WO2019085263A1 - 镜头移除机构及光学设备 - Google Patents

镜头移除机构及光学设备 Download PDF

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Publication number
WO2019085263A1
WO2019085263A1 PCT/CN2018/071437 CN2018071437W WO2019085263A1 WO 2019085263 A1 WO2019085263 A1 WO 2019085263A1 CN 2018071437 W CN2018071437 W CN 2018071437W WO 2019085263 A1 WO2019085263 A1 WO 2019085263A1
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WIPO (PCT)
Prior art keywords
link
lens
removing mechanism
transmission assembly
mechanism according
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/071437
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English (en)
French (fr)
Inventor
周正平
李屹
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Shenzhen Appotronics Corp Ltd
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Appotronics Corp Ltd
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Application filed by Appotronics Corp Ltd filed Critical Appotronics Corp Ltd
Publication of WO2019085263A1 publication Critical patent/WO2019085263A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably

Definitions

  • the present invention relates to the field of optics, and more particularly to a lens removal mechanism and an optical device using the lens removal mechanism.
  • the prior art lens removal mechanism usually requires the direction of action of the external force to be consistent with the disassembly direction of the lens, which is inconvenient to use and cannot be guaranteed.
  • the technical problem to be solved by the present invention is to provide a novel lens removing mechanism to solve the problem of inconvenient disassembly and low reliability in the prior art.
  • one technical solution adopted by the present invention is to provide a lens removing mechanism including a connecting frame and a transmission assembly detachably coupled to the lens, and the connecting frame is provided with a lens connecting portion, the transmission The assembly at least partially passes through the connecting portion, the transmission assembly including a first link and a second link that are interconnected and have an adjustable angle, the transmission assembly changing the first link and the second connection The angle between the rods transmits an external force to the transmission assembly to the connecting frame.
  • the first link and the second link are connected by a hinge.
  • the transmission assembly includes a bracket for accommodating the first link and the second link, and a slider disposed on the bracket to slide along an optical axis direction of the lens, the first link An end away from the second link abuts the slider and drives the slider to slide.
  • the lens removing mechanism applies an external force at a hinge connected to the first link and the second link, and is converted into a pushing force in the optical axis direction by the transmission assembly.
  • the transmission device further comprises an elastic returning member connected to the first connecting rod and/or the second connecting rod, the torsion spring driving the transmission device to return to an initial angle.
  • one end of the second link away from the first link is movably fixed to the bracket by a screw.
  • the second connecting rod is provided with a limiting portion for avoiding excessive force
  • the bracket is provided with a limiting slot matched with the limiting portion.
  • the torsion spring is disposed at a fixed end of the second link.
  • the connecting frame is a connecting plate provided with a through hole
  • the slider is at least partially disposed through the through hole
  • another technical solution adopted by the present invention is to provide an optical device including a lens and a lens removing mechanism as described above detachably coupled to the lens.
  • the present invention provides a lens removing mechanism for changing the angle between the first link and the second link.
  • the external force received is transmitted to the connecting frame.
  • the invention is convenient and reliable, the transmission is labor-saving, the structure is relatively simple, the assembly is convenient, the cost is low, and the utility is strong.
  • FIG. 1 is a schematic structural view of a lens of an optical device of the present invention
  • Figure 2 is an enlarged view of a portion A of Figure 1;
  • FIG. 3 is a schematic exploded view of the lens removing mechanism of the present invention.
  • the present invention provides a lens removing mechanism and an optical device using the lens removing mechanism to solve the problem of inconvenient disassembly and low reliability in the prior art.
  • 1 and 2 which is a schematic structural view of a lens portion of an optical device of the present invention, the optical device includes a housing 300, a lens 200 fixed to the housing 300, and a lens removing mechanism 100.
  • the lens removing mechanism 100 is located at a disassembly interface portion of the lens of the optical device, and includes a connecting frame and a transmission assembly detachably coupled to the lens 200, wherein the hook included in the lens 200 cooperates with the connecting end to hook, when the transmission component receives an external force
  • the thrust of the connecting frame is generated in the direction of the lens, the elastic piece is unlocked at the lens, and the lens is disassembled under the cooperation of the relevant auxiliary structure.
