| 摘要 |
When a position of an adjustable shade (4) is switched from a low beam position to a high beam position, a spring (7) acts so as to attenuate an repulsion force or attraction force of the solenoid (6) rapidly due to a sudden increase in an elastic force of the spring (7) at the end of the movement of the adjustable shade (4) toward the high beam position. As a result, the operating noise at the time of switching the position of the adjustable shade (4) is considerably reduced.
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