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131. 发明专利

GB2007377A METHOD OF AND A DEVICE FOR DETERMINING THE COPY LIGHT INTENSITY REQUIREMENT WHEN COPYING COLOUR PRINT MATERIAL 未知
公开(公告)号：GB2007377A
公开(公告)日：1979-05-16
申请号：GB7839022
申请日：1978-10-03
申请人： AGFA GEVAERT AG
IPC分类号： G03B27/73 , G06K11/06 , G03B27/28
摘要： The densities of neighboring unit areas of a color photographic negative are measured in each of the primary colors and the results of measurements are compared with each other to ascertain the dimensions and boundaries of negative portions which exhibit dominant colors. Each such portion is considered in the selection of the amounts of copying light to the extent corresponding to a single unit area. The comparison is carried out by a computer which compares the results of measurements of neighboring unit areas, as considered in and at right angles to the direction of movement of the negative relative to the monitoring elements. A result of measurement is disregarded if it deviates from the result of measurement of a neighboring unit area by less than a preselected reference value which may but need not be different for each primary color.

132. 发明专利

DE2734324A1 未知
公开(公告)号：DE2734324A1
公开(公告)日：1979-02-08
申请号：DE2734324
申请日：1977-07-29
申请人： AGFA GEVAERT AG
发明人： RAPP HEINZ , BIEDERMANN ERNST , BARTEL SIEGFRIED DIPL ING
IPC分类号： G03B27/62 , G03B27/28
摘要： A rotary format-mask carrier plate carries a plurality of removably supported format masks for originals to be copied and carries them back and forth between the copying station and a change station, where the masks can be exchanged for others and/or copied originals replaced by not yet copied originals. Downwardly extending projections on the format masks extend through and beyond corresponding openings in the rotary carrier plate. While a format mask is transported from the change station to the copying station, it rests on the carrier plate. When it reaches the copying station, the carrier plate descends an amount such that the projections on the format mask come to rest on correspondingly arranged stationary electromagnets, thereby transferring the weight of the format mask to the stationary electromagnets. The carrier plate drops a further amount, losing physical contact with the format mask at the copying station. In this way, shaking or vibration of the format-mask carrier plate, resulting from laying on and removal of originals and format masks at the change station, cannot be transmitted to the format mask and original presently located at the copying station.

133. 发明专利

CH587508A5 未知
公开(公告)号：CH587508A5
公开(公告)日：1977-05-13
申请号：CH265175
申请日：1975-03-03
申请人： RANK XEROX LTD
IPC分类号： G03B27/28 , G03B27/62 , G03G13/04 , G03G15/04
摘要： A method and apparatus for producing a single copy from a plurality of originals includes a means for positioning a first original or mask having an open portion or portions therein over an exposure platen, a means for laying a second original or master bearing a plurality of areas of information over the open portion of the first original to produce a copy bearing the information from one area and a means for moving the master between copies to produce another copy bearing information from a different area.

134. 发明专利

GB1470866A CIRCUIT ARRANGEMENT FOR MEASURING QUANTITIES OF LIGHT 未知
公开(公告)号：GB1470866A
公开(公告)日：1977-04-21
申请号：GB5311274
申请日：1974-12-09
申请人： ELEKTROMAT VEB
IPC分类号： G01J1/00 , G01J1/18 , G03B7/08 , G03B27/72 , G03B27/28
摘要： 1470866 Photo-detector circuits ELEKTROMAT VEB 9 Dec 1974 [27 Dec 1974] 53112/74 Heading G1A [Also in Division G2] A bridge circuit including a photo-detector Fd, Fig. 1, also has a capacitor Cm which integrates the detector current so as to measure the quantity of light falling on the detector. By choosing resistors R B1 and R B2 appropriately, the voltages E1 and E2 on the bridge can be made to become equal after a desired amount of light has fallen on the detector, and this equality can be used to control a photographic or printing process, alternatively the difference between El and E2 may be measured by a meter calibrated in lumenhours. To avoid loading the bridge, it is preferably connected to a further bridge incorporating MOSFETS T1, T2, Fig. 3. Here the detector is a cell FZ, and the output of the bridge Br1 is measured by Br 2 and appears at El, E2. Brl is set up so that E1 is larger than E2, so that once measuring starts amplifiers OV and SV activate a relay d. To commence measuring, contact D is closed and the relay is activated; the relay is held on by d1. The relay activation passes power to a load YE by contact d3, and also opens d2 which removes a resistor R 3 from the capacitor Cm 1 and allows the integration to start. Once the desired amount of light, pre-set by RD1-3 and Cm1, Cm2, has been received, voltages El and E2 become equal, the relay drops out, and the load VE, e.g. a shutter for exposure control, is de-activated. Two detectors in parallel may be used in Brl to extend the wavelengths to which the apparatus is sensitive. For photo-diodes or resistors a constant current source is preferable in Br1.

