摘要:
A machine capable of producing photographic colour prints, both from images captured on film and from digitally encoded images, consists essentially in a conventional machine as used to make colour prints from images on film, also comprising a one-line cathode ray tube (7 or 7a or 7b) positioned along the path followed by a strip of light-sensitive paper (31) from a supply roll (3) to a set of chemical treatment baths (60), preceding or following the printing surface (29), of which the projecting head (71) generates a pencil-thin line comprising a high number of pixels in a notably broad range of colours. The single lines are emitted gradually and in ordered succession by the projecting head (71), impacting on a corresponding length of the light-sensitive paper (31) as it advances across the head and thus generating an image of high definition and chromatic fidelity directly on the light-sensitive surface.
摘要:
Device for processing photographic material comprising a plurality of treating baths (1-9) containing developing , bleaching , fixing and stabilizing solutions. During the working operations, the treating baths are successively crossed by the photographic material to be treated. The refilling of the treating baths is obtained by means of pumps (41-47) and pipes (31-37) which draw the treating solutions from each restoring container (11-13) as well as the treating water from a water-reservoir (24). A driving device (50) of the refilling pumps cooperates with the level sensors (S1-S6) of the restoring containers in order to stop the refilling process and to actuate an auxiliary pump (71-73) as soon as one of the restoring containers is empty. The auxiliary pump (71-73) removes the residual treating solutions from the restoring containers through an additional pipe (61-63) connected with each restoring container (11-13). The device according to the invention facilitates the maintenance operations and makes simple and economical the disposal of the restoring containers
摘要:
Photographic printer of the type employed for printing according to the monoline technique on photosensitive paper (18), the printer being fed from a wound roll (11) of continuous photosensitive paper (18) and comprising an assembly (12) for the feeding and positioning of the paper (18), a printing device (13) and shearing means (14), the feeding and positioning assembly (12) comprising a first pair of opposed loading rollers (15a, 15b) and a second pair of opposed drawing rollers (16a, 16b) defining a plane of running (19) of the photosensitive paper (18), at least the second pair of drawing rollers (16a, 16b) being at least momentarily actuatable independently step-by-step and being capable of two-way motion, a buffer-stock chamber (20) being included in an intermediate position between the pairs of rollers (15a, 15b, 16a, 16b) and being located in cooperation with the plane of running (19) of the paper (18), the entry of the buffer-stock chamber (20) cooperating at least momentarily with means (21) supporting the paper (18). Digital-printing method performed with the above photographic printer (10) and comprising a preliminary step of loading the paper (18) and a printing step, the printing step including the steps of:
feeding of the paper (18) by means of the first pair of loading rollers (15a, 15b) and by the second pair of drawing rollers (16a, 16b) along a segment equal to the length of the photograph to be printed; clamping of the first pair of loading rollers (15a, 15b); backward drawing of the paper (18) by the second pair of drawing rollers (16a, 16b) actuated with controlled steps and simultaneous printing by the printing device (13), the paper (18) being arranged in the buffer-stock chamber (20) according to a loop having a substantially U-shaped conformation due to the weight of the paper (18); forward movement of the printed paper (18) and shearing thereof.
摘要:
The device (10) comprises an external casing (11) and a sliding drawer table (12) set in motion by a relative drive (15, 16, 17). The table (12) is divided by a longitudinal gap (13) and carries, on one side of the gap, a shuttle (22) housing the roll (23) of film, a product bar code reader (33), systems (19; 34, 38) by which the shuttle (22) is translated respectively in a longitudinal direction and a transverse direction, and a guillotine (41) by which the end of the film (30) is trimmed square; the part of the table on the opposite side of the gap (13) carries a sheath (42) serving to accommodate the film leader (43). The casing (11) also houses a vertical baffle (63) supporting reels (64) of adhesive tape (84). As the table (12) slides into the casing (11), the film (30) is automatically trimmed, brought into correct matching association with the leader (43) and then spliced by portions of adhesive tape (84) applied to both sides of the film (30) and the leader (43).
