的弹性卡扣（20），弹性卡扣（20）可拆卸地与其自身所对应的卡接部配合，并将平面光学元件（5）压紧在安装板面（1）上。一种投影设备，包括这种光学元件固定结构。这种光学元件固定机构对平面光学元件的固定方式由粘接变为了可拆卸连接，因而在安装的过程中，平面光学元件与安装板面之间不会发生粘连，两者可以自由进行相对移动，这就方便了平面光学元件在安装时的位置调整；另外由于平面光学元件与安装板面为可拆卸连接，因此一旦平板状部件损坏或失效，可以方便地进行更换。

Description

一种光学元件固定机构及投影设备 技术领域
本实用新型涉及平板状部件固定机构制造技术领域，特别涉及一种光学元件固定机构及投影设备。
背景技术
在多种生活场合以及工业场合中，均需要对平板状构件进行固定，例如在光机光源类产品中，就需要大量使用到反射镜。
目前反射镜是通过反射镜支座来进行固定的，反射镜支座上有一个反射镜安装面，该反射镜安装面是正面与反射镜粘接，粘接通过点胶或者粘贴双面胶的方式实现，完成点胶或粘贴后还需增加烘烤工序，以保证反射镜粘接牢固。
 技术问题
粘接方式所带来的缺点非常明显，在安装过程中对于未安装到位的反射镜进行位置调整非常困难，并且在使用过程中无法对损坏或者失效的反射镜进行更换。
因此，如何能够提高平面光学元件的安装以及更换的便利性是目前本领域技术人员亟需解决的技术问题。
 技术解决方案
本实用新型的目的之一是提供一种光学元件固定机构，以便能够提高平面光学元件的安装和更换的便利性。
本实用新型的另一目的还在于提供一种具有上述光学元件固定机构的投影设备。
为达到上述目的，本实用新型中所公开的光学元件固定机构包括安装面板，其还包括多个设置在安装板面上的卡接部，安装板面用于支撑平面光学元件；以及多个与卡接部一一对应的弹性卡扣，弹性卡扣可拆卸地与其自身所对应的卡接部配合，并将平面光学元件压紧在安装板面上。
优选的，卡接部为用于支撑平面光学元件的支撑凸起，且多个支撑凸起的支撑端面均位于同一平面内，多个弹性卡扣将平面光学元件压紧在多个支撑凸起上。
进一步的，光学元件固定机构还包括：设置在安装板面的边缘上的限位扣，限位扣用于对平面光学元件的边缘进行限位，以限制平面光学元件在支撑凸起的顶端所处的平面内移动。
进一步的，弹性卡扣的横截面呈开口状梯形，梯形的下底为横板，与横板相连的两个夹装侧板形成梯形的两个腰，梯形的上底为夹装开口。
进一步的，平面光学元件以及安装板面均呈矩形，限位扣分别设置在安装板面的两对边上。
优选的，卡接部为第一突起或第一凹槽，多个弹性卡扣分别设有与第一突起或第一凹槽对应卡接的第二凹槽或第二突起。
进一步的，平面光学元件以及安装板面均呈矩形，在安装板面的一对矩形边边缘处相对地设置一对限位凸缘，限位凸缘用于对平面光学元件的边缘进行限位，以限制平面光学元件在安装板面所处的平面内移动，第一突起或第一凹槽设置在接近安装板面的另一对矩形边边缘处。
进一步的，弹性卡扣的横截面呈开口状梯形，梯形的下底为横板，与横板相连的两个夹装侧板形成梯形的两个腰，梯形的上底为夹装开口，在其中一个夹装侧板面向安装板面设有的第一凹槽的一侧设有第二突起。
进一步的，安装板面的边缘对应于各第一凹槽均设有一缺口，各弹性卡扣的横板插接于对应的缺口中。
再进一步的，支撑凸起、或者第一突起或第一凹槽的个数为三个。
再进一步的，弹性卡扣的夹装侧板形成夹装开口的一端还设置有防护卷边，或者在弹性卡扣的区别于设置了第二凹槽或第二突起的夹装侧板的另一个夹装侧板的一端设置有防护卷边。
本实用新型还公开了一种投影设备，包括光学元件固定机构，所述光学元件固定机构为上述任意一项所公开的光学元件固定机构。
