JPS55103542A - Exposure time display circuit of camera - Google Patents

Exposure time display circuit of camera

Info

Publication number
JPS55103542A
JPS55103542A JP1056779A JP1056779A JPS55103542A JP S55103542 A JPS55103542 A JP S55103542A JP 1056779 A JP1056779 A JP 1056779A JP 1056779 A JP1056779 A JP 1056779A JP S55103542 A JPS55103542 A JP S55103542A
Authority
JP
Japan
Prior art keywords
circuit
output
exposure time
supplied
camera
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
JP1056779A
Other languages
Japanese (ja)
Inventor
Hidekazu Tano
Koji Suzuki
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 JP1056779A priority Critical patent/JPS55103542A/en
Priority to US06/113,003 priority patent/US4306785A/en
Priority to GB8032779A priority patent/GB2059612B/en
Priority to GB8002465A priority patent/GB2045957B/en
Priority to FR8002208A priority patent/FR2448164A1/en
Priority to DE3003745A priority patent/DE3003745C2/en
Publication of JPS55103542A publication Critical patent/JPS55103542A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To achieve the miniaturization of the camera by selectively displaying auto and manual exposure time through the use of the same display element.
CONSTITUTION: A change-over circuit 16 which selectively supplies the output of an A/D converting and latching circuit 14 and the output of a manual exposure time setting circuit 8 to a decoder driver circuit 17 and a change-over circuit 10 which supplies the output of a counter 7 and the output of the circuit 8 selectively to a D/A converter 13 are provided. At the automatic exposure time controlling, the output of the circuit 14 is supplied to the circuit 17 and the output of the counter 7 is supplied to the converter 13. On the other hand, at the manual exposure time controlling, the output of the circuit 8 is supplied to the circuit 17 and the output of the circuit 8 is supplied to the converter 13. A display element 18 is driven by the output of the circuit 17.
COPYRIGHT: (C)1980,JPO&Japio
JP1056779A 1979-02-01 1979-02-01 Exposure time display circuit of camera Pending JPS55103542A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP1056779A JPS55103542A (en) 1979-02-01 1979-02-01 Exposure time display circuit of camera
US06/113,003 US4306785A (en) 1979-02-01 1980-01-17 Camera exposure time control circuit
GB8032779A GB2059612B (en) 1979-02-01 1980-01-24 Shutter speed control for a camera
GB8002465A GB2045957B (en) 1979-02-01 1980-01-24 Camera shutter speed control and display
FR8002208A FR2448164A1 (en) 1979-02-01 1980-02-01 LAYING TIME ADJUSTMENT CIRCUIT FOR A CAMERA
DE3003745A DE3003745C2 (en) 1979-02-01 1980-02-01 Exposure time control circuit for a camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1056779A JPS55103542A (en) 1979-02-01 1979-02-01 Exposure time display circuit of camera

Publications (1)

Publication Number Publication Date
JPS55103542A true JPS55103542A (en) 1980-08-07

Family

ID=11753816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1056779A Pending JPS55103542A (en) 1979-02-01 1979-02-01 Exposure time display circuit of camera

Country Status (1)

Country Link
JP (1) JPS55103542A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135628A (en) * 1973-04-26 1974-12-27
JPS5141522A (en) * 1974-10-04 1976-04-07 Canon Kk

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135628A (en) * 1973-04-26 1974-12-27
JPS5141522A (en) * 1974-10-04 1976-04-07 Canon Kk

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