Structure of illuminating unit and structure of illuminating...

Illumination – Light source and modifier – Including reflector

Reexamination Certificate

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Details

C362S241000, C362S346000, C362S800000, C257S098000, C313S500000

Reexamination Certificate

active

07354178

ABSTRACT:
A structure of illuminating unit includes a point-like light-emitting device, having an optical axis. An initial-stage conoid-like reflective surface has a convergent opening end and a divergent opening end. The point-like light-emitting device is located at the convergent opening end and the optical axis is toward the divergent end for emitting light. The initial-stage conoid-like reflective surface and the optical axis include an initial-stage included angle. A final-stage conoid-like reflective surface has a convergent opening end and a divergent opening end. The convergent opening end of the final-stage conoid-like reflective surface is coupled with the divergent opening end of the initial-stage conoid-like reflective surface. The final-stage conoid-like reflective surface and the optical axis include a final-stage included angle. The initial-stage included angle is larger than the final-stage included angle.

REFERENCES:
patent: 1726379 (1929-08-01), Benford
patent: 4254453 (1981-03-01), Mouyard et al.
patent: 4907044 (1990-03-01), Schellhorn et al.
patent: 6495861 (2002-12-01), Ishinaga
patent: 6547400 (2003-04-01), Yokoyama
patent: 2002/0080622 (2002-06-01), Pashley et al.
patent: WO 01/433113 (2001-06-01), None

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