公开(公告)号：US20150219303A1

公开(公告)日：2015-08-06

申请号：US14607557

申请日：2015-01-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Makoto KAI ,  Yoshihiko KANAYAMA ,  Hiro AOKI ,  Tomoyuki OGATA

IPC: F21S8/10

CPC classification number: F21S43/237 ,  B60Q1/0052 ,  B60Q1/20 ,  B60Q2400/30 ,  F21S43/14 ,  F21S43/239 ,  F21S43/243 ,  F21S43/249 ,  G02B6/002 ,  G02B6/0048

Abstract: A lighting apparatus includes: a light guide which is tubular and includes a light entry portion in one end in a tube axis direction; and a light source arranged corresponding to the light entry portion. The light entry portion includes a light redirecting portion which changes a traveling direction of light entering from the first light source to a direction that is substantially parallel to the tube axis direction of the light guide. The light guide includes: plural light-emitting faces which are ring-shaped and formed concentrically in the other end in the tube axis direction of the light guide; and a non light-emitting face which is wall-like and formed along the tube axis direction of the light guide, at a border of adjacent ones of the light-emitting faces.

Abstract translation: 照明装置包括：导管，其是管状的，并且在管轴方向的一端包括光入口部; 以及对应于光入口部分布置的光源。 光入口部分包括将从第一光源进入的光的行进方向改变到基本上平行于光导管的管轴方向的方向的光重定向部分。 导光体包括：多个发光面，其在光导管的管轴方向的另一端同心地形成环状， 以及在相邻的发光面的边界处沿着导光体的管轴方向成壁状形成的非发光面。