Silmänseurantalaite

Silmänseurantalaite, also known as an eye tracker, is a device that allows a computer system to observe a person's eye movement. It tracks the position of the eyes, determining where the user is looking on a screen or in their environment. This technology has a wide range of applications across various fields.

The basic principle of eye tracking involves emitting infrared light onto the user's eyes. Special cameras then capture reflections from the cornea and pupil. Sophisticated algorithms analyze these images to calculate the gaze point. There are several types of eye trackers, including remote eye trackers that are positioned away from the user, and head-mounted eye trackers that are worn by the user.

In research, eye trackers are used to understand human behavior, attention, and cognitive processes. For example, they can reveal what parts of a webpage a user focuses on or how a driver scans the road. In accessibility, eye trackers offer a way for individuals with severe motor impairments to control computers and communicate, effectively using their gaze as a mouse cursor.

The technology also plays a role in user experience (UX) research, helping designers understand how users interact with products and interfaces. In marketing, eye tracking can be employed to analyze consumer response to advertisements and product packaging. Furthermore, eye trackers are used in fields like psychology, sports science, and even aviation to study performance and training. The continuous development of eye tracking technology is expanding its potential and improving its accuracy and affordability.