METHOD AND APPARATUS FOR ADJUSTING POSITION OF OPTICAL ELEMENT

摘要

An apparatus for adjusting a position of an optical element is disclosed. The apparatus includes: a support; a movement unit for supporting an optical element and being movable relative to the support; a magnet unit; a coil unit for generating a magnetic force for moving the movement unit when an electrical signal is applied; a sensor unit disposed in a position corresponding to the magnet unit for detecting a relative position of the movement unit with respect to the support; a locking unit for limiting or allowing movement of the movement unit; and a controlling unit connected to the coil unit for controlling the coil unit and determining whether the movement unit is in a state where movement of the movement unit is limited by the locking unit based on a signal output from the sensor unit.

主权项

1. An apparatus for adjusting a position of an optical element, the apparatus comprising:
a support; a movement unit for supporting an optical element and being movable relative to the support; a magnet unit disposed on one selected from the group consisting of the support and the movement unit; a coil unit disposed on the other of the group consisting of the support and the movement unit to correspond to the magnet unit for generating a magnetic force for moving the movement unit when an electrical signal is applied; a sensor unit disposed in a position corresponding to the magnet unit for detecting a relative position of the movement unit with respect to the support; a locking unit for limiting or allowing movement of the movement unit; and a controlling unit connected to the coil unit for controlling the coil unit and determining whether the movement unit is in a state where movement of the movement unit is limited by the locking unit, based on a signal output from the sensor unit.