Tools for Vision Science

Visual Stimulus Displays

CRT Replacement
     ➤ VIEWPixx
     VIEWPixx /3D
     VIEWPixx /EEG
DLP LED Projector
     ➤ PROPixx

Display Drivers

CRT Driver
     ➤ DATAPixx
LCD Driver
     ➤ DATAPixx2

Subject Feedback

     ➤ Touch Panel
     ➤ Dual Handheld
     ➤ Tabletop

Calibration System

     ➤ X-Rite i1Pro
     ➤ X-Rite i1Display


Visual Testing Software

Tools for MRI

MRI Visual Stimulus Displays

DLP LED Projector

MRI Subject Feedback

     Dual Handheld

MRI Audio System




Visual Testing Software

     VPixx Program

Eye Tracking



Projector optimized for vision researchers

The PROPixx is a unique DLP LED projector which has been designed to be the most flexible display possible for vision research. The PROPixx features a native resolution of 1920 x 1080 and can be driven with refresh rates up to 1440 Hz with deterministic timing. The PROPixx uses high brightness LEDs as a light source, giving a larger color gamut and much longer lifetime than halogen light sources (60,000 hrs vs 2,000 hrs). Our LEDs also support high bit depth and high frequency full color stimulation, which would not be possible with a color-wheel/halogen architecture. For stereo vision applications, our high speed circular polarizer can project stereoscopic stimuli for passive polarizing glasses at up to 400 Hz.

The PROPixx also includes an array of peripherals which often need to be synchronized to video during an experiment. These include a stereo audio stimulator, a button box port for precise reaction-time measurement, triggers for electrophysiology and eye-tracking equipment, and even a complete analog I/O subsystem. You can now successfully synchronize all of your subject I/O to video refresh with microsecond precision.

The PROPixx is available with multiple projection lens options including short-throw lenses for CRT-replacement applications, and long-throw lenses for MRI/MEG applications.

As with all VPixx Technologies products, the PROPixx is field upgradable. If you need a new feature in order to follow some exciting new direction in your research, we can develop the functionality in our labs, then email you an update for your PROPixx.


• Display resolution: 1920(H) x 1080(V) pixels
• Display type: Texas Instruments DMD 0.95”
• Aspect ratio: 16×9
• Illumination system: RGB LED
• Contrast ratio: 2 000:1
• Lamp life: 60 000 hours via solid state illumination
• Up to 12 bits of resolution on each of the RGB channels
• Up to 500 Hz refresh rate (RGB color)
• Up to 1440 Hz refresh rate (Greyscale)

CIE 1931 color space diagram


• Front/rear table
• Front/rear ceiling


• Number of digital inputs: 24 on db-25 connector
• Input tolerance: 5 V


• Number of digital outputs: 24 on db-25 connector
• Maximum output current:
Source: 15 mA
Sink: 12 mA


• Number of channels: 16 (or 8 differential), on DB-25 connector
• Converter resolution: 16 bits
• Maximum sampling rate: 200 kSPS per channel
• Frequency programming modes:
Samples per second
Samples per video frame
Nanoseconds per sample
• Simultaneous sampling across all channels


• Number of channels: 4 on DB-25 connector
• Converter resolution: 16 bits
• Maximum sampling rate: 1 MSPS per channel
• Frequency programming modes:
Samples per second
Samples per video frame
Nanoseconds per sample
• Simultaneous output updates
• Output range: ±10 V
• Drive capability: ±25 mA, 250 mW per channel


• Audio line in, microphone in, speaker out, on 3.5 mm jacks
• Microphone sampling rate: 96 kHz
• Stereo DAC sampling rate 96 kHz

**These functionalities are available only with PROPixx full version (VPX-PRO-5001C)


P/N: VPX-PRO-5001C PROPixx Full Data acquisition system
P/N: VPX-PRO-5000A PROPixx Lite Data acquisition system




Available lenses

Throw Ratio
Focus Range
 Part Number
Super short-throw lens 0.73 : 1 3.18 – 4.27 ft VPX-ACC-6501
Short-throw lens 1.56 – 1.86 : 1 4.0 – 23.0 ft VPX-ACC-6502
Long-throw lens 1.85 – 2.40 : 1 4.0 – 32.0 ft VPX-ACC-6503
Super long-throw lens 2.4 – 4.0 : 1 4.0 – 39.0 ft VPX-ACC-6504
Super long-throw lens 3.3 – 5.94 : 1 4.0 – 40.0 ft VPX-ACC-6508
Super long-throw lens 5.4 – 9.9 : 1 5.0 – 40.0 ft VPX-ACC-6505
Super long-throw lens 8.9 – 14.83 : 1 5.0 – 40.0 ft VPX-ACC-6507


Lens Shift (maximum)
Vertical: 0.6 of frame if horizontal is at 0% position
Horizontal: 0.15 of frame if vertical is at 0% position
NOTE: 0.73 super short-throw lens has NO LENS SHIFT



400 Hz circular polarizer
Read more…

X-Rite i1Display Pro

Affordable Colorimeter
Read more…


Subject feedback
Read more…

VPixx Trolley

Trolley – 30″ to 43″ adjustable height
P/N: VPX-ACC-5204


Shielding enclosure
Read more…

Screen size vs throw distance The Throw distance is the distance measured from the front of the projector to the screen. This is an important consideration when it comes to projector installation as it determines whether or not you have enough room to install your projector with the desired screen size, and if your image will be the right size for your screen.