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

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.

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...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a lens-specific centering mechanism and a concentricity adjustment device using the mechanism to solve the problems in the prior art that the cost is relatively high, the adjustment operation is inconvenient, and the adjustment accuracy cannot be guaranteed.

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