Open type iris image automatic collecting device |
Title： |
| Open type iris image automatic collecting device |
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Application Number： |
200310113287 |
Application Date： |
2003/11/14 |
Announcement Date： |
2004/11/10 |
Pub. Date： |
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Publication Number： |
1545057 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
A61B 5/117G06K 9/00 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Hu Guangshu, Ma Lietian, Zhang Hui |
Key Words： |
Open type, iris image, collecting device, automatic |
Abstract： |
The invention relates to an open automatic iris images collecting device, where the lens and the collector are installed, coaxially, the lens fixed on a support plate and a focusing mechanism covered on the lens. The distance sensor and the infrared head lamps are installed on the support plate, and these head lamps are uniformly distributed along a circle outside the lens. The control circuit is connected with the collector, the distance sensor, the head lamps and the focusing mechanism, respectively. It can automatically collect iris images without any operator; it simplifies the illuminator without diffused processing, thus lowering the cost; it need not make accurate determination and control, thus largely reducing the hardware cost and simplifying the control circuit. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
2006-8-9Date of deemed withdrawal |
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