GB957958A - Improvements relating to electric discharge lamps - Google Patents

Improvements relating to electric discharge lamps

Info

Publication number
GB957958A
GB957958A GB5120/62A GB512062A GB957958A GB 957958 A GB957958 A GB 957958A GB 5120/62 A GB5120/62 A GB 5120/62A GB 512062 A GB512062 A GB 512062A GB 957958 A GB957958 A GB 957958A
Authority
GB
United Kingdom
Prior art keywords
lamp
discharge path
metal vapour
porous
vitreous material
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
GB5120/62A
Inventor
William John Scott
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
Priority to US3258630D priority Critical patent/US3258630A/en
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB5120/62A priority patent/GB957958A/en
Publication of GB957958A publication Critical patent/GB957958A/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
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/10—Shields, screens, or guides for influencing the discharge
    • H01J61/103—Shields, screens or guides arranged to extend the discharge path

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

957,958. Metal vapour lamps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 14, 1963 [Feb. 9, 1962], No. 5120/62. Heading H1D. In a discharge lamp having a sinuous discharge path, at least a part of each barrier 5 separating convolutions of the discharge path is formed from a porous ceramic or vitreous material which permits metal vapour to pass from one side of the barrier to the other: the emvelope is formed from two members, at least one of which is of vitreous material, sealed together to provide the sinuous discharge path. This arrangement allows equilization of the metal vapour pressure in the lamp, when it is used as a D.C. lamp or rectifier. The porous material may be an insert in the wall 5, or one of the members, e.g. 2, which forms part of the envelope, and which provides the internal barriers, may be formed in its entirety from a porous ceramic or vitreous material, the lamp being sealed by forming a non-porous layer on the outer surface of the member. The lamp may be coated internally with a luminescent material. Specification 950,475 is referred to.
GB5120/62A 1962-02-09 1962-02-09 Improvements relating to electric discharge lamps Expired GB957958A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US3258630D US3258630A (en) 1962-02-09 Electric discharge lamps
GB5120/62A GB957958A (en) 1962-02-09 1962-02-09 Improvements relating to electric discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5120/62A GB957958A (en) 1962-02-09 1962-02-09 Improvements relating to electric discharge lamps

Publications (1)

Publication Number Publication Date
GB957958A true GB957958A (en) 1964-05-13

Family

ID=9790087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5120/62A Expired GB957958A (en) 1962-02-09 1962-02-09 Improvements relating to electric discharge lamps

Country Status (2)

Country Link
US (1) US3258630A (en)
GB (1) GB957958A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2549419A1 (en) * 1975-11-04 1977-05-05 Walz Alfred Gas discharge lamp has hollow plasma toroid - with diaphragm separating discharge electrodes to force discharge over longer path
US4545774A (en) * 1982-12-02 1985-10-08 U.S. Philips Corporation Method of manufacturing a low-pressure mercury vapor discharge lamp and low-pressure mercury vapor discharge lamp manufactured by this method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173730A (en) * 1978-07-11 1979-11-06 Westinghouse Electric Corp. Compact fluorescent lamp unit having integral circuit means for DC operation
US4250645A (en) * 1979-05-16 1981-02-17 Stanley Electric Co., Ltd. Indicating device with flat fluorescent lamp
US5319282A (en) * 1991-12-30 1994-06-07 Winsor Mark D Planar fluorescent and electroluminescent lamp having one or more chambers
US5343116A (en) * 1992-12-14 1994-08-30 Winsor Mark D Planar fluorescent lamp having a serpentine chamber and sidewall electrodes
US5479328A (en) * 1994-01-05 1995-12-26 Interstate Electronics Corporation High-brightness, high-efficacy backlight
US5479069A (en) * 1994-02-18 1995-12-26 Winsor Corporation Planar fluorescent lamp with metal body and serpentine channel
US5777431A (en) * 1994-08-17 1998-07-07 Matsushita Electric Works R&D Lab. Substantially flat compact fluorescent lamp
US5717284A (en) * 1995-05-26 1998-02-10 Matsushita Electric R & D Laboratory Method of manufacturing substantially flat compact fluorescent lamp
US5645337A (en) * 1995-11-13 1997-07-08 Interstate Electronics Corporation Apertured fluorescent illumination device for backlighting an image plane
US5767618A (en) * 1996-02-09 1998-06-16 Matsushita Electric Works Research And Development Laboraties Inc. Flat compact fluorescent lamp with inter-channel discharge suppression
US5708324A (en) * 1996-03-18 1998-01-13 Matsushita Research And Development Laboratory Inc. Fluorescent lamp with different density phosphor coatings on the front panel and internal channels
US5811925A (en) * 1996-12-04 1998-09-22 Matsushita Electric Works Research And Development Laboratory, Inc. Integrally molded flat compact fluorescent lamp
US5914560A (en) * 1997-09-30 1999-06-22 Winsor Corporation Wide illumination range photoluminescent lamp
US5903096A (en) * 1997-09-30 1999-05-11 Winsor Corporation Photoluminescent lamp with angled pins on internal channel walls
US6100635A (en) * 1998-02-02 2000-08-08 Winsor Corporation Small, high efficiency planar fluorescent lamp
US6075320A (en) * 1998-02-02 2000-06-13 Winsor Corporation Wide illumination range fluorescent lamp
US6114809A (en) * 1998-02-02 2000-09-05 Winsor Corporation Planar fluorescent lamp with starter and heater circuit
US6091192A (en) * 1998-02-02 2000-07-18 Winsor Corporation Stress-relieved electroluminescent panel
US6127780A (en) * 1998-02-02 2000-10-03 Winsor Corporation Wide illumination range photoluminescent lamp
US6218776B1 (en) 1998-12-30 2001-04-17 Honeywell International Inc. Enhanced brightness of flat fluorescent lamp
US6762556B2 (en) 2001-02-27 2004-07-13 Winsor Corporation Open chamber photoluminescent lamp
KR100983589B1 (en) * 2003-10-22 2010-09-27 엘지디스플레이 주식회사 Liquid crystal display module
KR100648781B1 (en) * 2003-11-26 2006-11-23 삼성코닝 주식회사 Surface light source device and method for manufacturing the same
US20060290266A1 (en) * 2005-06-24 2006-12-28 Mathbright Technology Co., Ltd. Flat panel backlight unit
US20070290600A1 (en) * 2006-06-15 2007-12-20 Winsor Corporation Flat fluorescent lamp with large area uniform luminescence
DE102010033446B4 (en) * 2010-08-04 2012-03-22 Heraeus Noblelight Gmbh Mercury vapor lamp for homogeneous planar irradiation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1935423A (en) * 1929-01-28 1933-11-14 Gen Electric Electric discharge device
FR906947A (en) * 1939-01-11 1946-02-25 Gas and vapor electric discharge lamp
US3117248A (en) * 1961-05-18 1964-01-07 Gen Electric Low pressure mercury vapor discharge lamp for direct current operation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2549419A1 (en) * 1975-11-04 1977-05-05 Walz Alfred Gas discharge lamp has hollow plasma toroid - with diaphragm separating discharge electrodes to force discharge over longer path
US4545774A (en) * 1982-12-02 1985-10-08 U.S. Philips Corporation Method of manufacturing a low-pressure mercury vapor discharge lamp and low-pressure mercury vapor discharge lamp manufactured by this method

Also Published As

Publication number Publication date
US3258630A (en) 1966-06-28

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