Koninklijke Philips Corporation N.v.

North American Philips Corporation

Gregory W Keck

Stephen Magocs

Michael B Larson

Robert L Lyle, Jr

Carl J Gilman

In a projection display system for example, a projection lens includes a non-radially symmetrical light stopped that is painted or otherwise applied directly to the surface of an optical lens element of the projection lines.

Non-symmetrical light stop

A power supply includes a main power supply section having power dissipating components therein and a stand-by power supply section. When the main power supply section is off, the stand-by power supply section uses the power dissipating components in the main power supply section to dissipate waste power. When the main power supply section is on, power from a secondary power supply driven by the output from the main power supply section is used to drive the stand-by power supply section thereby reducing any power dissipating requirements of the stand-by power supply section.

Growing community of inventors

Knoxville, TN, United States of America

Gregory W Keck