发明名称 |
Cathode ray tube dynamic electron-optic eyebrow effect distortion correction |
摘要 |
In a color CRT with an in-line gun and a pin cushion correcting yoke, there is disclosed an eyebrow effect electronoptical distortion correction device comprising two pair of coils, each pair having a coil on each outer electron beam side of the neck in the plane of the beams. The coil pairs are spaced apart along the Z-axis between the gun and the yoke and are driven by a sawtooth current having a bow-tie envelope synchronous with the raster scan to correct the dynamic, antisymmetrical eyebrow effect apparent as a purity defect on the raster.
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申请公布号 |
US5248920(A) |
申请公布日期 |
1993.09.28 |
申请号 |
US19920959594 |
申请日期 |
1992.10.13 |
申请人 |
ZENITH ELECTRONICS CORPORATION |
发明人 |
GIOIA, NORMAN F.;GORSKI, RICHARD M.;WATSON, LIONEL A.;ADLER, ROBERT;CHIODI, WAYNE R. |
分类号 |
H01J29/70;H04N3/233 |
主分类号 |
H01J29/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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