Invention Grant
- Patent Title: Holographic recording apparatus, holographic reproducing apparatus and holographic recording and reproducing apparatus
- Patent Title (中): 全息记录装置，全息再现装置和全息记录和再现装置
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Application No.: US12048876Application Date: 2008-03-14
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Publication No.: US07839750B2Publication Date: 2010-11-23
- Inventor: Shogo Horinouchi , Shohei Inoue , Hideaki Horio
- Applicant: Shogo Horinouchi , Shohei Inoue , Hideaki Horio
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Dickinson Wright PLLC
- Priority: JP2007-068415 20070316
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
A holographic recording apparatus causes reference light and information light to interfere with each other, and records the interference pattern in a recording medium. The holographic recording apparatus has an objective lens and a focus position controller. The objective lens focuses both the reference light and the information light at a focus position of the recording medium. The focus position controller changes the focus position into a predetermined position on the light path of the reference light.
Public/Granted literature
Information query
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