User's Manual

Table Of Contents
This is not considered a "clean" Windows shut down and is thus not recommended unless completely necessary.
5.3 Using Gaze Interaction
The Tobii Dynavox I-Series+ operate with precision regardless of glasses, contact lenses, eye color or light conditions.
Gaze Interaction enables you to control the computer with your eyes using either Gaze Enabled applications (like
Tobii Dynavox Communicator /Tobii DynaVox Compass) or through the two types of Windows Control. See 5.4.1 Windows
Control Type, page 28.
5.3.1 Positioning
Figure 5.1 Positioning
The Tobii Dynavox I-Series+ is designed to work optimally when it is parallel to the users eyes at a distance of about 60 cm
(23.5 inches), see Figure 5.1 Positioning, page 26.
Figure 5.2 Positioning when Users Leaning Sideways or Those Lying Down
This means that for those users leaning sideways or those lying down the Tobii Dynavox I-Series+ also needs to be tilted in or-
der to keep the users eyes parallel to the screen and at the optimal distance, see Figure 5.2 Positioning when Users Leaning
Sideways or Those Lying Down, page 26.
Make sure the user is placed comfortably in relation to the optimal positioning of, and distance from, the unit. Be
aware also that the users comfort, as well as the Gaze Interaction performance, will be enhanced if the sun is not
shining directly on the screen or into the users eyes.
The user should be positioned at the optimal distance to allow for the best possible Gaze Interaction.
5.3.2 Track Box
The Tobii Dynavox I-Series+ allows for extensive Freedom of Head Movement. Once the Tobii Dynavox I-Series+ is properly
calibrated and placed in front of the user, no further adjustments are required.
The Tobii Dynavox I-Series+ 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.
26
5 Using the Tobii Dynavox I-Series+
Tobii Dynavox I-Series+ Users manual v.1.0 - en-US