发明名称 |
Optical finger print input device |
摘要 |
An optical fingerprint input device by where a mark identification is attached to one surface of a prism and reflected by light beams coming from an external light source to be incident on a lens such that erroneous recognition caused by a fingerprint afterimage of water, sweat or oil remaining on the fingerprint contact surface of the prism can be prevented to improve the security of the device, and a visual advertisement can be additionally obtained when a mark identification logo for advertisement is attached on one surface of the prism.
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申请公布号 |
US2007196003(A1) |
申请公布日期 |
2007.08.23 |
申请号 |
US20040593373 |
申请日期 |
2004.09.14 |
申请人 |
KIM HYUN;SEO YOUNG J;AHN JONG W;LEE SEUNG M;HONG SA H;LEE TAE H;KWAK BYUNG K |
发明人 |
KIM HYUN;SEO YOUNG J.;AHN JONG W.;LEE SEUNG M.;HONG SA H.;LEE TAE H.;KWAK BYUNG K. |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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