Lg Electronics Inc.

Jungsu Park

Hoon Sik Kim

Jeongwon Kim

Jeongseok Ha

Seok Heo

Sungkyeom Kim

Youngmin Jun

Jonggil Jun

Yongkwang Kim

Gyusuk Hwang

Changsin Park

Hyeonsoo Jung

Jingon Chang

Youngchul Chae

Ilgyu Kang

Kyunghoon Park

A lighting device includes a casing having an inlet that introduces external air at one side and an outlet that discharges the introduced air at the other side. A fan is located within the casing to flow external air from an inlet direction to an outlet direction. An inlet cover blocks at least an upper area of the inlet to prevent external air from being directly introduced into the inlet. An air flow channel communicates the inlet and the outside, and includes two contracting flow channels having a reducing sectional area in an advancing direction of air. The two expanding flow channels communicate with the contracting flow channels and have an increasing sectional area in an advancing direction of air, so that in a connection portion of the contracting flow channel and the expanding flow channel, the advancing direction of air is changed.

Lighting device with fan directed airflow and air filtering

A plasma lighting system is disclosed. Interference with an electronic device using the same band as that of the plasma lighting system can be avoided by changing the shape of vanes constituting a magnetron, and a filament current of the magnetron at an initial starting stage and that in a normal state are adjusted to be different, thus avoiding interference with a wireless LAN and attenuating noise, and a resonator has a mash form to increase efficiency. Because a rectangular waveguide is bent substantially at a right angle, and the magnetron and the resonator are disposed at one side on the basis of a waveguide space of the waveguide, thus reducing the size and an installation space of the plasma lighting system.

Plasma lighting system

Growing community of inventors

Seoul, South Korea

Jungsu Park