ELLIPSE ROLLER, LENS BARREL USING SAME ELLIPSE ROLLER, AND OPTICAL EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide an ellipse roller which makes it possible to adjust the quantity of play between a roll, used as a driven member for a lead groove or cam groove, and the lead groove or cam groove with high precision without placing any large load on a necessary space nor cost, a lens barrel which uses the ellipse roller, and optical equipment.;SOLUTION: The ellipse roller in a long circular external shape which is used as the driven member for the lead groove or cam groove is equipped with a fixed engagement part for fixing and holding the ellipse roller by a holding means and a slide engagement part for engaging the lead groove or cam groove, , the slide engagement part having the same center shaft with the fixed engagement part.;COPYRIGHT: (C)2004,JPO