# US 10,501,004 B2 · Car light system and motor vehicle

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- Number: US 10,501,004 B2
- Document ID: US10501004B2
- Status: Granted
- Kind: B2
- Application number: 15/546,806
- Filed: 2017-01-17
- Published: 2018-08-09
- Granted: 2019-12-10
- Earliest claimed: 2016-04-28
- Assignees: Boe Technology Group Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.
- Inventors: Wenbo Li
- Web page: https://patentgrep.com/patent/US10501004B2

## CPC

- F21S 41/645: {by electro-optic means, e.g. liquid crystal or electrochromic devices}
- B60Q 1/04: the devices being headlights
- B60Q 1/085: {due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers (B60Q1/10, B60Q1/12, B60Q1/1423 take precedence)}
- B60Q 9/00: Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 {, e.g. haptic signalling}
- F21S 41/635: {by moving refractors, filters or transparent cover plates}
- F21S 41/657: by moving light sources
- F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162)
- G02B 3/14: of variable focal length
- G02B 27/0955: {Lenses (lenses per se G02B3/00)}
- G03B 29/00: Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects (combinations with flash apparatus G03B15/03)
- B60Q 2400/50: Projected symbol or information, e.g. onto the road or car body
- G02F 1/1334: based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
- G03B 21/20: Lamp housings
- 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
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

A car light system and a motor vehicle include an illuminating lamp configured to emit illuminating ray; a projection lamp configured to project received information to be projected onto a projection medium; and a control module configured to provide the information to be projected and turn on and off the illuminating lamp and the projection lamp.

## Claims

### Claim 1

A car light system, comprising:
an illuminating lamp configured to emit illuminating ray;
a light adjuster configured to adjust a direction of light emitted by the illuminating lamp;
a projection lamp configured to project received information to be projected onto a projection medium; and
a control module configured to provide the information to be projected and turn on and off the illuminating lamp and the projection lamp,
wherein the light adjuster is a polymeric dispersion liquid crystal device or a multistable liquid crystal device, the light adjuster is configured to switch between a first state and a second state; in the first state, the light adjuster is configured to be in a scattering state to diverge the light emitted by the illuminating lamp; and in the second state, the light emitted by the illuminating lamp has unchanged direction upon running through the light adjuster.

### Claim 2 (depends on 1)

The car light system according to claim 1, further comprising a lampshade, wherein the illuminating lamp and the projection lamp are disposed in the lampshade.

### Claim 3 (depends on 1)

The car light system according to claim 1, wherein the light adjuster is connected to the control module; and the control module controls the light adjuster to switch between the first state and the second state.

### Claim 4 (depends on 1)

The car light system according to claim 1, wherein the projection medium is the ground.

### Claim 5 (depends on 1)

The car light system according to claim 1, wherein the control module integrates a navigation function; and navigation information is projected onto the projection medium through the projection lamp.

### Claim 6 (depends on 1)

The car light system according to claim 1, wherein the control module integrates a playback function of videos, audios and images; and the videos and the images are projected onto the projection medium through the projection lamp.

### Claim 7 (depends on 1)

The car light system according to claim 1, wherein the control module includes an interface which is configured to connect an information source to be projected.

### Claim 8 (depends on 1)

A motor vehicle, comprising the car light system according to claim 1.