Like fingerprints, a person's iris is unique. An iris scan is accomplished by a system that uses a device like a digital camera to record details about a person's iris. The image is converted to an iris code and stored in a database for future use.
Iris scan
Iris scan
Iris scan
Iris Scan
Iris scan
Iris scan
1) Retina scan 2) Iris scan
Mexico does.
A signature can be forged much more easily than an iris scan
The type of biometric device you are referring to is an iris scanner. It captures the unique pattern of the colored part of the eye, called the iris, to identify individuals. The infrared beam helps in distinguishing the intricate details of the iris for accurate identification.
An iris scanner uses visible and near-infrared light to scan the iris of an eye. The iris scanner takes a picture and uses it to compare that to an image already stored in a database to see if there is a match. Since everyone's eyes are unique, iris scanners are becoming more popular for identifying people in security situations.
It can be used to detect certain medical conditions such as diabetes, heart or other related medical issues.