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    Liquid trapping means for a film unit
    22.
    发明授权
    Liquid trapping means for a film unit 失效
    液膜检测装置

    公开(公告)号：US3689269A

    公开(公告)日：1972-09-05

    申请号：US3689269D

    申请日：1971-01-07

    申请人： SCHIEVEN ARLINE E ,  EASTMAN KODAK CO

    发明人： SCHIEVEN STANLEY R

    IPC分类号： G03C8/42 ,  G03C1/48

    CPC分类号： G03C8/42

    摘要： FOR TRAPPING AND RETAINING THE EXCESS PROCESSING FLUID DISTRIBUTED BETWEEN AN EXPOSED PHTOTSENSITIVE SHEET AND A SECOND SHEET SUPERPOSED THEREWITH WHEN THE TWO ARE MOVED LONGITUDINALLY BETWEEN A PAIR OF PRESSURE APPLYING MEMBERS TO RUPTURE A POD CONTAINING AN AMOUNT OF PROCESSING SOLUTION IN EXCESS OF THAT REQUIRED TO PROCESS THE EXPOSED LATENT IMAGE, THE TRAILING END OF ONE OF THE SHEETS IS EXTENTED BEYOND THE IMAGE AREA THEREOF AND IS MEDIALLY FOLDED BACK UPON ITSELF TO PROVIDE A FLAP THE FREE END OF WHICH WILL EXTEND BACK AT LEAST TO THE TRAILING END OF THE OTHER SHEET, AND PROBABLY BEYOND AND UNDER THE TRAILING END OF THE OTHER SHEET, TO FORM A TRAP FOR THE EXCESS PROCESSING FLUID. THE SHEET WHOSE TRAILING END IS FOLDED BACK TO FORM THE TRAP SHOULD BE MADE OF MATERIAL HAVING SUFFICIENT RIGIDITY AND/OR RESILIENCE THAT IT RESISTS FOLDING SO THAT THE FREE END OF THE FOLDED-BACK FLAP NORMALLY REMAINS SPACED FROM THE SHEET PROPER TO FROM AN OPEN MOUTH FOR RECEIVING EXCESS PROCESSING FLUID. THE LONGITUDINAL EDGES OF THE FOLDED-BACK TRAP ARE SEALED TOGETHER IN SUCH A WAY AS TO PREVENT THE FLOW OF PROCESSING FLUID FROM THE EDGES BUT TO ALLOW THE ESCAPE OF AIR THEREFROM. AT LEAST ONE PROTUBERANCE IS EMBOSSED IN EACH OF THE SEALED EDGES TO EFFECT A SIGNIFICANT SEPARATION OF THE PRESSURE APPLYING MEMBERS AS THE TRAP PASSES THEREBETWEEN WHEREBY THE FOLDED-BACKED FLAP WILL NOT BE COMPRESSED SUFFICIENTLY TO CAUSE A BACK FLOW OF ANY FLUID WHICH HAS ENTERED THE TRAP.

    Novel photographic products and processes
    23.
    发明授权
    Novel photographic products and processes 失效

    公开(公告)号：US3672890A

    公开(公告)日：1972-06-27

    申请号：US3672890D

    申请日：1970-08-19

    申请人： POLAROID CORP

    发明人： LAND EDWIN H

    IPC分类号： G03C8/42 ,  G03C8/44 ,  G03C1/48 ,  G03C5/54 ,  G03C7/00

    CPC分类号： G03C8/426 ,  G03C8/44

    摘要： ING THE PH OF THE PROCESSING COMPOSITION TO A SECOND PH AT WHICH THE DYE IMAGE-FORMING MATERIAL IS SUBSTANTIALLY NONDIFFUSIBLE SUBSEQUENT TO SUBSTANTIAL DYE TRANSFER IMAGE FORMATION IN THE RECEPTION LAYER.

    THE FILM UNITS ADDITIONALLY INCLUDE, IN COMBINATION, MEANS FOR INTERPOSING, SUBSEQUENT TO PHOTOEXPOSURE OF THE SILVER HALIDE LAYER, INTERMEDIATE THE SILVER HALIDE LAYER AND THE RECEPTION LAYER, AN OPACIFYING AGENT IN A CONCENTRATION EFFECTIVE TO MASK DYE IMAGE-PROVIDING MATERIAL ASSOCIATED WITH THE PHOTOSENSITIVE LAYER OF PREFERABLY COMPRISING AN INORGANIC REFLECTING PIGMENT DISPERSION CONTAINING AT LEAST ONE OPTICAL FILTER AGENT IN A CONCENTRATION EFFECTIVE TO PROVIDE A LAYER EXHIBITING OPTICAL TRANSMISSION DENSITY >$6.0 DENSITY UNITS WITH RESPECT TO INCIDENT RADIATION ACTINIC TO THE PHOTOSENSITIVE SILVER HALIDE LAYER AND OPTICAL REFLECTION DENSITY
    THE PRESENT INVENTION RELATES TO PHOTOGRAPHY AND, MORE PARTICULARLY, TO REFLECTION TYPE DIFFUSION TRANSFER PROCESS PHOTOGRAPHIC FILM UNITS WHICH COMPRISE A COMPOSITE PHOTOSENSITIVE ELEMENT ADAPTED TO PROVIDE, BY DIFFUSIN TRANSFER PHOTOGRAPHIC PROCESSING, SELECTIVE INTEGRAL NEGATIVE AND POSITIVE IMAGE RECORDATION OF INCIDENT ACTINIC RADIATION AS A FUNCTION OF THE POINT-TO-POINT DEGREE OF PHOTOSENSITIVE ELEMENT EXPOSURE, WHICH ELEMENT INCLUDES A PLURALITY OF SEQUENTIAL LAYERS INCLUDING A DIMENSIONALLY STABLE LAYER PREFERABLY OPAQUE TO INCIDENT ACTINIC RADIATION; A PHOTOSENSITIVE SILVER HALIDE LAYER HAVING ASSOCIATED THEREWITH DYE IMAGE-FORMING MATERIAL WHICH IS DIFFUSIBLE DURING PROCESSING AS A FUNCTION OF THE POINT-TO-POINT DEGREE OF SILVER HALIDE LAYER EXPOSURE TO INCIDENT ACTINIC RADIATION; A LAYER ADAPTED TO RECEIVE IMAGE-FORMING MATERIAL DIFFUSING THERETO; AND A DIMENSIONALLY STABLE LAYER TRANSPARENT TO INCIDENT RADIATION.

    Photographic film packs
    24.
    发明授权
    Photographic film packs 失效
    摄影胶片包

    公开(公告)号：US3648585A

    公开(公告)日：1972-03-14

    申请号：US3648585D

    申请日：1970-06-12

    申请人： EASTMAN KODAK CO

    发明人： NERWIN HUBERT

    IPC分类号： G03B17/34 ,  G03C8/42 ,  G03B17/52

    CPC分类号： G03C8/42 ,  G03B17/34

    摘要： The disclosure relates to photographic film packs containing a plurality of self-processing film units adapted to be exposed and withdrawn from the film pack in sequence. A novel arrangement of restraining tabs provided by the leader members of the respective film units insures proper sequential withdrawal of the film units and prevents the removal of each successive unit from effecting movement of any of the remaining units.

    摘要翻译： 本公开涉及包含多个自适应膜单元的照相胶片组，其适于从胶片组中依次曝光和取出。 限制由各个胶片单元的引导构件提供的突片的新颖布置确保了胶片单元的适当顺序取出，并且防止每个连续单元的移除影响任何其余单元的移动。