Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7230717 | Pixelated phase-mask interferometer | Neal Brock, James E. Millerd, John B. Hayes | 2007-06-12 |
| 7230718 | Simultaneous phase-shifting fizeau interferometer | James E. Millerd | 2007-06-12 |
| 7057737 | Common optical-path testing of high-numerical-aperture wavefronts | James E. Millerd, Neal Brock, John B. Hayes | 2006-06-06 |
| 7057738 | Simultaneous phase-shifting Fizeau interferometer | James E. Millerd | 2006-06-06 |
| 5502566 | Method and apparatus for absolute optical measurement of entire surfaces of flats | Chiayu Ai, Lian SHAO, Robert E. Parks | 1996-03-26 |
| 5398112 | Method for testing an optical window with a small wedge angle | Chiayu Ai | 1995-03-14 |
| 4832489 | Two-wavelength phase-shifting interferometer and method | Katherine Creath | 1989-05-23 |
| 4639139 | Optical profiler using improved phase shifting interferometry | Keith N. Prettyjohns | 1987-01-27 |