Abstract: A concealed, spring-loaded, slide hinge for mounting the light transmitting door to a luminaire housing. The slide hinge includes a hinge-slide member on each side of the door frame adjacent one end of the door and a hinge arm mounted on each of the slide members for sliding movement with respect thereto. A coil spring interconnects the hinge arm to the adjacent door frame end and urges the arm toward that end. Each hinge arm also carries a hinge pin thereon which pivotally mounts the slide hinge to the housing. When the door is opened, the spring urges the door away from the housing to permit the door to swing freely about the bottom edge of the housing while the pivotal connection is maintained.

Abstract: A linear image composition device comprising a beam generator, a first rectangular beam producer for causing the beam generated by the beam generator to be a first parallel light beam with rectangular cross section, a second rectangular beam producer for causing the rectangular beam obtained by the first rectangular beam producer to be a second parallel light beam with rectangular cross section different from that of the first parallel light beam, and a beam condenser to which the parallel light beam with rectangular cross section produced in the record rectangular beam producer is applied.

Abstract: A lantern having a self-contained power supply and a primary source of illumination is provided with a secondary source of illumination which emits a small amount of light for enabling the lantern to be located readily in the dark.

Abstract: This invention relates to an electromagnetic trigger device in a motor-driven camera for effecting bulb exposure in which the shutter is kept open during depression of the shutter release button. By depression of the shutter release button, discharge current from a first capacitor directly or indirectly energizes a electromagnet to drive a shutter driving mechanism. A latching lever stops the shutter driving mechanism in an open shutter position. By release of the button, discharge current from a second capacitor directly or indirectly energizes the electromagnet to drive the shutter driving mechanism. The latching lever stops the shutter driving mechanism in a closed shutter position, thus accomplishing the bulb exposure.

Abstract: A modular photographic system that performs a series of operating functions attendant to the consecutive exposure and processing of a cassette of self-processable film units. The system construction includes a body and front cover member which cooperate to form a protective enclosure for a system assembly that provides the system operating functions independent of the enclosing structure, The system assembly is formed by attaching a series of function-providing modules to a primary structural member that supports each of the modules in interfacing relationship while simultaneously defining the system exposure chamber. The body includes an internal chamber that is adapted to slidably receive the system assembly to support and position it such that the structural interfaces between the two form a cassette receiving chamber. The front cover member fastens to the body with snap-type connectors to retain the system assembly within the body chamber and complete the enclosing structure.

Abstract: An automatic flash-photographing arrangement whereby flash-photography is automatically carried out at a preset shutter speed when brightness of an object is lower than a pre-determined value, the arrangement comprising an automatic exposure control circuit, an electronic change-over switch means connected to said automatic exposure control circuit, and a flash illuminating circuit connected to said change-over switch means. The electronic change-over switch means comprises an adjustable RC delay circuit which can be set for the purpose of determining whether or not flash-photography has to be carried out.

Abstract: A battery hand lamp for use where high luminosity is desirable and where a damp or wet environment or water is encountered, as is the case on boats, in fighting fires or in speleology or the like. The battery hand lamp consists of two units, namely a supply unit and a lamp unit. A fluorescent tube is housed in a protection tube provided with a socket fitting into a corresponding opening of the supply unit. A seal is provided at the socket to prevent the entry of water to the electric connectors connecting the lamp unit with the supply unit. One connector has the form of slide contact springs and the other connector has the form of slide contact rings cooperating with said slide contact springs. This permits one to insert the lamp unit into the supply unit by pushing the lamp unit in and at the same time turning it. In a similar way the lamp unit may be detached from the supply unit by pulling and turning the lamp unit out of the supply unit.

Abstract: An automatic exposure control system for regulating one or more variable photographic parameters. The light level of a scene is evaluated using a photosensitive voltage source. A differential amplifier with a non-linear negative feedback is provided to allow one or more inexpensive linear potentiometers to be used to enter the aperture value and film sensitivity information into the system. Based on these parameters, the system automatically controls the camera shutter speed.

Abstract: A mannequin comprising a head part and a torso part adjustably joined together. In the torso part a sound moving picture projector is mounted to project facial images on a film in a light beam upwardly through the neck into the head as the film is moved through the projector. Simultaneously sound from a track on the film is picked up, amplified and audibly reproduced. The sound and facial images are correlated to simulate a speaking person. The head part has a face piece with well defined forehead, nose, cheeks and chin but only smooth areas for eyes and mouth which is molded of transparent plastic and surface coated as a rear projection screen. Means in the head receive the light beam from the projector and transmit onto the rear projection screen so that the projected facial features correspond in location to the facial features on the face piece.

Abstract: A special effects system for simulating physical sensations in an audience during the presentation of a motion picture. Relatively high intensity, very low frequency random noise is acoustically coupled to a theater space to produce psychological and physiological sensations, much as earthquake movements, in the audience. The special effects are controlled by a control sub-channel which is either frequency multiplexed onto a conventional optical audio track or, in a magnetic stripe film format, the control sub-channel is placed on an accompanying optical track. The presence and amplitude of two control frequencies in the sub-channel are detected and logically combined, providing four separate digital function control signals and two analog control signals which are variable in amplitude.

