U.S. Philips Corporation

Adrianus H E Van Rijsewijk

Edwin A Montie

Jeroen Van Engelshoven

Johannes Th Peerlings

A picture display device comprises an evacuated envelope and is provided at a first side with an electroluminescent display screen and at an opposite side with an electron gun (,). Between the electron gun (,) and the display screen, the device comprises deflection means with which an electron beam generated by the electron gun (,) can be deflected during operation. The electron gun (,) has at least an electron beam-generating portion (,) and is provided with a main lens system (,) having a first electrode (,), a final electrode (,) and at least one intermediate electrode (,) across which a main lens voltage is gradually applied step-wise during operation so as to form an electron-optical main focusing lens. The intermediate electrode(s) (,) comprise a plurality of separate parts (,) whose main faces are positioned against each other and are interconnected.

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Sittard, Netherlands

Adrianus H E Van Rijsewijk