Shadow mask with recessed regions extending across mask in...

Details Shadow mask with recessed regions extending across mask in... Shadow mask with recessed regions extending across mask in...

H - Electricity

01

J

313/35.16

H01J 29/07 (2006.01)

Patent

CA 1069574

Abstract of the Disclosure A shadow mask for a colored TV picture tube contains the conventional foraminous or translucent area formed by multiple vertical rows of miniature apertures or slits with the improvement being a pattern set of recesses which are located between the rows of slits and which extend into the margin of the mask. Because of the patterned set of recesses, doming the mask can be accurately and smoothly accomplished for insertion into the envelope of a colored television picture tube.

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