GB1059501A - Improvements in or relating to fluorescent lighting fittings - Google Patents

Improvements in or relating to fluorescent lighting fittings

Info

Publication number
GB1059501A
GB1059501A GB21240/62A GB2124062A GB1059501A GB 1059501 A GB1059501 A GB 1059501A GB 21240/62 A GB21240/62 A GB 21240/62A GB 2124062 A GB2124062 A GB 2124062A GB 1059501 A GB1059501 A GB 1059501A
Authority
GB
United Kingdom
Prior art keywords
base panel
members
side panels
dovetail
diffuser
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
GB21240/62A
Inventor
Eduard Rubini Robbins
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Priority to GB21240/62A priority Critical patent/GB1059501A/en
Publication of GB1059501A publication Critical patent/GB1059501A/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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/104—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using feather joints, e.g. tongues and grooves, with or without friction
    • 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
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • 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)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

1,059,501. Diffusers for lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 27, 1963 [June 1, 1962], No. 21240/62. Heading F4R. A diffuser of trough form for tubular fluorescent lamps comprises two side panels and a separate base portion united to the side panels by dovetail joints. The side panels 3, 4 which may be transparent or translucent and may have patterned internal or external surfaces terminate at their lower edges in T-shaped extensions 7, 8 which engage in correspondingly shaped bearer members 9, 10 supporting a base panel by means of inwardly projecting flanges 11, 12. The base panel may be transparent or translucent and may be figured on one or both sides. Alternatively, it may be in the form of a louvre. Upstanding flanges 13 on the base panel may be united to the members 9, 10 by adhesive. Alternatively, the members 9, 10 may have back-to-back dovetail openings, the base panel having dovetail portions at the edges to fit into the inwardly directed pair of these. The ends of the diffuser may be closed by panels supported by the lighting fitting.
GB21240/62A 1962-06-01 1962-06-01 Improvements in or relating to fluorescent lighting fittings Expired GB1059501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB21240/62A GB1059501A (en) 1962-06-01 1962-06-01 Improvements in or relating to fluorescent lighting fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21240/62A GB1059501A (en) 1962-06-01 1962-06-01 Improvements in or relating to fluorescent lighting fittings

Publications (1)

Publication Number Publication Date
GB1059501A true GB1059501A (en) 1967-02-22

Family

ID=10159567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21240/62A Expired GB1059501A (en) 1962-06-01 1962-06-01 Improvements in or relating to fluorescent lighting fittings

Country Status (1)

Country Link
GB (1) GB1059501A (en)

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