| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an inexpensive headlight driving device which is capable of simplifying the configuration of the device itself, and reducing the number of parts, and needs no adjustment after the assembly. <P>SOLUTION: In the headlight driving device comprising an optical system having a light source 7 and a reflector 1 and capable of generating light beams and a luminous intensity distribution variable means to turn the reflector 1 in the right-to-left or vertical direction, or in the right-to-left and vertical direction according to the steering quantity and the vehicular posture, rolling bearings 3 and 5 with sensors are used, in which angle sensors 10 and 13 are built in the rolling bearings to support rotary shafts 2a and 4a of the reflector 1. The angle sensors 10 and 13 comprise detector parts consisting of a magnetism generation member and an absolute type magnetic sensor which faces the detector parts and generates the output signal corresponding to the magnetic flux density. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
