AT149838B - Photoelectric light meter for photographic cameras. - Google Patents

Photoelectric light meter for photographic cameras.

Info

Publication number
AT149838B
AT149838B AT149838DA AT149838B AT 149838 B AT149838 B AT 149838B AT 149838D A AT149838D A AT 149838DA AT 149838 B AT149838 B AT 149838B
Authority
AT
Austria
Prior art keywords
instrument
photographic cameras
light meter
photoelectric light
housing
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 AT149838B publication Critical patent/AT149838B/en

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  • Structure And Mechanism Of Cameras (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Photoelektrischer Belichtungsmesser für photographische Kameras. 



   Bei der Herstellung und Verwendung photoelektrischer Belichtungsmesser, wie sie insbesondere zum Einbau in photographische Kameras Verwendung finden, ist es von grosser Bedeutung, wenn die
Ausführung derartiger Instrumente so erfolgt, dass der empfindliche Mechanismus des Drehspulen- instrumentes vor äusseren Einflüssen sowie vor allen Zugriffen geschützt ist. 



   Nach der Erfindung ist aus diesem Grunde das Drehspuleninstrument des photoelektrischen
Belichtungsmessers allseitig von einem Gehäuse umschlossen, so dass Staub und andere schädliche Einflüsse vom Instrumente abgehalten werden, insbesondere ist dadurch auch die Möglichkeit gegeben, solche Instrumente leicht an die Stelle zu bringen, wo beispielsweise die Montage im Apparat erfolgt. 



  Das das Instrument einhüllende Gehäuse kann aus beliebigem Material hergestellt sein. Durch das   Schutzgehäuse   wird es ebenfalls ermöglicht, den Einbau des Instrumentes im Apparat zu erleichtern. 



  Die Lagerung des Instrumentengehäuses erfolgt im Apparat zweckmässig federnd, so dass das Drehspuleninstrument vor Erschütterungen bewahrt bleibt. 



   In der Zeichnung ist in einem Ausführungsbeispiel die Anordnung eines solchen Instrumentes in einer Spiegelreflexsueherkamera gezeigt. Fig. 1 zeigt einen lotrechten Schnitt und Fig. 2 einen Kreuzriss zu Fig. 1. 1 ist der Magnet des Drehspuleninstrumentes. 2 ist die Drehspule, auf deren Achse sieh der Zeiger 3 befindet.   4   ist das Schutzgehäuse des Drehspuleninstrumentes, welches auf einer Feder 5 gelagert ist, die mit der Kamerawand 6 verbunden ist. Das   Schutzgehäuse   4 ist mit einer Öffnung 7 versehen, so dass der Zeiger des Instrumentes durch ein oberhalb der Kamera angeordnetes Fenster 8 sichtbar ist. 



   PATENT-ANSPRÜCHE :
1. Photoelektrischer Belichtungsmesser für photographische Kameras, dadurch gekennzeichnet, dass das Drehspuleninstrument in einem das Instrument allseitig   umschliessenden   Gehäuse   (4)   gelagert ist. 

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



   <Desc / Clms Page number 1>
 



  Photoelectric light meter for photographic cameras.



   In the manufacture and use of photoelectric exposure meters, such as those used in particular for installation in photographic cameras, it is of great importance if the
Such instruments are designed in such a way that the sensitive mechanism of the moving coil instrument is protected from external influences and from all access.



   For this reason, according to the invention, the moving coil instrument is the photoelectric
Exposure meter enclosed on all sides by a housing, so that dust and other harmful influences are kept away from the instrument, in particular this also gives the possibility of easily bringing such instruments to the point where, for example, they are installed in the apparatus.



  The housing enclosing the instrument can be made of any material. The protective housing also makes it easier to install the instrument in the apparatus.



  The mounting of the instrument housing is expediently resilient in the apparatus, so that the moving coil instrument is protected from vibrations.



   In the drawing, the arrangement of such an instrument in a single-lens reflex camera is shown in one embodiment. 1 shows a vertical section and FIG. 2 shows a cross-sectional view of FIG. 1. 1 is the magnet of the rotating coil instrument. 2 is the rotating coil, on whose axis the pointer 3 is located. 4 is the protective housing of the moving coil instrument, which is mounted on a spring 5 which is connected to the camera wall 6. The protective housing 4 is provided with an opening 7 so that the pointer of the instrument is visible through a window 8 arranged above the camera.



   PATENT CLAIMS:
1. Photoelectric exposure meter for photographic cameras, characterized in that the moving coil instrument is mounted in a housing (4) surrounding the instrument on all sides.

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

 

Claims (1)

2. Photoelektrischer Belichtungsmesser nach Anspruch 1, dadurch gekennzeichnet, dass das Gehäuse des Drehspuleninstrumentes federnd im photographisehen Apparat gelagert ist. EMI1.1 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. Photoelectric exposure meter according to claim 1, characterized in that the housing of the moving coil instrument is resiliently mounted in the photographic apparatus. EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT149838D 1934-06-19 1935-03-20 Photoelectric light meter for photographic cameras. AT149838B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE149838X 1934-06-19

Publications (1)

Publication Number Publication Date
AT149838B true AT149838B (en) 1937-06-10

Family

ID=5673581

Family Applications (1)

Application Number Title Priority Date Filing Date
AT149838D AT149838B (en) 1934-06-19 1935-03-20 Photoelectric light meter for photographic cameras.

Country Status (1)

Country Link
AT (1) AT149838B (en)

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