DE327193C - Lighting device for cinema sets with optical compensation for image migration - Google Patents

Lighting device for cinema sets with optical compensation for image migration

Info

Publication number
DE327193C
DE327193C DE1918327193D DE327193DD DE327193C DE 327193 C DE327193 C DE 327193C DE 1918327193 D DE1918327193 D DE 1918327193D DE 327193D D DE327193D D DE 327193DD DE 327193 C DE327193 C DE 327193C
Authority
DE
Germany
Prior art keywords
optical compensation
lighting device
lens
image migration
cinema
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
DE1918327193D
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.)
HANS F KLEINSCHMIDT
Original Assignee
HANS F KLEINSCHMIDT
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 HANS F KLEINSCHMIDT filed Critical HANS F KLEINSCHMIDT
Application granted granted Critical
Publication of DE327193C publication Critical patent/DE327193C/en
Expired legal-status Critical Current

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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
    • G03B41/12—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator with oscillating transmitting member

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Description

Nachstehend beschriebene Beleuchtungsvorrichtung für Kinoapparate mit optischem Ausgleich] der Bildwanderung eignet sich für die Apparate, bei denen das Objektiv eine achsiale häini und her gehende Bewegung ausführt. The lighting device described below for cinema sets with optical compensation] of the image wandering is suitable for those sets in which the lens performs an axial, reciprocating movement.

Würde man, wie bisher, de» stetig fortbewegten Film durch! einen aus dem Kondensor austretenden feststehenden Lichtkegel beleuchten, so müßte sein Durchmesser an der Stelle des Filmbildes I1Z2 mal und sein Flächeninhalt über doppelt so groß sein, als zur Beleuchtung eines feststehenden Filmbildes erforderlich wäre, weil er die Fläch'e zweierIf, as before, one would go through the steadily moving film! illuminate an emerging from the condenser fixed beam, its diameter at the location of the film image would I 1 Z 2 times and its surface area to be about twice as large as would be required to illuminate a stationary film image, because he two the Fläch'e

iS aufeinanderfolgender Filmbilder beleuchten muß. Man brauchte in diesem Falle also mehr als die doppelte Lichtstärke, um dieselbe Helligkeit auf der ProjektionisflächJe zu erzielen·. Für tadellose Bildvor führung wirdIlluminate consecutive film frames got to. In this case, therefore, more than twice the light intensity was needed to achieve the same To achieve brightness on the projection surface ·. For impeccable image presentation

so ferner gefordert, daß die Spitze des Lichtkegels mit der Mitte des Objektivsystems zu-■sammienfällt. Dieses ist unmöglich! bei der Verbindung eines feststehenden Lichtkegels, wie bisher, mit einem in aohsialer Richtungso further demanded that the tip of the light cone coincides with the center of the ■ lens system. This is impossible! in the Connection of a fixed cone of light, as before, with one in the aohsial direction

z5 verschiebbaren, Objektiv.z5 sliding, lens.

Beide Übelstände werden,= durch· diese neue Einrichtung beseitigt.Both evils become, = through this new one Establishment eliminated.

Die Figur zeigt die neue Beleuchtungsvorrichtung mit dem Strahlengang einer punkt-The figure shows the new lighting device with the beam path of a point

jo förmig angenommenen Lichtquelle.jo shape assumed light source.

Von der Lichtquelle α gehen- die Lichtstrahlen durch einen Kondensor b, wie bisher üblich, und werden dann durch die verschiebbar angeordnete Zerstreuungslinse c zu iFrom the light source α, the light rays pass through a condenser b, as has been the case up to now, and then become i through the displaceably arranged diverging lens c

parallelen · Strahlenbündel von passendem Durchmesser zusammengefaßt.parallel · bundles of rays from matching Summarized diameter.

Durch die Spiegel d und e wird das Strahlenbündel zweimal rechtwinklig umgeknickt und dadurch dem oberhalb des horizontalen Biidfenisters f angeordneten Objektivsystem g zugeführt.The bundle of rays is bent twice at right angles by the mirrors d and e and is thereby fed to the objective system g arranged above the horizontal image window f.

