JPS522195A - Lamp breakage detector - Google Patents

Lamp breakage detector

Info

Publication number
JPS522195A
JPS522195A JP50077765A JP7776575A JPS522195A JP S522195 A JPS522195 A JP S522195A JP 50077765 A JP50077765 A JP 50077765A JP 7776575 A JP7776575 A JP 7776575A JP S522195 A JPS522195 A JP S522195A
Authority
JP
Japan
Prior art keywords
breakage detector
lamp
lamp breakage
detector
ununiformity
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.)
Pending
Application number
JP50077765A
Other languages
Japanese (ja)
Inventor
Kosaburo Iwamoto
Koichi Yomogihara
Hitoshi Kumasaka
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.)
Nippon Signal Co Ltd
Original Assignee
Nippon Signal Co 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
Application filed by Nippon Signal Co Ltd filed Critical Nippon Signal Co Ltd
Priority to JP50077765A priority Critical patent/JPS522195A/en
Publication of JPS522195A publication Critical patent/JPS522195A/en
Pending legal-status Critical Current

Links

Landscapes

  • Traffic Control Systems (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

PURPOSE: To provide a detector which can detect breakage of lamp coil regardless of light pattern of lamp without error by aging change and ununiformity.
COPYRIGHT: (C)1977,JPO&Japio
JP50077765A 1975-06-23 1975-06-23 Lamp breakage detector Pending JPS522195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50077765A JPS522195A (en) 1975-06-23 1975-06-23 Lamp breakage detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50077765A JPS522195A (en) 1975-06-23 1975-06-23 Lamp breakage detector

Publications (1)

Publication Number Publication Date
JPS522195A true JPS522195A (en) 1977-01-08

Family

ID=13643022

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50077765A Pending JPS522195A (en) 1975-06-23 1975-06-23 Lamp breakage detector

Country Status (1)

Country Link
JP (1) JPS522195A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143577A (en) * 1974-10-14 1976-04-14 Bando Chemical Ind KONBEYABERUTOSOCHI
JPS52126915U (en) * 1976-03-16 1977-09-27
US5442257A (en) * 1992-09-21 1995-08-15 Nissan Motor Co., Ltd. System for and method of lighting discharge lamp having failure detection of discharge lamp, external wiring and lighting circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143577A (en) * 1974-10-14 1976-04-14 Bando Chemical Ind KONBEYABERUTOSOCHI
JPS522195B2 (en) * 1974-10-14 1977-01-20
JPS52126915U (en) * 1976-03-16 1977-09-27
US5442257A (en) * 1992-09-21 1995-08-15 Nissan Motor Co., Ltd. System for and method of lighting discharge lamp having failure detection of discharge lamp, external wiring and lighting circuit

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