Inventor
FISCHER HANNS E
DE7 patents
Patents
7 patentsUS5497049AMar 5, 1996
High pressure mercury discharge lamp
PHILIPS CORP104 citations96
US5109181AApr 28, 1992
High-pressure mercury vapor discharge lamp
PHILIPS CORP177 citations96
US5608294AMar 4, 1997
High pressure lamp operating circuit with suppression of lamp flicker
PHILIPS CORP117 citations93
US4866327ASep 12, 1989
Gas discharge lamp with microporous aerogel
PHILIPS CORP28 citations91
US6239556B1May 29, 2001
Long life discharge lamp operating circuit with reduced lamp flicker
PHILIPS CORP23 citations89
US4700107AOct 13, 1987
High-pressure discharge lamp having a tungsten sheet electrode
PHILIPS CORP7 citations72
US5689156ANov 18, 1997
Circuit arrangement for detecting the amount of deposited electrode material on the wall of a lamp vessel
PHILIPS CORP0 citations49