| 摘要 |
PURPOSE:To continuously and easily control the angle of a light source in plural directions by adding a contact part to a light source holding member together with a part to be touched where the contact part can have a slidable touch added to a fixing member for the holding member and at the same time forming the contact part on a curved surface having a prescribed curvature. CONSTITUTION:A contact part is added to a holding member 22 which holds a light source 32 and at the same time a part 26 to be touched where the contact part can have a sliding touch is added to a fixing member 21 for the member 22. Then the contact part is formed at least on a curved surface having a prescribed curvature. In this case, the center of curvature of the curved surface is set at the same point as a light emitting point 32b of the light source 32. In such a constitution, the contact part is slid to the part 26 and the tilt of the member 22 is continuously changed. Furthermore the center of curvature of the contact part is set at a point equal to the point 32b. As a result, the relative position change is prevented between the point 32b and the member 21 at the angle control. Thus the angle of the light source can be continuously controlled in plural directions. |
