CA953351A - Computer flash with remote sensor and two-wire control of flash firing and quench - Google Patents

Computer flash with remote sensor and two-wire control of flash firing and quench

Info

Publication number
CA953351A
CA953351A CA131,649A CA131649A CA953351A CA 953351 A CA953351 A CA 953351A CA 131649 A CA131649 A CA 131649A CA 953351 A CA953351 A CA 953351A
Authority
CA
Canada
Prior art keywords
flash
quench
remote sensor
wire control
computer
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
CA131,649A
Other versions
CA131649S (en
Inventor
Francis T. Ogawa
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Application granted granted Critical
Publication of CA953351A publication Critical patent/CA953351A/en
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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
    • 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
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
CA131,649A 1971-01-22 1972-01-04 Computer flash with remote sensor and two-wire control of flash firing and quench Expired CA953351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10887871A 1971-01-22 1971-01-22

Publications (1)

Publication Number Publication Date
CA953351A true CA953351A (en) 1974-08-20

Family

ID=22324589

Family Applications (1)

Application Number Title Priority Date Filing Date
CA131,649A Expired CA953351A (en) 1971-01-22 1972-01-04 Computer flash with remote sensor and two-wire control of flash firing and quench

Country Status (3)

Country Link
US (1) US3737721A (en)
CA (1) CA953351A (en)
DE (1) DE2202750C3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52156618A (en) * 1976-06-23 1977-12-27 Nippon Chemical Ind Flash camera controller
JPS5489629A (en) * 1977-12-26 1979-07-16 Olympus Optical Co Ltd Adapter for auto strobe device
US4150891A (en) * 1978-02-02 1979-04-24 Eastman Kodak Company Exposure control apparatus including rate responsive lag compensation
US4255030A (en) * 1979-09-13 1981-03-10 Polaroid Corporation Camera with proportional fill flash quench strobe
US4272188A (en) * 1979-09-19 1981-06-09 Xerox Corporation Exposure compensation circuit for a copier
US4656366A (en) * 1979-12-28 1987-04-07 American Telephone And Telegraph Company At&T Bell Laboratories Control circuitry using two branch circuits for high voltage solid-state switches
US4250409A (en) * 1979-12-28 1981-02-10 Bell Telephone Laboratories, Incorporated Control circuitry using a pull-down transistor for high voltage field terminated diode solid-state switches
US4333718A (en) * 1980-01-16 1982-06-08 Rollei Of America, Inc. Photographic flash control circuitry having selectively operable internal sensor
JPS5745837A (en) * 1980-09-03 1982-03-16 Olympus Optical Co Photographing apparatus of endoscope
EP1624734A3 (en) * 2001-05-02 2006-06-07 Fuji Photo Film Co., Ltd. Flash device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973335C (en) * 1954-02-19 1960-01-28 Transformatoren Und App Fabrik Circuit arrangement for electronic flash units with at least two flashing lights
US3122677A (en) * 1961-01-12 1964-02-25 American Speedlight Corp Electric flash producing system having shunting means to terminate flash at desired instant
US3350603A (en) * 1964-08-31 1967-10-31 Honeywell Inc Electronic flash with automatic termination means
US3340426A (en) * 1965-05-04 1967-09-05 Honeywell Inc Control system for terminating the discharge through a flash lamp
US3350604A (en) * 1965-06-01 1967-10-31 Honeywell Inc Flash lamp controlled by photosensitive light integrating device
US3474443A (en) * 1966-03-30 1969-10-21 Monsanto Co Alarm first-out circuitry
US3568582A (en) * 1967-09-27 1971-03-09 Konishiroku Photo Ind Electronic shutter
US3566132A (en) * 1967-12-26 1971-02-23 Gen Electric Beginning-of-tape and end-of-tape sensor
US3585442A (en) * 1968-02-07 1971-06-15 Rollei Werke Franke Heidecke Flashlamp circuit having automatic light termination means
DE1764204B1 (en) * 1968-04-23 1972-01-05 Bosch Photokino Gmbh ELECTRONIC BLOCKING UNIT
US3517255A (en) * 1968-07-25 1970-06-23 Honeywell Inc Flash apparatus with automatic light termination using light activated silicon controlled rectifier
DE1928157A1 (en) * 1969-06-03 1970-12-10 Loewe Opta Gmbh Circuit arrangement for electronic flash units with useful flash duration regulated as a function of the amount of reflected light
US3638543A (en) * 1970-07-17 1972-02-01 Olympus Optical Co Automatic exposure system for photographic camera

Also Published As

Publication number Publication date
DE2202750B2 (en) 1980-07-24
US3737721A (en) 1973-06-05
DE2202750A1 (en) 1972-08-03
DE2202750C3 (en) 1984-09-20

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