GB1403427A - Control circuit for optical projection systems - Google Patents

Control circuit for optical projection systems

Info

Publication number
GB1403427A
GB1403427A GB4203372A GB4203372A GB1403427A GB 1403427 A GB1403427 A GB 1403427A GB 4203372 A GB4203372 A GB 4203372A GB 4203372 A GB4203372 A GB 4203372A GB 1403427 A GB1403427 A GB 1403427A
Authority
GB
United Kingdom
Prior art keywords
lamp
switch
circuit
gate
slide
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
GB4203372A
Other languages
English (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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 DE19712145100 external-priority patent/DE2145100C3/de
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1403427A publication Critical patent/GB1403427A/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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/18—Devices for changing pictures in viewing apparatus or projectors with fade-in and fade-out effects

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
GB4203372A 1971-09-09 1972-09-11 Control circuit for optical projection systems Expired GB1403427A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712145100 DE2145100C3 (de) 1971-09-09 Steuerschaltung für Überblendprojektion im Vorwärts- und im Rückwärtslauf

Publications (1)

Publication Number Publication Date
GB1403427A true GB1403427A (en) 1975-08-28

Family

ID=5819096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4203372A Expired GB1403427A (en) 1971-09-09 1972-09-11 Control circuit for optical projection systems

Country Status (5)

Country Link
ES (1) ES406491A1 (cg-RX-API-DMAC10.html)
FR (1) FR2152205A5 (cg-RX-API-DMAC10.html)
GB (1) GB1403427A (cg-RX-API-DMAC10.html)
HK (1) HK15976A (cg-RX-API-DMAC10.html)
MY (1) MY7600082A (cg-RX-API-DMAC10.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180113683A1 (en) * 2014-04-28 2018-04-26 Modest Tree Media Inc. Virtual interactive learning environment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353874A1 (fr) * 1976-06-03 1977-12-30 Serac Ind Dispositif pour la commande en fondu enchaine d'au moins une paire de projecteurs de diapositives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180113683A1 (en) * 2014-04-28 2018-04-26 Modest Tree Media Inc. Virtual interactive learning environment

Also Published As

Publication number Publication date
ES406491A1 (es) 1975-07-16
FR2152205A5 (cg-RX-API-DMAC10.html) 1973-04-20
HK15976A (en) 1976-03-26
DE2145100B2 (de) 1973-08-30
DE2145100A1 (de) 1973-03-29
MY7600082A (en) 1976-12-31

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees