Design and manufacture of spectrally selective reflecting coatings for the use with laser display projection screens.
To provide screens for laser projection that improve contrast, a spectrally selective reflecting filter was designed by using genetic algorithms to overcome the problem of unknown starting values. Colormetrics rather than fixed targets were used for evaluation. Various selective filters were deposited upon glass as well as upon solid and flexible plastic substrates by reactive mid-frequency magnetron sputtering. For process control, in situ spectroscopic ellipsometry was applied.
Rickers
Christoph
C
Fraunhofer Institute for Thin Films and Surface Engineering, Braunschweig, Germany. rickers@ist.fhg.de
Vergöhl
Michael
M
Klages
Claus-Peter
CP