Title:
LUMINAIRE, AND SIGN
Document Type and Number:
Japanese Patent JP2004165103
Kind Code:
A
Abstract:
To make the seeds match to the needs in the field of road signs by causing a luminescent diode for emitting at a low cost and high efficiency.
A light fitting is provided with the luminescent diode, whose mounting part for mounting a luminescent element is disposed heat-transferably on a heat-dissipating means, having a heat-dissipating surface, on either end of a tubular material having fine unevenness on the inner surface thereof and the light transmission properties. The luminescent diode is used as a light source for a sign, and caused to emit by a larger current than a luminescent element melt loss current of the luminescent element alone.
Inventors:
Hirata, Masahiko
Yamaguchi, Noritoshi
Yamaguchi, Noritoshi
Application Number:
JP2002000361469
Publication Date:
June 10, 2004
Filing Date:
November 11, 2002
Export Citation:
Assignee:
APEKKUSU ENERGY KK
International Classes:
E01F9/00; E01F9/016; F21S2/00; F21V5/04; F21V19/00; F21V29/00; H01L33/22; H01L33/50; H01L33/54; H01L33/56; H01L33/60; H01L33/62; H01L33/64; F21W111/02; F21Y101/02; (IPC1-7): F21S2/00; E01F9/00; E01F9/016; F21V5/04; F21V19/00; F21V29/00; H01L33/00
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