Method for determining the average width of luminescent stripes

Details Method for determining the average width of luminescent stripes Method for determining the average width of luminescent stripes

1980-02-11

1981-08-25

Willis, Davis L.

Radiant energy

Luminophor irradiation

With ultraviolet source

G01N 2164

Patent

active

042861640

ABSTRACT:
In the novel method, the widths of the parallel luminescent stripes of a luminescent viewing screen are scanned by a beam of ultraviolet light whereby the stripes are excited to emit light along the path of scan. The emissions of the light in an identifying spectral band are sensed with respect to the position of the light beam on the screen and converted to a train of electrical signals. Then, the average width of the stripes identified by the spectral band is calculated from the distance over which the intensities of the signals are continuously above an assigned value.

REFERENCES:
patent: 4001842 (1977-01-01), Suzuki et al.
patent: 4049451 (1977-09-01), Law
patent: 4110760 (1978-08-01), Van Nets
patent: 4127773 (1978-11-01), West
patent: 4158778 (1979-06-01), Gard et al.
patent: 4161656 (1979-07-01), Marcuse et al.

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