CH108091A - Cinematograph for recording and playback. - Google Patents

Cinematograph for recording and playback.

Info

Publication number
CH108091A
CH108091A CH108091DA CH108091A CH 108091 A CH108091 A CH 108091A CH 108091D A CH108091D A CH 108091DA CH 108091 A CH108091 A CH 108091A
Authority
CH
Switzerland
Prior art keywords
recording
cinematograph
playback
absorbs
short
Prior art date
Application number
Other languages
German (de)
Inventor
Fuer Amateu Aktiengesellschaft
Original Assignee
Amateur Kino Kamera Amak Aktie
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 Amateur Kino Kamera Amak Aktie filed Critical Amateur Kino Kamera Amak Aktie
Publication of CH108091A publication Critical patent/CH108091A/en

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B9/00Exposure-making shutters; Diaphragms
    • G03B9/08Shutters
    • G03B9/10Blade or disc rotating or pivoting about axis normal to its plane

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)

Description

  

      ginematogr        aph    zur Aufnahme und Wiedergabe.    Die Erfindung betrifft einen     Kinemato-          graphen,    der sowohl zum Aufnehmen, wie  zur Wiedergabe dienen     kann.     



  Es ist     bekannt,        .dass    die     Filmschalt-    und       Filmstillstandszeiten,        folglich    die     Verdunk-          lungs-    und Belichtungszeiten bei Wiedergabe  apparaten von denen bei     Aufnahmeapparaten     ganz bedeutend abweichen. Bei der Wieder  gabe ist man bestrebt, .die     Stillstandszeit     möglichst gross, die Schaltdauer möglichst  klein zu machen, um eine grosse Lichtaus  beute zu erreichen.

   Beim     Aufnehmen    von  Bildern dagegen wird eine möglichst kurze  Belichtungsdauer und damit kurze Still  standszeit des belichteten Files erstrebt,  um äusserst scharfe Bilder zu erhalten. Ein  Apparat, der zur Aufnahme und zur Wie  dergabe gleich gut benutzt werden kann, muss  diese sieh widersprechenden Bedingungen       tatsächlich    erfüllen können.  



  Gemäss der Erfindung wird dies     durch     einen     Kinematographen    erzielt, der     eine     mehrflügelige     Verschlussscheibe    besitzt, de  ren     zwischen    den     Flügeln    liegenden     Offnun-          gen    bis auf eine durch lichtdurchlässige, aber  die aktivischen Strahlen absorbierende Kör-    per überdeckt     sind.    Die     Versthlussscheibe     kann vorteilhaft so auf ihrer Welle     befestigt     sein,

   dass bei der Aufnahme die nicht be  deckte Öffnung     als    erste nach erfolgter Film  schaltung am     Bildfenster    vorübergeht.  



  Als Farbe der absorbierenden Körper       wird    vorteilhaft eine Lösung von     Aurantium     benutzt, denn die .damit erzielte Färbung ab  sorbiert die     violetten,    ultravioletten und  blauen,     .d.    h. die am meisten     aktivisch    wirken  den Strahlen.



      ginematogr aph for recording and playback. The invention relates to a cinematograph which can be used both for recording and for reproduction.



  It is known that the film switching and film downtimes, and consequently the darkening and exposure times, differ quite significantly in playback devices from those in recording devices. When reproducing, the aim is to make the downtime as long as possible and the switching time as short as possible in order to achieve a large amount of light.

   When taking pictures, on the other hand, the aim is to keep the exposure time as short as possible and therefore to keep the exposed file as short as possible, in order to obtain extremely sharp pictures. An apparatus that can be used equally well for recording and playback must actually be able to meet these contradicting conditions.



  According to the invention, this is achieved by a cinematograph which has a multi-wing closure disk, the openings of which between the wings are covered, apart from one, by a body which is transparent but absorbs the active rays. The locking disc can advantageously be attached to its shaft in such a way that

   that the uncovered opening is the first to pass the picture window after the film has been switched.



  A solution of aurantium is advantageously used as the color of the absorbent body, because the color obtained with it absorbs the violet, ultraviolet and blue, .d. H. the most active act the rays.

 

Claims (1)

PATENTANSPRUCH: Kinematograph, der sowohl zum Aufneh men, wie zum Vorführen brauchbar ist, ge kennzeichnet durch eine mehrflügelige Ver- schlussscheibe, ,deren zwischen den Flügeln liegenden Öffnungen bis. auf eine durch einen lichtdurchlässigen, aber die aktivischen Strahlen absorbierenden Körper überdeckt sind. PATENT CLAIM: A cinematograph that can be used both for recording and for demonstration, characterized by a multi-leaf shutter, the openings of which between the leaves are up to. are covered by a translucent body that absorbs the active rays.
CH108091D 1923-09-25 1923-09-25 Cinematograph for recording and playback. CH108091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH108091T 1923-09-25

Publications (1)

Publication Number Publication Date
CH108091A true CH108091A (en) 1924-12-01

Family

ID=4367084

Family Applications (1)

Application Number Title Priority Date Filing Date
CH108091D CH108091A (en) 1923-09-25 1923-09-25 Cinematograph for recording and playback.

Country Status (1)

Country Link
CH (1) CH108091A (en)

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