Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Kenji Mukai

Hideo Nagai

Nobuyuki Matsui

Masanori Shimizu

Toshio Mori

Yoshio Manabe

Tetsuji Takeuchi

Masaaki Hama

Yoshinori Ootaka

Hiromi Tanaka

Toru Higashi

Yoshinori Tanabe

Katsuaki Iwama

Hideaki Kiryu

Haruo Shibata

Takeshi Saitoh

Yukio Akashi

Izumi Akashi

Sueko Kanaya

The present invention provides an illumination device that includes a light source () incorporating light emitting elements, a support member (), an anisotropic heat conduction layer () formed on at least a part of a surface of the support member () and is configured so that a thermal conductivity thereof in a surface direction is higher than a thermal conductivity thereof in a thickness direction, and a heat radiation layer () formed on a part of a surface of the anisotropic heat conduction layer, and the illumination device is characterized in that the light source ()is disposed on a part of the surface of the anisotropic heat conduction layer. This makes it possible to efficiently radiate heat generated by the light emitting elements, and provides the illumination device with high degree of freedom in designing devices that make use of the light source.

Illumination device

An LED array chip () includes blue LEDs () and red LEDs (). The blue LEDs () are formed by epitaxial growth on an SiC substrate (). Bonding pads (and) are formed on the SiC substrate () in a wafer fabrication process. The red LEDs () are separately manufactured from the blue LEDs (), and flip-chip mounted on the bonding pads (and) formed on the SiC substrate.

Semiconductor light emitting device, light emitting module and lighting apparatus

Lighting fixture with light emitting diode

Light emitting diode lamp unit

In evaluating whiteness of light from a light source or a luminaire, whiteness W is given by the following equation,=&#x2212;5.3+100,

Method of evaluating whiteness, method of evaluating comparative whiteness, light source and luminaire

Light emitting diode module

Growing community of inventors

Shijonawate, Japan

Kenji Mukai