Zwischen den. Spiegein d und e ist die Sammellinse h angeordnet, die dem Objektivsystem g gegenüber wie der sonst allein übliche Kondensor wirkt. Das ObjektivrohJri ist fest mit der prismatischen Kammer k verbunden, in der die Spiegel d und e und die Sammellinse h unverrückbar befestigt sind.Between. The converging lens h is arranged in mirrors d and e and acts like the condenser, which is otherwise common only, with respect to the objective system g. The objective tube is firmly connected to the prismatic chamber k , in which the mirrors d and e and the converging lens h are fixed immovably.

Die Kammer k ist genügend breit herzustellen, so daß das Bildfenster oder der Filmführungskanal f durch seitliche Öffnungen frei hindurchgehen kann. Oder Oberteil und Unterteil sind zwar jeder für sich hergestellt und1 durch dien Filmführungskanal getrennt, aber durch! diesen übergreifende seitliche, zweckmäßig leicht lösbare Bügel fest miteinander verbunden.The chamber k is to be made sufficiently wide so that the picture window or the film guide channel f can freely pass through lateral openings. Or upper part and lower part are indeed each made for himself and one separated by acting movie guide channel, but through! this overlapping lateral, appropriately easily detachable bracket firmly connected to one another.

Der Hin,·- und Hergang des; Objektivsystems g parallel dem Filmbande I ist bei dieser Beleuchtungsvorrichtung ohne Einfluß auf den Strahlengang im Objektivtsystem, sobald ein paralleles Strahlenbündel auf den, Spiegel d fällt,' und ebensowenig wird der Strahlengang durch Änderung des Abstandes der Lampe.«, des Kondensors To1 oder des ganzen Lampenkastenis vom Filmbilde verändert.The back and forth of the; The objective system g parallel to the film band I has no influence on the beam path in the objective system in this lighting device as soon as a parallel beam of rays falls on the 'mirror d ,' and the beam path is also not changed by changing the distance from the lamp, the condenser To 1 or the whole lamp box changed from the film image.

■•Durch Verschieben der Lichtquelle a oder der Zerstreuungslinse 0 ist es jetzt sehr leicht,■ • By moving the light source a or the diverging lens 0 it is now very easy to

ein paralleles Strahlenbündel von passendem Durchmesser zu erzeugen, da dieses auf seiner ganzen Länge von c his d frei sichtbar ist.to generate a parallel bundle of rays of suitable diameter, since this is freely visible along its entire length from c to d.

Claims (2)

Patent- Ansprüche :Patent claims: i. Befeuchtungsvorrichtung für Kinoapparate mit optischem Ausgleiche der Biidiwanderung1, bei denen das Objektiv eine achsiale hin und her gehende Bewegung ausführt und die aus dem Kondensor austretenden konvergenten Strahlen durch ein zerstreuendes Linsensystem parallel gemacht werden, dadurch gekennzeichnet, daß das Objektivrohr (ϊ) mit einer Kammer (k) fest verbunden ist, worin, zwei Spiegelvorrichtungen (d, e) und' ein Sammellinsensystem angeordnet sind,i. Humidifier for cinema apparatus with optical compensation of the image migration 1 , in which the lens executes an axial back and forth movement and the convergent rays emerging from the condenser are made parallel by a diffusing lens system, characterized in that the lens tube (ϊ) with a chamber (k) is firmly connected, in which, two mirror devices (d, e) and a collecting lens system are arranged, 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kammer (k) auis zwei durch das Bildfenster oder den Eilmführungskanal (/) . getrennten Hälften besteht, die durch übergreifende seitliche, zweckmäßig leicht lösbare Bügel fest miteinander verbunden sind.2. Apparatus according to claim 1, characterized characterized in that the chamber (k) auis two through the picture window or the express guide channel (/). separated There are halves, which by overlapping lateral, appropriately easily detachable bracket are firmly connected to each other. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DE1918327193D 1918-04-03 1918-04-03 Lighting device for cinema sets with optical compensation for image migration Expired DE327193C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE327193T 1918-04-03

Publications (1)

Publication Number Publication Date
DE327193C true DE327193C (en) 1920-10-08

Family

ID=6184698

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1918327193D Expired DE327193C (en) 1918-04-03 1918-04-03 Lighting device for cinema sets with optical compensation for image migration

Country Status (1)

Country Link
DE (1) DE327193C (en)

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