Abstract: In the context of a device for the production of printing plates comprising a printing down station with a plate table and an associated illuminating means, which station has associated with it a foil receiving means formed preferably by a foil cassette for unprinted foil and preferably a receiving cassette for printed foil, in the case of which the foil to be printed onto an unexposed or blank printing plate is able to be taken from a foil receiving means by means of a moving vacuum frame, is able to be moved onto the blank plate on the plate table and after exposure is able to be discharged, preferably into a receiving cassette, a high rate of plate production and a smooth manner of operation without damaging the foils may be ensured if the foil conveying device has a plurality of vacuum frames moving in circuits which are out of phase with each other.

Abstract: Film transport device in a film projector with winding plates located on both sides of a film gate and drivable by one winding motor, with supply and takeup devices respectively located between the winding plates and the film gate to create film loops on both sides of the film gate, a film transport device between the supply and takeup devices, and a film channel to guide the film placed in the film projector. After film (1) is placed in the open film channel, film transport device (2) and one of the two supply and takeup devices (3, 4) is brought into engagement with film (1) and film transport device (2) is operated at an rpm greater than that of one of the supply or takeup devices (3 or 4) until a first film loop of a presettable length is formed between film transport device (2) and one of the supply and/or takeup devices (3 or 4).

Abstract: A durable filter driving mechanism for a color optical reader that is capable of being positively and accurately positioned is proposed. The filter driving mechanism includes a guiding piece mounting thereon a reduction gear assembly having a reduction gear set meshing with a rack of a sliding piece having a rail coupling thereto a color filter assembly operating in cooperation with a lens assembly and a charge coupled element.

Abstract: An exposure unit for exposing photo-stencil materials in which the light box portion of the unit is continuously cooled by the vacuum pump that operates the vacuum frame portion of the unit. The vacuum pump is mounted internally of the light box portion of the unit and is interconnected with the vacuum frame by a direct interconnection so that a vacuum hose is not required. The unit also icludes a base for supporting the light box and vacuum frame which includes a light-tight, ventilated storage area for the storage of light sensitive materials.

Abstract: A photoresist exposure apparatus in which a photoresist is coated by electrodeposition on the surface of a printed circuit board. The apparatus operates to expose the printed circuit board, which has been subjected to through-hole plating, to light through a film. The apparatus includes a device for horizontally disposing the printed circuit board and a light source positioned adjacent to the printed circuit board which can be rotated horizontally along the printed circuit board surface and which can be lifted and lowered with respect to the surface of the printed circuit board.

Abstract: A color separating device in a color copier includes a predetermined number of filter frames which carry different color filters corresponding to the colors to be separated and which can be moved between a retracted position in which the color filters are retracted from an optical path of an imaging optical system of the copier and an operative position in which the color filters are located in the optical path, the direction of movement being perpendicular to the optical path, guides for guiding the movement of the filter frames, springs for continuously biasing the filter frames toward the retracted position, an endless belt which can be selectively engaged by the filter frames to move the filter frames, and a motor for intermittently rotating the endless belt.

Abstract: An exposure apparatus for exposing on a substrate a pattern formed on a mask, comprises a projection optical system for forming the pattern on a predetermined focusing plane and projecting an image of the pattern on the substrate located to be substantially aligned with the focusing plane, driving means for three-dimensionally moving the mask or at least one of a plurality of optical system, or for inclining the mask or said at least one of the plurality of optical members with respect to a plane substantially perpendicular to an optical axis of the projection optical system and correcting means for driving the driving means to anisotropically change optical characteristics of the projection optical system so that the projected image of the pattern is matched with a pattern already formed on the substrate.

Abstract: A pneumatic pressure pad within an exposure stage of a microfiche duplication equipment cyclically reliably evenly progressively pressures a microfiche master film into uniform pressured contact with an unexposed film in order that the unexposed film may be exposed from the master film without appreciable distortion. A housing of the pneumatic pressure pad defines a chamber divided into separate volumes by a flexible diaphragm. A pneumatic source cyclically applies a differential air pressure between the chamber's two volumes and across the flexible diaphragm. Outside of the housing, an elastomeric pressure pad presents a substantially planar precision crowned surface in a direction oriented towards the planes of each of the unexposed and exposed films. A shaft connects the diaphragm to the pressure pad.

Abstract: The present invention aims to make an image forming apparatus using photopolymerization reaction small-sized, and the image forming apparatus is designed so that a supporting device for supporting a photosensitive image forming member used in a sheet fashion and having a polymerizable layer is shifted endlessly. Further, an exposure device for effecting the image exposure on the image forming member is disposed within a light-shield mechanism, and a whole image exposure device is also disposed within this lightshield mechanism. The image formation on the image forming member is effected by shifting the supporting device endlessly, by passing the image forming member through the exposure device at least two times, by effecting the image exposure by the exposure device, by effecting the heating by a heating device and by effecting whole image exposure at a position of the exposure device.

Abstract: A light-and pressure-sensitive recording sheet and an original, overlapping each other, are introduced into an image forming apparatus, and are exposed to radiation on a transparent drum by means of a light source in the drum, whereupon a latent image, based on the contents of the original, is formed on the recording sheet. Then, the recording sheet is separated from the original by means of a separator, and is passed between a pair of pressure rolls. When the recording sheet is exposed, microcapsules thereon change their hardness. These microcapsules are ruptured selectively by pressure applied to the sheet. As a result, a chromogenic material, contained in the microcapsules, and a developer material, on the surface of a substrate of the recording sheet, react with each other, so that the sheet surface changes its color. Thus, the latent image is developed to accomplish copying in accordance with the original.

