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GB2362206A - Polarising light from vehicle headlamps - Google Patents

Polarising light from vehicle headlamps Download PDF

Info

Publication number
GB2362206A
GB2362206A GB0011518A GB0011518A GB2362206A GB 2362206 A GB2362206 A GB 2362206A GB 0011518 A GB0011518 A GB 0011518A GB 0011518 A GB0011518 A GB 0011518A GB 2362206 A GB2362206 A GB 2362206A
Authority
GB
United Kingdom
Prior art keywords
polarising
headlamps
headlamp
viewing
viewing means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0011518A
Other versions
GB0011518D0 (en
Inventor
John Aldersey-Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALDERSEY WILLIAMS JOHN
Original Assignee
ALDERSEY WILLIAMS JOHN
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ALDERSEY WILLIAMS JOHN filed Critical ALDERSEY WILLIAMS JOHN
Priority to GB0011518A priority Critical patent/GB2362206A/en
Publication of GB0011518D0 publication Critical patent/GB0011518D0/en
Publication of GB2362206A publication Critical patent/GB2362206A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/14—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing polarised light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
    • F21S41/135—Polarised
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A system for reducing glare from vehicle headlamps comprises polarising the light emanating from said headlamps. Preferably the system further comprises viewing means which do not pass light polarised by said polarising means. Advantageously, the polarising means is a filter. Conveniently, the polarising means comprises a film or coating applied to the headlamp, or a lens attached to the headlamp. Advantageously, the viewing means is a filter. Suitably, the viewing means comprises a film or coating applied to the windscreen and/or rear-view mirrors. Alternatively the viewing means comprises polarising spectacles worn by the driver.

Description

1 2362206
DESCRIPTION
A system for reducing glare from vehicle headlamps This invention relates to systems and methods for reducing glare from light sources, particularly but not exclusively vehicle headlamps.
The glare from the headlamps of vehicles at night can be dangerous or distracting to drivers of other vehicles.
An object of this invention is to reduce the glare from vehicle headlamps.
One aspect of the present invention provides a system for reducing glare from vehicle headlamps. The invention comprises polarising means for polarising the light emanating from said headlamps.
Preferably, the system further comprises viewing means which do not pass light polarised by said polarising means.
Accordingly, the present invention comprises polarising means for polarising the light emanating from the headlamps of a first vehicle and complementary viewing means for blocking the passage of said polarised light to the driver of a second vehicle.
Advantageously, the polarising means is a filter.
The polarising means may be attached to, or incorporated in, the headlamp during manufacture or after.
Conveniently, the polarising means comprises a film or coating applied to the headlamp. Suitably, the polarising means comprises a lens attached to the headlamp.
In a preferred embodiment of the invention, the viewing means is a filter. Conveniently, the viewing means comprises a film or coating applied to the windscreen andlor rear-view mirrors.
The viewing means may be attached to the windscreen and/or mirrors either during or after manufacture. The principles of affixing such films is known to persons skilled in the art.
In an alternative embodiment of the invention, the viewing means are polarising glasses, for example conventional polarising sunglasses, which are worn by the driver of the vehicle. The principles of polarising sunglasses are known by persons skilled in the art.
A second aspect of the invention provides a method of reducing the glare from vehicle headlamps comprising polarising the light emanating from said headlamps and blocking the passage of said light.
A preferred embodiment of the present invention is described with reference to the following figure, which shows an exploded yiew of the polarising means.
2 FIGURE Figure 1 shows schematically the polarising means (1) in an exploded view adjacent to the vehicle headlamp (2).
The polarising means (1) contains polarising slits which only permit the passage of planepolarised light in a chosen orientation. The direction of polarisation is not visible to the naked eye. The device may be attached to the headlamp by adhesive, or as a paint film, or by clips (3).
The headlamp (2) emits un-polarised light, indicated schematically by the light rays. The polarising means (1) only permits the passage of the plane-polarised components of the light in the chosen orientation (in this example, vertically) (4) and blocks the orthogonally planepolarised components (in this example, horizontally) (5).
3

Claims (9)

