ES2042959T3 - DEVICE FOR MONITORING THE FUNCTIONALITY OF AN INCANDESCENT LAMP. - Google Patents

DEVICE FOR MONITORING THE FUNCTIONALITY OF AN INCANDESCENT LAMP.

Info

Publication number
ES2042959T3
ES2042959T3 ES89123950T ES89123950T ES2042959T3 ES 2042959 T3 ES2042959 T3 ES 2042959T3 ES 89123950 T ES89123950 T ES 89123950T ES 89123950 T ES89123950 T ES 89123950T ES 2042959 T3 ES2042959 T3 ES 2042959T3
Authority
ES
Spain
Prior art keywords
incandescent lamp
circuit
switched
state
monitoring
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 - Lifetime
Application number
ES89123950T
Other languages
Spanish (es)
Inventor
Peter Dipl-Ing Schurmans
Heinz Dipl-Ing Laumen
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.)
Scheidt and Bachmann GmbH
Original Assignee
Scheidt and Bachmann 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 Scheidt and Bachmann GmbH filed Critical Scheidt and Bachmann GmbH
Application granted granted Critical
Publication of ES2042959T3 publication Critical patent/ES2042959T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Road Signs Or Road Markings (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

The invention relates to a device for monitoring the serviceability of an incandescent lamp (1) connected to a power source (2) by means of leads (3,4), it being possible to check the continuity of the circuit at low power in the switched-off state, without any visible effect on the incandescent lamp (1), and/or by confirming an energy flow in the switched-on state. In order to be able to differentiate between circuit continuity resulting from a short-circuit or shunt circuit and the continuity of the circuit when the incandescent lamp is operated during such a test, and to exclude the possibility of a positive test result despite a defective incandescent lamp, the ratio of the resistance of the arrangement when the incandescent lamp (1) is in the switched-off state to the resistance of the arrangement when the incandescent lamp (1) is in the switched-on state is determined and is compared with the ratio of the cold-hot resistance which is applicable to the respective incandescent lamp (1) to be monitored, taking into account the lead conditions, to output a report for the monitoring result. <IMAGE>
ES89123950T 1989-12-27 1989-12-27 DEVICE FOR MONITORING THE FUNCTIONALITY OF AN INCANDESCENT LAMP. Expired - Lifetime ES2042959T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89123950A EP0434859B1 (en) 1989-12-27 1989-12-27 Device for checking the correct working of an incandescent lamp

Publications (1)

Publication Number Publication Date
ES2042959T3 true ES2042959T3 (en) 1993-12-16

Family

ID=8202282

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89123950T Expired - Lifetime ES2042959T3 (en) 1989-12-27 1989-12-27 DEVICE FOR MONITORING THE FUNCTIONALITY OF AN INCANDESCENT LAMP.

Country Status (4)

Country Link
EP (1) EP0434859B1 (en)
AT (1) ATE91376T1 (en)
DE (1) DE58904882D1 (en)
ES (1) ES2042959T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ283430B6 (en) * 1992-09-25 1998-04-15 Siemens Aktiengesellschaft Process and apparatus for checking an incandescent lamp, particularly in non-lighting state
DE4233664C2 (en) * 1992-10-07 1996-06-27 Elektrofachgeschaeft Hans Jahn Halogen headlights for an alarm system
DE10140331C2 (en) * 2001-08-16 2003-11-06 Siemens Ag Traffic control light signals and method for monitoring the function of such a sign
GB0204836D0 (en) 2002-03-01 2002-04-17 Tapeswitch Ltd Lamp monitor and lamp
DE10256894A1 (en) * 2002-11-29 2004-06-09 Volkswagen Ag Diagnostics device for diagnostic tests on a motor vehicle's headlamp or rear lamp has a testing device for detecting a lamp's operating capacity evaluated by a device to determine likely failure
DE10332515A1 (en) * 2003-07-17 2005-02-10 Robert Bosch Gmbh Spectroscopic sensor lamp ageing data determination procedure for air conditioning plant carbon dioxide sensors measures electrical resistance for comparison with threshold
DE102005032637A1 (en) * 2005-07-13 2007-01-25 Dr.Ing.H.C. F. Porsche Ag Anti-theft alarm system for a motor vehicle
JP2007200610A (en) 2006-01-24 2007-08-09 Koito Mfg Co Ltd Lighting control device of vehicular lamp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3121311A1 (en) * 1981-05-29 1983-01-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method for determining the failure characteristic of a lamp circuit, and a circuit arrangement for carrying out the method
JPS61124227A (en) * 1984-11-19 1986-06-12 日産自動車株式会社 Discriminator for state of load
DE3601665A1 (en) * 1986-01-21 1987-07-23 Gerda Schmidt Method for determining the optimum operating life of at least one current-consuming light source, especially a fluorescent tube
IT1204239B (en) * 1986-05-22 1989-03-01 Zetron Istituto Zanussi Per La LAMP CONTROL DEVICE WITH GLASS BULBS AND RELATED PROCEDURE

Also Published As

Publication number Publication date
DE58904882D1 (en) 1993-08-12
EP0434859B1 (en) 1993-07-07
ATE91376T1 (en) 1993-07-15
EP0434859A1 (en) 1991-07-03

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