JPS55127527A - Automatic focus detector - Google Patents

Automatic focus detector

Info

Publication number
JPS55127527A
JPS55127527A JP3594779A JP3594779A JPS55127527A JP S55127527 A JPS55127527 A JP S55127527A JP 3594779 A JP3594779 A JP 3594779A JP 3594779 A JP3594779 A JP 3594779A JP S55127527 A JPS55127527 A JP S55127527A
Authority
JP
Japan
Prior art keywords
image sensor
optical system
way
mirror
converging optical
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.)
Granted
Application number
JP3594779A
Other languages
Japanese (ja)
Other versions
JPS627524B2 (en
Inventor
Tsutomu Hosono
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.)
Fujinon Corp
Original Assignee
Fuji Photo 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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP3594779A priority Critical patent/JPS55127527A/en
Publication of JPS55127527A publication Critical patent/JPS55127527A/en
Publication of JPS627524B2 publication Critical patent/JPS627524B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE: To achieve higher performance by using a one-way converging optical system and a self-scanning type image sensor.
CONSTITUTION: A one-way converging optical system consisting of an imaging lens 10 and lenticular lens 11 and a self-scanning type image sensor 12 are disposed between an optical path changing mirror 9 and control circuit 13. As a result of this, the light from the subject enters the one-way converging optical system through a photographing lens 1, reflecting mirror 2, auxiliary mirror 3, field stop 8 and optical path changing mirror 9, thereby forming the image of vertical fringes formed on one direction only on an image sensor 12. The scanning signal from the image sensor 12 is processed by the control circuit 13 and the photographing lens 1 is driven by way of a servo motor 14. Hence, the patterns of the subject are difficult to receive influence and the change in the signal by camera blur may be prevented as well.
COPYRIGHT: (C)1980,JPO&Japio
JP3594779A 1979-03-27 1979-03-27 Automatic focus detector Granted JPS55127527A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3594779A JPS55127527A (en) 1979-03-27 1979-03-27 Automatic focus detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3594779A JPS55127527A (en) 1979-03-27 1979-03-27 Automatic focus detector

Publications (2)

Publication Number Publication Date
JPS55127527A true JPS55127527A (en) 1980-10-02
JPS627524B2 JPS627524B2 (en) 1987-02-18

Family

ID=12456176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3594779A Granted JPS55127527A (en) 1979-03-27 1979-03-27 Automatic focus detector

Country Status (1)

Country Link
JP (1) JPS55127527A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09197251A (en) * 1996-01-23 1997-07-31 Olympus Optical Co Ltd Automatic focusing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843931A (en) * 1971-10-08 1973-06-25
JPS4958826A (en) * 1972-10-04 1974-06-07
JPS5295221A (en) * 1976-02-04 1977-08-10 Minolta Camera Co Ltd Detector for focusing
JPS52130338A (en) * 1976-04-26 1977-11-01 Fujitsu Ltd Focusing point detectig means

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843931A (en) * 1971-10-08 1973-06-25
JPS4958826A (en) * 1972-10-04 1974-06-07
JPS5295221A (en) * 1976-02-04 1977-08-10 Minolta Camera Co Ltd Detector for focusing
JPS52130338A (en) * 1976-04-26 1977-11-01 Fujitsu Ltd Focusing point detectig means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09197251A (en) * 1996-01-23 1997-07-31 Olympus Optical Co Ltd Automatic focusing device

Also Published As

Publication number Publication date
JPS627524B2 (en) 1987-02-18

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