Dai-ichi Seiko Co., Ltd.

Enplas Corporation

Teruo Hoshi

Hideaki Katoh

Nobuhisa Noguchi

Isamu Kaneko

Yutaka Kikuchi

Seiki Kitahara

Shuichi Satoh

Minoru Suzuki

Toshiaki Sugimoto

A thin illumination device providing uniform luminance distribution on the diffusing plate comprising a reflecting plate, linear light sources arranged in the vicinity of the reflecting plate and a diffusing plate arranged on the opposite side of the reflecting plate with regard to the light sources, section of the reflecting plate having a shape of continuous curves having different curvature.

Illumination device

An illumination device having a reflecting plate, at least one linear light source arranged on a first side of the reflecting plate, a diffusing plate arranged on a second side of the reflecting plate, and a light quantity adjusting member formed integrally with the reflecting plate.

An illumination device comprising a reflecting plate, a single or a plural number of linear light source(s) arranged over said reflecting plate and a diffusing plate arranged over said light source(s), a light quantity adjusting means being arranged on the surface of the linear light source on between said light source(s) and said diffusing plate, and said illumination device being so adapted as to uniformalize luminance distribution on the diffusing plate by selecting shape and size of light-transmitting portions of the light quantity adjusting means.

Growing community of inventors

Chiba, Japan

Teruo Hoshi