Side-emitting LED Lens Design for Planar Lighting Module
Side-emitting LED (Light emitting diode) modulation lens is proposed here for generating planar lighting source can be applied in many fields like LCD backlight or general lighting. The light emitted form the LED light source will be modulated by the proposed lens by the mechanism of multi-refraction. The optical simulation tool ASAP is used during the design procedure. Optimal lens dimension is designed to module 70 percent of the emitting energy to the angle range from 70 degree to 110 degree, the angle is calculated from the normal direction of the LED horizontal plane to the direction of the emitting light. The lens prototype is also fabricated and the optical performance is measured to verify the simulation results. Finally, the comparison between the optical simulation and the experiment performances is also disclosed.
Side-emitting Planar Light Source Refraction
Y. T. Sun Y.N. Pao T.H. Lin
M600, MIRL/ITRI, Chutung, Hsunchu, Taiwan 310, China
国际会议
上海
英文
1642-1645
2007-03-12（万方平台首次上网日期，不代表论文的发表时间）