Television picture tubes

Details Television picture tubes Television picture tubes

1985-02-04

1986-06-24

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156654, 1566611, 430 23, C23F 102, B44C 122, C03C 1500, C03C 2506

Patent

active

045966290

ABSTRACT:
A television tube having an electron gun and an aperture mask with a plurality of line of sight openings in the aperture mask wherein the line of sight openings in the aperture mask are partially defined by material on the cone side surface of the aperture mask and partially defined by material on the grade side surface of the aperture mask with the aperture opening size and shape varying in accordance with the position of the opening in the aperture mask. Two techniques known as the capital I and capital H resist layout techniques are taught to illustrate the formation of the aperture mask.

REFERENCES:
patent: 3036962 (1962-05-01), McNutt
patent: 3139392 (1964-06-01), Mears
patent: 3973965 (1976-08-01), Suzuki et al.
patent: 4303466 (1981-12-01), Thoms

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