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GB191112751A - Improvements in or relating to Lamps. - Google Patents

Improvements in or relating to Lamps.

Info

Publication number
GB191112751A
GB191112751A GB191112751DA GB191112751A GB 191112751 A GB191112751 A GB 191112751A GB 191112751D A GB191112751D A GB 191112751DA GB 191112751 A GB191112751 A GB 191112751A
Authority
GB
United Kingdom
Prior art keywords
lamps
relating
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
Inventor
Josiah Lees
Francis Henry Lees
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
Application granted granted Critical
Publication of GB191112751A publication Critical patent/GB191112751A/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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • 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
    • F21S41/28—Cover glass

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
GB191112751D 1911-05-26 1911-05-26 Improvements in or relating to Lamps. Expired GB191112751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191112751T 1911-05-26

Publications (1)

Publication Number Publication Date
GB191112751A true GB191112751A (en) 1912-05-16

Family

ID=32499716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191112751D Expired GB191112751A (en) 1911-05-26 1911-05-26 Improvements in or relating to Lamps.

Country Status (1)

Country Link
GB (1) GB191112751A (en)

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