GB523288A - Improvements in and relating to lens plates for street lighting and other purposes - Google Patents

Improvements in and relating to lens plates for street lighting and other purposes

Info

Publication number
GB523288A
GB523288A GB1763/39A GB176339A GB523288A GB 523288 A GB523288 A GB 523288A GB 1763/39 A GB1763/39 A GB 1763/39A GB 176339 A GB176339 A GB 176339A GB 523288 A GB523288 A GB 523288A
Authority
GB
United Kingdom
Prior art keywords
relating
purposes
street lighting
lens plates
prism
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
GB1763/39A
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.)
Holophane Ltd
Original Assignee
Holophane 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 Holophane Ltd filed Critical Holophane Ltd
Priority to GB1763/39A priority Critical patent/GB523288A/en
Publication of GB523288A publication Critical patent/GB523288A/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
    • F21S13/00—Non-electric lighting devices or systems employing a point-like light source; Non-electric lighting devices or systems employing a light source of unspecified shape

Landscapes

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

Abstract

523,288. Prism plates HOLOPHANE, Ltd., an( ENGLISH, S. Jan. 18 1939, No. 1763. [Class 75 (ii) A prism plate similar to that described in Specification 423,761 i modified to make it suit able for use with horizontal source 7. A reflector 3 can be fitted to direct light through an upper clear part 4 o the plate.
GB1763/39A 1939-01-18 1939-01-18 Improvements in and relating to lens plates for street lighting and other purposes Expired GB523288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1763/39A GB523288A (en) 1939-01-18 1939-01-18 Improvements in and relating to lens plates for street lighting and other purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1763/39A GB523288A (en) 1939-01-18 1939-01-18 Improvements in and relating to lens plates for street lighting and other purposes

Publications (1)

Publication Number Publication Date
GB523288A true GB523288A (en) 1940-07-10

Family

ID=9727552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1763/39A Expired GB523288A (en) 1939-01-18 1939-01-18 Improvements in and relating to lens plates for street lighting and other purposes

Country Status (1)

Country Link
GB (1) GB523288A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853599A (en) * 1956-05-17 1958-09-23 Kliegl Bros Universal Electric Oval beam lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853599A (en) * 1956-05-17 1958-09-23 Kliegl Bros Universal Electric Oval beam lens

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