GB2005852B - Apparatus having automatic and manual ranging means - Google Patents

Apparatus having automatic and manual ranging means

Info

Publication number
GB2005852B
GB2005852B GB7838900A GB7838900A GB2005852B GB 2005852 B GB2005852 B GB 2005852B GB 7838900 A GB7838900 A GB 7838900A GB 7838900 A GB7838900 A GB 7838900A GB 2005852 B GB2005852 B GB 2005852B
Authority
GB
United Kingdom
Prior art keywords
automatic
ranging means
manual ranging
manual
ranging
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
GB7838900A
Other languages
English (en)
Other versions
GB2005852A (en
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
Publication of GB2005852A publication Critical patent/GB2005852A/en
Application granted granted Critical
Publication of GB2005852B publication Critical patent/GB2005852B/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
    • G02B7/40—Systems for automatic generation of focusing signals using time delay of the reflected waves, e.g. of ultrasonic waves

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Lens Barrels (AREA)
  • Automatic Focus Adjustment (AREA)
  • Shutters For Cameras (AREA)
GB7838900A 1977-10-03 1978-10-02 Apparatus having automatic and manual ranging means Expired GB2005852B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83858177A 1977-10-03 1977-10-03

Publications (2)

Publication Number Publication Date
GB2005852A GB2005852A (en) 1979-04-25
GB2005852B true GB2005852B (en) 1982-03-17

Family

ID=25277484

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7838900A Expired GB2005852B (en) 1977-10-03 1978-10-02 Apparatus having automatic and manual ranging means

Country Status (6)

Country Link
JP (1) JPS5461525A (enrdf_load_stackoverflow)
CA (1) CA1122454A (enrdf_load_stackoverflow)
DE (1) DE2842851B2 (enrdf_load_stackoverflow)
FR (1) FR2404868A1 (enrdf_load_stackoverflow)
GB (1) GB2005852B (enrdf_load_stackoverflow)
IE (1) IE47956B1 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5573026A (en) * 1978-11-25 1980-06-02 Minolta Camera Co Ltd Automatic-manual focus controllable lens-barrel
JPS5573025A (en) * 1978-11-25 1980-06-02 Minolta Camera Co Ltd Changeover device of automatic-manual focus controllable lens-barrel
JPS5619033A (en) * 1979-07-25 1981-02-23 Canon Inc Automatic focus control unit
JPS5648620A (en) * 1979-09-28 1981-05-01 Nippon Seimitsu Kogyo Kk Automatic focus controlling mechanism of camera
JPS62201738U (enrdf_load_stackoverflow) * 1986-06-13 1987-12-23

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH400602A (de) * 1961-07-29 1965-10-15 Agfa Ag Objektiv mit veränderbarer Brennweite, mit einer Vorrichtung zur wahlweisen Brennweitenverstellung von Hand und durch einen Motor
US3522764A (en) * 1968-03-25 1970-08-04 Polaroid Corp Rangefinding and focusing system for photographic cameras and the like

Also Published As

Publication number Publication date
IE781972L (en) 1979-04-03
DE2842851B2 (de) 1979-10-31
JPS5461525A (en) 1979-05-17
DE2842851A1 (de) 1979-04-05
FR2404868A1 (fr) 1979-04-27
JPS5751084B2 (enrdf_load_stackoverflow) 1982-10-30
DE2842851C3 (enrdf_load_stackoverflow) 1980-07-17
CA1122454A (en) 1982-04-27
IE47956B1 (en) 1984-08-08
GB2005852A (en) 1979-04-25
FR2404868B1 (enrdf_load_stackoverflow) 1984-08-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921002