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Title:
HIGH EFFICIENCY NON-IMAGING OPTICS
Document Type and Number:
WIPO Patent Application WO2001069300
Kind Code:
A3
Abstract:
A highly efficient optical device comprises two opposing active non-spherical optical surfaces defined by a two-dimensional representation that is symmetrically extended to provide a three-dimensional device. A focal area, spaced apart from the optical surface and non-contiguous therewith, is defined by the two opposing active optical surfaces. The active optical surfaces each have a continuous second derivative, and the optical surfaces are defined by a polynomial with an order at least about twenty. The optical device may comprise a transparent dielectric core, and the optical surfaces may be formed on the core. A receiver may be situated at the focal area to provide a concentrator. An extended light source such as an LED may be situated at the focal area, to provide a collimator. Faceted embodiments can provide a low aspect optical device. In some embodiments a diffuser may be used to transform incident radiation into a predetermined shape.

Inventors:
MINANO JUAN CARLOS (ES)
BENITEZ PABLO (ES)
GONZALEZ JUAN C (ES)
FALICOFF WAQIDI (US)
CAULFIELD H JOHN (US)
Application Number:
PCT/US2001/008685
Publication Date:
October 03, 2002
Filing Date:
March 16, 2001
Export Citation:
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Assignee:
LED PRODUCTS INC (US)
MINANO JUAN CARLOS (ES)
BENITEZ PABLO (ES)
GONZALEZ JUAN C (ES)
FALICOFF WAQIDI (US)
CAULFIELD H JOHN (US)
International Classes:
F21V7/04; F24S23/00; F24S23/70; G02B17/00; G02B17/08; G02B19/00; H01L33/54; (IPC1-7): G02B19/00; G02B17/08; F21V7/04; G02B17/00; H01L31/052; F24J2/10
Other References:
MINANO J C ET AL: "RX: A NONIMAGING CONCENTRATOR", APPLIED OPTICS, OPTICAL SOCIETY OF AMERICA,WASHINGTON, US, vol. 34, no. 13, 1 May 1995 (1995-05-01), pages 2226 - 2235, XP000504834, ISSN: 0003-6935
MINANO J C ET AL: "NEW METHOD OF DESIGN OF NONIMAGING CONCENTRATORS", APPLIED OPTICS, OPTICAL SOCIETY OF AMERICA,WASHINGTON, US, vol. 31, no. 16, 1 June 1992 (1992-06-01), pages 3051 - 3060, XP000274823, ISSN: 0003-6935
MINANO JC ET AL: "A HIGH-GAIN, COMPACT, NONIMAGING CONCENTRATOR", APPLIED OPTICS, vol. 34, no. 34, 1 December 1995 (1995-12-01), NEW YORK US, pages 7850 - 7856, XP002182364
BENITEZ P ET AL: "ULTRAHIGH-NUMERICAL-APERTURE IMAGING CONCENTRATOR", JOURNAL OF THE OPTICAL SOCIETY OF AMERICA - A, OPTICAL SOCIETY OF AMERICA, WASHINGTON, US, vol. 14, no. 8, August 1997 (1997-08-01), pages 1988 - 1997, XP000861561, ISSN: 0740-3232
MINANO J C ET AL: "FLAT HIGH CONCENTRATION DEVICES", WORLD CONFERENCE ON PHOTOVOLTAIC ENERGY. WAIKOLOA, DEC. 5 - 9, 1994, NEW YORK, IEEE, US, vol. 1 CONF. 1, 5 December 1994 (1994-12-05), pages 1123 - 1126, XP000681371
DAVIES P A: "DESIGN OF SINGLE SURFACE SPHERICAL LENSES AS SECONDARY CONCENTRATORS FOR PHOTOVOLTAIC CELLS", PURE AND APPLIED OPTICS, vol. 2, no. 4, July 1993 (1993-07-01), BRISTOL, GB, pages 315 - 324, XP001040997, ISSN: 0963-9659
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