Illumination – Work-table lighting system
Reexamination Certificate
2005-05-02
2008-09-16
Truong, Bao Q (Department: 2875)
Illumination
Work-table lighting system
C362S247000, C362S297000, C362S346000, C362S804000
Reexamination Certificate
active
07425077
ABSTRACT:
A lamp assembly adapted to cast shadow-free illumination over an area. Typically, a lamp assembly includes a plurality of light modules that are disposed in a spaced apart relationship over an area. Desirably, the lamp assembly is arranged to aim the light output of each module for overlapping summation on a target footprint. Modules generally each include a LED light source, a parabolic reflecting mirror arranged to direct light from the LED, a TIR collimating lens disposed at a distal end of the mirror, and a stray light tube disposed between the LED and a dispersing lens element.
REFERENCES:
patent: 3290496 (1966-12-01), Appleton
patent: 4298911 (1981-11-01), Headrick
patent: 5406176 (1995-04-01), Sugden
patent: 6290368 (2001-09-01), Lehrer
patent: 6478453 (2002-11-01), Lammers et al.
patent: 6692251 (2004-02-01), Logan et al.
patent: 6955444 (2005-10-01), Gupta
patent: 7275931 (2007-10-01), Katsuda et al.
patent: 2004/0141336 (2004-07-01), West et al.
patent: 2005/0099824 (2005-05-01), Dowling et al.
patent: 2005/0158687 (2005-07-01), Dahm
International Search Report from PCT/US2007/080636, dated Mar. 28, 2008, 1 page.
Written Opinion of the International Searching Authority from PCT/US2007/080636, dated Mar. 28, 2008, 7 pages.
Lockamy H. Thomas
Manglicmot Daniel B.
Spencer Jason W.
Unsworth Austin E.
Pelton & Crane
TraskBritt
Truong Bao Q
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