Cooling structure of projecting apparatus

Details Cooling structure of projecting apparatus Cooling structure of projecting apparatus

2008-06-26

2011-12-27

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Temperature control

Blower

C353S057000, C353S061000, C362S294000, C362S373000

Reexamination Certificate

active

08083357

ABSTRACT:
A projecting apparatus cooling structure is provided in which a discharge lamp can be always kept at an appropriate temperature whether the projecting apparatus is horizontally installed on a flat surface for forward projection or for downward projection or suspended from the ceiling for forward projection or for upward projection, so that the reliability and safety of the discharge lamp is improved and so that the life of the discharge lamp can be extended. The projecting apparatus projects an image for display using a discharge lamp as a light source. The projecting apparatus includes an air inlet for taking in a cooling medium for cooling the projecting apparatus, an air outlet for exhausting the cooling medium for cooling the projecting apparatus, a plurality of fans which each let the cooling medium flow in a predetermined direction, and a control section which detects a position in which the projecting apparatus is installed, and controls the plurality of fans according to the position detected by the position sensor.

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