Title:
LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP2014232659
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lighting device which inhibits light unevenness on a reflection surface and achieves good light extraction efficiency without using a lens having different specifications.SOLUTION: A lighting device includes: a square shape reflection umbrella 110 which has an opening part 110a at an upper part and expands outward from the upper part toward the down side; and a light emitting unit 120 which has multiple LED packages and is provided on the reflection umbrella 110 so that the multiple LED packages face the opening part 110a of the reflection umbrella 110. A rear surface of the reflection umbrella 110 includes: a square shape first reflection surface 112 provided around the opening part 110a; and second reflection surfaces 113, each of which is provided at an area ranging from a side of the first reflection surface 112 to a lower end of the reflection umbrella 110 and curves outward.
More Like This:
| WO/2003/062703 | LAMPS |
| WO/2003/056240 | MODULAR SERVICE UNIT |
Inventors:
SHIMAMURA SHO
IWASE KAZUHIRO
MATSUDA SEIJI
IWASE KAZUHIRO
MATSUDA SEIJI
Application Number:
JP2013113272A
Publication Date:
December 11, 2014
Filing Date:
May 29, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
MITSUBISHI ELECTRIC CORP
MITSUBISHI ELECTRIC CORP
International Classes:
F21S8/02; F21V7/06; F21V7/09
Domestic Patent References:
| JP2008052939A | 2008-03-06 | |||
| JPH07263753A | 1995-10-13 | |||
| JP2011060488A | 2011-03-24 | |||
| JPS59115513U | 1984-08-04 |
Foreign References:
| WO2012032978A1 | 2012-03-15 |
Attorney, Agent or Firm:
Hisao Kobayashi
Kiyoshi Ajima
Norio Takanashi
Santo Rare [origin]
Takashi Ogawa
Murata 健誠
Hajime Otani
Kiyoshi Ajima
Norio Takanashi
Santo Rare [origin]
Takashi Ogawa
Murata 健誠
Hajime Otani