Title:
ILLUMINATION LAMP AND LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP2016018593
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an illumination lamp which inhibits reduction of light flux of light, which enters into a gap formed between a heat sink and a cover and returns to the emission side, and effectively utilizes the light entering into the gap.SOLUTION: An illumination lamp of the invention includes: a translucent cylindrical cover 20; a heat sink 53 which has a fitting surface formed into a shape, which fits in a cover inner peripheral surface 22, and is held in the cover 20 with the fitting surface fitting in the cover inner peripheral surface 22, the heat sink 53 in which a substrate 52, on which LED elements 51 are mounted, is installed; and a high reflection layer 54 which is formed on the fitting surface of the heat sink 53 and has reflectivity higher than reflectivity of a material of the heat sink 53.SELECTED DRAWING: Figure 3
Inventors:
NISHIOKA TSUNETO
Application Number:
JP2014138453A
Publication Date:
February 01, 2016
Filing Date:
July 04, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
MITSUBISHI ELECTRIC CORP
MITSUBISHI ELECTRIC CORP
International Classes:
F21K9/00; F21S2/00; F21V3/02; F21V7/22; F21V19/00; F21V29/00; F21V29/505; H01L33/00
Domestic Patent References:
| JP2011044306A | 2011-03-03 | |||
| JP2014099414A | 2014-05-29 | |||
| JP3097580U | 2004-01-29 |
Foreign References:
| WO2014006901A1 | 2014-01-09 |
Attorney, Agent or Firm:
Tadahiko Inaba
Kanako Murakami
Shigeaki Matsui
Kuratani Yasutaka
Kanako Murakami
Shigeaki Matsui
Kuratani Yasutaka
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