COLOUR DISPLAY TUBE COMPRISING AN IN-LINE ELECTRON GUN
摘要
A colour display tube comprises an in-line electron gun for generating three co-planar electron beams having a mean lens comprising a first and second lens electrode for producing a focusing lens field for focusing the electron beams. At least one of said lens electrodes has a correction element for tuning the astigmatism of the lens field. The correction element comprises three co-linear apertures for passing the electron beams, the outer apertures of which are funnel-shaped, the wide end of the funnel-shape being directed away from the centre aperture.
申请公布号
WO9621939(A1)
申请公布日期
1996.07.18
申请号
WO1995IB01066
申请日期
1995.11.27
申请人
PHILIPS ELECTRONICS N.V.;PHILIPS NORDEN AB
发明人
ADRIAANSE, JAN, PETER;BOHLANDER, JOHANNES, HENDRICUS;VAN DER POEL, WILLIBRORDUS, ADRIANUS, JOHANNES, AN