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1. (WO1991007681) OPTICAL IMAGE PROCESSING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/007681 International Application No.: PCT/GB1990/001740
Publication Date: 30.05.1991 International Filing Date: 12.11.1990
Chapter 2 Demand Filed: 10.06.1991
IPC:
G02B 6/06 (2006.01) ,G09F 9/00 (2006.01) ,H01J 29/89 (2006.01)
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
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9
Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
29
Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/113
86
Vessels; Containers; Vacuum locks
89
Optical or photographic arrangements structurally combined with the vessel
Applicants:
MEMOTECH COMPUTERS LIMITED [GB/GB]; Unit 24 Station Lane Witney Oxon 0X8 6BA, GB (AllExceptUS)
BOYD, Geoffrey, Arthur, Coleridge [GB/GB]; GB (UsOnly)
Inventors:
BOYD, Geoffrey, Arthur, Coleridge; GB
Agent:
GARRATT, Peter, Douglas; Mathys & Squire 10 Fleet Street London EC4Y 1AY, GB
Priority Data:
8925482.510.11.1989GB
9021405.702.10.1990GB
Title (EN) OPTICAL IMAGE PROCESSING
(FR) TRAITEMENT OPTIQUE D'IMAGES
Abstract:
(EN) An array of hollow tubes with internal reflecting surfaces is positioned in front of a CRT to provide magnification and reduce screen reflections. The magnification enables images from a stack of CRT's to be rendered contiguous. The same array can be used as a rear projection screen providing high contrast. The hollow reflection elements can be formed from a stack of corrugated laminations.
(FR) Un réseau de tubes creux présentant des surfaces réfléchissantes internes est positionné devant un tube cathodique afin de procéder à un grossissement et de réduire les réflexions de l'écran. Le grossissement permet de rendre contiguës les images d'un ensemble de tubes cathodiques empilés. On peut utiliser le même réseau comme écran de rétroprojection offrant un contraste élevé. On peut réaliser ces éléments réfléchissants creux à partir d'une pile de feuilles ondulées.
Designated States: AU, JP, KR, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1991070411