Invention Grant
- Patent Title: Video hologram and device for reconstructing video holograms
- Patent Title (中): 视频全息图和重建视频全息图的设备
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Application No.: US12902309Application Date: 2010-10-12
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Publication No.: US08174744B2Publication Date: 2012-05-08
- Inventor: Armin Schwerdtner
- Applicant: Armin Schwerdtner
- Applicant Address: DE Dresden
- Assignee: SeeReal Technologies GmbH
- Current Assignee: SeeReal Technologies GmbH
- Current Assignee Address: DE Dresden
- Agency: Saul Ewing LLP
- Priority: DE10253292 20021113
- Main IPC: G03H1/08
- IPC: G03H1/08

Abstract:
The invention relates to video holograms and devices for reconstructing video holograms, comprising an optical system having a light source, lens and the video hologram having cells arranged in a matrix or a regular pattern with at least one opening per cell, the phase or amplitude of said opening being controllable. The holographic video representations of expanded spatial objects can be achieved in a wide viewing area in real time using controllable displays, whereby the objects are either computer-generated or created by different means. The space-bandwidth product (SBP) of the hologram is thus reduced to a minimum and the periodicity interval of the Fourier spectrum is used as a viewing window on the inverse transformation plane, through which the object is visible in the preceding space. The mobility of the viewer(s) is achieved by tracking the viewing window.
Public/Granted literature
- US20110026089A1 VIDEO HOLOGRAM AND DEVICE FOR RECONSTRUCTING VIDEO HOLOGRAMS Public/Granted day:2011-02-03
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