4
Using the Tobii PCEye Go
4.1
Positioning
Figure 4.1 Positioning
The mounted Tobii PCEye Go attached to its Magnetic Mounting Plates and to your device is designed to work optimally when
it is parallel to the user’s eyes at a distance from about 45 — 90 cm (18 to 35 inches) for Tobii PCEye Go, see
Figure 4.1 Posi-
tioning, page 14
or
Figure 4.2 Positioning when Users Leaning Sideways or Those Lying Down, page 14
.
Figure 4.2 Positioning when Users Leaning Sideways or Those Lying Down
This means that for those users leaning sideways or those lying down the Tobii PCEye Go with monitor and computer device al-
so needs to be tilted in order to keep the users eyes parallel to the screen and at the optimal distance, see
Figure 4.2 Position-
ing when Users Leaning Sideways or Those Lying Down, page 14
.
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 Gaze Interaction performance, will be enhanced if the sun is not
shining directly on the screen or into the user’s eyes.
The optimal distance that a user should be from the Tobii PCEye Go mounted on a monitor/laptop differs depending on the size
of the screen. The user should be positioned at the optimal distance to allow for the best possible Gaze Interaction.
Generally, the larger the size of the screen, the greater the distance the user should be from the Eye Tracker / Screen combina-
tion for optimal Gaze Interaction.
Smaller than a 10 inch screen and larger than a 27 inch screen should not be used for optimal Gaze Interaction, for more infor-
mation see
Appendix D Technical Specifications, page 58
.
4.1.1
Track Box
The Tobii PCEye Go allows for extensive Freedom of Head Movement. Once the Tobii PCEye Go is properly calibrated and
placed in front of the user, no further adjustments are required.
The Tobii PCEye Go produces an industry leading sized track box with the approximate dimensions of 30 cm × 20 cm × 20 cm
/ 11.8 in × 7.9 in × 7.9 in (Width × Height × Depth). The Track Box is an invisible box positioned approximately 60 cm (23.5 in)
straight out from a point just above the middle of the screen.
14
4 Using the Tobii PCEye Go
Tobii PCEye Go User’s manual v.2.8 - en-US
