Super-definition large-area-array day and night zoom lens

Abstract

The invention relates to a super-definition large-area-array day and night dual-purpose zoom lens, which comprises a front fixing group, a zoom group, an iris diaphragm, a middle fixing group, a compensation group and a rear fixing group which are arranged along a light incidence direction, and is characterized in that the front fixing group comprises a meniscus negative lens A1, a biconvex positive lens A2 and a meniscus positive lens A3; the zoom group comprises a biconcave negative lens B1, a biconcave negative lens B2, a biconcave negative lens B3 and a biconvex positive lens B4; the middle fixed group D comprises a biconvex positive lens D1, a meniscus positive lens D2, a biconcave negative lens D3, a biconcave negative lens D4 and a biconvex positive lens D5; the compensation group comprises a biconvex positive lens E1 and a biconvex positive lens E2; and the rear fixed group comprises a biconcave negative lens F1, a meniscus negative lens F2, a meniscus positive lens F3 and a biconvex positive lens F4. The lens adopts a five-group zoom structural form, various aberrations of a large-aperture large-image-plane lens can be fully balanced, through reasonable material selection and focal power ratio, the sensitivity of the lens is reduced, the imaging quality of the lens is improved, and the lens has productivity.

Description

Technical field: [0001] The invention relates to an ultra-clear large area array day and night dual-purpose zoom lens. Background technique: [0002] In recent years, with the development of road traffic planning, more and more road monitoring cameras have been used in the intelligent transportation industry. The combination of information collected by road monitoring cameras with big data and artificial intelligence technology can be used in the first time Capture road traffic information internally, improve road traffic conditions and deal with a series of traffic safety issues, effectively promoting the construction of smart cities. [0003] As the core component of the road monitoring network, the road monitoring lens, as the eyes of the entire urban traffic monitoring network, must have high restoration power and various anti-interference capabilities for the images of the monitored area. At present, the lenses used for smart city road monitoring on the market are stil...

AI Technical Summary

Problems solved by technology

For example, an intelligent traffic lens disclosed in the patent CN201721291717.1 cannot realize the zoom function, and does not have the performance of imaging without supplementary light at night

There are still some road surveillance lenses on the market that are zoom lenses with large apertures, but these lenses can only be adapted to chips with a size below 1 / 1.8", and the photosensitive image area is small, and the resolution is low, and they do not have Day and night performance, and some zoom lenses that support extremely high-resolution imaging do not have the ability to perform low-light imaging with large apertures

Images