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1. WO2000039614 - OPTICAL COMMUNICATION APPARATUS

Publication Number WO/2000/039614
Publication Date 06.07.2000
International Application No. PCT/JP1999/007177
International Filing Date 21.12.1999
Chapter 2 Demand Filed 03.04.2000
IPC
H04B 10/50 2013.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
CPC
G02B 6/02033
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02033Core or cladding made from organic material, e.g. polymeric material
H04B 10/502
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
501Structural aspects
502LED transmitters
Y10T 428/2929
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
2913Rod, strand, filament or fiber
2929Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
Y10T 428/2933
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
2913Rod, strand, filament or fiber
2933Coated or with bond, impregnation or core
Y10T 428/2938
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
2913Rod, strand, filament or fiber
2933Coated or with bond, impregnation or core
2938Coating on discrete and individual rods, strands or filaments
Y10T 428/2967
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
2913Rod, strand, filament or fiber
2933Coated or with bond, impregnation or core
2964Artificial fiber or filament
2967Synthetic resin or polymer
Applicants
  • MITSUBISHI RAYON CO., LTD. [JP/JP]; 6-41, Konan 1-chome Minato-ku, Tokyo 108-8506, JP (AllExceptUS)
  • YOSHIMURA, Tomonari [JP/JP]; JP (UsOnly)
  • SAITO, Noritaka [JP/JP]; JP (UsOnly)
  • OKITA, Akimitsu [JP/JP]; JP (UsOnly)
Inventors
  • YOSHIMURA, Tomonari; JP
  • SAITO, Noritaka; JP
  • OKITA, Akimitsu; JP
Agents
  • YAMASHITA, Johei; Yamashita & Associates Toranomon 40th Mori Bldg., 13-1, Toranomon 5-chome Minato-ku, Tokyo 105-0001, JP
Priority Data
10/36730824.12.1998JP
11/19785112.07.1999JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) OPTICAL COMMUNICATION APPARATUS
(FR) APPAREIL DE COMMUNICATION OPTIQUE
Abstract
(EN)
An optical communication apparatus comprises an optical transmitter (1) which emits light signals corresponding to external electric signals (11) using light emitted from a short-wavelength light-emitting element (14) such as a yellow light-emitting diode of maximum wavelength in a range of 560-590 nm or a green light-emitting diode of maximum wavelength in a range of 490-550 nm; a plastic fiber (2) including a methacrylate polymer core free from benzene rings and having one end connected optically with the short-wavelength light-emitting element (14), the core containing less than 5 ppm free sulfur; and an optical receiver (3) having a photodetector element (31) connected optically with the other end of the plastic fiber (2) and adapted to producing an output electric signal (35) in accordance with the output from the photodetector element (31).
(FR)
L'invention porte sur un appareil de communication optique comprenant un émetteur optique (1) qui émet des signaux lumineux correspondant à des signaux électriques externes (11) au moyen d'une lumière provenant d'un élément émetteur de lumière à courte longueur d'onde (14), tel qu'une diode électroluminescente jaune ayant une longueur d'onde maximale dans une plage de 490 à 550 nm. L'appareil comprend également une fibre plastique (2) comprenant une âme polymère méthacrylate exempte de noyaux benzènes et dont une extrémité est raccordée optiquement à l'élément émetteur de lumière à courte longueur d'onde (14), ladite âme contenant moins de 5 mg/l de soufre libre. L'appareil comprend enfin un récepteur optique (3) comportant un élément photodétecteur (31) raccordée optiquement à l'autre extrémité de la fibre plastique (2) et adaptée pour produire un signal électrique de sortie (35) en conformité avec la sortie émise par l'élément photodétecteur (31).
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