JPS5848994B2 - ランプ照度制御装置 - Google Patents

ランプ照度制御装置

Info

Publication number
JPS5848994B2
JPS5848994B2 JP50014991A JP1499175A JPS5848994B2 JP S5848994 B2 JPS5848994 B2 JP S5848994B2 JP 50014991 A JP50014991 A JP 50014991A JP 1499175 A JP1499175 A JP 1499175A JP S5848994 B2 JPS5848994 B2 JP S5848994B2
Authority
JP
Japan
Prior art keywords
lamp
voltage
control circuit
transistor
capacitor
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
Application number
JP50014991A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5190180A (enrdf_load_stackoverflow
Inventor
哲司 田近
雅人 石田
久 酒巻
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP50014991A priority Critical patent/JPS5848994B2/ja
Publication of JPS5190180A publication Critical patent/JPS5190180A/ja
Publication of JPS5848994B2 publication Critical patent/JPS5848994B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
JP50014991A 1975-02-05 1975-02-05 ランプ照度制御装置 Expired JPS5848994B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50014991A JPS5848994B2 (ja) 1975-02-05 1975-02-05 ランプ照度制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50014991A JPS5848994B2 (ja) 1975-02-05 1975-02-05 ランプ照度制御装置

Publications (2)

Publication Number Publication Date
JPS5190180A JPS5190180A (enrdf_load_stackoverflow) 1976-08-07
JPS5848994B2 true JPS5848994B2 (ja) 1983-11-01

Family

ID=11876398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50014991A Expired JPS5848994B2 (ja) 1975-02-05 1975-02-05 ランプ照度制御装置

Country Status (1)

Country Link
JP (1) JPS5848994B2 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559544A (en) * 1978-07-06 1980-01-23 Canon Inc Exposure control device
JPS559545A (en) * 1978-07-06 1980-01-23 Canon Inc Exposure control device
JPS62178229A (ja) * 1986-01-31 1987-08-05 Kyocera Corp 複写機用光源の調光回路

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4734240U (enrdf_load_stackoverflow) * 1971-05-08 1972-12-16

Also Published As

Publication number Publication date
JPS5190180A (enrdf_load_stackoverflow) 1976-08-07

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