Title:
OPTICAL LENS, AND LIGHT UNIT AND LIGHTING DEVICE HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2017/142349
Kind Code:
A1
Abstract:
In one embodiment, disclosed is an optical lens comprising: first and second bottom surfaces spaced apart from each other at the lower part of a transparent body, and having the lengths which are longer in a second axial direction than in a first axial direction; a recess disposed between the first and second bottom surfaces, and having the length which is long in the second axial direction; a plurality of incident surfaces having a first incident surface on the upper surface of the recess, and a second incident surface and a third incident surface, which respectively correspond to both side surfaces of the recess; a first total reflection surface and a second total reflection surface, which are arranged on the side surfaces, opposite to each other, of the body; and a first light-emitting surface at the center of the upper part of the body, and second and third light-emitting surfaces at both sides of the first light-emitting surface.
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Inventors:
KANG MIN SOO (KR)
Application Number:
PCT/KR2017/001784
Publication Date:
August 24, 2017
Filing Date:
February 17, 2017
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
G02B19/00; F21K9/60; F21V5/04; F21V8/00; G02B3/00; H01L33/50; H01L33/52
Foreign References:
| JP2010153138A | 2010-07-08 | |||
| KR20150092429A | 2015-08-13 | |||
| KR101282265B1 | 2013-07-10 | |||
| JP2007059073A | 2007-03-08 | |||
| JP2014143147A | 2014-08-07 |
Attorney, Agent or Firm:
KIM, Ki Moon (KR)
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