INDICATION LIGHTING DEVICE AND VACUUM CLEANER INCLUDING THE SAME

摘要

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.

主权项

1. An indication lighting device making indication by emitting light from a moving part having plural locating positions with respect to a fixed part, comprising:
a light source arranged in the fixed part and emitting light; an optical waveguide arranged in the moving part and propagating the light emitted, from the light source; and an indication part arranged in the moving part and emitting the light propagated inside the optical waveguide, wherein the optical waveguide has plural prisms in which reflection surfaces are formed at intervals corresponding to the plural locating positions, and the light emitted from the light source is reflected on the reflection surfaces of the optical waveguide at respective locating positions of the moving part to be propagated toward the indication part and emitted from the indication part to make indication.