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Title:
LENS AND PLANAR ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/117159
Kind Code:
A1
Abstract:
A lens according to an embodiment covers, in the emission direction, a plurality of point light-sources that are disposed in a row. The lens comprises: a main surface which is an emission surface; a plurality of recesses which are recessed from the main surface toward the rear surface in the thickness direction, at positions corresponding to the point light-sources; and a reflection part that causes light reflected from the main surface to the rear surface side to be reflected back to the main surface side.

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Inventors:
MUKUMOTO SUGURU (JP)
ITO GINGA (JP)
MORISHITA TOMOAKI (JP)
Application Number:
PCT/JP2018/045541
Publication Date:
June 20, 2019
Filing Date:
December 11, 2018
Export Citation:
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Assignee:
MINEBEA MITSUMI INC (JP)
International Classes:
F21V5/00; F21S2/00; F21V5/02; F21V5/04; F21V7/00; F21V17/00; G02B3/00; G02B3/04; G02B5/08; F21Y105/10; F21Y115/10
Domestic Patent References:
WO2011001752A12011-01-06
WO2016013083A12016-01-28
Foreign References:
JP2001351424A2001-12-21
JP2014232712A2014-12-11
JP2009192915A2009-08-27
JP2011165590A2011-08-25
JPH10106327A1998-04-24
JP2011086569A2011-04-28
JP2009026611A2009-02-05
JP2015216104A2015-12-03
Attorney, Agent or Firm:
TORANOMON INTELLECTUAL PROPERTY FIRM (JP)
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