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DE357102C - Method for the precise adjustment of the optical axis of cinematographic demonstration apparatus - Google Patents

Method for the precise adjustment of the optical axis of cinematographic demonstration apparatus

Info

Publication number
DE357102C
DE357102C DEH81117D DEH0081117D DE357102C DE 357102 C DE357102 C DE 357102C DE H81117 D DEH81117 D DE H81117D DE H0081117 D DEH0081117 D DE H0081117D DE 357102 C DE357102 C DE 357102C
Authority
DE
Germany
Prior art keywords
condenser
optical axis
cinematographic
precise adjustment
demonstration apparatus
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
DEH81117D
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.)
CARL HOFFMEISTER
Original Assignee
CARL HOFFMEISTER
Publication date
Priority to DEH81117D priority Critical patent/DE357102C/en
Application granted granted Critical
Publication of DE357102C publication Critical patent/DE357102C/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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microscoopes, Condenser (AREA)

Description

Carl Hoffmeister in Pforzheim.Carl Hoffmeister in Pforzheim.

Verfahren zum genauen Einstellen der optischen Achse kinematographischer Vorführungsapparate.Method for precisely setting the optical axis cinematographic projection apparatus.

Patentiert im Deutschen Reiche vom 28. Mai 1920 ab.Patented in the German Empire on May 28, 1920.

Die Erfindung betrifft ein Verfahren zum genauen Einstellen der optischen Achse von Kondensor zum Bildfenster und Objektiv bei kinematographischen Vorführungsapparaten. Das neue Verfahren bedient sich einer Anzahl Zentrierscheiben, welche in den Kondensor, das Bildfenster und den Objektivhalter eingesetzt werden, worauf die achsiale Richtung in beiden Ebenen durch eine hindurchgesteckte Zentrierstange ermittelt wird. Zu diesem Zweck ist der Kondensor in achsialer und horizontaler Richtung einstellbar und der Objektivhalter in einem Kreuzgelenk nach allen Richtungen beweglich aufgehängt.
In der Zeichnung bedeutet« das Lampenhaus, an welches in einem Gelenk b der sogenannte Kondensor c einseitig angeschlossen ist. Die senkrechten Seitenwandungen des Kondensors c sind auf ihren Innenflächen mit einer Anzahl parallel zueinander verlaufender Nuten d versehen, in welchen die von oben hereinschiebbaren Linsenträger e auswechselbar geführt sind, so daß sie beliebig gegeneinander verstellt werden können. Mittels SS5 einer Schraube f kann die achsiale Richtung des Kondensors c geregelt werden, g ist das Bildfenster, h der Ob j ektivhalter, der in einem Kreuzgelenk i allseitig beweglich am Tragarm k hängt, I ist die Projektionswand. Soll der Apparat genau eingestellt werden, so daß die optische Achse vom Kondensor c durch die Brennpunkte der Linsen, das Kreuz des Bildfensters zum Objektiv in einer in beiden Ebenen liegenden geraden Linie zusammenfällt, so werden, nachdem zuvor die Linsen des Kondensors c und das Objektivglas aus «lern Objektivhalter h herausgenommen worden sind, entsprechende Zentrierscheiben eingesetzt, das sind solche Scheiben, die mit einer gleichartigen Bohrung von der Größe des Durchmessers der Zentrier stange ζ versehen sind.
The invention relates to a method for precisely adjusting the optical axis of the condenser to the image window and objective in cinematographic demonstration apparatus. The new method makes use of a number of centering disks, which are inserted into the condenser, the image window and the lens holder, whereupon the axial direction in both planes is determined by a centering rod inserted through it. For this purpose, the condenser can be adjusted axially and horizontally and the lens holder is suspended in a universal joint so that it can move in all directions.
In the drawing means “the lamp house to which the so-called condenser c is connected on one side in a joint b. The vertical side walls of the condenser c are provided on their inner surfaces with a number of mutually parallel grooves d in which the lens carriers e , which can be pushed in from above, are interchangeably guided so that they can be adjusted against each other as required. The axial direction of the condenser c can be regulated by means of SS 5 of a screw f , g is the image window, h the objective holder, which hangs on the support arm k in a universal joint i so that it can move in all directions, I is the projection screen. If the apparatus is to be set precisely so that the optical axis from the condenser c through the focal points of the lenses, the cross of the image window to the lens coincides in a straight line lying in both planes, after the lenses of the condenser c and the lens glass from «lern lens holder h have been removed, corresponding centering disks are used, these are disks that are provided with a similar hole the size of the diameter of the centering rod ζ .

