VEHICULAR ILLUMINATION DEVICE

WIPO Patent Application WO/2018/230285

A1

A major purpose of the present invention is to enable greater variation in design between unilluminated and illuminated states, and to achieve illumination having a three-dimensional effect. The present invention relates to a vehicular illumination device (1) which houses therein light guide plates (11, 12) inside a non-translucent case (3) and a translucent cover member (4) covering a surface of the non-translucent case (3), said plates having reflective portions (7, 8) capable of reflecting incident light (6) from a light source (5) toward the cover member (4). Multiple light guide plates (11, 12), with light control layers (42, 43) arranged toward the top face thereof, are vertically stacked together. The light source (5) is disposed on one end of the multiple light guide plates (11, 12). The reflective portions (7, 8) are disposed in a staggered manner, such that the lower a light guide plate (11), the farther away the reflective portion (7, 8) thereof from the light source (5). Each of the light control layers (42, 43) has light-transmissive parts (42a, 43a), where the light transmittance gradually decreases as distance from the light source (5) increases.

KIKUCHI MASAMI (JP)
SHIMANE JUNICHI (JP)

PCT/JP2018/019765

December 20, 2018

May 23, 2018

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CALSONIC KANSEI CORP (JP)

B60Q3/14; B60Q3/64

JP2004090897A	2004-03-25
JP2005050630A	2005-02-24
JP2006252835A	2006-09-21
JP2011187197A	2011-09-22
JP2004354478A	2004-12-16

CREO LAW & INTELLECTUAL PROPERTY (JP)

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