Abstract: A microfilm reading and reverse enlarging apparatus with a copying beam for a gap illumination comprises a copy carrier movable with a constant speed, drive device for moving the copy carrier, a film platform for a film and adjustable relative to an illuminating beam, transporting device for reciprocating the film platform synchronously with the movement of the copy carrier, control device for controlling the transporting device, a potentiometer adjustable by the transporting device synchronously with the movement of the platform so as to produce respective values in response to the movement of the platform during a copying process of successive microimages, and storing and comparing device arranged to store preselected values and to receive the values of the potentiometer to compare them with the preselected values, the storing and comparing device being connected with the control device so that the transporting device and the drive device for the copy carrier during reaching by the values of the potentiomet

Abstract: An apparatus for viewing microfiches held in a cassette has a housing defining a rear seat for the cassette holding the microfiches and having a front viewing area, an optical system on the housing for viewing a microfiche in the area, a holder constructed to carry one of the microfiches displaceable on the housing in the area with respect to the optical system for presenting selected portions of a microfiche carried by the holder to the optical system, and a selector in the housing for separating a selected microfiche in the cassette from the other microfiches in the cassette. A drive support is rotatable about and displaceable along an upright axis between the viewing area and the cassette-holding seat and has a pair of generally diametrally opposite arms having outer ends provided with respective drive rollers.

Abstract: An apparatus for sensing microfilms is provided in addition to visible light with a projection lamp for radiating infrared rays which pass through a cold-light mirror to a platform on which a microfilm is disposed. The apparatus is further provided with a projection lens positioned above the microfilm platform. The path of rays is directed from the microfilm platform through the projection lens and then is projected onto an image screen or other sensing surface, for example CCD-device. For adjusting the apparatus for various light spectrum combinations the apparatus is provided with at least one infrared component-reflecting mirror which is displaceable or pivotable to and from the path of illumination rays radiated from the projection lamp.

Abstract: A slide projector has a slide exchange element and a slider movable on the latter and having different widths suitable for magazines with different slide compartment widths, wherein the slider is engageable with the slide exchange element under the action of a spring in direction normal to the displacement direction of the slide exchange element, a magazine sensing element senses a magazine inertable into a respective magazine path and provides for disengagement of the slider from the slide exchange element, and an abutment slides in the displacement path of the slider in the disengaged position of the same.

Abstract: A slide projector having a slidably movable magazine with slides, a platform to receive a slide from the magazine, a first support member to transport a slide from the magazine into the platform and a second support to return the used slide from the platform into the magazine. The first support is rigidly mounted on a slidably movable carriage and adapted to push each successive slide from the magazine when the latter is in alignment with the platform. The second support is pivotally mounted on the slide carriage which moves in the direction toward or backward from the magazine. The second support is a three-linked member adapted to engage the used slide to push the latter back to the magazine and having a pin between a first lever and a second lever. A cammed surface is provided in the housing which engages the pin upon slidable movement of the carriage.

Abstract: The reproducing apparatus, such as a motion-picture film projector, stops recording medium transport in response to interrupt-transport frame markings on the recording medium and reproduces the thusly marked image frames as still images. Interrupt-transport frame markings are provided at the terminal frame of each motion-picture scene on the recording medium, or at each still-shot image frame on the recording medium, or both. The user of the reproducing apparatus can select automatic reproduction of motion-picture scenes interspersed with automatic still reproduction of still shots, and can additionally select automatic still reproduction of the terminal frame of each motion-picture scene.

Abstract: The user of a motion-picture camera selects between motion-picture and single-exposure operation, and presses a release member to initiate shooting, letting go of it to terminate motion-picture shooting. Each time the user lets go of the release member, an internal device provides an interrupt-transport marking alongside the just exposed film frame, or phase shifted relative thereto. Alternatively, the interrupt-transport marking is provided the next time the user presses the release member. In this way, the terminal frame of each motion-picture scene, and each and every one of the interspersed single-exposure shots, is provided with an interrupt-transport frame marking. Thus, if the film is run through a reproducing apparatus provided with a marking detector, detection of each interrupt-transport marking during motion-picture reproduction causes the terminal frame of each motion-picture scene, and also each one of the still shots, to be persistently reproduced as a still image.

Abstract: One end of each film strip is engaged, and an adhesive film splice having a release paper which must be pulled off, is also engaged. In a single operation, resulting from the displacement of two components relative to one another, the overlapped ends of the film strips are cut, the release paper is pulled off the film splice, and the latter is pressed over the joint between the film strips to splice them together.