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US 5,296,883 AGranted
Lamp changing system in LCD projector
AssigneeGoldstar Co., Ltd.
InventorsHong C. Park, Hee S. Koo
Life of this patent
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Abstract
A lamp changing system is an LCD projector, comprising a reflective facet, a rotary plate having a plurality of arc-tubes and blocks disposed thereon, and a cam member having an upper cam and a lower cam, whereby upon rotating the cam member, an old arc-tube is separated from and new arc-tube is replaced for the old arc-tube as a light source for the LCD projector.
Claims11
A lamp changing system in a liquid crystal display projector comprising:
- a reflective facet,
- a rotary plate disposed at the rear side of said reflective facet, said rotary plate including:
- a plurality of arc-tubes biased by a spring disposed within an elastic tube box, and
- a plurality of blocks disposed closer to a center of said rotary plate than said plurality of arc-tubes,
- an upper cam for supplying an electric source by moving one of said plurality of arc-tubes toward said reflective facet, and
- a lower cam for moving one of said plurality of blocks so as to rotate said rotary plate, whereby when the one of the plurality of arc-tubes has been used for its useful life, the one of the plurality of arc-tubes is separated from the electrode source and another of said plurality of arc-tubes is replaced a light source for the liquid crystal display projector.
3 more elements
A lamp changing system in a liquid crystal display projector comprising:
- a reflective facet;
- means for rotating a rotary plate having a plurality of arc-tubes;
- means for inserting one of the plurality of arc-tubes into said reflective facet;
- means for supplying power to said inserted arc-tube;
- and
- means for separating said inserted arc-tube from said reflective facet.
3 more elements
Dependencies are inferred from the claim text.