135. 发明专利

DE2508555A1 未知
公开(公告)号：DE2508555A1
公开(公告)日：1975-09-11
申请号：DE2508555
申请日：1975-02-27
申请人： RANK XEROX LTD
发明人： NITTMANN HERBERT ING
IPC分类号： G03B27/28 , G03B27/62
摘要： A method and apparatus for producing a single copy from a plurality of originals includes a means for positioning a first original or mask having an open portion or portions therein over an exposure platen, a means for laying a second original or master bearing a plurality of areas of information over the open portion of the first original to produce a copy bearing the information from one area and a means for moving the master between copies to produce another copy bearing information from a different area.

136. 发明专利

CS160908B1 未知
公开(公告)号：CS160908B1
公开(公告)日：1975-05-04
申请号：CS37873
申请日：1973-01-17
IPC分类号： G03B27/28 , B41L39/02 , G03B27/14

137. 发明专利

NL138864B 未知
公开(公告)号：NL138864B
公开(公告)日：1973-05-15
申请号：NL6506544
申请日：1965-05-24
申请人： IBM NEDERLAND
发明人： LUDERUS FRANCOIS JACQUES DANIE , COURT ALBERT WILLEM DE LA
IPC分类号： C23F1/08 , G03B27/28 , G03F7/22 , G03B15/02 , G03B27/14 , G03C5/08

138. 发明专利

DE7240226U 未知
公开(公告)号：DE7240226U
公开(公告)日：1973-02-01
申请号：DE7240226
申请日：1972-11-02
申请人： ELBE KAMERA GMBH
IPC分类号： G03B27/28 , B41L39/02 , G03B27/42

139. 发明专利

DE2029012A1 未知
公开(公告)号：DE2029012A1
公开(公告)日：1971-01-07
申请号：DE2029012
申请日：1970-06-12
IPC分类号： G03F1/00 , G03B27/28

140. 发明专利

SE329110B 未知
公开(公告)号：SE329110B
公开(公告)日：1970-09-28
申请号：SE1120668
申请日：1968-08-20
申请人： KOENIG C
发明人： KOENIG C
IPC分类号： G03B27/28 , G03C5/08 , B44D3/30
摘要： 1,222,419. Laminates. C. KOENIG. 20 Aug., 1968 [25 Aug., 1967; 23 Dec., 1967], No. 39755/68. Heading B5N. [Also in Division B6] Blank stencil material 4 comprises a laminate of a temporary support 1 of a transparent plastics material, a weak dyed adhesive 3 and a plastics material foil 2 impregnated or imprinted with a light fiiltering dye. The adhesive is such that it adheres to the foil 2 when the temporary support is removed. The material 4 is cut into stencil shapes by inscribing with a cutting tool the foil 2 and the adhesive 3 leaving the support 1 untouched Any piece so inscribed is lifted from the support and applied to any surface, e.g. a silk screen, which is to be partially marked, the adhesive 3 providing the necessary adherence. In a further embodiment the foil 2 is covered with a layer of solvent or heat-activable adhesive.

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