FLUORESCENT-LAMP-TYPE LED LIGHTING DEVICE

摘要

A fluorescent-lamp-type LED lighting device includes an LED (3) including a thin plate-like semiconductor element body (31) for transmitting light generated in a PN junction region (34) in the thickness direction for emitting from a surface, a surface electrode (32) provided to cover the surface of the element body (31) and a plurality of cylindrical dielectric antennas (36) for condensing the light which has passed through the surface electrode (32) in the thickness direction and transmitted through the inside of the element body (31) and emitting it outside, and a resin-made elongate exterior casing (2) having translucency. The LED (3) is provided at both ends of the exterior casing (2) or along its longitudinal direction. The lighting device is structured to shed the light emitted from the LED (3) outside through the exterior casing (2), has a large light quantity and can substitute for a highly efficient existing lighting device.