U.S. Philips Corporation

Ronald J De Man

Ronald Van Der Wilk

Jacobus H Jamar

Bernardus H Dekkers

Display tube including a convergence correction device which comprises a plurality of correction coils having coplanar axes and being arranged around the tube neck. The coils are of the planar type. More specifically, there are two sets of four coils for generating two differently oriented four-pole fields and two sets of six coils for generating two differently oriented six-pole fields, while all these coils are arranged on one flexible support which is wound around the tube neck a number of times, for example, one set of coils for each turn.

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Eindhoven, Netherlands

Ronald J De Man