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GB955877A - Improvements in electric illumination systems employing electric discharge lamps - Google Patents

Improvements in electric illumination systems employing electric discharge lamps

Info

Publication number
GB955877A
GB955877A GB30096/61A GB3009661A GB955877A GB 955877 A GB955877 A GB 955877A GB 30096/61 A GB30096/61 A GB 30096/61A GB 3009661 A GB3009661 A GB 3009661A GB 955877 A GB955877 A GB 955877A
Authority
GB
United Kingdom
Prior art keywords
lamp
sodium
lantern
fluorescent
radiation
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
GB30096/61A
Inventor
Harold Robert Ruff
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB30096/61A priority Critical patent/GB955877A/en
Publication of GB955877A publication Critical patent/GB955877A/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
    • F21S8/088—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device mounted on top of the standard, e.g. for pedestrian zones
    • 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
    • F21Y2103/20—Elongate light sources, e.g. fluorescent tubes of polygonal shape, e.g. square or rectangular

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

955,877. Lanterns for street lighting. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 10, 1962 [Aug. 21, 1961], No. 30096/61. Heading F4R. A source of illumination, especially for street lighting, comprises a lantern incorporating at least one sodium vapour discharge lamp and at least one fluorescent electric discharge lamp producing a blue-green radiation complementary to the radiation from the sodium vapour lamp, all the lamps being disposed and light-reflecting surfaces, if used, being arranged within the lantern to produce a comopsite radiation of uniform colour. The auxiliary lamp may use a phosphor of strontium halophosphate activated with antimony. In one arrangement, the sodium lamp is mounted with its axis vertical and a helical tubular fluorescent lamp arranged around it. In another arrangement, the sodium lamp 2 is again vertical and fluorescent lamps 3 are arranged in an equilateral triangle around it. Alternatively, circular fluorescent lamps concentric with and in planes normal to the axis of the sodium lamp may be used. The sodium lamp may be placed with its axis horizontal and the fluorescent lamps spaced around it. The lantern may have a circular or polygonal translucent window 4 closed at the top by an opaque cover 6 and mounted on a cup-shaped part 5 on top of a post. Specification 923,961 is referred to.
GB30096/61A 1961-08-21 1961-08-21 Improvements in electric illumination systems employing electric discharge lamps Expired GB955877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB30096/61A GB955877A (en) 1961-08-21 1961-08-21 Improvements in electric illumination systems employing electric discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30096/61A GB955877A (en) 1961-08-21 1961-08-21 Improvements in electric illumination systems employing electric discharge lamps

Publications (1)

Publication Number Publication Date
GB955877A true GB955877A (en) 1964-04-22

Family

ID=10302220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30096/61A Expired GB955877A (en) 1961-08-21 1961-08-21 Improvements in electric illumination systems employing electric discharge lamps

Country Status (1)

Country Link
GB (1) GB955877A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726420A1 (en) * 1995-02-10 1996-08-14 ZUMTOBEL LICHT GmbH Lighting fixture, especially for humid space, with a two-part closed housing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726420A1 (en) * 1995-02-10 1996-08-14 ZUMTOBEL LICHT GmbH Lighting fixture, especially for humid space, with a two-part closed housing

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