Patent ID: 6321038
Filing Date: 2001-11-20
Classification: G02B

Abstract:
A lens position adjustment mechanism comprising:a motor;a rotatable cam configured to urge a lens along an optical axis of said lens when rotated by a rotational force of said motor, said cam having a load bearing surface with a first slope portion and a second slope portion, said first slope portion being opposite in orientation to said second slope portion, a length and degree of slope of said first slope portion and said second slope portion defining a range of movement of said lens along said optical axis, said first slope portion of said cam having a lesser inclined portion, configured for use in a focusing operation, and a more steeply inclined portion, configured for use in a storing mode of operation, whereinsaid lens being moved from one end of said range of movement to an opposite end of said range of movement when urged completely along said first slope portion, andsaid lens being moved from the opposite end of said range of movement to the one end of said range of movement when urged completely along said second slope portion.