Dedicated self-aligning mechanism for lens and concentricity adjusting device employing same

A lens and centering technology, applied in installation, optics, instruments, etc., can solve problems such as high cost, inability to guarantee adjustment accuracy, inconvenient adjustment operation, etc., and achieve less error influencing factors, simple and quick adjustment, and convenient concentricity adjustment Effect

CN107907963APending Publication Date: 2018-04-13DANYANG DANYAO OPTICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-04-13

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Abstract

The invention provides a dedicated self-aligning mechanism for a lens and a concentricity adjusting device employing the same. The self-aligning mechanism includes a support base, a lens barrel and aplurality of positioning bolts. The top face of the support base is provided with an annular inner frame and an annular outer frame. A ring groove is formed between the annular inner frame and the annular outer frame. An end part of the lens barrel is arranged in the ring groove. The top face of the annular inner frame is provided with a lens. The lens is arranged in the lens barrel. The diameterof the lens is greater than that of the annular inner frame. A plurality of positioning holes I are arranged in the annular outer frame uniformly in a surrounding manner. The positioning holes I are provided with female threads. A plurality of positioning holes II are arranged in the lens barrel uniformly in a surrounding manner. The positioning holes I and the positioning holes II are arranged inone-to-one correspondence. The positioning bolts penetrate through the positioning holes I and the positioning holes II. Positioning adjustment on the lens is performed through the positioning boltsarranged around the lens in a surrounding manner. The position of the lens is adjusted through one positioning bolt independently or through the positioning bolts in a combined manner, so that 360-degree quick adjustment on the lens is realized and concentricity adjustment of the lens and the lens barrel is implemented quickly and accurately.
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Description

technical field

[0001] The invention relates to a lens-specific centering mechanism and a concentricity adjusting device using the same. Background technique

[0002] During the production process, the concentricity of the lens and lens barrel should be adjusted uniformly, otherwise it will lead to spherical aberration and coma. In the process of adjusting the concentricity of the lens and the lens barrel, an eccentricity test is first required, and then the concentricity adjustment is performed. At present, the existing adjuster completes the eccentricity test through the way that the light passes through the lens and then forms an image. In this way, due to the refraction of the light passing through the lens, there are errors, resulting in low precision, which makes the concentric adjustment relatively difficult.

[0003] When adjusting the concentricity of the lens and the lens barrel, the currently used centering device has the problems of relatively high cost, inconve...

Examples

Embodiment

[0022] A lens-specific centering mechanism, such as figure 1 and figure 2 , comprising a support 71, a lens barrel 72 and a number of positioning bolts 73, the top surface of the support 71 is provided with an annular inner frame 74 and an annular outer frame 75, and an annular groove is formed between the annular inner frame 74 and the annular outer frame 75, and in the annular groove The end portion of the lens barrel 72 is provided, the top surface of the annular inner frame 74 is provided with a lens 79, and the lens 79 is arranged in the lens barrel 72, the diameter of the lens 79 is greater than the diameter of the annular inner frame 74, and the annular outer frame 75 is evenly arranged around A plurality of positioning holes 76, the positioning holes 1 76 are provided with internal threads, the lens barrel 72 is evenly surrounded by a number of positioning holes 2, the positioning holes 1 76 are correspondingly arranged with the positioning holes 2 one by one, and the...