Title:
SURFACE-EMITTING LIGHT GUIDE, METHOD FOR MANUFACTURING SURFACE-EMITTING LIGHT GUIDE, PLANAR LIGHT SOURCE DEVICE, AND TRANSMISSION-TYPE IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/099018
Kind Code:
A1
Abstract:
The present invention provides: an easily manufactured surface-emitting light guide that can be reduced in thickness while increased in terms of the efficiency with which supplied light is used; a method for manufacturing the surface-emitting light guide; a planar light source device; and a transmission-type image display device.
The surface-emitting light guide (18) according to an embodiment is provided with: a light guide body (21) that includes a transparent substrate, the light guide body (21) causing light that has entered from a first side surface (203) that intersects a first main surface (201) to propagate towards a second side surface (204) on the opposite side from the first side surface (203), and emitting planar light in the thickness direction; and a transparent substrate sheet (22) joined on the first side surface (203) side of the first main surface (201).
Inventors:
NISHI KOJIRO (JP)
Application Number:
PCT/JP2016/085906
Publication Date:
June 15, 2017
Filing Date:
December 02, 2016
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
F21S2/00; F21V8/00; G02B6/00; F21Y105/00
Foreign References:
| JP2010050064A | 2010-03-04 | |||
| JP2013008657A | 2013-01-10 | |||
| JP2015204137A | 2015-11-16 | |||
| JP2013200971A | 2013-10-03 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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