Vehicle glare reducing systems

• US 20110288725A1
• Filed: 07/28/2011
• Published: 11/24/2011
• Est. Priority Date: 08/06/2007
• Status: Abandoned Application

• Current Assignee: NXP B.V. (NXP Semiconductors NV)
• Original Assignee: NXP B.V. (NXP Semiconductors NV)
• Inventors: Yuter, Seymour C.
• Application Number:
  US13/136,286
• Publication Number:
  US 20110288725A1
• Time in Patent Office: Days
• US Class Current: 701/36
• CPC Class Codes: B60J 3/02 adjustable in position B60J3/002, B60J3/005 take precedence
• CPC Class Codes: B60J 3/04 adjustable in transparency

Abstract

A vehicle glare reducing system comprising automatically optically detecting when an oncoming vehicle with lit headlights is approaching the driver and automatically operating a glare reducing means attached to the driver'"'"'s side of a vehicle'"'"'s windshield to block the glare, and automatically optically detecting when no oncoming vehicle with lit headlights is approaching the driver and automatically operating the glare reducing means to allow the driver to see through the glare reducing means, with part of an inside edge of the glare reducing means substantially vertically aligned with substantially the horizontal center of the vehicle'"'"'s steering wheel.

Claims

1. A method of reducing glare from oncoming vehicle headlights, said method comprising:

Providing glare reducing means for a vehicle front windshield glass, the vehicle having a driver'"'"'s side, a passenger side and a steering wheel, said glare reducing means connected to said front windshield glass and adapted to substantially transmit light through said vehicle front windshield glass and alternatively to substantially reduce transmitted light through said vehicle front windshield glass, the glare reducing means having a width less than 30 percent of the average horizontal width of the vehicle'"'"'s front windshield glass and having part of an inside edge substantially vertically aligned with substantially the horizontal center of said steering wheel with the area of said front windshield glass above substantially half of said steering wheel and the passenger'"'"'s side being unblocked so that the driver can always see the driver'"'"'s side of the road;

Providing automatic optical detecting means on the vehicle for automatically optically detecting when an oncoming vehicle with lit headlights is approaching the driver and automatically optically detecting when an oncoming vehicle with lit headlights is not approaching the driver;

Driving the vehicle on a surface that can have oncoming traffic;

Automatically optically detecting when at least one oncoming vehicle with lit headlights is approaching the driver;

Automatically operating said glare reducing means to substantially reduce transmitted light through said vehicle front windshield glass in response to automatically optically detecting when at least one oncoming vehicle with lit headlights is approaching the driver to reduce headlight glare through said glare reducing means including the area between said inside edge and the remaining area of said glare reducing means when there is at least one oncoming vehicle with lit headlights approaching;

Automatically optically detecting when an oncoming vehicle with lit headlights is not approaching the driver;

Automatically operating said glare reducing means to substantially transmit light through said vehicle front windshield glass in response to automatically optically detecting when an oncoming vehicle with lit headlights is not approaching the driver to allow a driver to see through said glare reducing means when there is no oncoming traffic with lit headlights approaching; and

Repeating the automatic substantially light reducing and automatic substantially light transmitting steps by said glare reducing means while driving to accommodate varying oncoming traffic.

2. A method of reducing glare from oncoming vehicle headlights according to claim 1 wherein said glare reducing means comprises a smart glass panel directly and solely attached to the vehicle'"'"'s front windshield glass.

3. A method of reducing glare from oncoming vehicle headlights according to claim 1 wherein said glare reducing means is a smart glass area in the vehicle'"'"'s front windshield glass.

4. A glare reducing system for a vehicle having a driver'"'"'s side and a passenger'"'"'s side comprising:

a front windshield glass and steering wheel on said vehicle;

glare reducing means comprising said front windshield glass adapted to substantially transmit light and alternatively to substantially reduce transmitted light through said front windshield glass, said glare reducing means having a width less than 30 percent of the average horizontal width of said front windshield glass and having part of an inside edge substantially vertically aligned with substantially the horizontal center of said steering wheel with the area of said front windshield glass above substantially half of said steering wheel and the passenger'"'"'s side being unblocked so that the driver can always see the driver'"'"'s side of the road;

automatic optical detecting means on said vehicle for automatically detecting when there is an oncoming vehicle with lit headlights and when there is no oncoming vehicle with lit headlights;

whereby for nighttime driving said automatic optical detecting means operates said glare reducing means to substantially transmit light through said vehicle front windshield glass when there is no oncoming vehicle with lit headlights to allow a driver to see through said glare reducing means; and

whereby for nighttime driving said automatic detecting means operates said glare reducing means to substantially reduce light through said vehicle front windshield glass including the area between said inside edge and the remaining area of said glare reducing means when there is an oncoming vehicle with lit headlights to reduce glare.

5. A glare reducing system for a vehicle according to claim 4 wherein said glare reducing means is a smart glass panel attached directly to said vehicle'"'"'s front windshield glass.

6. A glare reducing system for a vehicle according to claim 4 wherein said glare reducing means is a smart glass area in the vehicle'"'"'s front windshield glass.

