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1. (WO1992009909) FIBRE-OPTICAL LIGHT-EMITTING DEVICE AND METHOD FOR USING SAME
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009909 International Application No.: PCT/FR1991/000925
Publication Date: 11.06.1992 International Filing Date: 22.11.1991
Chapter 2 Demand Filed: 16.06.1992
IPC:
F21V 8/00 (2006.01) ,G02F 1/01 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
8
Use of light guides, e.g. fibre optic devices, in lighting devices or systems
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
Applicants:
BECHELANI, Jean-François [FR/FR]; FR
NAOUM, Joseph [FR/FR]; FR
LAU PAU, Yves [FR/FR]; FR
Inventors:
BECHELANI, Jean-François; FR
NAOUM, Joseph; FR
LAU PAU, Yves; FR
Common
Representative:
BECHELANI, Jean-François; 36, rue de Picpus Bât. B4 no. 102 F-75012 Paris, FR
Priority Data:
90/1460423.11.1990FR
Title (EN) FIBRE-OPTICAL LIGHT-EMITTING DEVICE AND METHOD FOR USING SAME
(FR) DISPOSITIF POUR EMETTRE DE LA LUMIERE A L'AIDE D'UNE FIBRE OPTIQUE, ET PROCEDE DE MISE EN ×UVRE DE CE DISPOSITIF
Abstract:
(EN) A light-emitting device including a light source (3) placed at the end of an optical fibre. The fibre's sheath comprises defined areas (4, 6, 8, 10, 12) of concentrated and deliberately added impurities, which areas are formed using conventional microelectronics doping processes such as diffusion and ion implantation allowing the refractive index to be varied in said areas so that said index, which is different in each area, is higher than that of the core, whereby an optical filter is formed through which light of a single colour escapes in a controlled manner. The device is designed for luminescent textiles and all kinds of luminous accessories, and is also applicable to computer screens and other visual interfaces.
(FR) Dispositif d'émission de lumière comprenant une source lumineuse (3) placée à l'extrémité d'une fibre optique. L'enveloppe de cette fibre comporte des zones définies (4, 6, 8, 10, 12), constituées de concentrations d'impuretés introduites volontairement. Ces zones sont créées par des processus de dopage traditionnels utilisés en microélectronique, tels que la diffusion, l'implantation ionique, qui permettent de faire varier l'indice de réfraction dans ces zones, de telle sorte que cet indice, différent dans chacune des zones, soit supérieur à celui du c÷ur de façon à constituer un filtre optique par où la lumière s'échappe, de manière contrôlée, avec une couleur unique. Le dispositif selon l'invention est destiné à des textiles luminescents, tous types d'accessoires lumineux, et s'étend aussi aux écrans de visualisation pour ordinateurs ou autres interfaces visuelles.
Designated States: CA, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
EP0558600JPH06502929CA2095434