Title:
LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP2015062189
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve heat radiation performance in a case of a street light when LEDs are used as light emitting elements.SOLUTION: A lighting device includes: a device body 12; a division plate 36 attached to bosses 38 protruding from the device body 12; a substrate body 31 where multiple light emitting elements 32 are provided on one surface, the substrate body 31 disposed on the division plate 36; a translucent lens 23 including multiple recessed parts 23A and multiple protruding parts 23B at positions which continue from a square plate part contacting with the substrate body 31 and correspond to the light emitting elements 32. An entire surface of the substrate body 31 is covered by the lens 23 including the square plate part from the front surface side.
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Inventors:
KOGA RYUICHI
TODA MASAHIRO
TAKAHASHI KOJI
TODA MASAHIRO
TAKAHASHI KOJI
Application Number:
JP2014223165A
Publication Date:
April 02, 2015
Filing Date:
October 31, 2014
Export Citation:
Assignee:
TOSHIBA LIGHTING & TECHNOLOGY
International Classes:
F21S8/08; F21V5/00; F21V23/00; F21V29/00
Domestic Patent References:
| JP2012145904A | 2012-08-02 | |||
| JP2011175863A | 2011-09-08 | |||
| JP2010067367A | 2010-03-25 | |||
| JPH08116096A | 1996-05-07 | |||
| JP2008294386A | 2008-12-04 |
Attorney, Agent or Firm:
Kumagai Masatoshi