JPS55163516A - Automatic aperture control display system of image pickup device - Google Patents

Automatic aperture control display system of image pickup device

Info

Publication number
JPS55163516A
JPS55163516A JP7098379A JP7098379A JPS55163516A JP S55163516 A JPS55163516 A JP S55163516A JP 7098379 A JP7098379 A JP 7098379A JP 7098379 A JP7098379 A JP 7098379A JP S55163516 A JPS55163516 A JP S55163516A
Authority
JP
Japan
Prior art keywords
automatic aperture
reference signal
image pickup
circuit
subject light
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
JP7098379A
Other languages
Japanese (ja)
Inventor
Masanobu Morishita
Yoshihiro Hamada
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7098379A priority Critical patent/JPS55163516A/en
Publication of JPS55163516A publication Critical patent/JPS55163516A/en
Pending legal-status Critical Current

Links

Landscapes

  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE: To make desired setting of automatic aperture easy by displaying the arrival of the subject light at the upper limit set level or more or lower limit set level or lower and making the same as a measure for the reference signal set time of an automatic aperture driving circuit.
CONSTITUTION: When the subject light through a lens 2 with automatic aperture mechanism is detected by an image pickup element 5, a control signal generating circut 6 applies the one of the control signals corresponding to the subject light to an automatic aperture mechanism driving circuit 7 and the other to +, - display lamp driving circuits 10, 11. When the regulator 8 which sets the reference signal is adjusted in one direction, the reference signal for comparison to be set in the circuit 7 changes and the quantity of light received in the element 4 through the aperture changes and therefore, the + or - display lamp 16 or 19 is lighted by way of the circuit 10 or 11 through the comparison with the specified upper or lower reference signal. If with this constitution the regulator 8 is operated with the putting-out of the display lamps 16, 19 as a measure, the desired setting of the automatic aperture may be done with ease.
COPYRIGHT: (C)1980,JPO&Japio
JP7098379A 1979-06-06 1979-06-06 Automatic aperture control display system of image pickup device Pending JPS55163516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7098379A JPS55163516A (en) 1979-06-06 1979-06-06 Automatic aperture control display system of image pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7098379A JPS55163516A (en) 1979-06-06 1979-06-06 Automatic aperture control display system of image pickup device

Publications (1)

Publication Number Publication Date
JPS55163516A true JPS55163516A (en) 1980-12-19

Family

ID=13447263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7098379A Pending JPS55163516A (en) 1979-06-06 1979-06-06 Automatic aperture control display system of image pickup device

Country Status (1)

Country Link
JP (1) JPS55163516A (en)

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