Issued Patents All Time
Showing 1–25 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9479686 | Zoom lens optical system | Melvyn H. Kreitzer | 2016-10-25 |
| 8872435 | LED light for examinations and procedures | Melvyn H. Kreitzer, Kevin M. Montgomery, Brian D. Rau, Thomas L. Treon | 2014-10-28 |
| 8382293 | Light source module | William E. Phillips, III, Zhisheng Yun | 2013-02-26 |
| 7740387 | Backlight wedge with side mounted light source | John C. Schultz, William J. Bryan, Michael A. Meis | 2010-06-22 |
| RE39911 | Wide field of view projection lenses for compact projection lens systems employing pixelized panels | — | 2007-11-06 |
| 7230770 | Projection lenses having color-correcting rear lens units | Melvyn H. Kreitzer | 2007-06-12 |
| RE39424 | Telecentric lens systems for forming an image of an object composed of pixels | — | 2006-12-12 |
| 7145729 | Foldable projection lenses | Melvyn H. Kreitzer | 2006-12-05 |
| 7133084 | Lens systems for projection televisions | Michael B. Larson, Richard J. Wessling | 2006-11-07 |
| 7123421 | Compact high performance zoom lens system | Iain A. Neil, Takanori Yamanashi | 2006-10-17 |
| 7019793 | Lens systems for projection televisions | Michael B. Larson, Richard J. Wessling | 2006-03-28 |
| 7002753 | Color-corrected projection lenses for use with pixelized panels | — | 2006-02-21 |
| 6980365 | Diffractive lens optical design | — | 2005-12-27 |
| 6791629 | Lens systems for projection televisions | Michael B. Larson, Richard J. Wessling | 2004-09-14 |
| 6563648 | Compact wide field of view imaging system | Philip Gleckman | 2003-05-13 |
| 6563650 | Compact, telecentric projection lenses for use with pixelized panels | — | 2003-05-13 |
| 6509937 | High performance projection television lens systems | — | 2003-01-21 |
| 6445512 | Projection television lens systems having improved modulation transfer functions | — | 2002-09-03 |
| 6417971 | Zoom projection lens having a lens correction unit | — | 2002-07-09 |
| 6411444 | Lenses for electronic imaging systems having long wavelength filtering properties | — | 2002-06-25 |
| 6324014 | Wide field of view projection lenses for compact projection lens systems employing pixelized panels | — | 2001-11-27 |
| 6297860 | Partial color-corrected projection lens system | — | 2001-10-02 |
| 6195209 | Projection lenses having reduced lateral color for use with pixelized panels | Melvyn H. Kreitzer | 2001-02-27 |
| 6094311 | LCD projection lens | — | 2000-07-25 |
| 6025959 | Color corrected projection lenses for use with curved faceplate cathode ray tubes | — | 2000-02-15 |