| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED module capable of achieving filament pseudo light emission.SOLUTION: In an LED module 1 including an LED 3, which is a light source, and a light guide body 4 for guiding the light entering from the LED 3, the light guide body 4 is constituted by a light guide part 4A for guiding the light from the LED 3 entering from an incident surface on one end to the other end side while allowing it to reflect and refract, and a pseudo filament part 4B formed on the other end of the light guide part 4A. The pseudo filament part 4B is constituted by a columnar body which is long in the direction orthogonal to an optical axis of the LED 3, and on an outer peripheral surface of the columnar body, a plurality of grooves 4a along the longitudinal direction are formed in the circumferential direction. Also, on an outer peripheral surface of the light guide part 4A of the light guide body 4, reflection treatment is performed. Or a relationship of y<1.2x is established between the width y of the one end on the incident surface side and the width x of the other end on the pseudo filament part 4B of the light guide part 4A of the light guide body 4.SELECTED DRAWING: Figure 2 |
