# US 2022/0034472 A1 · Vehicle lamp

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

- Number: US 2022/0034472 A1
- Document ID: US20220034472A1
- Status: Published application
- Kind: A1
- Application number: 17/279,764
- Filed: 2019-09-25
- Published: 2022-02-03
- Earliest claimed: 2018-09-28
- Assignees: lchikoh lndustries Ltd
- Applicants: lchikoh lndustries Ltd
- Inventors: Kazunori IWASAKI; Yasuhiro OKUBO; Chiharu SASAKI
- Web page: https://patentgrep.com/patent/US20220034472A1

## CPC

- F21S 41/321: {the reflector being a surface of revolution or a planar surface, e.g. truncated}
- F21S 41/675: by moving reflectors
- B60Q 1/068: by mechanical means
- F21S 41/147: the main emission direction of the LED being angled to the optical axis of the illuminating device
- F21S 41/151: arranged in one or more lines
- F21S 41/255: Lenses with a front view of circular or truncated circular outline
- F21S 41/285: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805}
- F21S 41/36: Combinations of two or more separate reflectors
- F21S 41/365: successively reflecting the light
- F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162)
- F21S 45/47: Passive cooling, e.g. using fins, thermal conductive elements or openings
- F21V 29/70: characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21W 2102/13: for high-beam region or low-beam region
- F21W 2102/145: wherein the light is emitted between two parallel vertical cutoff lines, e.g. selectively emitted rectangular-shaped high beam
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS

## Abstract

A vehicle lamp includes a mirror, a plurality of light-emitting elements, and a lens. The mirror is capable of rotating a mirror surface around a rotary axis in a vertical direction. The mirror surface extends along the rotary axis. The light-emitting elements are arranged on a lateral side more than the mirror in a vehicle width direction. The lens irradiates a range wider than the mirror with light from the light-emitting elements. The light-emitting elements are disposed apart from each other such that light distribution images of the light reflected by the mirror surface are aligned along the vehicle width direction. The mirror rotates to combine the adjacent. light distribution images and form a main light distribution pattern.

## Claims

### Claim 1

A vehicle lamp comprising:
a mirror that is capable of rotating a mirror surface around a rotary axis in a vertical direction, the mirror surface extending along the rotary axis;
a plurality of light-emitting elements arranged on a lateral side of a vehicle width direction more than the mirror; and
a lens that irradiates a range wider than the mirror with light from the light-emitting elements, wherein,
the light-emitting elements are disposed apart from each other such that light distribution images of the light reflected by the mirror surface are aligned along the vehicle width direction, and
the mirror rotates to combine the adjacent light distribution images and form a main light distribution pattern.

### Claim 2 (depends on 1)

The vehicle lamp according to claim 1, further comprising:
a light-distribution-image expanding unit disposed below the light-emitting elements in the vertical direction, the light-distribution-image expanding unit reflecting upward the light from the light-emitting elements and spreading the light distribution images in the vertical direction.

### Claim 3 (depends on 1)

The vehicle lamp according to claim 1, wherein the mirror is capable of rotating the mirror surface within a range of ±5° from a non-rotating state.

### Claim 4 (depends on 1)

The vehicle lamp according to claim 1, further comprising:
a control unit that controls driving of the light-emitting elements in such a manner that a light-shielded range is not irradiated with light, based on information on a rotary angle centered around the rotary axis and information on the light-shielded range set in the main light distribution pattern.

### Claim 5 (depends on 1)

The vehicle lamp according to claim 1, wherein at least some of the light-emitting elements is disposed in such a manner that the distances between the adjacent light-emitting elements are different.

### Claim 6 (depends on 1)

The vehicle lamp according to claim 1, further comprising:
at least one reflector disposed on an outer side of the mirror, wherein,
the lens irradiates a range wider than the mirror with the light from the light-emitting elements to irradiate the reflector with light,
the reflector forms a sub-light distribution pattern,
the reflector comprises:
a first reflector disposed on one lateral outer side of the mirror; and
a second reflector disposed on the other lateral outer side of the mirror,
one of the first reflector and the second reflector forms the sub-light distribution pattern added to the outer side of the main light distribution pattern in the vehicle width direction, and
the other one of the first reflector and the second reflector forms the sub-light distribution pattern above the main light distribution pattern in the vertical direction.

### Claim 7 (depends on 6)

The vehicle lamp according to claim 6, wherein the reflector further comprises an upper reflector that is disposed above the mirror in the vertical direction and forms the sub-light distribution pattern above the main light distribution pattern in the vertical direction.