优选的，所述平面光学元件为反射镜。
本实用新型中所公开的光学元件固定机构中，包括安装板面，所述安装板面用于支撑平面光学元件，在所述安装板面上设置多个卡接部。与多个卡接部一一对应地设置多个弹性卡扣，所述弹性卡扣可拆卸地与其自身所对应的所述卡接部配合，并将所述平面光学元件压紧在所述安装板面上。
 有益效果
相比于现有技术，本实用新型中所公开的光学元件固定机构对平面光学元件的固定方式由粘接变为了可拆卸连接，因而在安装的过程中，平面光学元件与安装板面之间不会发生粘连，两者可以自由进行相对移动，这就方便了平面光学元件在安装时的位置调整；另外由于平面光学元件与安装板面为可拆卸连接，因此一旦平面光学元件损坏或失效，可以方便的进行更换。
 附图说明
图1为本实用新型实施例中所公开的一光学元件固定机构实施例的部分结构示意图；
图2为本实用新型实施例中所公开的一光学元件固定机构实施例与平面光学元件的安装过程示意图；
图3为本实用新型实施例中所公开的一光学元件固定机构实施例与平面光学元件安装完成后的结构示意图；
图4为本实用新型实施例中所公开的另一光学元件固定机构实施例的部分结构示意图；
图5为本实用新型实施例中所公开的另一光学元件固定机构实施例与平面光学元件的安装过程示意图；
图6为本实用新型实施例中所公开的另一光学元件固定机构实施例与平面光学元件安装完成后的结构示意图；
其中，
1为安装板面，2为支撑凸起，3为限位扣，4为弹性卡扣，5为平面光学元件；
10为安装板面，11为第一凹槽，12为限位凸缘，13为缺口，20为弹性卡扣，21为第二突起，22为夹装侧板，23为横板，24为防护卷边，30为平面光学元件。
 本发明的最佳实施方式
本实用新型的核心之一是提供一种光学元件固定机构，以便能够提高平面光学元件的安装和更换的便利性。
本实用新型的另一核心是提供一种采用上述光学元件固定机构的投影设备。
为了使本技术领域的人员更好地理解本实用新型方案，下面结合附图和具体实施方式对本实用新型作进一步的详细说明。
本实用新型中所公开的光学元件固定机构，其包括安装板面、多个设置在安装板面上的卡接部，且安装板面用于支撑平面光学元件。光学元件固定机构还包括多个与卡接部一一对应的弹性卡扣，弹性卡扣可拆卸地与其自身所对应的卡接部配合，并将平面光学元件压紧在安装板面上。
相比于现有技术，上述实施例中所公开的光学元件固定机构对平面光学元件的固定方式由粘接变为了可拆卸连接，因而在安装的过程中，平面光学元件与安装板面之间不会发生粘连，两者可以自由进行相对移动，这就方便了平面光学元件在安装时的位置调整；另外由于平面光学元件与安装板面为可拆卸连接，因此一旦平面光学元件损坏或失效，可以方便的进行更换。
不难理解的是，能够将平面光学元件5与安装板面可拆卸连接的实现方式并不局限于一种，在一种可能的方式中，可以通过设置在安装板面1上的螺钉实现，平面光学元件5通过螺钉的端冒与安装板面1挤紧。
请参考图1至图3，图1为本实用新型实施例中所公开的一光学元件固定机构实施例的部分结构示意图，图2为本实用新型实施例中所公开的一光学元件固定机构实施例与平面光学元件的安装过程示意图，图3为本实用新型实施例中所公开的一光学元件固定机构实施例与平面光学元件安装完成后的结构示意图。
为了进一步优化上述一实施例中的技术方案，本实施例中所公开的光学元件固定机构中的卡接部为设置在安装板面用于支撑平面光学元件的支撑凸起2，且多个支撑凸起2的支撑端面均位于同一平面内，多个弹性卡扣4将平面光学元件压紧在多个支撑凸起上。优选的，支撑凸起2包括三个以上，并且在该种情况下，支撑凸起2不允许全部在一条直线上，以保证对平面光学元件5的稳定支撑，弹性卡扣4将平面光学元件压紧并限位于支撑凸起2上。