1. A system for reducing glare from vehicle headlamps comprising polarising means for polarising the light emanating from the said headlamps.
2. A system according to claim 1 further comprising viewing means which do not pass light polarised by said polarising means.
3. A system according to claim 1 wherein the polarising means is a filter.
4. A system according to claim 1 wherein the polarising means comprises a film or coating applied to the headlamp.
5. A system according to claim 1 wherein the polarising means comprises a leans attached to the headlamp.
6. A system according to claim 2 wherein the viewing means is a filter.
7. A system according to claim 2 wherein the viewing means comprises a film or coating applied to the windscreen andlor rear-view mirrors.
8. A system according to claim 2 wherein the viewing means comprises glasses.
9. A method of reducing glare from vehicle headlamps comprising polarising the light emanating from said headlamps and blocking the passage of said polarised fight.
GB0011518A 2000-05-12 2000-05-12 Polarising light from vehicle headlamps Withdrawn GB2362206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0011518A GB2362206A (en) 2000-05-12 2000-05-12 Polarising light from vehicle headlamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0011518A GB2362206A (en) 2000-05-12 2000-05-12 Polarising light from vehicle headlamps

Publications (2)

Publication Number Publication Date
GB0011518D0 GB0011518D0 (en) 2000-06-28
GB2362206A true GB2362206A (en) 2001-11-14

Family

ID=9891501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0011518A Withdrawn GB2362206A (en) 2000-05-12 2000-05-12 Polarising light from vehicle headlamps

Country Status (1)

Country Link
GB (1) GB2362206A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10746364B2 (en) 2017-02-10 2020-08-18 Goodrich Lighting Systems Gmbh Ground illumination aircraft light unit

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB702106A (en) * 1951-03-30 1954-01-06 Erwin Kasemann Improvements in motor vehicle lighting, with use of polarized light
GB918445A (en) * 1961-04-26 1963-02-13 Tasaburo Yamaguti Improvements relating to the prevention of glare
US3912920A (en) * 1974-02-06 1975-10-14 Josuke Kubota Polarized light illumination device
WO1984001012A1 (en) * 1982-08-27 1984-03-15 Brooks Ronald H Vehicle lighting system
WO1997027422A1 (en) * 1996-01-23 1997-07-31 Roland Bouillart Polarisation methods and devices for enhancing visibility, particularly in vehicles
GB2323916A (en) * 1997-04-05 1998-10-07 Marston John Hart Headlight glare reduction
WO1999024288A1 (en) * 1997-11-06 1999-05-20 Lenoci, Antonio Antidazzle polarized lighting system for vehicles
EP0930457A2 (en) * 1998-01-15 1999-07-21 TRW Inc. Polarized headlamps and rear view mirrors
GB2346955A (en) * 1999-02-09 2000-08-23 Roger Hobbs Polarising headlights

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB702106A (en) * 1951-03-30 1954-01-06 Erwin Kasemann Improvements in motor vehicle lighting, with use of polarized light
GB918445A (en) * 1961-04-26 1963-02-13 Tasaburo Yamaguti Improvements relating to the prevention of glare
US3912920A (en) * 1974-02-06 1975-10-14 Josuke Kubota Polarized light illumination device
WO1984001012A1 (en) * 1982-08-27 1984-03-15 Brooks Ronald H Vehicle lighting system
WO1997027422A1 (en) * 1996-01-23 1997-07-31 Roland Bouillart Polarisation methods and devices for enhancing visibility, particularly in vehicles
GB2323916A (en) * 1997-04-05 1998-10-07 Marston John Hart Headlight glare reduction
WO1999024288A1 (en) * 1997-11-06 1999-05-20 Lenoci, Antonio Antidazzle polarized lighting system for vehicles
EP0930457A2 (en) * 1998-01-15 1999-07-21 TRW Inc. Polarized headlamps and rear view mirrors
GB2346955A (en) * 1999-02-09 2000-08-23 Roger Hobbs Polarising headlights

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10746364B2 (en) 2017-02-10 2020-08-18 Goodrich Lighting Systems Gmbh Ground illumination aircraft light unit

Also Published As

Publication number Publication date
GB0011518D0 (en) 2000-06-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)