Invention Grant
- Patent Title: Display apparatus and projection type lighting apparatus therefor
- Patent Title (中): 显示装置及投影型照明装置
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Application No.: US13021101Application Date: 2011-02-04
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Publication No.: US08733953B2Publication Date: 2014-05-27
- Inventor: Koji Hirata , Masahiko Yatsu , Takanori Hisada , Hidehiro Ikeda
- Applicant: Koji Hirata , Masahiko Yatsu , Takanori Hisada , Hidehiro Ikeda
- Applicant Address: JP Tokyo
- Assignee: Hitachi Consumer Electronics Co., Ltd.
- Current Assignee: Hitachi Consumer Electronics Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2007-048335 20070228
- Main IPC: G03B21/20
- IPC: G03B21/20

Abstract:
A display apparatus includes a light source which is configured to emit a light, a first light modulation unit which is configured modulate the light emitted from said light source, a first drive unit which is configured to drive said first light modulation unit, a projection unit, which is configured to project the light from said first light modulation unit enlargedly, a second light modulation unit, which is configured to modulate the light emitted from said projection unit so as to be emitted to an observer side, a second drive unit which is configured to drive said second light modulation unit, and an optical direction conversion unit, which is configured to convert the light from said projection unit so that the light is incident upon an incident surface of said second light modulation unit in a direction approximately perpendicular thereto.
Public/Granted literature
- US20110128472A1 Display Apparatus And Projection Type Lighting Apparatus Therefor Public/Granted day:2011-06-02
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