EP0077077A3 - Panel-shaped low-pressure mercury vapour discharge lamp - Google Patents

Panel-shaped low-pressure mercury vapour discharge lamp Download PDF

Info

Publication number
EP0077077A3
EP0077077A3 EP82109470A EP82109470A EP0077077A3 EP 0077077 A3 EP0077077 A3 EP 0077077A3 EP 82109470 A EP82109470 A EP 82109470A EP 82109470 A EP82109470 A EP 82109470A EP 0077077 A3 EP0077077 A3 EP 0077077A3
Authority
EP
European Patent Office
Prior art keywords
end plate
discharge lamp
panel
bowl
pressure mercury
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.)
Withdrawn
Application number
EP82109470A
Other languages
German (de)
French (fr)
Other versions
EP0077077A2 (en
Inventor
Fritz Dr. Dipl.-Phys. Schipp
Gerhard Dr. Steeger
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0077077A2 publication Critical patent/EP0077077A2/en
Publication of EP0077077A3 publication Critical patent/EP0077077A3/en
Withdrawn legal-status Critical Current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

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

Es liegt eine kompakte flächenförmige Quecksilber­ dampf-Niederdruckentladungslampe vor, die sich für die gerichtete Beleuchtung im Wohn- und Arbeitsbereich eig­ net. Das Entladungsgefäss setzt sich aus einem schalen­ förmigen Oberteil (1) mit einem zentralen Sockel (7) und einer ebenen Abschlussplatte (2) zusammen, wobei beide Teile aus Pressglas gefertigt sind. Im Oberteil (1) ist durch zwei oder mehrere ringförmige Trennwände (4a) sowie einer geraden Trennwand (4b) ein gewundener Entla­ dungsweg (9) gebildet, der in einer Ebene senkrecht zur Ausstrahlungsrichtung verläuft. Durch eine entsprechen­ de Formgebung und Ausgestaltung der beiden Gefäss­ teile (1, 2) wird erreicht, dass mindestens 80% des er­ zeugten Lichtstromes über die ebene Abschlussplatte (2) abgegeben wird. In einer vorteilhaften Ausführung ist das schalenförmige Oberteil (1) auf seiner Innenseite (10) mit einer relativ dicken Leuchtstoffbeschichtung (11) (mehr als 6 mg/cm³) versehen. Bei geringerer Schicht­ dicke des Leuchtstoffes Ist eine zusätzliche Reflexions­ beschichtung aufgebracht. Die Abschlussplatte (2) weist auf ihrer der Entladung zugewandten Seite eine Schutz­ schicht, ggf. in Verbindung mit einer dünnen Leuchtstoff­ beschichtung (1 bis 3 mg/cm²), auf. There is a compact sheet of mercury vapor low pressure discharge lamp, which is suitable for the Directional lighting in the living and working area net. The discharge vessel consists of a bowl shaped top (1) with a central base (7) and a flat end plate (2) together, both Parts are made of pressed glass. In the upper part (1) is through two or more annular partitions (4a) and a straight partition (4b) a winding outlet tion path (9) formed in a plane perpendicular to Beam direction. By a match de Shape and design of the two vessels parts (1, 2) is achieved that at least 80% of the he generated luminous flux over the flat end plate (2) is delivered. In an advantageous embodiment, this is bowl-shaped upper part (1) on its inside (10) with a relatively thick phosphor coating (11) (more than 6 mg / cm³). With a lower shift thickness of the phosphor is an additional reflection coating applied. The end plate (2) has protection on its side facing the discharge layer, possibly in conjunction with a thin phosphor coating (1 to 3 mg / cm²).

EP82109470A 1981-10-14 1982-10-13 Panel-shaped low-pressure mercury vapour discharge lamp Withdrawn EP0077077A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3140839 1981-10-14
DE19813140839 DE3140839A1 (en) 1981-10-14 1981-10-14 FLAT-SHAPED MERCURY VAPOR LOW-PRESSURE DISCHARGE LAMP

Publications (2)

Publication Number Publication Date
EP0077077A2 EP0077077A2 (en) 1983-04-20
EP0077077A3 true EP0077077A3 (en) 1983-11-16

Family

ID=6144108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109470A Withdrawn EP0077077A3 (en) 1981-10-14 1982-10-13 Panel-shaped low-pressure mercury vapour discharge lamp

Country Status (3)

Country Link
EP (1) EP0077077A3 (en)
JP (1) JPS5875759A (en)
DE (1) DE3140839A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0650621B2 (en) * 1987-03-20 1994-06-29 三洋電機株式会社 Flat fluorescent lamp
CA1292768C (en) * 1987-03-20 1991-12-03 Shunichi Kishimoto Flat fluorescent lamp for liquid crystal display
JPH01126050U (en) * 1988-02-19 1989-08-29
JPH02260366A (en) * 1989-03-31 1990-10-23 Toshiba Lighting & Technol Corp Fluorescent lamp
KR920702541A (en) * 1990-08-03 1992-09-04 비. 린 쥬드 Thin, flat, flat glass envelope
US5233262A (en) * 1992-05-15 1993-08-03 Judd B. Lynn Flat form gas discharge lamp with optical reflecting means
DE4232743A1 (en) * 1992-09-30 1994-03-31 Wolfgang Dipl Ing Topf Energy-saving design for light source - has two or more oblong layers with recesses in mating surfaces that form internal gas discharge space
DE19600531A1 (en) * 1995-12-29 1997-07-03 Holzer Walter Fluorescent lamp with replaceable light part
DE102012203419A1 (en) * 2011-07-29 2013-01-31 Osram Ag Phosphor and fluorescent lamp containing the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987640A (en) * 1959-11-24 1961-06-06 Gen Electric Electric lamp envelope
FR1458494A (en) * 1964-09-25 1966-03-04 Dom Techniczno Handlowy Electric discharge lamp
US3243630A (en) * 1962-01-02 1966-03-29 Gen Electric Fluorescent panel lamp faceplate with opaque striping
US3611009A (en) * 1969-06-17 1971-10-05 William J Mcneil Fluorescent light fixture
US3646383A (en) * 1970-01-09 1972-02-29 Gen Electric Fluorescent panel lamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987640A (en) * 1959-11-24 1961-06-06 Gen Electric Electric lamp envelope
US3243630A (en) * 1962-01-02 1966-03-29 Gen Electric Fluorescent panel lamp faceplate with opaque striping
FR1458494A (en) * 1964-09-25 1966-03-04 Dom Techniczno Handlowy Electric discharge lamp
US3611009A (en) * 1969-06-17 1971-10-05 William J Mcneil Fluorescent light fixture
US3646383A (en) * 1970-01-09 1972-02-29 Gen Electric Fluorescent panel lamp

Also Published As

Publication number Publication date
EP0077077A2 (en) 1983-04-20
DE3140839A1 (en) 1983-04-21
JPS5875759A (en) 1983-05-07

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE FR GB IT

PUAL Search report despatched

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AK Designated contracting states

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17P Request for examination filed

Effective date: 19840410

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19851122

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STEEGER, GERHARD, DR.

Inventor name: SCHIPP, FRITZ, DR. DIPL.-PHYS.