DE337657C - Method and device for moving lenses of a cinema projector that move on an endless chain - Google Patents

Method and device for moving lenses of a cinema projector that move on an endless chain

Info

Publication number
DE337657C
DE337657C DENDAT337657D DE337657DD DE337657C DE 337657 C DE337657 C DE 337657C DE NDAT337657 D DENDAT337657 D DE NDAT337657D DE 337657D D DE337657D D DE 337657DD DE 337657 C DE337657 C DE 337657C
Authority
DE
Germany
Prior art keywords
lenses
endless chain
bearings
cinema projector
move
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
DENDAT337657D
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.)
JOSEF HREBICEK
Original Assignee
JOSEF HREBICEK
Publication date
Application granted granted Critical
Publication of DE337657C publication Critical patent/DE337657C/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
    • G03B41/08—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator with rotating transmitting member

Description

Gegenstand der Erfindung ist ein Verfahren zur Bewegung von auf endloser Kette geradlinig wandernden Objektiven eines Kinoprojektors, bei welchem die Bewegungsebene der Objektive parallel zu deren optischen Achsen liegt, wobei dieses beispielsweise dadurch erreicht werden kann, daß die Objektive mit Kurbeln fest verbunden sind, die in beiden Enden in Lagern- drehbar angeordnet ίο sind, wobei die Läger an je .einem über parallel gelagerte Scheiben· umlaufenden Stahlbande befestigt sind; und zwar derart, daß die Hauptebenen der Objektive dauernd sich parallel bleiben. Unter Bewegungsebene ist hier jene Ebene verstanden, in der irgendein beliebiger fester Punkt eines Objektivs seinen Umlauf vollzieht.The invention relates to a method for moving on an endless chain rectilinear moving lenses of a cinema projector, in which the plane of motion of the objectives is parallel to their optical axes, this for example thereby can be achieved that the lenses are firmly connected with cranks that in Both ends are rotatably arranged in bearings ίο, the bearings at each .einem over parallel-mounted disks are attached to circumferential steel bands; in such a way, that the main planes of the lenses remain permanently parallel. Below movement level is understood here as the plane in which any arbitrary fixed point of an objective completes its circulation.

Die Erfindung ist in einer beispielsweisen Ausführungsform in den beigefügten Zeichao nungen veranschaulicht,' und zwar zeigt:The invention is shown in an exemplary embodiment in the accompanying drawings illustrated, 'namely shows:

Fig. ι eine derartige Einrichtung in Vorderansicht, Fig. Ι such a device in front view,

Fig. 2 in Seitenansicht,
Fig. 3 in Aufsieht, während Fig. 4 die Einrichtung schaubildlich darstellt. Fig. 2 in side view,
Fig. 3 is looking up, while Fig. 4 shows the device diagrammatically.

Wie aus der Zeichnung ersichtlich, ist gemäß der vorliegenden Ausführungsform in der Art und Weise vorgegangen worden, daß die Bewegungsobjektive L1, L2 bis L8 mittels Kurbeln ο fest verbunden sind, die einerseits in Lagern p, anderseits in Lagern q drehbar gelagert sind. Die Lager p sind an einem endlosen Träger, etwa einem Stahlbandes befestigt, das über die Scheiben) M geführt ist, während die Lager q an einem zweiten ebensolchen Träger, etwa an dem Stahlband?»1, angebracht sind, welches parallel mit dem Stahlband η auf den Scheiben M1 umläuft. As can be seen from the drawing, according to the present embodiment, the procedure was that the motion objectives L 1 , L 2 to L 8 are firmly connected by means of cranks o , which are rotatably mounted on the one hand in bearings p, on the other hand in bearings q . The bearings p are attached to an endless carrier, for example a steel belt, which is guided over the disks) M , while the bearings q are fastened to a second carrier of the same kind, for example to the steel belt? » 1 , which runs parallel to the steel belt η on the disks M 1 .

Wird eine Scheibe in Bewegung versetzt, so wird mittels der Kurbelverbindung die ganze Einrichtung, also auch die Objektive U, U bis L8, in übereinstimmende Bewegung versetzt, wobei die Objektive ihre lotrechte Lage unverändert während des ganzen Umlaufes beibehalten und daher die von ihnen vollführte Bewegung eine ununterbrochen fortschreitende bleibt.If a disk is set in motion, the entire device, including the lenses U, U to L 8 , is set in matching motion by means of the crank connection, the lenses maintaining their vertical position unchanged during the entire revolution and therefore the position they performed Movement remains an uninterrupted progressive one.

Claims (2)

Patent-Ansprüche :Patent Claims: 1. Verfahren zur Bewegung von auf endloser Kette geradlinig wandernden Objektiven eines Kinoprojektors mit optischem Ausgleich der Bildwanderung, dadurch gekennzeichnet, daß die Objektive so bewegt werden, daß ihre Bewegungsebene parallel zu den optischen Achsen liegt.1. Method of moving in a straight line on an endless chain Lenses of a cinema projector with optical compensation for image wandering, characterized in that the lenses be moved so that their plane of movement is parallel to the optical Axes lies. 2. Vorrichtung zum Ausüben des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß die Objektive (L1, L2 bis L8) mit Kurbeln (σ), die in beiden. Enden in Lagern (p und q) drehbar angeordnet sind, fest verbunden sind, wobei die Lager an je einem über parallel gelagerte Scheiben (M, M1) umlaufenden Stahlbande (n, n1) befestigt sind, derart, daß die Hauptebenen der Objektive dauernd zu sich parallel bleiben.2. Apparatus for practicing the method according to claim 1, characterized in that the objectives (L 1 , L 2 to L 8 ) with cranks (σ) in both. Ends in bearings (p and q) are rotatably arranged, are firmly connected, the bearings each being attached to a steel band (n, n 1 ) rotating over parallel disks (M, M 1 ) , in such a way that the main planes of the lenses stay parallel to yourself all the time. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT337657D Method and device for moving lenses of a cinema projector that move on an endless chain Expired DE337657C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE337657T

Publications (1)

Publication Number Publication Date
DE337657C true DE337657C (en) 1921-06-07

Family

ID=6221702

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT337657D Expired DE337657C (en) Method and device for moving lenses of a cinema projector that move on an endless chain

Country Status (1)

Country Link
DE (1) DE337657C (en)

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