Device and method for contactless optical imaging of selected surface area of hand

An apparatus and method for contactless optical imaging of a selected surface area of a user's hand wherein the surface area is actively guided in a contactless manner to a target position relative to an image capture unit. To this end, the device has a frame (5) into which a hand is inserted, said hand taking an actual position substantially dependent on the target position. Furthermore, the device comprises at least one active device for positioning the respective actual position and an output unit (7) via which feedback is given to the user and the user repeatedly guides the surface area to the target position. Advantageously, the device and method are suitable for distinguishing between a real hand and an artificial hand. 一种用于对用户手部的选定表面区域进行非接触式光学成像的设备和方法，其中，表面区域以非接触方式有源引导到相对于图像捕获单元的目标位置。为此，设备具有框架(5)，手部插入框架(5)中，所述手部采用大致与目标位置相关的实际位置。此外，设备包含至少一个用于定位相应实际位置的有源装置和输出单元(7)，经由输出单元(7)给予用户反馈并且用户反复地将表面区域引导到目标位置。有利地是，该设备和方法适用于区分真手和假手。