Abstract: A mechanical mounting for a zoom lens having a tubular body in which is rotatably fitted a cam sleeve for controlling the axial movements of optical elements contributing to a zooming action. In order to keep the axial position of the cam sleeve relative to the body tube with a high precision accuracy as it rotates about the optical axis, a restraining mechanism is constructed in the form of rollers radially extending from the cam sleeve into a fitted circumferential interior recess of the body tube.

Abstract: In a portable video system for recording motion pictures by using a video camera and a video recorder, the cable cord connecting said video camera with the video recorder is made detachable, and the cable cord connection terminal on the bottom panel of the housing of the video camera and the cable cord connection terminal on the upper panel of the housing of the video recorder are constructed to be directly connectable to each other so that said camera may be fixedly mounted on said recorder. A grip is arranged on one of the side panels of said camera housing to be usable in any of the cases where the camera is in isolation and where the recorder is directly connected to the camera, and the recorder is provided with a tripod screw hole for enabling attachment of a tripod thereto at the bottom panel of the housing thereof.

Abstract: Disclosed is a video camera in which the CRT of the electronic view finder is disposed in the hand grip.

Abstract: A video system comprising a unitary body type camera, constituted of a video camera for image pick up and a recorder for recording the image signal obtained from the camera, and a reproducing adapter used in combination with the unitary body type camera. The lens of the camera is covered with the reproducing adapter when the adapter is mounted on the unitary body type camera. The reproducing adapter is connected to the camera for converting the recorded image signal into a signal reproducible on a TV receiver.

Abstract: This application discloses a motion picture camera having an automatic focus (auto-focus) adjusting device for automatically focusing a shooting lens on an object.

Abstract: This invention provides a movie camera or a television camera provided with an automatic focusing device, featured by an arrangement in which the automatic focusing device is positioned above the taking lens in the front face of the camera and a digital switch for generating the distance adjust signal for the focusing lens is positioned on the lateral face of the camera.

Abstract: In a sound motion picture camera which permits both sound filming and silent filming by selective use of a sound film cartridge and a silent film cartridge, utilization is made of only signals from loop detecting means for detecting variations in the length of a loop of sound film formed between the exposure station and the sound recording station of the camera during the use of the sound film cartridge, whereby during the use of the silent film cartridge, the film transport speed of a first film transport means for effecting film transport at the exposure station is automatically set to a first speed suited for use of the silent film cartridge and during the use of the sound film cartridge, the film transport speed of the first film transport means is changed over between a second speed higher than the film transport speed of a second film transport means for effecting film transport at the sound recording station and a third speed lower than the film transport speed of the second film transport means in acc

Abstract: A motion picture camera is adapted to receive a film magazine containing a roll of sound recordable photographic film. A housing forms a chamber to receive the magazine. A cover opens and closes the chamber. A recording system records sound signals on the film. A setting arrangement engages the recorder system and the film with each other so as to record signals. The setting arrangement is movable into a first position where the film engages the recorder and a second position where the film is disengaged from the recorder so as to be incapable of recording sound signals. A transport device is coupled to the setting arrangement in the first position when the recorder is in the first position. An interconnecting system responds to closure of the cover for moving the setting arrangement from the second position to the first position so that the camera can be set for sound signal recording in response to the closing of the cover.

Abstract: The present invention relates to a sound motion picture camera capable of the sound recording on the film at the same time with the film exposure by using a sound film cartridge containing a sound film and having an opening for enabling sound recording on the film by means of sound recording device, whereby the sound motion picture camera is provided with a preventive means for preventing the film cartridge from being improperly taken out of the cartridge loading chamber of the camera in the state in which the sound recording device is operatively engaged with the film in the opening of the film cartridge for recording the sound on the film.

Abstract: A motion picture camera which can use a cartridge for film having a sound track includes sound recording means and a mechanism which actuates and releases the sound recording means to an operative state and to an inoperative state, respectively, in response to an actuation and a release of a shutter release member. All such parts which are needed to engage a film are arranged in a cartridge chamber defined in the camera housing so that the operator enables to readily insert a cartridge into the chamber so long as the sound recording means are set to their inoperative position.

Abstract: A motion picture camera is adapted to receive a film magazine containing a roll of sound recordable photographic film. A housing forms a chamber to receive the magazine. A cover opens and closes the chamber. A recording system records sound signals on the film. A setting arrangement engages the recorder system and the film with each other so as to record signals. The setting arrangement is movable into a first position where the film engages the recorder and a second position where the film is disengaged from the recorder so as to be incapable of recording sound signals. A transport device is coupled to the setting arrangement in the first position when the recorder is in the first position. And an interconnecting system responds to closure of the cover for moving the setting arrangement from the second position to the first position so that the camera can be set for sound signal recording in response to the closing of the cover.

