JPS5687024A - Programmed exposure control device - Google Patents

Programmed exposure control device

Info

Publication number
JPS5687024A
JPS5687024A JP16353979A JP16353979A JPS5687024A JP S5687024 A JPS5687024 A JP S5687024A JP 16353979 A JP16353979 A JP 16353979A JP 16353979 A JP16353979 A JP 16353979A JP S5687024 A JPS5687024 A JP S5687024A
Authority
JP
Japan
Prior art keywords
circuit
aperture
luminance information
signal
shutter
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
JP16353979A
Other languages
Japanese (ja)
Inventor
Kazuo Shiozawa
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP16353979A priority Critical patent/JPS5687024A/en
Priority to GB8026319A priority patent/GB2059084B/en
Priority to DE19803031198 priority patent/DE3031198A1/en
Publication of JPS5687024A publication Critical patent/JPS5687024A/en
Priority to US06/550,052 priority patent/US4456361A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE: To make aperture setting and setting of exposure conditions rapid by ranking subject luminance information as digital luminance information by a decoder circuit, determining aperture according to these ranks and simultaneously determining the shutter second time.
CONSTITUTION: When a photometric circuit PA operates and a main control circuit CC enters the state on operation of release operation, the main control circuit CC outputs the start signal to an A/D conversion circuit ADC, a decoder circuit DEC and a shutter control circuit SC, respectively, thence the A/D conversion circuit ADC digitally converts the light value which is being inputted from an operational amplifier OP3, and outputs the digital luminance information to the decoder circuit DEC. The decoder circuit DEC ranks the digital luminance information and outputs the aperture signal so an aperture determination circuit AC, the shutter second time signal to the shutter control circuit SC and the display signal similar to the aperture signal to the display control circut DC.
COPYRIGHT: (C)1981,JPO&Japio
JP16353979A 1979-08-18 1979-12-18 Programmed exposure control device Pending JPS5687024A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP16353979A JPS5687024A (en) 1979-12-18 1979-12-18 Programmed exposure control device
GB8026319A GB2059084B (en) 1979-08-18 1980-08-13 Program type exposure controlling device
DE19803031198 DE3031198A1 (en) 1979-08-18 1980-08-18 PROGRAMMABLE EXPOSURE CONTROL DEVICE
US06/550,052 US4456361A (en) 1979-08-18 1983-11-07 Program type exposure controlling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16353979A JPS5687024A (en) 1979-12-18 1979-12-18 Programmed exposure control device

Publications (1)

Publication Number Publication Date
JPS5687024A true JPS5687024A (en) 1981-07-15

Family

ID=15775800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16353979A Pending JPS5687024A (en) 1979-08-18 1979-12-18 Programmed exposure control device

Country Status (1)

Country Link
JP (1) JPS5687024A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63299462A (en) * 1987-05-29 1988-12-06 Hitachi Ltd Automatic exposure controller for video camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63299462A (en) * 1987-05-29 1988-12-06 Hitachi Ltd Automatic exposure controller for video camera

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