AT148285B - Roll film camera with built-in photoelectric light meter. - Google Patents

Roll film camera with built-in photoelectric light meter.

Info

Publication number
AT148285B
AT148285B AT148285DA AT148285B AT 148285 B AT148285 B AT 148285B AT 148285D A AT148285D A AT 148285DA AT 148285 B AT148285 B AT 148285B
Authority
AT
Austria
Prior art keywords
roll film
film camera
built
measuring instrument
light meter
Prior art date
Application number
Other languages
German (de)
Original Assignee
Zeiss Ikon Ag
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 Zeiss Ikon Ag filed Critical Zeiss Ikon Ag
Application granted granted Critical
Publication of AT148285B publication Critical patent/AT148285B/en

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  • Exposure Control For Cameras (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Rollfilmkamera mit eingebautem   photoelektrischeu   Belichtungsmesser. 



   Bei Rollfilmkameras mit eingebautem photoelektrischen Belichtungsmesser ist es infolge des   beschränkten   Raumes ; welcher im Innern der Kamera zur Verfügung steht, äusserst schwierig, das viel Platz beanspruchende Messinstrument für den photoelektrischen Belichtungsmesser in der Kamera unterzubringen. Man ist daher bestrebt, das Messinstrument   möglichst   im toten Raume der Kamera anzuordnen, um das Volumen des Kameragehäuses nicht unnötig zu vergrössern. 



   Die Erfindung sieht zu diesem Zwecke eine Anordnung des Messinstrumentes im Kameragehäuse vor, u. zw. zwischen Objektivverschluss und Bildbühne. Das Messinstrument, welches hufeisenförmige oder ringförmige Gestaltung besitzt, kommt somit um den Strahlengang des Objektivs herum zu liegen. 



  Durch eine solche Anordnung wird es auf einfache Art und Weise ermöglicht, die Ablesung des Messinstrumentes von oben her durch ein im Kameragehäuse vorgesehenes Fenster vorzunehmen. Die Lagerung des Zeigers des Messinstrumentes erfolgt zweckmässig in der Weise, dass die drehbare Achse des Zeigers eine vertikale Lage einnimmt. 



   In der Zeichnung ist in den Fig. 1 und 2 die Anordnung des Messinstrumentes des photoelektrischen Belichtungsmessers dargestellt. 1 ist das Kameragehäuse,   : 2   ist das Aufnahmeobjektiv, 3 ist der Objektivverschluss, 4 ist die Bildbühne und 5 der Feldmagnet des photoelektrischen Belichtungsmessers. Am Anker des Drehspulinstrumentes ist der Zeiger 6 befestigt. Derselbe wird durch eine auf der oberen Schmalseite der Kamera angebrachte Schauöffnung 7 dem Auge des Beobachters sichtbar gemacht. 



  Nach einer Skala 8 wird die jeweilige Stellung des Zeigers des Messinstrumentes festgestellt. 



   PATENT-ANSPRÜCHE :
1. Rollfilmkamera mit eingebautem photoelektrischen Belichtungsmesser, dadurch   gekenn-   zeichnet, dass das Messinstrument des Belichtungsmessers im Innern der Kamera koaxial zur optischen Achse des Aufnahmeobjektivs angeordnet ist. 

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



   <Desc / Clms Page number 1>
 



  Roll film camera with built-in photoelectric light meter.



   In roll film cameras with built-in photoelectric exposure meters, it is because of the limited space; which is available inside the camera, it is extremely difficult to accommodate the measuring instrument for the photoelectric light meter, which takes up a lot of space, in the camera. The aim is therefore to arrange the measuring instrument in the dead space of the camera as far as possible in order not to unnecessarily increase the volume of the camera housing.



   The invention provides for this purpose an arrangement of the measuring instrument in the camera housing, u. between the lens shutter and the picture stage. The measuring instrument, which has a horseshoe-shaped or ring-shaped design, thus comes to lie around the beam path of the objective.



  Such an arrangement makes it possible in a simple manner to read the measuring instrument from above through a window provided in the camera housing. The pointer of the measuring instrument is expediently supported in such a way that the rotatable axis of the pointer assumes a vertical position.



   In the drawing, the arrangement of the measuring instrument of the photoelectric exposure meter is shown in FIGS. 1 and 2. 1 is the camera body,: 2 is the taking lens, 3 is the lens shutter, 4 is the image stage, and 5 is the field magnet of the photoelectric light meter. The pointer 6 is attached to the armature of the moving coil instrument. The same is made visible to the eye of the observer through a viewing opening 7 made on the upper narrow side of the camera.



  The respective position of the pointer of the measuring instrument is determined on a scale 8.



   PATENT CLAIMS:
1. Roll film camera with built-in photoelectric exposure meter, characterized in that the measuring instrument of the exposure meter is arranged in the interior of the camera coaxially to the optical axis of the taking lens.

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

 

Claims (1)

2. Rollfilmkamera nach Anspruch 1, dadurch gekennzeichnet, dass das Messinstrument zwischen Objektivverschluss (. 3) und Bildbühne (4) gelagert ist. 2. Roll film camera according to claim 1, characterized in that the measuring instrument is mounted between the lens shutter (3) and the image stage (4). 3. Rollfilmkamera nach Anspruch 1, dadurch gekennzeichnet, dass die Achse des Zeigers (6) EMI1.1 4. Rollfilmkamera nach Anspruch 1, dadurch gekennzeichnet, dass an der oberen Schmalseite der Kamera eine Schauöffnung (7) vorgesehen ist, durch welche der Zeiger (6) des Messinstrumentes von oben her in der Aufsicht beobachtet werden kann. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 3. Roll film camera according to claim 1, characterized in that the axis of the pointer (6) EMI1.1 4. Roll film camera according to claim 1, characterized in that a viewing opening (7) is provided on the upper narrow side of the camera, through which the pointer (6) of the measuring instrument can be observed from above in plan. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT148285D 1935-06-15 1936-03-26 Roll film camera with built-in photoelectric light meter. AT148285B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE148285T 1935-06-15

Publications (1)

Publication Number Publication Date
AT148285B true AT148285B (en) 1937-01-11

Family

ID=29278135

Family Applications (1)

Application Number Title Priority Date Filing Date
AT148285D AT148285B (en) 1935-06-15 1936-03-26 Roll film camera with built-in photoelectric light meter.

Country Status (1)

Country Link
AT (1) AT148285B (en)

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