Invention Grant
- Patent Title: Image display apparatus
- Patent Title (中): 图像显示装置
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Application No.: US11855078Application Date: 2007-09-13
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Publication No.: US07688399B2Publication Date: 2010-03-30
- Inventor: Makoto Fujimoto
- Applicant: Makoto Fujimoto
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA Inc IP Div
- Priority: JP2006-249254 20060914
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
An image display apparatus including a light source unit, a liquid crystal display panel, an illumination optical system leading light from the light source unit to the liquid crystal display panel, and a display optical system leading light from the liquid crystal display panel to an observer. The illumination optical system and the display optical system share an optical surface having dielectric multilayer films and being concave toward the liquid crystal display panel on a plane including a center ray corresponding to an angle of view. The optical surface reflects light from the light source unit for leading the light to the liquid crystal display panel while transmitting light reflected from the liquid crystal display panel. On the plane including the center ray, the brightness of the light-emitting surface of the light source unit is reduced toward the optical surface smaller than that in the remote from the optical surface.
Public/Granted literature
- US20080180596A1 IMAGE DISPLAY APPARATUS Public/Granted day:2008-07-31
Information query
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