DE517663C - Projection optics for color cinematography - Google Patents

Projection optics for color cinematography

Info

Publication number
DE517663C
DE517663C DEF68394D DEF0068394D DE517663C DE 517663 C DE517663 C DE 517663C DE F68394 D DEF68394 D DE F68394D DE F0068394 D DEF0068394 D DE F0068394D DE 517663 C DE517663 C DE 517663C
Authority
DE
Germany
Prior art keywords
lenses
projection optics
color cinematography
parallel
film
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
DEF68394D
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE517663C publication Critical patent/DE517663C/en
Expired legal-status Critical Current

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
    • G03B33/00Colour photography, other than mere exposure or projection of a colour film

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Description

Projektionsoptik für Farbenkinematographie Die 1,-,rfindtuig bezieht sieh auf eine Projektionsvorriclitung für Farbenkinematographie mit drei Objektiven, die in einer parallel zur Bewegungsrichtung des Films iier;enden Richtung angeordnet sind.Projection optics for color cinematography The 1, -, rfindtuig relates see a projection device for color cinematography with three lenses, arranged in a direction parallel to the moving direction of the film are.

Es ist bekannt, den Abstand der beiden äußeren Objektive vom mittleren dadurch zu verändern, daß die Fassungen der äußeren Objektive um Zapfen ausschwingen, die par-<illel zur Projektionsrichtung liegen.It is known the distance between the two outer lenses and the middle one to be changed by the fact that the mounts of the outer lenses swing out around pegs, the par- <illel to the direction of projection.

Bei diesen bekannten Vorrichtungen sind die Schwingzapfen in einem Abstand voneinander angeordnet, der sehr viel größer ist als der zwischen den optischen Mitten dieser beiden äußeren Objektive. Hieraus ergibt sich der Nachteil, daß die optischen Mitten der äußeren Objektive bei ihrem Ausschwingen wesentlich von der Bewegungsrichtung des Films abweichen.In these known devices, the pivot pins are in one Spaced apart, which is much greater than that between the optical In the middle of these two outer lenses. This has the disadvantage that the optical centers of the outer lenses when they swing out significantly from the Direction of movement of the film differ.

Um diesem Übelstand abzuhelfen, wird erfindungsgemäß der Abstand der Schwingzapfen in der Richtung parallel zur Bewegungsrichtung des Films gleich demjenigen zwischen den .optischen Mitten der äußeren Objektive gemacht, wenn sich diese in ihrer Mittellage befinden.In order to remedy this drawback, according to the invention the distance is the Swing pin in the direction parallel to the direction of movement of the film is the same as that between the .optical centers of the outer lenses, when these are in their central position.

Claims (1)

PATENTANSPRUCI1_ Projektionsvorrichtung für Farbenkinematographie mit drei Objektiven, die in einer parallel zur Bewegungsrichtung des Films liegenden Richtung so angeordnet sind, daß der Abstand der beiden äußeren Objektive von dein mittleren verändert «-erden kann, indem die Fassungen der Objektive um Zapfen, die parallel zur Projektionsrichtung liegen, ausschwingen, dadurch gekennzeichnet, daß der Abstand dieser Zapfen in der Richtung parallel zur Bewegungsrichtung des Films gleich dem Abstand ist, auf dem die optischen Mitten der äußeren Objektive in ihrer Mittellage sich befinden.PATENTANSPRUCI1_ Projection device for color cinematography with three lenses in a parallel to the direction of movement of the film Direction are arranged so that the distance between the two outer lenses of your middle changed «-Earth can be done by placing the mounts of the lenses around pegs that lie parallel to the direction of projection, swing out, characterized in that the spacing of these pegs in the direction parallel to the direction of movement of the film is equal to the distance at which the optical centers of the outer lenses in their Central position.
DEF68394D 1928-05-16 1929-05-16 Projection optics for color cinematography Expired DE517663C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE517663X 1928-05-16

Publications (1)

Publication Number Publication Date
DE517663C true DE517663C (en) 1931-02-06

Family

ID=3871255

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF68394D Expired DE517663C (en) 1928-05-16 1929-05-16 Projection optics for color cinematography

Country Status (1)

Country Link
DE (1) DE517663C (en)

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