Wide-angle lens and imaging equipment

A wide-angle lens and imaging surface technology, applied in optical components, optics, instruments, etc., can solve the problems of difficult to correct edge aberration, large incident angle of light, large f-θ distortion, etc., to eliminate chromatic aberration, large field of view, Effects of low tolerance sensitivity
CN110609378AActive Publication Date: 2019-12-24合肥联创光学有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
合肥联创光学有限公司
Publication Date
2019-12-24

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Abstract

The invention provides a wide-angle lens and imaging equipment. A first group sequentially comprises a first lens, a second lens and a third lens from an object side to an imaging surface, wherein thefirst lens has a negative focal power, the second lens has a negative focal power, the third lens has a focal power, an object side surface of the first lens is a convex surface, an image side surface of the first lens is a concave surface, an image side surface of the second lens is a concave surface, a second group sequentially comprises a fourth lens and a fifth lens, the fourth lens has a positive focal power, the fifth lens has a positive focal power, image side surfaces of the fourth lens and the fifth lens both are convex surfaces, a third group sequentially comprises a sixth lens, a seventh lens and an eighth lens, the eighth lens has a positive focal power, an object side surface and an image side surface of the eighth lens both are convex surfaces, the sixth lens and the seventhlens are combined to form a bonding body, a diaphragm is arranged between the first group and the second group, and an optical filter is arranged between the third group and an imaging surface. The wide-angle lens provided by the invention has the advantages of small distortion, high pixel, large visual field angle and low tolerance sensitivity.
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Description

technical field

[0001] The invention relates to the technical field of lens imaging, in particular to a wide-angle lens and imaging equipment. Background technique

[0002] With the development of optical lens imaging technology, wide-angle lenses have achieved rapid development. However, due to the large f-θ distortion commonly found in current wide-angle imaging lenses, and the large incident angle of light, it is difficult to correct marginal aberrations. Tolerance sensitive, low assembly yield. Based on this, an optical imaging system with small distortion, high pixels, and large wide-angle is designed. At the same time, through the control of the lens structure, the assembly yield can be effectively improved. Contents of the invention

[0003] The object of the present invention is to provide a wide-angle lens and an imaging device, which have the advantages of small distortion, high pixels, large viewing angle, and low tolerance sensitivity.

[0004] Embodiments of...

Claims

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