| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a displacement device for correcting a change in a geometrical shape characteristic of a light beam caused by thermal deformation of a component of a lighting system and/or a signal device of an automobile, and to provide a control method of the displacement device. <P>SOLUTION: This displacement device includes a compensating means (133) electrically controlled, and extending so as to compensate for the thermal effect which has an influence on a geometrical shape of the light beam radiated from the lighting system and/or the signal device. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
