Invention Grant
- Patent Title: Proximity projector with a transmissive cover with modified reflectance properties
- Patent Title (中): 具有改进的反射特性的透射罩的接近投影机
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Application No.: US12642280Application Date: 2009-12-18
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Publication No.: US08434878B2Publication Date: 2013-05-07
- Inventor: Eiji Morikuni , Nobutaka Minefuji
- Applicant: Eiji Morikuni , Nobutaka Minefuji
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Maschoff Brennan
- Priority: JP2008-332966 20081226; JP2008-332967 20081226
- Main IPC: G03B21/28
- IPC: G03B21/28 ; G03B21/14
Abstract:
A projector includes: a projection unit that projects projection light toward an illuminated surface; a housing that houses the projection unit and has an opening that allows the projection light to exit outward; and a cover portion that blocks the opening and transmits the projection light, wherein a plurality of areas is set in the cover portion relative to the projection unit, and a process of changing the reflectance of the light-incident surface of the cover portion at which the projection light is reflected is performed on each of the areas.
Public/Granted literature
- US20100165308A1 PROJECTOR Public/Granted day:2010-07-01
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