To obtain light emission having high luminance and uniform lightness over the entire surface by a surface-emitting device which is used as the back light of a liquid crystal panel, etc.
A container-shaped main body 1 has a semiconductor light emitting device 2, having a light emitting element 4 connected electrically to a conductive material such as a wiring board, arranged nearly at the center of the bottom surface side and also internally has a reflecting surface 1c, which reflects the light from the semiconductor light emission device 2 in a light emission direction, and a light diffusion sheet 13 is arranged on the upper-end side of the main body 1 and causes the light from the semiconductor light emission device 2 to diffuse and reflecting surface 1c outwardly in the light emission direction. The semiconductor light emitting device 2 is equipped with a light distribution head, which uniformizes the irradiating light quantity distribution of the light from a light emitting element 4 sunk into the main body 1 in the main body.
YAMAGUCHI KAZUYA
TAKESAKO KOICHI
INOUE TOMIO
| JPH10285340A | 1998-10-23 | |||
| JPS6068584U | 1985-05-15 | |||
| JPS594655U | 1984-01-12 | |||
| JPH1022528A | 1998-01-23 | |||
| JPH08111545A | 1996-04-30 | |||
| JPS61206212U | 1986-12-26 | |||
| JPH0429379A | 1992-01-31 | |||
| JPH1140858A | 1999-02-12 |