Nichia Corporation

Shinobu Ito

Takanori Aruga

Minoru Kitahara

Katsuyuki Onozuka

Naoki Nakamura

Naohide Miyasaka

A measurement device for a light-emitting device includes a light attenuator, a photometric sphere, and a light detector. The light attenuator includes a first surface and a heat dissipator. A first light that is emitted from the first light-emitting device is incident on the first surface. The first surface is configured to absorb a portion of the first light. The heat dissipator is configured to dissipate heat of the first surface. The photometric sphere has an inner surface to reflect the first light reflected by the first surface. The light detector is configured to receive at least a portion of the first light reflected by the inner surface.

Growing community of inventors

Iwata, Japan

Shinobu Ito