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Lens and camera

A lens and lens technology, applied in image communication, equipment, television, etc., can solve the problems of image color cast, large wavelength difference, etc.

Inactive Publication Date: 2018-04-17
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Visible light and near-infrared light have a large difference in wavelength. If they are mixed together, the collected image will have a serious color cast. Therefore, the low-light camera using this solution can only output images in black and white mode

Method used

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  • Lens and camera
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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] In order to solve the above technical problems, embodiments of the present invention provide a lens and a camera. The lens provided by the embodiment of the present invention will firstly be described in detail below.

[0059] figure 1 It is a schematic diagram of the first structure of the lens provided by the embodiment of the present invention. The lens 10 includes: the variable power group lens 100, the compensation group lens 200 and the spectrosc...

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Abstract

An embodiment of the invention discloses a lens and a camera, wherein a light splitting apparatus is arranged in the lens, incident light rays are separated into visible light and near infrared light,a zooming group lens sheet and a compensation group lens sheet are arranged in the lens, and focal length variation and aberration correction can be realized. The lens is arranged in the camera, thevisible light can be separated from the infrared light, a visible light collection module is arranged in the camera, visible light emitted from the lens can be collected and then converted into a color signal and a first brightness signal, a near infrared light collection module is arranged in the camera, and near infrared light emitted from the lens is collected and then converted into a second brightness signal; a fusion module is also arranged in the camera and is used for fusing the color signal, the first brightness signal and the second brightness signal; a fused image is output. Therefore, the camera provided in a solution of the invention is used for fusing operation after processing the visible light and the near infrared light respectively, color cast which is caused when the visible light and the near infrared light are mixed can be prevented, and a color mode image can be output in a low illumination scene.

Description

technical field [0001] The invention relates to the technical field of optical equipment, in particular to a lens and a camera. Background technique [0002] Low-light cameras refer to surveillance cameras that can still capture clear images under low-light conditions. Low-light cameras have been widely used in the field of security monitoring. [0003] At present, most low-light cameras need to use infrared lights for supplementary light in low-light scenes, so that the brightness of the scene can be improved. However, after being supplemented by infrared lights, the light collected by the camera includes both visible light and near-infrared light. The wavelengths of visible light and near-infrared light are quite different. If they are mixed together, the collected image will have serious color cast. Therefore, the low-light camera using this solution can only output images in black and white mode. Contents of the invention [0004] The purpose of the embodiment of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225
CPCH04N23/55G02B15/177G02B13/146G02B27/1013H04N23/58
Inventor 刘超杨坤王威陈艳婷许建军
Owner HANGZHOU HIKVISION DIGITAL TECH