GB918445A - Improvements relating to the prevention of glare - Google Patents

Improvements relating to the prevention of glare

Info

Publication number
GB918445A
GB918445A GB15150/61A GB1515061A GB918445A GB 918445 A GB918445 A GB 918445A GB 15150/61 A GB15150/61 A GB 15150/61A GB 1515061 A GB1515061 A GB 1515061A GB 918445 A GB918445 A GB 918445A
Authority
GB
United Kingdom
Prior art keywords
type
light source
polarization plate
glare
prevention
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.)
Expired
Application number
GB15150/61A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB15150/61A priority Critical patent/GB918445A/en
Publication of GB918445A publication Critical patent/GB918445A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

918,445. Anti-dazzle devices. YAMAGUTI, T. April 26, 1961, No. 15150/61. Drawings to Specification. Class 75 (4). In a method of prevention of glare from a brilliant light source, a sodium nitrate polarization plate of the scattering type, e.g. of the type described in Specification 862,732, is arranged in front of the light source and a polarization plate of either the absorption type or the scattering type in front of the eyes of the person illuminated by the light source. A vehicle lamp is described having the usual bulb and parabolic reflector, the front lens being formed by parallel glass plates having rough ground surfaces facing one another with the interposition of a thin crystal of sodium nitrate, forming a polarization plate of the scattering type, a similar plate or one of the absorption type being arranged in front of the eyes of the driver.
GB15150/61A 1961-04-26 1961-04-26 Improvements relating to the prevention of glare Expired GB918445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB15150/61A GB918445A (en) 1961-04-26 1961-04-26 Improvements relating to the prevention of glare

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15150/61A GB918445A (en) 1961-04-26 1961-04-26 Improvements relating to the prevention of glare

Publications (1)

Publication Number Publication Date
GB918445A true GB918445A (en) 1963-02-13

Family

ID=10053925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15150/61A Expired GB918445A (en) 1961-04-26 1961-04-26 Improvements relating to the prevention of glare

Country Status (1)

Country Link
GB (1) GB918445A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323916A (en) * 1997-04-05 1998-10-07 Marston John Hart Headlight glare reduction
GB2362206A (en) * 2000-05-12 2001-11-14 Aldersey Williams John Polarising light from vehicle headlamps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323916A (en) * 1997-04-05 1998-10-07 Marston John Hart Headlight glare reduction
GB2362206A (en) * 2000-05-12 2001-11-14 Aldersey Williams John Polarising light from vehicle headlamps

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