JPS6472015A - Controller for solid-state measuring element for spectral measurement - Google Patents

Controller for solid-state measuring element for spectral measurement

Info

Publication number
JPS6472015A
JPS6472015A JP22931587A JP22931587A JPS6472015A JP S6472015 A JPS6472015 A JP S6472015A JP 22931587 A JP22931587 A JP 22931587A JP 22931587 A JP22931587 A JP 22931587A JP S6472015 A JPS6472015 A JP S6472015A
Authority
JP
Japan
Prior art keywords
data
bit
integration
integration time
msb
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
JP22931587A
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 JP22931587A priority Critical patent/JPS6472015A/en
Publication of JPS6472015A publication Critical patent/JPS6472015A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/2803—Investigating the spectrum using photoelectric array detector

Abstract

PURPOSE:To take a measurement with high accuracy by using an integration type solid-state image pickup, high accuracy by switching the integration time of charge accumulation in the states and selecting one of outputs of integration with plural integration times to widen a dynamic range. CONSTITUTION:The FLG(L) (L: output number of picture element) of a CCD picture element where a spectral filter is arranged is decided and when it is '0', data is read in and its most significant digit bit (MSB) is decided. When MSB = 0, I (index of integration time) is increased by one and the integration time is doubled to decide the MSB again. When I = 4, the I is not increased any more, so data is selected here and multiplied by 2<4-1> to standardize data in each integration time. For example, 12-bit data obtained with I=1 (double integration time) is multiplied by 2<3> to set a bit 16 to '0', thereby obtaining 16-bit data. At this time, data up to a bit 3 is obtained. Namely, data which has high accuracy up to low-order bit of 16 bits as the integration time is increased is obtained.
JP22931587A 1987-09-11 1987-09-11 Controller for solid-state measuring element for spectral measurement Pending JPS6472015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22931587A JPS6472015A (en) 1987-09-11 1987-09-11 Controller for solid-state measuring element for spectral measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22931587A JPS6472015A (en) 1987-09-11 1987-09-11 Controller for solid-state measuring element for spectral measurement

Publications (1)

Publication Number Publication Date
JPS6472015A true JPS6472015A (en) 1989-03-16

Family

ID=16890213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22931587A Pending JPS6472015A (en) 1987-09-11 1987-09-11 Controller for solid-state measuring element for spectral measurement

Country Status (1)

Country Link
JP (1) JPS6472015A (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
JP2010261861A (en) * 2009-05-08 2010-11-18 Ricoh Co Ltd Spectral characteristics acquisition apparatus, image evaluation apparatus, and image forming apparatus

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
JP2010261861A (en) * 2009-05-08 2010-11-18 Ricoh Co Ltd Spectral characteristics acquisition apparatus, image evaluation apparatus, and image forming apparatus

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