DE1871067U - CAMERA WITH DISPLAY OF THE APERTURE VALUE IN THE FINDER. - Google Patents

Description

Kodak Aktiengesellschaft DA fi 0 Q 3ΓΟ * .Ρ Ο ΓD

Stuttgart-Wangen

Hedelfinger Strasse 5 * +> 60 and 70

February 7, 1963 Utility model registration

Camera with display of the aperture value in the viewfinder

The innovation concerns a camera with a diaphragm, the value of which is optionally controlled by a photoelectric diaphragm regulator or adjustable by hand.

In cameras whose aperture values can be adjusted by hand, it is known to use display devices with the adjustment means which are visible in the viewfinder of the camera and display the aperture value. It is also known for cameras with a photoelectric aperture regulator with the gear for adjusting the aperture a device for displaying the To couple the aperture value in the viewfinder.

The innovation is based on the task of creating a device with simple means that also works with such Cameras make it possible to display the aperture value in the viewfinder, the aperture of which is optionally available from a photoelectric Iris control or adjustable by hand. The display should be made regardless of whether the aperture setting has been made by the photoelectric aperture control or by hand. This task will be according to the innovation

solved in that a protruding into the field of view of the viewfinder or a scale disc that can be mirrored in or a pointer that interacts with a scale to display the automatic or manually set aperture value is in direct communication with an aperture control ring, which can optionally be coupled with the diaphragm regulator or a manually operated adjustment device.

In a further embodiment of the innovation, the diaphragm control ring can have at least one part of its circumference Have teeth in which a gear serving to drive the dial engages. It is then particularly useful even if the dial is circular and rotatably mounted. You can then use the gear are advantageously in drive connection via a cord drive.

In a particularly advantageous embodiment of the innovation shows the diaphragm control ring always pulled or pushed by a spring in the direction of one of its end positions an arc-shaped recess into which a nose engages on an adjusting ring so that they the Aperture control ring to adjust the aperture by hand against the force of the spring is able to take along, but when switched on Automatic does not interfere with the control of the aperture by the photoelectric aperture regulator.

The innovation is shown in the following on the basis of the drawing illustrated embodiment described and explained in more detail.

The drawing shows in a schematic representation only the for the innovation of essential parts of a camera.

The value of the diaphragm, not shown in detail in the drawing, for example a conventional lamella diaphragm, is determined by the position of the diaphragm control ring 1, which can be rotated either with the aid of the lever 2 or the diaphragm setting ring 3. The diaphragm control ring 1 has teeth k on part of its circumference, into which a läinrgl % § | ngp§if |. On Ö§ * fl§i§fc§l Willi I Wii iil

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9 is toilsfgpmig trained imd äii »a? T vo? de » Scale window 10 rotatably mounted that according to the F-stop value one of the numbers on the dial 9 appears in the viewfinder 10.

In the embodiment shown in the drawing, the aperture control ring 1 is adjusted with the aid of the lever 2 from a photoelectric aperture regulator. The rotatable about the axis 11 lever 2 is pivoted with the aid of the slide 12, which can be displaced with the aid of the push button 13 along the rod Ik until the stepped stop 15 on the pointer l6 of the photoelectric

- k ■ -

Light meter 17 system takes place. When the slide 12 is moved down, the lever 2 is pivoted, which with one arm engages under a pin 18 on the aperture control ring 1 and pivots it against the force of the spring 19 until the aperture value determined by the stepped stop 15 and the pointer 16 is reached.

If the automatic system is switched off by turning the setting ring 3, the desired aperture can also be set using the setting ring 3. This is provided with a nose 19 which engages in a circular arc-shaped recess 20 on the aperture control ring 1. The recess 20 extends over a sufficiently large angular range that the setting ring in the automatic position shown 3 rotation of the diaphragm control ring 1 is not hindered by the lever 2. For setting the aperture value by hand, however, the aperture control ring 1 is taken along by the nose 19 on the setting ring 3, which is on the end face 21 of the recess 20 is a stop.

The innovation is not limited to the illustrated embodiment. In particular, the dial can be connected to the diaphragm control ring by means other than those shown and it is also possible to use a pointer instead of the adjustable dial, which works with a preferably fixed scale .

Claims (3)

"5" "1-089 359-8.2.63 protection claims 1. Camera with a diaphragm, the value of which can be set either by a photoelectric diaphragm regulator or by hand is, characterized in that a dial projecting or reflecting into the field of view of the viewfinder (10) (9) or a pointer interacting with a scale to display the automatically or manually set Aperture value is in a geared connection with an aperture control ring (1), which can optionally be connected to the Iris controls (2, 15, 16) or one that can be operated manually a Adjusting device (3) can be coupled. 2. Camera according to claim 1, characterized in that the diaphragm control ring (1) has at least on part of its circumference a toothing (k) into which a toothed wheel (5) used to drive the dial (9) engages. 3. Camera according to claims 1 and 2, characterized in that the dial (9) is circular and rotatable is mounted and is in drive connection with the gear (5) via a cord drive (8). k. Camera according to one or more of Claims 1 to 3, characterized in that the diaphragm control ring (1) which is always drawn or printed by a spring (19) in the direction of one of its end positions has an arc-shaped recess (20) into which a nose ( 19) ™ D ™ on an adjusting ring (3) engages in such a way that it controls the diaphragm to adjust the diaphragm by hand against the force of the spring, but when the automatic is switched on, the control of the diaphragm through does not interfere with the photoelectric aperture control (2, 15 »16).