  • the connecting frame of the lens removing mechanism 100 is provided with a connecting frame 1. Further, the connecting frame 1 can be detachably connected with a transmission component or a fixed buckle on the lens 200, when the transmission component is stressed, The connecting frame 1 is pushed to move along the optical axis direction of the lens, thereby causing displacement of the transmission component or the fixed buckle of the lens 200.
  • the lens removal mechanism 100 also includes a bracket 2 for receiving a drive assembly.
  • the transmission assembly includes a first link 3 and a second link 4, one ends of the first link 3 and the second link 4 are hinged together such that an angle between the first link 3 and the second link 4 It can change with the action of external force.
  • an external force is applied to the hinge where the first link 3 and the second link 4 are connected during use.
  • the hinge is provided with a force receiving portion for receiving an external force, and the transmission assembly converts an external force received by the force receiving portion into a pushing force in the optical axis direction.
  • one end of the second link 4 away from the hinge is movably fixed to the bracket 2 by a screw 5.
  • the fixing manner of the second connecting rod 4 is not limited thereto, and other fixing manners such as snapping may be adopted as long as the second connecting rod 4 is fixed at one end and can be transmitted to the first connecting rod 3 through the hinge.
  • the realization of the force conversion can be implemented; in addition, the so-called first link and the second link do not specifically limit the structure of the component, in fact, it is not necessarily a rod shape, a plate shape, a sheet shape, Even a block shape, as long as it has a corresponding structure, can achieve the object of the present invention.
  • the transmission assembly further includes an elastic return member 6 for providing a torsional elastic force for restoring the first link 3 and the second link 4, and the first link 3 and the second link 4 are clamped after the force
  • an elastic return member 6 for providing a torsional elastic force for restoring the first link 3 and the second link 4, and the first link 3 and the second link 4 are clamped after the force
  • the elastic return member 6 is restored to the initial angle of the first link and the second link, that is, the angle between the first link and the second link facing the support direction under unstressed force, Automatic reset of the lens removal mechanism.
  • the elastic returning member 6 can be connected to the first connecting rod 3 or to the second connecting rod 4.
  • the elastic returning member 6 is disposed at the fixed end of the second connecting rod 4 and passes through The screw 5 is fitted to the bracket 2 and connected to the second link 4.
  • the elastic return member 6 is a torsion spring.
  • other structures may be employed, such as a spring connecting the first link and the second link, as long as the drive assembly can be reset. The elasticity used can be implemented.
  • the transmission assembly of the present invention is further provided with a slider 7 for cooperating with the connecting frame 1.
  • the connecting frame 1 is a connecting plate provided with a through hole.
  • the slider 7 is at least partially disposed through the through hole, and the slider can apply a force on the lens hook hooked to the through hole, so that the lens is disconnected from the connecting plate.
  • One end of the slider 7 away from the connecting plate abuts against the first link 3, and is slidable in the optical axis direction of the lens under the driving of the first link 3. Thereby, the force on the first link 3 is transmitted to the connecting frame 1 and transmitted to the lens 200.
  • the slider 7 is disposed near the first link 3 with a fixing slot 71 recessed away from the first link 3, and the side of the first link 3 away from the hinge is inserted into the fixing slot 71, and further passes through The latch 8 is fixed to further increase the interlocking of the first link 4 with the slider 7.
  • the second link 4 is further provided with a limiting portion 41 for avoiding excessive force.
  • the bracket 2 is provided with a limiting slot matched with the limiting portion 41.
  • the present invention also provides an optical apparatus including the above-described lens removing mechanism, which includes a projection apparatus such as a projector, a photographing apparatus such as a camera, a camera, or the like, and the lens removing mechanism 100 is located in the lens of the optical apparatus.
  • the interface part is disassembled, and includes a connecting frame and a transmission assembly detachably coupled to the lens 200.
  • the hook included in the lens 200 cooperates with the connecting end to be hooked.
  • the transmission component receives an external force
  • the connecting frame generates a thrust in the direction of the lens. Push the lens to unlock the shrapnel, and then disassemble the lens with the help of the relevant auxiliary structure.
  • the present invention provides a lens removing mechanism for changing the angle between the first link and the second link.
  • the external force received is transmitted to the connecting frame.
  • the invention is convenient and reliable, the transmission is labor-saving, the structure is relatively simple, the assembly is convenient, the cost is low, and the utility is strong.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Structure And Mechanism Of Cameras (AREA)

