What Is Tobii Pro Spark?

Tobii Pro Spark screen-based eye tracker mounted on a monitor for accurate eye tracking research and usability testing

In order to make eye tracking accessible to educators, academic researchers, students, UX professionals, and organizations just starting out with eye tracking, Tobii Pro Spark is an entry-level research-grade screen-based eye tracker. Despite being Tobii's most reasonably priced research eye tracker, it uses the same fundamental technologies as the company's more expensive systems, such as strong participant tracking across a variety of demographics, embedded eye tracking processing, and Tobii's unique 3D eye model. It is especially tailored for research on human-computer interaction, education, cognitive psychology, visual attention, fixation behavior, usability, and consumer research.

How Does Tobii Pro Spark Work?

  • When participants interact with digital or physical stimuli, the eye tracker is installed below a computer monitor (or on an optional tripod) and continuously logs where they are looking.

  • Tobii Pro Spark uses video-based pupil and corneal reflection (PCCR) eye tracking, where infrared illuminators create reflections on the cornea while an integrated eye tracking camera captures images of both eyes.

  • Tobii's proprietary algorithms combine these images with its patented 3D eye model to calculate:

    • Gaze position

    • Eye position in three-dimensional space

    • Pupil diameter

  • with high reliability.

Embedded Eye Tracking Processing

  • Unlike many entry-level eye trackers, Tobii Pro Spark performs all gaze calculations inside the device itself using an embedded Tobii EyeChip™ ASIC processor.

  • This:

    • Reduces the computational load on the host computer

    • Ensures stable, low-latency eye tracking

  • Researchers simply:

    • Connect the device via USB

    • Perform a short binocular calibration

    • Begin collecting gaze data in less than a minute

Flexible Deployment

  • The compact design allows the tracker to be:

    • Attached to displays up to 27 inches

    • Mounted independently using an optional tripod

  • This supports experiments involving:

    • Tablets

    • Mobile devices

    • Real-world objects

  • using optional accessories.

Robust Participant Tracking

Despite its compact form factor, Tobii Pro Spark provides reliable fixation data across participants of different:

  • Ages

  • Ethnicities

  • Participants wearing corrective lenses

The system automatically switches between:

  • Bright-pupil illumination mode

  • Dark-pupil illumination mode

to optimize tracking under varying environmental conditions.

This makes Tobii Pro Spark suitable for:

  • Classrooms

  • Laboratories

  • Usability labs

  • Research facilities

Summary

In order to provide dependable eye tracking for research in education, cognitive psychology, usability, consumer research, and human-computer interaction, Tobii Pro Spark is an entry-level research-grade screen-based eye tracker that combines video-based pupil and corneal reflection (PCCR) eye tracking, Tobii's patented 3D eye model, an embedded Tobii EyeChipTM ASIC processor, bright-pupil and dark-pupil illumination, USB connectivity, and binocular calibration.

If you want to learn more about eye tracking technologies connect us on www.tidentech.com or feel free to ask us on parag@tidentech.com or tidentech@gmail.com call us on +91 9987442274.