发明名称 |
Device with an alteration means for the conversion of an image |
摘要 |
To reduce phenomena of distortion in an image intensifier tube, it is planned to provide its input with a permanent test pattern. The image of the test pattern is then read in real time and a deduction is made therefrom of the correction to be made to an image transmitted and converted by this intensifier tube. To create a permanent test pattern, references are made on the intensifier tube, on its input window. As a variant, the references are produced by an auxiliary laser source that illuminates the cathode of the tube by the rear.
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申请公布号 |
US6194700(B1) |
申请公布日期 |
2001.02.27 |
申请号 |
US19990286443 |
申请日期 |
1999.04.06 |
申请人 |
THOMSON TUBES ELECTRONIQUES |
发明人 |
PRADERE PHILIPPE;DE GROOT PAUL |
分类号 |
H04N5/32;H01J29/38;H01J29/89;H01J31/50;(IPC1-7):H01J40/14 |
主分类号 |
H04N5/32 |
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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