JPS57533A - Color difference meter - Google Patents

Color difference meter

Info

Publication number
JPS57533A
JPS57533A JP7460480A JP7460480A JPS57533A JP S57533 A JPS57533 A JP S57533A JP 7460480 A JP7460480 A JP 7460480A JP 7460480 A JP7460480 A JP 7460480A JP S57533 A JPS57533 A JP S57533A
Authority
JP
Japan
Prior art keywords
measured
light
casting
rotary disc
filters
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
JP7460480A
Other languages
Japanese (ja)
Inventor
Hikari Ohata
Toshinori Inoue
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP7460480A priority Critical patent/JPS57533A/en
Publication of JPS57533A publication Critical patent/JPS57533A/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
    • G01J3/46—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
    • 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
    • G01J3/513—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters having fixed filter-detector pairs
    • 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
    • G01J2003/466—Coded colour; Recognition of predetermined colour; Determining proximity to predetermined colour
    • 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
    • G01J3/501—Colorimeters using spectrally-selective light sources, e.g. LEDs

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

PURPOSE:To eliminate the need for any integrating sphere and reduce the number of photodetectors by casting the light from a projector successively to the plural filters disposed to a rotary disc, casting the light transmitted through the filters to an object to be measured and receiving the same in a photodetecting part. CONSTITUTION:The light from a projector 2 is cast to a filter 4 by rotating a rotary disc 3, and only the light transmitted through the filter is cast to an object 1 to be measured. This is received in a photodetecting part 7 and is photoelectrically converted with a photodetector 9. With other two filters 5, 6, the similar operation is carried out, and the colors of the object to be measured are measured. If an optical fiber for projection is provided between the object 1 and the rotary disc 3 and an optical fiber for photodetection is provided between the part 7 and the object 1, the measurement in a narrow place becomes easy. Thereby, the need for an integrating sphere for casting the received light uniformly to three photodetectors is eliminated, and just one piece of photodetector is required.
JP7460480A 1980-05-31 1980-05-31 Color difference meter Pending JPS57533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7460480A JPS57533A (en) 1980-05-31 1980-05-31 Color difference meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7460480A JPS57533A (en) 1980-05-31 1980-05-31 Color difference meter

Publications (1)

Publication Number Publication Date
JPS57533A true JPS57533A (en) 1982-01-05

Family

ID=13551926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7460480A Pending JPS57533A (en) 1980-05-31 1980-05-31 Color difference meter

Country Status (1)

Country Link
JP (1) JPS57533A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62252609A (en) * 1986-04-25 1987-11-04 Showa Alum Corp Production of multihole aggregated extrudate
JPS6453121A (en) * 1987-08-24 1989-03-01 Toyo Ink Mfg Co Color discriminating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62252609A (en) * 1986-04-25 1987-11-04 Showa Alum Corp Production of multihole aggregated extrudate
JPS6453121A (en) * 1987-08-24 1989-03-01 Toyo Ink Mfg Co Color discriminating device

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