发明授权
- 专利标题： CCD photosensor and its application to a spectrophotometer
- 专利标题（中）： CCD光电传感器及其应用于分光光度计
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申请号： US387213申请日： 1989-07-28
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公开(公告)号： US5043571A公开(公告)日： 1991-08-27
- 发明人: Jun Hasegawa
- 申请人： Jun Hasegawa
- 申请人地址： JPX Osaka
- 专利权人： Minolta Camera Kabushiki Kaisha
- 当前专利权人： Minolta Camera Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX63-192466 19880801; JPX63-192467 19880801; JPX63-245132 19880929; JPX1-191085 19890724
- 主分类号： G01J1/16
- IPC分类号： G01J1/16 ; G01J3/12 ; G01J3/26 ; G01J3/28 ; H01L27/148 ; H04N5/355 ; H04N5/372
摘要：
A spectrophotometer is composed of a spectrofilter, a plurality of bandpass filters for cutting unnecessary transmission bands, and a CCD photosensor. The photosensor is composed of two sets of photosensors having different sensitivity ranges that overlap at some portion to increase the dynamic range of the device. The handling amount of charges is increased at every portion of the CCD photosensor in order to reduce the influence of the shot noise. Further, various technologies are used to enhance the accuracy and stability of the spectrophoto-measurement.
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