FR2057839A5 - - Google Patents

Info

Publication number
FR2057839A5
FR2057839A5 FR7028045A FR7028045A FR2057839A5 FR 2057839 A5 FR2057839 A5 FR 2057839A5 FR 7028045 A FR7028045 A FR 7028045A FR 7028045 A FR7028045 A FR 7028045A FR 2057839 A5 FR2057839 A5 FR 2057839A5
Authority
FR
France
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.)
Expired
Application number
FR7028045A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of FR2057839A5 publication Critical patent/FR2057839A5/fr
Expired 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
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
FR7028045A 1969-08-26 1970-07-29 Expired FR2057839A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85309369A 1969-08-26 1969-08-26

Publications (1)

Publication Number Publication Date
FR2057839A5 true FR2057839A5 (fr) 1971-05-21

Family

ID=25315027

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7028045A Expired FR2057839A5 (fr) 1969-08-26 1970-07-29

Country Status (4)

Country Link
US (1) US3599552A (fr)
DE (1) DE2042136A1 (fr)
FR (1) FR2057839A5 (fr)
GB (1) GB1321094A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3782831A (en) * 1971-11-05 1974-01-01 Hunter Eng Co Angular position transducer apparatus
US3783269A (en) * 1972-06-05 1974-01-01 Honeywell Inc Automatic focus positioning circuit
US3776639A (en) * 1972-06-05 1973-12-04 Honeywell Inc Frequency responsive focus detecting apparatus
US4040739A (en) * 1976-03-15 1977-08-09 Witte Wolfgang W Method and device for generating a signal dependent on the distance of an object in an object space
US4636053A (en) * 1978-02-24 1987-01-13 Canon Kabushiki Kaisha Distance detecting device
US4367027A (en) * 1980-03-12 1983-01-04 Honeywell Inc. Active auto focus system improvement
US4317991A (en) * 1980-03-12 1982-03-02 Honeywell Inc. Digital auto focus system utilizing a photodetector array
JPS5888727A (ja) * 1981-11-20 1983-05-26 Canon Inc 自動焦点カメラ
EP0091805B1 (fr) * 1982-04-08 1989-07-26 Olympus Optical Co., Ltd. Détecteur de l'état de focalisation pour endoscope
US4494868A (en) * 1982-08-18 1985-01-22 Eastman Kodak Company Rangefinder device with focused elongated light source
US4470684A (en) * 1983-04-11 1984-09-11 Eastman Kodak Company Energy efficient charging apparatus for an electronic flash
US4584477A (en) * 1983-11-29 1986-04-22 West Electric Company, Ltd. Method for measuring distance and optical distance meter
US6812968B1 (en) 1998-12-31 2004-11-02 Lucent Technologies Inc. Camera with configurable focus area

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443502A (en) * 1966-08-23 1969-05-13 Eastman Kodak Co Automatic focusing for cameras
US3450018A (en) * 1966-08-30 1969-06-17 Bell & Howell Co Automatic focusing apparatus

Also Published As

Publication number Publication date
GB1321094A (en) 1973-06-20
US3599552A (en) 1971-08-17
DE2042136A1 (de) 1971-03-25

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Legal Events

Date Code Title Description
ST Notification of lapse