LED LIGHTING DEVICE, AND METHOD FOR EXTRACTING LIGHT OF LED LIGHTING DEVICE

摘要

A frame body (3) comprises an outer frame body (3b) made of a microfoam resin, and two inner frame bodies (3a) made of a microfoam resin. The two inner frame bodies (3a) are disposed side by side inside the outer frame body (3b). The inner frame bodies (3a) and the outer frame body (3b) are all provided with openings (27a, 27b) provided in the respective upper portions thereof, and concave sections (33a, 33b) formed facing downward from the openings (27a, 27b). An LED light source (23a) disposed inside a light-guide space (25a) radiates light in the light-guide space (25a) toward a light emission surface. Therefore, the light from the LED light source (23a) is emitted uniformly from a light extraction part (9a). Also, an LED light source (23b) disposed inside a light-guide space (25b) radiates light toward the light-guide space (25b). Therefore, the light from the LED light source (23b) is emitted uniformly from a light extraction part (9b).