Invention Grant
- Patent Title: Security holograms
- Patent Title (中): 安全全息图
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Application No.: US12599403Application Date: 2008-05-07
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Publication No.: US08503052B2Publication Date: 2013-08-06
- Inventor: Patrick Flynn , John David Wiltshire
- Applicant: Patrick Flynn , John David Wiltshire
- Applicant Address: GB Halstead
- Assignee: Ver-Tec Security Systems Limited
- Current Assignee: Ver-Tec Security Systems Limited
- Current Assignee Address: GB Halstead
- Priority: GB0709110.1 20070511
- International Application: PCT/GB2008/050334 WO 20080507
- International Announcement: WO2008/139220 WO 20081120
- Main IPC: G03H1/00
- IPC: G03H1/00 ; G03H1/20 ; G03H1/04

Abstract:
We describe techniques for recording a holographic image onto holographic recording film, in particular for security holograms. We thus describe a structure having a stack comprising the holographic recording film and a multichannel image generation device under the film. A three-dimensional object (or hologram of a 3D object) is provided, located under the multichannel image generation device. At least a portion of the multichannel image generation device is substantially transparent or absent in a region above the object. A holographic image is recorded in the film by illuminating the stack with laser light. The multichannel image generation device under the film may comprise a volume reflection hologram of a lenticularly generated image. The structure records a hologram of the 3D object in conjunction with a multi-channel holographic image.
Public/Granted literature
- US20100195175A1 Security Holograms Public/Granted day:2010-08-05
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