IMAGE PROJECTION DEVICE

Title:

IMAGE PROJECTION DEVICE

Document Type and Number:

WIPO Patent Application WO/2014/132675

Kind Code:

A1

Abstract:

[Problem] To provide an image projection device that can display 3-D images without sacrificing brightness or resolution and can switch between 3-D and 2-D for displaying. [Solution] The image projection device is constituted by including: a light source; an illuminating optical system; a three-piece first reflective light valve group (9A) that modulates incident light on the basis of first image information; a three-piece second reflective light valve group (9B) that modulates incident light on the basis of second image information; a first prism type light combining member (6A) that combines light reflected by the first reflective light valve group (9A) on one optical axis; a second light combining member (6B) that combines light reflected by the second reflective light valve group (9B) on one optical axis; and a prism type light splitter (18) that combines light reflected by the first reflective light valve group (9A) and light reflected by the second reflective light valve group (9B) on one optical axis.

Inventors:

KITA KOJI (JP)
NAKAJIMA JYUNPEI (JP)
MANABE YUJI (JP)

Application Number:

PCT/JP2014/050070

Publication Date:

September 04, 2014

Filing Date:

January 07, 2014

Export Citation:

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Assignee:

SONY CORP (JP)

International Classes:

G03B21/14; G02B30/25; G03B21/00; H04N13/363

Domestic Patent References:

WO2012114522A1	2012-08-30
WO2011059879A1	2011-05-19
WO2009041038A1	2009-04-02

Foreign References:

JP2000059821A	2000-02-25
JP2002090874A	2002-03-27
JP2004219971A	2004-08-05
JP2007286516A	2007-11-01
JP2006039201A	2006-02-09
JPH11281931A	1999-10-15
JP2005241870A	2005-09-08
JPH11289559A	1999-10-19
JP2010122589A	2010-06-03
JP2012151713A	2012-08-09
JP2012047849A	2012-03-08
JP2009300914A	2009-12-24

Other References: