Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842374 | Unitary prepolarizing prism assembly for a four color liquid crystal light valve image projector | — | 1989-06-27 |
| 4836649 | Optical layout for a three light valve full-color projector employing a dual relay lens system and a single projection lens | Donald E. Sprothbery | 1989-06-06 |
| 4826293 | Electron beam addressed liquid crystal light valve with input sheet conductor | Jan Grinberg, Nubuo J. Koda, Philip G. Reif, William P. Bleha, Jr., Murray S. Welkowsky | 1989-05-02 |
| 4826311 | Prism assembly with three periscopes and projection lenses for a single light valve full-color projector | — | 1989-05-02 |
| 4824214 | Unitary prepolarizing prism assembly for a four color liquid crystal light valve image projector | — | 1989-04-25 |