Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7768211 | Method and circuit arrangement for operating a high-pressure gas discharge lamp | Carsten Deppe | 2010-08-03 |
| 7654696 | Lighting unit | Jens Pollmann-Retsch, Wouter Maes, Edmond Verstraeten | 2010-02-02 |
| 7586244 | Ultra-high pressure discharge lamp provided with a multi-layered interference filter on an outer surface of the lamp | Arnd Ritz | 2009-09-08 |
| 7577318 | Wavelength conversion layers with embedded crystallites | Gero Heusler | 2009-08-18 |
| 7503656 | Projection device for simultaneously generating a plurality of mutually spaced, holographic frames of one and the same image by means of a holographic screen | — | 2009-03-17 |
| 7425932 | Projection system featuring light source luminuous flux sensing and compensation | — | 2008-09-16 |
| 7329009 | Projection system | Peter Lurkens, Carsten Deppe, Winston Donald Couwenberg, Johannis Antonie Amerens Toonen, Roy Hendrik Zundert | 2008-02-12 |
| 7327096 | Electrode temperature differential operation of a discharge lamp | Xaver Riederer, Carsten Deppe, Peter Lurkens | 2008-02-05 |
| 7285920 | Method and circuit arrangement for operating a high-pressure gas discharge lamp | Xaver Riederer, Carsten Deppe | 2007-10-23 |
| 7279826 | Reflector lamp with a partially reflective burner | Arnd Ritz | 2007-10-09 |
| 7273284 | Image projector with intensity-controlled light source | Carsten Deppe | 2007-09-25 |
| 7128441 | Video projection system | — | 2006-10-31 |
| 7064495 | Electronic circuit and method of supplying energy to a high-pressure gas-discharge lamp | Peter Lurkens | 2006-06-20 |
| 6278244 | Circuit arrangement for operating a discharge lamp in synchronism with an image writing signal | Michel A. Hevinga, Xaver Riederer | 2001-08-21 |
| 5997143 | Optical projection devices including a lens plate integrator | Gunther Hans Derra | 1999-12-07 |
| 5689156 | Circuit arrangement for detecting the amount of deposited electrode material on the wall of a lamp vessel | Gunther Hans Derra, Hanns E. Fischer, Hans G. Ganser | 1997-11-18 |
| 5608294 | High pressure lamp operating circuit with suppression of lamp flicker | Gunther Hans Derra, Hanns E. Fischer, Hans G. Ganser | 1997-03-04 |