Compact image steering and focusing device

摘要

A compact image steering and focusing device has a generally rectangular frame containing a pan/tilt mirror and at least one lens. There is a tilt plane bisecting the frame. A mirror drive motor is attached to the frame on one side of the tilt plane and a lens motor is attached to the frame on the other side of the tilt plane. The frame is rotatably attached to a stand and connected to a frame drive motor mounted on the stand. The device can fit behind the cover plate of an automated teller machine. This system is preferably used with a narrow field of view camera and two wide field of view cameras. Images from the wide field of view cameras are used to focus the narrow field of view camera on one eye of the automated teller machine user to identify the user by iris analysis and comparison to an iris image on file.