Optics: motion pictures – Covertible
Patent
1994-11-28
1997-03-18
Metjahic, Safet
Optics: motion pictures
Covertible
352131, 348 64, 396383, 396385, G03B 1302, G03B 1308, G03B 1918, H04N 718
Patent
active
056127553
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a motion picture film recording camera with a film recording beam path, a view finder beam path deflected from it by means of a reflex device and with a video beam path diverted from the latter by means of a beam splitter.
BACKGROUND OF THE INVENTION
A motion picture film recording camera is known from German Patent Publication DE 36 15 424 C2, having a film recording beam path, from which a view finder beam path is diverted intermittently by means of a periodically interrupting mirror. A video beam path is then diverted to a video recording camera from this view finder beam path by a beam splitter, so that film and TV recordings can be made simultaneously.
This known camera has a bulky construction, because the view finder lens is rigidly disposed above the camera housing parallel to the lens, and the video recording camera vertically to the lens axis. With such an arrangement no compact camera design with a handle and attachable film cassettes is possible.
A motion picture reflex camera with an viewing lens is described in German Patent Publication DE 22 00 690 C3, wherein the view finder beam path, which is split off from the recording beam path by the reflex device, exits the camera housing centered above the recording lens. To make possible viewing with the left or the right eye, the view finder outlet from the camera housing is disposed on its front, and the eyepiece of the viewing lens, which is reversed toward the back by means of at least one hinged lens arm and an eyepiece support, can be pivoted around the center axis of this view finder outlet between the right and left sides of the camera.
There is a requirement for motion picture film recording cameras which are compactly designed and equipped with insertable cassettes and can be used in many ways despite their compact structure.
OBJECT AND SUMMARY OF THE INVENTION
It is the object of the invention to design a compactly constructed portable motion picture camera with insertable cassettes in such a way that it will permit a disposition of the viewing device on both sides, even if a video output is provided.
A motion-picture camera has a recording lens mounted on the front of the camera housing, a view finder mounted on the camera housing, a camera handle, a grip base rotatably seated on the top of the camera housing to mount the camera handle thereto, and a video adaptor disposed on the grip base. A film recording beam path is defined for passing a beam of light through the recording lens. A view finder beam path is defined for deflecting a portion of the beam passing through the recording lens to the view finder. Finally a video beam path is defined for deflecting a portion of the beam passing through the recording lens through the video adaptor.
The attainment of the object of the invention allows pivoting of the viewing device (view finder lens) of a motion picture camera toward both sides of the camera lens, so that right and left viewing of the object to be recorded is possible without problems, even if an additional video device is provided.
In an advantageous manner, a partially permeable reflecting beam splitter is disposed in the view finder beam path, which is split off from the film recording beam path, particularly by a reflex device, which reflects a view finder beam component into a view finder outlet on the front of the camera housing. A rearward-reversed eyepiece opening of the viewing lens can be pivoted around the center axis of this view finder outlet between the right and left sides of the camera by means of a hinged lens arm and an eyepiece support hinged thereon, and the video beam path passed by the beam splitter is supplied through a pivot bearing of the camera grip to a video adapter disposed on the grip.
By means of this structural design the view finder outlet as well as the exit of the video beam path are disposed in an advantageous manner at the front end of the camera, and the connection of the video adapter with the camera grip and the pivotable seating of th
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Bedienungsanleitung, ARRIFLEX 16 SRII, 1984, (four sheets).
Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
Chapik Daniel
Metjahic Safet
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