JPS6472016A - Solid-state image pickup device for spectral measurement - Google Patents

Solid-state image pickup device for spectral measurement

Info

Publication number
JPS6472016A
JPS6472016A JP6392788A JP6392788A JPS6472016A JP S6472016 A JPS6472016 A JP S6472016A JP 6392788 A JP6392788 A JP 6392788A JP 6392788 A JP6392788 A JP 6392788A JP S6472016 A JPS6472016 A JP S6472016A
Authority
JP
Japan
Prior art keywords
gain
picture elements
outputs
output
pickup device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6392788A
Other languages
Japanese (ja)
Inventor
Jun Hasegawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP6392788A priority Critical patent/JPS6472016A/en
Publication of JPS6472016A publication Critical patent/JPS6472016A/en
Pending legal-status Critical Current

Links

Landscapes

  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

PURPOSE:To smooth picture element outputs and to prevent the whole dynamic range from decreasing by providing an amplifying circuit which has plural amplification stages and selecting one amplification stage corresponding to each picture element while a picture element output is read out. CONSTITUTION:Picture elements of a CCD image sensor are divided into 1st and 2nd groups where spectral filters for short and long wavelength bands are arranged and monitor picture elements where no spectral filter is arranged. A microcomputer outputs GN1=H and GN2=L for the outputs of the 1st group picture elements, R2/r is selected as the gain of the operational amplifier 28 of an analog processing circuit 15 by turning on an FET 30, and its output is multiplied by the gain R2/r. The microcomputer outputs GN1=GN2=H for the 2nd group and a gain R3/r is selected; and GN1=GN2=L is outputted for the monitor picture elements and a gain R1/r is selected. Thus, even when there are only three kinds of the output levels of the picture elements, all output levels are made nearly uniform by switching the gains and the image pickup device can be applied to the range of an A/D converter.
JP6392788A 1988-03-16 1988-03-16 Solid-state image pickup device for spectral measurement Pending JPS6472016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6392788A JPS6472016A (en) 1988-03-16 1988-03-16 Solid-state image pickup device for spectral measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6392788A JPS6472016A (en) 1988-03-16 1988-03-16 Solid-state image pickup device for spectral measurement

Publications (1)

Publication Number Publication Date
JPS6472016A true JPS6472016A (en) 1989-03-16

Family

ID=13243467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6392788A Pending JPS6472016A (en) 1988-03-16 1988-03-16 Solid-state image pickup device for spectral measurement

Country Status (1)

Country Link
JP (1) JPS6472016A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5521673A (en) * 1992-07-06 1996-05-28 Nikon Corporation Photometric apparatus of a camera
WO2005040741A1 (en) * 2003-10-29 2005-05-06 Saika Technological Institute Foundation Spectrophotometer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5521673A (en) * 1992-07-06 1996-05-28 Nikon Corporation Photometric apparatus of a camera
WO2005040741A1 (en) * 2003-10-29 2005-05-06 Saika Technological Institute Foundation Spectrophotometer
US7489398B2 (en) 2003-10-29 2009-02-10 Saika Technological Institute Foundation Spectrophotometer
AU2004284319B2 (en) * 2003-10-29 2009-11-05 Saika Technological Institute Foundation Spectrophotometer

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