IP Library Granted Patent US 10,150,409
Granted Patent B2
US 10,150,409 · App. 15/477,287 · Granted Dec 11, 2018

Vehicle interior lighting apparatus

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Quick Facts
Patent No.
US 10,150,409
App. No.
15/477,287
Granted
Dec 11, 2018
Kind
B2
Abstract

A vehicle interior lighting apparatus for illuminating the interior of a vehicle, being equipped with a first lighting section having a light source emitting light and a light guide plate emitting light by virtue of the light from the light source, wherein the first lighting section has a planar light emitting section emitting light emitted from the light source in a planar manner and a linear light emitting section integrated with the planar light emitting section and emitting light emitted from the light source linearly.

Claims (27)

1. A vehicle interior lighting apparatus for illuminating the interior of a vehicle, comprising:

a planar linear light emitting illumination device having a light source and a light guide member emitting light by virtue of the light from the light source, wherein

the light from the light source enters the light guide member from a first side face thereof, and

the planar linear light emitting illumination device has:

a planar light emitting section emitting light from at least one of a front face and a back face of the light guide member in a planar manner at low luminance and

a linear light emitting section integrated with the planar light emitting section and emitting light from a second side face of the light guide member linearly at high luminance;

wherein the high luminance is greater than the low luminance.

2. The vehicle interior lighting apparatus set forth in claim 1 , wherein

the planar linear light emitting illumination device is disposed in the vicinity of a predetermined place to be operated or used by the occupant of the vehicle, and the predetermined place is illuminated by the light irradiated from the planar light emitting section.

3. The vehicle interior lighting apparatus set forth in claim 2 , wherein

the predetermined place to be illuminated by the light from the planar light emitting section is at least one of a storing section and a switch section provided on a door.

4. The vehicle interior lighting apparatus set forth in claim 2 , wherein

the predetermined place to be illuminated by the light from the planar light emitting section is a console box.

5. The vehicle interior lighting apparatus set forth in claim 1 , wherein

the light source is disposed so as to be opposed to the first side face of the light guide member.

6. The vehicle interior lighting apparatus set forth in claim 1 , wherein

the planar linear light emitting illumination device has:

a reflecting plate for reflecting light provided on a back face side of the light guide member.

7. The vehicle interior lighting apparatus set forth in claim 6 , wherein

the planar linear light emitting illumination device has:

a diffusion layer for diffusing light provided on a front face side of the light guide member.

8. The vehicle interior lighting apparatus set forth in claim 7 , wherein

the planar linear light emitting illumination device has:

a lens array section, along which a plurality of lens sections are arranged, provided on a back face of the light guide member.

9. The vehicle interior lighting apparatus set forth in claim 1 , wherein

the planar linear light emitting illumination device has:

a plurality of conically cut sections formed at predetermined intervals on at least one of an upper face and a lower face of the light guide member.

Assignments (2)
CHANGE OF ADDRESS Recorded Jun 5, 2023
From: YAZAKI CORPORATION
To: YAZAKI CORPORATION
Reel/Frame 063845/0802 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 3, 2017
From: OHASHI, TOMONORI; SATO, KAZUYA
To: YAZAKI CORPORATION
Reel/Frame 041825/0015 →