| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such a problem that since an LED is installed in an aluminum plate or the like with good thermal conductivity of an independent structure from a body that can change its light projection angle, due to directivity of its characteristics, it is difficult to take a large passage area (since the passage area is proportional to the thermal conductivity) for thermal conduction for conducting heat to the LED lighting lamp body to become a heat sink, and therefor, when light is projected to a target object by moving the plate with the LED installed, it is difficult to use the LED of high luminance. <P>SOLUTION: The shape of a contact part of the LED lighting lamp body to become a heat sink, which is made of an extrusion material same as an LED mounting base installing the LED that consists of the extrusion material such as aluminum, is made a mutually corresponding curved shape, thereby, even if the angle of the LED mounting base is changed for light projection, the heat from the LED is thermally conducted to the LED lighting lamp body with a small contact resistance. <P>COPYRIGHT: (C)2012,JPO&INPIT |
