PROBLEM TO BE SOLVED: To eliminate the need of an O ring cover when a gap between a shaft part of a mover for mirror surface angle detection and a hole of a sensor case is sealed by the O ring.;SOLUTION: O rings 104, into which shaft parts of slide blocks 90, 92 are inserted, are sandwiched between a sensor case 95 and an actuator housing 12. The sensor case 95 and the actuator housing 12 are fastened to each other by screws 86. The O rings 104 are crimped and held between the sensor case 95 and the actuator housing 12 by a screw fastening force.;COPYRIGHT: (C)2014,JPO&INPIT
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