Invention Application
US20160209575A1 INDICATION LIGHTING DEVICE AND VACUUM CLEANER INCLUDING THE SAME
有权
指示灯装置和真空清洁器,包括它们
- Patent Title: INDICATION LIGHTING DEVICE AND VACUUM CLEANER INCLUDING THE SAME
- Patent Title (中): 指示灯装置和真空清洁器,包括它们
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Application No.: US14885591Application Date: 2015-10-16
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Publication No.: US20160209575A1Publication Date: 2016-07-21
- Inventor: ATSUSHI FUKUI , MASARU FUJITA , TOMOHISA SAKAGUCHI
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Priority: JP2015-008193 20150120
- Main IPC: F21V8/00
- IPC: F21V8/00 ; F21V33/00

Abstract:
An indication lighting device provided is capable of reducing the number of electric wiring from a fixed, part to a moving part when an indication part is provided in the moving part's side. The indication lighting device makes indication by emitting light from a light source arranged in a fixed part to an optical waveguide arranged in a moving part, reflecting the light incident on the optical waveguide by reflection surfaces of prisms of the optical waveguide to an indication part provided in a tip side of the optical waveguide to be propagated, and emitting the light propagated inside the optical waveguide through the indication part.
Public/Granted literature
- US09946008B2 Indication lighting device and vacuum cleaner including the same Public/Granted day:2018-04-17
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