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Title:
LIGHTING DEVICE, IMAGE DISPLAY DEVICE, AND PROJECTOR
Document Type and Number:
Japanese Patent JP2011100739
Kind Code:
A
Abstract:

To provide a lighting device capable of restraining enlargement and complication of the device, or increase of device cost and effectively lighting a designated surface.

The lighting device 1 has a light-concentrating optical system 3 for light-concentrating a plurality of incident laser beams L1, and a diffused optical element 4 for creating diffused light L2 by diffusing the light light-concentrated with the light-concentrating optical system 3. A first surface 11 is illuminated with the diffused light L2.


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Inventors:
YAMAUCHI TAISUKE
Application Number:
JP2010268693A
Publication Date:
May 19, 2011
Filing Date:
December 01, 2010
Export Citation:
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Assignee:
SEIKO EPSON CORP
International Classes:
F21S2/00; G03B21/00; G03B21/14; H04N5/74
Domestic Patent References:
JP2002268001A2002-09-18
JP2004357110A2004-12-16
JP2005099160A2005-04-14
JP2002184206A2002-06-28
JP2004304186A2004-10-28
JP2002090635A2002-03-27
JP2003524195A2003-08-12
JP2001507139A2001-05-29
Attorney, Agent or Firm:
Kazuya Nishi
Masatake Shiga
Kazunori Onami



 
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