# US 11,306,890 B2 · Lighting apparatus for vehicle having a screen and projection unit

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- Number: US 11,306,890 B2
- Document ID: US11306890B2
- Status: Granted
- Kind: B2
- Application number: 17/139,564
- Filed: 2020-12-31
- Published: 2021-08-19
- Granted: 2022-04-19
- Earliest claimed: 2020-02-17
- Assignees: Hyundai Mobis Co., Ltd.
- Applicants: HYUNDAI MOBIS Co., Ltd.
- Inventors: Ban Suk Choi; Seung Woo Baek; Chi Yun Han; Jun Hyuk Cha
- Web page: https://patentgrep.com/patent/US11306890B2

## CPC

- F21S 43/26: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255}
- F21S 43/2605: {Refractors}
- B60Q 1/247: {for illuminating the close surroundings of the vehicle, e.g. to facilitate entry or exit (for reverse drive B60Q1/22; by opening a side door B60Q1/323)}
- B60Q 1/2657: {mounted on a shaft, e.g. telescopic}
- B60Q 1/2692: {retractable lights (retractable headlights B60Q1/05)}
- B60Q 1/28: for indicating front of vehicle
- B60Q 1/503: {using luminous text or symbol displays in or on the vehicle, e.g. static text}
- B60Q 1/507: {specific to autonomous vehicles}
- B60Q 1/52: for indicating emergencies
- B60Q 1/543: {for indicating other states or conditions of the vehicle (indicating taxis' state of hire or fare G07B13/045)}
- B60Q 1/547: {for issuing requests to other traffic participants; for confirming to other traffic participants they can proceed, e.g. they can overtake}
- B60Q 1/549: {for expressing greetings, gratitude or emotions}
- F21S 41/25: Projection lenses
- F21S 41/50: characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
- F21S 41/657: by moving light sources
- F21S 43/14: Light emitting diodes [LED]
- F21S 43/255: {Filters}
- F21S 43/281: {Materials thereof; Structures thereof; Properties thereof; Coatings thereof}
- F21S 43/50: characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
- F21S 45/43: using gas
- B60Q 2400/50: Projected symbol or information, e.g. onto the road or car body
- F21W 2102/40: the light being emitted to facilitate access to the vehicle
- F21W 2103/10: Position lights
- F21W 2103/60: Projection of signs from lighting devices, e.g. symbols or information being projected onto the road
- 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

The present invention relates to a lighting apparatus for a vehicle that includes a housing; a screen unit mounted in the housing; and a projection unit fixed to the housing and configured to radiate light toward the screen unit.

## Claims

### Claim 1

A lighting apparatus for a vehicle, comprising:
a housing;
a screen unit mounted in the housing; and
a projection unit fixed to the housing and configured to radiate light toward the screen unit,
wherein:
the projection unit comprises:
a casing fixed to the housing; and
a lamp section fixedly mounted in the casing at a preset angle toward the screen unit and configured to radiate light toward the screen unit;
the lamp section comprises:
a light source mounted in the casing and configured to radiate light;
a spectroscopic part disposed in front of the light source and configured to diffract or refract the light radiated from the light source;
a pattern part disposed in front of the spectroscopic part and configured to form an image of the light radiated from the light source; and
a projection lens part disposed in front of the pattern part and configured to diffuse the light radiated from the light source; and
the image formed by the pattern part is selectable from a plurality of images.

### Claim 2 (depends on 1)

The lighting apparatus for the vehicle according to claim 1, wherein the light source radiates light obliquely downwardly at a preset angle from the casing toward the screen unit.

### Claim 3 (depends on 1)

The lighting apparatus for the vehicle according to claim 1, wherein the lamp section further comprises:
a cooling fan part mounted in the casing and configured to cool heat radiated from the light source.

### Claim 4 (depends on 1)

The lighting apparatus for the vehicle according to claim 1, wherein at least one lamp section is disposed in the casing.

### Claim 5 (depends on 1)

The lighting apparatus for the vehicle according to claim 1, wherein the projection unit is disposed on each lateral side of the housing.

### Claim 6 (depends on 1)

The lighting apparatus for the vehicle according to claim 1, wherein the screen unit includes a translucent acrylic material.

### Claim 7 (depends on 1)

The lighting apparatus for the vehicle according to claim 1, wherein an image of the light radiated from the projection unit is formed on the screen unit.

### Claim 8

A lighting apparatus for a vehicle, comprising:
a housing;
a screen unit mounted in the housing; and
a projection unit rotatably mounted in the housing and configured to radiate light toward the screen unit or a road surface while being rotated,
wherein:
the projection unit comprises:
a casing;
a lamp shaft section connected to the casing and rotatably mounted in the housing; and
a lamp section mounted in the casing and configured to radiate light toward the screen unit or the road surface while being rotated according to rotation of the lamp shaft section;
the lamp section comprises:
a light source mounted in the casing and configured to radiate light;
a spectroscopic part disposed in front of the light source and configured to diffract or refract the light radiated from the light source;
a pattern part disposed in front of the spectroscopic part and configured to form an image of the light radiated from the light source; and
a projection lens part disposed in front of the pattern part and configured to diffuse the light radiated from the light source; and
the image formed by the pattern part is selectable from a plurality of images.

### Claim 9 (depends on 8)

The lighting apparatus for the vehicle according to claim 8, wherein an image of the light radiated from the projection unit is formed on the screen unit.

### Claim 10 (depends on 8)

The lighting apparatus for the vehicle according to claim 8, wherein the lamp shaft section is formed to be expandable and contractible and moves the casing up and down.

### Claim 11 (depends on 8)

The lighting apparatus for the vehicle according to claim 8, wherein the lamp shaft section is mounted to move the casing from front to back and side to side.

### Claim 12 (depends on 8)

The lighting apparatus for the vehicle according to claim 8, wherein rotation directions of the lamp section and the lamp shaft section are adjusted according to steering of a vehicle.

### Claim 13 (depends on 8)

The lighting apparatus for the vehicle according to claim 8, wherein the projection unit further comprises:
a driving section mounted on an end portion of the lamp shaft section and configured to move the lamp shaft section.

### Claim 14 (depends on 8)

The lighting apparatus for the vehicle according to claim 8, wherein the projection unit implements a welcome lamp function of allowing a driver of a vehicle to recognize the vehicle by radiating an image set to the driver onto the road surface.

### Claim 15

A lighting apparatus for a vehicle, comprising:
a housing;
a screen unit mounted in the housing; and
a projection unit rotatably mounted in the housing and configured to radiate light toward the screen unit or a road surface while being rotated,
wherein the projection unit implements a positioning lamp function in which the projection unit is rotated in the housing from inside to outside of the vehicle to indicate a width of the vehicle.
