# US 12,111,035 B2 · Vehicle lighting fixture

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- Number: US 12,111,035 B2
- Document ID: US12111035B2
- Status: Granted
- Kind: B2
- Application number: 17/904,772
- Filed: 2021-02-17
- Published: 2023-02-09
- Granted: 2024-10-08
- Earliest claimed: 2020-02-28
- Assignees: Ichikoh Industries, Ltd.
- Applicants: Ichikoh Industries, Ltd.
- Inventors: Takanori Hamamoto; Yuichiro Washi
- Web page: https://patentgrep.com/patent/US12111035B2

## CPC

- F21S 43/50: characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
- B60Q 1/381: {with several light sources activated in sequence, e.g. to create a sweep effect}
- F21S 43/14: Light emitting diodes [LED]
- F21S 43/19: Attachment of light sources or lamp holders
- F21S 43/195: {Details of lamp holders, terminals or connectors}
- F21S 43/255: {Filters}
- F21S 43/26: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255}
- F21S 43/27: Attachment thereof
- B60Q 1/0047: {Signalling unit mounted on a headlamp unit}
- B60Q 2400/50: Projected symbol or information, e.g. onto the road or car body
- B60Q 2900/40: Several lamps activated in sequence, e.g. sweep effect, progressive activation
- F21W 2103/20: Direction indicator lights
- F21W 2103/60: Projection of signs from lighting devices, e.g. symbols or information being projected onto the road
- F21W 2107/10: for land vehicles
- 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
- F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS

## Abstract

To provide a vehicular lamp that can improve the degree of freedom in the arrangement position of a road surface irradiation unit. The vehicular lamp comprises a road surface irradiation unit for forming an irradiation pattern around the vehicle with light from a light emitting portion for a road surface; and a shielding part for covering the light emitting portion for the road surface when the road surface irradiation unit is viewed from the front. The vehicular lamp may further comprise a lamp unit housed in a lamp chamber together with the road surface irradiation unit, and the road surface irradiation unit may be turned on and off interlocked with the lamp unit.

## Claims

### Claim 1

A vehicular lamp, comprising:
a road surface irradiation unit that forms an irradiation drawing pattern and emits the formed irradiation pattern around a vehicle, the road surface irradiation unit including a light emitting portion for a road surface, which emits the formed irradiation drawing pattern around the vehicle;
a shielding part covering the light emitting portion for the road surface when the road surface irradiation unit is viewed from the front; and
a lamp unit housed in a lamp chamber together with the road surface irradiation unit,
wherein the road surface irradiation unit is turned on and off interlocked with the lamp unit, and
wherein the lamp unit comprises a plurality of lighting parts arranged in a vehicle width direction, and the plurality of lighting parts are turned on in order from inside to outside of the vehicle,
and the road surface irradiation unit makes positions of the light emitting portions for the road surface in the vehicle width direction with respect to the plurality of lighting parts and timings of forming the irradiation drawing pattern with respect to the order of turning on the plurality of lighting parts in the vehicle width direction to be different.

### Claim 2 (depends on 1)

The vehicular lamp according to the claim 1, wherein the road surface irradiation unit has the light emitting portion for the road surface positioned at a predetermined interval from the lamp light emitting portion of the interlocking lamp unit on a vertical plane perpendicular to a travel direction of the vehicle.

### Claim 3 (depends on 1)

The vehicular lamp according to the claim 1, wherein the shielding part is provided separately from the road surface irradiation unit.

### Claim 4 (depends on 1)

The vehicular lamp according to the claim 1, wherein the shielding part is integrally provided with the road surface irradiation unit.

### Claim 5

A vehicular lamp, comprising:
a road surface irradiation unit that forms an irradiation drawing pattern and emits the formed irradiation pattern around a vehicle, the road surface irradiation unit including a light emitting portion for a road surface, which emits the formed irradiation drawing pattern around the vehicle;
a shielding part covering the light emitting portion for the road surface when the road surface irradiation unit is viewed from the front; and
a lamp unit housed in a lamp chamber together with the road surface irradiation unit,
wherein the road surface irradiation unit is turned on and off interlocked with the lamp unit, and
wherein the lamp unit comprises a plurality of lighting parts arranged in a vehicle width direction, and the plurality of lighting parts are turned on in order from inside to outside of the vehicle,
and the road surface irradiation unit is arranged on an outer side of the vehicle in the vehicle width direction than the lighting part positioned innermost of the vehicle, and forms the irradiation pattern at the same time as turning on the lighting part positioned innermost of the vehicle.

### Claim 6 (depends on 5)

The vehicular lamp according to the claim 5, wherein the road surface irradiation unit has the light emitting portion for the road surface positioned at a predetermined interval from the lamp light emitting portion of the interlocking lamp unit on a vertical plane perpendicular to a travel direction of the vehicle.

### Claim 7 (depends on 5)

The vehicular lamp according to the claim 5, wherein the shielding part is provided separately from the road surface irradiation unit.

### Claim 8 (depends on 5)

The vehicular lamp according to the claim 5, wherein the shielding part is integrally provided with the road surface irradiation unit.

### Claim 9

A vehicular lamp, comprising:
a road surface irradiation unit that forms an irradiation drawing pattern and emits the formed irradiation pattern around a vehicle, the road surface irradiation unit including a light emitting portion for a road surface, which emits the formed irradiation drawing pattern around the vehicle; and
a shielding part covering the light emitting portion for the road surface when the road surface irradiation unit is viewed from the front,
wherein the shielding part is integrally provided with the road surface irradiation unit, and
wherein the road surface irradiation unit has a light source, a projection lens that projects light from the light source to become the light emitting portion for the road surface, and a cylindrical enclosure that supports the light source and the projection lens,
and the shielding part has a shape shaved along the travel direction of the vehicle while being extended from the enclosure to an optical axis direction of the road surface irradiation unit.

### Claim 10

A vehicular lamp, comprising:
a road surface irradiation unit for forming an irradiation pattern around a vehicle with light from a light emitting portion for a road surface;
a shielding part covering the light emitting portion for the road surface when the road surface irradiation unit is viewed from the front; and
a lamp unit housed in a lamp chamber together with the road surface irradiation unit,
wherein the road surface irradiation unit is turned on and off interlocked with the lamp unit,
wherein the lamp unit comprises a plurality of lighting parts arranged in a vehicle width direction, and the plurality of lighting parts are turned on in order from inside to outside of the vehicle, and
wherein the road surface irradiation unit is arranged on an outer side of the vehicle in the vehicle width direction than the lighting part positioned innermost of the vehicle, and forms the irradiation pattern at the same time as turning on the lighting part positioned innermost of the vehicle.
