MACRO-GRADIENT OPTICAL DENSITY TRANSMISSIVE LIGHT CONCENTRATORS, LENSES AND COMPOUND LENSES OF LARGE GEOMETRY, AND FABRICATION THEREOF

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EP 0 354 927 A1

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(43)	Date of publication:
	21.02.1990 Bulletin 1990/08

(21)	Application number: 88907902.0

(22)	Date of filing: 09.08.1988

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International Patent Classification (IPC):

G02B 6/ 028^{( . )}
F24J 2/ 08^{( . )}
G02B 19/ 00^{( . )}

C03B 19/ 09^{( . )}
G02B 3/ 00^{( . )}

(86)	International application number:
	PCT/US1988/002714

(87)	International publication number:
	WO 1989/001640 (23.02.1989 Gazette 1989/05)

(84)	Designated Contracting States:
	BE CH DE FR GB LI NL SE

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Priority:

19.08.1987 US 19870087598
17.06.1988 US 19880206109
17.06.1988 US 19880206110

(71)	Applicant: INTEGRATED SOLAR TECHNOLOGIES CORPORATION
	San Jose, CA 95131 (US)

(72)	Inventors:
	HAGERTY, James, J. Saratoga, CA 95070 (US) DANZIGER, Leslie, A. Los Altos Hills, CA 94022 (US)

(74)	Representative: Godsill, John Kenneth, et al
	Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT London WC2A 1AT (GB)

(54)	MACRO-GRADIENT OPTICAL DENSITY TRANSMISSIVE LIGHT CONCENTRATORS, LENSES AND COMPOUND LENSES OF LARGE GEOMETRY, AND FABRICATION THEREOF