发明名称 |
CATHODE RAY TUBE HAVING MULTILAYER INTERFERENCE FILTER |
摘要 |
A cathode ray tube, such as a projection cathode ray tube, having a multilayer interference filter disposed between the cathodoluminescent screen and the interior side of the faceplate, the interference filter comprising alternate layers having high (H) and low (L) refractive indices, the high refractive index material being niobium pentoxide and the low refractive index material being either silicon oxide or magnesium fluoride. These filters are substantially free from the crazing which occurs in known filters when subjected to the normal thermal processing of cathode ray tubes.
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申请公布号 |
US5068568(A) |
申请公布日期 |
1991.11.26 |
申请号 |
US19900524718 |
申请日期 |
1990.05.15 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
DE VRIEZE, HENRICUS M.;ROOSEN, JOHANNES H. J.;VRIENS, LEENDERT |
分类号 |
H04N9/31;G02B5/28;H01J9/22;H01J9/24;H01J29/18;H01J29/20;H01J29/24;H01J29/28;H01J29/86 |
主分类号 |
H04N9/31 |
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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