Apparatus for measuring the position of a light source disposed

Details Apparatus for measuring the position of a light source disposed Apparatus for measuring the position of a light source disposed

1985-02-14

1986-12-23

Perkey, William B.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356121, 356141, 356152, G03B 4100, G03B 1126

Patent

active

046309098

ABSTRACT:
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.

REFERENCES:
patent: 3482495 (1969-12-01), Jameikis

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