FR2128703B2 - - Google Patents

Info

Publication number
FR2128703B2
FR2128703B2 FR7207881A FR7207881A FR2128703B2 FR 2128703 B2 FR2128703 B2 FR 2128703B2 FR 7207881 A FR7207881 A FR 7207881A FR 7207881 A FR7207881 A FR 7207881A FR 2128703 B2 FR2128703 B2 FR 2128703B2
Authority
FR
France
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
FR7207881A
Other languages
French (fr)
Other versions
FR2128703A2 (en
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.)
LUMINA SPRL
Original Assignee
LUMINA SPRL
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 LUMINA SPRL filed Critical LUMINA SPRL
Publication of FR2128703A2 publication Critical patent/FR2128703A2/fr
Application granted granted Critical
Publication of FR2128703B2 publication Critical patent/FR2128703B2/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H05B41/325—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation by measuring the incident light
    • 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
    • G03B2215/0514—Separate unit
    • G03B2215/0517—Housing
    • G03B2215/0525—Reflector
    • G03B2215/0528—Reflector movable reflector, e.g. change of illumination angle or illumination direction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR7207881A 1968-02-13 1972-03-07 Expired FR2128703B2 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
BE54471 1968-02-13
BE66425 1968-11-21
BE68017 1968-12-27
BE68982 1969-01-20
BE100618 1971-03-08
BE102057 1971-04-09
BE104488 1971-06-11

Publications (2)

Publication Number Publication Date
FR2128703A2 FR2128703A2 (en) 1972-10-20
FR2128703B2 true FR2128703B2 (en) 1977-12-23

Family

ID=27560737

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7207881A Expired FR2128703B2 (en) 1968-02-13 1972-03-07

Country Status (1)

Country Link
FR (1) FR2128703B2 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US26999A (en) * 1860-01-31 Printing-press
DE906323C (en) * 1940-11-20 1954-03-11 Sack Gmbh Maschf Device for turning a sheet lying on a roller table by 180íÒ and around its longitudinal axis
DE911832C (en) * 1951-09-04 1954-05-20 Franz Prutscher Toys in the form of figures which, placed above their center of gravity on a shaft or axis, move back and forth
DE956875C (en) * 1952-03-08 1957-01-24 Kurt Neubauer Dipl Ing Breadcrumbs
DE1934687A1 (en) * 1969-07-09 1971-01-14
DE1937631A1 (en) * 1969-07-19 1971-02-04 Loewe Opta Gmbh Electronic flash unit with regulated light energy
DE1951046A1 (en) * 1969-10-04 1971-04-15 Loewe Opta Gmbh Electronic flash device with adjustable flash duration depending on the amount of light reflected from the object
BE758644A (en) * 1969-11-08 1971-05-06 Philips Nv DEVICE EQUIPPED WITH AN ELECTRONIC FLASH
DE2014923C3 (en) * 1970-03-26 1980-04-10 Philips Patentverwaltung Gmbh, 2000 Hamburg Circuit arrangement for blocking a thyristor connected in series with a load

Also Published As

Publication number Publication date
FR2128703A2 (en) 1972-10-20

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name