Patent ID: 7270432
Filing Date: 2007-09-18
Classification: B60R

Abstract:
1. An angle detection apparatus for detecting an angle of a specular surface, comprising: a slide block stressed toward an interlocking member so that rotation of the interlocking member causes the slide block to move in a direction of movement substantially perpendicular to the specular surface by an amount proportional to an amount of the rotation of the interlocking member adapted to change orientation thereof together with the specular surface so as to orient in a direction in which the specular surface is orienting; a movable member adapted to move in the direction of movement of the slide block by an amount proportional to an amount of the movement of the slide block; a moving amount detection unit adapted to detect the amount of movement of the movable member, a first elastic member provided between the movable member and the slide block to stress the slide block toward the interlocking member; and a second elastic member adapted to stress the movable member toward the first elastic member, wherein the movement of the slide block causes the movable member to move in the direction of the movement of the slide block by an amount smaller than the amount of the movement of the slide block.