Non-uniformity correction device for infrared camera

A technology of non-uniformity correction and infrared camera, which is applied to cameras, camera bodies, TVs, etc., can solve the problems of reducing the service life of infrared cameras and the inability to use manual methods to achieve camera non-uniformity correction, etc., and achieves simple structure, small volume effect

Inactive Publication Date: 2012-10-03
长春长光圆辰微电子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when the camera is in a state that cannot be reached by people, it is impossible to implement the non-uniformity correction of the camera manually
If the camera non-uniformity correction process is completed in advance when the camera can reach it, the camera has to continue to work with electricity until it reaches the target working position, which will reduce the service life of the infrared camera

Method used

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  • Non-uniformity correction device for infrared camera
  • Non-uniformity correction device for infrared camera
  • Non-uniformity correction device for infrared camera

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Embodiment Construction

[0013] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0014] Reference Figure 1~5 The infrared camera non-uniformity correction device of the present invention includes: a base 1, a cylindrical electromagnet 2, a crankshaft mechanism 3, a pin 4, a limit rod 6, a closed state limit screw 5, a working state limit screw 7 and Shading plate 8. Among them, the crankshaft mechanism 3 is composed of a crank 31, a cam 32 and a crankshaft 33; the tube type electromagnet 2 is composed of a magnetic base 21, a compression spring 22, a spring base 23 and an iron core 24. One end of the iron core 24 is located in the cylindrical cavity of the magnetic base 21, the spring base 23 is fixedly connected to the iron core 24 by threads, and the compression spring 22 is located between the spring base 23 and the magnetic base 21. The pretension force of the compression spring 22 can be adjusted by adjusting the axial position of ...

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Abstract

The invention provides a non-uniformity correction device for an infrared camera, relates to an automatic cut-in/cut-out device, and solves the technical problem in the prior art that use conditions are limited when the non-uniformity of the infrared camera is manually corrected. The correction device provided by the invention comprises a base (1), a round pipe type electromagnet (2), a crankshaft mechanism (3), a pin (4), a closed-state stop screw (5), a stop rod (6), a working-state stop screw (7) and a light shielding plate (8). According to the non-uniformity correction device, the round pipe type electromagnet is adopted to provide linear power for the whole mechanism, and a light path is shielded or open through using the light shielding plate formed by a crank, a crankshaft and a cam to indirectly drive the light shielding plate. The non-uniformity correction device has the advantages of simple structure, reliability, practicality and small space volume, and is more suitable for application places with seriously limited space.

Description

Technical field [0001] The invention relates to an automatic cut-in / cut-out device, in particular to an electric actuator for non-uniformity correction of an infrared camera. Background technique [0002] Infrared cameras have inherent non-uniform noise. If the necessary correction processing is not performed on this, it will cause fixed irregular shading on the image, which will interfere with the extraction of the target. Therefore, during the startup process of the infrared camera, it needs to be processed for non-uniformity correction. The traditional method is: when the camera is started, the reference black body of uniformity is manually blocked in front of the lens as the correction reference, and then the non-uniformity correction of the camera is realized. This method is simple and easy to implement, convenient and practical, but the scope of application is very limited. For example, when the camera is in a state that cannot be reached by humans, the non-uniformity cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B17/14H04N5/232H04N5/33
Inventor 徐新行陈宁王兵曹立华
Owner 长春长光圆辰微电子技术有限公司
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