DK114361B - Filmgengiver med en elektrisk lyskilde, der tilføres impulser fra en styret impulsensretter. - Google Patents

Filmgengiver med en elektrisk lyskilde, der tilføres impulser fra en styret impulsensretter.

Info

Publication number
DK114361B
DK114361B DK480965AA DK480965A DK114361B DK 114361 B DK114361 B DK 114361B DK 480965A A DK480965A A DK 480965AA DK 480965 A DK480965 A DK 480965A DK 114361 B DK114361 B DK 114361B
Authority
DK
Denmark
Prior art keywords
pulses
light source
electric light
source supplied
controlled pulse
Prior art date
Application number
DK480965AA
Other languages
English (en)
Inventor
P Hoekstra
J Teisman
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of DK114361B publication Critical patent/DK114361B/da

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
    • H05B41/34—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp to provide a sequence of flashes
    • 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
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2026—Gas discharge type light sources, e.g. arcs
    • 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
    • G03B21/20—Lamp housings
    • G03B21/2053—Intensity control of illuminating light
    • 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
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Rectifiers (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
DK480965AA 1964-09-22 1965-09-18 Filmgengiver med en elektrisk lyskilde, der tilføres impulser fra en styret impulsensretter. DK114361B (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6411006A NL6411006A (da) 1964-09-22 1964-09-22

Publications (1)

Publication Number Publication Date
DK114361B true DK114361B (da) 1969-06-23

Family

ID=19791071

Family Applications (1)

Application Number Title Priority Date Filing Date
DK480965AA DK114361B (da) 1964-09-22 1965-09-18 Filmgengiver med en elektrisk lyskilde, der tilføres impulser fra en styret impulsensretter.

Country Status (5)

Country Link
US (1) US3443154A (da)
BE (1) BE669866A (da)
DK (1) DK114361B (da)
ES (1) ES317611A1 (da)
NL (1) NL6411006A (da)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953763A (en) * 1975-04-23 1976-04-27 General Electric Company Pulsed xenon arc lamp operating circuit
US4013921A (en) * 1975-06-02 1977-03-22 Austin Electronics, Inc. Warning light control
US4262234A (en) * 1979-10-12 1981-04-14 Burroughs Corporation SCR Lamp supply trigger circuit
US5010279A (en) * 1985-08-26 1991-04-23 Lathom Michael S Switched capacitive ballasts for discharge lamps
US4808886A (en) * 1985-08-26 1989-02-28 Lathom Michael S Switched capacitive ballasts for discharge lamps

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031599A (en) * 1959-12-21 1962-04-24 Miehle Goss Dexter Inc Alternate discharge multiple flash lamp circuit and control
US3127540A (en) * 1961-01-31 1964-03-31 Rotax Ltd Spark ignition apparatus
US3211964A (en) * 1963-04-05 1965-10-12 Ampex Actuator power supply

Also Published As

Publication number Publication date
US3443154A (en) 1969-05-06
ES317611A1 (es) 1965-12-01
NL6411006A (da) 1966-03-23
BE669866A (da)

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