Rohm Co., Ltd.

Akio Yabugami

Masaru Igaki

Kohei Mizuta

Hiroaki Tsujii

A Light Emitting Diode (LED) illumination device having a pleasant appearance and capable of uniform illumination is provided. The LED illumination device () includes a support portion () having a first support surface () and a second support surface (), wherein the first support surface () faces downward, and the second support surface () faces downward, is located at a position higher than the first support surface (), and surrounds the first support surface (); a plurality of LED chips (), including a plurality of first LED chips () supported on the first support surface () and a plurality of second LED chips () supported on the second support surface (); and a mask (), located at a lower position with respect to the support portion (), penetrated by light from the LED chips (), and including a tilted portion () inclining downward toward the center.

LED illumination device

The present invention provides a LED light bulb which is capable of providing the gorgeous and artistic impressions. The LED light bulb comprises a plurality of LED chips, a globe covering the LED chips and allowing the light emitted from the LED chips to penetrate, and a bulb connector, wherein at least one portion of the globe has a concave-convex part.

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Kyoto, Japan

Akio Yabugami