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Low speed CCD based high speed imaging sensor

A high-speed image and sensor technology, used in image communication, color TV parts, TV system parts, etc., to achieve the effects of high stability and reliability, simple adjustable drive circuit, and low cost

Inactive Publication Date: 2008-03-12
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the technology only has a few fixed frame rates and pixel count combinations

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  • Low speed CCD based high speed imaging sensor
  • Low speed CCD based high speed imaging sensor
  • Low speed CCD based high speed imaging sensor

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Embodiment Construction

[0039] The present invention will be further described below through the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereto.

[0040] Referring to Fig. 5 and Fig. 6, Fig. 5 is a schematic structural diagram of an embodiment of a high-speed image sensor based on a low-speed CCD of the present invention, and Fig. 6 is a schematic structural diagram of an adjustable drive circuit and peripheral circuits of the CCD image sensor of the present invention. The structure of the present invention is: in front of the photosensitive face of the low-speed CCD4 with adjustable driving circuit 1 and peripheral circuit 2, a diaphragm 3 is placed close together; The signal S is connected, and its output terminal is connected with the first input terminal 111 of frequency dividing circuit 11, the input terminal of counting circuit 12 respectively; The output terminal of this frequency dividing circuit 11 is connected with the i...

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Abstract

The present invention relates to a high speed image sensor based on a low speed CCD, which is characterized in that the structure is that an adjustable diaphragm is closely arranged in front of the light sensation of the low speed CCD which has a adjustable drive circuit and a peripheral circuit, and the output terminal of the CCD is connected with a denoising circuit and a module transfer circuit in sequence. The exposure region of the CCD light sensation area is controlled by the diaphragm, the CCD chip is driven by the special adjustable circuit, only the electrical charge of the CCD pixel unit of the exposure part is transferred, the electrical charge transferring time can be reduced obviously, and the frame speed of the CCD is improved. The present invention has the advantages that the structure is simple, the reliability is high, the cost is low, the measuring speed is rapid, and the precision is high, thereby the present invention is suitable for the real-time detecting in the fields of manufacturing industry, image recognition, automatic precision measurement, robotvision, and automatic following, etc.

Description

technical field [0001] The invention relates to a high-speed image sensor, in particular to a high-speed image sensor based on a low-speed CCD, and relates to a high-speed image sensor based on a low-speed CCD for sinusoidal phase modulation interferometry. Background technique [0002] In the fields of automatic tracking and automatic precision measurement, high-speed charge-coupled device (hereinafter referred to as CCD) image sensor and complementary metal-oxide semiconductor (abbreviated as CMOS) image sensor and other devices are usually required to quickly record changes in image information. At present, there are relatively mature high-speed CCD and CMOS image sensors, but commercial high-speed CCD sensors generally have the problems of high cost, complex structure, sacrifice of sensor accuracy, and fixed and non-adjustable frame rate. [0003] In the international advanced sinusoidal phase modulation (abbreviated as SPM) surface profile interferometry technology (pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/335H04N3/15H04N25/00
Inventor 王向朝何国田唐锋刘英明
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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