Lite-On Technology Corporation

Lite-On Electronics (Guangzhou) Limited

Wei-Chung Cheng

Chun-Wei Liang

Jun-Feng Lin

A linear light source emits light beams for illuminating a target. The linear light source includes a light guide, and a light-emitting unit. The light guide has a bottom surface, first and second reflecting surfaces extending from opposite side edges of the bottom surface, and a light converging convex surface extending between the first and second reflecting surfaces, curved outward, and having multiple radii of curvature. The light-emitting unit emits light beams that exit through the light converging convex surface to converge at multiple points distributed at distinct positions in a direction perpendicular to a surface of the target, such that the target to be disposed within a range defined by the multiple points is evenly illuminated.

Linear light source, light guide, and optical scanning module

A light-guiding cover includes a light input surface defining a central axis and a light output surface. The light-guiding cover has a reflecting portion formed therein and substantially symmetrical about the central axis. The reflecting portion surrounding the central axis has an outer reflecting surface and an inner reflecting surface. The light input surface is defined into two regions, an inner region and an outer region, by the reflecting portion. The outer reflecting surface of the reflecting portion is arranged away from the central axis, the inner reflecting surface of the reflecting portion is arranged near to the central axis. Thus, the light-guiding cover of the instant disclosure can guide the light beams emanated from a LED to travel in certain optical paths and provide uniformly distributed lighting. Moreover, the instant disclosure also provides an illumination device having the light-guiding cover that can omni-directionally illuminate.

Growing community of inventors

Taipei, Taiwan

Wei-Chung Cheng