Illuminating lamp and vehicle head lamp, using light emitting diode

摘要

An illuminating lamp and a vehicle head lamp, using a light emitting diode, respectively, are capable of not only keeping the same brightness as obtained at the time of lighting after many hours from the lighting, but also being usable for many hours without deterioration in efficiency besides advantages of providing a high output in low power consumption, a long service life, and a simple structure. The illuminating lamp comprises a light source support made up of an upper structure and a lower structure, the upper structure being linked with the lower structure via the heat conduction bar, wherein the light source support is inserted into an aluminum heat-release mount, thereby causing heat generated from the light emitting diode to be released into the aluminum heat-release mount through cooling of the heat conduction bar.

主权项

1. An illuminating lamp using a light emitting diode, the illuminating lamp including:
a light source support made up of an upper structure where an aluminum sheet fixed to a semiconductor substrate with a light emitting diode mounted thereon is directly fixed to a region of the surface of a heat conduction bar made of copper, with other than the region thereof with the aluminum sheet fixed thereto being coated with aluminum up to a mouth piece in such a way as to form light-shielding walls, and a lower structure having a long heat conduction bar made of copper, the upper structure being linked with the lower structure via the heat conduction bar made of copper, wherein the light source support is inserted into an aluminum heat-release mount, a central part thereof being hollow, through a mouth piece, via the heat conduction bar made of copper, to be secured at a position where the tip of the heat conduction bar made of copper reaches a point deep inside the hollow part of the aluminum heat-release mount, thereby causing heat generated from the light emitting diode to be released into the aluminum heat-release mount through cooling of the heat conduction bar made of copper by the air inside the hollow part.