7. A glare reducing system for a vehicle having a driver'"'"'s side and a passenger'"'"'s side comprising:

a front windshield glass and a steering wheel on the vehicle;

glare reducing means on the vehicle adapted to substantially transmit light through said vehicle front windshield glass and alternatively to substantially reduce transmitted light through said vehicle front windshield glass, said glare reducing means connected to said front windshield glass and having a width less than 30 percent of the average horizontal width of said front windshield glass and having part of an inside edge substantially vertically aligned with substantially the horizontal center of said steering wheel with the area of said front windshield glass above substantially half of said steering wheel and the passenger'"'"'s side being unblocked so that the driver can always see the driver'"'"'s side of the road;

whereby for nighttime driving said glare reducing means operates to substantially transmit light through said vehicle front windshield glass when there is no oncoming vehicle with lit headlights to allow a driver to see through said glare reducing means and to substantially reduce transmitted light through said vehicle front windshield glass including the area between said inside edge and the remaining area of said glare reducing means when there is an oncoming vehicle with lit headlights to reduce glare.

8. A glare reducing system according to claim 7 further comprising:

a manually operated switch on the steering wheel of the vehicle adapted to operate said glare reducing means to substantially transmit light through said vehicle front windshield glass and alternatively to substantially reduce transmitted light through said vehicle front windshield glass.

12. A glare reducing system for a vehicle according to claim 7 wherein said glare reducing means is a smart glass panel attached to the inside of said vehicle'"'"'s front windshield glass.

13. A glare reducing system for a vehicle according to claim 7 wherein said glare reducing means is a smart glass area in said vehicle'"'"'s front windshield glass.

14. A glare reducing system for a vehicle according to claim 12 further comprising a wireless switch detachably attached to the surface of the vehicle'"'"'s steering wheel to remotely operate said smart glass panel to substantially transmit light through said vehicle front windshield glass when there is no oncoming vehicle with lit headlights to allow a driver to see through said glare reducing means and to substantially reduce transmitted light through said vehicle front windshield glass when there is an oncoming vehicle with lit headlights to reduce glare.

15. A glare reducing system for a vehicle according to claim 7 further comprising a battery operated wireless switch detachably mounted on said steering wheel a circuit operated by said battery operated wireless switch comprising a 12 VDC wireless relay remotely operated by said battery operated wireless switch connected to the vehicle'"'"'s 12 VDC system feeding a 12 VDC inverter to convert about 12 VDC to about 120 VAC which is connected to said glare reducing means to operate said glare reducing means while driving to substantially transmit light through said vehicle front windshield glass to allow a driver to see through said glare reducing means when there is no oncoming traffic with lit headlights approaching.

16. A glare reducing system for a vehicle according to claim 14 further comprising a circuit operated by said wireless switch comprising a wirelessly-operated 12 VDC relay connected to the vehicle'"'"'s 12 VDC system feeding a 12 VDC inverter to convert about 12 VDC to about 120 VAC which is connected to said glare reducing means to operate said glare reducing means while driving to substantially transmit light through said vehicle front windshield glass to allow a driver to see through said glare reducing means when there is no oncoming traffic with lit headlights approaching.

17. A glare reducing system for a vehicle according to claim 7 wherein said glare reducing means is a smart glass panel detachably attached to the inside of said vehicle'"'"'s front windshield glass.

18. A glare reducing system for a vehicle according to claim 7 further comprising automatic optical detecting means on said vehicle to operate said glare reducing means to substantially transmit light when there is no oncoming vehicle with lit headlights to allow a driver to see through said glare reducing means and to substantially reduce transmitted light when there is an oncoming vehicle with lit headlights to reduce glare.

19. A glare reducing system for a vehicle according to claim 7 further comprising a manually operated switch to operate said glare reducing means to substantially transmit light through said vehicle front windshield glass to allow a driver to see through said glare reducing means even if there is an oncoming vehicle with glaring headlights.

20. A glare reducing system for a vehicle according to claim 7 further comprising a manually operated switch to operate said glare reducing means to substantially transmit light through said vehicle front windshield glass to allow a driver to see through said glare reducing means when the vehicle is making a left turn even if there is an oncoming vehicle with glaring headlights.

9. A method of reducing glare from oncoming vehicle headlights, said method comprising:

Providing an attachment for a vehicle, said vehicle having a driver'"'"'s side, a passenger side, a front windshield glass and a steering wheel, said attachment comprising;

Glare reducing means adapted to substantially transmit light through said vehicle front windshield glass and alternatively to substantially reduce light through said vehicle front windshield glass, said glare reducing means having a width less than 30 percent of the average horizontal width of the vehicle'"'"'s front windshield glass and having part of an inside edge substantially vertically aligned with substantially the horizontal center of said steering wheel with the area of said front windshield glass above substantially half of said steering wheel and the passenger'"'"'s side being unblocked so that the driver can always see the driver'"'"'s side of the road;

Securing said glare reducing means with mounting means directly on the vehicle'"'"'s front windshield glass on the driver'"'"'s side such that the passenger side is uncovered;

Driving said vehicle on a surface that can have oncoming traffic;

Operating said glare reducing means while driving to substantially transmit light to allow a driver to see through said glare reducing means when there is no oncoming traffic with lit headlights approaching;

Operating said glare reducing means to substantially reduce light while driving to reduce glare including the area between said inside edge and the remaining area of said glare reducing means when there is at least one oncoming vehicle with lit headlights approaching the driver; and

Repeating the substantially light transmitting and substantially light reducing steps by said glare reducing means while driving to accommodate varying oncoming traffic.

10. A method of reducing glare from oncoming vehicle headlights according to claim 9 wherein said glare reducing means comprises a smart glass panel remotely operated by a wireless switch attached to the surface of the vehicle'"'"'s steering wheel.

11. A method of reducing glare from oncoming vehicle headlights according to claim 10 wherein said wireless switch attached to the surface of the vehicle'"'"'s steering wheel is operable by the thumb of the driver'"'"'s hand.