Procédé de préparation d'un document photographique
Processing exposed, direct-positive, high-contrast photographic elements with a polyhydroxybenzene developing agent wherein the silver halide emulsion of the element contains silver halide grains comprising internal centers which promote the deposition of photolytic silver and an outer region compri...
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| creator | D. ILLINGSWORTH,MARY |
| description | Processing exposed, direct-positive, high-contrast photographic elements with a polyhydroxybenzene developing agent wherein the silver halide emulsion of the element contains silver halide grains comprising internal centers which promote the deposition of photolytic silver and an outer region comprising a fogged silver halide that develops to silver without exposure. Certain halogen-conducting compounds and electron-accepting compounds can also be added to the element to increase speed. |
| format | Patent |
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ILLINGSWORTH,MARY</creatorcontrib><description>Processing exposed, direct-positive, high-contrast photographic elements with a polyhydroxybenzene developing agent wherein the silver halide emulsion of the element contains silver halide grains comprising internal centers which promote the deposition of photolytic silver and an outer region comprising a fogged silver halide that develops to silver without exposure. Certain halogen-conducting compounds and electron-accepting compounds can also be added to the element to increase speed.</description><edition>1</edition><language>fre</language><subject>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>1971</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=19710731&DB=EPODOC&CC=CH&NR=510896A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19710731&DB=EPODOC&CC=CH&NR=510896A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>D. ILLINGSWORTH,MARY</creatorcontrib><title>Procédé de préparation d'un document photographique</title><description>Processing exposed, direct-positive, high-contrast photographic elements with a polyhydroxybenzene developing agent wherein the silver halide emulsion of the element contains silver halide grains comprising internal centers which promote the deposition of photolytic silver and an outer region comprising a fogged silver halide that develops to silver without exposure. Certain halogen-conducting compounds and electron-accepting compounds can also be added to the element to increase speed.</description><subject>AUXILIARY PROCESSES IN PHOTOGRAPHY</subject><subject>CINEMATOGRAPHY</subject><subject>ELECTROGRAPHY</subject><subject>HOLOGRAPHY</subject><subject>PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES</subject><subject>PHOTOGRAPHY</subject><subject>PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1971</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDALKMpPPrwy5fBKhZRUhYKiwysLEosSSzLz8xRS1EuBRH5yaW5qXolCQUZ-SX56UWJBRmZhaSoPA2taYk5xKi-U5maQc3MNcfbQTS3Ij08tLkhMTs1LLYl39jA1NLCwNHM0JqgAAJ7wLoc</recordid><startdate>19710731</startdate><enddate>19710731</enddate><creator>D. ILLINGSWORTH,MARY</creator><scope>EVB</scope></search><sort><creationdate>19710731</creationdate><title>Procédé de préparation d'un document photographique</title><author>D. ILLINGSWORTH,MARY</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CH510896A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>fre</language><creationdate>1971</creationdate><topic>AUXILIARY PROCESSES IN PHOTOGRAPHY</topic><topic>CINEMATOGRAPHY</topic><topic>ELECTROGRAPHY</topic><topic>HOLOGRAPHY</topic><topic>PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES</topic><topic>PHOTOGRAPHY</topic><topic>PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>D. ILLINGSWORTH,MARY</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>D. ILLINGSWORTH,MARY</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Procédé de préparation d'un document photographique</title><date>1971-07-31</date><risdate>1971</risdate><abstract>Processing exposed, direct-positive, high-contrast photographic elements with a polyhydroxybenzene developing agent wherein the silver halide emulsion of the element contains silver halide grains comprising internal centers which promote the deposition of photolytic silver and an outer region comprising a fogged silver halide that develops to silver without exposure. Certain halogen-conducting compounds and electron-accepting compounds can also be added to the element to increase speed.</abstract><edition>1</edition><oa>free_for_read</oa></addata></record> |
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| subjects | 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 | Procédé de préparation d'un document photographique |
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