摘要:
A system of measuring the densities of images on photographic films, comprising a conventional projection unit, in which a measuring device (7) is mounted slidably between the film (6) and the lens (9), capable of longitudinal movement in relation to the film and equipped with a plurality of light-transducing elements (74) arrayed in mutual alignment transversely to the image (I) and positioned to receive respective quantities of light from discrete portions (ZP) of a transverse reading zone (Z), which are admitted through a slot (72), reflected by a mirror (71) and focused by a lens (75). With the measuring device (7) translating longitudinally, such that the slot (72) can cover the image (I) progressively and in its entirety, the single values sensed by the light-transducing elements (74) are fed into an electronic processor (C) and processed together with other data in such a way as to determine the filtration and illumination parameters governing reproduction of the image (I).
摘要:
A stereopticon lanter (2) is fitted to one per se known colour photocopying machine (1) operating by utilizing a photochemical process, so as the diapositive is projected onto the same reproduction screen (15) thereof, thus obtaining a double possibility of reproduction. The colour photocopying machine (1) to which said stereopticon lantern (2) can be fitted comprises a horizontal shooting plane (11) constituted by a thoroughly transparent glass plate onto which the image to be reproduced is put, which image is illuminated below by adequate lamps (12) and the so illuminated image is horizontally reflected by a mirror (13) disposed at a 45° angle inclined beneath said shooting plane and is projected, through a relative optical control unit (14), onto a vertical screen (15) constituted by a photosensitive paper sheet (16), obtained from a band wound about a respective roller (17). After the exposure, the so exposed sheet (16) passes through a developing side (SV) and a subsequent drying side (SE) of conventional kind, disposed in the lower part of the same machine and leaves it by collecting in an adequate container (R). The stereopticon lantern (2) is placed laterally to the shooting plane (11) of the photocopying machine (1) and is connected to an adequate rigid frame (T1), removably fitted to the framework (1C) thereof, so that its projection axis (AV2) results to be parallel to the axis (AV1) of said shooting plane (11) and secant orthogonally the horizontal projection axis (AO1). Besides, a movable mirror (31) inclined at a 45° angle, is disposed along the horizontal projection axis (AO1) of the photocopying machine (1), after the optical control unit (29) of the stereopticon lantern (2) as well as the optical control unit (14) of the fotocopying machine (1), which movable mirror (31) is able to diverge the image produced by the stereopticon lantern (2) onto the same screen (15) of the photocopying machine (1). Such movable mirror (31) may be controlled for being positioned out of the projection light beam of the photocopying machine, so as to allow the same to operate in a conventional manner. Finally, per se known operating, controlling and regulating means are provided for obtaining a regular operation of the so constituted assembly.
摘要:
Photographic printer of the type employed for printing according to the monoline technique on photosensitive paper (18), the printer being fed from a wound roll (11) of continuous photosensitive paper (18) and comprising an assembly (12) for the feeding and positioning of the paper (18), a printing device (13) and shearing means (14), the feeding and positioning assembly (12) comprising a first pair of opposed loading rollers (15a, 15b) and a second pair of opposed drawing rollers (16a, 16b) defining a plane of running (19) of the photosensitive paper (18), at least the second pair of drawing rollers (16a, 16b) being at least momentarily actuatable independently step-by-step and being capable of two-way motion, a buffer-stock chamber (20) being included in an intermediate position between the pairs of rollers (15a, 15b, 16a, 16b) and being located in cooperation with the plane of running (19) of the paper (18), the entry of the buffer-stock chamber (20) cooperating at least momentarily with means (21) supporting the paper (18). Digital-printing method performed with the above photographic printer (10) and comprising a preliminary step of loading the paper (18) and a printing step, the printing step including the steps of: feeding of the paper (18) by means of the first pair of loading rollers (15a, 15b) and by the second pair of drawing rollers (16a, 16b) along a segment equal to the length of the photograph to be printed; clamping of the first pair of loading rollers (15a, 15b); backward drawing of the paper (18) by the second pair of drawing rollers (16a, 16b) actuated with controlled steps and simultaneous printing by the printing device (13), the paper (18) being arranged in the buffer-stock chamber (20) according to a loop having a substantially U-shaped conformation due to the weight of the paper (18); forward movement of the printed paper (18) and shearing thereof.