Title:
LIGHT FLUX CONTROL MEMBER, LIGHT-EMITTING DEVICE, AREA LIGHT SOURCE DEVICE, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/187620
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a light flux control member with which it is possible to more appropriately distribute light from a plurality of light-emitting elements while improving handleablity at the time of mounting by disposing the light flux control member on the plurality of light-emitting elements. This light flux control member comprises: a plurality of incidence units on which light emitted from a plurality of light emitting elements is incident, and an emission unit which is disposed between the plurality of incidence units, and guides and emits therefrom the light incident on the plurality of incidence units. The plurality of incidence units each have an incidence surface, and a first reflection surface which reflects light incident on the incidence surface in a direction along a substrate. The emission unit has a second emission surface which is disposed to face the substrate and reflects light from the incidence unit, a first emission surface which is disposed to face the second emission surface and from which the light from the incidence unit is emitted, and an emission promotion part for promoting emission of light traveling between the second emission surface and the emission surface from the first emission surface.
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Inventors:
MOMOI TAKURO
Application Number:
PCT/JP2021/011438
Publication Date:
September 23, 2021
Filing Date:
March 19, 2021
Export Citation:
Assignee:
ENPLAS CORP (JP)
International Classes:
G02B17/08; F21S2/00; F21V3/00; F21V5/00; F21V5/02; F21V5/04; G02B5/00; G02B5/02; G02B5/10; G02F1/13357; F21Y105/10; F21Y115/10
Foreign References:
| JP2007329114A | 2007-12-20 | |||
| JP2019530967A | 2019-10-24 | |||
| JP2014002968A | 2014-01-09 | |||
| JP2009063684A | 2009-03-26 | |||
| JP2019012681A | 2019-01-24 | |||
| US20120069575A1 | 2012-03-22 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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