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1. (CA2072654) VISUAL IMAGE TRANSMISSION BY FIBER OPTIC CABLE

Office : Canada
Application Number: 2072654 Application Date: 02.11.1990
Publication Number: 2072654 Publication Date: 04.05.1991
Publication Kind : A1
Prior PCT appl.: Application Number:GB1990001683 ; Publication Number: Click to see the data
IPC:
G02B 6/06
H04B 17/00
H04N 1/195
H04N 5/225
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
04
formed by bundles of fibres
06
the relative position of the fibres being the same at both ends, e.g. for transporting images
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
17
Monitoring; Testing
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
04
Scanning arrangements
19
using multi-element arrays
195
the array comprising a two-dimensional array
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
222
Studio circuitry; Studio devices; Studio equipment
225
Television cameras
CPC:
H04N 1/19589
G02B 6/06
H04N 1/195
H04N 1/19594
H04N 5/2254
H04N2005/2255
H04N2201/0077
Applicants:
Inventors: DUJON, GREGORY F.
PARKER, ARTHUR B.
THOMAS, ANDREW J.
Priority Data: 8924793.6 03.11.1989 GB
Title: (EN) VISUAL IMAGE TRANSMISSION BY FIBER OPTIC CABLE
(FR) TRANSMISSION D'IMAGES PAR CABLE A FIBRES OPTIQUES
Abstract: front page image
(EN) 2072654 9106881 PCTABScor01 A method of calibrating an incoherent optical fibre bundle to be used for image transmission, by determining the relative input to output position of each fibre in the bundle and processing the light output of the bundle accordingly. The calibration technique comprises, defining an address array capable of defining for the optical bundle the position of the ends of individual optical fibres in the bundle; transmitting a series of test images into one end of the optical fibre bundle, each test image illuminating a substantial proportion of the pixels and the combination of which selectively illuminate each pixel of the address array; analysing the output of the fibre bundle with reference to the transmitted images to produce a reference table of input to output for the fibres; and using the reference table to deconvolve an image transmitted along the fibre bundle. Calibrated incoherent optical fibres are of particular use for examining nuclear reactors, chemical vats and other harsh environments.


Also published as:
ES2080841EP0498839US5327514JPH06503653DE000069024368GB2253540
DK0498839WO/1991/006881