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Tobii X1 Light Eye Tracker User Manual

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Summary of Contents for Tobii X1 Light Eye Tracker

  • Page 1 User Manual Tobii X1 Light Eye Tracker www.tobii.com...

  • Page 2: Epilepsy Warning

    Magnetic field warning The Tobii X1 Light Eye Tracker Mounting Bracket contains magnets. Magnetic fields may interfere with the function of cardiac pacemakers and implantable cardioverter- defibrillators.

  • Page 3: Declaration Of Conformity

    Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/ TV technician for help All Tobii Eye Trackers are CE-marked, indicating compliance with the essential health and safety requirements set out in European Directives.
  • Page 4 Tobii Technology AB, is strictly prohibited. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, without the prior consent of the copyright holder.

  • Page 5: Table Of Contents

    3.1.2 Transportation and storage Cleaning Transporting the Tobii X1 Light Eye Tracker Disposing of the Tobii X1 Light Eye Tracker Assembling the Tobii X1 Light Eye Tracker The Tobii X1 Light Installation Guide The Power supply and the battery pack 4.2.1...
  • Page 6 4.3.1 Track Box Mounting the Tobii X1 Light using a VESA mounting bracket 4.4.1 The mounting process Mounting the Tobii X1 Light using an adhesive mounting bracket 4.5.1 The mounting process Mounting the Tobii X1 Light using a desk stand 4.6.1...

  • Page 7: Parts And Brackets

    Tobii X1 Light User Manual 1 Parts and Brackets The Tobii X1 Light Eye Tracker Tobii X1 Light Back Tobii X1 Light Front Screw Holes for IR Camera Cover Mounting Fixation Magnetic Power Adapter Input Mounting Points Micro USB Input...

  • Page 8: Battery Pack

    MADE IN CHINA Mounting brackets 1.4.1 VESA Mounting Bracket The VESA Mounting Bracket is used to attach the Tobii X1 Light Eye Tracker to a monitor with a VESA mount. This solution can be removed and adjusted for different monitor sizes. 1.4.2...

  • Page 9: Laptop Mounting Bracket

    Tobii X1 Light User Manual 1.4.3 Laptop Mounting Bracket The Laptop Mounting Bracket is used to attach the Tobii X1 Light Eye Tracker to a laptop. 1.4.4 Desk Stand The Desk Stand is used when using the Tobii X1 Eye Tracker without a monitor or for setups where the other mounting brackets cannot be used.

  • Page 10: Quick Start

    Read more on page 24. Attach the eye tracker to the mounting bracket The eye tracker should be mounted so the Tobii logo is the right way up. Read more on page 26 Connect the eye tracker to your computer Connect the Power adaptor or Battery pack and USB cable.

  • Page 11: Component Checklist

    Read more in the relevant software manual. 2.1.1 Component checklist • Tobii X1 Light eye tracking unit • Tobii VESA Mounting Bracket with necessary screws and spacers • • Tobii X1 Light Eye Tracker Resources CD • Tobii Studio or other compatible eye tracking software • Power adaptor...

  • Page 12: Component Checklist

    Read more on page 27. Attach the eye tracker to the adhesive mounting bracket The eye tracker should be mounted so the Tobii logo is the right way up. Read more on page 28 Run your compatible eye tracking software Read more in the relevant software manual.

  • Page 13: Component Checklist

    Windows Start > All Programs > Open the Eye Tracker Browser in the folder Tobii. Select the Tobii X1 Light Eye Tracker in the list of connected eye trackers and click the Config Tool button. Read more on page 36.

  • Page 14: Component Checklist

    Shut down the computer Attach the eye tracker to the desk stand or tripod The eye tracker should be mounted so the Tobii logo is the right way up. Read more on page 29 about using the desk stand and a tripod.

  • Page 15: Product Care

    3 Product Care Temperature & Humidity 3.1.1 General use The Tobii X1 Light Eye Tracker is best kept in dry conditions at room temperature. The recommended range for temperature and the humidity value for the device is as follows: •...

  • Page 16: Disposing Of The Tobii X1 Light Eye Tracker

    Tobii X1 Light User Manual If you have attached the Tobii X1 Light Eye Tracker to a monitor using the Mounting Bracket, do not carry the connected devices by solely gripping the Tobii X1 Light Eye Tracker or the Mounting Bracket. The VESA mount attachment points may not hold the weight of the computer monitor, and the devices could break apart and fall, or topple and fall because of misbalanced weight, causing permanent damage to both.

  • Page 17: Assembling The Tobii X1 Light Eye Tracker

    4 Assembling the Tobii X1 Light Eye Tracker To be able to use the Tobii X1 Light Eye Tracker, you must first install the necessary software and drivers from the included CD, assemble the mounting equipment for the eye tracker and attach it properly to your Tobii X1 Light Eye Tracker.

  • Page 18: The Tobii X1 Light Installation Guide

    Licensing information and show what monitor is currently set as the primary monitor in the Windows Display settings. (To be able to use the Tobii X1 Light Eye Tracker Configuration Guide when having it mounted using the mounting brackets, the monitor on which the eye tracker is mounted must be the primary monitor according to the Windows Display settings.)

  • Page 19: The Power Supply And The Battery Pack

    Once the Installation Guide is finished, you need to power off your computer to mount the Tobii X1 Light Eye Tracker on a mounting device such as the mounting brackets or a desk stand, and to connect the cables between the Tobii X1 Light Eye Tracker and your computer.

  • Page 20: Assembling The Battery Pack

    12V in order for the eye tracker to work (see image below). PM66-DC RECHARGEABLE LITHIUM ION BATTERY PACK 9V/12V(2.5A Max) 66Wh CAUTION: Do not incinerated, disassemble, short heat above 176 F. Use designated charger only. MADE IN CHINA Chapter 4 Assembling the Tobii X1 Light Eye Tracker...
  • Page 21 When pressing the ‘TEST’ button on the battery pack, the diodes in the power meter lights up. When fully charged, the top four lights will be lit. Chapter 4 Assembling the Tobii X1 Light Eye Tracker...

  • Page 22: Positioning

    When the Tobii X1 Light Eye Tracker is used in a setup where any of the brackets are not used, it should be placed below the monitor (or below the surface that is to be studied) without covering the bottom of the display area for the person watching the stimuli.

  • Page 23: Track Box

    The Tobii X1 Light Eye Tracker allows for head movements of 44 cm x 32 cm / 17.3 in. x 12.6 in. (Width x Height) at the distance of 65 cm / 25.6 in. from the eye tracker.

  • Page 24: Mounting The Tobii X1 Light Using A Vesa Mounting Bracket

    Tobii X1 Light User Manual Free VESA NOT Free VESA Mounting the Tobii X1 Light using a VESA mounting bracket It is highly recommended that the mounting bracket is only used with “flat screen” monitors that have a free VESA mounting system (10 cm / 3.94 in. x 10 cm / 3.94 in.

  • Page 25: The Mounting Process

    Use the longer screws to mount the bracket to the monitor. Use only the supplied screws to mount the Tobii X1 Light Eye Tracker to the VESA mount of the appropriate monitor type (only use the longer screws from the Alternative Mounting Kit if you are also using the spacers on a recessed VESA;...
  • Page 26 Tracker folder in the Start menu. Follow the instructions in the configuration guide to configure the eye tracker. If you don’t plan to use your Tobii X1 Light Eye Tracker as a portable eye tracking unit and move it between different computers with the appropriate mounting bracket, you can affix the Tobii X1 Light Eye Tracker to the mounting bracket with the 2 M4 “regular...

  • Page 27: Mounting The Tobii X1 Light Using An Adhesive Mounting Bracket

    USB cable between the eye tracker and the computer and the power cable between the eye tracker and the power socket. Do NOT mount the bracket before the appropriate step for doing so in the Tobii X1 Light Eye Tracker Configuration Guide.
  • Page 28 Attach the Tobii X1 Light Eye Tracker to the mounting bracket by placing the round inprints in the eye tracker over the round magnets on the bracket. If the black metal adapter is attached to the back of the eye tracker, this has to be removed first.

  • Page 29: Mounting The Tobii X1 Light Using A Desk Stand

    If using a tripod, attach it either to the hole at the back or underneath the desk stand. After you have mounted the Tobii X1 Light Eye Tracker system properly and attached the power source to an outlet and attached the USB connector to your computer, restart your computer.

  • Page 30: Mounting The Tobii X1 Light Using The Laptop Mounting Bracket

    Mounting the Tobii X1 Light using the laptop mounting bracket The laptop mounting bracket is used to attach the Tobii X1 Light Eye Tracker to a laptop. The display size of the laptop must not exceed the recommended display sizes as discussed in the Adhesive Mounting Bracket column in section 7.5 Appendix E:...
  • Page 31 After you have mounted the Tobii X1 Light Eye Tracker system properly and attached the power source to an outlet and attached the USB connector to your computer, restart your computer.

  • Page 32: The Configuration Guide

    X Configuration Tool should be used instead. (The X Configuration Tool can be launched from within the Configuration Guide, from within the Tobii Eye Tracker Browser found in the Tobii folder in the Start menu or from the eye tracker browser found in Tobii Studio.) The dimensions of screens differ in terms of thickness as well as the position of the VESA mount on the back of the screen.
  • Page 33 Tobii X1 Light User Manual Follow the instructions on each page of the Configuration Guide, select Next to move to the next page of the Guide. Pay particular attention to the Display Area page and the Calibration page of the Configuration Guide.
  • Page 34 Tobii X1 Light User Manual On the Calibration page, you must calibrate before moving on to the next page. Follow the instructions and select Calibrate. Without calibration you will be unable to finish the Configuration Guide and eye tracking will not work properly.
  • Page 35 Tobii X1 Light User Manual • If the background color of the Calibration Result is light yellow, you have achieved a medium quality calibration. You might be able achieve better eye tracking results by improving one or more points individually.

  • Page 36: The X Configuration Tool

    Tobii X1 Light User Manual 6 The X Configuration Tool The X Configuration Tool is a general software used by all Tobii X Series Eye Trackers for configuring the parameters necessary in order for accurate eye tracking to be possible.

  • Page 37: Setting Parameters In The X Configuration Tool

    Tobii X1 Light User Manual Setting parameters in the X Configuration Tool When using the Tobii X1 Light Eye Tracker without a mounting bracket or list, the user must specify all the positioning parameters in the X Configuration Tool. These are: •...

  • Page 38: Measuring The Active Display Area (D)

    In a setup where the stimuli is filmed by a scene camera the active display area must be calculated based on the calibration grid size. Reference point on the Tobii X1 Light All distance measurements should ideally be made from specific points on the rear of the eye tracker.

  • Page 39: Measuring The Distance To The Display Or Calibration Grid (B)

    Measuring the distance to the display or cali- bration grid (B) Measure the distance from the measuring point on the Tobii X1 Light Eye Tracker to the front of the active display on the monitor, projection screen, or TV screen, or in a scene camera setup to the virtual screen.

  • Page 40: Using A Setup With Side Offset

    Tobii X1 Light User Manual If the active display is located below the measuring point on the eye tracker, for example, in a projector setup, the value will be negative. Enter the value in the X Configuration Tool with a “-” in front to signify it as a negative value.

  • Page 41: Appendices

    More information regarding the accuracy and precision measurements can be found in the document Accuracy and precision test method for remote eye trackers, which can be downloaded from the Tobii website. A glossary can be found in 6.3 Appendix C: Glossary. Gaze accuracy...
  • Page 42 Tobii X1 Light User Manual Eye tracking specifications Sampling Variable sampling rate typ. 28-32Hz Total system latency 50-90 ms For blinks Immediate Time to tracking recovery After lost tracking 100-300 ms Freedom of head typ. 44 x 32 cm movement at 65 cm (17.3 x 12.6’’)

  • Page 43: Appendix B: Technical Specifications

    Tobii X1 Light User Manual Appendix B: Technical specifications Eye Tracking unit Eye tracking processing unit Embedded Weight 350 g (12.3 oz) 24.9 x 5.0 x 4.8 cm Unit Size (9.8 x 2.0 x 1.9’’) Micro USB Connectors Power connector...

  • Page 44: Appendix C: Glossary

    Sampling rate Number of data samples per second. The Tobii X1 Light Eye Tracker has a variable data-rate which is typically between 28 and 32 Hz, i.e. typically between 28 to 32 data samples per second are collected for each eye.
  • Page 45 B = eye position (midpoint between the left and the right eye) and C = stimuli point. Eye tracking Tobii Eye Trackers use two different techniques to determine technique eye position: 1. Bright pupil eye tracking, where an illuminator is placed close to the optical axis of the imaging device, causing the pupil to appear lit up (the same phenomenon that causes red eyes in photos).

  • Page 46: Appendix D: Software Installed With The Installation Cd

    Appendix D: Software installed with the instal- lation CD When running the installation CD the drivers and some software necessary for using the Tobii X1 Light Eye Tracker are installed. In the table below the installed software and its function is listed. Bonjour This is used for communication with the eye tracker and is a prerequisite for the other applications.

  • Page 47: Appendix E: Recommended Display Sizes

    Tobii X1 Light User Manual Centimeters Appendix E: Recommended display sizes The eye tracker can only do accurate eye tracking of a person’s eyes if the visual angle as seen from the person’s eyes does not exceed 27 degrees between the center of the eye tracker and any point on what the person is looking at.
  • Page 48 The display sizes below have been calculated to be within 27 degrees of viewing angle and, hence, suitable for being used with the Tobii X1 Light Eye Tracker. It might be possible for some users to use larger displays than the ones given below, but that will be at the user’s own risk of not being able to collect eye tracking data in the top...
  • Page 49 Tobii X1 Light User Manual...
  • Page 50 Tobii X1 Light User Manual...
  • Page 51 Tobii X1 Light User Manual...
  • Page 52 (Central European Time, GMT +1) (Central European Time, GMT +1) HEADQUARTERS, SWEDEN CENTRAL EUROPE CHINA JAPAN NORTH AMERICA Tobii Technology AB Tobii Technology GmbH Tobii Electronics Technology Tobii Technology, Ltd. Tobii Technology Inc Karlsrovägen 2D Niedenau 45 Suzhou Co. Ltd.

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