Illuminating device and image display device using the same

Details Illuminating device and image display device using the same Illuminating device and image display device using the same

2008-07-01

2008-07-01

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C362S277000, C362S297000, C353S097000

Reexamination Certificate

active

07394057

ABSTRACT:
An illuminating device according to the present invention comprises a first reflector for irradiating forward light beams from a light source, a second reflector that has an aperture and is disposed in front of the first reflector so as to reflect toward the light source the light beams from the first reflector to condense the light beams, a third reflector disposed so as to make the light beams condensed by the second reflector exit through the aperture, and a reflector moving means that moves the second reflector or the third reflector along an optical axis.

REFERENCES:
patent: 4434367 (1984-02-01), Yonezawa
patent: 6923546 (2005-08-01), Kurematsu
patent: 6999245 (2006-02-01), Choi
patent: 2007/0171646 (2007-07-01), Kojima
patent: 2002-023266 (2002-01-01), None

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