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Single-detector optical imaging system and method based on mems micro-scanning mirror

A single-detector, optical imaging technology, applied in the imaging field, can solve the problems of a large number of independent exposure times and a long time spent, and achieve the effects of easy physical implementation, short scanning cycle, and low energy consumption

Inactive Publication Date: 2016-04-13
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the camera only uses one photoelectric sensor, each exposure can only achieve one aliasing sampling, so a large number of independent exposures are required to complete an imaging, which takes a long time

Method used

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  • Single-detector optical imaging system and method based on mems micro-scanning mirror

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Embodiment Construction

[0024] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] refer to figure 1 , the present invention is based on the single-detector optical imaging system of MEMS micro-scanning mirror, including imaging lens 1, scanning mirror 2, scanning mirror driving module 3, converging lens 4, single-point photoelectric sensor 5, analog-to-digital converter 6 and data storage calculation Module 7. in:

[0026] The scanning mirror 2 adopts a two-axis miniature torsion mirror, which is controlled by two square wave signals, and can periodically swing in two orthogonal directions to perform two-dimensional scanning of the target scene; the scanning mirror is fixed on the imaging lens 1 The position is used to image the target scene, and realize the sampling of the light signal of the target scene perpendicular to the converging lens 4 in the reflected light signal, so as to obtain the two-dimensional targe...

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Abstract

The invention discloses a single-detector optical imaging system and method based on a MEMS micro-scanning mirror, which mainly solves the problems of long imaging time and limited sensor array of existing devices. The device includes an imaging lens, a scanning mirror, a scanning mirror drive module, a converging lens, a single-point photoelectric sensor, an analog-to-digital converter and a data storage computing module. The target scene is imaged on the scanning mirror through the imaging lens. The scanning mirror samples the light signal of the target scene. The converging lens converges the sampling signal to a single-point photoelectric sensor. After photoelectric and analog-to-digital conversion, the pixel value of the target image is obtained. Finally, through recovery The algorithm gets the target image. The present invention uses a MEMS scanning mirror and a photoelectric sensor to replace the traditional photoelectric sensor array, reduces the requirement for the scale of the sensor array, and can be used for two-dimensional scanning and imaging of target scenes.

Description

technical field [0001] The invention belongs to the field of imaging technology, and relates to a single-detector optical imaging system and method, which can be used for two-dimensional scanning and imaging of a target scene. Background technique [0002] Optical imaging is an important means for humans to obtain visible light, infrared light, and multispectral image information, and is widely used in astronomical observation, space reconnaissance, and resource information detection. The traditional imaging method is to use the imaging lens to image the target scene to the sensor array, and then obtain the digital signal of the image through the analog-to-digital converter. However, with the acceleration of social informatization, due to the limitations of existing materials, devices, and process conditions, traditional imaging methods are facing bottlenecks that are difficult to break through, such as sensor array manufacturing processes and massive data storage, and can n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B26/10H04N5/335H04N25/00
Inventor 冯冬竹刘立芳余航何晓川单浩宇佘颜许录平
Owner XIDIAN UNIV
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