JPH03235932A - フラッシュの発光量制御装置 - Google Patents

フラッシュの発光量制御装置

Info

Publication number
JPH03235932A
JPH03235932A JP3184090A JP3184090A JPH03235932A JP H03235932 A JPH03235932 A JP H03235932A JP 3184090 A JP3184090 A JP 3184090A JP 3184090 A JP3184090 A JP 3184090A JP H03235932 A JPH03235932 A JP H03235932A
Authority
JP
Japan
Prior art keywords
gain
ttl
light
flash
threshold value
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
JP3184090A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0565857B2 (enrdf_load_stackoverflow
Inventor
Osamu Sato
修 佐藤
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP3184090A priority Critical patent/JPH03235932A/ja
Publication of JPH03235932A publication Critical patent/JPH03235932A/ja
Publication of JPH0565857B2 publication Critical patent/JPH0565857B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Stroboscope Apparatuses (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
JP3184090A 1990-02-13 1990-02-13 フラッシュの発光量制御装置 Granted JPH03235932A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3184090A JPH03235932A (ja) 1990-02-13 1990-02-13 フラッシュの発光量制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3184090A JPH03235932A (ja) 1990-02-13 1990-02-13 フラッシュの発光量制御装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP6247067A Division JP2663108B2 (ja) 1994-09-14 1994-09-14 フラッシュの発光量制御装置

Publications (2)

Publication Number Publication Date
JPH03235932A true JPH03235932A (ja) 1991-10-21
JPH0565857B2 JPH0565857B2 (enrdf_load_stackoverflow) 1993-09-20

Family

ID=12342254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3184090A Granted JPH03235932A (ja) 1990-02-13 1990-02-13 フラッシュの発光量制御装置

Country Status (1)

Country Link
JP (1) JPH03235932A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002124394A (ja) * 2000-10-18 2002-04-26 Canon Inc 閃光装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5839183A (ja) * 1981-08-31 1983-03-07 Canon Inc 固体撮像装置の閃光撮影方式
JPS6012534A (ja) * 1983-07-02 1985-01-22 Ricoh Co Ltd オ−トストロボにおける調光制御装置
JPS6219635U (enrdf_load_stackoverflow) * 1985-07-18 1987-02-05

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5839183A (ja) * 1981-08-31 1983-03-07 Canon Inc 固体撮像装置の閃光撮影方式
JPS6012534A (ja) * 1983-07-02 1985-01-22 Ricoh Co Ltd オ−トストロボにおける調光制御装置
JPS6219635U (enrdf_load_stackoverflow) * 1985-07-18 1987-02-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002124394A (ja) * 2000-10-18 2002-04-26 Canon Inc 閃光装置

Also Published As

Publication number Publication date
JPH0565857B2 (enrdf_load_stackoverflow) 1993-09-20

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