Wide Spectrum Strong Light Camera Lens

Abstract

The invention relates to a broad-spectrum pick-up lens with strong light-gathering power. According to an optical system of the lens, a front fixed set with the focal power being positive, an iris diaphragm and a rear focusing set with the focal power being positive are sequentially arranged in the incidence direction of a light path from left to right. A plus crescent lens A-1, a minus crescent lens A-2, a first gluing set and a second gluing set are sequentially arranged on the first fixed set, wherein the first gluing set is formed by tightly connecting a biconvex lens A-3 and a biconcave lens A-4, and the second gluing set is formed by tightly connecting a biconvex lens A-5 and a biconcave lens A-6. A biconvex lens C-1 and a third gluing set formed by tightly connecting a biconvex lens C-2 and a biconcave lens C-3 are sequentially arranged on the rear focusing set. According to the lens, the focal power bearing ability of the front fixed lens set, the ED optical material is adopted to effectively lower aberration of a second order spectrum and the like of an optical lens, the lens can work within a broad spectrum range and has the advantage of strong light-gathering power, and the detection ability on remote targets under harsh weather conditions like severe haze, dust and low light is improved.

Description

technical field [0001] The invention relates to a wide-spectrum strong-light imaging lens, which belongs to the field of optoelectronic technology. Background technique [0002] Ordinary camera lenses are limited to applications under general lighting conditions. When used in harsh environments such as low light, severe haze, and dust, the signal itself is very weak or the scattering phenomenon is obvious during transmission, which will cause the target signal to be submerged in the background Among the signals, it cannot be used normally, especially the target signal is far away, and the signal strength is greatly lost during the propagation process. Therefore, the requirements for wide spectrum and strong light power are becoming more and more intense. Contents of the invention [0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a wide-spectrum strong-light imaging lens. [0004] In order to achieve the above object, ...

AI Technical Summary

Problems solved by technology

[0002] Ordinary camera lenses are limited to applications under general lighting conditions. When used in harsh environments such as low light, severe haze, and dust, the signal itself is very weak or the scattering phenomenon is obvious during transmission, which will cause the target signal to be submerged in the background Among the signals, it cannot be used normally, especially the target signal is located far away, and the signal strength is greatly lost during the propagation process, so the requirements for wide spectrum and strong light power are becoming more and more intense

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