Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1987003470) METHOD AND DEVICE FOR DETERMINING THE COLOUR, PARTICULARLY OF A DENTAL PROSTHESIS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1987/003470 International Application No.: PCT/FR1986/000433
Publication Date: 18.06.1987 International Filing Date: 12.12.1986
IPC:
A61C 19/10 (2006.01) ,G01J 3/02 (2006.01) ,G01J 3/28 (2006.01) ,G01J 3/46 (2006.01) ,G01J 3/50 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
C
DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
19
Dental auxiliary appliances
10
Supports for artificial teeth for transport or for comparison of the colour
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
02
Details
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
28
Investigating the spectrum
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
46
Measurement of colour; Colour measuring devices, e.g. colorimeters
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
46
Measurement of colour; Colour measuring devices, e.g. colorimeters
50
using electric radiation detectors
Applicants:
BERTIN & CIE [FR/FR]; Zone Industrielle B.P. No 3 F-78373 Plaisir, FR (AllExceptUS)
LEQUIME, Michel [FR/FR]; FR (UsOnly)
MILLET, Jocelyn [FR/FR]; FR (UsOnly)
Inventors:
LEQUIME, Michel; FR
MILLET, Jocelyn; FR
Agent:
RAMEY, Daniel; Cabinet M. Sabatier 83, avenue Foch F-75116 Paris, FR
Priority Data:
85/1854013.12.1985FR
Title (EN) METHOD AND DEVICE FOR DETERMINING THE COLOUR, PARTICULARLY OF A DENTAL PROSTHESIS
(FR) PROCEDE ET DISPOSITIF DE DETERMINATION DE LA COULEUR, EN PARTICULIER D'UNE PROTHESE DENTAIRE
Abstract:
(EN) The invention makes it possible to determine the colour to be given particularly to a dental prosthesis from the measurement of the colour of adjacent teeth in the mouth of the patient. An optical fiber instrument (44) senses the light reflected by a tooth (50) and transmits the light to the input of a spectrocolorimeter (12, 14) associated with a microprocessor (10) in order to determine the spectral reflectance diffused by the tooth and to calculate the trichromatic components of its apparent colours for various types of lighting. The invention applies particularly to the determination of colours of dental prostheses.
(FR) L'invention permet de déterminer la couleur à donner en particulier à une prothèse dentaire à partir de la mesure de la couleur des dents adjacentes dans la bouche du patient. Un instrument (44) à fibre optique permet de capter la lumière réfléchie par une dent (50) et de la transmettre à l'entrée d'un spectrocolorimètre (12, 14) associé à un microprocesseur (10), pour déterminer la réflectance spectrale diffuse de la dent et calculer les composantes trichromatiques de ses couleurs apparentes pour divers types d'éclairage. L'invention s'applique notamment à la détermination des couleurs des prothèses dentaires.
Designated States: AU, BR, JP, KR, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
IL80949BRPI8607037EP0250519US4836674KR1019880700657AU1987067393
FR2591470