Samsung Electro-mechanics Co., Ltd.

Oui Serg Kim

Byung Woo Kang

Dae Hyun Jeong

Jung Ho Ryu

Yong Joo Jo

Jung Kyun Cho

Hyung Min Choi

Il Woo Seok

Provided is a compact lens module which enables zoom and auto-focus functions even in a small lens module by providing a lens carrying structure using a supersonic driving unit. A lens unit is positioned in a case and has at least one lens. A carrying member is rotatably connected in the case and connected to the lens unit so that the lens unit may move forward and backward. In addition, a driving unit is mounted in the case for transferring a driving force to the carrying member so as to move the lens unit by repeatedly contacting and non-contacting with the carrying member.

Compact lens module

A driving device, and more particularly, a lens driving device, for transporting a lens of an optical instrument via separate actuation of the lens itself includes guide elements connected perpendicularly with the lens for guiding reciprocating movement of the lens. The device further has driving elements arranged coplanar with the lens and fixed by a first end to a periphery of the lens for providing the lens with a transport force which is larger than an interactive force between the lens and the guide elements.

Driving device

The present invention relates to a lens driving device, more particularly, capable of adjusting an effective focal length determined by the relative distance of lenses in an optical device having a zooming function. In the lens driving device, a barrel unit has an internal space for containing a lens therein and a guide slot for allowing forward and backward movement of the lens through rotation of the barrel unit. A ring-shaped piezoelectric actuator unit is arranged adjacent to the barrel unit for being contracted or expanded radially in response to an external input signal. A drive member is mounted on the piezoelectric actuator unit and having a plurality of segments projected toward the barrel unit to contact the same.

Lens driving device

Growing community of inventors

Seoul, South Korea

Oui Serg Kim