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AssigneeNippon Telegraph and Telephone Corporation
InventorsYukio Takahashi, Tomoyoshi Nomura, Takayuki Okimura
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The present invention relates to a light ray shift element which provides controlled refraction of the incident ray and an optical axis displacement device using the above light ray shift element. An application of these optical devices to an interleave projection display system is demonstrated. The optical element is constructed from transparent flat plate materials containing a first optical medium and are disposed at a predetermined spacing along the optical axis. The orientation angle of the transparent flat plates with respect to the optical axis can be varied independently. A bulkhead consisting of the transparent flat plates and a second optical medium having an index of refraction different from the first optical medium, which is enclosed in a hermetic extendable seal, is utilized to provide light ray shift and optical axis displacement. By selecting the first and second optical media suitably, the angle of refraction of the incident ray can be controlled to optimize the quality of the image generated by the interleave projection system.
An interleave projection display apparatus comprising a plurality of projectors, in which each of said plurality of projectors includes a separate projector lens system and projects an image component provided on a light valve to synthesize a composite image on a screen, wherein each of a plurality of light ray shift elements provides a shift of a light ray path to a parallel path and is associated with a respective one of said plurality of projectors, and said each of said plurality of light ray shift elements is disposed on a side of a corresponding to one of each said projector lens system selected from a ray entry side and a ray exit side of said projector lens system.
An interleave projection display module system comprising:
Dependencies are inferred from the claim text.