IT1014262B - Circuito per lampade di proiettori di diapositive - Google Patents

Circuito per lampade di proiettori di diapositive

Info

Publication number
IT1014262B
IT1014262B IT68700/74A IT6870074A IT1014262B IT 1014262 B IT1014262 B IT 1014262B IT 68700/74 A IT68700/74 A IT 68700/74A IT 6870074 A IT6870074 A IT 6870074A IT 1014262 B IT1014262 B IT 1014262B
Authority
IT
Italy
Prior art keywords
projectors
lamps
slides
circuit
slides projectors
Prior art date
Application number
IT68700/74A
Other languages
English (en)
Original Assignee
Animatic Co Ltd
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 Animatic Co Ltd filed Critical Animatic Co Ltd
Application granted granted Critical
Publication of IT1014262B publication Critical patent/IT1014262B/it

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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices
    • H05B39/083—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
IT68700/74A 1973-05-31 1974-05-30 Circuito per lampade di proiettori di diapositive IT1014262B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2596073A GB1477305A (en) 1973-05-31 1973-05-31 Circuit for controlling the illumination of slide projector lamps

Publications (1)

Publication Number Publication Date
IT1014262B true IT1014262B (it) 1977-04-20

Family

ID=10236109

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68700/74A IT1014262B (it) 1973-05-31 1974-05-30 Circuito per lampade di proiettori di diapositive

Country Status (12)

Country Link
US (1) US3958875A (it)
JP (1) JPS5050040A (it)
BE (1) BE815655A (it)
CA (1) CA1043855A (it)
DE (1) DE2426097A1 (it)
DK (1) DK295674A (it)
ES (1) ES426832A1 (it)
FR (1) FR2232170B3 (it)
GB (1) GB1477305A (it)
IT (1) IT1014262B (it)
LU (1) LU70200A1 (it)
NL (1) NL7407281A (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000722A1 (en) * 1980-08-20 1982-03-04 Corp Gaf Built-in dissolve unit for slide projectors
DE3202124C2 (de) * 1982-01-23 1986-03-20 Kodak Ag, 7000 Stuttgart Schaltungsanordnung zur Steuerung der Überblendung bei Diaprojektoren
DE4201176A1 (de) * 1992-01-17 1993-07-22 Kodak Ag Fernbedienbarer diaprojektor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282155A (en) * 1964-09-25 1966-11-01 Jr James C Cleary Slide projection control system
US3622236A (en) * 1970-03-04 1971-11-23 Univ Southern Illinois Image display dissolve control
US3841744A (en) * 1971-09-01 1974-10-15 L Rubin Multiple slide projector control system
BE785520A (fr) * 1972-06-28 1972-10-16 Oury Claude Dispositif et code permettant la projection de diapositives en fondu enchaine.

Also Published As

Publication number Publication date
JPS5050040A (it) 1975-05-06
BE815655A (fr) 1974-09-16
NL7407281A (it) 1974-12-03
DE2426097A1 (de) 1974-12-19
GB1477305A (en) 1977-06-22
ES426832A1 (es) 1976-07-16
DK295674A (it) 1975-01-20
FR2232170A1 (it) 1974-12-27
FR2232170B3 (it) 1977-04-08
LU70200A1 (it) 1974-10-09
US3958875A (en) 1976-05-25
CA1043855A (en) 1978-12-05

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