EP0221321A1 - Gasentladungslampe - Google Patents

Gasentladungslampe Download PDF

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Publication number
EP0221321A1
EP0221321A1 EP86113154A EP86113154A EP0221321A1 EP 0221321 A1 EP0221321 A1 EP 0221321A1 EP 86113154 A EP86113154 A EP 86113154A EP 86113154 A EP86113154 A EP 86113154A EP 0221321 A1 EP0221321 A1 EP 0221321A1
Authority
EP
European Patent Office
Prior art keywords
light
gas discharge
discharge lamp
glass tube
tube
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Withdrawn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
EP86113154A
Other languages
German (de)
English (en)
French (fr)
Inventor
Eugen Achter
Peter Dipl.-Ing. Strzelczyk
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.)
Heimann GmbH
Original Assignee
Heimann GmbH
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 Heimann GmbH filed Critical Heimann GmbH
Publication of EP0221321A1 publication Critical patent/EP0221321A1/de
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to a gas discharge lamp with a translucent glass tube in which two electrodes are melted, in which the glass tube is mirrored over part of its circumference in the region of the discharge gap.
  • Gas discharge lamps of this type are used in particular as flash tubes.
  • Flash tubes are used, among other things, to generate light pulses for a light detector that triggers electrical switching processes, for example.
  • the light from the flash tube can be directed to the light detector via a fiber optic.
  • the flash tube should only emit light in the area opposite the input side of the glass fiber optics so that as much light as possible falls on this input side.
  • the flash tube can be designed as a short-arc flash tube with a relatively small distance between the two electrodes and can be arranged in the focal point of a reflector.
  • this arrangement requires laborious adjustment work.
  • the object of the invention is to design a gas discharge lamp of the type mentioned at the outset, that is to say with a translucent glass tube, in such a way that the light is concentrated without additional external components.
  • this object is achieved in that the glass tube is expanded in the region of the discharge path and the mirroring is applied in the form of a dome in the expanded region.
  • the gas discharge lamp according to the invention is essentially designed as a glass tube, in which light bundling is nevertheless achieved in that the glass tube is expanded in the region of the discharge path and the mirroring is applied in a spherical shape in this extended region .
  • the glass tube 1 of a flash tube is shown, in which two electrodes 2, 3 are arranged.
  • the glass tube 1 is expanded in the area of the discharge path.
  • a mirroring 4 is applied in the enlarged area 1 a, which bundles the emerging light 5, for example, on the input side of a glass fiber optic.
  • the mirroring 4 is dome-shaped in accordance with the shape of the enlarged region 1a.
  • the mirroring can be formed by a layer of shiny gold applied to the glass surface.
  • a quartz rod can be melted into the glass tube 1 on the light exit side. With this quartz rod, a conventional, flexible light guide can be easily contacted.
  • the mirroring Due to the mirroring there is an increase in the light output compared to a non-mirrored flash tube the exit area of 30% and more is reached. A complicated adjustment of the flash tube in a reflector is not necessary.
  • the mirroring can be provided with a matt black, heat-resistant protective coating in order to ensure better heat radiation. Such a layer also protects the reflective coating on the outside of the glass tube 1 against mechanical damage, such as scratches.
  • the invention is not limited to elongated tubes, but can also be applied to other tube shapes, such as ring tubes, U tubes and the like.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
EP86113154A 1985-10-08 1986-09-24 Gasentladungslampe Withdrawn EP0221321A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3535921 1985-10-08
DE3535921 1985-10-08

Publications (1)

Publication Number Publication Date
EP0221321A1 true EP0221321A1 (de) 1987-05-13

Family

ID=6283081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113154A Withdrawn EP0221321A1 (de) 1985-10-08 1986-09-24 Gasentladungslampe

Country Status (2)

Country Link
EP (1) EP0221321A1 (enrdf_load_stackoverflow)
JP (1) JPS6262757U (enrdf_load_stackoverflow)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE892035C (de) * 1953-08-20 Siemens-Schuckertwerke AktiengeseHschaft, Berlin und Erlangen Stabstrahl'er
US2775718A (en) * 1954-03-04 1956-12-25 Dubilier William Electronic speed light
US3993922A (en) * 1976-01-05 1976-11-23 Gte Sylvania Incorporated Arc discharge lamp with integral trigger electrode
DE3211292A1 (de) * 1981-03-30 1982-10-14 Fuji Photo Optical Co., Ltd., Omiya, Saitama Elektrische entladungsroehre und elektronischer lichtsender unter verwendung dieser entladungsroehre

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE892035C (de) * 1953-08-20 Siemens-Schuckertwerke AktiengeseHschaft, Berlin und Erlangen Stabstrahl'er
US2775718A (en) * 1954-03-04 1956-12-25 Dubilier William Electronic speed light
US3993922A (en) * 1976-01-05 1976-11-23 Gte Sylvania Incorporated Arc discharge lamp with integral trigger electrode
DE3211292A1 (de) * 1981-03-30 1982-10-14 Fuji Photo Optical Co., Ltd., Omiya, Saitama Elektrische entladungsroehre und elektronischer lichtsender unter verwendung dieser entladungsroehre

Also Published As

Publication number Publication date
JPS6262757U (enrdf_load_stackoverflow) 1987-04-18

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Legal Events

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

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Designated state(s): CH DE FR GB IT LI

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Effective date: 19870604

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Effective date: 19880524

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18W Application withdrawn

Withdrawal date: 19880818

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STRZELCZYK, PETER, DIPL.-ING.

Inventor name: ACHTER, EUGEN