Patent ID: 6956609

Claim:
A lens moving mechanism for controlling and monitoring movement of an imaging lens, said moving mechanism comprising: (a) a detection part for detecting a plurality of reflectivities; (b) a state indication part having arranged in order thereof first, second and third areas, said first area, including a first reflecting part and a third reflecting part, each repeatedly provided for indicating a first state to said detection part, said second area, including said first reflecting part and a second reflecting part, each repeatedly provided for indicating a second state to said detection part, and said third area, including said second reflecting part and said third reflecting part, each repeatedly provided for indicating the first state to said detection part; (c) a drive part for moving said detection part, relative to said state indication part, in a direction thereof; and (d) an identification part for identifying a position of the lens based upon a change of reflectivity in one scan of moving said detection part within a width of said state indication part along a sequence of indication of said first area and said second area and said third area of said state indication part detected by said detection part.