# US 10,371,336 B2 · Headlamp apparatus

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,371,336 B2
- Document ID: US10371336B2
- Status: Granted
- Kind: B2
- Application number: 16/027,765
- Filed: 2018-07-05
- Published: 2019-01-10
- Granted: 2019-08-06
- Earliest claimed: 2017-07-06
- Assignees: Hyundai Mobis Co., Ltd.
- Applicants: Hyundai Mobis Co., Ltd.
- Inventors: Hyun Soo Lee
- Web page: https://patentgrep.com/patent/US10371336B2

## CPC

- F21S 41/285: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805}
- F21S 41/141: Light emitting diodes [LED]
- F21S 41/147: the main emission direction of the LED being angled to the optical axis of the illuminating device
- F21S 41/153: arranged in a matrix
- F21S 41/26: Elongated lenses
- F21S 41/32: Optical layout thereof
- F21S 41/323: {the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature}
- F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162)
- F21Y 2115/10: Light-emitting diodes [LED]
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

A headlamp apparatus may include: a light source configured to emit light; a reflector having a reflecting surface with different curvatures in first and second directions crossing each other, and configured to reflect the light emitted from the light source; and a lens configured to receive the light through the reflector, and change the magnification of the light so as to guide the light to the front.

## Claims

### Claim 1

A headlamp apparatus comprising:
a light source configured to emit light;
a reflector comprising a reflecting surface having different curvatures in first and second directions crossing each other, and configured to reflect a light emitted from the light source; and
a lens configured to receive the light through the reflector, and change a magnification of the light so as to guide the light through a front of the headlamp apparatus;
wherein the light source comprises a plurality of LED light sources, and each of the LED light sources is separately activated.

### Claim 2 (depends on 1)

The headlamp apparatus of claim 1, wherein the plurality of LED light sources is arranged in a matrix shape.

### Claim 3 (depends on 1)

The headlamp apparatus of claim 1, wherein the reflecting surface forms a concavely curved surface toward the light source, and
a second curvature radius in the second direction is larger than a first curvature radius in the first direction.

### Claim 4 (depends on 3)

The headlamp apparatus of claim 3, wherein the first direction is a top-to-bottom direction with respect to the reflecting surface, and the second direction is a side-to-side direction with respect to the reflecting surface.

### Claim 5 (depends on 1)

The headlamp apparatus of claim 1, wherein the lens comprises:
a first lens facing the reflector; and
a second lens connected to the first lens, and formed in a convex shape so as to have different curvatures in third and fourth directions crossing each other.

### Claim 6 (depends on 5)

The headlamp apparatus of claim 5, wherein the second lens is integrated with the first lens through a forming process.

### Claim 7 (depends on 6)

The headlamp apparatus of claim 6, wherein the second lens is installed to face a surface of the first lens that is away from the reflector, and configured to be formed in a semi-circle cylindrical shape.

### Claim 8 (depends on 5)

The headlamp apparatus of claim 5, wherein the first lens forms a convexly curved surface or flat surface toward the reflector.

### Claim 9 (depends on 8)

The headlamp apparatus of claim 8, wherein a fourth curvature radius in the fourth direction is smaller than a third curvature radius in the third direction.

### Claim 10 (depends on 9)

The headlamp apparatus of claim 9, wherein the third direction is a top-to-bottom direction with respect to the second lens, and the fourth direction is a side-to-side direction with respect to the second lens.