# US 2022/0034465 A1 · Lamp for vehicle

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- Number: US 2022/0034465 A1
- Document ID: US20220034465A1
- Status: Published application
- Kind: A1
- Application number: 17/358,705
- Filed: 2021-06-25
- Published: 2022-02-03
- Earliest claimed: 2020-07-29
- Assignees: SL Corporation
- Applicants: SL Corporation
- Inventors: Jeong Su Lee; Jong Woon Kim
- Web page: https://patentgrep.com/patent/US20220034465A1

## CPC

- F21S 41/275: Lens surfaces, e.g. coatings or surface structures
- F21S 41/265: Composite lenses; Lenses with a patch-like shape
- F21S 41/43: characterised by the shape thereof
- F21V 5/004: {using microlenses}
- G02B 3/0056: {arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses (G02B3/0043 takes precedence; miniaturised objectives for electronic devices employing wafer level optics G02B13/0085)}
- G02B 3/0062: {Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between}
- G02B 3/08: with discontinuous faces, e.g. Fresnel lens {(diffractive Fresnel lenses G02B5/1876)}
- G02B 19/0014: {at least one surface having optical power}
- G02B 19/0061: {the light source comprising a LED}
- F21S 41/143: the main emission direction of the LED being parallel to the optical axis of the illuminating device
- F21W 2107/10: for land vehicles
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS

## Abstract

Provided is a lamp for a vehicle capable of achieving uniform brightness while improving sharpness of a light irradiation pattern. The vehicle lamp includes a light source system; and an optical system configured to allow light emitted from the light source system to be incident to the optical system through a plurality of incident lenses and to exit through a plurality of exit lenses corresponding to the plurality of incident lenses. The plurality of exit lenses include a first exit lens configured to output light therefrom in a first direction, and a second exit lens configured to output light therefrom in a second direction that is tilted by a predetermined angle with respect to the first direction.

## Claims

### Claim 1

A lamp for a vehicle, the lamp comprising:
a light source system; and
an optical system to allow light emitted from the light source system to be incident to the optical system through a plurality of incident lenses and to exit through a plurality of exit lenses that correspond to the plurality of incident lenses,
wherein the plurality of exit lenses include:
a first exit lens configured to output light therefrom in a first direction; and
a second exit lens configured to output light therefrom in a second direction that is tilted by a predetermined angle with respect to the first direction.

### Claim 2 (depends on 1)

The lamp of claim 1, wherein the optical system comprises:
a first optical member having an incident surface that receives the light from the light source system, wherein the plurality of incident lenses are arranged on the incident surface; and
a second optical member having an exit surface from which the light incident from the first optical member exits, wherein the plurality of exit lenses are arranged on the exit surface.

### Claim 3 (depends on 2)

The lamp of claim 2, wherein the exit surface of the second optical member is formed in a planar shape.

### Claim 4 (depends on 3)

The lamp of claim 3, wherein an exit surface of the first exit lens is symmetrical with respect to a reference line that passes through a center of an incident surface of the first exit lens in a direction perpendicular to the exit surface of the second optical member, and
wherein an exit surface of the second exit lens is asymmetrical with respect to a reference line that passes through a center of an incident surface of the second exit lens in the direction perpendicular to the exit surface of the second optical member.

### Claim 5 (depends on 4)

The lamp of claim 4, wherein the second exit lens includes a plurality of second exit lenses, wherein exit surfaces of the plurality of second exit lenses have different curvatures, which vary based on distances between the plurality of second exit lenses and the first exit lens.

### Claim 6 (depends on 2)

The lamp of claim 2, wherein the exit surface of the second optical member has a first surface on which the first exit lens is formed, and a second surface on which the second exit lens is formed, wherein the second surface is tilted by a predetermined angle with respect to the first surface.

### Claim 7 (depends on 6)

The lamp of claim 6, wherein an exit surface of the first exit lens is symmetrical with respect to a reference line that passes through a center of an incident surface of the first exit lens in a direction perpendicular to the exit surface of the second optical member, and
wherein an exit surface of the second exit lens is symmetrical with respect to a reference line that passes through a center of an incident surface of the second exit lens in the direction perpendicular to the exit surface of the second optical member.

### Claim 8 (depends on 6)

The lamp of claim 6, wherein the second exit lens includes a plurality of second exit lenses, wherein the exit surface of the second optical member has a plurality of surfaces on which the plurality of the second exit lenses are respectively formed, wherein the plurality of surfaces have different tilt angles with respect to the first surface, the different tilt angles varying based on distances between the plurality of second exit lenses and the first exit lens.

### Claim 9 (depends on 1)

The lamp of claim 1, wherein the first exit lens is arranged at a central region among the plurality of exit lenses, and
wherein a direction in which light exits from the second exit lens is tilted toward the first exit lens.

### Claim 10 (depends on 1)

The lamp of claim 1, wherein the light source system comprises:
a light source; and
an optical path adjustment member for adjusting a path of the light emitted from the light source,
wherein the optical path adjustment member adjusts the path of the light to cause the light emitted from the light source system to be substantially parallel to an optical axis of the light source.

### Claim 11 (depends on 10)

The lamp of claim 10, wherein the optical path adjustment member includes at least one of an aspherical lens, a total internal reflection (TIR) lens, a reflector, or a Fresnel lens.