| 摘要 |
PROBLEM TO BE SOLVED: To stably guide a cam pin along a cam groove to be moved, by providing the cam pin in a tip part of an overhung arm part extended from a lens- barrel and by maintaining the cam pin in a condition that the cam pin is pressed onto the cam groove with elastic force of the arm part, in a lens driving device for moving a lens along an optical axis direction using the cam pin guided by the cam groove formed in an inner circumferential face of the lens-barrel. SOLUTION: A cam pin 25a(26a) is implanted in an overhung input arm part 21b(22b) provided to direct its rear side toward a rear part of a lens frame 21a(22a), and an input pin 25(26) supporting the cam roller 25b(26b) is inserted into a cam groove 27a(27b) penetrated through a straight cam hole 24a formed in a fixed lens-barrel 24, and formed in a turning lens-barrel 27 provided to cover an outside of the fixed lens-barrel 24. A projected height of the cam pin 25a(26a) is adjusted to be conformed to a deep portion of the cam groove 27a(27b), and the input pin 25(26) is thereby pressed to the cam groove 27a(27b) by elasticity of the input arm part 21b(22b).
|
