SMU 3-D light Pad Projector (image) Southern Methodist University Share Print E-Mail Caption The set-up for the SMU 3-D light pad includes this ultraviolet projector as well as a visible projector. The two project patterns of light into a chamber of photoactivatable dye. Wherever the UV light intersects with the green light it generates a 3-dimensional image inside the chamber. Credit SMU Usage Restrictions Please credit Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.