Anti-glaring light system and vehicle

Patent metadata

Field	Value
Publication number	US-2019232763-A1
Application number	US-201916261225-A
Country	US
Kind code	A1
Filing date	Jan 29, 2019
Priority date	Jan 30, 2018
Publication date	Aug 1, 2019
Grant date	—

Abstract

An anti-glaring light system and a vehicle are provided in the present disclosure. The system includes a light emitting device, configured to selectively emit first polarized light having a first polarization direction along a first light-emergent path or ordinary light along a second light-emergent path; and an eye-protection device, configured to block second polarized light having a second polarization direction incident into the eye-protection device, enable the first polarized light to pass through the eye-protection device and be propagated to eyes of a user along a first light-incident path, and enable the ordinary light to be propagated to the eyes of the user along a second light-incident path.

First claim

What is claimed is:

1 . An anti-glaring light system, comprising:
a light emitting device, configured to selectively emit first polarized light along a first light-emergent path or emit ordinary light along a second light-emergent path, wherein the first polarized light has a first polarization direction; and an eye-protection device, configured to block second polarized light having a second polarization direction incident into the eye-protection device, configured to enable the first polarized light to pass through the eye-protection device along a first light-incident path, and configured to enable the ordinary light to be propagated to the eyes of the user along a second light-incident path.

2 . The anti-glaring light system according to claim 1 , wherein, the light emitting device comprises a light source, a first light propagator, and a first polarizer;
the light source is configured to emit the ordinary light; the first light propagator is configured to enable the ordinary light emitted by the light source to be propagated to the first polarizer and be emitted out along the first light-emergent path, or enable the ordinary light to be emitted out directly along the second light-emergent path; and the first polarizer is configured to convert the ordinary light to the first polarized light having the first polarization direction.

3 . The anti-glaring light system according to claim 1 , wherein, the eye-protection device comprises a second light propagator and a second polarizer;
the second light propagator is configured to enable the first polarized light having the first polarization direction to be propagated to the second polarizer and be propagated to the eyes of the user along the first light-incident path, and enable the ordinary light to be propagated to the eyes of the user directly along the second light-incident path; a polarization direction of the second polarizer is same as the first polarization direction of the first polarized light.

4 . The anti-glaring light system according to claim 1 , wherein the light emitting device is in a first vehicle, the eye-protection device is in a second vehicle meeting the first vehicle, or the eye-protection device is a pair of eye-protection glasses worn by a driver of the second vehicle.

5 . The anti-glaring light system according to claim 4 , wherein the first vehicle and the second vehicle are different, and the first polarized light having the first polarization direction emitted from the light emitting device in the first vehicle is blocked by the eye-protection device in the second vehicle.

6 . The anti-glaring light system according to claim 4 , wherein the first vehicle and the second vehicle are same, and the first polarization direction is perpendicular to the second polarization direction.

7 . The anti-glaring light system according to claim 2 , further comprising:
a first adjuster, configured to adjust a direction of a light-transmissive axis of the first polarizer.

8 . The anti-glaring light system according to claim 3 , further comprising:
a second adjuster, configured to adjust a direction of a light-transmissive axis of the second polarizer.

9 . The anti-glaring light system according to claim 2 , wherein the first light propagator comprises a first lens and a second lens, the first lens is adjacent to the light source, and the second lens is adjacent to the first polarizer;
the first lens is a liquid crystal lens comprising liquid crystal molecules, and is configured to enable the liquid crystal molecules in the first lens to rotate under a condition that the first lens is applied with a first driving signal, so that the ordinary light is refracted to the second lens by the first lens and is propagated to the first polarizer through the second lens and is emitted out along the first light-emergent path; wherein under a condition that the liquid crystal molecules in the first lens are not rotated, the ordinary light emitted by the light source is emitted out directly along the second light-emergent path after the ordinary light passes through the first lens.

10 . The anti-glaring light system according to claim 3 , wherein the second light propagator comprises a third lens, a first reflector, and a second reflector, the third lens is at a light-incident side of the second polarizer relative to the second polarizer, the first reflector is at a light-emergent side of the second polarizer relative to the second polarizer, and the second reflector is at a light-emergent side of the first reflector relative to the first reflector;
the third lens is a liquid crystal lens comprising liquid crystal molecules, and is configured to enable the liquid crystal molecules in the third lens to rotate under a condition that the third lens is applied with a second driving signal, so that light incident into the eye-protection device is propagated to the second polarizer through the third lens, and polarized light passing through the second polarizer is propagated to the first reflector, reflected to the second reflector by the first reflector, reflected by the second reflector and propagated to the eyes of the user along the first light-incident path; under a condition that the liquid crystal molecules in the third lens are not rotated, the light incident into the eye-protection device directly passes through the third lens and is propagated to the eyes of the user along the second light-incident path.

11 . The anti-glaring light system according to claim 10 , wherein the second light propagator further comprises a rotation controller and an electric motor, the electric motor is connected to the rotation controller and is connected to at least one of the first reflector or the second reflector;
the rotation controller is configured to control the electric motor to drive at least one of the first reflector or the second reflector to rotate, so as to adjust an angle of reflected light reflected by at least one of the first reflector or the second reflector relative to the light incident into the eye-protection device.

12 . The anti-glaring light system according to claim 7 , wherein the first adjuster is configured to adjust an angle between the direction of the light-transmissive axis of the first polarizer and a horizontal direction to be approximately 45 degrees or approximately 135 degrees.

13 . The anti-glaring light system according to claim 8 , wherein the second adjuster is configured to adjust an angle between the direction of the light-transmissive axis of the second polarizer and a horizontal direction to be approximately 135 degrees or approximately 45 degrees.

14 . The anti-glaring light system according to claim 10 , wherein the third lens is arranged vertically, the second polarizer is arranged horizontally, the first reflector is arranged horizontally and below the second polarizer, the second reflector is arranged at an upper right side of the second polarizer along a light-emergent direction of the eye-protection device and arranged above the third lens.

15 . The anti-glaring light system according to claim 1 , wherein the light emitting device is a high-beam light or a low-beam light of a vehicle.

16 . A vehicle, comprising:
the anti-glaring light system according to claim 1 ; and a processor, configured to be connected to the anti-glaring light system and control the anti-glaring light system to operate.

17 . The vehicle according to claim 16 , further comprising:
a meeting-vehicle determination circuit, configured to determine whether a meeting vehicle exists

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Shi Bo
• Feng Yuanming

Classifications

• G02B27/281

  used for attenuating light intensity, e.g. comprising rotatable polarising elements · CPC title

• G02F1/29

  for the control of the position or the direction of light beams, i.e. deflection · CPC title

• G02B5/30

  Polarising elements (light-modulating devices with active elements G02F1/00) · CPC title

• B60Q2300/056

  Special anti-blinding beams, e.g. a standard beam is chopped or moved in order not to blind · CPC title

• B60Q2300/42

  oncoming vehicle · CPC title