JPS5387217A - Focusing device - Google Patents

Focusing device

Info

Publication number
JPS5387217A
JPS5387217A JP210377A JP210377A JPS5387217A JP S5387217 A JPS5387217 A JP S5387217A JP 210377 A JP210377 A JP 210377A JP 210377 A JP210377 A JP 210377A JP S5387217 A JPS5387217 A JP S5387217A
Authority
JP
Japan
Prior art keywords
focusing
focusing device
signal
calculating
film
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
JP210377A
Other languages
Japanese (ja)
Inventor
Yoshio Yuasa
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP210377A priority Critical patent/JPS5387217A/en
Publication of JPS5387217A publication Critical patent/JPS5387217A/en
Pending legal-status Critical Current

Links

Landscapes

  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE: To obtain a high accurate focusing by simple means by calculating the position information of a movable unit of the focusing lens system regarding the film to be focused based on the position signal and focusing characteristic signal.
COPYRIGHT: (C)1978,JPO&Japio
JP210377A 1977-01-11 1977-01-11 Focusing device Pending JPS5387217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP210377A JPS5387217A (en) 1977-01-11 1977-01-11 Focusing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP210377A JPS5387217A (en) 1977-01-11 1977-01-11 Focusing device

Publications (1)

Publication Number Publication Date
JPS5387217A true JPS5387217A (en) 1978-08-01

Family

ID=11519998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP210377A Pending JPS5387217A (en) 1977-01-11 1977-01-11 Focusing device

Country Status (1)

Country Link
JP (1) JPS5387217A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100415A (en) * 1980-12-16 1982-06-22 Fuji Photo Film Co Ltd Detecting method for lens position of photographing device
JPS57114125A (en) * 1980-12-30 1982-07-15 Dainippon Screen Mfg Co Ltd Automatic focusing device of camera
JPS57167021A (en) * 1981-04-07 1982-10-14 Fuji Photo Film Co Ltd Print density compensation device for enlarger
JPS57192929A (en) * 1981-05-25 1982-11-27 Hitachi Ltd Projector provided with automatic focusing function
JPS57195223A (en) * 1981-05-27 1982-11-30 Fuji Photo Optical Co Ltd Focus controlling device for camera
JPS5826047U (en) * 1981-08-11 1983-02-19 株式会社東芝 Optical system drive device for copying machines, etc.
JPS58211111A (en) * 1982-06-02 1983-12-08 Koshina:Kk Focusing device
JPS6161538U (en) * 1984-09-27 1986-04-25
JPS63191338U (en) * 1988-02-17 1988-12-09
JP2015121645A (en) * 2013-12-24 2015-07-02 セイコーエプソン株式会社 Imaging device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100415A (en) * 1980-12-16 1982-06-22 Fuji Photo Film Co Ltd Detecting method for lens position of photographing device
JPS57114125A (en) * 1980-12-30 1982-07-15 Dainippon Screen Mfg Co Ltd Automatic focusing device of camera
JPS57167021A (en) * 1981-04-07 1982-10-14 Fuji Photo Film Co Ltd Print density compensation device for enlarger
JPS57192929A (en) * 1981-05-25 1982-11-27 Hitachi Ltd Projector provided with automatic focusing function
JPS57195223A (en) * 1981-05-27 1982-11-30 Fuji Photo Optical Co Ltd Focus controlling device for camera
JPS5826047U (en) * 1981-08-11 1983-02-19 株式会社東芝 Optical system drive device for copying machines, etc.
JPS58211111A (en) * 1982-06-02 1983-12-08 Koshina:Kk Focusing device
JPS6161538U (en) * 1984-09-27 1986-04-25
JPS63191338U (en) * 1988-02-17 1988-12-09
JP2015121645A (en) * 2013-12-24 2015-07-02 セイコーエプソン株式会社 Imaging device

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