Title:
PROJECTOR
Document Type and Number:
Japanese Patent JP2015118362
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a projector enhancing admissibility of positional accuracy, improving contrast of an image, further controlling a boundary between a bright portion and a dark portion in an image plane of an image projected to not be conspicuous, for example, suppressing occurrence of a moire pattern and being capable of providing the excellent image.SOLUTION: A relay optical system 40 exhibits operation for deflecting light with respect to a bundle of rays passing therethrough by having an optical deflection member OC. Hereby, a cross section of the bundle of rays at an imaging position of color modulation light valves 50g, 50r and 50b is brought into a state of an appropriate size (spread). More specifically, the cross section of the bundle of rays can be adjusted so as to be brought into such a state that the cross section thereof is not completely imaged and blurred. Accordingly, a moire pattern is suppressed and an excellent image can be formed.
Inventors:
OTANI MAKOTO
Application Number:
JP2014158447A
Publication Date:
June 25, 2015
Filing Date:
August 04, 2014
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
G03B21/14; G02B3/00; G02B5/02; G02B13/00; G02B19/00; G03B21/00; H04N5/74
Domestic Patent References:
| JP2011514546A | 2011-05-06 | |||
| JP2008268271A | 2008-11-06 | |||
| JP2008191279A | 2008-08-21 | |||
| JP2008097032A | 2008-04-24 | |||
| JP2007538273A | 2007-12-27 | |||
| JP2008209670A | 2008-09-11 |
Foreign References:
| US20040228005A1 | 2004-11-18 | |||
| US20130113788A1 | 2013-05-09 |
Attorney, Agent or Firm:
Kazuaki Watanabe
Keisuke Nishida
Keisuke Nishida