CH646799A5 - Elektronenblitzgeraet mit schaltbarem ladegeraet fuer den blitzkondensator an einer elektrisch betriebenen kamera. - Google Patents

Elektronenblitzgeraet mit schaltbarem ladegeraet fuer den blitzkondensator an einer elektrisch betriebenen kamera. Download PDF

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Publication number
CH646799A5
CH646799A5 CH262579A CH262579A CH646799A5 CH 646799 A5 CH646799 A5 CH 646799A5 CH 262579 A CH262579 A CH 262579A CH 262579 A CH262579 A CH 262579A CH 646799 A5 CH646799 A5 CH 646799A5
Authority
CH
Switzerland
Prior art keywords
flash
camera
capacitor
transistor
circuit
Prior art date
Application number
CH262579A
Other languages
German (de)
English (en)
Inventor
George Couper Harrison
Original Assignee
Polaroid 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
Priority claimed from US05/889,251 external-priority patent/US4156565A/en
Priority claimed from US05/917,477 external-priority patent/US4162836A/en
Application filed by Polaroid Corp filed Critical Polaroid Corp
Publication of CH646799A5 publication Critical patent/CH646799A5/de

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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits
    • 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
    • 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
    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits
    • G03B7/093—Digital circuits for control of exposure time
    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)
  • Automatic Focus Adjustment (AREA)
CH262579A 1978-03-23 1979-03-20 Elektronenblitzgeraet mit schaltbarem ladegeraet fuer den blitzkondensator an einer elektrisch betriebenen kamera. CH646799A5 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/889,251 US4156565A (en) 1978-03-23 1978-03-23 Control system for flash-illuminated automatic focusing camera
US05/917,477 US4162836A (en) 1978-06-21 1978-06-21 Electronic flash inhibit arrangement

Publications (1)

Publication Number Publication Date
CH646799A5 true CH646799A5 (de) 1984-12-14

Family

ID=27128908

Family Applications (1)

Application Number Title Priority Date Filing Date
CH262579A CH646799A5 (de) 1978-03-23 1979-03-20 Elektronenblitzgeraet mit schaltbarem ladegeraet fuer den blitzkondensator an einer elektrisch betriebenen kamera.

Country Status (7)

Country Link
AT (1) AT365790B (it)
AU (1) AU526851B2 (it)
CH (1) CH646799A5 (it)
DE (1) DE2911306B2 (it)
FR (1) FR2420894A1 (it)
GB (1) GB2017323B (it)
IT (1) IT1192700B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473285A (en) * 1981-11-27 1984-09-25 W. Haking Enterprises Limited Automatic focusing camera

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522764A (en) * 1968-03-25 1970-08-04 Polaroid Corp Rangefinding and focusing system for photographic cameras and the like
DE1908052C2 (de) * 1969-02-18 1971-05-13 Metz App Werke Inh Paul Metz Elektronenblitzgeraet mit automatischer Lichtmengensteuerung
US3917395A (en) * 1973-06-28 1975-11-04 Honeywell Inc Control circuit for photographic apparatus
US3846812A (en) * 1973-12-20 1974-11-05 Polaroid Corp Automatic electronic flash camera
US4074295A (en) * 1976-04-23 1978-02-14 Polaroid Corporation Compact accessory strobe for cameras with battery enclosed film pack

Also Published As

Publication number Publication date
GB2017323A (en) 1979-10-03
AU526851B2 (en) 1983-02-03
IT7921234A0 (it) 1979-03-23
ATA219879A (de) 1981-06-15
AU4534179A (en) 1979-09-27
GB2017323B (en) 1982-09-08
IT1192700B (it) 1988-05-04
DE2911306A1 (de) 1979-10-04
FR2420894A1 (fr) 1979-10-19
DE2911306B2 (de) 1981-02-12
FR2420894B1 (it) 1984-08-10
AT365790B (de) 1982-02-10

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Legal Events

Date Code Title Description
PL Patent ceased