Valeo Japan Co., Ltd.

Masaaki Toju

Masamichi Ishibashi

Satoshi Yamaguchi

An illuminating device may include an optical guiding body configured to dispose linear optical guiding members side by side, the linear optical guiding members guiding light incident from one end side in a longitudinal direction to another end side. The illuminating device may also include optical sources to emit light toward corresponding linear optical guiding members. The optical guiding body may include first and second optical guiding members adjacent in a width direction. A luminance distribution of the light in the longitudinal direction emitted from the first optical guiding member becomes darker, and that emitted from the second optical guiding member becomes brighter, according to being closer to the other end side from the one end side. The illuminating device may further include a control unit configured to light up the optical sources of the first and second optical guiding members in order and thereafter, light them out in order.

Illuminating device with multiple optical guiding bodies having different luminance distributions

An illuminating device may include optical sources, a diffusion plate having emission regions corresponding to the optical sources, and a control unit configured to control lighting-up/lighting-out and an emission intensity of the optical sources based upon a schedule when carrying out performance on an optical travel by the diffusion plate. The emission regions each may have a predetermined length and extend in a longitudinal direction of the diffusion plate. In the schedule, a light-up/light-out state of each optical source and an emission intensity of an optical source to be lit up are set based upon an average illuminance in an illuminance distribution of the diffusion plate by combining illuminances of lights emitted from the emission regions. For realizing a temporal change of the average illuminance set, the light-up/light-out state of each optical source and emission intensity of the optical source to be lit up in each time point are set.

Growing community of inventors

Tokyo, Japan

Masaaki Toju