Methods and apparatus for making holograms
Patent 5796500 Issued on August 18, 1998. Estimated Expiration Date: 
September 11, 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.
September 11, 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 3542449 3560210 3614426 3652144 3903360 Layer-wise reproduction of three-dimensional objects by simultaneous super-position of encoded images Radiological installation with adjustable transmission optical attenuator Apparatus for three-dimensional viewing of magnetic resonance imaging tomograms Production of holograms Portable holographic recording apparatus InventorAssigneeApplicationNo. 454381 filed on 09/11/1995US Classes:359/24, Superimposed holograms only359/22For producing or reconstructing images from multiple holograms (e.g., color, etc.)ExaminersPrimary: Henry, Jon W.Attorney, Agent or FirmForeign Patent References
International ClassG03H 001/26AbstractA method and apparatus (300) for making holograms includes a technique for exposing a film substrate (319) or other light sensitive medium to consecutive two-dimensional images, together representative of a three-dimensional system, to generate a three-dimensional hologram of the physical system. Low beam ratios are employed to superimpose multiple (20-300) images on the substrate (319). Each image is relatively weak, but the combination of the series of weak images ultimately appears as a single clearly defined hologram.Other References
Field of SearchFor producing or reconstructing images from multiple holograms (e.g., color, etc.)Holographic stereogram Superimposed holograms only HOLOGRAPHIC SYSTEM OR ELEMENT Having particular recording medium HOLOGRAPHIC PROCESS, COMPOSITION, OR PRODUCT Composition or product or process of making the same | |