Abstract: An electrically controlled shutter device for a photograhic camera. The shutter device includes a shutter element which is mounted for movement for opening and closing a light admitting aperture of the camera. A drive mechanism causes the movement of the shutter element between its respective positions. An external trigger control provides for initiation of the opening and closing of the aperture during the exposure operation. A position monitoring mechanism is associated with the shutter element for providing a signal in dependence upon the shutter element being located in a predetermined position. A control mechanism is coupled to the output of the position monitoring mechanism and controls the operation of the shutter device as a function of the signal provided by the position monitoring mechanism and as a function of the signals from the external trigger control.

Abstract: An improved exposure control system featuring a follow-focus mechanism wherein the geometrical relationship of the mechanical components are determined in a select manner to provide uniform adjustment of the exposure aperture through a trim mechanism irrespective of the actual focus setting. The follow focus additionally may be precisely calibrated despite the cumulative effect attributable to the dimensional variations of the individual components albeit such variations remain within prescribed tolerances.

Abstract: A system for responding to non-uniform scene brightness. The system includes a plurality of photosensitive devices which are capable of receiving light from different parts of a scene while remaining static with respect thereto. Through an electrical connecting structure these photosensitive devices are all electrically connected with an output structure which will provide an output determined by at least one of a pair of the photosensitive devices which are respectively exposed to light of maximum and minimum brightness from the scene. The plurality of photosensitive devices provide inputs which vary according to a geometric progression in accordance with the variation in light brightness.

Abstract: A movie camera capable of magnetic recording on a loaded film simultaneously with filming includes a pinch roller carried by a bracket which is swingable relatively to the camera body. The pinch roller is movable relatively to the bracket. The bracket is movable in response to the closing operation of a lateral cover of the camera to a position where the pinch roller is adjacent to a capstan and restrained immovably in the position. In response to the operation of a release element for initiating recording, the pinch roller is moved by a spring member into rolling engagement with the film to urge the same into contact with the capstan for recording on the film along a recording track.

Abstract: A system and method for producing an animated motion picture in which the scene contents for the next succeeding frame in a plurality of sequential picture frames may be aligned with respect to the previous frame scene content prior to the photographic recording of the next succeeding frame utilizing a scene registration layout transparency projection having indicia thereon indicating each of the positions of at least the character objects and the scenic objects for each of the frame contents comprising the animated motion picture scene to provide a projection of the complete scene layout and sequential character object movement for a predetermined animated motion picture scene format. The scene registration layout projection is projected onto the stage upon which the scene is to occur between the photographic recording of each of the frames.

Abstract: A data photographing system has a flash capacitor which is charged by a power source and discharged through a flash tube in response to a trigger signal for illuminating data, and has a control circuit for producing the trigger signal only if the flash capacitor has been charged to a predetermined voltage level. The control circuit includes a voltage detector, such as a Zener diode, and a synchronizing switch adapted to be closed in response to actuation of the shutter release mechanism of the camera. The control circuit may also include a trigger capacitor which is charged by the power source and which is discharged through the primary winding of a transformer to produce a trigger signal of stepped-up voltage across the secondary winding of the transformer. The trigger capacitor may be discharged directly through the Zener diode and the synchronizing switch or through an SCR controlled thereby.

Abstract: The film cassette comprises a storage and take-up chambers interconnected by a crosspiece. The crosspiece has a transport surface, which faces the camera lens when located in the camera, over which the film is guided and against which the film is pressed by an engagement surface of the camera film gate. The crosspiece is provided with a slot extending in the direction of film transport, the slot passes through the crosspiece, the length of the slot is at least equal to the distance between two successive transport holes in the film.

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.

Abstract: An electric shutter circuit is disclosed, which linearly varies the resistance in a bias electric power source for setting exposure factors for an automatic exposure control to thereby adjust the collector current of an electric current controlling transistor in a negative feedback circuit, and which even at the time of the manual exposure time setting, linearly varies the resistance in the bias electric power source for introducing exposure factor and setting the exposure time manually to adjust the collector current in an electric current controlling transistor in the negative feedback circuit. This circuit features that the collector current in an exposure time controlling transistor is equalized to the collector current in the electric-current controlling transistor, so that the trigger level in a comparator detector in a time constant circuit will be maintained constant.

Abstract: First and second output voltages are generated respectively in accordance with the logarithm of the intensity of light and as a function of a manually set exposure condition. A control signal to initiate shutter closing is generated when a signal which changes in proportion to the logarithm of an elapsed time period initiated by shutter release operation plus the second output voltage is substantially equal to the first output voltage. The control device includes a circuit for comparing the voltages. The device may be modified to generate a third output voltage which changes in response to the change of the signal and then comparing the first output voltage with the second plus the third output voltage.