GB489442A - Improvements in or relating to anti-dazzle devices for use by pedestrians and other road users - Google Patents

Improvements in or relating to anti-dazzle devices for use by pedestrians and other road users

Info

Publication number
GB489442A
GB489442A GB233737A GB233737A GB489442A GB 489442 A GB489442 A GB 489442A GB 233737 A GB233737 A GB 233737A GB 233737 A GB233737 A GB 233737A GB 489442 A GB489442 A GB 489442A
Authority
GB
United Kingdom
Prior art keywords
screens
vision
clear
angle
dazzle
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
GB233737A
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 GB233737A priority Critical patent/GB489442A/en
Publication of GB489442A publication Critical patent/GB489442A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/16—Shades; shields; Obturators, e.g. with pinhole, with slot

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

489,442. Anti-dazzle devices. MENGHI, G.B. Jan. 26, 1937, No. 2337. [Class 97 (i)] An anti-dazzle device to be worn by vehicle drivers &c. comprises an arrangement of - in the form of a grill permitting clear vision between the screens when the inclination of the line of sight to the plane of the grille does not exceed a predetermined angle, and providing obscured vision when the said angle is exceeded. The form shown in Figs. 1 and 2 comprises a series of parallel screens 1 separated by clear spaces and mounted in a frame. The distance between the screens is proportioned to their thickness so that they cut off the light when the inclination of the plane of the screens to the line of vision exceeds the angles indicated by 21 and 2<11>. A layer of transparent material may be provided in front of or behind the device, or the spaces between the screens may be filled in with transparent material. Fig. 5 shows a form in which screens are disposed on two sheets of material 5, 6, capable of relative displacement to vary the angle at which light is cut off. The form shown in Figs. 7 and 9 consists of a corrugated plate stamped to form apertures 7. Fig. 10 shows an eyepiece for goggles, having a horizontal and a vertical grille and also a clear portion giving unobstructed vision.
GB233737A 1937-01-26 1937-01-26 Improvements in or relating to anti-dazzle devices for use by pedestrians and other road users Expired GB489442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB233737A GB489442A (en) 1937-01-26 1937-01-26 Improvements in or relating to anti-dazzle devices for use by pedestrians and other road users

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB233737A GB489442A (en) 1937-01-26 1937-01-26 Improvements in or relating to anti-dazzle devices for use by pedestrians and other road users

Publications (1)

Publication Number Publication Date
GB489442A true GB489442A (en) 1938-07-26

Family

ID=9737764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB233737A Expired GB489442A (en) 1937-01-26 1937-01-26 Improvements in or relating to anti-dazzle devices for use by pedestrians and other road users

Country Status (1)

Country Link
GB (1) GB489442A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506153A (en) * 1947-06-17 1950-05-02 North American Paper Process C Opacification of paper
US2511590A (en) * 1946-07-01 1950-06-13 Karl M Keck Glare shield
US2875670A (en) * 1954-12-08 1959-03-03 Mathew H Thornton Anti-glare device
US3133139A (en) * 1958-05-19 1964-05-12 George L Beers Directional glare reducing viewing device
US3337286A (en) * 1964-02-21 1967-08-22 Emil S Wieszeck Automatically controlled translucent screen for a rear view mirror
US3510206A (en) * 1966-03-07 1970-05-05 Richard D Smith Transparent mirror having electromagnetically adjustable reflector elements
US4750812A (en) * 1985-01-24 1988-06-14 Kabushika Kaisha Shuho Objective observation optical material
DE19807716A1 (en) * 1998-02-24 1999-09-09 Kipernik Perforated spectacles with or without lenses
DE19929958C1 (en) * 1999-06-29 2000-11-16 Kipernik Efim Spectacles for short sight uses patterns of holes in diaphragms with or without lenses to be moved by sliding for reading or long distance viewing and according to the light in the same spectacles structure
WO2015136088A1 (en) * 2014-03-14 2015-09-17 Essilor International (Compagnie Generale D'optique) An optical see-trough head-mounted device
CN112255799A (en) * 2020-11-09 2021-01-22 Oppo广东移动通信有限公司 Wearable device and control method of wearable device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511590A (en) * 1946-07-01 1950-06-13 Karl M Keck Glare shield
US2506153A (en) * 1947-06-17 1950-05-02 North American Paper Process C Opacification of paper
US2875670A (en) * 1954-12-08 1959-03-03 Mathew H Thornton Anti-glare device
US3133139A (en) * 1958-05-19 1964-05-12 George L Beers Directional glare reducing viewing device
US3337286A (en) * 1964-02-21 1967-08-22 Emil S Wieszeck Automatically controlled translucent screen for a rear view mirror
US3510206A (en) * 1966-03-07 1970-05-05 Richard D Smith Transparent mirror having electromagnetically adjustable reflector elements
US4750812A (en) * 1985-01-24 1988-06-14 Kabushika Kaisha Shuho Objective observation optical material
DE19807716A1 (en) * 1998-02-24 1999-09-09 Kipernik Perforated spectacles with or without lenses
DE19807716C2 (en) * 1998-02-24 2003-09-04 Efim Kipernik Pinhole glasses that have two pinhole covers with adjustable holes
DE19929958C1 (en) * 1999-06-29 2000-11-16 Kipernik Efim Spectacles for short sight uses patterns of holes in diaphragms with or without lenses to be moved by sliding for reading or long distance viewing and according to the light in the same spectacles structure
WO2015136088A1 (en) * 2014-03-14 2015-09-17 Essilor International (Compagnie Generale D'optique) An optical see-trough head-mounted device
CN112255799A (en) * 2020-11-09 2021-01-22 Oppo广东移动通信有限公司 Wearable device and control method of wearable device

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