Patent ID: 6339681
Filing Date: 2002-01-15
Classification: G02B

Abstract:
An apparatus comprising:(A) a first optical unit constituting part of an optical system; (B) a first motor which drives said first optical unit; (C) a second optical unit constituting part of said optical system, said second optical unit being disposed behind said first optical unit; (D) a second motor which drives said second optical unit; (E) a control device which controls said first motor and said second motor in such a way as to move in said second optical unit and move said first optical unit into a space made vacant by moving in said second optical unit in response to an instruction for stowing said optical system, said control device controlling said first motor in such a way as to move said first optical unit into said space after said space is made vacant by moving in said second optical unit; (F) a position detector which detects a reference position of said second optical unit; and (G) a nonvolatile memory which stores an amount of movement of said second optical unit from the reference position detected by said position detector to a stowage completion position where said second optical unit is completely stowed, said amount of movement stored in said nonvolatile memory being set individually for said apparatus, wherein said control device controls said second motor in such a way as to complete stowing said second optical unit by moving in said second optical unit by said amount of movement stored in said nonvolatile memory from the reference position detected by said position detector.