GB909621A - Aperture fluorescent lamp - Google Patents

Aperture fluorescent lamp

Info

Publication number
GB909621A
GB909621A GB23668/60A GB2366860A GB909621A GB 909621 A GB909621 A GB 909621A GB 23668/60 A GB23668/60 A GB 23668/60A GB 2366860 A GB2366860 A GB 2366860A GB 909621 A GB909621 A GB 909621A
Authority
GB
United Kingdom
Prior art keywords
coating
parabola
fluorescent
tube
aperture
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
GB23668/60A
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of GB909621A publication Critical patent/GB909621A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/17—Discharge light sources
    • F21S41/173—Fluorescent light sources
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

909,621. Fluorescent lighting units. SYLVANIA ELECTRIC PRODUCTS Inc. July 6, 1960 [July 9, 1959], No. 23668/60. Class 75 (4). [Also in Group XL (a)] The unit comprises a parabolic reflector 7 and an elongated fluorescent lamp 1 having a portion of its tube free from fluorescent coating to form an aperture extending along the lamp envelope, one edge 5 of the aperture being located at the focus of the parabola, the lamp being tangential to the axis of the parabola at that point and the other edge 8 of the aperture being of the axis. The edge 8 is situated nearer to the apex of the parabola. The unit produces a flat beam of light. A reflecting coating may be provided between the lamp envelope and the fluorescent coating and may consist of a reflecting powder such as titanium dioxide or aluminium oxide or of a metal such as aluminium or silver. The particle size of the phosphor used for the fluorescent coating may be ¢-3 microns. To avoid blackening of the uncoated portion of the tube a light transmitting coating e.g. of antimony oxide or a very thin coating of the same or a different phosphor may be applied to the inner surface of the tube or to the area not coated with the main phosphor. For the same purpose, the tube may be made of lead glass. The unit may be used for road or airport runway lighting or for motor vehicle headlamps. A half-parabola reflecting surface may be used.
GB23668/60A 1959-07-09 1960-07-06 Aperture fluorescent lamp Expired GB909621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US825915A US3115309A (en) 1959-07-09 1959-07-09 Aperture fluorescent lamp

Publications (1)

Publication Number Publication Date
GB909621A true GB909621A (en) 1962-10-31

Family

ID=25245231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23668/60A Expired GB909621A (en) 1959-07-09 1960-07-06 Aperture fluorescent lamp

Country Status (4)

Country Link
US (1) US3115309A (en)
BE (1) BE592112A (en)
DE (1) DE1818405U (en)
GB (1) GB909621A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311992A1 (en) * 1975-05-22 1976-12-17 Sun Chemical Corp TRANSPARENT WATER SLEEVE FOR ULTRAVIOLET RADIATION LAMPS
GB2149490A (en) * 1983-11-10 1985-06-12 Philips Nv U.V. Irradiation apparatus

