FR2349169A1 - AUTOMATIC FOCUS ADJUSTMENT DEVICE - Google Patents

AUTOMATIC FOCUS ADJUSTMENT DEVICE

Info

Publication number
FR2349169A1
FR2349169A1 FR7712440A FR7712440A FR2349169A1 FR 2349169 A1 FR2349169 A1 FR 2349169A1 FR 7712440 A FR7712440 A FR 7712440A FR 7712440 A FR7712440 A FR 7712440A FR 2349169 A1 FR2349169 A1 FR 2349169A1
Authority
FR
France
Prior art keywords
adjustment device
focus adjustment
automatic focus
automatic
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.)
Withdrawn
Application number
FR7712440A
Other languages
French (fr)
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.)
Bell and Howell Japan
Original Assignee
Bell and Howell Japan
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 Bell and Howell Japan filed Critical Bell and Howell Japan
Publication of FR2349169A1 publication Critical patent/FR2349169A1/en
Withdrawn legal-status Critical Current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
    • G02B7/305—Systems for automatic generation of focusing signals using parallactic triangle with a base line using a scanner
FR7712440A 1976-04-23 1977-04-25 AUTOMATIC FOCUS ADJUSTMENT DEVICE Withdrawn FR2349169A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4639576A JPS52129521A (en) 1976-04-23 1976-04-23 Automatic focusing device

Publications (1)

Publication Number Publication Date
FR2349169A1 true FR2349169A1 (en) 1977-11-18

Family

ID=12745947

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7712440A Withdrawn FR2349169A1 (en) 1976-04-23 1977-04-25 AUTOMATIC FOCUS ADJUSTMENT DEVICE

Country Status (5)

Country Link
JP (1) JPS52129521A (en)
AT (1) AT370246B (en)
DE (1) DE2717605A1 (en)
FR (1) FR2349169A1 (en)
GB (1) GB1555418A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410835A1 (en) * 1977-12-02 1979-06-29 Sankyo Kogaku Kogyo Kk Automatic focussing mechanism for camera - uses long base rangefinder and two signal generators which control rangefinder mirror movement and taking lens drive
FR2410845A1 (en) * 1977-11-30 1979-06-29 Sankyo Kogaku Kogyo Kk FOCUS SENSOR FOR PHOTOGRAPHIC OR CINEMATOGRAPHIC DEVICES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410845A1 (en) * 1977-11-30 1979-06-29 Sankyo Kogaku Kogyo Kk FOCUS SENSOR FOR PHOTOGRAPHIC OR CINEMATOGRAPHIC DEVICES
FR2410835A1 (en) * 1977-12-02 1979-06-29 Sankyo Kogaku Kogyo Kk Automatic focussing mechanism for camera - uses long base rangefinder and two signal generators which control rangefinder mirror movement and taking lens drive

Also Published As

Publication number Publication date
DE2717605A1 (en) 1977-11-10
JPS5619616B2 (en) 1981-05-08
AT370246B (en) 1983-03-10
ATA285577A (en) 1982-07-15
JPS52129521A (en) 1977-10-31
GB1555418A (en) 1979-11-07

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Legal Events

Date Code Title Description
ST Notification of lapse