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WO/1984/000620A1 |
In the production of half-tone photographic exposures in which supplemental flashing and/or bumping steps involving exposing a photosensitive sheet to non-image light, it is desirable to eliminate operator intervention. A half-tone scree...
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WO/1983/004319A1 |
The device for introducing, extracting and separating films of photosensitive material or copying material in an installation for the continuous exposure to light of this material, comprises endless belt conveyers (7) which are in contac...
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WO/1983/002171A1 |
Exposure light source in which a control circuit (1) controls the number of emissions of light from a light source (3) emitting light pulses, such as a xenon tube, and the quantity of light emitted during the emission, thereby controllin...
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WO/1983/001846A1 |
A time switch comprising: a clock (20) and a time counter (15) controlled by the clock and means (14, 19) for starting the counter (15); input (12) and memory (13) means for entering and storing a base running time; a plurality of furthe...
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WO/1983/001126A1 |
The device for conveying a sheet-like photographic layer support, to the introduction slot of a developing machine is arranged for an improved utilization of the working width of the machine. It comprises a transmission device (50) arran...
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WO/1983/000748A1 |
An exposure table (20) included in an apparatus for handling sheets for microfilming or other similar recording is provided with slots (28) open through the table surface (27) facing the camera (14). Sheet drivers (22) run in these slots...
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WO/1983/000569A1 |
Color separation method for photographing a halftone plate directly from a negative original (37) when making a color halftone printing plate with a camera, and a color separation device using this method. The determination of the exposu...
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WO/1983/000068A1 |
A method of identifying photographic films wherein an exposure identification mark is positioned in the exposure zone of a film or slide in addition to a corresponding exposure identification mark positioned adjacent to the exposure zone.
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WO/1982/004484A1 |
A photographic printing paper winding device in which at least three rollers (8, 9, 10) are pressed in contact with the periphery of a winding shaft (3) for photographic printing paper (40), a predetermined quantity of the paper (40) is ...
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WO/1982/004489A1 |
An apparatus for recording information in the form of a two dimensional array of miniature images on a recording material such as electrophotograhic, photographic or photochromic material. Means are included for forming those images (by ...
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WO/1982/004485A1 |
A photographic printing device which has at least one image-rotating lens(es) (25), (26), which are rotated through 45 , thereby obtaining prints of the same size from both from half-frame and full frame picture film.
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WO/1982/004133A1 |
An apparatus for forming on a semiconductor wafer unit magnification images of a reticle pattern. A reticle (20-30) containing an image pattern corresponding to the size of the desired wafer pattern is substantially uniformly illuminated...
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WO/1982/002779A1 |
A method of printing a color photograph, which has the steps of calculating the hue and the degree saturation of the coordinates of a color original object to be measured and determining the printing exposures of the respective colors in...
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WO/1982/002257A1 |
The device is provided with automatic exposure means (30), of a conventional construction, having colour correction filters (12, 12') arranged in a lighting block (11), and colour television means (32) for the visual appreciation of each...
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WO/1982/002256A1 |
A variable magnification optical assembly (10) having a housing (14) with a fixed location for its object and image windows (24, 32), and a carriage (28) which is linearly moveable within the housing and which has mounted thereon at leas...
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WO/1982/001802A1 |
Method and installation for suppressing the cataphoresis effects in discharge lamps operating with a direct current, used for illuminating documents to be read in image transmitting apparatus. The cataphoresis leads to a darkening in the...
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WO/1982/001774A1 |
Method of providing full range color printing using duplicator technology. The system utilizes substractive color printing techniques, but avoids the necessity for color masking and generally eliminates color correction as well. Followin...
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WO/1982/001597A1 |
A copying apparatus (1) for copying documents, drawings and the like on a paper support is provided with a window (2) for the piece to be copied (3). Under this window (2) is placed a light source for the copy. The copying apparatus has ...
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WO/1982/001423A1 |
Filter than can be adjusted to transmit varying amounts of light, and characterized by uniform degree of transparence over its entire working portion. One embodiment of said filter includes an elongated, flexible, semi-transparent strip ...
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WO/1982/001084A1 |
A photographic printer includes a sensor system (18) for measuring the optical characteristics of each photographic film frame to be printed at a plurality of defined areas. Based upon the measured optical characteristics, the printer id...
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WO/1982/001083A1 |
A photographic printer contains alterable storage (14) for storing negative classification parameters and other critical exposure control parameters in each of a plurality of setups. These parameters are alterable by the user of the prin...
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WO/1982/001081A1 |
Method and apparatus for facilitating the sitting of the ratio between front and back illumination of a document (6) to be photographed to optimise the definition on the eventual image (microfilm) obtained. The overall brightness of the ...
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WO/1982/001082A1 |
A subtractive photographic printer is capable of providing extremely short exposure time by coordinating the operation of shutter (12) and color filters (14, 16, 18). The shutter (12) is normally positioned in the light path, and is driv...
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WO/1982/000903A1 |
In the method for improving the drawing in colour image reproduction by partial electronic retouching, the trichromatic sampling of a colour component of the colour image provides the trichromatic components which are subjected to an ana...
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WO/1982/000721A1 |
Photographic enlargers provided with a pinpoint light source, an optical system generating an image from the lamp to the optical center of the lense, a negative holder and a negative. The enlarger comprises two optical systems with ident...
