Invention Grant
US08477315B2 Volume hologram, light source device, illumination device, monitor, and image display device
有权
体积全息图，光源装置，照明装置，显示器和图像显示装置
- Patent Title: Volume hologram, light source device, illumination device, monitor, and image display device
- Patent Title (中): 体积全息图，光源装置，照明装置，显示器和图像显示装置
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Application No.: US12068194Application Date: 2008-02-04
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Publication No.: US08477315B2Publication Date: 2013-07-02
- Inventor: Fumika Sumiyama
- Applicant: Fumika Sumiyama
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2007-030087 20070209; JP2007-334298 20071226
- Main IPC: G01B9/021
- IPC: G01B9/021
Abstract:
A volume hologram includes: an incidence surface onto which coherent light having a plurality of wavelengths is incident; and a plurality of interference fringes having streaks so that the angles between the streaks and the incidence surface are different from each other and so that the each interference fringe corresponds to one wavelength of the coherent light.
Public/Granted literature
- US20080192259A1 Volume hologram, light source device, illumination device, monitor, and image display device Public/Granted day:2008-08-14
Information query
