Vehicle interior lighting apparatus

Patent metadata

Field	Value
Publication number	US-10150409-B2
Application number	US-201715477287-A
Country	US
Kind code	B2
Filing date	Apr 3, 2017
Priority date	Apr 4, 2016
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

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.

First claim

What is claimed is:

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.

Assignees

• Yazaki Corp

Inventors

• Ohashi Tomonori
• Sato Kazuya

Classifications

• F21V2200/00

  Use of light guides, e.g. fibre optic devices, in lighting devices or systems · CPC title

• G02B6/0011

  the light guides being planar or of plate-like form · CPC title

• B60Q3/64

  for a single lighting device · CPC title

• B60Q3/82

  Switches specially adapted for vehicle interior lighting, e.g. switching by tilting the lens · CPC title

• B60Q3/20 Primary

  for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments (lighting for dashboards B60Q3/10) · CPC title