Die Zentrierstange ζ wird zunächst durch die Zentrierscheibe im Objektivhalter h, dann durch diej enige des Bildfensters g und endlieh durch die des Kondensors c unter gleichzeitigem Einregeln von Kondensor c und Obj ektivhalter h hindurchgesteckt und so die gemeinsame achsiale Richtung dieser Teile unter sich erzielt. Sind Kondensor c und Objektivhalter h in dieser einregulierten Lage gegen ein Verstellen oder Ausweichen festgelegt, so wird die Zentrierstange s wieder herausgenommen, die Zentrierscheiben aus Kondensor, Bildfenster und Objektivhalter entfernt und durch die Linsen und das Objektivglas ersetzt, wodurch der Apparat betriebsfähig ist.The centering rod ζ is first inserted through the centering disk in the lens holder h, then through that of the image window g and finally through that of the condenser c while simultaneously adjusting the condenser c and the lens holder h , thus achieving the common axial direction of these parts. If the condenser c and objective holder h are fixed in this regulated position to prevent adjustment or evasion, the centering rod s is removed again, the centering disks from the condenser, image window and objective holder are removed and replaced by the lenses and the objective glass, whereby the apparatus is operational.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zum genauen Einstellen der optischen Achse von Kondensor zum Bildfenster und Objektiv bei kinematographischen Vorführungsapparaten, dadurch gekennzeichnet, daß nach Entfernung der Kondensorlinsen und des Objektivs aus dem Objektivhalter Zentrierscheiben in den achsial und wagerecht einstellbaren Kondensor (c), das Bildfenster (g) und in den in einem Kreuzgelenk (i) allseitig beweglich aufgehängten Objektivhalter Qi) eingesetzt werden, die achsial durchbohrt sind, und daß dann eine Zentrierstange (0), deren Durchmesser dem Durchmesser des Loches der Zentrierscheiben entspricht, durch diese Löcher unter gleichzeitigem Verschieben der Kondensorfassung und des Objektivhalters hindurchgesteckt wird.Method for the precise adjustment of the optical axis of the condenser to the picture window and lens in cinematographic demonstration apparatus, characterized in that after removing the condenser lenses and the objective from the objective holder, centering disks are placed in the axially and horizontally adjustable condenser (c) , the picture window (g) and in the lens holder Qi) , which is suspended in a universal joint (i) and is moveable on all sides, which are axially pierced, and then a centering rod (0), the diameter of which corresponds to the diameter of the hole in the centering disks, through these holes while simultaneously moving the condenser mount and the Lens holder is inserted through. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DEH81117D Method for the precise adjustment of the optical axis of cinematographic demonstration apparatus Expired DE357102C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH81117D DE357102C (en) Method for the precise adjustment of the optical axis of cinematographic demonstration apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH81117D DE357102C (en) Method for the precise adjustment of the optical axis of cinematographic demonstration apparatus

Publications (1)

Publication Number Publication Date
DE357102C true DE357102C (en) 1922-08-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEH81117D Expired DE357102C (en) Method for the precise adjustment of the optical axis of cinematographic demonstration apparatus

Country Status (1)

Country Link
DE (1) DE357102C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031922A (en) * 1957-08-01 1962-05-01 Stadler George Direct color enlarging apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031922A (en) * 1957-08-01 1962-05-01 Stadler George Direct color enlarging apparatus

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