GB2069286B - Photographic camera of automatic focussing type - Google Patents

Photographic camera of automatic focussing type

Info

Publication number
GB2069286B
GB2069286B GB8041420A GB8041420A GB2069286B GB 2069286 B GB2069286 B GB 2069286B GB 8041420 A GB8041420 A GB 8041420A GB 8041420 A GB8041420 A GB 8041420A GB 2069286 B GB2069286 B GB 2069286B
Authority
GB
United Kingdom
Prior art keywords
photographic camera
automatic focussing
focussing type
type
automatic
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
GB8041420A
Other versions
GB2069286A (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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of GB2069286A publication Critical patent/GB2069286A/en
Application granted granted Critical
Publication of GB2069286B publication Critical patent/GB2069286B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
GB8041420A 1979-12-27 1980-12-29 Photographic camera of automatic focussing type Expired GB2069286B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17382579A JPS5694334A (en) 1979-12-27 1979-12-27 Automatic focusing camera

Publications (2)

Publication Number Publication Date
GB2069286A GB2069286A (en) 1981-08-19
GB2069286B true GB2069286B (en) 1984-02-29

Family

ID=15967845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8041420A Expired GB2069286B (en) 1979-12-27 1980-12-29 Photographic camera of automatic focussing type

Country Status (2)

Country Link
JP (1) JPS5694334A (en)
GB (1) GB2069286B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5779922A (en) * 1980-11-07 1982-05-19 Nippon Kogaku Kk <Nikon> Automatic focusing camera
JPS58214130A (en) * 1982-06-04 1983-12-13 West Electric Co Ltd Automatic focus controller
JPS599610A (en) * 1982-07-09 1984-01-19 Hitachi Denshi Ltd Automatic focusing device
JPS5924811A (en) * 1982-08-02 1984-02-08 Hitachi Denshi Ltd Automatic focusing device
JPS5961823A (en) * 1982-10-01 1984-04-09 Matsushita Electric Ind Co Ltd Lens driving device
JPS62226114A (en) * 1986-03-27 1987-10-05 Nikon Corp Automatic focusing device
FR2598218A1 (en) * 1986-04-30 1987-11-06 Commissariat Energie Atomique CONTACTLESS LINEAR MEASURING SENSOR OF THE DISTANCE OF A TARGET BY RETROFUL RADIATION
DE4004530C2 (en) * 1990-02-14 1999-07-29 Stefan Reich Optical distance measurement
EP1380811B2 (en) 2002-07-03 2013-08-07 Optosys SA Optical distance measuring device
CN109491091B (en) * 2019-01-10 2024-04-16 京东方科技集团股份有限公司 Optical system applied to VRAR system and focusing method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531442B2 (en) * 1972-05-06 1980-08-18
JPS5332699B2 (en) * 1973-02-28 1978-09-09
US4107520A (en) * 1977-06-06 1978-08-15 Honeywell Inc. Continuous focus proportional controller

Also Published As

Publication number Publication date
JPS5694334A (en) 1981-07-30
GB2069286A (en) 1981-08-19
JPH0226207B2 (en) 1990-06-08

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20001228