Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/009039
Kind Code:
A2
Abstract:
Disclosed is a light device comprising: a diffusion unit for diffusing and radiating light incident from a light source; and a condensing unit installed on a light radiating surface of the diffusion unit, including a micro lens array of lenses having sag determined depending on one of a light emitting area of the lighting device and total light flux of the lighting device. Thus, the lighting device can reduce a light flux emitted at the angle between 65 deg and 90 deg, thereby meeting UGR conditions.
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Inventors:
LEE DONG HYUN (KR)
SEONG DONG MUG (KR)
HONG BEOM SUN (KR)
EOM JUN PHILL (KR)
SEONG DONG MUG (KR)
HONG BEOM SUN (KR)
EOM JUN PHILL (KR)
Application Number:
PCT/KR2012/005361
Publication Date:
January 17, 2013
Filing Date:
July 06, 2012
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
LEE DONG HYUN (KR)
SEONG DONG MUG (KR)
HONG BEOM SUN (KR)
EOM JUN PHILL (KR)
LEE DONG HYUN (KR)
SEONG DONG MUG (KR)
HONG BEOM SUN (KR)
EOM JUN PHILL (KR)
International Classes:
F21V5/04; F21V8/00
Foreign References:
| JP2010039091A | 2010-02-18 | |||
| JP2010217660A | 2010-09-30 | |||
| US6871982B2 | 2005-03-29 | |||
| KR20090020961A | 2009-02-27 |
Other References:
See references of EP 2732205A4
Attorney, Agent or Firm:
KIM, In Han et al. (80 Soosong-Dong, Chongro-Ku, Seoul 110-733, KR)
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Claims: