JPS58154972A - ビデオカメラの絞り値検出装置 - Google Patents

ビデオカメラの絞り値検出装置

Info

Publication number
JPS58154972A
JPS58154972A JP57036367A JP3636782A JPS58154972A JP S58154972 A JPS58154972 A JP S58154972A JP 57036367 A JP57036367 A JP 57036367A JP 3636782 A JP3636782 A JP 3636782A JP S58154972 A JPS58154972 A JP S58154972A
Authority
JP
Japan
Prior art keywords
aperture
voltage
video camera
detection device
aperture 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
JP57036367A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6338916B2 (enExample
Inventor
Kentaro Hanma
謙太郎 半間
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57036367A priority Critical patent/JPS58154972A/ja
Publication of JPS58154972A publication Critical patent/JPS58154972A/ja
Publication of JPS6338916B2 publication Critical patent/JPS6338916B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Exposure Control For Cameras (AREA)
  • Focusing (AREA)
  • Diaphragms For Cameras (AREA)
  • Automatic Focus Adjustment (AREA)
JP57036367A 1982-03-10 1982-03-10 ビデオカメラの絞り値検出装置 Granted JPS58154972A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57036367A JPS58154972A (ja) 1982-03-10 1982-03-10 ビデオカメラの絞り値検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57036367A JPS58154972A (ja) 1982-03-10 1982-03-10 ビデオカメラの絞り値検出装置

Publications (2)

Publication Number Publication Date
JPS58154972A true JPS58154972A (ja) 1983-09-14
JPS6338916B2 JPS6338916B2 (enExample) 1988-08-02

Family

ID=12467859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57036367A Granted JPS58154972A (ja) 1982-03-10 1982-03-10 ビデオカメラの絞り値検出装置

Country Status (1)

Country Link
JP (1) JPS58154972A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113358329A (zh) * 2021-04-20 2021-09-07 浙江大华技术股份有限公司 光圈检测设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5348572U (enExample) * 1976-09-29 1978-04-24
JPS5623076A (en) * 1979-07-31 1981-03-04 Tamuron:Kk Manual stop-down remote control device for television camera
JPS5651729A (en) * 1979-10-04 1981-05-09 Nippon Seimitsu Kogyo Kk Diaphragm device of servo system
JPS5670535A (en) * 1979-11-13 1981-06-12 Nippon Seimitsu Kogyo Kk Electronic/manual aperture control servo circuit using a moving magnet type servometer as driving source
JPS57200017A (en) * 1981-06-03 1982-12-08 Sony Corp Aperture locking device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5348572U (enExample) * 1976-09-29 1978-04-24
JPS5623076A (en) * 1979-07-31 1981-03-04 Tamuron:Kk Manual stop-down remote control device for television camera
JPS5651729A (en) * 1979-10-04 1981-05-09 Nippon Seimitsu Kogyo Kk Diaphragm device of servo system
JPS5670535A (en) * 1979-11-13 1981-06-12 Nippon Seimitsu Kogyo Kk Electronic/manual aperture control servo circuit using a moving magnet type servometer as driving source
JPS57200017A (en) * 1981-06-03 1982-12-08 Sony Corp Aperture locking device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113358329A (zh) * 2021-04-20 2021-09-07 浙江大华技术股份有限公司 光圈检测设备

Also Published As

Publication number Publication date
JPS6338916B2 (enExample) 1988-08-02

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