MOUNT ADAPTER
PURPOSE:To combinate and use an interchangeable lens in which a difference between a flange back and a mount in a diameter is small and another type of a camera by incorporating specified auxiliary optical systems in a mount adapter. CONSTITUTION:The auxiliary optical systems 2 and 3 are provided on...
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| creator | TSUJI SADAHIKO |
| description | PURPOSE:To combinate and use an interchangeable lens in which a difference between a flange back and a mount in a diameter is small and another type of a camera by incorporating specified auxiliary optical systems in a mount adapter. CONSTITUTION:The auxiliary optical systems 2 and 3 are provided on an adapter ring 1 where a lens mounting female screw 1a is formed on a front edge and a camera mounting male screw 1b on a rear edge. Then a pint difference due to thickness in an optical axis direction generated by mounting the mount adapter is corrected by the optical systems 2 and 3. For example, light directed toward the focus F11 of a lens 11 is finally allowed to converge on the focus F12 of an auxiliary lens 13 by arranging the auxiliary lenses 12 and 13 in the back of the lens 11, and focal distance is extended by the pint difference. |
| format | Patent |
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CONSTITUTION:The auxiliary optical systems 2 and 3 are provided on an adapter ring 1 where a lens mounting female screw 1a is formed on a front edge and a camera mounting male screw 1b on a rear edge. Then a pint difference due to thickness in an optical axis direction generated by mounting the mount adapter is corrected by the optical systems 2 and 3. For example, light directed toward the focus F11 of a lens 11 is finally allowed to converge on the focus F12 of an auxiliary lens 13 by arranging the auxiliary lenses 12 and 13 in the back of the lens 11, and focal distance is extended by the pint difference.</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 ; CINEMATOGRAPHY ; ELECTROGRAPHY ; HOLOGRAPHY ; PHOTOGRAPHY ; PHYSICS</subject><creationdate>1990</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=19900206&DB=EPODOC&CC=JP&NR=H0235428A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900206&DB=EPODOC&CC=JP&NR=H0235428A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TSUJI SADAHIKO</creatorcontrib><title>MOUNT ADAPTER</title><description>PURPOSE:To combinate and use an interchangeable lens in which a difference between a flange back and a mount in a diameter is small and another type of a camera by incorporating specified auxiliary optical systems in a mount adapter. CONSTITUTION:The auxiliary optical systems 2 and 3 are provided on an adapter ring 1 where a lens mounting female screw 1a is formed on a front edge and a camera mounting male screw 1b on a rear edge. Then a pint difference due to thickness in an optical axis direction generated by mounting the mount adapter is corrected by the optical systems 2 and 3. For example, light directed toward the focus F11 of a lens 11 is finally allowed to converge on the focus F12 of an auxiliary lens 13 by arranging the auxiliary lenses 12 and 13 in the back of the lens 11, and focal distance is extended by the pint difference.</description><subject>ACCESSORIES THEREFOR</subject><subject>APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES</subject><subject>APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM</subject><subject>CINEMATOGRAPHY</subject><subject>ELECTROGRAPHY</subject><subject>HOLOGRAPHY</subject><subject>PHOTOGRAPHY</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1990</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOD19Q_1C1FwdHEMCHEN4mFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8V4BHgZGxqYmRhaOxkQoAQB8IRx4</recordid><startdate>19900206</startdate><enddate>19900206</enddate><creator>TSUJI SADAHIKO</creator><scope>EVB</scope></search><sort><creationdate>19900206</creationdate><title>MOUNT ADAPTER</title><author>TSUJI SADAHIKO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0235428A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1990</creationdate><topic>ACCESSORIES THEREFOR</topic><topic>APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES</topic><topic>APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM</topic><topic>CINEMATOGRAPHY</topic><topic>ELECTROGRAPHY</topic><topic>HOLOGRAPHY</topic><topic>PHOTOGRAPHY</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>TSUJI SADAHIKO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TSUJI SADAHIKO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MOUNT ADAPTER</title><date>1990-02-06</date><risdate>1990</risdate><abstract>PURPOSE:To combinate and use an interchangeable lens in which a difference between a flange back and a mount in a diameter is small and another type of a camera by incorporating specified auxiliary optical systems in a mount adapter. CONSTITUTION:The auxiliary optical systems 2 and 3 are provided on an adapter ring 1 where a lens mounting female screw 1a is formed on a front edge and a camera mounting male screw 1b on a rear edge. Then a pint difference due to thickness in an optical axis direction generated by mounting the mount adapter is corrected by the optical systems 2 and 3. For example, light directed toward the focus F11 of a lens 11 is finally allowed to converge on the focus F12 of an auxiliary lens 13 by arranging the auxiliary lenses 12 and 13 in the back of the lens 11, and focal distance is extended by the pint difference.</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 CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHY PHYSICS |
| title | MOUNT ADAPTER |
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