Nitto-denko Corporation

Shimpei Mukadeyama

Kozo Nakamura

Takahiro Yoshikawa

A lightguide component for illumination devices having an exit surface includes: a lightguide layer having a light-receiving portion to receive light emitted from a light source, a first principal face at the exit surface side, and a second principal face at an opposite side from the first principal face; a light distribution controlling structure having a plurality of internal spaces, each of the plurality of internal spaces including a first slope to direct a portion of light propagating in the lightguide layer toward the exit surface via total internal reflection, and a second slope at an opposite side from the first slope, wherein, when viewed from a normal direction of the first principal face of the lightguide layer, the first slope presents a curved surface that is convex toward the light source; and an anti-reflection layer and/or anti-glare layer disposed at the first principal face side of the lightguide layer.

Growing community of inventors

Osaka, Japan

Shimpei Mukadeyama