| 摘要 |
PROBLEM TO BE SOLVED: To enable to aim at enlarging luminous area per piece of LED and accordingly, to aim at both cost reduction and improvement of illumination quality. SOLUTION: A light room 7 is built by covering an opening of a lamp housing 2 with an outer lens 3 with an LED 1 and a reflector 4 in the inside, and light of the LED 1 is made reflected by the reflector 4 and radiated outside via the outer lens 3. The LED 1 is installed in opposition to a Fresnel lens 8, arranged at the side of the light room 7, and the reflector 4 is structured with a lens reflector 5 fitted diagonally in opposition to the Fresnel lens 8 for reflecting light of the LED 1 transmitting the Fresnel lens 8 in the direction contrary to the outer lens 3, and a diffusion reflector 6 fitted opposite on other side of the outer lens of the lens reflector 5 for diffusing and reflecting reflected light of the lens reflector 5 to radiate forward through the lens reflector 5 and the outer lens 3. |