Abstract

一种镜头移除机构（100）和应用该镜头移除机构（100）的光学设备，镜头移除机构（100）包括与镜头（200）可拆卸连接的连接架（1）和传动组件，连接架（1）上设置有镜头连接部，传动组件至少部分地经过该连接部，传动组件包括相互连接且夹角可变化的第一连杆（3）和第二连杆（4），传动组件通过改变第一连杆（3）和第二连杆（4）之间的夹角将传动组件所受的外力传递到连接架（1）。该镜头移除机构（100）便捷可靠，传动省力，且结构比较简单，装配方便，成本较低，实用性强。

Description

镜头移除机构及光学设备 技术领域
本发明涉及光学领域，尤其是涉及一种镜头移除机构及使用该镜头移除机构的光学设备。
 
 背景技术
工程投影机镜头大多采用可更换式镜头，需要经常更换以便实现不同画面效果，拆卸传动装置的便捷和稳定显得尤为重要。
 技术问题
在镜头拆卸过程中，现有技术的镜头移除机构，通常需要外力的作用方向与镜头的拆卸方向一致，使用不方便且可靠性无法保证。
因此，实有必要提供一种新的镜头移除机构以及光学设备以解决上述问题。
 技术解决方案
本发明主要解决的技术问题是提供一种新型镜头移除机构，以解决现有技术中拆卸不便，可靠性不高的问题。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种镜头移除机构，包括与镜头可拆卸连接的连接架和传动组件，所述连接架上设置有镜头连接部，所述传动组件至少部分地经过该连接部，所述传动组件包括相互连接且夹角可变化的第一连杆和第二连杆，所述传动组件通过改变所述第一连杆和所述第二连杆之间的夹角将所述传动组件所受的外力传递到所述连接架。
优选的，所述第一连杆和所述第二连杆通过铰链连接。
优选的，所述传动组件包括容纳所述第一连杆和所述第二连杆的支架、以及设置在所述支架上可沿镜头的光轴方向滑动的滑块，所述第一连杆远离所述第二连杆的一端抵触所述滑块，并带动所述滑块滑动。
优选的，所述镜头移除机构在所述第一连杆和所述第二连杆相连的铰链处施加外力，通过所述传动组件转化为沿光轴方向的推动力。
优选的，5.所述传动装置还包括与所述第一连杆和/或所述第二连杆相连的弹性复位件，所述扭簧带动所述传动装置恢复到初始夹角。
优选的，所述第二连杆远离所述第一连杆的一端通过螺钉可活动固定在所述支架上。
优选的，所述第二连杆上设置有用于避免受力过度的限位部，所述支架上设置有与所述限位部相匹配的限位槽。
优选的，所述扭簧设置在所述第二连杆的固定端。
优选的，所述连接架为设置有通孔的连板，所述滑块至少部分穿过所述通孔设置。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一个光学设备，包括镜头，和与所述镜头可拆连接的如上所述的镜头移除机构。
 
 有益效果
本发明的有益效果是：区别于现有技术的情况，本发明提供一种镜头移除机构，通过改变所述第一连杆和所述第二连杆之间的夹角将所述传动组件所受的外力传递到所述连接架。此发明便捷可靠，传动省力，且结构比较简单、装配方便、成本较低，实用性强。
 
