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Title:
PROJECTOR
Document Type and Number:
Japanese Patent JP2010169914
Kind Code:
A
Abstract:

To provide a projector capable of eliminating the problem that the dynamic range of a projection screen is large then an image projected to a screen becomes dark.

The projector 1000 has: a light source device 110; a rod integrator 300 for converting light rays from the light source device to light rays having uniform intensity distribution and projecting it from a projection plane; a pattern dim device 200 for dimming light rays projected from the rod integrator according to a dim pattern; an optical modulation device 350 for modulating light rays from the pattern dim device in accordance with image information; and a projection optical system 370 for projecting light modulated by the optical modulation device. The pattern dim device 200 is selected out of a plurality of dim patterns obtained by combining a light transmission section and a light decay section in accordance with luminance distribution of the projected screen.


Inventors:
NARIMATSU SHUJI
Application Number:
JP2009012688A
Publication Date:
August 05, 2010
Filing Date:
January 23, 2009
Export Citation:
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Assignee:
SEIKO EPSON CORP
International Classes:
G09G3/36; G03B21/00; G09G3/20; G09G3/34; H04N5/74; H04N9/31
Domestic Patent References:
JP2003149730A2003-05-21
JP2001100689A2001-04-13
JP2007199302A2007-08-09
JP2003186111A2003-07-03
Attorney, Agent or Firm:
Masahiko Ueyanagi
Osamu Suzawa
Kazuhiko Miyasaka