JPS646729A - Photometry probe - Google Patents

Photometry probe

Info

Publication number
JPS646729A
JPS646729A JP62160664A JP16066487A JPS646729A JP S646729 A JPS646729 A JP S646729A JP 62160664 A JP62160664 A JP 62160664A JP 16066487 A JP16066487 A JP 16066487A JP S646729 A JPS646729 A JP S646729A
Authority
JP
Japan
Prior art keywords
light
photodetector
reflected light
reference plate
optical path
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
JP62160664A
Other languages
Japanese (ja)
Inventor
Kazuyuki Ogasawara
Kengo Fukuda
Tetsuya Yoshinaga
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.)
Yamato Scale Co Ltd
Original Assignee
Yamato Scale 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 Yamato Scale Co Ltd filed Critical Yamato Scale Co Ltd
Priority to JP62160664A priority Critical patent/JPS646729A/en
Publication of JPS646729A publication Critical patent/JPS646729A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
    • G01N21/474—Details of optical heads therefor, e.g. using optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Optical Transform (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

PURPOSE:To enable measurement of color of an object to be measured accurately regardless of any change in light transmissivity due to a bending of a light guide for illumination, by providing a reference plate in an optical path to an object to be measured from the light guide for irradiation in such a manner as to be allowed to advance or retract. CONSTITUTION:A light guide 12 for illumination irradiates an object 16 to be measured with illumination light via an optical path (a). On the other hand, a light guide 14 for receiving light receives reflected light on the object 16 via an optical path (b) to be supplied to a photodetector. In a photometry probe thus arranged, for example, under a condition as indicated by the solid line, a reference plate 18 supplies reflected light therefrom 18 to the photodetector with the guide 14. Then, the reference plate 18 is turned to a position indicated by the dotted line to supply the reflected light from the object 16 to the photodetector. A photometry device body calculates a reflection factor of the object 16 from an output of the photo detector in the case of the reflected light from the object 16, an output of the photodetector in the case of the reflected light from the reference plate 18 and a predetermined constant to determine color of the object 16.
JP62160664A 1987-06-26 1987-06-26 Photometry probe Pending JPS646729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62160664A JPS646729A (en) 1987-06-26 1987-06-26 Photometry probe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62160664A JPS646729A (en) 1987-06-26 1987-06-26 Photometry probe

Publications (1)

Publication Number Publication Date
JPS646729A true JPS646729A (en) 1989-01-11

Family

ID=15719822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62160664A Pending JPS646729A (en) 1987-06-26 1987-06-26 Photometry probe

Country Status (1)

Country Link
JP (1) JPS646729A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949935B2 (en) * 1977-03-11 1984-12-05 三菱レイヨン株式会社 Method for producing methacrylic resin composition with excellent antistatic properties
JPS61292043A (en) * 1985-06-19 1986-12-22 Anritsu Corp Photodetecting probe for spectocolorimeter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949935B2 (en) * 1977-03-11 1984-12-05 三菱レイヨン株式会社 Method for producing methacrylic resin composition with excellent antistatic properties
JPS61292043A (en) * 1985-06-19 1986-12-22 Anritsu Corp Photodetecting probe for spectocolorimeter

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