Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684612 | Method and system for maintaining and controlling the signal-to-noise ratio of hologams recorded in ferroelectric photorefractive materials | Jeffrey P. Wilde | 1997-11-04 |
| 5665493 | Gated recording of holograms using rare-earth doped ferroelectric materials | Yu Sheng Bai, Ravinder Kachru, Roger Morton MacFarlane | 1997-09-09 |
| 5640256 | Dynamic multiple wavelength filter using a stratified volume holographic optical element | Raymond De Vre | 1997-06-17 |