Liquid crystal optical cell with selected energy scattering
Abstract
Abstract AN OPTICAL CELL INCLUDES A PAIR OF SPACED-APART WALLS, AT LEAST ONE OF WHICH IS TRANSPARENT TO RADIANT ENERGY IN A WAVELENGTH BAND TO BE ACCOMMODATED BY THE CELL AND IS POSITIONED FOR INCIDENCE OF THE RADIANT ENERGY THEREON. A LIQUID CRYSTAL MEDIUM IS INTERPOSED BETWEEN AND IN CONTACT WITH THE OPPOSING SURFACES OF THE CELL WALLS. THE CRYSTALLINE PLANES OF THE LIQUID CRYSTAL MEDIUM ARE NORMALLY DISPOSED TO PERMIT PASSAGE OF COHERENT RADIANT ENERGY THROUGH THE MEDIUM TO IMPINGE ON THE OUTER WALL. WHEN SUCH PASSAGE IS TO BE RESTRICTED, THE CRYSTALLINE PLANES ARE SUBJECTED TO SHEARING TO RANDOMLY SCATTER AND THEREBY RENDER INCOHERENT THE RADIANT ENERGY INCIDENT ON THE LIQUID CRYSTAL MEDIUM.
Inventors
- 👤 Roy Pietsch
- 👤 Bernard L Lewis
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |