Image sensor unit and image reading apparatus using the image sensor unit
A reflection reading light guide that emits light of a reflection reading light source, from a reflected light emission surface to bill S; a transmission reading light guide that emits light of a transmission reading light source, from a transmitted light emission surface to bill S; a rod-lens array...
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| creator | HORIGUCHI TOMOYUKI TAKAHASHI HIDEHISA FUJIWARA AKIFUMI YOSHIDA HIDEMASA |
| description | A reflection reading light guide that emits light of a reflection reading light source, from a reflected light emission surface to bill S; a transmission reading light guide that emits light of a transmission reading light source, from a transmitted light emission surface to bill S; a rod-lens array that focuses reflected light from the bill S and/or transmitted light transmitted through bill S; a light receiving element that receives light collected by the rod-lens array; and a frame including a housing portion that houses the reflection reading light guide are disclosed. A light blocking portion that protrudes from the reflected light emission surface of the reflection reading light guide toward optical axis Z of the rod-lens array is included in the housing portion, and includes a positioning reference surface for the reflection reading light guide. Influence of stray light is reduced, and accuracy of read image is improved. |
| format | Patent |
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A light blocking portion that protrudes from the reflected light emission surface of the reflection reading light guide toward optical axis Z of the rod-lens array is included in the housing portion, and includes a positioning reference surface for the reflection reading light guide. Influence of stray light is reduced, and accuracy of read image is improved.</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 ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; ELECTROGRAPHY ; ELECTROPHOTOGRAPHY ; HOLOGRAPHY ; MAGNETOGRAPHY ; PHOTOGRAPHY ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><creationdate>2015</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=20150728&DB=EPODOC&CC=US&NR=9094562B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150728&DB=EPODOC&CC=US&NR=9094562B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HORIGUCHI TOMOYUKI</creatorcontrib><creatorcontrib>TAKAHASHI HIDEHISA</creatorcontrib><creatorcontrib>FUJIWARA AKIFUMI</creatorcontrib><creatorcontrib>YOSHIDA HIDEMASA</creatorcontrib><title>Image sensor unit and image reading apparatus using the image sensor unit</title><description>A reflection reading light guide that emits light of a reflection reading light source, from a reflected light emission surface to bill S; a transmission reading light guide that emits light of a transmission reading light source, from a transmitted light emission surface to bill S; a rod-lens array that focuses reflected light from the bill S and/or transmitted light transmitted through bill S; a light receiving element that receives light collected by the rod-lens array; and a frame including a housing portion that houses the reflection reading light guide are disclosed. A light blocking portion that protrudes from the reflected light emission surface of the reflection reading light guide toward optical axis Z of the rod-lens array is included in the housing portion, and includes a positioning reference surface for the reflection reading light guide. 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A light blocking portion that protrudes from the reflected light emission surface of the reflection reading light guide toward optical axis Z of the rod-lens array is included in the housing portion, and includes a positioning reference surface for the reflection reading light guide. Influence of stray light is reduced, and accuracy of read image is improved.</abstract><oa>free_for_read</oa></addata></record> |
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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 ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION |
| title | Image sensor unit and image reading apparatus using the image sensor unit |
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