A lens transfer device with an actuator, a pressing member and a guide

摘要

The invention provides a lens transfer device including at least one lens and a lens barrel (110). The lens barrel has a lens receiving part with the lens arranged in an inner space thereof and an extension (112) extending radially from an outer surface of the lens receiving part. An actuator (120) has a body and an output member (122) at a leading end of the actuator to contact the extension, and is adapted to expand/contract and bend in response to an external supply voltage to provide a driving force necessary for transfer of the lens barrel through the output member. A pressing member (130) has a free end contacting a rear end of the actuator to force the actuator against the extension, and a guide (140) guides the transfer of the lens barrel along an optical axis.