| Patent | Date |
|---|
Application of the phase shifting diffraction interferometer for measuring convex mirrors and negative lenses
Grant 6,909,510 - Sommargren , et al. June 21, 2 | 2005-06-21 |
Absolute calibration of optical flats
Grant 6,876,456 - Sommargren April 5, 2 | 2005-04-05 |
Application of the phase shifting diffraction interferometer for measuring convex mirrors and negative lenses
App 20040150834 - Sommargren, Gary E. ; et al. | 2004-08-05 |
Absolute calibration of optical flats
App 20040061866 - Sommargren, Gary E. | 2004-04-01 |
Application of the phase shifting diffraction interferometer for measuring convex mirrors and negative lenses
Grant 6,704,112 - Sommargren , et al. March 9, 2 | 2004-03-09 |
Micromachined electrostatic vertical actuator
Grant 5,969,848 - Lee , et al. October 19, 1 | 1999-10-19 |
Phase shifting interferometer
Grant 5,933,236 - Sommargren August 3, 1 | 1999-08-03 |
Apparatus for increasing the frequency difference and stability of orthogonally polarized beams from a Zeeman split laser
Grant 5,586,133 - Sommargren December 17, 1 | 1996-12-17 |
Phase shifting diffraction interferometer
Grant 5,548,403 - Sommargren August 20, 1 | 1996-08-20 |
Flying height and topography measuring interferometer
Grant 5,218,424 - Sommargren June 8, 1 | 1993-06-08 |
Method and apparatus for generating a straight reference line
Grant 4,963,022 - Sommargren October 16, 1 | 1990-10-16 |
High accuracy differential plane mirror interferometer
Grant 4,950,078 - Sommargren August 21, 1 | 1990-08-21 |
Linear and angular displacement measuring interferometer
Grant 4,859,066 - Sommargren August 22, 1 | 1989-08-22 |
Angular displacement measuring interferometer
Grant 4,807,997 - Sommargren February 28, 1 | 1989-02-28 |
Straightness of travel interferometer
Grant 4,787,747 - Sommargren , et al. November 29, 1 | 1988-11-29 |
Angle measuring interferometer
Grant 4,746,216 - Sommargren * May 24, 1 | 1988-05-24 |
Apparatus for the measurement of the refractive index of a gas
Grant 4,733,967 - Sommargren March 29, 1 | 1988-03-29 |
Angle measuring interferometer
Grant 4,717,250 - Sommargren January 5, 1 | 1988-01-05 |
Differential plane mirror interferometer
Grant 4,693,605 - Sommargren September 15, 1 | 1987-09-15 |
Heterodyne interferometer system
Grant 4,688,940 - Sommargren , et al. August 25, 1 | 1987-08-25 |
Apparatus to transform a single frequency, linearly polarized laser beam into a high efficiency beam with two, orthogonally polarized frequencies
Grant 4,687,958 - Sommargren August 18, 1 | 1987-08-18 |
Method and apparatus for the measurement of the refractive index of a gas
Grant 4,685,803 - Sommargren August 11, 1 | 1987-08-11 |
Apparatus to transform a single frequency, linearly polarized laser beam into a beam with two, orthogonally polarized frequencies
Grant 4,684,828 - Sommargren August 4, 1 | 1987-08-04 |
Distance measuring interferometer and method of use
Grant 4,606,638 - Sommargren August 19, 1 | 1986-08-19 |
Interferometric wavefront measurement
Grant 4,594,003 - Sommargren June 10, 1 | 1986-06-10 |
Laser heterodyne surface profiler
Grant 4,456,339 - Sommargren June 26, 1 | 1984-06-26 |
Laser heterodyne surface profiler
Grant 4,353,650 - Sommargren October 12, 1 | 1982-10-12 |
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