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WO/1982/000368A1 |
This method is aimed at checking the quality of reproduction of graphic elements obtained by means of a cathode-ray tube on a photo-sensitive material. This method allows the checking in a simple and rational way of the printings obtaine...
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WO/1981/003557A1 |
Occasionally, a sheet of a document stack will have a contrast or density which when copied by a copier in normal operation will produce a poor copy. In this case the practice has been to remove the sheet from the document stack and copy...
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WO/1981/003555A1 |
A method and an apparatus for microfilming, especially for adding new data to previously microfilmed registers. In said method the old data are photographed from the screen (4) of a microfilm reading device (3) and the new data are subse...
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WO/1981/002933A1 |
A photographic exposure apparatus and method for preparing production artwork of an image to be reproduced by photo-engraving. Prior art handwork or manually operated devices employed in modifying artwork images required high levels of s...
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WO/1981/002639A1 |
An envelope for transparencies for overhead projectors comprises a substantially rectangular pocket of transparent plastic sheet material. The pocket is open along at least one side edge for insertion of the transparency to be presented ...
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WO/1981/002346A1 |
A method of preparing a flexographic printing plate to compensate for the distortion imposed on the images on the plate when it is fitted to a printing roll incorporating the steps of producing an intermediate positive or negative with a...
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WO/1981/001887A1 |
A laser beam modulated by the image is conducted by a multi-mode guide to the recording device. The modulated beam reaches a diaphragm which gives therefrom a punctual image on a light sensitive surface. A multi-mode light guide has the ...
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WO/1981/001886A1 |
A method and apparatus for exposing a section of photographic medium (22) such that it exhibits an incremental gradient in optical density across an area of the medium. A source (12) or radiant energy is located in a container (10), whic...
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WO/1981/001767A1 |
A method for recording character or marking signals by multi-beam laser technique, in which the characters are recorded in multi-rastered bands in such a way that the character information is inverted, whereby the recording surface is il...
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WO/1981/001203A1 |
A colour analyser measuring the light intensities of at least three different colours within the spectrum of the incident light, and relating these measurements to values programmed before. Those colour components of the incident light t...
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WO/1981/000771A1 |
An illumination system for a electro-photographic reproduction machine in which a single light source (12) is used in combination with a primary (14) and a secondary elliptical reflector (27) to furnish direct and reflected light as a na...
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WO/1981/000625A1 |
Apparatus and method for synchronously passing photographic prints and corresponding negatives through an inspection and packaging operation. Utilising printing history data compiled on magnetic storage (50) in a central computer system ...
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WO/1981/000246A1 |
An automatic document feed device for hand-fed photocopy machines in which documents to be copied are fed from a feed tray (2) to a receiving tray (3) over a transparent platten (5) which is arranged to register with the illuminated expo...
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WO/1980/002464A1 |
Apparatus for automatically feeding sheet material such as fan fold paper to a photocopier in which the apparatus may be movable towards and away from the window of the photocopier either by disconnecting the apparatus completely from th...
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WO/1980/002467A1 |
Apparatus for producing images from data provided in digital form. The images may be in monochrome or colour. Laser light beams are focused on to a photographic film (39), and are modulated by electro-optical modulators (19, 20, 21) in a...
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WO/1980/002463A1 |
Method of making a plurality of individual prints on a single sheet of photographic print paper along with a particular easel arrangement for carrying out this method. The easel arrangement includes a fixed planar surface of sufficient s...
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WO/1980/001519A1 |
Photographic exposure apparatus and method for preparing production artwork of an image to be reproduced by photo-engraving. Prior art handwork or manually operated devices employed in modifying artwork images required high levels of ski...
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WO/1980/000753A1 |
In a method of reproduction of original models not possessing in particular metameric coloration, these respective originals are explored, in as much as concerns their degree of color, by a three component method and are after a treatmen...
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WO/1980/000613A1 |
A method and apparatus for locating and marking the position of a plurality of image areas on a filmstrip of photographic film. A filmstrip is that film which is normally received after having been exposed in a camera and which is joined...
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WO/1980/000500A1 |
An excellent method of correcting the color of a color original for a color printing having extremely deflected hue. Colored original pictures are classified into types which are underexposed, overexposed, taken under a tungsten lamp, fl...
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WO/1980/000379A1 |
Apparatus for positioning a photographic image (2) at a required position at a work station (A, B, C, D; 300A, 300B, 300C, 300D). The image is one of a plurality disposed in an annulus on a disc shaped film unit (1). The work station may...
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WO/1979/001073A1 |
An electrophotographic reproducing machine for reproducing images on both sides of a copy sheet and for producing multiple images on a single sheet. A sheet-reversing device (17) and means (24, 38, 43, 45, 59) for switching over sheet-co...
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WO/1979/000793A1 |
An ignitting means for a discharge lamp of a reproducer, e.g. for a discharge lamp of an electrostatic reproducer of the type in which a moving light source incrementally illuminates an object to be reproduced and the reflected ray from ...
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JP7470220B2 |
An image reading device includes a housing with a document platen provided on an upper surface of the housing, a scanning body provided to be reciprocally movable in the housing, and a flat cable having one end connected with an image re...
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JP7468150B2 |
An image reading apparatus includes a light source (210; 310) configured to emit at least light in a first wavelength range and light in a second wavelength range different from the first wavelength range, a background member (240; 270) ...
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