Title:
SIGNAL LIGHT UNIT HAVING HEAT DISSIPATING FUNCTION
Document Type and Number:
WIPO Patent Application WO/1986/002985
Kind Code:
A1
Abstract:
A signal light unit having a heat dissipating function includes a heat radiator member (4) which is formed of a material having good thermal conductivity. The heat radiator member (4) is disposed on the reverse side of a base (3) on which are arranged a multiplicity of light-emitting diodes (1) serving as a light source of the signal light. The heat radiator member (4) is generally constituted by an assembly of fins. It is not always necessary to provide the heat radiator member (4) integrally with the reverse surface of the base (3). An endothermic member (12) may be interposed between the heat radiator member (4) and the reverse surface of the base (3).
Inventors:
TSUZAWA MASAMI (JP)
TOMINAGA MUNEHARU (JP)
UCHIYAMA YOSHINORI (JP)
WAKI OSAMU (JP)
KATO HIROSHI (JP)
MORIKAWA TADAHIRO (JP)
TOMINAGA MUNEHARU (JP)
UCHIYAMA YOSHINORI (JP)
WAKI OSAMU (JP)
KATO HIROSHI (JP)
MORIKAWA TADAHIRO (JP)
Application Number:
PCT/JP1984/000548
Publication Date:
May 22, 1986
Filing Date:
November 15, 1984
Export Citation:
Assignee:
JAPAN TRAFFIC MANAGE TECH ASS (JP)
STANLEY ELECTRIC CO LTD (JP)
KOITO KOGYO KK (JP)
STANLEY ELECTRIC CO LTD (JP)
KOITO KOGYO KK (JP)
International Classes:
B61L5/18; F21S8/00; F21S8/10; F21V29/00; F21V29/02; G08G1/095; G09F13/20; H01L33/00; (IPC1-7): F21Q3/00; F21V29/00; G09F13/20; H01L33/00
Foreign References:
| JPS59119487U | 1984-08-11 | |||
| JPS5740963U | 1982-03-05 | |||
| JPS52115171U | 1977-09-01 |
Other References:
See also references of EP 0202335A4
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