Patent ID: 7885022

Claim:
A swinging and tilting mechanism comprising: a lens; a lens holding frame for holding the lens and having a lens holding frame outer peripheral surface and a pair of guide members connected to and extending radially outwardly from the lens holding frame outer peripheral surface and diametrically relative to each other; a fixed ring sized for slidably receiving and rotatably supporting the lens holding frame along a first radial axis extending perpendicularly to an optical axis of an optical system and for supporting the lens holding frame tiltably about a second radial axis extending perpendicularly to the optical axis, the first and second radial axes being oriented perpendicularly relative to each other; and a rotary ring slidably fitted onto an outer periphery of the fixed ring and formed with a pair of guide grooves for slidably receiving and guiding respective ones of the pair of the guide members of the lens holding frame extending first though the fixed ring and operative to rotate the lens holding frame and the fixed ring about the optical axis and to tilt the lens holding frame only about the second radial axis.