Samsung Electronics Co., Ltd.

Seoul National University

Lg Electronics Inc.

Gun Sik Park

Jong Min Kim

Sun Hwa Kim

Chan Wook Baik

Young Mok Son

Jin Kyu So

Anurag Srivastava

An electron beam focusing electrode and an electron gun using the same may include a plate having a polygonal through-hole; at least a projecting portion formed on at least one side of the through-hole. By using the electron beam focusing electrode, a spreading phenomenon of an electron beam having a rectangular cross section may be reduced. Further, the output of the electron gun may be increased, and electron beams may be easily focused.

Electron beam focusing electrode and electron gun using the same

A tape tension controlling apparatus for a reel shift deck mechanism includes a motor, a first transfer gear coupled with a motor shaft, worm gear engaged with the first transfer gear, a second transfer gear engaged with the worm gear, a link lever rotatably connected to a shaft of the second transfer gear, a stopper for positioning a predetermined position of the reel, a reel to be displaced at a predetermined position, a tension arm inserted into a rotation shaft located at a predetermined line crossing at a right angle on segment between center portions before and behind position displacements of the reel, a tension bend provided between a fixed portion and a movable portion in order to maintain a regular tension. The link lever is driven to rotate by the motor and transmits a rotation force of the motor to the reel. The tape tension controlling apparatus is improved in that a tension of the tape is maintained with a predetermined state.

Tape tension controlling apparatus for a reel shift deck mechanism

Growing community of inventors

Seoul, South Korea

Gun Sik Park