Method for inspecting cathode-ray-tube window for...

Details Method for inspecting cathode-ray-tube window for... Method for inspecting cathode-ray-tube window for...

G - Physics

01

N

316/3, 33/51, 35

G01N 21/01 (2006.01) G01N 21/88 (2006.01) H01J 9/42 (2006.01) H01J 29/24 (2006.01)

Patent

CA 1077258

ABSTRACT OF THE DISCLOSURE In inspecting a cathode-ray tube window having a light-scattering inner surface, a pattern, which approximates the structure of the video images to be viewed through the window is placed close to or against the inner surface. The pattern is observed through the window, and those local regions where the pattern appears to be distorted are identified.

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