OPTICAL INTEGRATING CHAMBER LIGHTING USING MULTIPLE COLOR SOURCES FOR LUMINOUS APPLICATIONS

Title:

OPTICAL INTEGRATING CHAMBER LIGHTING USING MULTIPLE COLOR SOURCES FOR LUMINOUS APPLICATIONS

Document Type and Number:

WIPO Patent Application WO2005106963

Kind Code:

A3

Abstract:

A system provides light of selectable spectral characteristic (e.g. a selectable color combination of light), for luminous applications such a signage and indicator lights (10). An optical integrating cavity (11) combines energy of different wavelengths from different sources, typically different colored LEDs. The cavity has a diffusively reflective interior surface (29) and an aperture (17) for allowing emission of combined light. Control of the intensity of emission of the sources sets the amount of each wavelength of light in the combined output and thus determines a spectral characteristic of the light output through the aperture. A deflector (25) shaped like a number, character, letter, or other symbol, may be coupled to a similarly shaped aperture. By combining several such fixtures, it is possible to spell out words and phrases, with selectable color lighting. Disclosed fixture examples use an extruded body member with appropriately located reflective surfaces to form both the cavity and deflector.

Inventors:

RAINS JACK C JR (US)
BATES CHRISTOPHER (US)
BROWN MATTHEW (US)

Application Number:

PCT/US2005/014092

Publication Date:

May 26, 2006

Filing Date:

April 25, 2005

Export Citation:

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Assignee:

ADVANCED OPTICAL TECH INC (US)
RAINS JACK C JR (US)
BATES CHRISTOPHER (US)
BROWN MATTHEW (US)

International Classes:

F21V1/00; B25B13/14; B25B23/00; B25B23/18; F21V9/00; G01J1/00; G01J3/10; G05D25/02; H01L31/00; H05B44/00; F21V7/22; F21V14/06; F21Y101/00; F21Y113/20

Foreign References:

US6149283A

2000-11-21

Other References: