Title:
ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/173583
Kind Code:
A1
Abstract:
The present invention provides an image projection device that provides excellent display performance. The image projection device includes: an optical element group including a light source; a container storing the optical element group; and a seal attached to the container covering the optical element group to seal the optical element group.
Inventors:
TOMARU TAKAHIRO (JP)
Application Number:
PCT/JP2018/005711
Publication Date:
September 27, 2018
Filing Date:
February 19, 2018
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G03B21/14; H04N5/74
Foreign References:
| JP2014194501A | 2014-10-09 | |||
| JP2007010837A | 2007-01-18 | |||
| US20120092629A1 | 2012-04-19 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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