Reflecting optical system capable of compensating for the variation in polarization mode
Abstract
Abstract A REFLECTING OPTICAL SYSTEM WHICH COMPRISES TWO REFLECTING SURFACES SUCH AS MIRRORS OR THE LIKE EQUAL IN OPTICAL CHARACTERISTICS DISPOSED TO HAVE THE SAME PLANE OF INCIDENCE. A FIRST HALF-WAVELENGTH PLATE IS DISPOSED IN THE PATH OF LIGHT BETWEEN THE TWO REFLECTING SURFACES PERPENDICULARLY TO THE PATH OF LIGHT AND IN SUCH A MANNER THAT THE AXIS OF THE FIRST PLATE FORMS AN ANGLE OF 45* WITH RESPECT TO THE PLANE OF INCIDENCE OF THE FIRST REFLECTING SURFACE AND IF DESIRED, A SECOND HALF-WAVELENGTH PLATE IS DISPOSED IN THE PATH OF EMERGENT LIGHT FROM THE SECOND REFLECTING SURFACE PERPENDICULARLY TO THE OPTIC AXIS OF THE PATH OF EMERGENT LIGHT IN SUCH A MANNER THAT THE AXIS OF THE SECOND PLATE FORMS AN ANGLE OF 45* WITH RESPECT TO THE PLANE OF INCIDENCE OF THE SECOND REFLECTING SURFACE, WHEREBY THE LIGHT EMERGENT FROM THE OPTICAL SYSTEM IS ALWAYS ENSURED TO PRESENT TO SAME MODE OF POLARIZATION AS THAT OF THE INCIDENT LIGHT.
Inventors
- 👤 Tadaaki Yamamoto
- 👤 Toshiyuki Kasai
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 |