本实施例中所公开的光学元件固定机构进一步对平面光学元件的支撑方式进行了改进，平面光学元件的支撑方式由原来的平面支撑变为了点支撑，而要保证支撑凸起均与平面光学元件接触仅需保证支撑凸起的高度相等即可，相比于较大平面的平面加工而言，保证支撑凸起高度相等要更加容易，加工成本和加工难度也因此显著降低。
最为优选的方式，如图1至3中所示，支撑凸起2具体包括三个，三个支撑凸起2设置在安装板面1上，其作用在于支撑平面光学元件5的板面，三个支撑凸起2的连线形成三角形，意即三个支撑凸起2不共线，并且三个支撑凸起2的支撑端面均位于同一平面内，弹性卡扣的作用是将平面光学元件5压紧并限位在支撑凸起2上，以保证平面光学元件5在光学元件固定机构上稳定的安装。
容易理解的是，三点能够确定一个平面，因此三个支撑凸起2即可完成对于平面光学元件5整个平面的支撑，而弹性卡扣将平面光学元件5压紧并限位在支撑凸起2上之后可以保持平面光学元件5的安装稳定性。相比于现有技术，上述实施例中所公开的光学元件固定机构仅需保证三个支撑凸起2的支撑端面位于同一平面内即可，无论采用机加工方式还是冲压方式，均比现有技术中加工整个面要简便快捷，同时平面度容易保证，而且成本显著降低。
需要进行说明的是，支撑凸起2可以直接与安装板面1相连，如图1至图3中所示，也可间接与安装板面1相连，例如先设置凸起于安装板面1上的凸墩，然后在凸墩上设置上述支撑凸起2，凸墩的数量将不受限制，可以与支撑凸起2的数量相同，也可多于或少于支撑凸起2的数量，例如在两个凸墩上设置3个支撑凸起2，当然，若凸墩上未设置支撑凸起2，那么凸墩本身将会与平面光学元件接触，凸墩就形成了所谓的支撑凸起2。
在本实施例中，光学元件固定机构还包括限位扣3，限位扣3设置在安装板面1的边缘上，其作用在于限制平面光学元件5沿安装板面1进行移动。
弹性卡扣4的横截面呈开口状梯形，梯形的下底为横板，如图2中所示，与横板相连的两个夹装侧板形成梯形的两个腰，梯形的上底为夹装开口。需要进行说明的是，在本实施例中，所谓梯形的上底是指梯形相互平行的两个边中较短的一边，而下底是指梯形相互平行的两个边中较长的一边。进一步来说，在各个支撑凸起2由例如采用对安装板面1冲压方式而形成时，在安装板面1与形成支撑凸起2的一面相对的另一面将形成对应的凹陷，弹性卡扣4的其中一个夹装侧板的自由端将插接于该凹陷中，该凹陷有利于限制上述夹装侧板的移位，另一个夹装侧板的自由端弹性卡压在平面光学元件1，从而弹性卡扣4稳定地将平面光学元件1压紧在安装板面的支撑凸起上实现对平面光学元件1的良好固定。
为了进一步优化上述实施例中的技术方案，本实施例中还在弹性卡扣4的夹装侧板形成夹装开口的一端设置有防护卷边，如图2中所示，防护卷边一方面可以防止夹装侧板对平面光学元件5划伤，另一方面能够有效避免夹装侧板对安装人员造成伤害。可知的是，其中一个防护卷边可作为上述其中一个夹装侧板的自由端而插接于安装板面1的凹陷中。
需要进行说明的是，平面光学元件5的外形多种多样，根据具体产品的不同，其可能为圆形、多边形等，本实施例中的平面光学元件5以及安装板面1均呈矩形，如图1至图3中所示，限位扣3分别设置在安装板面1的两对边上，即四个边上，以限制平面光学元件5沿安装板面1移动。
事实上，安装板面1以及其上设置的支撑凸起2可以采用多种加工方式形成，例如机加工、铸造等，考虑到生产成本，本实施例中所公开的光学元件固定机构中，安装板面1以及设置在其上的支撑凸起2均为冲压成型，进一步的，限位扣也是与支撑凸起2一起冲压成型的。
