Fiber Optic Trackball

Model No: HH-TRK-1

The fiber optic trackball is designed to give a mouse-like computer response option for use in special environments like MRI or MEG where metal or electronics could hinder data acquisition, degrade image quality, or pose safety risks. The all-plastic trackball works on light signals from our electronic interface which is placed outside the magnet or MEG room. A complete system includes the trackball handheld, the electronic interface, and the removable fiber optic bundle.

Description

• Two-axis shaft encoder cursor control
• Two side buttons
• All plastic construction
• Works with the standard fORP interface
• 10 foot long fiber pigtailed connector

• Two standard outputs under Windows XP:
• USB HID gamepad with 2 buttons
• Serial mouse
• Special outputs available in USB, serial and PS/2.

PS2 Output

• Special system available with PS2 output to use as
  optical trackball/mouse in for Brain Suite. Works with KVM switch.

Dimensions

• Overall dimensions:
  4 in. x 5.75 in. x 1.75 in.
  10 cm x 15 cm x 4 cm

Complete Trackball System

Fiber optic trackball system includes the electronic interface, 12-fiber bundle and the trackball handheld.

Trackball and Joystick Comparison

The trackball only produces movement when it is turned, so it is more easily controlled. It does require a light touch
and should be used before the task. The buttons are less definite than the joystick buttons.

The joystick produces movement whenever it is moves away from the center, so it is less easily controlled.
There is a short initialization period when it is turned on when the joystick should be stationary. There is a good
neutral spot which will roduce no movement. The buttons are just like those on our button boxes.

Generally, the trackball works better as a mouse and the joystick works better as a game controller.