Patent ID: 6252713
Filing Date: 2001-06-26
Classification: G02B

Abstract:
An optical device with a correcting function for trembling of a focused image comprising:a holder that holds a correcting optical system for correcting a tremble of an optical axis of said optical device, said correcting optical system comprising a pair of correction lens elements, and said holder comprising:a first driving frame that is supported by a fixed frame mounted on an inner wall of said optical device and defines an opening portion; anda second driving frame that is slidably supported in said opening portion and holds said pair of correction lens elements;a first driving mechanism that drives said first driving frame of said holder along a first axis parallel to a direction of gravity, on a plane perpendicular to the optical axis of said optical device;a second driving mechanism that drives said second driving frame of said holder along a second axis perpendicular to said first axis, on said perpendicular plane; anda guide mechanism that leads said holder along said first axis when said holder is driven by said first diving mechanism;wherein said first driving mechanism and said guide mechanism are positioned proximate to a center of gravity of said holder and proximate to a position offset, in a direction along said optical axis, from a center point of said holder; andwherein said first driving mechanism and said guide mechanism are disposed on a line perpendicular to a plane containing a center of each of said pair of correction lens elements and being perpendicular to the optical axis of said optical device, said line being between said pair of correction lens elements.