An ornament plate of a ring-shape made of a metal with a high heat
radiation effect, for instance, aluminum, is attached to an end surface
on an object side of a lens barrel such that the ornament plate covers
the whole front part of the lens barrel. Four kinds of LEDs of high
luminance type constructing an LED light source are attached to the lens
barrel through the ornament plate used as a substrate. A light diffusion
cover made of a transparent resin is attached to the front of the
ornament plate for covering the LEDs. When using the flash, a high
voltage current is applied to the LEDs to emit flash light. Each LED
generates heat. However, the heat is radiated through the ornament plate.