Pierre-Alexandre Blanche, Ph.D.
- 3D Display
- Optical Switch
- Optical Computing
- Photorefractive Polymer
- Volume Phase Grating
The Holographic 3D display project
The aim of this project is to develop an holographic 3D display using photorefractive polymer device (For an overview of different 3D technologies, click here).
Photorefractive polymers are dynamic, and fully reversible holographic recording material (see this section). So they can be used to write, erase, and refresh holograms. By writing the holograms at video rate, we ultimately can make a display.
Holograms are recorded into the polymer using the principle of stereography. This means the diffraction pattern is recorded pixel by pixel, and the data can come from various image sources, like medical instrument, observation satelite, CAD models... And even our own live capture system composed of 16 cameras.
this system, we demonstrated a telepresence application by filming a
person in one room and sending the hologram data over the internet to
be printed in another location. There the audience can see that person
The current performances we have demonstrated are: 12x12 inches size, full color based on RGB, 2 second recording time (for 4x4"), full parallax, 45° angle of view, no material degradation over 2 years.
Images and videos (click to play or enlarge)
Disney XD team spent two days in our lab for this segment of the Marvel Universe explaining 3D holographic imaging. See the video on youtube.
Color, full parallax, telepresence (November 2010)
The team (Feb 2008): P.-A. Blanche, N.
Peyghambarian and S. Tay in front of the setup.