Samsung Electronics Co., Ltd.

Jung-Chul Lee

Byeong-hwan Jeon

Won-Don Joo

Wook-rae Kim

Young-kyu Park

Bong-Do Kim

Jin-Woo Ahn

In-Han Kang

Sung-Hwi Cho

A total internal reflection prism unit may include a first prism and a second prism. The first prism may include a first total reflection surface, which totally reflect slight incident in a first horizontal direction along a second horizontal direction substantially perpendicular to the first horizontal direction, and a second total reflection surface, which totally reflects the totally reflected light from the first total reflection surface along the first horizontal direction to form a first beam. The second prism may include a third total reflection surface, which totally reflects the light along a third horizontal direction substantially perpendicular to the first horizontal direction, and a fourth total reflection surface, which totally reflects the totally reflected light from the third total reflection surface along the first horizontal direction to form a second beam. The second beam may be discrete from the first beam along the third horizontal direction.

Total internal reflection prism unit, total internal reflection prism assembly including the same and apparatus for forming a line beam including the same

A plasma light source apparatus includes a first laser generator configured to generate a first laser. A second laser generator is configured to generate a second laser. A chamber is configured to accommodate and seal a medium material for plasma ignition and to allow plasma to be ignited by the first laser and to be maintained by the second laser. An inner surface of the chamber includes two curved mirrors that face each other.

Plasma light source apparatus and light source system including the same

Disclosed herein is a battery pack locking apparatus for mobile communication terminals that is capable of detachably locking a battery pack to a terminal body of a mobile communication terminal. The battery pack locking apparatus includes a mounting groove formed at a prescribed position of the rear casing frame, a push locker unit mounted in the mounting groove such that the push locker unit can be moved toward the front and the rear of the terminal body when the push locker unit is pushed, a slide locker unit coupled with the push locker unit at the lower part of the push locker unit such that the slide locker unit can be slid toward the upper and lower ends of the terminal body, as the push locker unit is moved toward the front and the rear of the terminal body, for locking the battery pack to the battery pack locking space or popping the battery pack out of the battery pack locking space when the battery pack is unlocked from the battery pack locking space, and a coil spring mounted to the slide locker unit for providing an elastic force so that the push locker unit is moved toward the front and the rear of the terminal body and the slide locker unit is slid toward the upper and lower ends of the terminal body.

Battery pack locking apparatus for mobile communication terminals

A battery pack locking apparatus for a mobile telephone is disclosed, in which a locker is operable with its own mechanical structure without using a separate spring. The battery pack locking apparatus includes a locker movable in a perpendicular direction with respect to a body of the mobile telephone and mounted on a lower casing frame of the mobile telephone, and an elastic member formed on a lower surface of the locker to provide a restitution force to the locker. The elastic member is a zigzag tension rib, which is formed extending downward from the lower surface of the locker such that a free end of the tension rib should be pressingly contact the lower casing frame.

Growing community of inventors

Hwaseong-si, South Korea

Jung-Chul Lee