Title:
OPTICAL DEVICE, IMAGE DISPLAY DEVICE, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/221026
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an optical device, an image display device, and a display device capable of providing a high-quality image. An optical device according to the present invention includes a first lightguide member (40) having first through sixth surfaces and equipped with a first deflecting means (41), and a second lightguide member (50) having seventh through twelfth surfaces and equipped with a second deflecting means (51). The first and third surfaces (40A, 40C) are parallel to each other, the second and fourth surfaces (40B, 40D) which are perpendicular to the first and third surfaces (40A, 40C) are parallel to each other, and the seventh and ninth surfaces (50A, 50C) are parallel to the XY plane. The light entering from the fifth surface (40E) is totally reflected inside the first lightguide member (40), deflected by the first deflecting means (41), output from the third surface (40C), enters the eighth surface (50B), is totally reflected between the seventh surface (50A) and the ninth surface (50C), deflected by the second deflecting means (51), and output from the seventh surface (50A). The first deflecting means (41) is made up of a plurality of first semi-transmitting layers (42) mutually separated and arranged parallel to each other. The angles α and β are greater than zero degrees, where α and β represent the angles formed between the X axis and a line normal to the first semi-transmitting layers (42) projected onto the XZ and XY planes.
Inventors:
NAKAMURA MASATOSHI (JP)
TSUJIMURA ICHIRO (JP)
NAKATSUJI TATSUYA (JP)
MATSUYAMA TAKATOSHI (JP)
TSUJIMURA ICHIRO (JP)
NAKATSUJI TATSUYA (JP)
MATSUYAMA TAKATOSHI (JP)
Application Number:
PCT/JP2018/015247
Publication Date:
December 06, 2018
Filing Date:
April 11, 2018
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G02B27/02; G02B5/04; H04N5/64
Domestic Patent References:
| WO2006061927A1 | 2006-06-15 |
Foreign References:
| JP2015529833A | 2015-10-08 | |||
| JP2004526202A | 2004-08-26 | |||
| JPH0315815A | 1991-01-24 | |||
| JP2012252091A | 2012-12-20 | |||
| JP2001264681A | 2001-09-26 | |||
| JP2010533316A | 2010-10-21 | |||
| JP2003195019A | 2003-07-09 | |||
| US20150138451A1 | 2015-05-21 |
Attorney, Agent or Firm:
YAMAMOTO Takahisa et al. (JP)
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