U.S. Philips Corporation

Alexander R Van Schoonhoven

Johannes H Spruit

Leendert Vriens

Aart A Van Gorkum

Arne L Duwaer

A projection color television system having an improved resolution and luminance comprises red, green and blue color emitting tubes, the electron beams of which are focused onto their respective screens. In order to compensate for the strong saturation of the blue phosphor, and simultaneously to take advantage of the relatively fast decay of this phosphor, the blue color emitting tube is a single gun, multispot display tube. The increase in light output obtainable from the blue color emitting tube is matched by providing interference filters in the red and green color emitting display tubes and optionally in all three red, green and blue emitting tubes.

Growing community of inventors

Eindhoven, Netherlands

Alexander R Van Schoonhoven