 附图说明
图1是本发明光学设备镜头的结构示意图；
图2是图1所述A部分的放大图；
图3是本发明镜头移除机构的分解结构示意图。
 
 本发明的实施方式
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。
本发明提供一种镜头移除机构及使用该镜头移除机构的光学设备以解决现有技术中拆卸不便，可靠性不高的问题。如图1和图2所示，为本发明光学设备的镜头部分的结构示意图，光学设备包括外壳300、固定在外壳300上的镜头200和镜头移除机构100。镜头移除机构100位于光学设备镜头的拆卸接口部位，包括与镜头200可拆卸连接的连接架和传动组件，其中镜头200包括的卡钩与连接端配合以钩接，当传动组件收到外力时会在连接架产生向镜头方向的推力，推动镜头处解锁弹片，然后在相关辅助结构的配合下实现镜头的拆卸。
如图3所示，镜头移除机构100的连接架上设置有连接架1，进一步的，连接架1可以与镜头200上的传动部件或固定搭扣可拆卸连接，当传动组件受力时，会推动连接架1沿镜头的光轴方向移动，从而带动镜头200的传动部件或固定搭扣产生位移。
镜头移除机构100还包括用于收容传动组件的支架2。传动组件包括第一连杆3和第二连杆4，第一连杆3和第二连杆4的一端通过铰链连接在一起，使得第一连杆3和第二连杆4之间夹角可随外力的作用而变化。具体的，在使用过程中，外力施加在第一连杆3和第二连杆4相连的铰链处。优选的，铰链处设置有用于接收外力的受力部，所述传动组件将所述受力部承受的外力转化为沿光轴方向的推动力。进一步的，第二连杆4远离铰链的一端通过螺钉5可活动固定在支架2上。这样，在传动组件受力时，由于第二连杆4的固定端固定在支架2上，因此外力通过第一连杆3和第二连杆4之间夹角的变化传递到第一连杆3远离铰链的一端形成沿光轴方向的推动力。
需要说明的是，第二连杆4的固定方式并不限于此，也可以采用卡扣等其他固定方式，只要是保证第二连杆4一端固定并可以通过铰链传递给第一连杆3，实现受力的转换，即是可以实施的；此外，所谓的第一连杆、和第二连杆并不具体限制部件的结构，事实上，并不一定为杆状，板状、片状、甚至块状，只要具有相应的结构，可以实现本发明目的的即是可以实施的。
进一步的，传动组件还包括用于使第一连杆3和第二连杆4受力复位的提供扭转弹性力的弹性复位件6，第一连杆3和第二连杆4受力后夹角变大，此时为外力抵抗弹性复位件6产生的弹力做功，第一连杆3和第二连杆4之间的张力越大，弹性复位件6提供的弹力越大，此时若外力消失后，则弹性复位件6传动装置恢复到第一连杆和第二连杆的初始夹角，即在不受力下，第一连杆和第二连杆面向支架方向时的夹角，实现镜头移除机构的自动复位。弹性复位件6既可以与第一连杆3相连，也可以与第二连杆4相连，具体在本实施方式中，弹性复位件6设置在所述第二连杆4的固定端，并通过螺钉5装配到支架2上，并与第二连杆4相连。在本实施方式中，弹性复位件6为扭簧，在可选择的其他实施方式中，也可以采用其他结构，例如连接第一连杆和第二连杆的弹簧，只要可以为传动组件提供复位用的弹力，即是可以实施的。
进一步的，在靠近连接架一侧，本发明的传动组件还设置有一个用于与连接架1相配合的滑块7，在本实施方式中，连接架1为设置有通孔的连板，滑块7至少部分穿过通孔设置，滑块可施加作用力在与通孔钩接的镜头卡钩上，使得镜头与连扳解除连接。滑块7远离连板的一端与第一连杆3相抵接，在第一连杆3的驱动下可沿镜头的光轴方向滑动。从而实现将第一连杆3上的力传递到连接架1进而传递到镜头200处。具体的，滑块7靠近第一连杆3处设置有向远离第一连杆3方向凹陷的固定槽71，第一连杆3远离铰链的一侧插入该固定槽71内，并进一步通过一插销8进行固定，以进一步增加第一连杆4与滑块7的连动性。
进一步的，第二连杆4上还设置有用于避免受力过度的限位部41，对应的，支架2上设置有与限位部41相匹配的限位槽。当外力过大，第一连杆3和第二连杆4之间的夹角大到一定程度时，限位部41随着夹角变大，第二连杆4的移动会接触到支架2上的限位槽，从而避免过度位移而导致扭簧失效，提高产品的可靠性能。
本发明还提供一种包含上述镜头移除机构的光学设备，该光学设备包括例如为投影仪等的投影设备、例如为摄影机、照相机等的拍摄设备等，镜头移除机构100位于光学设备镜头的拆卸接口部位，包括与镜头200可拆卸连接的连接架和传动组件，其中镜头200包括的卡钩与连接端配合以钩接，当传动组件收到外力时会在连接架产生向镜头方向的推力，推动镜头处解锁弹片，然后在相关辅助结构的配合下实现镜头的拆卸。
本发明的有益效果是：区别于现有技术的情况，本发明提供一种镜头移除机构，通过改变所述第一连杆和所述第二连杆之间的夹角将所述传动组件所受的外力传递到所述连接架。此发明便捷可靠，传动省力，且结构比较简单、装配方便、成本较低，实用性强。
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 (10)

