LED LIGHT SOURCE LAMP

摘要

Disclosed is an LED light source lamp, whereby, without deteriorating light extraction efficiency, more uniform light emitting surface can be obtained, and heat dissipation can be further improved. The LED light source lamp (100) has built-in drive circuits (131-135) in a housing (110), and is used by being attached to a socket (not shown in the figure). An LED installation plate (111) is disposed on the side to be attached to the socket, said side being in the main space (114) in the housing (110). An LED module (120) is an LED assembly, which is disposed on the LED installation plate (111) surface on the reverse side of the surface to be attached to the socket, and which emits light by being driven by the drive circuits. A light diffusion member (160) is disposed such that the optical axis of light emitted by each of the LEDs of the LED module (120) is blocked. The drive circuits (131-135) are disposed on the outer circumferential portion between the LED module (120) and the light diffusion member (160) such that the drive circuits do not block the optical axis of the light emitted by each of the LEDs of the LED module (120).