DE382521C - Cinema projector with headlight lamp - Google Patents

Cinema projector with headlight lamp

Info

Publication number
DE382521C
DE382521C DEE29086D DEE0029086D DE382521C DE 382521 C DE382521 C DE 382521C DE E29086 D DEE29086 D DE E29086D DE E0029086 D DEE0029086 D DE E0029086D DE 382521 C DE382521 C DE 382521C
Authority
DE
Germany
Prior art keywords
lamp
cinema
lamp house
slide
headlight
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
DEE29086D
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.)
Ernemann Werke AG
Original Assignee
Ernemann Werke AG
Publication date
Priority to DEE29086D priority Critical patent/DE382521C/en
Application granted granted Critical
Publication of DE382521C publication Critical patent/DE382521C/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
    • 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
    • G03B21/145Housing details, e.g. position adjustments thereof

Landscapes

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

Description

P.\ τ ε ν τ -Ansprüc η ε :P. \ τ ε ν τ claims η ε:

ι. Kinoprojektor mit Scheinwerferlampe, gekennzeichnet durch ein an das Lampenhaus angelenktes Zusatzlampenhaus mit einer für die Diaprojektion geeigneten Lampe.ι. Cinema projector with a headlight lamp, marked by an an Additional lamp house hinged to the lamp house with one suitable for slide projection Lamp.

2. Kinoprojektor nach Anspruch 1, dadurch gekennzeichnet, daß das Zusatzlampenhaus an Stelle der einen Tür des Hauptlampenhauses tritt und das Türscharnier zum Befestigen des Zusatzlampenhauses dient.2. Cinema projector according to claim 1, characterized in that the additional lamp house in place of one door of the main lamp house and the door hinge for attaching the additional lamp house serves.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Die gleichmäßige Beleuchtung des Kinoschirmbildes bei Verwendung einer kondensorlosen Kinoseheinwerferlampe kommt in erster Linie dadurch zustande, daß entweder 'urch Deformation des Reflektorspiegels oder vorsätzliche Abweichungen des Kohlenabstandes von der Ellipsenbrennweite oder durch hinreichend große Ausdehnung des beleuchtenden Kraters die theoretisch unvermeidbare Schattenwirkung der positiven Kohle umgangen wird. Wollte man dieses Prinzip auf Diapositive der üblichen Formate anwenden, so würde der Reflektordurchmesser und die Ellipsenexzentrizität praktisch undurchführbare Größen annehmen. Es ist also zur Zeit unmöglich, die Scheinwerferlampe gleichzeitig zur Beleuchtung für Kino- und Diabilder zu verwenden, was aber ein großes Bedürfnis ist, da die modernen Kinoapparate alle mit einer Diaeinrichtung ausgerüstet sind.The even illumination of the cinema screen when using a condenserless Cinema headlamp comes about primarily because either 'urch Deformation of the reflector mirror or deliberate deviations in the carbon spacing of the elliptical focal length or by sufficiently large expansion of the illuminating Kraters circumvented the theoretically unavoidable shadow effect of the positive coal will. If you wanted to apply this principle to slides of the usual formats, you would the reflector diameter and the ellipse eccentricity are practically impracticable quantities accept. So it is currently impossible to use the headlight lamp at the same time as lighting to use for cinema and slide images, but this is a great need because the modern cinema sets are all equipped with a slide device. Diesem Alangel kann dadurch abgeholfen werden, daß das Lampenhaus mit der Scheinwerferlampe nur noch für Kinoprojektion Verwendung findet und ein Zusatzlampenhaus in geeigneter Weise angelenkt wird, das die Lampe für die Diaprojektion enthält.This Alangel can be remedied by the fact that the lamp house with the headlight lamp is only used for cinema projection and an additional lamp house is hinged in a suitable manner that contains the lamp for slide projection. In der Abbildung ist die Erfindung beispielsweise abgebildet, α ist das Kino-, h das Diaobjektiv, c ist das Lampenhaus mit der Scheinwerferlampe, währen 1 d :!as angelenkte Zusatzlampenhaus mit der für Diaprojektion geeigneten Lampe c darstellt, welches vorteilhafterweise an Stelle der Lampenhaustür an dem Scharnier f befestigt ist.In the figure, the invention is shown, for example, α is the cinema lens, h the slide lens, c is the lamp house with the headlight lamp, while 1 d :! As hinged additional lamp house with the lamp c suitable for slide projection, which advantageously takes the place of the lamp house door is attached to the hinge f . Das Zusatzlampenhaus kann einen besonderen Hitzeabzug bekommen oder auch mit dem Hauptlampenhaus in Verbindung stehen, so daß der Hitzeabzug für beide gemeinsam ist.The additional lamp house can get a special heat exhaust or with the main lamp house in connection, so that the heat exhaust for both in common is.
DEE29086D Cinema projector with headlight lamp Expired DE382521C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE29086D DE382521C (en) Cinema projector with headlight lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE29086D DE382521C (en) Cinema projector with headlight lamp

Publications (1)

Publication Number Publication Date
DE382521C true DE382521C (en) 1923-10-04

Family

ID=7073730

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE29086D Expired DE382521C (en) Cinema projector with headlight lamp

Country Status (1)

Country Link
DE (1) DE382521C (en)

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