Invention Grant
- Patent Title: Lighting apparatus and automobile including the same
- Patent Title (中): 照明设备和汽车包括相同
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Application No.: US14607557Application Date: 2015-01-28
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Publication No.: US09557027B2Publication Date: 2017-01-31
- Inventor: Makoto Kai , Yoshihiko Kanayama , Hiro Aoki , Tomoyuki Ogata
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2014-018870 20140203
- Main IPC: F21V5/00
- IPC: F21V5/00 ; F21S8/10 ; B60Q1/00 ; B60Q1/20 ; F21V8/00

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.
Public/Granted literature
- US20150219303A1 LIGHTING APPARATUS AND AUTOMOBILE INCLUDING THE SAME Public/Granted day:2015-08-06
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