Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7638755 | Sensing absolute position of an encoded object | Mark R. Ayres, Larry Fabiny, Keith W. Malang | 2009-12-29 |
| 7149015 | Obliquity correction scanning using a prism mirror | Jan Hoogland | 2006-12-12 |
| 6914704 | Obliquity correction system | — | 2005-07-05 |
| 6825992 | Single component aspheric apodizer | — | 2004-11-30 |
| 6144470 | Holographic optical element with castellated aperture | Stephen W. Farnsworth | 2000-11-07 |
| 5949066 | System and method for creating and utilizing a sinusoidal based pattern sensor to achieve precise positioning of a movable element | James Patrick Rice, David M. Perry, Peter Van Laanen | 1999-09-07 |
| 5771122 | Optical beamsplitter | — | 1998-06-23 |
| 5657164 | Optical beamsplitter | — | 1997-08-12 |
| 5650874 | Optical beamsplitter | — | 1997-07-22 |
| 5646778 | Optical beamsplitter | — | 1997-07-08 |
| 5638193 | Method and apparatus for azimuthal multiplexing of holograms | Jahja I. Trisnadi | 1997-06-10 |
| 5568315 | Optical beamsplitter | — | 1996-10-22 |
| 5331622 | Compact optical head | Charles Henry Ernst | 1994-07-19 |
| 5245174 | Focus sensing apparatus utilizing a reflecting surface having variable reflectivity | Ivan Prikryl, Hollis O'Neal Hall, II | 1993-09-14 |
| 5155633 | Anamorphic achromatic prism for optical disk heads | Steven L. Grove | 1992-10-13 |
| 4998011 | Flat plate focus sensing apparatus | — | 1991-03-05 |
| 4441175 | Partial beam focus sensing in an optical recording system | — | 1984-04-03 |