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3275872A (en) * 1963-07-12 1966-09-27 Gen Electric Reflector fluorescent lamp
US3272977A (en) * 1964-04-17 1966-09-13 John W Holmes Light sources
US3379917A (en) * 1965-10-27 1968-04-23 Sylvania Electric Prod Fluorescent lamp with a reflective coating containing tio2 and sb or its oxide
US3409792A (en) * 1965-11-15 1968-11-05 Gen Electric Fluorescent panel lamps with white emitting phosphor coated on envelope backplate and red emitting phosphor coated on envelope faceplate
US3457447A (en) * 1966-07-01 1969-07-22 Sylvania Electric Prod Apertured fluorescent lamp with lens along the aperture
US3890530A (en) * 1973-01-22 1975-06-17 Gen Electric Precoat for fluorescent lamp
US4061946A (en) * 1975-10-06 1977-12-06 Gte Sylvania Incorporated Fluorescent lamp having zero back brightness
US4161014A (en) * 1976-08-23 1979-07-10 Bausch & Lomb Incorporated Luminaire having a configured interference mirror and reflector
US4186431A (en) * 1978-04-28 1980-01-29 Westinghouse Electric Corp. Linear light source
JPS6199258A (en) * 1984-10-18 1986-05-17 Matsushita Electronics Corp Reflex-type fluorescent lamp for optical equipment
US4797594A (en) * 1985-04-03 1989-01-10 Gte Laboratories Incorporated Reprographic aperture lamps having improved maintenance
US5003220A (en) * 1987-06-22 1991-03-26 Gte Products Corporation Integral lamp for tri-color picture element
US4868383A (en) * 1988-09-08 1989-09-19 Eastman Kodak Company Linear integrating cavity light source used for generating an intense beam of light
US4991070A (en) * 1989-07-12 1991-02-05 Herman Miller, Inc. Sleeve for a light element
US5116272A (en) * 1990-07-03 1992-05-26 Gte Products Corporation Method and apparatus for forming apertures in fluorescent lamps
US5142191A (en) * 1990-07-03 1992-08-25 Gte Products Corporation Aperture fluorescent lamp with press seal configuration
US5931565A (en) 1997-07-02 1999-08-03 Osram Sylvania Inc. Tubular lamp and reflector with two flexibly coupled sections
DE19844921A1 (en) * 1998-09-30 2000-04-13 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Flat lighting device has optical system that influences spatial light distribution of light to be coupled into plate to have at least one maximum in defined angular range wrt. optical axis
JP4322409B2 (en) 2000-07-14 2009-09-02 Ｎｅｃ液晶テクノロジー株式会社 Aperture type fluorescent lamp manufacturing method, surface illumination device manufacturing method, liquid crystal display device, and electronic apparatus
US20040114371A1 (en) * 2000-12-11 2004-06-17 Lea Michael C. Luminaire comprising an elongate light source and a back reflector
GB0030150D0 (en) 2000-12-11 2001-01-24 3M Innovative Properties Co Luminaire comprising an elongate light source and a back reflector
KR20060001423A (en) * 2004-06-30 2006-01-06 엘지.필립스 엘시디 주식회사 Back light unit of liquid crystal display device
US7370986B2 (en) * 2006-07-19 2008-05-13 Gaya Co., Ltd. Lamp body for a fluorescent lamp
US8215793B2 (en) * 2007-11-19 2012-07-10 Sharp Kabushiki Kaisha Backlight device
JP6214151B2 (en) * 2012-11-22 2017-10-18 株式会社エンプラス Lighting device
JP6354725B2 (en) * 2015-10-06 2018-07-11 ウシオ電機株式会社 Fluorescent light source device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2407379A (en) * 1941-12-22 1946-09-10 Morehouse Walter Bertram Combination bactericidal and illuminating lamp
US2436635A (en) * 1944-02-24 1948-02-24 Doane Products Corp Luminaire
GB603326A (en) * 1945-11-09 1948-06-14 British Thomson Houston Co Ltd Improved phosphor coating for fluorescent electric discharge lamps
DE838796C (en) * 1950-07-16 1952-05-12 Siemens Ag Gas discharge lamp
US2753444A (en) * 1952-09-04 1956-07-03 Garden City Plating & Mfg Co Fluorescent light fixture
US2724047A (en) * 1952-09-04 1955-11-15 Garden City Plating & Mfg Co Fluorescent light fixture
US2892956A (en) * 1953-05-28 1959-06-30 Gen Electric Electric discharge lamp and manufacture thereof
FR1085509A (en) * 1953-10-22 1955-02-03 Fluorescent tube with intensive light output
BE550603A (en) * 1955-08-26
US2906905A (en) * 1956-09-27 1959-09-29 Duro Test Corp Fluorescent lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311992A1 (en) * 1975-05-22 1976-12-17 Sun Chemical Corp TRANSPARENT WATER SLEEVE FOR ULTRAVIOLET RADIATION LAMPS
GB2149490A (en) * 1983-11-10 1985-06-12 Philips Nv U.V. Irradiation apparatus

Also Published As

Publication number Publication date
US3115309A (en) 1963-12-24
DE1818405U (en) 1960-09-22
BE592112A (en) 1960-10-17

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