Luminaire device that restricts light within an angular...

Details Luminaire device that restricts light within an angular... Luminaire device that restricts light within an angular...

2007-02-20

2007-02-20

Ward, John Anthony (Department: 2875)

Illumination

Light source and modifier

Including reflector

C362S147000, C362S404000, C362S551000, C362S616000, C385S901000

Reexamination Certificate

active

11202219

ABSTRACT:
A luminaire including a lamp, reflector, collimator and optional waveguide. The waveguide can be solid or hollow or include several serially-arranged total internal reflection (TIR) components for redirecting light that has entered the waveguide. In one embodiment, the TIR components are prisms, but are provided without metallized coatings thereby significantly reducing manufacturing costs. In another embodiment, components are arranged in a vertical orientation such that light is directed downward through a collimator or upward, either directly from the lamp or as a result of reflection from the reflector.

REFERENCES:
patent: 5676453 (1997-10-01), Parkyn et al.
patent: 5676457 (1997-10-01), Simon
patent: 5810469 (1998-09-01), Weinreich
patent: 5897201 (1999-04-01), Simon
patent: 6428198 (2002-08-01), Saccomanno et al.
patent: 6637924 (2003-10-01), Pelka et al.
International Search Report.

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