Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yutaka Maeda0
Date of Patent
May 26, 2009
0Patent Application Number
112882550
Date Filed
November 29, 2005
0Patent Primary Examiner
Patent abstract
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.
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