Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7839581 | Plastic optical viewer | Charles H. Caplan | 2010-11-23 |
| 6704142 | Magnification viewer | Charles H. Caplan, Frederick N. Bushroe, Anthony R. Ford | 2004-03-09 |
| 6692129 | Display apparatus including RGB color combiner and 1D light valve relay including schlieren filter | Kenneth P. Gross, Paul K. Manhart | 2004-02-17 |
| 6201640 | Magnification viewer | Charles H. Caplan, Frederick N. Bushroe, Anthony R. Ford | 2001-03-13 |
| 6163413 | Light-weight three-element clinical viewer | Charles H. Caplan | 2000-12-19 |
| 6061189 | Through-the-lens binocular viewer | Charles H. Caplan | 2000-05-09 |
| 5790323 | Light-weight high-magnification clinical viewer | Charles H. Caplan | 1998-08-04 |
| 5678089 | Autostereoscopic imaging apparatus and method using a parallax scanning lens aperture | Aron Bacs, Jr., Christopher A. Mayhew, Leo M. Fernekes, Stefan Rublowsky | 1997-10-14 |
| 5627690 | Light-weight three-element clinical viewer | Charles H. Caplan | 1997-05-06 |
| 5515209 | Light-weight high-magnification clinical viewer | Charles H. Caplan | 1996-05-07 |
| 5463500 | Light-weight three-element clinical viewer | — | 1995-10-31 |
| 4964718 | Optical corrector | John A. Van Hoogstrate | 1990-10-23 |
| 4842394 | Simplified high speed corrected projection lens system for curved image surfaces | — | 1989-06-27 |
| 4623776 | Ring of light laser optics system | Eric M. Palmer, Yefim P. Sukhman | 1986-11-18 |
| 4398810 | Fresnel lens system | Marvin P. Hodges | 1983-08-16 |
| 4278330 | Catadioptric virtual-zoom optical system | — | 1981-07-14 |
| 4249205 | Aspheric projection lens system utilizing concave image | — | 1981-02-03 |