Shadow-mask
noun, Television.
1.
a perforated metal plate situated behind the faceplate of a color television picture tube and having holes aligned to insure that each of three electron beams strikes only its corresponding red, green, or blue phosphor dot.
noun
1.
(television) a perforated metal sheet mounted close to the phosphor-dotted screen in some colour television tubes. The holes are positioned so that each of the three electron beams strikes the correct phosphor dot producing the required colour mixture in the image
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- Shadow price
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- Shadow ram
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- Shadow-roll
noun 1. sheepskin that is placed just below the eyes of a pacing horse in order to prevent it from seeing moving shadows cast by its body.