The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 1992
Filed:
May. 23, 1989
Applicant:
Inventors:
Colin M Waters, Tattingstone, GB;
Timothy J Noakes, Selbourne, GB;
Ian Pavey, Fernhurst, GB;
Chiyoji Hitomi, Tsokuba, JP;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
359 94 ; 428-1 ; 359 51 ;
Abstract
A liquid crystal device comprises a layer of fibers or filaments (15) permeated with liquid crystal material, the layer (15) being located between electrodes (13, 14) by means of which an electric field can be applied across the layer to vary the transmissivity of the liquid crystal/fiber composite. The diameters of the fibers/filaments are selected so that the light transmissivity of the composite has reduced sensitivity with respect to mismatch of the refractive indices of the liquid crystal and the fibers/filaments.