Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Arnd Ritz"'
Autor:
Griet S'heeren, Holger Moench, Arnd Ritz, Uwe Mackens, Wil Verbeek, Pavel Pekarski, Tony Hermans
Publikováno v:
SID Symposium Digest of Technical Papers. 38:955-958
Personal projectors are compact and affordable devices used for gaming, entertainment or photo projection. A very bright light source is at least as important as for standard front projectors. The new 50W Ujoy lamp system with 1mm arc enables efficie
Autor:
Ulrich Weichmann, Pavel Pekarski, Hermann Giese, Ulrich Hechtfischer, Jens Pollmann-Retsch, Guenther Derra, Ulrich Niemann, Arnd Ritz, Folke-Charlotte Noertemann, Gero Heusler, Ernst Fischer, Achim Gerhard Rolf Koerber, Holger Moench
Publikováno v:
Journal of Physics D: Applied Physics. 38:2995-3010
Projection systems have found widespread use in conference rooms and other professional applications during the last decade and are now entering the home TV market at a considerable pace. Projectors as small as about one litre are able to deliver sev
Publikováno v:
SPIE Proceedings.
Personal projection is a new way to use projectors for gaming, entertainment or photo projection. The requirements for this new category have been defined based on market research with focus groups. A screen brightness of 200-300lm out of compact and
Publikováno v:
SPIE Proceedings.
The optical properties of TaZrO x mixed oxide thin films are investigated. The films were deposited by reactive pulsed magnetron sputtering in a double magnetron set up using two Ta and Zr metallic targets. Depending on the mixture of the materials,
Autor:
Pavel Pekarski, Arnd Ritz, Hermann Giese, Achim Gerhard Rolf Koerber, Jens Pollmann-Retsch, Ulrich Hechtfischer, Holger Moench, Ulrich Weichmann, Folke-Charlotte Noertemann, Gero Heusler
Publikováno v:
SPIE Proceedings.
The past decade has seen a rapid development of projection systems. Projectors as small as only a few liters in size deliver several thousand screen lumens and are, with an efficacy of over 10 lm/W, the most efficient display systems realized today.
Autor:
Holger Moench, Arnd Ritz
Publikováno v:
Optical Interference Coatings.
Dichroic coatings are prepared on short arc lamps by magnetron sputtering. Their optical properties and long-term temperature stability up to 1000°C are examined. The influence on lamp characteristics and application in projection systems are discus
Autor:
Pavel Pekarski, Arnd Ritz, Gero Heusler, Jens Pollmann-Retsch, Holger Moench, Achim Gerhard Rolf Koerber, Ulrich Hechtfischer
Publikováno v:
SPIE Proceedings.
Projection systems for large screens have made tremendous progress during the last years, both in terms of performance and size reduction. Improved UHP lamp systems made a major contribution to enable the new generation of projectors. The arc gap is
Autor:
Arnd Ritz, Hans Lydtin
Publikováno v:
MRS Proceedings. 269
Plasma activated CVD in a remote operation mode is applied to the deposition of dielectric layers on extended substrates. Layer thickness uniformity of ±1% over areas of 80mm diameter is demonstrated. The microwave applicator sustaining the plasma s
Autor:
Holger Mönch, Günther Derra, Achim Körber, Carsten Deppe, Arnd Ritz, Ulrich Weichmann, Folke‐Charlotte Nörtemann, Hermann Giese, Thomas Krücken, Ulrich Niemann, Mark Carpaij, Jens Pollmann-Retsch, Ulrich Hechtfischer, Johannes Baier, Uwe Mackens, Pavel Pekarski
Publikováno v:
Journal of the Society for Information Display. 15:789
— Projection systems have found widespread use in conference rooms and other professional applications during the last decade and are now entering the home-TV market with considerable pace. Projectors as small as about one liter are nowadays able t
Autor:
Gero Heusler, Ulrich Hechtfischer, Arnd Ritz, Ulrich Weichmann, Hermann Giese, Folke-Charlotte Noertemann, Jens Pollmann-Retsch, Holger Moench, Achim Gerhard Rolf Koerber, Pavel Pekarski
Publikováno v:
SID Symposium Digest of Technical Papers. 34:758
Shorter arcs and higher gas pressures increase the collection efficiency and produce a spectrum which is ideal for video projection. Taking into account the physical lamp efficiency ideal arc lengths are given. New UHP products will realise 30% more