Focussing solenoid, application thereof and a proc

专利名称：Focussing solenoid, application thereof and

a process for manufacturing same

发明人：Pierre Caillat申请号：US06/470526申请日：19830228公开号：US04511870A公开日：19850416

摘要：The present invention provides a focussing solenoid for focussing an electronbeam in a picture taking tube. This focussing solenoid comprises a sleeve which has ahelical etching in which are housed the turns of a first layer of wire. For all the otherlayers of wire wound in a helix about the sleeve, the slope of the turns of the helix withrespect to the sleeve is substantially the same and the turns of one layer are guided bythe turns of the preceding layer. Connections connect the layers together so that all thelayers have the same winding direction about said sleeve.

申请人：THOMSON-CSF

代理人：Roland Plottel

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