Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7492531 | Apochromatic condenser | — | 2009-02-17 |
| 7289271 | Tube lens unit with chromatically compensating effect | — | 2007-10-30 |
| 5488512 | Color corrected ocular | — | 1996-01-30 |
| 5103341 | UV-capable dry lens for microscopes | Wilhelm Ulrich | 1992-04-07 |
| 5032011 | Transmitted-light illuminating arrangement for a microscope | — | 1991-07-16 |
| 4863249 | Catadioptric objective system for imaging a diode line | — | 1989-09-05 |
| 4786161 | Apparatus for examination and surgery of the anterior and posterior portions of the eye | Ortwin Muller, Albrecht Vogel, Ulrich Lemcke, Gerhard Hanemann, Fritz Strahle +1 more | 1988-11-22 |
| 4691997 | Microscope tube | — | 1987-09-08 |
| 4669839 | Optical system for therapeutic use of laser light | — | 1987-06-02 |
| 4606617 | Adapter for illumination or laser radiation for surgical microscopes | — | 1986-08-19 |
| 4525042 | Optical system of variable focal and back-focal length | — | 1985-06-25 |
| 4523821 | Device for examining anterior sections of the eye | Walter Lang, Dieter Muller, Roland Wanner, Peter Niesel | 1985-06-18 |
| 4518231 | Stereomicroscope | Fritz Strahle | 1985-05-21 |
| 4465348 | Apparatus for the subjective and objective determination of refraction | Walter Lang, Erich Blaha | 1984-08-14 |
| 4427269 | Method and apparatus for automatically compensating for rotation of images in articulated optical systems | Walter Lang, Erich Blaha, Roland Schmauder | 1984-01-24 |
| 4420219 | Optical waveguide connector using aspheric lenses | — | 1983-12-13 |
| 4411502 | Ophthalmological instrument for examination of anterior and posterior portions of the eye | Walter Lang, Kurt S. Schulz, Gunther Summerer | 1983-10-25 |
| 4403841 | Apparatus for examining anterior portions of the eye | Walter Lang | 1983-09-13 |
| 4365871 | Optical system for microscopes | — | 1982-12-28 |
| 4364629 | Operation microscope having a small working distance | Walter Lang | 1982-12-21 |
| 4272165 | Optical system for illuminating the ground of the eye | Albrecht Vogel | 1981-06-09 |
| 4270842 | Optical system for forming an image of the retina | Werner Bohning | 1981-06-02 |
| 4249802 | Ophthalmological instrument | Gunther Summerer | 1981-02-10 |
| 4248505 | Ophthalmological instrument | Gunther Summerer, Ekkehard Stern | 1981-02-03 |
| 4222634 | Wide angle objective for examination of the eye | — | 1980-09-16 |