User's Manual

Tobii C-Series User’s Manual

6.2 Using the Tobii CEye Module

6.2.1 Positioning

The Tobii C12 or C15 with the CEye attached is designed to work optimally

when it is parallel to the user’s eyes at a distance of about 60 cm (23.5 in).

This means that for those users leaning sideways or those lying down the

C12/CEye or C15/CEye also needs to be tilted in order to keep the users

eyes parallel to the screen and at the optimal distance.

~60cm

90°

Make sure the user is placed comfortably in relation to the optimal

positioning of, and distance from, the unit. Be aware also that the user’s

comfort, as well as the Eye Tracking performance, will be enhanced if the

sun is not shining directly on the screen or into the user’s eyes.

6.2.2 Track Status Viewer

Use the Track Status viewer (see Using the Tobii C-Eye

Module>Showing Track Status for more information on how open the

Track Status viewer) to help determine the optimal height and horizontal

positioning for eye tracking with the C12/CEye or C15/CEye.

• Ideally, the two dots that represent the user’s eyes should be in the

middle of the Track Status viewer.

• Use the distance meter on the right hand side of the Track Status

viewer to determine the optimal distance the user should be from

the C12/CEye or C15/CEye.

• The white bar in the distance meter should hover near the center,

within the green, when the optimal distance from the C12/CEye or

C15/CEye is reached.

Chapter 6 Tobii CEye Module & Eye Control