Abstract: The camera has a picture image recording mechanism to record a picture image on a picture image recording part of the film, a sound recording mechanism to record sound information at the film having sound recording part, a constant speed film feeding mechanism having a capstan and a pinch roller to run the film at a constant speed at a sound recording head part of the sound recording mechanism, and a release member which controls initiation of a camera and is mechanically linked selectively with the sound recording mechanism and the constant speed film feeding mechanism, and which can simultaneously record a picture image and sound at the film within the cartridge when the film cartridge for simultaneous sound recording is loaded.

Abstract: The present invention relates to a motion picture camera presenting a grip which can be folded from the operation state for bearing the camera body into the loaded state, being characterized in that the camera presents a rotation shaft of the grip parallel to the optical axis of the photographic lens and a release button for the camera release coaxially to the rotation shaft of the grip.

Abstract: A photographic camera in which a film cartridge, housing a photographing film having a recording belt capable of recording sound signal, can be loaded, wherein for the purpose of effecting the recording of sound signal simultaneously with photographing a sound signal recording head and a constant speed film running mechanism are provided at the sound signal recording part being separated from an intermittent film transport mechanism for running the above mentioned film with a constant speed.

Abstract: The present invention relates to a motion picture camera using a film cartridge in whose film winding up shaft a reverse preventing mechanism for preventing the reversed rotation of the winding up shaft is provided whereby the reversion preventing mechanism is released by pushing the central part of the winding up shaft along the axial direction, being characterized in that on the part on which the film cartridge is loaded a movable releasing mechanism for releasing the film reversion preventing mechanism is provided in such a manner that at the time of loading a film cartridge in the motion picture camera the releasing mechanism is recessed from the part on which the film cartridge is to be loaded to a position at which the loading of the film cartridge is possible by means of a control mechanism, while after having loaded the film cartridge the film reversion preventing mechanism is returned to a position at which the film reversion preventing mechanism operates.

Abstract: The present invention relates to a camera allowing simultaneous sound recording into which a film magazine housing a photographing film which can record sound information thus allowing simultaneous sound recording and an ordinary photographing film magazine can be selectively loaded. Also provided is a detection device to distinguish the kind of film magazines mentioned above and a linking mechanism which shifts the camera into a sound recording state in correspondence with the closing action of the magazine chamber cover of a camera only when the above mentioned detection device detects the film magazine which allows simultaneous sound recording.

Abstract: A film handling system to with which a film cartridge is commonly usable in each step of exposure, processing (developing) and projection of the film housed therein, wherein a safety means which advances the above mentioned film cartridge through each step in which it is used in a prescribed sequence is provided. Further an electric circuit which controls the above mentioned handling system in such manner as to activate said system according to the output of the safety means is provided so that such erroneous handling as occurs when processing or projecting unexposed film by mistake or by projecting unprocessed film can be automatically prevented.

Abstract: This invention relates to a composite barrel of the mount for an interchangeable lens which is to be used with a motion picture camera or still camera. An interchangeable lens barrel attachable to the camera body is divided into two sections, one of which is for the mount of a front assembly of a lens system and another section which is for the mount of a rear lens assembly thereof. The rear barrel section is constructed as including a main connector arranged at the rear end to be detachably coupled with the connector of the camera body, an intermediate connector arranged at the front end, a number of tandem connection terminals arranged in a space within the main connector for connection with the corresponding number of electric connection terminals of the camera body, a diaphragm device including drive means therefor connected to the tandem connection terminals, and the rear lens assembly including an image-forming optic arranged behind the diaphragm device.

Abstract: The present invention relates to a motion picture camera which includes an openable cover for loading a film magazine containing a film capable of recording sound information. A sound recording device for recording the sound information on the film and a movable device for moving either the sound recording device or the film to a position at which the sound can be recorded is also included. An operation device for operating the opening and the closing of the openable cover can be displaced to three positions, i.e. the first, the second and the third position. The operation is carried out stepwise so that, at the first position, the movable device operates while the openable cover is locked; at the second position, the movable device does not operate while the openable cover is locked; and at the third position, the movable device does not operate while the openable cover is freed. At least one of the three position being non-linear with respect to the other two.