IT1030207B - Dispositivo ottico per ottenere la dissolvenza in un apparecchio di proiezione di diapositive - Google Patents

Dispositivo ottico per ottenere la dissolvenza in un apparecchio di proiezione di diapositive

Info

Publication number
IT1030207B
IT1030207B IT67464/75A IT6746475A IT1030207B IT 1030207 B IT1030207 B IT 1030207B IT 67464/75 A IT67464/75 A IT 67464/75A IT 6746475 A IT6746475 A IT 6746475A IT 1030207 B IT1030207 B IT 1030207B
Authority
IT
Italy
Prior art keywords
slide projection
optical device
fade
projection device
obtain fade
Prior art date
Application number
IT67464/75A
Other languages
English (en)
Italian (it)
Original Assignee
Gefitec Sa
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 Gefitec Sa filed Critical Gefitec Sa
Application granted granted Critical
Publication of IT1030207B publication Critical patent/IT1030207B/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
    • 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)
IT67464/75A 1974-02-25 1975-02-24 Dispositivo ottico per ottenere la dissolvenza in un apparecchio di proiezione di diapositive IT1030207B (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT1030207B true IT1030207B (it) 1979-03-30

Family

ID=4237446

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67464/75A IT1030207B (it) 1974-02-25 1975-02-24 Dispositivo ottico per ottenere la dissolvenza in un apparecchio di proiezione di diapositive

Country Status (12)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0174931B1 (de) * 1984-03-16 1988-11-17 Gideon A. Kramer Diaprojektor für rundmagazine mit doppeloptik und festen projektionsöffnungen
US9291826B2 (en) * 2013-11-20 2016-03-22 Christie Digital Systems Usa, Inc. System for variable distribution of light to a plurality of projectors
CN107809628B (zh) * 2017-05-12 2024-05-28 杭州一隅千象科技有限公司 多方向环幕全覆盖的投影方法、投影仪及投影系统

Also Published As

Publication number Publication date
DD117538A5 (de) 1976-01-12
JPS50127630A (de) 1975-10-07
ES435043A1 (es) 1976-12-16
DE2506873A1 (de) 1975-08-28
SE7501899L (de) 1975-08-26
BE825883A (fr) 1975-06-16
NL7502024A (nl) 1975-08-27
SU549092A3 (ru) 1977-02-28
AU7843875A (en) 1976-08-26
NO750548L (de) 1975-08-26
CH580825A5 (de) 1976-10-15

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