FR2413645A1 - APPARATUS TO MEASURE DIFFERENCES IN COLORS - Google Patents

APPARATUS TO MEASURE DIFFERENCES IN COLORS

Info

Publication number
FR2413645A1
FR2413645A1 FR7836716A FR7836716A FR2413645A1 FR 2413645 A1 FR2413645 A1 FR 2413645A1 FR 7836716 A FR7836716 A FR 7836716A FR 7836716 A FR7836716 A FR 7836716A FR 2413645 A1 FR2413645 A1 FR 2413645A1
Authority
FR
France
Prior art keywords
appliance
box
light source
light beam
colors
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
FR7836716A
Other languages
French (fr)
Other versions
FR2413645B3 (en
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.)
Daido Kogyo Co Ltd
Original Assignee
Daido Kogyo 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 Daido Kogyo Co Ltd filed Critical Daido Kogyo Co Ltd
Publication of FR2413645A1 publication Critical patent/FR2413645A1/en
Application granted granted Critical
Publication of FR2413645B3 publication Critical patent/FR2413645B3/fr
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
    • 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

Abstract

CET APPAREIL COMPREND UN BOITIER 1A, UNE SOURCE LUMINEUSE 1 LOGEE DANS LE BOITIER POUR PRODUIRE UN FAISCEAU LUMINEUX DIRIGE SUR LE CORPS 4 A EXAMINER, DES LENTILLES CONVERGENTES 2, 2 DISPOSEES SUR LE PARCOURS DU FAISCEAU LUMINEUX, UN DISPOSITIF 5 POUR RECEVOIR LA LUMIERE REFLECHIE PAR LE CORPS 4 ET POUR MESURER DES DIFFERENCES CHROMATIQUES, AINSI QUE DES FILTRES OPTIQUES 6, 1 DE POUVOIRS ABSORBANTS DIFFERENTS PLACES DANS LE BOITIER. SELON L'INVENTION, LES FILTRES 6, 1 SONT MONTES DE MANIERE QUE CHAQUE FILTRE PUISSE ETRE DISPOSE SEUL ENTRE LA SOURCE LUMINEUSE 1 ET LE CORPS 4, PAR EXEMPLE PAR LEUR DISPOSITION EN UN CERCLE SUR UN DISQUE ROTATIF QUE PEUT FAIRE TOURNER UN MOTEUR ELECTRIQUE 8. L'APPAREIL EST UTILISABLE POUR DETERMINER DES DIFFERENCES CHROMATIQUES SUR DES OBJETS PLACES A L'INTERIEUR DU BOITIER DE L'APPAREIL MAIS AUSSI SUR DE GRANDS OBJETS SE TROUVANT A L'EXTERIEUR, DES CARROSSERIES D'AUTOMOBILES PAR EXEMPLE.THIS APPARATUS INCLUDES A BOX 1A, A LIGHT SOURCE 1 HOUSED IN THE BOX TO PRODUCE A LIGHT BEAM DIRECTED ON THE BODY 4 TO BE EXAMINED, CONVERGENT LENSES 2, 2 ARRANGED ON THE PATH OF THE LIGHT BEAM, RECEIVER DEVICE 5 BY BODY 4 AND TO MEASURE CHROMATIC DIFFERENCES, AS WELL AS OPTICAL FILTERS 6, 1 OF DIFFERENT ABSORBENT POWERS PLACED IN THE HOUSING. ACCORDING TO THE INVENTION, FILTERS 6, 1 ARE MOUNTED SO THAT EACH FILTER CAN BE PLACED ALONE BETWEEN LIGHT SOURCE 1 AND BODY 4, FOR EXAMPLE BY THEIR ARRANGEMENT IN A CIRCLE ON A ROTARY DISC THAT CAN TURN AN ELECTRIC MOTOR 8. THE APPLIANCE CAN BE USED TO DETERMINE CHROMATIC DIFFERENCES ON OBJECTS PLACED INSIDE THE CASE OF THE APPLIANCE BUT ALSO ON LARGE OBJECTS LOCATED OUTSIDE, AUTOMOBILE BODIES FOR EXAMPLE.

FR7836716A 1977-12-29 1978-12-28 APPARATUS TO MEASURE DIFFERENCES IN COLORS Granted FR2413645A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17843977 1977-12-29

Publications (2)

Publication Number Publication Date
FR2413645A1 true FR2413645A1 (en) 1979-07-27
FR2413645B3 FR2413645B3 (en) 1981-10-16

Family

ID=16048531

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7836716A Granted FR2413645A1 (en) 1977-12-29 1978-12-28 APPARATUS TO MEASURE DIFFERENCES IN COLORS

Country Status (6)

Country Link
DE (1) DE2855578A1 (en)
FR (1) FR2413645A1 (en)
GB (1) GB2012448A (en)
IT (1) IT1110856B (en)
NL (1) NL7812613A (en)
SE (1) SE7812977L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0065363A1 (en) * 1981-05-14 1982-11-24 Satake Engineering Co., Ltd. Photoelectric detection device for color sorting apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4624572A (en) * 1982-02-05 1986-11-25 Den Bosch Francois J G Van Non-invasive reflectance spectrophotometric apparatus
DE3238840A1 (en) * 1982-10-20 1984-04-26 Helge Georg 6380 Bad Homburg Steckmann Device for measuring rays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0065363A1 (en) * 1981-05-14 1982-11-24 Satake Engineering Co., Ltd. Photoelectric detection device for color sorting apparatus

Also Published As

Publication number Publication date
SE7812977L (en) 1979-06-30
IT1110856B (en) 1986-01-06
FR2413645B3 (en) 1981-10-16
GB2012448A (en) 1979-07-25
NL7812613A (en) 1979-07-03
DE2855578A1 (en) 1979-07-05
IT7852487A0 (en) 1978-12-29

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Legal Events

Date Code Title Description
ST Notification of lapse