发明名称 |
Apparatus for measuring the position of a light source disposed inside a lighthouse |
摘要 |
Measuring apparatus for measuring the position of a light source inside a lighthouse as used in the manufacture of phosphor screens of color picture tubes comprises a base plate and two optical projection devices which are directed on to the light source, and which each contain at least two position diodes. An evaluating circuit connected thereto ascertains the position of the light source and the result is fed to a display device.
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申请公布号 |
US4630909(A) |
申请公布日期 |
1986.12.23 |
申请号 |
US19850701415 |
申请日期 |
1985.02.14 |
申请人 |
STANDARD ELEKTRIK LORENZ AG |
发明人 |
FORKER, DIETER;HASSLER, JOACHIM;LAU, BERNHARD;SCHMIDT, ROLF |
分类号 |
G01B11/00;G01B11/03;H01J9/227;(IPC1-7):G03B41/00 |
主分类号 |
G01B11/00 |
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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