PHOTOGRAPHING UNIT
PURPOSE:To obtain a silver halide photosensitive material having a wide permitted extent of underexposure and superior sharpness and not causing defective desilvering by incorporating a specified amt. of coarse silver halide particles into a red- or green-sensitive phtosensitive layer and a specifie...
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| creator | YAGI TOSHIHIKO EZAKI ATSUO |
| description | PURPOSE:To obtain a silver halide photosensitive material having a wide permitted extent of underexposure and superior sharpness and not causing defective desilvering by incorporating a specified amt. of coarse silver halide particles into a red- or green-sensitive phtosensitive layer and a specified amt. of fine silver halide particles into a blue-sensitive photosensitive layer. CONSTITUTION:A photographing unit of this invention contains a silver halide photosensitive material having >=300 ISO sensitivity obtd. by forming photosensi tive layers on a substrate by 4.0-8.0 g/m (expressed in terms of silver). This photosensitive material contains =0.9mum particle size gammac(expressed in terms of one side of a cube) in the red-sensitive photosensitive layer and/or the green-sensitive photosensitive layer and |
| format | Patent |
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CONSTITUTION:A photographing unit of this invention contains a silver halide photosensitive material having >=300 ISO sensitivity obtd. by forming photosensi tive layers on a substrate by 4.0-8.0 g/m (expressed in terms of silver). This photosensitive material contains <=10 wt.% silver halide particles having >=0.9mum particle size gammac(expressed in terms of one side of a cube) in the red-sensitive photosensitive layer and/or the green-sensitive photosensitive layer and <=20 wt.% silver halide particles having 0.45-0.6 mum particle size gammac in the blue- sensitive photosensitive layer. In the case where the high sensitivity film is used in an underexposed state, irregular reflection in the photosensitive layers due to inferior graininess, inferior color developing property and a defective optical system is eliminated and the deterioration of the sharpness, desilverability and rapid processability is prevented.</description><language>eng</language><subject>ACCESSORIES THEREFOR ; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES ; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM ; AUXILIARY PROCESSES IN PHOTOGRAPHY ; CINEMATOGRAPHY ; ELECTROGRAPHY ; HOLOGRAPHY ; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES ; PHOTOGRAPHY ; PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES ; PHYSICS</subject><creationdate>1991</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19911009&DB=EPODOC&CC=JP&NR=H03228047A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19911009&DB=EPODOC&CC=JP&NR=H03228047A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YAGI TOSHIHIKO</creatorcontrib><creatorcontrib>EZAKI ATSUO</creatorcontrib><title>PHOTOGRAPHING UNIT</title><description>PURPOSE:To obtain a silver halide photosensitive material having a wide permitted extent of underexposure and superior sharpness and not causing defective desilvering by incorporating a specified amt. of coarse silver halide particles into a red- or green-sensitive phtosensitive layer and a specified amt. of fine silver halide particles into a blue-sensitive photosensitive layer. CONSTITUTION:A photographing unit of this invention contains a silver halide photosensitive material having >=300 ISO sensitivity obtd. by forming photosensi tive layers on a substrate by 4.0-8.0 g/m (expressed in terms of silver). This photosensitive material contains <=10 wt.% silver halide particles having >=0.9mum particle size gammac(expressed in terms of one side of a cube) in the red-sensitive photosensitive layer and/or the green-sensitive photosensitive layer and <=20 wt.% silver halide particles having 0.45-0.6 mum particle size gammac in the blue- sensitive photosensitive layer. 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CONSTITUTION:A photographing unit of this invention contains a silver halide photosensitive material having >=300 ISO sensitivity obtd. by forming photosensi tive layers on a substrate by 4.0-8.0 g/m (expressed in terms of silver). This photosensitive material contains <=10 wt.% silver halide particles having >=0.9mum particle size gammac(expressed in terms of one side of a cube) in the red-sensitive photosensitive layer and/or the green-sensitive photosensitive layer and <=20 wt.% silver halide particles having 0.45-0.6 mum particle size gammac in the blue- sensitive photosensitive layer. In the case where the high sensitivity film is used in an underexposed state, irregular reflection in the photosensitive layers due to inferior graininess, inferior color developing property and a defective optical system is eliminated and the deterioration of the sharpness, desilverability and rapid processability is prevented.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS |
| title | PHOTOGRAPHING UNIT |
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