Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6867921 | Focus-position compensator | Alex Harwit, Janusz Liberkowski | 2005-03-15 |
| 6791759 | Focus-position compensator | Alex Harwit, Janusz Liberkowski | 2004-09-14 |
| 5786940 | Optical system design optimization using an analytical figure of merit | — | 1998-07-28 |
| 5687022 | Mid-wave infrared lens system with liquid optical element | — | 1997-11-11 |
| 5682263 | Broad-band ultraviolet lens systems well-corrected for chromatic aberration | Robert D. Sigler | 1997-10-28 |
| 5627674 | Ultraviolet lens systems including liquid lens elements | — | 1997-05-06 |
| 5532880 | Laser beam expanders | — | 1996-07-02 |
| 5491583 | Infrared lens systems | — | 1996-02-13 |
| 5453878 | Laser beam expanders with plastic and liquid lens elements | — | 1995-09-26 |
| 5384657 | Laser beam expanders with glass and liquid lens elements | — | 1995-01-24 |
| 5373396 | Laser beam expanders with plastic and liquid lens elements | — | 1994-12-13 |
| 5329404 | Laser beam expander: 5X | — | 1994-07-12 |
| 5305150 | Laser beam expander: 10.times. | — | 1994-04-19 |
| 5210646 | Color-corrected optical systems and method of selecting optical materials therefor | Romeo I. Mercado | 1993-05-11 |
| 5204782 | Color-corrected optical systems | Romeo I. Mercado | 1993-04-20 |
| 5020889 | Color-corrected optical systems | Romeo I. Mercado | 1991-06-04 |
| 4966448 | Optimized apochromatic lens systems using inexpensive lens elements | — | 1990-10-30 |
| 4950041 | Lens systems comprising plastic and liquid lens elements | — | 1990-08-21 |
| 4932762 | Lens triplets | — | 1990-06-12 |
| 4915483 | Apochromatic lens triplets with aspherical lens elements | — | 1990-04-10 |
| 4913535 | Apochromatic lens systems | — | 1990-04-03 |
| 4911538 | Lens system comprising plastic and liquid lens elements with aspherical surfaces | — | 1990-03-27 |
| 4832472 | Mapping lens | — | 1989-05-23 |
| 4790637 | Color-corrected catadioptric systems | Romeo I. Mercado | 1988-12-13 |