Real time autostereoscopic displays using holographic diffusers
Patent 4799739 Issued on January 24, 1989. Estimated Expiration Date: 
August 10, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 10, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesHolographic projection screen Patent #: 4500163 InventorAssigneeApplicationNo. 07/084326 filed on 08/10/1987US Classes:359/15, Using a hologram as an optical element359/462STEREOSCOPICExaminersPrimary: Arnold, Bruce Y.Attorney, Agent or FirmInternational ClassesG02B 27/22 (20060101)G02B 5/32 (20060101) AbstractMethods and apparatus for providing real time autostereoscopic displays using holographic diffusers are disclosed. In accordance with the method, a diffuse holographic optical element is fabricated whereby an image projected onto the diffused holographic optical element will be viewable only over a limited horizontal extent of less than the separation of a typical viewer's eyes. Then the holographic optical element is used as a projection screen for a plurality of projectors spatially positioned with respect to each other so that the horizontal position within which the image of each projector is viewable is substantially contiguous with the horizontal position of viewability of the respective adjacent projector whereby the autostereoscopic effect is achieved. Various embodiments, including the transmission mode and reflection mode holographic optical elements, are disclosed.Other References
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