Device for reazliing time delay integral of area array CMOS image sensor

A technology of time-delay integration and image sensor, which is applied in the special application field of CMOS image sensor, can solve the problems that photoelectron transfer and integration cannot be carried out, TDICMOS devices are not easy to obtain, etc., and achieve the effect of flexible selection
CN101854489AInactive Publication Date: 2010-10-06CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Publication Date
2010-10-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a device for realizing time delay integral of an area array CMOS image sensor. The device comprises a TDI sequential control device and a random access memory. The TDI sequential control device generates a CMOS image sensor driving waveform, and the CMOS image sensor starts to output digital image generated by push-broom imaging to the random access memory; TDI controlled time sequence generated by the TDI sequential control device is transmitted to the random access memory, time delay integral process of the digital image is completed in the random access memory, and various levels of the processed integral results are stored; and the final image after time delay integral processing is transmitted to an image acquisition card or the memory. On the premise of not changing the structure of the area array CMOS image sensor, the device can achieve the time delay integral of the digital image by virtue of an external part so that an area array CMOS imaging system can become the future imaging system for achieving ground remote sensing instead of TDI CCD.
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Description

technical field

[0001] The invention belongs to the application field of photoelectric sensors and relates to a method for special application of CMOS image sensors. Background technique

[0002] At present, the application of CMOS image sensor has gradually been paid attention to by people. Compared with traditional CCD image sensors, CMOS sensors have the advantages of low power consumption, high integration, small size, strong anti-interference ability, and only need a single power supply. Therefore, image sensors are widely used in civilian cameras, machine vision, astronomical observation, and small satellites. , star sensors and other application fields have shown great potential. However, due to the photoelectric conversion principle, internal structure and process, etc., the current CMOS image sensors are mostly area array structures, and the linear array CMOS or TDI CMOS (time delay integral CCD) corresponding to the linear array CCD and TDI CCD CMOS) devices are ...

Claims

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