Abstract: Film transport device with a film transport sprocket driven by a drive motor whose teeth engage the holes in a motion picture film with play and transport the latter stepwise one frame at a time and final-position it at a film gate. The film transport steps are subdivided into a transport phase (t.sub.T) and a position-adjusting phase (t.sub.R) in which the film is final-positioned accurately. The transport phase (t.sub.T) is divided into a very short acceleration phase (t.sub.1, t.sub.2) in which a high torque setting (M.sub.S1) is set with a steep acceleration rise (t.sub.1), and a long continuous drive and braking phase (t.sub.3, t.sub.4), whose time constant is a multiple of the acceleration phase (t.sub.1, t.sub.2). This ensures minimum transport noise and film-protective transport.

Abstract: A method for high-speed and simultaneous printing of a number of 3-D photographs by utilizing a printer with a wide field of coverage so that all of the 2-D views required to produce a 3-D photograph are projected simultaneously onto the number of 3-D photographs corresponding to the number of 2-D negatives utilized. All of the 3-D print materials advance to the next position for printing until all of the image bands are filled with a portion of the appropriate 2-D view. A high speed printer with a wide field of coverage capable of simultaneously projecting all of the 2-D views required to produce a 3-D picture onto a number of 3-D prints which may have a computer or microprocessor controlling the exposure and moving the 3-D print material between exposures.

Abstract: An apparatus for displaying a series of stationary images to form an animated display when seen from a moving subway train is presented. A series of image display panels are located along a length of subway track. These panels are momentarily illuminated each time a passing train window passes a predetermined point relative to the panel by means of a sensor device attached to each panel. The sensor device detects the presence of a nearby train window by means of a light signal received from each such window. The light signal may be derived either from a source associated with each window or from a reflector associated with each window reflecting light from a source attached to each stationary panel.

Abstract: Control and regulating device for film transport in a film projector, with winding plates (62, 72) located on both sides of a film gate (8) and drivable by a single motor (61, 71), and with supply and takeup devices (3, 4) likewise disposed between the winding plates (62, 72) and film gate (8), the devices being drivable by at least one drive motor (51) to produce film loops on both side of the film gate (8) and with a transport device (2) between the supply and takeup devices (3 and 4). The drive motors (21; 51; 61, 71) for the winding plates (62 and 72), supply and takeup devices (3 and 4), and film transport device (2) are connected with sensors (25; 55; 65, 75) to detect the rpm and/or rotational direction, so that when a presettable rpm is exceeded or when one of the drive motors (21; 51; 61, 71) rotates in a rotational direction counter to the rotational direction predetermined by a higher-order operating control, all drive motors (21; 51; 61, 71) are braked simultaneously.

Abstract: An apparatus for transporting a photographic paper having an epicyclic gear clutch mechanism for transmitting the rotation of a motor selectively to a magazine and a pair of nip rollers. In auto-loading of the photographic paper, the nip rollers are rotated by the motor to feed the leading end of the photographic paper to the exposure station. If a magazine is exchanged before the whole photographic paper is used, the photographic paper is cut at a position upstream of the last picture frame. In the first paper winding operation, the rotation of the motor is transmitted via the epicyclic gear clutch mechanism to the magazine to wind the unprinted portion of the photographic paper into the magazine. When the leading end of the photographic paper is returned back near the tip rollers, the epicyclic gear clutch mechanism is coupled to the nip rollers. In a second paper winding operation, the nip rollers are rotated reversely until the photographic paper detaches from the nip rollers.

Abstract: An image forming apparatus capable of forming an image on a photosensitive recording medium employs a plurality of mask members for exposure prepared on the basis of image data representing the image. The mask members are to be registered sequentially at an exposure position on the photosensitive recording medium. The image forming apparatus comprises a supporting unit for supporting the mask members, the supporting unit being transported from an initial position to a different position including the exposure position, and a moving unit for moving the supporting unit to position the mask member in the exposure position, while the supporting unit is being transported from the initial position to the selected position including the exposure position. An exposure unit exposes the photosensitive recording medium through the mask member positioned in the exposure position.

Abstract: A process for producing micropatterns on large-area substrates, especially liquid crystal displays, in which patterns are transferred from at least one mask onto a substrate by optical means which contain lens or mirror systems. Patterns are sensed continuously from the mask in small areas and transferred by an optical system to the substrate. The transfer system, the mask, and the substrate are positionable relative to one another. The process enables large-area displays having side lengths of at least 10 centimeters to be manufactured reliably and in large quantities. Apparatus for carrying out the process is also disclosed.

Abstract: A case for a film camera with a film magazine which can be mounted at various positions. The case comprises at least one opening to allow passage of the film, an insertion holder for receiving essentially diametrically opposed, formed shoulders of the film magazine and comprises a lock for the latter. In order to make it possible to re-mount the film magazine in a simple manner, provision is made that the case comprises only one opening to allow passage of the film. Also, two different receiving parts are provided which can be selectively fastened to the outside of the case for covering a part of the film. Passage opening and which are provided with a clamping device for fixing the film magazine.

Abstract: Disclosed are a method of and an apparatus for controlling exposure in halftone photography by calculating a main exposure amount, a bump exposure amount and a flash exposure amount based on basic data peculiar to the combination of a screen and a photosensitive material original data depending on an original in a process camera.

Abstract: In this laser pattern generator, plural laser beams are arranged in a closely spaced, noninterfering array. The beams are concurrently deflected across a region of the target surface by an acousto-optic deflector driven by a swept frequency drive signal. The target is moved perpendicular to the direction of deflection to reposition it for exposure during the next stroke of the beams. The extent of target offset in the direction of deflection is measured and used to control initiation of modulation during each deflection stroke, so that each portion of the generated pattern begins from a uniform reference line on the target. Pattern data is supplied to the beam modulators in accordance with data clock pulses the repetition rate of which is established by the rate of change of frequency of the deflector drive signal.