发明名称 |
IMAGING APPARATUS |
摘要 |
An imaging apparatus (34) suitable for capturing an image of one or more of a user's facial features is disclosed. The apparatus includes a spherical cold mirror (45) which presents a concave surface to the user and is disposed between the user and the camera (47). The user is able to conclude that he is close enough to the camera (47) for successful image capture when the reflection he sees in the mirror (45) is the right way up. In a preferred embodiment, markings are provided on the front surface of the mirror to aid the user in placing his eye within a predetermined range of distances from the camera (47). The imaging apparatus (34) is suitable for use in iris recognition apparatuses and provides a relatively inexpensive alternative to known apparatuses.
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申请公布号 |
CA2306876(A1) |
申请公布日期 |
1999.05.06 |
申请号 |
CA19982306876 |
申请日期 |
1998.10.23 |
申请人 |
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY |
发明人 |
MCCARTNEY, DAVID JOHN;SEAL, CHRISTOPHER HENRY |
分类号 |
A61B3/113;A61B3/12;A61B5/117;G06K9/00;G06T1/00;(IPC1-7):A61B5/117 |
主分类号 |
A61B3/113 |
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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