Abstract: A contact print frame of the type which is especially adapted to move one or more transparent films (7) into intimate contact with a light sensitive printing plate (11), a light sensitive collection film or any other light sensitive medium and to expose/print said one or more transparent films (7) onto said light sensitive medium (11), and comprising a supporting transparent glass, named contact glass (1), which has, as conventional, vacuum grooves (5, 6) at the bottom surface thereof for vacuum connecting an original/master film (7) and eventually also a masking film to said contact glass (1), and which is arranged to be pressed into contact with the printing plate (11) etc.

Abstract: An energy-efficient barrier uses thin slats, on one side of which are formed a number of reflective surfaces. The reflective surfaces are oriented at an angle, with respect to the face of the slat, to maximize reflection of the rays of the sun. The parallel reflective surfaces are formed as a series of ridges along the length of a slat and as the treads of a series of stairsteps formed along the length of a slat. The slats can be formed of extruded material with the reflective surfaces formed of reflective material which is polated on V-grooves formed in the slats. The slats are oriented in relation to the direct rays of the sun to pass the direct rays of the winter sun between the wider faces of the slats. The reflective surfaces on each slat are also aligned to reflect the direct rays of the summer sun.

Abstract: A support device comprises a first and a second bearing unit for guiding the support device along a base surface and a straight guide extending parallel to the base surface, respectively. The support device has an object table which is coupled to a rigidification member and which is displaceable relative to the two bearing units in a z-direction transverse to the base surface and is tiltable about at least one axis of rotation directed parallel to the base surface by three force actuators. The rigidification member is coupled to the second bearing unit by a coupling member which is elastically deformable in the z-direction, and coupled to the first bearing unit via the force actuators, whereby a statically determined coupling of the rigidification member and the object table to the two bearing units is obtained. The support device is particularly suitable for displacements of an object in the sub-micron range, such as, for example, in an optical lithographic device.

Abstract: A microfilm camera comprises a camera head and a document support. The camera head includes a film transport mechanism for intermittently feeding a strip of microfilm past an exposure station at which an aperture plate is disposed. The aperture in the aperture plate is adjustable in one of at least two different sizes by means of a masking flap supported for movement between a first size position, in which a portion of the aperture is shielded, and a second size position in which the masking flap is clear from the aperture. When a document of a relatively small size is placed on the document support, the masking flap is in the first size position, but when a document of a relatively large size is placed on the document support, the masking flap is in the second size position.

Abstract: The object of the invention is to provide a large-screen projection-type display using a transmission-type screen, wherein the transmission-type screen is formed of two or more sheets 4, 7, is tilted toward the viewer's side with a small gap kept between the sheets, and is stable relative to the temperature and moisture change of the environment. The front sheet 4 provided on the viewer's side and the Fresnel sheet 7 provided on the projection source side are tilted forward by about 7.degree. toward the viewers. The springs 10 are extended through wires 9 to exert the tension on the front sheet 4 in the vertical direction. At the same time, the springs exert a pressure on the Fresnel sheet 7 in the vertical direction.

Abstract: The invention provides a durable multipurpose screenboard especially adapted for both the screening of projected images and for writing thereon, wherein the screenboard comprises an upper section, a core section and a base section, the upper section comprising at least two superposed layers of transparent overlay sheets, each of the sheets weighing between 20 and 120 grams per square meter and having been soaked in a solution or melt of a polymeric resin material to subsequently form an intermediate solid plastic layer, the upper surface of the upper sheet being roughened by a plurality of closely-spaced complementary depressions of depth between 0.01 mm and 0.

Abstract: A lens controller comprises a focusing device for driving a focusing lens group; a zooming device for driving a zoom lens group; a focusing position detector for detecting the position of the focusing lens group on an optical axis; a zoom position detector for detecting the position of the zoom lens group on the optical axis corresponding to a focal distance thereof; a calculating device for respectively receiving outputs of the zoom and focusing position detectors and calculating a correction amount with respect to a shift in position of a formed image after the zoom lens group is driven by the zooming device; a control device for receiving the correction amount and controlling the operation of the focusing device such that the focusing lens group is moved to a focusing position with respect to the focal distance thereof; a device for judging whether or not the focusing lens group is located in inhibit regions on infinite and proximate sides respectively formed within a predetermined distance in a direction

Abstract: A double-sided lenticular lens sheet has an entrance lens layer and an exit lens layer, at least said exit lens layer containing light-diffusing fine particles, and has parameters satisfying the following expressions (I) and (II). ##EQU1## wherein t.sub.1 represents a thickness of the entrance lens layer; t.sub.2, a thickness of the exit lens layer; .DELTA.n.sub.1, a difference in refractive index between the thermoplastic resin and the light-diffusing fine particles in the entrance lens layer; .DELTA.n.sub.2, a difference in refractive index between the thermoplastic resin and the light-diffusing fine particles in the exit lens layer; c.sub.1, a weight concentration of the light-diffusing fine particles in the entrance lens layer; c.sub.2, a weight concentration of the light-diffusing fine particles in the exit lens layer; .rho..sub.1, a gravity of the light-diffusing fine particles in the entrance lens layer; .rho..sub.2, a gravity of the light-diffusing fine particles in the exit lens layer; d.sub.

Abstract: A projection exposure apparatus carries out scan exposure with illumination flux of slit(s) by moving a mask and a substrate in a direction of one-dimension at synchronized speeds with each other. The mask is inclined with a predetermined angle relative to the substrate in the direction of one-dimensional movement. The substrate is also moved in a direction of optical axis of projection optical system when moved in the direction of one-dimension, such that a central part of transfer area on the substrate is located on a best focal plane of projection optical system upon scan exposure.

