OPTICALLY ANISOTROPIC PHOTOCHROMIC MATERIALS AND APPLICATIONS

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EP 0 390 878 A1

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(43)	Date of publication:
	10.10.1990 Bulletin 1990/41

(21)	Application number: 89906397.0

(22)	Date of filing: 22.05.1989

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International Patent Classification (IPC):

C09K 9/ 02^{( . )}
G02F 1/ 01^{( . )}
G02F 1/ 19^{( . )}
G02F 3/ 00^{( . )}
G03C 1/ 685^{( . )}

G02B 5/ 23^{( . )}
G02F 1/ 17^{( . )}
G02F 1/ 35^{( . )}
G03C 1/ 00^{( . )}
G03C 1/ 73^{( . )}

(86)	International application number:
	PCT/GB1989/000557

(87)	International publication number:
	WO 1989/011674 (30.11.1989 Gazette 1989/28)

(84)	Designated Contracting States:
	DE FR NL

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Priority:

25.05.1988 GB 19880012328

(71)	Applicant: PLESSEY OVERSEAS LIMITED
	Ilford Essex IG1 4AQ (GB)

(72)	Inventors:
	GROVES-KIRKBY, Christopher, John Northampton NN7 3PF (GB) TRUNDLE, Clive Northampton NN12 8HR (GB)

(74)	Representative: Woodcraft, David Charles
	High Holborn House 52/54 High Holborn London WC1V 6SE London WC1V 6SE (GB)

(54)	OPTICALLY ANISOTROPIC PHOTOCHROMIC MATERIALS AND APPLICATIONS