BE825883A - OPTICAL DEVICE TO OBTAIN THE CROSS-FADE IN A SLIDE PROJECTION DEVICE - Google Patents

OPTICAL DEVICE TO OBTAIN THE CROSS-FADE IN A SLIDE PROJECTION DEVICE

Info

Publication number
BE825883A
BE825883A BE153655A BE153655A BE825883A BE 825883 A BE825883 A BE 825883A BE 153655 A BE153655 A BE 153655A BE 153655 A BE153655 A BE 153655A BE 825883 A BE825883 A BE 825883A
Authority
BE
Belgium
Prior art keywords
fade
cross
slide projection
optical device
projection device
Prior art date
Application number
BE153655A
Other languages
French (fr)
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 filed Critical
Publication of BE825883A publication Critical patent/BE825883A/en

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)
  • Lenses (AREA)
BE153655A 1974-02-25 1975-02-24 OPTICAL DEVICE TO OBTAIN THE CROSS-FADE IN A SLIDE PROJECTION DEVICE BE825883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH260274A CH580825A5 (en) 1974-02-25 1974-02-25

Publications (1)

Publication Number Publication Date
BE825883A true BE825883A (en) 1975-06-16

Family

ID=4237446

Family Applications (1)

Application Number Title Priority Date Filing Date
BE153655A BE825883A (en) 1974-02-25 1975-02-24 OPTICAL DEVICE TO OBTAIN THE CROSS-FADE IN A SLIDE PROJECTION DEVICE

Country Status (12)

Country Link
JP (1) JPS50127630A (en)
AU (1) AU7843875A (en)
BE (1) BE825883A (en)
CH (1) CH580825A5 (en)
DD (1) DD117538A5 (en)
DE (1) DE2506873A1 (en)
ES (1) ES435043A1 (en)
IT (1) IT1030207B (en)
NL (1) NL7502024A (en)
NO (1) NO750548L (en)
SE (1) SE7501899L (en)
SU (1) SU549092A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107809628A (en) * 2017-05-12 2018-03-16 杭州隅千象科技有限公司 Projecting method, projecting apparatus and the optical projection system of multi-direction ring curtain all standing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61501473A (en) * 1984-03-16 1986-07-17 クレ−マ−、ギデオン　エイ． Multiple projection optical slide projection device using an annular slide tray and having a fixed position slide gate
US9291826B2 (en) * 2013-11-20 2016-03-22 Christie Digital Systems Usa, Inc. System for variable distribution of light to a plurality of projectors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107809628A (en) * 2017-05-12 2018-03-16 杭州隅千象科技有限公司 Projecting method, projecting apparatus and the optical projection system of multi-direction ring curtain all standing
CN107809628B (en) * 2017-05-12 2024-05-28 杭州一隅千象科技有限公司 Projection method, projector and projection system with full coverage of multidirectional ring screen

Also Published As

Publication number Publication date
ES435043A1 (en) 1976-12-16
SU549092A3 (en) 1977-02-28
JPS50127630A (en) 1975-10-07
DD117538A5 (en) 1976-01-12
DE2506873A1 (en) 1975-08-28
NO750548L (en) 1975-08-26
IT1030207B (en) 1979-03-30
AU7843875A (en) 1976-08-26
CH580825A5 (en) 1976-10-15
SE7501899L (en) 1975-08-26
NL7502024A (en) 1975-08-27

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