Invention Grant
- Patent Title: Illumination optics and projection display apparatus
- Patent Title (中): 照明光学和投影显示装置
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Application No.: US11802840Application Date: 2007-05-25
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Publication No.: US08348438B2Publication Date: 2013-01-08
- Inventor: Masami Takauchi , Masahiko Nishihara
- Applicant: Masami Takauchi , Masahiko Nishihara
- Applicant Address: JP Tokyo
- Assignee: NEC Display Solutions, Ltd.
- Current Assignee: NEC Display Solutions, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: McGinn IP Law Group, PLLC
- Priority: JP2006-175876 20060626
- Main IPC: G03B21/28
- IPC: G03B21/28
Abstract:
An object of the present invention is to provide illumination optics that enables improvement in brightness and reestablishment of an irradiation state which is provided with illumination light and which corresponds with a display area, and is to provide illumination optics including a first fly-eye lens and a second fly-eye lens where emission light from the first fly-eye lens enter, wherein at least one of lens elements configuring the second fly-eye lens covers an irradiation area smaller than an irradiation area provided by the second fly-eye lens.
Public/Granted literature
- US20070296926A1 Illumination optics and projection display apparatus Public/Granted day:2007-12-27
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