CA1173284A - Systeme de focalisation automatique - Google Patents

Systeme de focalisation automatique

Info

Publication number
CA1173284A
CA1173284A CA000397160A CA397160A CA1173284A CA 1173284 A CA1173284 A CA 1173284A CA 000397160 A CA000397160 A CA 000397160A CA 397160 A CA397160 A CA 397160A CA 1173284 A CA1173284 A CA 1173284A
Authority
CA
Canada
Prior art keywords
lens
light source
distance measuring
reflected
focus
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
CA000397160A
Other languages
English (en)
Inventor
Tatsuo Inoue
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA1173284A publication Critical patent/CA1173284A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing
    • 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
    • G02B7/282—Autofocusing of zoom lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Character Input (AREA)
  • Accessories Of Cameras (AREA)
CA000397160A 1981-03-17 1982-02-26 Systeme de focalisation automatique Expired CA1173284A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56038447A JPS57154206A (en) 1981-03-17 1981-03-17 Focusing device
JP38447/81 1981-03-17

Publications (1)

Publication Number Publication Date
CA1173284A true CA1173284A (fr) 1984-08-28

Family

ID=12525538

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000397160A Expired CA1173284A (fr) 1981-03-17 1982-02-26 Systeme de focalisation automatique

Country Status (8)

Country Link
JP (1) JPS57154206A (fr)
KR (1) KR890001454B1 (fr)
AT (1) AT376813B (fr)
CA (1) CA1173284A (fr)
DE (1) DE3209517A1 (fr)
FR (1) FR2502354B1 (fr)
GB (1) GB2095505A (fr)
NL (1) NL8201070A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3310601C2 (de) * 1982-03-24 1994-02-10 Canon Kk Entfernungsmeßvorrichtung
JPS5995336U (ja) * 1982-12-17 1984-06-28 ソニー株式会社 ビデオカメラ
JPS606114U (ja) * 1983-06-24 1985-01-17 キヤノン株式会社 焦点検出装置
US4801963A (en) * 1985-12-18 1989-01-31 Canon Kabushiki Kaisha Focus detecting system
US5305047A (en) * 1988-10-11 1994-04-19 Canon Kabushiki Kaisha Pattern projector having a multi-portion projection lens and camera comprising the same
KR102093637B1 (ko) * 2017-10-20 2020-03-27 전자부품연구원 라이다 장치 및 이를 포함하는 라이다 시스템

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759614A (en) * 1971-02-10 1973-09-18 Eastman Kodak Co Dual photocell range finder apparatus
JPS51120725A (en) * 1975-04-16 1976-10-22 Sankyo Kogaku Kogyo Kk Automatic forcusing camera
US4083056A (en) * 1975-09-09 1978-04-04 Asahi Kogaku Kogyo Kabushiki Kaisha Focus detecting device for single-lens reflex cameras
JPS5262022A (en) * 1975-11-17 1977-05-23 Bell & Howell Co Closed loop automatic focusing system
FR2396325A1 (fr) * 1977-07-01 1979-01-26 Olympus Optical Co Dispositif de mise au point automatique d'une image
JPS54155832A (en) * 1978-05-30 1979-12-08 Canon Inc Focusing detector

Also Published As

Publication number Publication date
ATA102382A (de) 1984-05-15
KR830009501A (ko) 1983-12-21
FR2502354B1 (fr) 1985-06-21
AT376813B (de) 1985-01-10
KR890001454B1 (ko) 1989-05-03
GB2095505A (en) 1982-09-29
DE3209517A1 (de) 1982-10-14
NL8201070A (nl) 1982-10-18
JPH0526176B2 (fr) 1993-04-15
JPS57154206A (en) 1982-09-24
FR2502354A1 (fr) 1982-09-24

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry