DEVICE FOR DISPLAYING EYE POSITION OF IRIS RECOGNITION SYSTEM USING INDICATION PATTERN

摘要

PURPOSE: A device for displaying an eye position of an iris recognition system using an indication pattern is provided to enable a user to conveniently see the indication pattern of the eye position while seeing an eye of the user through a cold mirror, as a virtual image is made at a focal length of the eye by adjusting the focal length of the indication pattern seen through the cold mirror. CONSTITUTION: A light emitter(401) emits light by equipping with an LED(Light Emitting Diode) of the indication pattern. A fresnel lens(402) places the indication pattern emitted from the light emitter at the same position as the reflected virtual image of the eye. The cold mirror(403) reflects a wavelength range except a wavelength of the LED among visible light passing the fresnel lens and passes infrared ray. The indication pattern indicates a distance according to a pattern of the light seen to the user.