GB634976A - Improvements in lighting or lantern fittings for use in connection with a horizontally disposed linear light source - Google Patents

Improvements in lighting or lantern fittings for use in connection with a horizontally disposed linear light source

Info

Publication number
GB634976A
GB634976A GB4202/48A GB420248A GB634976A GB 634976 A GB634976 A GB 634976A GB 4202/48 A GB4202/48 A GB 4202/48A GB 420248 A GB420248 A GB 420248A GB 634976 A GB634976 A GB 634976A
Authority
GB
United Kingdom
Prior art keywords
light source
lamp
reflector
areas
lighting
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
GB4202/48A
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.)
Revo Electric Co Ltd
Original Assignee
Revo Electric Co 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 Revo Electric Co Ltd filed Critical Revo Electric Co Ltd
Priority to GB4202/48A priority Critical patent/GB634976A/en
Publication of GB634976A publication Critical patent/GB634976A/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
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

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

Abstract

634,976. Electric lighting fittings. REVO ELECTRIC CO., Ltd., and HARTILL, P. Feb. 13, 1948, No. 4202. [Classes 75 (ii) and 75 (iv)] A lighting fitting for a horizontal linear light source (fluorescent discharge lamp) a, comprises a transparent panel having a plain upper area d and a prismatic lower area d<SP>1</SP>, arranged on each side of the light source, and superposed reflectors f, g reflector f being disposed above and reflector g extending from each side of said light source. The prismatic areas d<SP>1</SP> of the panels have horizontally extending ribs. The reflector f, which is arcuate in in form on each side of a vertical plane through the lamp axis, directs light from the lamp a through the plain upper areas of the transparent side panels. The reflectors g, which are rectangular in shape and suspended from the reflector f, are horizontally disposed above the axis of the lamp a so that direct light from the lamp a is prevented from passing through the plain upper areas d of the panels but is re-directed to pass through the prismatic lower areas d<SP>1</SP>.
GB4202/48A 1948-02-13 1948-02-13 Improvements in lighting or lantern fittings for use in connection with a horizontally disposed linear light source Expired GB634976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4202/48A GB634976A (en) 1948-02-13 1948-02-13 Improvements in lighting or lantern fittings for use in connection with a horizontally disposed linear light source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4202/48A GB634976A (en) 1948-02-13 1948-02-13 Improvements in lighting or lantern fittings for use in connection with a horizontally disposed linear light source

Publications (1)

Publication Number Publication Date
GB634976A true GB634976A (en) 1950-03-29

Family

ID=9772642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4202/48A Expired GB634976A (en) 1948-02-13 1948-02-13 Improvements in lighting or lantern fittings for use in connection with a horizontally disposed linear light source

Country Status (1)

Country Link
GB (1) GB634976A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958682C (en) * 1951-12-14 1957-07-18 R L Seidenberg Freres Sa Light diffusing screen for fluorescent tubes
US5558425A (en) * 1993-11-09 1996-09-24 Valeo Electronique Fluorescent tube cabin lighting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958682C (en) * 1951-12-14 1957-07-18 R L Seidenberg Freres Sa Light diffusing screen for fluorescent tubes
US5558425A (en) * 1993-11-09 1996-09-24 Valeo Electronique Fluorescent tube cabin lighting

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