| 摘要 |
PURPOSE:To eliminate a dark zone, by integrating a forward parallel light ray reflector and a sideward scattered light ray reflector with each other on the reflection face of a housing. CONSTITUTION:The forward parallel light ray reflector 6 shaped as a paraboloid and sideward scattered light ray reflector 7 shaped as saw teeth are integrated with each other on the housing 1 shaped as a box. A part of light emitted from a bulb 3 is reflected by the reflector 6 so that parallel rays of light are projected to a spherical-prism-shaped central part 21 of a lens 2. Another part of the light emitted from the bulb 3 is reflected by the reflector 7 so that scattered rays of light are projected to a spherical-prism-shaped peripheral part 21 of the lens 2. Another small part of the light from the bulb 3 is directly transmitted through an angular-prism- shaped part 22 of the lens 2. Forward parallel light ray reflectors and sideward scattered light ray reflectors may be alternately provided. |
