To ensure required heat radiation characteristics, even when heat radiating properties of a case itself deteriorates because of rise in the temperature of the case, when the heat generated by a light source is released to the case.
A light fixture 2 includes a light source 21, a light guide body 22 which guides the light generated by the light source in a required direction, and a case 23 which houses the light source and the light guide body and further includes a heat sink 24 which radiates heat generated by the light source; the heat sink is secured to the case at a position away from the light source; at its connecting part, the heat sink is thermally connected to the case; near the light source, the heat sink is so arranged as to overlap with the light source through the case; and at its sandwich structure 73, the heat sink is thermally connected to the light source.
EJIMA YOSHINORI
SUYAMA KOHEI
SANADA TAKASHI
| JP2007287463A | 2007-11-01 | |||
| JP2006269140A | 2006-10-05 | |||
| JP2007193946A | 2007-08-02 |