CA2246255A1 - Discharge lamp fitted with cold cathode - Google Patents

Discharge lamp fitted with cold cathode

Info

Publication number
CA2246255A1
CA2246255A1 CA002246255A CA2246255A CA2246255A1 CA 2246255 A1 CA2246255 A1 CA 2246255A1 CA 002246255 A CA002246255 A CA 002246255A CA 2246255 A CA2246255 A CA 2246255A CA 2246255 A1 CA2246255 A1 CA 2246255A1
Authority
CA
Canada
Prior art keywords
discharge lamp
cold cathode
discharge
electrodes
operating
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.)
Granted
Application number
CA002246255A
Other languages
French (fr)
Other versions
CA2246255C (en
Inventor
Frank Vollkommer
Lothar Hitzschke
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
Individual
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 claimed from DE19651552A external-priority patent/DE19651552A1/en
Application filed by Individual filed Critical Individual
Publication of CA2246255A1 publication Critical patent/CA2246255A1/en
Application granted granted Critical
Publication of CA2246255C publication Critical patent/CA2246255C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

Disclosed is a cold cathode (1) for use in discharge lamps, including in discharge lamps (6) operating with a dielectrically hindered discharge, comprising two electroconducive electrodes facing each other, between which a ferro-electric material is sandwiched. At least one of the electrodes presents one or more openings. When the cathode is operating, a voltage of quickly alternating polarity is applied to both electrodes, thereby freeing electrons on the surface of the ferro-electric material. The working voltage of the discharge lamp causes an acceleration of said electrons, which pass through the openings towards the anode (8) and are used for igniting the discharge lamp and keeping it in operating mode.
CA002246255A 1996-12-11 1997-12-10 Discharge lamp fitted with cold cathode Expired - Fee Related CA2246255C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19651552.1 1996-12-11
DE19651552A DE19651552A1 (en) 1996-12-11 1996-12-11 Cold cathode for discharge lamps, discharge lamp with this cold cathode and mode of operation for this discharge lamp
PCT/DE1997/002881 WO1998026447A1 (en) 1996-12-11 1997-12-10 Cold cathode for discharge lamps, discharge lamp fitted with said cold cathode, and principle of operation of said discharge lamp

Publications (2)

Publication Number Publication Date
CA2246255A1 true CA2246255A1 (en) 1998-06-18
CA2246255C CA2246255C (en) 2006-04-11

Family

ID=36178187

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002246255A Expired - Fee Related CA2246255C (en) 1996-12-11 1997-12-10 Discharge lamp fitted with cold cathode

Country Status (1)

Country Link
CA (1) CA2246255C (en)

Also Published As

Publication number Publication date
CA2246255C (en) 2006-04-11

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed