Industry Patents

Patent: 6751027

Projector With Sealed Inner Compartment

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Patent Number:	6751027
Title:	Projector With Sealed Inner Compartment
Abstract:	A projector is provided which can handle high light intensities without dust or foreign matter penetrating the inside of the apparatus and thus deteriorating the quality of the image projected. The projector apparatus comprises a spatial light modulator (SLM) unit provided with a plurality of reflective SLMs and a prismatic light splitting/combining unit. The SLM unit is enclosed in a substantially sealed chamber. A heat path for cooling each SLM is provided, whereby the heat path connection is through the wall of the substantially sealed chamber. In this way, heat energy from the main heat source inside the sealed chamber is brought outside the sealed chamber for dissipation.
Country of Issue:	US
First Named Inventor:	Van Den Bossche, Vandorpe, Maes
Assignee:	Barco
Continuation or Divisional of:
International Classification:	G02B 27/14
US Classification:	359/634
Issue Date:	06-15-2004
Filing Date:	08-06-2001
Application :	09/923085
Notes:
Link to Patent at freepatentsonline.com:	6751027 at Freepatentsonline
Link to World Patent Family¹:	World Patent Family at European Patent Office
Link to Google Patents¹:	6751027 at Google Patents

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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