为了保证支撑凸起2对平面光学元件5的整个板面进行有效支撑，当支撑凸起2为三个时，本实施例中的支撑凸起2中心的连线所形成的三角形的面积不小于安装板面1面积的三分之一，当然，支撑凸起2连线所形成的三角形的面积越大，那么支撑凸起2对平面光学元件5的支撑也就越稳定。本实用新型中的平面光学元件5泛指外形为平板状并且需要进行固定的部件，例如反射镜、电池板等。
请参考图4至图6，图4为本实用新型实施例中所公开的另一光学元件固定机构实施例的部分结构示意图，图5为本实用新型实施例中所公开的另一光学元件固定机构实施例与平面光学元件的安装过程示意图，图3为本实用新型实施例中所公开的另一光学元件固定机构实施例与平面光学元件安装完成后的结构示意图。
以下对另一光学元件固定机构实施例做详细说明，参照图4至图6，本实施例中所公开的光学元件固定机构包括安装板面10、多个设置在安装板面10上的卡接部，且安装板面10用于支撑平面光学元件30；多个与卡接部一一对应的弹性卡扣20，弹性卡扣20可拆卸地与其自身所对应的卡接部配合，并将平面光学元件30压紧在安装板面10上。具体来说，光学元件固定机构的卡接部为设置在安装板面10上的第一突起或第一凹槽11，相应的，多个弹性卡扣20分别设有与第一突起或第一凹槽11对应卡接的第二凹槽或第二突起21，也就是说，当卡接部设置成第一突起时，弹性卡扣20设有与第一突起卡接的第二凹槽，而当卡接部设置成第一凹槽11时，弹性卡扣20设有与第一凹槽11卡接的第二突起21，通过凹槽与突起的相互配合，可以有效避免弹性卡扣20与安装板面10的意外脱离或移位，保证弹性卡扣20将平面光学元件30稳定地压紧在安装板面10上，使平面光学元件30弹性可拆卸地固定在弹性卡扣20和安装板面10之间。
需要进行说明的是，本实施例中的平面光学元件30以及安装板面10均呈矩形，如图4至图6中所示，在安装板面10的一对例如矩形短边的矩形边边缘处相对地设置一对限位凸缘12，优选的，限位凸缘12通过对安装板面10的一对边缘通过冲压而成型，限位凸缘12用于对平面光学元件30的边缘进行限位，以限制平面光学元件30在安装板面10所处的平面内移动，相应的，第一突起或第一凹槽11设置在接近安装板面10的另一对例如矩形长边的矩形边边缘处。如此的话，各限位凸缘12起到在X方向对平面光学元件30限位的作用，各弹性卡扣20通过第二突起21的配合第一凹槽11起到在Y方向对平面光学元件30限位和固定的作用，因此，实现了对平面光学元件30在安装板面30的安装平面上的限位及固定。
本实施例中，进一步的，弹性卡扣20的横截面呈开口状梯形，梯形的下底为横板23，如图5中所示，与横板23相连的两个夹装侧板22形成梯形的两个腰，梯形的上底为夹装开口。需要进行说明的是，在本实施例中，所谓梯形的上底是指梯形相互平行的两个边中较短的一边，而下底是指梯形相互平行的两个边中较长的一边，并且，作为本实施例的具体实施方式，安装板面10上的卡接部设为第一凹槽11，在此种情况下，在其中一个夹装侧板22面向第一凹槽11的一侧设有第二突起21，该第一凹槽11和第二突起21优选地分别设为贯通圆孔及凸柱，且贯通圆孔与凸柱过盈配合，其中，贯通圆孔可通过对安装板面10的分离式冲压形成，凸柱可通过对夹装侧板22的成形式冲压形成。
