CA1080996A - Colorimetre trichromatique avec compensation due aux reflexions internes - Google Patents

Colorimetre trichromatique avec compensation due aux reflexions internes

Info

Publication number: CA1080996A
Authority: CA; Canada
Prior art keywords: unknown; output; signal; electrical signal; light beam
Prior art date: 1976-11-02
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.): Expired

Application number

CA289,544A

Other languages

English (en)

Inventor

Park French

William H. Conaway

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.)

Sterndent Corp

Original Assignee

Sterndent Corp

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.)

1976-11-02

Filing date

1977-10-26

Publication date

1980-07-08

1976-11-02 Priority claimed from US05/737,905 external-priority patent/US4131367A/en

1977-10-26 Application filed by Sterndent Corp filed Critical Sterndent Corp

1980-07-08 Application granted granted Critical

1980-07-08 Publication of CA1080996A publication Critical patent/CA1080996A/fr

Status Expired legal-status Critical Current

Links

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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
- G01J3/02—Details
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/10—Supports for artificial teeth for transport or for comparison of the 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
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0218—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using optical fibers
- 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
- G01J3/465—Measurement of colour; Colour measuring devices, e.g. colorimeters taking into account the colour perception of the eye; using tristimulus detection

Landscapes

Physics & Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
General Physics & Mathematics (AREA)
Health & Medical Sciences (AREA)
Epidemiology (AREA)
Animal Behavior & Ethology (AREA)
General Health & Medical Sciences (AREA)
Public Health (AREA)
Veterinary Medicine (AREA)
Life Sciences & Earth Sciences (AREA)
Dentistry (AREA)
Oral & Maxillofacial Surgery (AREA)
Spectrometry And Color Measurement (AREA)
Mechanical Light Control Or Optical Switches (AREA)

CA289,544A 1976-11-02 1977-10-26 Colorimetre trichromatique avec compensation due aux reflexions internes Expired CA1080996A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/737,905 US4131367A (en)	1976-09-07	1976-11-02	Tristimulus colormeter with internal reflectance compensation

Publications (1)

Publication Number	Publication Date
CA1080996A true CA1080996A (fr)	1980-07-08

Family

ID=24965766

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA289,544A Expired CA1080996A (fr)	1976-11-02	1977-10-26	Colorimetre trichromatique avec compensation due aux reflexions internes

Country Status (4)

Country	Link
JP (1)	JPS5357886A (fr)
CA (1)	CA1080996A (fr)
DE (1)	DE2746677A1 (fr)
FR (1)	FR2369543A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4420260C2 (de) *	1994-06-10	1998-08-06	Alfred Prof Dr Ing Leipertz	Verfahren zur Bestimmung von Farbwertanteilen und Farbsättigung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1213634A (en) *	1967-03-01	1970-11-25	Solartron Electronic Group	Improvements in digital voltmeters
US3685048A (en) *	1970-09-30	1972-08-15	Bendix Corp	Self-calibrating analog to digital converter with predetermined transfer characteristics
US3681577A (en) *	1970-10-30	1972-08-01	Technicon Instr	Automatic calibration apparatus
US3986777A (en) *	1974-08-22	1976-10-19	Weber Dental Mfg. Co., Div. Of Sterndent Corporation	Tristimulus colorimeter for use in the fabrication of artificial teeth
US3958236A (en) *	1974-12-18	1976-05-18	Weston Instruments, Inc.	Offset control in autozeroing circuits for analog-to-digital converters
US3955096A (en) *	1975-06-19	1976-05-04	E. I. Du Pont De Nemours And Company	Implicit ratio computer for sequential signals

1977
- 1977-10-18 DE DE19772746677 patent/DE2746677A1/de not_active Withdrawn
- 1977-10-26 CA CA289,544A patent/CA1080996A/fr not_active Expired
- 1977-10-27 FR FR7732465A patent/FR2369543A1/fr not_active Withdrawn
- 1977-11-01 JP JP13036077A patent/JPS5357886A/ja active Pending

Also Published As

Publication number	Publication date
DE2746677A1 (de)	1978-05-03
FR2369543A1 (fr)	1978-05-26
JPS5357886A (en)	1978-05-25

Legal Events

Date	Code	Title	Description
1997-07-08	MKEX	Expiry

Publication	Publication Date	Title
US4131367A (en)	1978-12-26	Tristimulus colormeter with internal reflectance compensation
DE3726524C2 (fr)	1989-09-28
US4553848A (en)	1985-11-19	Method of detecting and evaluating photometric signals and device for carrying out the method
US4729657A (en)	1988-03-08	Method of calibrating reflectance measuring devices
JPH073364B2 (ja)	1995-01-18	光ファイバ分光計／比色計装置
US3446972A (en)	1969-05-27	Automatic gain control for photomultiplier tubes employing a monitoring photocell
EP0635127A1 (fr)	1995-01-25	Dispositif perfectionne et methode pour mesurer optiquement des caracteristiques d'une substance
JP2604754B2 (ja)	1997-04-30	分光光度計
EP0317603A1 (fr)	1989-05-31	Camera video pour images fixes avec circuit commun pour la commande de l'exposition et l'equilibrage des couleurs.
US3531202A (en)	1970-09-29	Spectrometer readout system
CA1080996A (fr)	1980-07-08	Colorimetre trichromatique avec compensation due aux reflexions internes
JPH0140949B2 (fr)	1989-09-01
EP0091692B1 (fr)	1988-03-02	Méthode et appareil pour mesurer le spectre de matériaux
US4577105A (en)	1986-03-18	Method of determining masses of absorbing components of a sample in a test volume and a device for implementation of this method
US4194838A (en)	1980-03-25	Digital color densitometer and exposure meter
CA1062812A (fr)	1979-09-18	Detecteur de rapport a controle continu
US4076425A (en)	1978-02-28	Opacity measuring apparatus
US5117101A (en)	1992-05-26	Tristimulus color recognition system with means for compensating for variations in light source color
US4666301A (en)	1987-05-19	Radiation responsive integrating amplifier
EP0268660A1 (fr)	1988-06-01	Circuit de detection optique pour instrument photometrique
US3927317A (en)	1975-12-16	Blank value storing photometer circuitry
US3650630A (en)	1972-03-21	Forced zero subsystem, particularly for electro-optic background cancellation systems
JPH03181825A (ja)	1991-08-07	光子計数測光装置
JPH05264352A (ja)	1993-10-12	分光光度計
RU2096763C1 (ru)	1997-11-20	Спектральный анализатор