Ultra-large wide-angle high-definition optical lens

Abstract

The invention discloses an ultra-large wide-angle high-definition optical lens, and the optical lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, an optical filter and an image plane which are arranged along an optical axis from an object plane to the image plane. According to the ultra-large wide-angle high-definition optical lens, the field angle reaches 240 degrees, the aperture FNO. reaches 1.8, the luminous flux is large, and the night camera shooting effect is better; six glass lenses and two plastic lenses are adopted, so that the weight and size of the lens can be reduced, the manufacturing cost of the lens is reduced, and the research and development period is accelerated; optical parameters are well matched with imaging conditions, so that aberration of a lens system is corrected to a large extent, MTF resolution is high, and it is guaranteed that the whole projection image plane is high in definition and even in imaging. Besides, all the optical glass lenses adopt spherical surface design, the lens cold processing technology performance is good, the glass material cost is low, the price ofthe finished lens is low, and the mass production yield is high.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a super wide-angle high-definition optical lens. Background technique [0002] Panoramic technology is a new type of visual technology that is rapidly developing at present. Using a special panoramic imaging device, a full 360° in the horizontal direction and a certain angle of view in the vertical direction can be obtained. This imaging method can provide all-round information of the object and the environment in real time, buying time for subsequent image processing and analysis. Panoramic lens technology is of great significance in machine vision, pipeline detection, medical endoscopic inspection, peripheral vision monitoring, etc., and has broad application prospects in aviation, national defense, civil, medical and other fields. [0003] With the development of society, the market puts forward higher requirements for the field of view and body shape of the panoramic...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the common problems in the existing market that the angle of view is not large enough (often around 180 degrees, which does not satisfy the existing market), the length is too long, too many lenses, the structure is complex, and the resolution is not uniform. Provide a super wide-angle high-definition optical lens with a field of view of 240°

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