Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/011819
Kind Code:
A1
Abstract:
According to the present embodiment, a lighting device comprises a light source (20), and at least one light distribution control member (10) for controlling the distribution of light from the light source. The light distribution control member has two optical control layers (2a, 2b) disposed facing each other across a predetermined gap and sandwiching a base material (5) having a higher refractive index than air, and the two optical control layers have first areas (3) and second areas (4) formed in patterns that correspond to each other. The light distribution control member controls light distribution by using the change in overlap between the first areas and the second areas, depending on the direction of light passing through.
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| JP2016207370 | LED LIGHTING DEVICE |
Inventors:
TAKAHASHI KEN (JP)
ONO OSAMU (JP)
MORITA SHUSUKE (JP)
YOKOTA MASAHIRO (JP)
KAWAMURA NOBUO (JP)
OOKAWA TAKESHI (JP)
MATSUDA HIDEMI (JP)
OOTA HIDEO (JP)
NISHIMURA TAKASHI (JP)
ONO OSAMU (JP)
MORITA SHUSUKE (JP)
YOKOTA MASAHIRO (JP)
KAWAMURA NOBUO (JP)
OOKAWA TAKESHI (JP)
MATSUDA HIDEMI (JP)
OOTA HIDEO (JP)
NISHIMURA TAKASHI (JP)
Application Number:
PCT/JP2012/066661
Publication Date:
January 24, 2013
Filing Date:
June 29, 2012
Export Citation:
Assignee:
TOSHIBA KK (JP)
TAKAHASHI KEN (JP)
ONO OSAMU (JP)
MORITA SHUSUKE (JP)
YOKOTA MASAHIRO (JP)
KAWAMURA NOBUO (JP)
OOKAWA TAKESHI (JP)
MATSUDA HIDEMI (JP)
OOTA HIDEO (JP)
NISHIMURA TAKASHI (JP)
TAKAHASHI KEN (JP)
ONO OSAMU (JP)
MORITA SHUSUKE (JP)
YOKOTA MASAHIRO (JP)
KAWAMURA NOBUO (JP)
OOKAWA TAKESHI (JP)
MATSUDA HIDEMI (JP)
OOTA HIDEO (JP)
NISHIMURA TAKASHI (JP)
International Classes:
F21S8/02; F21Y101/02
Foreign References:
| JP2010073685A | 2010-04-02 | |||
| JPH03167707A | 1991-07-19 | |||
| JP2006120499A | 2006-05-11 |
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
Masatoshi Kurata (JP)
Masatoshi Kurata (JP)
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Claims: