Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11213198 | System and method for the rapid measurement of the visual contrast sensitivity function | Gregory A. Williby | 2022-01-04 |
| 10416039 | Interferometer having a reference fluid tank with a prism and a motion matching window for characterizing a contact lens | James W. Haywood, Kyle Heideman, Russell T. Spaulding, Gregory A. Williby | 2019-09-17 |
| 10362934 | System and method for the rapid measurement of the visual contrast sensitivity function | Gregory A. Williby | 2019-07-30 |
| 10288522 | Characterizing the surface of a contact lens with an immersed reference prism | James W. Haywood, Kyle Heideman, Russell T. Spaulding, Gregory A. Williby | 2019-05-14 |
| 10145757 | Measuring ophthalmic lens using a prism with phase shifting mirror and a fluid in reference arm | James W. Haywood, Kyle Heideman, Russell T. Spaulding, Gregory A. Williby | 2018-12-04 |
| 9655511 | Apparatus and method to obtain clinical ophthalmic high order optical aberrations | Bruce M. Pixton, Gregory A. Williby, Russell T. Spaulding | 2017-05-23 |
| 8641194 | System for in vivo analysis of tear film in the human eye via phase shifting interferometry | Brian C. Primeau, James W. Haywood, Gregory A. Williby | 2014-02-04 |
| 8427636 | Cuvette for ophthalmic lens | Simon Prince, Michael Sherwood, Robert E. Fischer, Syed Tariq Shafaat, Shawn Mulcahey +6 more | 2013-04-23 |
| 7688453 | Interferometry testing of lenses, and systems and devices for same | Gregory A. Williby, Russell T. Spaulding, Larry G. Jones, James W. Haywood | 2010-03-30 |
| 6341181 | Mid-spatial frequency digital boost filter | Andrew E. Lowman | 2002-01-22 |
| 5075560 | Moire distance measurements using a grating printed on or attached to a surface | Russell J. Palum | 1991-12-24 |
| 5075562 | Method and apparatus for absolute Moire distance measurements using a grating printed on or attached to a surface | Russell J. Palum, Kevin Sullivan | 1991-12-24 |
| 4988886 | Moire distance measurement method and apparatus | Russell J. Palum | 1991-01-29 |
| 4987496 | System for scanning halftoned images | — | 1991-01-22 |
| 4794550 | Extended-range moire contouring | — | 1988-12-27 |
| 4791584 | Sub-nyquist interferometry | — | 1988-12-13 |
| 4575193 | Optical spatial frequency filter | — | 1986-03-11 |
| 4460259 | Single lens rangefinder device having light emitter and detector | David Lambeth, James W. Meyer | 1984-07-17 |
| 4331877 | Transverse tomography with optical filtering | Harrison H. Barrett, William Swindell, Scott Gordon | 1982-05-25 |
| 4329588 | Polarization switched optical filtering for transverse tomography | Harrison H. Barrett, William Swindell | 1982-05-11 |