Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5852592 | Device for scanning an optically readable record carrier | — | 1998-12-22 |
| 5844870 | Device for scanning an optically readable record carrier | — | 1998-12-01 |
| 5841746 | Apparatus for scanning an optically readable record carrier | — | 1998-11-24 |
| 5757017 | Imaging system and apparatus for ultraviolet lithography | — | 1998-05-26 |
| 5734511 | Wide angle objective system | — | 1998-03-31 |
| 5732065 | Optical information carrier including standard and high density layers | Gerardus J. J. Vos | 1998-03-24 |
| 5708638 | Device for optically scanning a recording medium by focusing the best focus or the paraxial focus to the information layer | Igolt Pieter Douwes Ubbens, James Coombs, Jacob Sonneveld, Jacobus P. C. Kroon, Petrus Theodorus Jutte | 1998-01-13 |
| 5640008 | Measuring device for determining the displacement of a movable object | Johannes Wilhelmus Dorotheus Bosch, Joannes Gregorius Bremer | 1997-06-17 |
| 5467335 | Beam-shaping optical element and device for converting a beam having a first cross-section into a beam having a second cross-section | — | 1995-11-14 |
| 5253038 | Interferometric device for detecting a centering error | Gijsbertus Bouwhuis | 1993-10-12 |
| 5168490 | Record carrier with optically readable phase structure having tracks with different phase depths and apparatus for reading such a record carrier | — | 1992-12-01 |
| 5071237 | Zoom lens for an electronic camera | Albert Smid | 1991-12-10 |
| 5068751 | Three element grating objective and grating-beam shaper, and optical scanning device | Willem G. Opheij | 1991-11-26 |
| 5029255 | Optical scanning device including mirror objective having two windows at least one having an aspherical surface | Willem G. Opheij, Johannes J. Baalbergen, Alexius J. T. Van Sambeeck | 1991-07-02 |
| 5026149 | Projection lens system | — | 1991-06-25 |
| 5016994 | Projection-lens system | — | 1991-05-21 |
| 4986641 | Retrofocus objective lens and optical scanning device provided with such a lens | — | 1991-01-22 |
| 4940890 | Optical scanning device, mirror objective suitable for use in said device and optical write and/or read apparatus provided with said device | Willem G. Opheij | 1990-07-10 |
| 4924082 | Optical scanning device, mirror objective suitable for use in said device and optical write and/or read apparatus provided with said device | Willem G. Opheij | 1990-05-08 |
| 4872748 | Projection-lens system | — | 1989-10-10 |
| 4835380 | Scanning device for an optical recording and/or reproducing apparatus | Willem G. Opheij | 1989-05-30 |
| 4668056 | Single lens having one aspherical surface | Albert Smid | 1987-05-26 |
| 4641929 | Biaspherical lens | — | 1987-02-10 |
| 4630249 | Method of recording information in a magneto-optical record carrier, apparatus for carrying out the method, and magneto-optical record carrier for use in an apparatus for carrying out the method | Marino G. Carasso | 1986-12-16 |
| 4556967 | Record carrier having an optically readable information structure comprised of information areas of two different phase depths | — | 1985-12-03 |