| 9069134 |
Method for producing an optical splitter cascade and optical assembly |
Stefan Kufner, Maria Kufner, Wolfgang Foss, Marco Bock, Frank Baetz |
2015-06-30 |
| 6305454 |
Venetian type blind having pivot slat and tilting slat |
Ren Judkins |
2001-10-23 |
| 6253823 |
Headrail for cut down venetian type blinds |
Cletis F. Swopes, Ren Judkins |
2001-07-03 |
| 5114453 |
Lightwave guide produced by ion exchange of cs+ ions |
Werner Schumann |
1992-05-19 |
| 5004707 |
Lightwave guide produced from special substrate glasses by ion exchange against CS.sup.+ ions |
Werener Schumann |
1991-04-02 |
| 4824809 |
Optical CdO and ThO.sub.2 -free glass with refractive indices of 1.73-1.78 abbe numbers of 30-34, and high devitrification stability |
Danuta Grabowski |
1989-04-25 |
| 4814299 |
Optical glass with refractive index 1.60, an abbe number 58, with high chemical stability and resistance to phase separation and crystallization |
Volkmar Geiler |
1989-03-21 |
| 4734389 |
Highly refractive optical glass with refractive indices >1.83 and Abbe numbers <25, and with very good chemical stability |
Danuta Grabowski, Volkmar Geiler |
1988-03-29 |
| 4721690 |
High PbO-content glasses in the system SiO.sub.2 --PbO--M.sub.2 O with increased chemical stability |
Danuta Grabowski, Burkhard Speit, Volkmar Geiler |
1988-01-26 |
| 4719186 |
Optical and ophthalmic glass with refractive indices greater than or equal to 1.56, Abbe numbers greater than or equal to 40 and densities less than or equal to 2.70 g/cm.sup.3 |
Karl Mennemann, Georg Gliemeroth, Burkhard Speit, Volkmar Geiler, Hans-Georg Krolla +1 more |
1988-01-12 |
| 4686196 |
Phototropic glass with a refractive index greater than or equal to 1.59, an abbe number greater than or equal to 44 and a density less than or equal to 3.0 g/cm.sup.3 |
Georg Gliemeroth, Uwe Eichhorn, Eva Hoelzel, Burkhard Speit |
1987-08-11 |
| 4584279 |
Optical glass with refractive indices>1.90, Abbe numbers>25 and high chemical stability |
Danuta Grabowski, Volkmar Geiler, Karl Mennemann, Georg Gliemeroth |
1986-04-22 |
| 4562161 |
Optical and ophthalmic glass with refractive indices greater than or equal to 1.56, Abbe numbers greater than or equal to 40 and densities less than or equal to 2.70 g/cm.sup.3 |
Karl Mennemann, Georg Gliemeroth, Burkhard Speit, Volkmar Geiler, Hans-Georg Krolla +1 more |
1985-12-31 |
| 4526874 |
Optical light weight glass with a refractive index of >1.70, an Abbe index of >22 and a density of <3.5 G/CM.sup.3 |
Danuta Grabowski geb. Marszalek, Volkmar Geiler, Karl Mennemann |
1985-07-02 |
| 4508834 |
Spectacle glass with increased refractive index |
Georg Gliemeroth, Burkhard Speit, Volkmar Geiler, Hans-Georg Krolla, Lothar Meckel |
1985-04-02 |
| 4485178 |
Phototropic glass with a brown tint in the irradiated state |
Georg Gliemeroth, Uwe Eichhorn, Eva Holzel, Hans-Georg Krolla, Burkhard Speit +2 more |
1984-11-27 |