Method and apparatus for measuring spatial profiles of energy be

Details Method and apparatus for measuring spatial profiles of energy be Method and apparatus for measuring spatial profiles of energy be

1987-03-13

1989-01-10

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Electric lamp or discharge device

Vacuum tube

324404, 356406, 358218, G01R 3124

Patent

active

047976195

ABSTRACT:
An apparatus and method for measuring the spatial characteristics of color CRTs includes the scanning of an image of a white vertical line with a knife edge aperture and integrating the intensity values at each position of the knife edge. The centroids of the beams of the CRT are found by determining the X coordinants of the 50% points of the Y axis of the integral data, and the spatial line profiles are determined by differentiating the integral data. The integral data may be fitted to a Gaussian curve prior to analysis.

REFERENCES:
patent: 3649907 (1972-03-01), Youngbluth, Jr.
patent: 3657550 (1972-04-01), Brown et al.
patent: 4141043 (1979-02-01), Liu
patent: 4220919 (1980-09-01), Ruth
patent: 4408163 (1983-10-01), Burr et al.
Optical Radiation News (by EG&G Gamma Scientific, Inc.--dated Spring 1983).
A Unique Technique for Measuring Spatial Profiles of Color CRT Beams (by EG&G Gamma Scientific, Inc.--dated Sep. 5, 1986).

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