JPS55115029A - Display circuit of camera - Google Patents

Display circuit of camera

Info

Publication number
JPS55115029A
JPS55115029A JP2316479A JP2316479A JPS55115029A JP S55115029 A JPS55115029 A JP S55115029A JP 2316479 A JP2316479 A JP 2316479A JP 2316479 A JP2316479 A JP 2316479A JP S55115029 A JPS55115029 A JP S55115029A
Authority
JP
Japan
Prior art keywords
voltage
shutter speed
photographing
information
output
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
JP2316479A
Other languages
Japanese (ja)
Inventor
Masahiro Kitagawa
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP2316479A priority Critical patent/JPS55115029A/en
Publication of JPS55115029A publication Critical patent/JPS55115029A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To accurately display the shutter speed at the photographing beforehand, by comparing the voltage based on measurement information and photographing information, ASA sensitivity information voltage and shutter speed voltage.
CONSTITUTION: According to set aperture and ASA sensitivity, resistances VR101, VR102 are adjusted and the output voltage of the compression circuit based on the photographing information voltage and photometric information voltage is outputted from an operational amplifier OP101. When the shutter speed is within the automatic exposure limit determined by film sensitivities and the output voltage of the compression circuit becomes larger than the voltage of the resistance VR101 by the ASA set sensitivity, then only the output of the corresponding operational amplifiers OP201, OP202... becomes positive voltage and the specified LEDs P202, P203... are lighted by way of the transistor Q101, etc. which are turned ON by the high level output of the operational amplifier 102, whereby the shutter speed of the correct exposure is obtained and this is displayed. When the shutter speed is below the automatic exposure limit, the inadequacy of the shutter speed is warned by the flickering of the specified LED in a similar manner, thus the shutter speed at the photographing is accurately announced beforehand.
COPYRIGHT: (C)1980,JPO&Japio
JP2316479A 1979-02-28 1979-02-28 Display circuit of camera Pending JPS55115029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2316479A JPS55115029A (en) 1979-02-28 1979-02-28 Display circuit of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2316479A JPS55115029A (en) 1979-02-28 1979-02-28 Display circuit of camera

Publications (1)

Publication Number Publication Date
JPS55115029A true JPS55115029A (en) 1980-09-04

Family

ID=12102967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2316479A Pending JPS55115029A (en) 1979-02-28 1979-02-28 Display circuit of camera

Country Status (1)

Country Link
JP (1) JPS55115029A (en)

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