优选的，在本实施例中，安装板面10上设置的第一突起或第一凹槽11的个数设为三个以上，可知的是，相应的，设有与第一突起或第一凹槽11对应卡接的第二凹槽或第二突起21的多个弹性卡扣20设为三个以上，并且在该种情况下， 第一突起或第一凹槽11不允许全部在一条直线上，以保证对平面光学元件30的稳定支撑，弹性卡扣204将平面光学元件30压紧并限位于安装板面10上。
最为优选的实施方式，如图4至6中所示，作为第一凹槽11的贯通圆孔具体包括三个，三个贯通圆孔设置在安装板面10上，安装板面10的一平面状板面支撑平面光学元件30的一平面，三个贯通圆孔的连线形成三角形，意即三个贯通圆孔不共线，弹性卡扣20的作用是将平面光学元件30压紧并限位在上述安装板面10的一板面上，平面光学元件30的一平面与上述安装板面10的一板面实现面面贴合，以保证平面光学元件30在光学元件固定机构上稳定的安装。容易理解的是，三点能够确定一个平面，因此三个不共线的弹性卡扣20即可完成对于平面光学元件30的可拆卸地固定。
作为进一步的改进，在安装板面10的边缘上对应于各第一凹槽11均设有一缺口13，各弹性卡扣20的横板23插接于对应的缺口13中。通过弹性卡扣20的横板23插接于对应的缺口13中，既利于限制弹性卡扣20的移位，保证弹性卡扣20对平面光学元件30的良好固定，又可以减小弹性卡扣20所占用的空间，使得光学元件固定机构整体结构紧凑。
为了进一步优化上述实施例中的技术方案，本实施例中还在弹性卡扣20的区别于设置了第二凹槽或第二突起21的夹装侧板22的另一个夹装侧板22的一端设置有防护卷边24，这样的话，既可以防止夹装侧板22对平面光学元件30划伤也能够有效避免夹装侧板22对安装人员造成伤害。
本实用新型中还公开了一种投影设备，该投影设备中具有上述任意一实施例中所公开的光学元件固定机构。
由于采用了上述光学元件固定机构，因此该投影设备兼具上述光学元件固定机构相应的技术优点，本文中对此不再进行赘述。
投影设备中包括多种平面光学元件，例如反射镜就是其中的一种，很明显，采用上述光学元件固定机构对反射镜进行固定后，会取得与上述各实施例中相同的技术效果，本申请文件中对此同样不再赘述。
由此可见，本实用新型中所公开的光学元件固定机构不仅生产成本低、而且平面度更容易保证，安装效率以及安装精度更高。
以上对本实用新型所提供的光学元件固定机构及投影设备进行了详细介绍。本文中应用了具体个例对本实用新型的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本实用新型的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本实用新型原理的前提下，还可以对本实用新型进行若干改进和修饰，这些改进和修饰也落入本实用新型权利要求的保护范围内。

Claims (13)

1、一种光学元件固定机构，包括安装板面，其特征在于，还包括：
多个设置在所述安装板面上的卡接部，所述安装板面用于支撑平面光学元件；
多个与所述卡接部一一对应的弹性卡扣，所述弹性卡扣可拆卸地与其自身所对应的所述卡接部配合，并将所述平面光学元件压紧在所述安装板面上。
2、根据权利要求1所述的光学元件固定机构，其特征在于，所述卡接部为用于支撑平面光学元件的支撑凸起，且多个所述支撑凸起的支撑端面均位于同一平面内，多个所述弹性卡扣将所述平面光学元件压紧在多个所述支撑凸起上。
3、根据权利要求2所述的光学元件固定机构，其特征在于，还包括：
设置在所述安装板面的边缘上的限位扣，所述限位扣用于对所述平面光学元件的边缘进行限位，以限制所述平面光学元件在所述支撑凸起的顶端所处的平面内移动。
