VEHICLE INTERIOR ILLUMINATION DEVICE

WIPO Patent Application WO/2016/031296

A1

The purpose of the present invention is to provide a vehicle interior illumination device that can achieve a decrease in the number of components to be managed by being made versatile, and that can be provided inexpensively through cost reduction. The vehicle interior illumination device (18) is provided with: an interior material body (13) having an illumination window (20c) and being mounted facing the inside of a cabin (31); a light source (22); and a light guide member (23) formed in bar shape with a rectangular or circular cross section. The light guide member (23) has a light entrance face (25a) formed on one end face opposed to the light source (22), a plurality of light exit faces (25b to 25e) disposed successively at predetermined intervals in a circumferential direction and each including a side face along a light guide direction, and a plurality of recess portions (26) formed on each of the light exit faces (25b to 25e) at predetermined intervals forming a line along the light guide direction (24), the positions of the recess portions being successively shifted in the light guide direction (24) among the light exit faces (25b to 25e), each of the recess portions having a total reflection cut face (26a) on the inner face thereof, the light guide member (23) being disposed so as to correspond to the illumination window (20c) of the interior material body (13).

SEKI TOSHIHIKO (JP)
OSHINA MASATO (JP)
TORIKAI KEISUKE (JP)

PCT/JP2015/061835

March 03, 2016

April 17, 2015

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KASAI KOGYO KK (JP)

B60Q3/02; F21V8/00; F21W106/00; F21W107/10

JP2010083211A	2010-04-15
JP2010225505A	2010-10-07
JPH10255532A	1998-09-25

SAKAMOTO TOMOHIRO (JP)
Tomohiro Sakamoto (JP)

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