Projector with improved heat radiation

Details Projector with improved heat radiation Projector with improved heat radiation

2006-07-11

2006-07-11

Koval, Melissa Jan (Department: 2851)

Optics: image projectors

Temperature control

Heat resistant or insulating material

C353S031000, C353S033000, C353S060000, C353S081000, C349S009000, C349S058000, C359S627000

Reexamination Certificate

active

07073911

ABSTRACT:
An optical apparatus includes a color synthesizing prism, a plurality of exit-side polarizer plates which are respectively arranged on the light entrance side faces of the color synthesizing prism through entrance-side heat conduction plates, a plurality of liquid-crystal display devices which are respectively arranged on the entrance sides of the plurality of exit-side polarizer plates, and a plurality of entrance-side polarizer plates which are respectively arranged on the entrance sides of the plurality of liquid-crystal display devices. The entrance-side heat conduction plate which is located in the optical path of colored light generating the largest quantity of heat can be arranged in heat insulation from the entrance-side heat conduction plates which are located in the optical paths of the other colored lights, and it can be joined to an armoring case through heat conduction members.

REFERENCES:
patent: 6375328 (2002-04-01), Hashizume et al.
patent: 6473150 (2002-10-01), Takushima et al.
patent: 6619800 (2003-09-01), Takezawa et al.
patent: 6619803 (2003-09-01), Notagashira
patent: 6623129 (2003-09-01), Fujimori
patent: 6639743 (2003-10-01), Watanabe
patent: 6811262 (2004-11-01), Takezawa et al.
patent: 6877858 (2005-04-01), Notagashira
patent: 6882480 (2005-04-01), Yanagisawa
patent: 2002-214585 (2002-07-01), None
patent: 2002-229121 (2002-08-01), None
patent: 2003-075798 (2003-03-01), None

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