| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a headlight for automobile which can protect a projection lens, and increase the irradiating efficiency of a light without having an adverse effect on a human body and a living substance. SOLUTION: This headlight is provided with a lamp 21 for light source, a reflector 22 which reflects the light emitted from the lamp 21, a dichroic filter 24 mounted ahead of the lamp 21 to shut down the infrared ray and ultraviolet of the above light, and a projection lens 23 which projects ahead the light passing through the dichroic filter 24 it is possible to inhibit the projection lens 23 from being deformed due to the infrared ray, and prevent a human body from having an adverse effect due to the ultraviolet.</p> |
