Lg Electronics Inc.

Jung-Hoon Choi

Young-Joo Yee

Chang-Hyeon Ji

Chang-hoon Oh

Seong-Hyok Kim

In an optical pickup head of an optical recording reproducing apparatus, a fabrication method thereof, a lubricant-coated optical pickup head of an optical recording reproducing apparatus and a method for coating lubricant onto an optical pickup head, by using a MEMS (micro electro mechanical system) technique used for designing, fabricating and application of a microstructure, it is possible to miniaturize an optical pickup head of an optical recording reproducing apparatus and reduce a fabrication cost thereof.

Optical pickup head of optical recording reproducing apparatus, fabrication method thereof, lubricant-coated optical pickup head of optical recording reproducing apparatus and lubricant coating method thereof

Disclosed are a micro-actuator, a fabrication method thereof, and a micro-actuating valve. The micro-actuating valve comprises: a first valve housing having a fluid entrance at the middle portion thereof; a second valve housing coupled to the first valve housing thus to form a space portion therein and having a fluid exit connected to the fluid entrance of the first valve housing; a plate installed at the space portion and having a micro-channel at one side thereof to be connected to the fluid exit; a plurality of micro-driving members installed to be near the plate for discharging a fluid introduced from the fluid entrance of the first valve housing to the fluid exit of the second valve housing by selectively opening and closing the micro-channel of the plate; a micro-mover suspension installed at the plate for supporting the micro-mover; a coil installed at the micro-mover; a magnet installed with a certain gap from the coil; and an electrode portion formed at the plate for is supplying a power source to the coil.

Growing community of inventors

Gyeonggi-do, South Korea

Jung-Hoon Choi