Stereoscopic display method of hologram and its forming method and its stereoscopic display apparatus
Patent 5644414 Issued on July 1, 1997. Estimated Expiration Date: 
March 27, 2015. 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.
March 27, 2015. 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 References 3614426 3788726 3832027 3843225 Full-color hologram Method and apparatus for 3-D image synthesis Computer aided holography and holographic computer graphics Real image holographic stereograms Holographic image recording using liquid crystal Method and apparatus for producing full color stereographic holograms InventorsAssigneeApplicationNo. 411220 filed on 03/27/1995US Classes:359/22, For producing or reconstructing images from multiple holograms (e.g., color, etc.)359/23, Holographic stereogram359/24, Superimposed holograms only359/25Discrete hologram onlyExaminersPrimary: Dzierzynski, Paul M.Assistant: Chang, Audrey Attorney, Agent or FirmForeign Patent References
International ClassesG03H 001/26G03H 001/28 Foreign Application Priority Data1992-08-21 JPAbstractA hologram of a virtual object or an object which actually exists is formed and a solid image is displayed. 3-dimensional information of the object to be displayed is divided into regions in the depth direction. Depth images are formed as 2-dimensional images where are seen from a plurality of points which are obtained by finely dividing the hologram forming surface for every region. A phase distribution at the hologram forming surface is calculated from the depth images and displayed on a liquid crystal display or the like as an electronic hologram. A reference light is irradiated onto the display and is converted into an optical wave front, thereby displaying a solid image. When forming a hologram recording medium, a zone image corresponding to each of the finely divided exposure regions of a dry plate is exposed multiple times.Other References
Field of SearchFor synthetically generating a hologramUsing modulated or plural reference beams Spatial, phase or amplitude modulation Having defined page composer For producing or reconstructing images from multiple holograms (e.g., color, etc.) Holographic stereogram Superimposed holograms only Discrete hologram only Sequential frames on moving film | |