4、根据权利要求2所述的光学元件固定机构，其特征在于，所述弹性卡扣的横截面呈开口状梯形，所述梯形的下底为横板，与所述横板相连的两个夹装侧板形成所述梯形的两个腰，所述梯形的上底为夹装开口。
5、根据权利要求3所述的光学元件固定机构，其特征在于，所述平面光学元件以及所述安装板面均呈矩形，所述限位扣分别设置在所述安装板面的两对边上。
6、根据权利要求1所述的光学元件固定机构，其特征在于，所述卡接部为第一突起或第一凹槽，多个所述弹性卡扣分别设有与所述第一突起或第一凹槽对应卡接的第二凹槽或第二突起。
7、根据权利要求6所述的光学元件固定机构，其特征在于，所述平面光学元件以及所述安装板面均呈矩形，在所述安装板面的一对矩形边边缘处相对地设置一对限位凸缘，所述限位凸缘用于对所述平面光学元件的边缘进行限位，以限制所述平面光学元件在所述安装板面所处的平面内移动，所述第一突起或所述第一凹槽设置在接近所述安装板面的另一对矩形边边缘处。
8、根据权利要求6所述的光学元件固定机构，其特征在于，所述弹性卡扣的横截面呈开口状梯形，所述梯形的下底为横板，与所述横板相连的两个夹装侧板形成所述梯形的两个腰，所述梯形的上底为夹装开口，在其中一个所述夹装侧板面向所述安装板面设有的所述第一凹槽的一侧设有所述第二突起。
9、根据权利要求8所述的光学元件固定机构，其特征在于，所述安装板面的边缘对应于各所述第一凹槽均设有一缺口，各所述弹性卡扣的横板插接于对应的所述缺口中。
10、根据权利要求2至9任一项所述的光学元件固定机构，其特征在于，所述支撑凸起、或者所述第一突起或所述第一凹槽的个数为三个。
11、根据权利要求4、8或9任一项所述的光学元件固定机构，其特征在于，所述弹性卡扣的夹装侧板形成所述夹装开口的一端还设置有防护卷边，或者在所述弹性卡扣的区别于设置了所述第二凹槽或所述第二突起的所述夹装侧板的另一个所述夹装侧板的一端设置有防护卷边。
12、一种投影设备，包括光学元件固定机构，其特征在于，所述光学元件固定机构为如权利要求1-11任意一项所述的光学元件固定机构。
13、根据权利要求12所述的投影设备，其特征在于，所述平面光学元件为反射镜。
PCT/CN2017/094806 2016-12-16 2017-07-28 一种光学元件固定机构及投影设备 WO2018107762A1 (zh)

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CN1940622A (zh) * 2005-09-27 2007-04-04 精碟科技股份有限公司 投影镜头组及其反射单元
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CN202443159U (zh) * 2012-02-14 2012-09-19 海信集团有限公司 反射镜调节结构
CN104111511A (zh) * 2014-07-07 2014-10-22 中国科学院上海光学精密机械研究所 平面薄板光学元件的夹具和装夹方法

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CN1940622A (zh) * 2005-09-27 2007-04-04 精碟科技股份有限公司 投影镜头组及其反射单元
US20080186606A1 (en) * 2007-02-02 2008-08-07 Mitsubishi Electric Corporation Projection television
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