CA1122455A - Lens movement actuated reference and sequencing means for cameras having unidirectional automatic focusing - Google Patents

Lens movement actuated reference and sequencing means for cameras having unidirectional automatic focusing

Info

Publication number
CA1122455A
CA1122455A CA318,864A CA318864A CA1122455A CA 1122455 A CA1122455 A CA 1122455A CA 318864 A CA318864 A CA 318864A CA 1122455 A CA1122455 A CA 1122455A
Authority
CA
Canada
Prior art keywords
lens
actuator
switch
conductive
range
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.)
Expired
Application number
CA318,864A
Other languages
English (en)
French (fr)
Inventor
Edwin K. Shenk
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of CA1122455A publication Critical patent/CA1122455A/en
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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Lens Barrels (AREA)
  • Automatic Focus Adjustment (AREA)
CA318,864A 1977-12-30 1978-12-29 Lens movement actuated reference and sequencing means for cameras having unidirectional automatic focusing Expired CA1122455A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86585277A 1977-12-30 1977-12-30
US865,852 1986-05-22

Publications (1)

Publication Number Publication Date
CA1122455A true CA1122455A (en) 1982-04-27

Family

ID=25346383

Family Applications (1)

Application Number Title Priority Date Filing Date
CA318,864A Expired CA1122455A (en) 1977-12-30 1978-12-29 Lens movement actuated reference and sequencing means for cameras having unidirectional automatic focusing

Country Status (9)

Country Link
JP (1) JPS54109837A (de)
AT (1) AT377101B (de)
AU (1) AU525816B2 (de)
CA (1) CA1122455A (de)
CH (1) CH637222A5 (de)
DE (1) DE2856573A1 (de)
FR (1) FR2413680A1 (de)
GB (1) GB2013353B (de)
IE (1) IE48251B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110235058A (zh) * 2017-01-27 2019-09-13 富士胶片株式会社 相机系统、相机、镜头、附件及相机系统的附件检测方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56133722A (en) * 1980-03-03 1981-10-20 Polaroid Corp Device for focusing image for photographic camera and method therfor
JPS59125718A (ja) * 1983-01-06 1984-07-20 Canon Inc 複写装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105288B2 (de) * 1970-02-14 1973-03-15 Kabushiki Kaisha Ricoh, Tokio Kamera mit automatischer scharfeinstellung
US3917395A (en) * 1973-06-28 1975-11-04 Honeywell Inc Control circuit for photographic apparatus
CA1099554A (en) * 1976-10-04 1981-04-21 Polaroid Corporation Automatic range finding and focussing camera

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110235058A (zh) * 2017-01-27 2019-09-13 富士胶片株式会社 相机系统、相机、镜头、附件及相机系统的附件检测方法
CN110235058B (zh) * 2017-01-27 2021-04-30 富士胶片株式会社 相机系统、相机、镜头、附件及相机系统的附件检测方法
US11265448B2 (en) 2017-01-27 2022-03-01 Fujifilm Corporation Camera system, camera, lens, accessory, and accessory detection method of camera system

Also Published As

Publication number Publication date
IE48251B1 (en) 1984-11-14
GB2013353A (en) 1979-08-08
FR2413680A1 (fr) 1979-07-27
CH637222A5 (de) 1983-07-15
AU525816B2 (en) 1982-12-02
IE782563L (en) 1979-06-30
DE2856573A1 (de) 1979-07-05
AU4306279A (en) 1979-07-05
GB2013353B (en) 1982-05-19
FR2413680B1 (de) 1983-11-18
JPS54109837A (en) 1979-08-28
ATA1279A (de) 1984-06-15
AT377101B (de) 1985-02-11

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Legal Events

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