# US 2014/0153273 A1 · Vehicular lamp

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- Number: US 2014/0153273 A1
- Document ID: US20140153273A1
- Status: Published application
- Kind: A1
- Application number: 14/091,560
- Filed: 2013-11-27
- Published: 2014-06-05
- Earliest claimed: 2012-12-03
- Assignees: Koito Manufacturing Co., Ltd.
- Applicants: Koito Manufacturing Co., Ltd.
- Inventors: Hironori Tsukamoto
- Web page: https://patentgrep.com/patent/US20140153273A1

## CPC

- F21S 10/005: {using light guides (light guides specially adapted for lighting devices G02B6/0001)}
- F21S 43/14: Light emitting diodes [LED]
- F21S 43/145: Surface emitters, e.g. organic light emitting diodes [OLED]
- F21S 43/239: plate-shaped
- F21S 43/245: emitting light from one or more of its major surfaces
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS

## Abstract

A vehicular lamp includes a transparent planar light emitting body including a first light emitting surface and a second light emitting surface which face each other, a first reflector and a second reflector. The transparent planar light emitting body emits light from the first light emitting surface and the second light emitting surface. The first reflector reflects light from the first light emitting surface to the front. The second reflector reflects light from the second light emitting surface to the front.

## Claims

### Claim 1

A vehicular lamp comprising:
a transparent planar light emitting body including a first light emitting surface and a second light emitting surface which face each other, the transparent planar light emitting body configured to emit light from the first light emitting surface and the second light emitting surface;
a first reflector configured to reflect light from the first light emitting surface to the front; and
a second reflector configured to reflect light from the second light emitting surface to the front.

### Claim 2 (depends on 1)

The vehicular lamp according to claim 1, wherein
the transparent planar light emitting body comprises a transparent organic EL panel.

### Claim 3 (depends on 1)

The vehicular lamp according to claim 1, wherein
at least one of the first reflector and the second reflector has a paraboloidal reflecting surface.

### Claim 4 (depends on 1)

The vehicular lamp according to claim 1, wherein
the transparent planar light emitting body has a plurality of areas of the first light emitting surface and the second light emitting surface which are illuminated selectively so as to emit light therefrom.

### Claim 5 (depends on 2)

The vehicular lamp according to claim 2, wherein
the transparent organic EL panel comprises a transparent electrode serving as anode, a transparent electrode serving as cathode, and a light emitting layer sandwiched between the transparent electrodes.

### Claim 6 (depends on 1)

The vehicular lamp according to claim 1, wherein
the transparent planar light emitting body comprises a light guide.