Invention Grant
- Patent Title: Reflective liquid crystal projector
- Patent Title (中): 反光液晶投影机
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Application No.: US13010750Application Date: 2011-01-20
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Publication No.: US08690338B2Publication Date: 2014-04-08
- Inventor: Osamu Okumura
- Applicant: Osamu Okumura
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Lowe Hauptman & Ham, LLP
- Priority: JP2010-015131 20100127
- Main IPC: G03B21/14
- IPC: G03B21/14

Abstract:
A reflective liquid crystal projector according to the aspect of the invention includes a light source, a reflective liquid crystal panel, and a wire grid polarization beam splitter element. The wire grid polarization beam splitter element is provided with a polarization beam split surface that reflects a first polarized light component and transmits a second polarized light component. The reflective liquid crystal projector also includes a projection optical system that projects the first polarized light component, and an aperture stop that is disposed on an optical path of the light beam emitted from the light source. The aperture stop limits the amount of first light more than that of second light. The first light is divergent from the reflective liquid crystal panel to the polarization beam split surface. The second light is divergent from the reflective liquid crystal panel to the polarization beam split surface.
Public/Granted literature
- US20110181801A1 REFLECTIVE LIQUID CRYSTAL PROJECTOR Public/Granted day:2011-07-28
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