Invention Grant
- Patent Title: Light source unit and projection type image display apparatus
- Patent Title (中): 光源单元和投影型图像显示装置
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Application No.: US11739793Application Date: 2007-04-25
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Publication No.: US07807957B2Publication Date: 2010-10-05
- Inventor: Nobuyuki Kimura
- Applicant: Nobuyuki Kimura
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2006-136003 20060516
- Main IPC: H01J3/14
- IPC: H01J3/14
Abstract:
A projection display apparatus in which the longitudinal direction of an arc type lamp is parallel with the longitudinal direction of an aperture of a polarization exchange element.
Public/Granted literature
- US20070285621A1 Projection Display Apparatus Public/Granted day:2007-12-13
Information query
