Title:
プロジェクションシステム
Document Type and Number:
Japanese Patent JP2005526292
Kind Code:
A
Abstract:
The invention relates to a projection system and a driver for use in such a system. According to the invention it comprises a high pressure discharge projection lamp having a discharge tube enclosing a discharge space and a first and second main electrode, which system also comprises means to operate the projection lamp with an AC lamp current having a frequency of at least 3 MHz.
Inventors:
Petrus Her Antonis
Application Number:
JP2004506324A
Publication Date:
September 02, 2005
Filing Date:
May 16, 2003
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
F21S2/00; H04N5/74; H05B41/288; G03B21/14; H05B41/292; (IPC1-7): G03B21/14; F21S2/00; H04N5/74
Attorney, Agent or Firm:
Kosaku Sugimura
Kazuaki Takami
Hiroshi Tokunaga
Yoshiyuki Iwasa
Shiro Fujitani
Kiyoshi Kuruma
Kazuyuki Tomita
Kazuaki Takami
Hiroshi Tokunaga
Yoshiyuki Iwasa
Shiro Fujitani
Kiyoshi Kuruma
Kazuyuki Tomita