DE497667C - Cinema playback device with optical compensation for image migration and a display instrument for film shrinkage - Google Patents

Cinema playback device with optical compensation for image migration and a display instrument for film shrinkage

Info

Publication number
DE497667C
DE497667C DEZ17769D DEZ0017769D DE497667C DE 497667 C DE497667 C DE 497667C DE Z17769 D DEZ17769 D DE Z17769D DE Z0017769 D DEZ0017769 D DE Z0017769D DE 497667 C DE497667 C DE 497667C
Authority
DE
Germany
Prior art keywords
display instrument
optical compensation
film shrinkage
playback device
shrinkage
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
DEZ17769D
Other languages
German (de)
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Priority to DEZ17769D priority Critical patent/DE497667C/en
Application granted granted Critical
Publication of DE497667C publication Critical patent/DE497667C/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
    • G03B41/00—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor
    • G03B41/02—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film
    • G03B41/04—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)

Description

Kinowiedergabeapparat mit optischem Ausgleich der Bildwanderung und einem Anzeigeinstrument für die Filmschrumpfung Wenn bei einem Kinoapparat mit optischem Ausgleich eine Unschärfe auf dem Projektionsschirm auftritt, läßt sich nicht ohne weiteres feststellen, ob dies von einer Fehleinstellung des Projektionsobjektivs herrührt oder aber ob der Film unscharf aufgenommen oder letzten Endes die Filmschrumpfung schuld ist.Cinema playback device with optical compensation for image migration and an indicator for the film shrinkage Compensation for blurring on the projection screen cannot be avoided further determine whether this is due to a misalignment of the projection lens originates or whether the film was recorded blurred or ultimately the film shrinkage is to blame.

Um dem Vorführer das letztere anzuzeigen, wird bekanntermaßen durch das Filmband ein Zeigerinstrument betätigt, welches die Filmschrumpfung anzeigt, und zwar eiitweder in Prozenten oder in relativen Werten.In order to indicate the latter to the presenter, it is known to use the film tape operates a pointer instrument which shows the film shrinkage, either in percentages or in relative values.

Ebenso sind bereits Vorrichtungen zur Korrektion der Filmschrumpfung vorgeschlagen worden, die entweder von Hand oder automatisch bedient werden.Devices for correcting film shrinkage are also already in place have been proposed that are operated either manually or automatically.

Um nun an dein Schrumpfungsanzeiger gleidrzeitig erkennen zu kdnn.en, in welcher Lage sich die Vorrichtung zur horrektion der Schrumpfung befindet bzw. in welchem Maße die Korrektion bereits stattgefunden hat, .ist erfindungsgemäß das Anzeigeinstruinent für die Filmschrumpfung mit der Vorrichtung zu deren Korrektion verbunden und betätigt dort einen weiteren Zeiger. Man kann diese Anordnung so treffen, dafa sich die Zeiger bei restlos korrigierter Schrumpfung decken.In order to be able to recognize your shrinkage indicator at the same time, in which position is the device for horrection of the shrinkage or the extent to which the correction has already taken place is that according to the invention Display instrument for the film shrinkage with the device for its correction connected and operated there another pointer. This arrangement can be made dafa the hands coincide with completely corrected shrinkage.

Claims (1)

PATENTANSPRÜCHE: i. Kinowiedergabeapparat mit optischem Ausgleich der Bildwanderung und einem Anzeigeinstrument für die Fil.-nschrumpfung, dadurch gekennzeichnet, daß das Anzeigeinstrument mit dem an sich bekannten Schrumpfungskorrektionsmittel verbunden ist. z. Kinowiedergabeapparat nach Anspruch i, dadurch gekennzeichnet, daß das Anzeigeinstrument einen zweiten Zeiger trägt, welcher angibt, in welcher Lage das Schrumpfungskorrektionsinittel steht. 3. Anzeigeinstrument nach Anspruch i und 2, dadurch :gekennzeichnet, daß sich die beiden Zeiger decken, falls die Filmschrumpfung korrigiert ist. PATENT CLAIMS: i. Cinema playback apparatus with optical compensation of the image wandering and a display instrument for the film shrinkage, characterized in that the display instrument is connected to the shrinkage correction means known per se. z. Cinema playback apparatus according to Claim i, characterized in that the display instrument carries a second pointer which indicates the position in which the shrinkage correction means is. 3. Indicating instrument according to claim i and 2, characterized in that the two pointers coincide if the film shrinkage is corrected.
DEZ17769D 1928-08-18 1928-08-18 Cinema playback device with optical compensation for image migration and a display instrument for film shrinkage Expired DE497667C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ17769D DE497667C (en) 1928-08-18 1928-08-18 Cinema playback device with optical compensation for image migration and a display instrument for film shrinkage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ17769D DE497667C (en) 1928-08-18 1928-08-18 Cinema playback device with optical compensation for image migration and a display instrument for film shrinkage

Publications (1)

Publication Number Publication Date
DE497667C true DE497667C (en) 1930-05-09

Family

ID=7624396

Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ17769D Expired DE497667C (en) 1928-08-18 1928-08-18 Cinema playback device with optical compensation for image migration and a display instrument for film shrinkage

Country Status (1)

Country Link
DE (1) DE497667C (en)

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