Abstract: A copying apparatus is provided with a first scanning unit for scanning a first document to expose a photosensitive material and a second scanning unit for scanning a second document to expose the photosensitive material, and, at a position where the optical path of the scanning light of the first scanning unit and the optical path of the scanning light of the second scanning apparatus align with each other, a zoom lens is disposed to modify magnification. Consequently, a lens used exclusively for a high magnification becomes unnecessary.

Abstract: By using a thermal development type photosensitive recording medium wherein a latent image is formed in a photocuring composition by exposure, and in which the components related to thermal color development or thermal color bleaching are diffused to form a color picture image within the photosensitive material correponding to the latent image, a picture signal representing a picture is received and an image of the picture is displayed on a liquid crystal panel as a black and white picture image corresponding to the picture signal. The displayed picture image on the liquid crystal panel is exposed on the photosensitive recording medium. Monomer is polymerized in the exposed areas by a photopolymerization initiator. The components related to color development or color bleaching of the unexposed areas are diffused by means of heating the photosensitive recording medium, and a visible picture is formed.

Abstract: Heat shrink tubing is disposed about a pneumatic tool and heat shrunk into position on the tool. Foraminous material is located between the tubing and tool in a restricted fluid-flow passageway extending between a tool air flow outlet and an end of the heat shrunk tubing.

Abstract: A processor has switches that detect events during operation of the processor and provide signals to a microprocessor which controls operation of the processor. A replenishment system for a processing fluid includes a pump that provides replenishment fluid to a chamber. The processor control is changed to a calibration mode of operation and the switches are used to determine the volume of fluid provided by the pump during one cycle of operation of the replenishment system, and then, if necessary, to adjust the time the pump is operated to increase or decrease the volume of fluid delivered during one cycle of operation.

Abstract: A hearing-enhancing device includes a cap adapted to be worn on a person's head, and a pair of hearing-enhancing members connectable to the cap. The cap size can be adjusted to accommodate varying user head sizes. The hearing-enhancing members each act to substantially enclose the person's ears leaving a forwardly facing opening allowing sound to enter therein, and are constructed so as to direct sound to the person's ears. A connection arrangement is provided between the cap and the hearing-enhancing members for allowing the members to be moved to varying locations on the cap, to provide proper positioning of the members even when the cap is adjusted to accommodate different user head sizes.

Abstract: A camera using film having a magnetic memorizing portion that includes a plurality of frames. The camera includes a writing device for writing the same information onto the same frame of the magnetic memorizing portion a plurality of times, and a varying device for automatically varying the number of times of writing by the writing device in conformity with the substance or degree of importance of the information.

Abstract: An exposure apparatus for exposing a substrate with light from a light source has a stage for moving the substrate along a substantially horizontal plane, a base member for supporting the stage, and a frame member having at least three mounts for supporting the base member. A first actuator system having a plurality of first actuators provided in the mounts, respectively, moves the base member in a direction substantially parallel to the vertical direction. A second actuator system having at least one second actuator provided in at least one of the mounts moves the base member substantially along the horizontal plane. A control means is provided to control the first and second actuator systems in a such a way as to suppress vibration of the base member.

Abstract: This invention is directed to an assembly for adjustably mounting the optical system of a reproduction apparatus, having an optical system for projecting a light image of information to be reproduced on to a recording medium, relative to a frame of the reproduction apparatus. The adjustable mounting assembly comprises at least one stud supported by the frame and selectively moveable relative thereto. The optical system is clamped to at least one stud for movement therewith, the clamping mechanism including an elastomeric member for substantially isolating the optical system from any shock imparted to the frame.

Abstract: A transmission type projection screen assembly comprises a relatively thin flexible screen, and a plurality of small force receiving blocks fixed at spaced-apart positions in a horizontal row to the flexible screen along the upper and lower edges thereof. Spring devices are inserted between adjacent small blocks so that constant horizontal tension is applied to the screen to prevent wrinkling and deflection thereof. A horizontal support beam is fixed to a screen support frame and suspendingly supports the flexible screen via the upper small blocks, and a relatively rigid screen is placed in flush contact with the flexible screen and rests on the lower small blocks. The weight of the rigid screen applies vertical tension to the flexible screen so that wrinkling and deflection of the flexible screen is further prevented.

Abstract: An exposure apparatus having upper and lower ultraviolet rays irradiating devices which are vertically symmetrically disposed above and below a pattern-forming board having through holes therein, and upper and lower light-transmissible plates which are disposed spacedly from each other in a light path of the ultraviolet rays irradiated to the board so as to be vertically symmetrically disposed with respect to the board and horizontally movable, each of the ultraviolet rays irradiating devices having an electric discharge lamp and a reflection mirror and each of the light-transmissible plates having an uneven surface of a sawtooth section. With this arrangement, a proper photochemical reaction can be induced to the photoresist on the surface of the board and the inner wall surfaces of the through holes to thereby improve a working efficiency of a pattern forming process.

Abstract: There is described a system and method for reproducing an original record using a narrow band filter, such as a dichroic filter, to modify the contrast of the reproduction without modifying the color balance or the wavelength peak of sub-reocrds. The system is particularly useful in reproducing motion picture records where a multiplicity of additive lamp houses can be employed. The system reduces variations in contrast and color reproduction among different additive lamp houses.