# US 8,783,926 B2 · Lamp for vehicle

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- Number: US 8,783,926 B2
- Document ID: US8783926B2
- Status: Granted
- Kind: B2
- Application number: 13/611,477
- Filed: 2012-09-12
- Published: 2013-09-05
- Granted: 2014-07-22
- Earliest claimed: 2012-03-02
- Assignees: Hyundai Motor Japan R&D Center, Inc.; Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hiroshi Suzuki
- Inventors: Hiroshi Suzuki
- Web page: https://patentgrep.com/patent/US8783926B2

## CPC

- F21S 43/40: characterised by the combination of reflectors and refractors
- F21S 43/14: Light emitting diodes [LED]
- F21S 43/26: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255}
- F21S 43/31: Optical layout thereof
- F21S 43/33: characterised by their material, surface treatment or coatings
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS

## Abstract

A lamp apparatus for a vehicle may include a hollow tub having a mirror surface, an upper cover mounted at a side of the tub and having a first surface perpendicular to an axial direction of the tub, wherein the first surface includes a semi-mirror surface which divides light into a transmitted light passing to the outside and a reflected light reflected to the inside, a lower cover mounted at the other side of the tub and having a second surface perpendicular to the axial direction of the tub, wherein the second surface includes a mirror surface formed on an inner side thereof, and a plurality of point light sources mounted on the mirror surface of the lower cover, wherein light emitted from the point light sources is multiple-reflected between the semi-mirror surface of the upper cover and the mirror surface of the lower cover.

## Claims

### Claim 1

A lamp apparatus for a vehicle, the lamp apparatus comprising:
a hollow tube having an inner side which is a mirror surface;
an upper cover which is mounted at a side of the tube and has a first surface perpendicular to an axial direction of the tube, wherein the first surface includes a semi-mirror surface which divides light into a transmitted light passing to the outside and a reflected light reflected to the inside;
a lower cover which is mounted at the other side of the tube and has a second surface perpendicular to the axial direction of the tube, wherein the second surface includes a mirror surface formed on an inner side thereof; and
a plurality of point light sources mounted on the mirror surface of the lower cover;
wherein light emitted from the point light sources is multiple-reflected between the semi-mirror surface of the upper cover and the mirror surface of the lower cover; and
wherein the first surface is formed with a plurality of annular end portions and aligned in a stepped shape.

### Claim 2 (depends on 1)

The lamp apparatus of claim 1, wherein the point light sources are spaced each other.

### Claim 3 (depends on 1)

The lamp apparatus of claim 1, wherein the upper cover is formed in a concave shape toward the lower cover.

### Claim 4 (depends on 3)

The lamp apparatus of claim 3, wherein the second surface of the lower cover is flat.

### Claim 5 (depends on 1)

The lamp apparatus of claim 1, wherein the upper cover is formed in a convex shape in a direction opposite to the lower cover and the first surface is formed of an annular end portion.

### Claim 6 (depends on 5)

The lamp apparatus of claim 5, wherein the first surface is formed with a plurality of annular end portions and aligned in a stepped shape.

### Claim 7 (depends on 5)

The lamp apparatus of claim 5, wherein the second surface of the lower cover is flat.

### Claim 8 (depends on 5)

The lamp apparatus of claim 5, wherein the lower cover is formed in a convex shape toward the upper cover and the second surface is formed of an annular end portion.

### Claim 9 (depends on 8)

The lamp apparatus of claim 8, wherein the second surface is formed with a plurality of annular end portions and aligned in a stepped shape.

### Claim 10 (depends on 1)

The lamp apparatus of claim 1, wherein the upper cover is flat.

### Claim 11 (depends on 10)

The lamp apparatus of claim 10, wherein the lower cover is formed in a convex shape toward the upper cover and the second surface is formed of an annular end portion.

### Claim 12 (depends on 11)

The lamp apparatus of claim 11, wherein the second surface is formed with a plurality of annular end portions and aligned in a stepped shape.