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An ultra-short 4k black light prime lens

A fixed-focus lens and black light technology, applied in the field of optical lenses, can solve the problems of difficult promotion and popularization of products, many glass lenses, and high cost, and meet the requirements of high-definition image quality, high imaging quality, and increase the possibility Effect

Active Publication Date: 2022-02-01
DONGGUAN YUTONG OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Limited by the limitation of optical design, the traditional large image surface black light lens uses more glass lenses, which are bulky and expensive, making it difficult to promote and popularize this series of products

Method used

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  • An ultra-short 4k black light prime lens
  • An ultra-short 4k black light prime lens
  • An ultra-short 4k black light prime lens

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0021] figure 1 It is a structural schematic diagram of an ultra-short 4K black light fixed-focus lens provided by an embodiment of the present invention, as shown in figure 1 As shown, the embodiment of the present invention provides an ultra-short 4K black light fixed-focus lens, including a first lens 11 with negative refractive power and a first lens 11 with negative refractive power arranged in sequence along the optical axis from the object side to the image side. Two lens 12, the 3rd lens 13 with positive ...

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Abstract

The embodiment of the present invention discloses an ultra-short 4K black light fixed-focus lens. The ultra-short 4K black light fixed-focus lens includes first lenses with negative refractive powers arranged in sequence along the optical axis from the object side to the image side. the second lens with positive power, the third lens with positive power, the fourth lens with negative power, the fifth lens with positive power, the sixth lens with positive power and the Seventh lens. The fixed-focus lens provided by the present invention can improve the imaging quality and meet the high-definition image quality requirement under the condition of ensuring high performance, small size and low cost.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of optical lenses, in particular to an ultra-short 4K black light fixed-focus lens. Background technique [0002] The advancement of science and technology has promoted the improvement of human demand for technology, and the security industry is an industry with continuous technological innovation and continuous improvement of products. With the improvement of chip technology, the sensitivity of chips to light is getting higher and higher. Moreover, with the improvement of image processing technology, people began to be dissatisfied with monitoring black and white pictures at night, and there are more and more demands for day and night full-color monitoring systems, and the requirements for images are getting higher and higher. This requires the lens to have a large light transmission coefficient, so that the imaging system can clearly capture and restore the most realistic scene image...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18G02B13/006
Inventor 李泽民米士隆鸥鹏飞张占军
Owner DONGGUAN YUTONG OPTICAL TECH