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JPS5488121A - Control signal circuit of driving motor for automatic focus matching and automatic focus matching circuit - Google Patents

Control signal circuit of driving motor for automatic focus matching and automatic focus matching circuit

Info

Publication number
JPS5488121A
JPS5488121A JP15568777A JP15568777A JPS5488121A JP S5488121 A JPS5488121 A JP S5488121A JP 15568777 A JP15568777 A JP 15568777A JP 15568777 A JP15568777 A JP 15568777A JP S5488121 A JPS5488121 A JP S5488121A
Authority
JP
Japan
Prior art keywords
automatic focus
focus matching
circuit
control signal
driving motor
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
JP15568777A
Other languages
Japanese (ja)
Inventor
Morio Miyagawa
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 JP15568777A priority Critical patent/JPS5488121A/en
Priority to DE19782806868 priority patent/DE2806868C3/en
Priority to GB668478A priority patent/GB1576306A/en
Priority to GB668278A priority patent/GB1576305A/en
Publication of JPS5488121A publication Critical patent/JPS5488121A/en
Pending legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP15568777A 1977-02-19 1977-12-26 Control signal circuit of driving motor for automatic focus matching and automatic focus matching circuit Pending JPS5488121A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP15568777A JPS5488121A (en) 1977-12-26 1977-12-26 Control signal circuit of driving motor for automatic focus matching and automatic focus matching circuit
DE19782806868 DE2806868C3 (en) 1977-02-19 1978-02-17 Detector element for a device for focusing an imaging optical system
GB668478A GB1576306A (en) 1977-02-19 1978-02-20 Focus detecting circuit
GB668278A GB1576305A (en) 1977-02-19 1978-02-20 Focus detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15568777A JPS5488121A (en) 1977-12-26 1977-12-26 Control signal circuit of driving motor for automatic focus matching and automatic focus matching circuit

Publications (1)

Publication Number Publication Date
JPS5488121A true JPS5488121A (en) 1979-07-13

Family

ID=15611351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15568777A Pending JPS5488121A (en) 1977-02-19 1977-12-26 Control signal circuit of driving motor for automatic focus matching and automatic focus matching circuit

Country Status (1)

Country Link
JP (1) JPS5488121A (en)

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