JPS5445127A - Focus detector by photo sensor alley - Google Patents

Focus detector by photo sensor alley

Info

Publication number
JPS5445127A
JPS5445127A JP11186177A JP11186177A JPS5445127A JP S5445127 A JPS5445127 A JP S5445127A JP 11186177 A JP11186177 A JP 11186177A JP 11186177 A JP11186177 A JP 11186177A JP S5445127 A JPS5445127 A JP S5445127A
Authority
JP
Japan
Prior art keywords
alloy
light
frequency
sensor
circuit
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
JP11186177A
Other languages
English (en)
Inventor
Nobuyuki Asano
Yukichi Niwa
Mitsutoshi Owada
Ikuaki Yamagata
Shin Tsuda
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP11186177A priority Critical patent/JPS5445127A/ja
Priority to DE2801495A priority patent/DE2801495C3/de
Publication of JPS5445127A publication Critical patent/JPS5445127A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/305—Systems for automatic generation of focusing signals using parallactic triangle with a base line using a scanner

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Facsimile Scanning Arrangements (AREA)
JP11186177A 1977-09-17 1977-09-17 Focus detector by photo sensor alley Pending JPS5445127A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11186177A JPS5445127A (en) 1977-09-17 1977-09-17 Focus detector by photo sensor alley
DE2801495A DE2801495C3 (de) 1977-09-17 1978-01-13 Vorrichtung zur Erzeugung eines oder mehrerer Bildsignale, die eine Information über die Bildschärfe eines Bildes oder über die Lagedifferenz zwischen zwei Bildern enthalten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11186177A JPS5445127A (en) 1977-09-17 1977-09-17 Focus detector by photo sensor alley

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP58129243A Division JPS5951658A (ja) 1983-07-15 1983-07-15 画像走査装置

Publications (1)

Publication Number Publication Date
JPS5445127A true JPS5445127A (en) 1979-04-10

Family

ID=14571989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11186177A Pending JPS5445127A (en) 1977-09-17 1977-09-17 Focus detector by photo sensor alley

Country Status (2)

Country Link
JP (1) JPS5445127A (ja)
DE (1) DE2801495C3 (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55111921A (en) * 1979-02-14 1980-08-29 Asahi Optical Co Ltd Focus detector of camera
JPS57131178A (en) * 1981-02-06 1982-08-13 Asahi Optical Co Ltd Photoelectric converting device
JPS5817786A (ja) * 1981-07-23 1983-02-02 Canon Inc 撮像装置
JPS59206808A (ja) * 1983-05-11 1984-11-22 Asahi Optical Co Ltd 焦点検出装置
JPS6126016A (ja) * 1984-07-16 1986-02-05 Minolta Camera Co Ltd カメラの自動焦点検出装置
JPS63100432A (ja) * 1986-10-17 1988-05-02 Fuji Photo Film Co Ltd マイクロフィルムリ−ダプリンタのオ−トフオ−カス方法
JPS63100433A (ja) * 1986-10-17 1988-05-02 Fuji Photo Film Co Ltd マイクロフィルムリーダプリンタのオートフォーカス方法
US6259080B1 (en) 1998-03-18 2001-07-10 Olympus Optical Co. Ltd. Autofocus device for microscope

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3141182A1 (de) * 1980-10-16 1982-05-19 Canon K.K., Tokyo "scharfeinstellungs-ermittlungssystem"
US4429966A (en) * 1981-04-16 1984-02-07 Canon Kabushiki Kaisha Camera with photoelectric focus detecting device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH482172A (fr) * 1968-09-24 1969-11-30 Paillard Sa Télémètre à faisceau lumineux réfléchi
GB1293608A (en) * 1968-12-23 1972-10-18 Eastman Kodak Co Photographic camera with focusing device
US3886567A (en) * 1972-08-28 1975-05-27 Canon Kk Optical system position controlling device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55111921A (en) * 1979-02-14 1980-08-29 Asahi Optical Co Ltd Focus detector of camera
JPS57131178A (en) * 1981-02-06 1982-08-13 Asahi Optical Co Ltd Photoelectric converting device
JPS6351590B2 (ja) * 1981-02-06 1988-10-14 Asahi Optical Co Ltd
JPS5817786A (ja) * 1981-07-23 1983-02-02 Canon Inc 撮像装置
JPH0154908B2 (ja) * 1981-07-23 1989-11-21 Canon Kk
JPS59206808A (ja) * 1983-05-11 1984-11-22 Asahi Optical Co Ltd 焦点検出装置
JPH0463372B2 (ja) * 1983-05-11 1992-10-09 Asahi Optical Co Ltd
JPS6126016A (ja) * 1984-07-16 1986-02-05 Minolta Camera Co Ltd カメラの自動焦点検出装置
JPS63100432A (ja) * 1986-10-17 1988-05-02 Fuji Photo Film Co Ltd マイクロフィルムリ−ダプリンタのオ−トフオ−カス方法
JPS63100433A (ja) * 1986-10-17 1988-05-02 Fuji Photo Film Co Ltd マイクロフィルムリーダプリンタのオートフォーカス方法
US6259080B1 (en) 1998-03-18 2001-07-10 Olympus Optical Co. Ltd. Autofocus device for microscope

Also Published As

Publication number Publication date
DE2801495A1 (de) 1979-03-22
DE2801495B2 (de) 1980-10-16
DE2801495C3 (de) 1981-07-09

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