Lens module, calendar employing same and projection device
A lens module and opto-mechanical technology, used in projection devices, installation, optics, etc., can solve the problems of repeated disassembly, affecting assembly efficiency, and jamming, and achieve the effect of improving assembly efficiency, avoiding assembly failure and
Pending Publication Date: 2019-04-09
QISDA OPTRONICS (SUZHOU) CO LTD
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Problems solved by technology
[0002] There are usually multiple lenses in the optical system. As the precision requirements of the optical system become higher and higher, the relative position requirements between the lenses are also higher and higher. Therefore, the lens is usually installed through the installation channel during the installation process. However, the inner diameter of the installation channel is very similar to the outer diameter of the lens, which will cause the lens to be stuck by the installation channel once it is tilted during the installation process, making the operator need to repeatedly disassemble the lens, and even easily cause damage to the lens , which seriously affects the assembly efficiency and product yield; in addition, in the prior art, when the lens module is installed in the installation channel, the lens is usually pressed by a retainer with an external thread and connected with the internal thread in the optical machine Structural cooperation is used to fix the lens module, which further affects the assembly efficiency
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[0020] In order to have a further understanding of the purpose, structure, features and functions of the present invention, the detailed description is as follows in conjunction with the embodiments.
[0021] Certain terms are used in the description and claims to refer to particular elements. Those of ordinary skill in the art will appreciate that manufacturers may refer to the same element by different terms. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Include" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to".
[0022] See Figure 1A , Figure 1B , figure 2 and image 3 , Figure 1A An exploded schematic diagram of the lens module 1 provided by the embodiment of the present invention, Figure 1B It is a schematic structural diagram of the lens module 1 ...
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The invention provides a lens module. The lens module is applied to a calendar and comprises an assembly piece, at least one lens and at least one washer, wherein the assembly piece comprises an annular bottom part and a clamping rod, the clamping rod extends along an axial direction of the annular bottom part, the annular bottom part and the clamping rod form an accommodating space, the at leastlens is arranged in the accommodating space and is clamped by the clamping rod, the at least one washer is arranged in the accommodating space and is clamped by the clamping rod, and the at least onelens and the at least washer are sequentially and alternatively arranged along the axial direction. By matching of the lens, the washer and the assembly piece, the lens module is enabled not to easilyincline during assembly to the calendar, so that the assembly failure and damage to the lens are prevented; moreover, when the assembly piece is used for assembly lens, the lens module can be fixed in the calendar without other fixed pieces; and therefore, and the assembly efficiency of the lens module during the assembly process and the product yield are effectively improved.
Description
technical field [0001] The invention relates to the technical field of image display, in particular to a lens module, an optical-mechanical structure and a projection device using the lens module. Background technique [0002] There are usually multiple lenses in the optical system. As the precision requirements of the optical system become higher and higher, the relative position requirements between the lenses are also higher and higher. Therefore, the lens is usually installed through the installation channel during the installation process. However, the inner diameter of the installation channel is very similar to the outer diameter of the lens, which will cause the lens to be stuck by the installation channel once it is tilted during the installation process, making the operator need to repeatedly disassemble the lens, and even easily cause damage to the lens , which seriously affects the assembly efficiency and product yield; in addition, in the prior art, when the len...
Claims
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IPC IPC(8): G03B21/14G02B7/02
CPCG02B7/026G03B21/14
Inventor 李宏鹏刘明源张松甫樊维
Owner QISDA OPTRONICS (SUZHOU) CO LTD