| 摘要 |
PURPOSE:To accomplish the focusing of a projection pattern with simple constitution by linking a 1st supporting part which supports an LED with a 2nd supporting part which supports a light projecting lens through a linking arm having flexibility and changing a relative distance between the pattern and the light projecting lens according as the linking arm is bent. CONSTITUTION:The linking arms 14a and 14b of a supporting member 14 have the flexibility, so that the rear part of the supporting member which supports the LED 10 can approach to and separate from the front part of the supporting part which supports the light projecting lens 12. Therefore, when such force that the slope 14i of the supporting member is pushed away is generated by screwing an adjusting screw 15 in, the linking arms 14a and 14b are bent and the LED 10 is moved backward and positioned, thereby changing the distance between the lens 12 and the LED 10. Thus, the focusing of the projection pattern is accomplished with the simple constitution. |
