GB549264A - Improvements in lighting means for improving visibility in fog - Google Patents

Improvements in lighting means for improving visibility in fog

Info

Publication number
GB549264A
GB549264A GB3314/41A GB331441A GB549264A GB 549264 A GB549264 A GB 549264A GB 3314/41 A GB3314/41 A GB 3314/41A GB 331441 A GB331441 A GB 331441A GB 549264 A GB549264 A GB 549264A
Authority
GB
United Kingdom
Prior art keywords
face
lighting means
fog
lamp
filled
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
GB3314/41A
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.)
Switchgear & Cowans Ltd
Original Assignee
Switchgear & Cowans Ltd
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 Switchgear & Cowans Ltd filed Critical Switchgear & Cowans Ltd
Priority to GB3314/41A priority Critical patent/GB549264A/en
Publication of GB549264A publication Critical patent/GB549264A/en
Expired 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • 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

549,264. Lamps; liquid prisms. SWITCHGEAR & COWANS, Ltd., and MAXWELL, A. V. March 11, 1941, No. 3314. [Class 97 (i)] [Also in Group XI] Lighting means for obtaining increased visibility in fog comprises a hollow 90 degrees prism a filled with a highly refractive liquid, and means, such as a lamp d and reflector e, for projecting a light beam through one face thereof on to its hypotenuse face c, the face c being silvered or otherwise made highly reflective. The prism may have glass or plastic faces and ends of metal or other material, and may be filled with nitrobenzene and sealed. The lamp may be a cadmium electric bulb or a coloured bulb.
GB3314/41A 1941-03-11 1941-03-11 Improvements in lighting means for improving visibility in fog Expired GB549264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3314/41A GB549264A (en) 1941-03-11 1941-03-11 Improvements in lighting means for improving visibility in fog

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3314/41A GB549264A (en) 1941-03-11 1941-03-11 Improvements in lighting means for improving visibility in fog

Publications (1)

Publication Number Publication Date
GB549264A true GB549264A (en) 1942-11-13

Family

ID=9755976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3314/41A Expired GB549264A (en) 1941-03-11 1941-03-11 Improvements in lighting means for improving visibility in fog

Country Status (1)

Country Link
GB (1) GB549264A (en)

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