| 摘要 |
PROBLEM TO BE SOLVED: To provide a bulb-type lighting device which can distribute light to a wider area.SOLUTION: The bulb-type lighting device includes: an light emitter 30 having one or multiple semiconductor device(s) 31; a cover 10 covering the light emitter 30; a radiator P to which an opening end of the cover 10 is attached to radiate heat generated in the light emitter 30; a translucent holder 20 fixing the light emitter 30 from above and making the light emitter 30 thermally contact with the radiator P; a ferrule 80 attached to one end of the radiator P; and a power supply circuit board 50 receiving electricity via the ferrule 80 and making the semiconductor device(s) 31 emit light. |
