| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that adjustment is required to be made for every model, that production becomes complicated, and that it becomes a cause of precision reduction, because of influence by shape and state of a lighting fixture (reflecting mirror) in this kind of a conventional optical axis adjustment device. SOLUTION: This is the optical axis adjustment device in which a female screw hole is installed, which has a spherical shape in which an outer shape has a part of the maximum diameter, or an approximately disc shape in which both end parts are removed, in which the part of the maximum diameter is composed of a nut part 3 by a polyacetal resin in which a pair of pins are protruded and formed to confront at the center point of this sphere, and of a holder part 4 formed by a nylon resin having a hollow part 4a in which the nut part is fitted capable of swinging in the interior, and in which at a position corresponding to the pin 3d of the nut part of the hollow part, an opening 4b having an appropriately larger inner diameter than the outer diameter of this pin is installed to reach the outer diameter. COPYRIGHT: (C)2006,JPO&NCIPI |