  1. 一种镜头移除机构，其特征在于，包括与镜头可拆卸连接的连接架和传动组件，所述连接架上设置有镜头连接部，所述传动组件至少部分地经过该连接部，所述传动组件包括相互连接且夹角可变化的第一连杆和第二连杆，所述传动组件通过改变所述第一连杆和所述第二连杆之间的夹角将所述传动组件所受的外力传递到所述连接架。
  2. 根据权利要求1所述的镜头移除机构，其特征在于，所述第一连杆和所述第二连杆通过铰链连接。
  3. 根据权利要求1所述的镜头移除机构，其特征在于，所述传动组件包括容纳所述第一连杆和所述第二连杆的支架、以及设置在所述支架上可沿镜头的光轴方向滑动的滑块，所述第一连杆远离所述第二连杆的一端抵触所述滑块，并带动所述滑块滑动。
  4. 根据权利要求3所述的镜头移除机构，其特征在于，所述镜头移除机构在所述第一连杆和所述第二连杆相连的铰链处设置有用于接收外力的受力部，所述传动组件将所述受力部承受的外力转化为沿光轴方向的推动力。
  5. 根据权利要求3所述的镜头移除机构，其特征在于，所述传动装置还包括与所述第一连杆和/或所述第二连杆相连的弹性复位件，所述扭簧带动所述传动装置恢复到初始夹角。
  6. 根据权利要求5所述的镜头移除机构，其特征在于，所述第二连杆远离所述第一连杆的一端通过螺钉可活动固定在所述支架上。
  7. 根据权利要求6所述的镜头移除机构，其特征在于，所述扭簧设置在所述第二连杆的固定端。
  8. 根据权利要求6所述的镜头移除机构，其特征在于，所述第二连杆上设置有用于避免受力过度的限位部，所述支架上设置有与所述限位部相匹配的限位槽。
  9. 根据权利要求3所述的镜头移除机构，其特征在于，所述连接架为设置有通孔的连板，所述滑块至少部分穿过所述通孔设置。
  10. 一种光学设备，其特征在于，包括镜头和与所述镜头可拆连接的如权利要求1到9中任意一项所述的镜头移除机构。
     
     
PCT/CN2018/071437 2017-11-02 2018-01-04 镜头移除机构及光学设备 Ceased WO2019085263A1 (zh)

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