| 摘要 |
An apparatus for positively orienting a designated skin area of an individual to be identified or whose identity is to be verified with respect to a linear light scan device adapted to project a linear light scan along the designated skin area of the individual. Because each individual's skin configuration is unique, the light scan incident on the designated skin area produces a shadow effect which is unique. The incident light is detected by a photocell and transduced into electrical signals representative of, and unique to, a particular individual. These signals may then be compared with a known set of signals to identify the individual or verify the individual's identity. The designated skin area, for example the underside of a selected finger, is positively oriented with respect to the linear light scan device by means of a hand support and floating finger guide which automatically adjusts to an individual's finger size and, as it adjusts, moves the linear light scan device so that the linear light scan is always oriented along substantially the same linear scan path of a particular individual's finger. Thus, when an individual repeatedly places the designated finger in the apparatus, the linear scan is taken along the same portion of the individual's designated skin area.
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