JPS5684528A - Hue-discriminating device - Google Patents

Hue-discriminating device

Info

Publication number
JPS5684528A
JPS5684528A JP16077079A JP16077079A JPS5684528A JP S5684528 A JPS5684528 A JP S5684528A JP 16077079 A JP16077079 A JP 16077079A JP 16077079 A JP16077079 A JP 16077079A JP S5684528 A JPS5684528 A JP S5684528A
Authority
JP
Japan
Prior art keywords
hue
printed
patterns
photoelectric conversion
light
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.)
Granted
Application number
JP16077079A
Other languages
Japanese (ja)
Other versions
JPS6235610B2 (en
Inventor
Zene Okabe
Katsumi Kimoto
Kazumichi Nagaai
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP16077079A priority Critical patent/JPS5684528A/en
Publication of JPS5684528A publication Critical patent/JPS5684528A/en
Publication of JPS6235610B2 publication Critical patent/JPS6235610B2/ja
Granted 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
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Credit Cards Or The Like (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

PURPOSE:To shorten the time for inspection by gathering the light from a printed article for each pattern, resolving the hue of the light, subjecting the light thus processed to photoelectric conversion to compare the same with a reference value and thereby enabling discrimination of the quality of the hue of the printed article whereon a plurality of patterns are printed, by one device. CONSTITUTION:The patterns 2 and 3 on the printed article 1 irradiated by an irradiation system 15 are read respectively by optical systems 16 and 17 and further subjected to photoelectric conversion for each hue by photoelectric conversion systems 18 and 19. The signal thus obtained is sent from an analog switch 20 to an operation part 22 through an A/D converter 21, and in the part 22 the digital signal is modified in accordance with the transmission ratio of a filter and the like to calculate the composition of hue of the patterns, the result of which is sent to a comparing-judging part 23 and a control part 24. The comparing-judging part 23 compares the data of the calculation with the data 26 of the reference value, and whether the printed patterns are acceptable or not in indicated in a display device 27 through the control part 24 and is printed by a printer 28.
JP16077079A 1979-12-13 1979-12-13 Hue-discriminating device Granted JPS5684528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16077079A JPS5684528A (en) 1979-12-13 1979-12-13 Hue-discriminating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16077079A JPS5684528A (en) 1979-12-13 1979-12-13 Hue-discriminating device

Publications (2)

Publication Number Publication Date
JPS5684528A true JPS5684528A (en) 1981-07-09
JPS6235610B2 JPS6235610B2 (en) 1987-08-03

Family

ID=15722073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16077079A Granted JPS5684528A (en) 1979-12-13 1979-12-13 Hue-discriminating device

Country Status (1)

Country Link
JP (1) JPS5684528A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470702A (en) * 1980-11-06 1984-09-11 Nihon Regulator Co., Ltd. Equivalent tone region detecting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5332062U (en) * 1976-08-26 1978-03-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5332062U (en) * 1976-08-26 1978-03-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470702A (en) * 1980-11-06 1984-09-11 Nihon Regulator Co., Ltd. Equivalent tone region detecting device

Also Published As

Publication number Publication date
JPS6235610B2 (en) 1987-08-03

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