AT129963B - Projector projector for incident and transmitted light. - Google Patents

Projector projector for incident and transmitted light.

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Publication number
AT129963B
AT129963B AT129963DA AT129963B AT 129963 B AT129963 B AT 129963B AT 129963D A AT129963D A AT 129963DA AT 129963 B AT129963 B AT 129963B
Authority
AT
Austria
Prior art keywords
projector
incident
transmitted light
reflector
epidiascope
Prior art date
Application number
Other languages
German (de)
Inventor
Johann Selbitschka
Original Assignee
Johann Selbitschka
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 Johann Selbitschka filed Critical Johann Selbitschka
Application granted granted Critical
Publication of AT129963B publication Critical patent/AT129963B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Lichtbildwerfer für Auf-und Durchlicht. 



   Es ist bekannt, dass bei Epidiaskopen zum Übergang von einer Projektionsart zur andern das Verschieben von Lichtquelle und Reflektor bzw. auch der Beleuchtungslinse erforderlich ist. Bei dem Gegenstand der vorliegenden Erfindung wird ein Episkop in ein Epidiaskop verwandelt durch Entfernung eines Teiles der Gehäusevorderwand samt des ihm zugekehrten rückwärtigen Teiles des Lampenreflektors und durch Ansetzen eines Diaskopansatzes an die entstandene Öffnung der Gehäusevorderwand. 



   Die Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes. Fig. 1 zeigt den Apparat im Grundriss als Episkop, Fig. 2 stellt den Apparat als Epidiaskop im Grundriss dar. 



   Im Gehäuse 1 sind zwei Lampen 2 mit zweiteiligem Reflektor 3 in der Nähe der objektivseitigen Wand angeordnet, die das im Projektionsfenster der Rückwand befindliche Bild 4 beleuchten. Wird jener Teil der Vorderwand, der unmittelbar hinter der Lampe und dem Reflektor angeordnet ist und der das Ausstrahlen des Lichtes gegen die Wand verhindert, entfernt und an diese Stelle ein Diaskopansatz 5 gesetzt, so ist aus dem Episkop ein Epidiaskop geschaffen worden. Nun ist die Epilampe zu einer Epidialampe geworden, die gleichzeitig das Epi-und Diabild beleuchtet. Soll die Epiprojektion zeitlich von der Diaprojektion getrennt werden, so geschieht dies nicht durch Drehen der Lampe, sondern durch blosses Abdecken des Dia-bzw. Epiobjektivs. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Light projector for incident and transmitted light.



   It is known that in the case of epidiascopes it is necessary to move the light source and reflector or also the illumination lens in order to transition from one type of projection to another. In the subject matter of the present invention, an episcope is converted into an epidiascope by removing part of the front wall of the housing together with the rear part of the lamp reflector facing it and by attaching a diascope attachment to the opening in the front wall of the housing.



   The drawing is an embodiment of the subject matter of the invention. Fig. 1 shows the apparatus in plan as an episcope, Fig. 2 shows the apparatus as an epidiascope in plan.



   In the housing 1, two lamps 2 with a two-part reflector 3 are arranged in the vicinity of the objective-side wall, which illuminate the image 4 located in the projection window of the rear wall. If that part of the front wall which is arranged immediately behind the lamp and the reflector and which prevents the light from emitting against the wall is removed and a diascope attachment 5 is placed at this point, an epidiascope has been created from the episcope. The epilamp has now become an epidial lamp that simultaneously illuminates the epi and slide image. If the epiprojection is to be separated in time from the slide projection, this is not done by turning the lamp, but by simply covering the slide or slide. Epi lens.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Bildwerfer für Auflicht, der durch Ansetzen eines Diaansatzes in ein Epidiaskop verwandelt werden kann, dadurch gekennzeichnet, dass ein Teil der Gehäusevorderwand samt des ihm zugekehrten rückwärtigen Teiles des Reflektors der Lampe entfernt und durch einen Diaansatz ersetzt werden kann, wodurch jede Bewegung der Lichtquelle zusammen mit dem Reflektor vermieden wird. EMI1.1 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Projector for incident light, which can be transformed into an epidiascope by attaching a slide attachment, characterized in that part of the front wall of the housing together with the rear part of the reflector facing it can be removed and replaced by a slide attachment, whereby every movement of the light source together with the reflector is avoided. EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT129963D 1930-11-13 1930-11-13 Projector projector for incident and transmitted light. AT129963B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT129963T 1930-11-13

Publications (1)

Publication Number Publication Date
AT129963B true AT129963B (en) 1932-10-25

Family

ID=3636310

Family Applications (1)

Application Number Title Priority Date Filing Date
AT129963D AT129963B (en) 1930-11-13 1930-11-13 Projector projector for incident and transmitted light.

Country Status (1)

Country Link
AT (1) AT129963B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5085505A (en) * 1989-12-28 1992-02-04 Nipox Kabushiki Kaisha Overhead projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5085505A (en) * 1989-12-28 1992-02-04 Nipox Kabushiki Kaisha Overhead projector

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