Free-cavity, double-diffusing indirect lighting luminaire

Details Free-cavity, double-diffusing indirect lighting luminaire Free-cavity, double-diffusing indirect lighting luminaire

2006-05-23

2006-05-23

Alavi, Ali (Department: 2875)

Illumination

Supports

Ceiling-suspended support

C362S147000, C362S299000, C362S308000, C362S328000

Reexamination Certificate

active

07048416

ABSTRACT:
A lighting system and device for providing indirect light using free-cavity, double-diffusing configurations are disclosed. In accordance with the embodiments of the invention, a lighting fixture comprises a cover structure with a diffusion layer and a reflective plate that form the free-cavity. The free-cavity is preferably configured to provide an output of light from a light source positioned within the free-cavity with an efficiency rating of 70% or more and provide better than an 8:1 ceiling lighting contrast between the rows of fixtures with rows on 16 feet spacing. Further, in accordance with a preferred embodiment of the invention, a device is configured to couple to a ceiling structure and provide the indirect lighting from a fluorescent light source.

REFERENCES:
patent: 4866584 (1989-09-01), Plewman
patent: 4974137 (1990-11-01), Evans et al.
patent: 5705804 (1998-01-01), Ramer et al.
patent: 5733028 (1998-03-01), Ramer et al.
patent: 5773819 (1998-06-01), Ramer et al.
patent: D405906 (1999-02-01), Herst et al.
patent: 5877490 (1999-03-01), Ramer et al.
patent: 5877849 (1999-03-01), Ramer et al.
patent: 5884994 (1999-03-01), Herst et al.
patent: 5886351 (1999-03-01), Ramer et al.
patent: 5914487 (1999-06-01), Ramer et al.
patent: 5967652 (1999-10-01), Ramer et al.
patent: 6007225 (1999-12-01), Ramer et al.
patent: 6033093 (2000-03-01), Latsis et al.
ZX, “The Flexible Lighting System”, Lighting Solutions for every Application, 1998.
Avante, Architectural Lighting, Direct/ Indirect General Lighting System, AV 2′×4′, 1997.
FineLite, Better Lighting for a Better Workplace, Series 14, 1998.
Alera Lighting, “Uniquely Styled Indirect Lighting with Unsurpassed Optics”, 1999.
Lighting Sciences Inc., Certified Test Report No. 17472, Jan. 16, 2003.
Lighting Sciences Inc, Certified Test Report No. 17651, Feb. 25, 2003.
ITL Boulder Test Report, May 14, 2002.
FineLite, “School Lighting”, Oct. 13, 1999.

Affiliated with

Also associated with

Rating

Free-cavity, double-diffusing indirect lighting luminaire does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Free-cavity, double-diffusing indirect lighting luminaire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Free-cavity, double-diffusing indirect lighting luminaire will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3544480