BE675659A - - Google Patents

Info

Publication number
BE675659A
BE675659A BE675659DA BE675659A BE 675659 A BE675659 A BE 675659A BE 675659D A BE675659D A BE 675659DA BE 675659 A BE675659 A BE 675659A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE675659A publication Critical patent/BE675659A/xx

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
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
BE675659D 1965-02-03 1966-01-27 BE675659A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42999365A 1965-02-03 1965-02-03

Publications (1)

Publication Number Publication Date
BE675659A true BE675659A (xx) 1966-07-27

Family

ID=23705609

Family Applications (1)

Application Number Title Priority Date Filing Date
BE675659D BE675659A (xx) 1965-02-03 1966-01-27

Country Status (6)

Country Link
US (1) US3450883A (xx)
BE (1) BE675659A (xx)
CH (1) CH451552A (xx)
DK (1) DK114584B (xx)
GB (1) GB1131831A (xx)
NL (1) NL6601313A (xx)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1193177A (en) * 1967-12-14 1970-05-28 Rank Organisation Ltd Improvements in or relating to Automatic Control Systems
US3560647A (en) * 1968-02-27 1971-02-02 Bell Telephone Labor Inc Automatic focusing system
US3620613A (en) * 1968-05-10 1971-11-16 Fuji Photo Film Co Ltd Automatic focusing device for projectors
US3571598A (en) * 1969-12-08 1971-03-23 Mc Donnell Douglas Corp Automatic focusing means using an analog signal correlator
US3635551A (en) * 1970-05-18 1972-01-18 Gaf Corp Automatic focusing system for projectors and the like
US3639048A (en) * 1970-07-23 1972-02-01 Eastman Kodak Co Automatic ranging and focusing projector
US3631785A (en) * 1970-07-30 1972-01-04 Eastman Kodak Co Automatic focusing device
US3708619A (en) * 1970-10-15 1973-01-02 Goodyear Aerospace Corp Automatic focusing of optical systems
US3776639A (en) * 1972-06-05 1973-12-04 Honeywell Inc Frequency responsive focus detecting apparatus
US3783269A (en) * 1972-06-05 1974-01-01 Honeywell Inc Automatic focus positioning circuit
JPS5531445B2 (xx) * 1972-06-17 1980-08-18
US4053934A (en) * 1972-12-29 1977-10-11 Kornreich Philipp G Measuring the quality of images
US3904869A (en) * 1973-10-09 1975-09-09 Honeywell Inc Focus detecting apparatus
US3904870A (en) * 1973-10-09 1975-09-09 Honeywell Inc Focus detecting apparatus
US3906219A (en) * 1973-10-09 1975-09-16 Honeywell Inc Focus detecting apparatus
US3846628A (en) * 1973-12-06 1974-11-05 Honeywell Inc Sensitivity balancing apparatus for photo responsive detecting circuits
US3846629A (en) * 1973-12-06 1974-11-05 Honeywell Inc Sensitivity balancing apparatus for photo responsive detecting circuits
US3860935A (en) * 1973-12-19 1975-01-14 Honeywell Inc Auto focus camera
US4002899A (en) * 1974-12-04 1977-01-11 Honeywell Inc. Focus detecting apparatus
US3958117A (en) * 1975-07-15 1976-05-18 Honeywell Inc. Distance determining and automatic focusing apparatus
US4103152A (en) * 1976-06-29 1978-07-25 Honeywell Inc. Distance determining and automatic focusing apparatus with false peak discrimination
US4080531A (en) * 1976-06-29 1978-03-21 Honeywell Inc. Single pass distance determining and automatic focusing apparatus with separately adjusted optical element
US4184968A (en) * 1978-02-13 1980-01-22 Honeywell Inc. Auto focus system
US4470676A (en) * 1978-07-28 1984-09-11 Canon Kabushiki Kaisha Focus detecting device
US4352545A (en) * 1979-02-13 1982-10-05 Asahi Kogaku Kogyo Kabushiki Kaisha Camera focus detecting device
US4349254A (en) * 1979-02-13 1982-09-14 Asahi Kogaku Kogyo Kabushiki Kaisha Camera focus detecting device
JPS63316838A (ja) * 1987-06-19 1988-12-26 Minolta Camera Co Ltd 拡大投影装置における自動焦点調節装置
JP2555611B2 (ja) * 1987-06-26 1996-11-20 ミノルタ株式会社 マイクロ画像処理装置
US5210565A (en) * 1991-06-21 1993-05-11 Eastman Kodak Company Oscillating pupil autofocus method and apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL181528B (nl) * 1952-09-22 Sumitomo Electric Industries Inrichting voor het meten van een spanning of van een elektrisch veld met gebruikmaking van licht.
DE1447450A1 (de) * 1963-06-14 1968-10-31 Agfa Ag Entfernungsmess- oder Steuervorrichtung

Also Published As

Publication number Publication date
US3450883A (en) 1969-06-17
CH451552A (fr) 1968-05-15
DK114584B (da) 1969-07-14
NL6601313A (xx) 1966-08-04
GB1131831A (en) 1968-10-30

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