Projection-type image display device

Details Projection-type image display device Projection-type image display device

2007-04-26

2009-06-09

O'Shea, Sandra L (Department: 2875)

Illumination

Light source and modifier

With ventilating, cooling or heat insulating means

C362S362000, C362S373000, C362S613000, C362S615000, C353S087000, C353S058000, C353S052000, C353S057000

Reexamination Certificate

active

07543962

ABSTRACT:
A projection-type image display device includes three light sources respectively configured to emit a different colored outgoing light, a light combining unit configured to combine outgoing lights, and a projection unit configured to project a combined light combined by the light combining it. The projection-type image display device includes a first cooler configured to cool a first light source of the three light sources, and a second cooler configured to cool a second and a third light source of the three light sources except the first light source.

REFERENCES:
patent: 6467911 (2002-10-01), Ueyama et al.
patent: 7159987 (2007-01-01), Sakata
patent: 7175284 (2007-02-01), Fuse et al.
patent: 2004/0135874 (2004-07-01), Oehlbeck et al.
patent: 2006/0262514 (2006-11-01), Conner et al.
patent: 2001-222065 (2001-08-01), None

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