Day and night confocal lens of camera

Abstract

The invention relates to the technical field of cameras, in particular to a day and night confocal lens of a camera, which comprises a machine body, a connecting ring and a lens cone, a splicing mechanism is arranged on the machine body, a mounting mechanism is arranged on the connecting ring, the lens cone comprises a lens groove, a fixing frame and a top cover, the lens groove is formed in the lens cone, and the fixing frame is arranged on the top cover. A lens groove is formed in the lens barrel, the lens groove sequentially comprises a first lens, a second lens, a diaphragm, a third lens, a fourth lens and a fifth lens from right to left, the first lens, the third lens, the fourth lens and the fifth lens are all aspheric lenses, the second lens is a biconvex lens, a top groove is formed in the top end of the lens barrel, and the diaphragm is arranged in the top groove. And the top cover abuts against the top groove, so that the problems that the infrared defocus of the existing lens is large, the number of lenses is too large, the lens and parts in the lens are inconvenient to disassemble when the parts are maintained or replaced, and the working efficiency of personnel is influenced are solved.

Description

technical field [0001] The invention relates to the technical field of cameras, in particular to a day and night confocal lens of a camera. Background technique [0002] As we all know, a camera is a device that uses the principle of optical imaging to form an image and use a film to record the image, and is an optical device for photography. In modern social life, there are many devices that can record images, and they all have the characteristics of cameras, such as medical imaging equipment, astronomical observation equipment, etc. [0003] The existing lens has a large infrared defocus and a large number of pieces. When maintaining or replacing parts, it is inconvenient to remove the lens and the parts inside the lens, which affects the work efficiency of personnel. SUMMARY OF THE INVENTION [0004] (1) Technical problems solved [0005] Aiming at the deficiencies of the prior art, the present invention provides a day and night confocal lens of a camera. [0006] (2...

AI Technical Summary

Problems solved by technology

[0003] The existing lens has a large infrared defocus and a large number of lenses. When maintaining or replacing components, it is not convenient to remove the lens and the components inside the lens, which affects the work efficiency of personnel.

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