Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1986-10-28
1988-11-08
Boudreau, Leo H.
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313402, 313407, 313408, H01J 2907
Patent
active
047836148
ABSTRACT:
An improved front assembly for a color cathode ray tube having a tension foil shadow mask is disclosed. The faceplate of the tube has on its inner surface a centrally disposed phosphor screen surrounded by a peripheral sealing area adapted to mate with a funnel. A shadow mask support structure secures a shadow mask in tension on the structure and spaces the shadow mask from the screen. The support structure is a generally L-shaped support member having one leg projecting from the faceplate and defining a ridge for securing the shadow mask to the support member. The other leg of the L-shaped support member projects along the screen for securing the support structure to the faceplate. Stiffening ribs span the legs of the support member.
REFERENCES:
patent: 2625734 (1953-01-01), Law
patent: 2733366 (1956-01-01), Grimm et al.
patent: 2761990 (1956-09-01), Amdursky et al.
patent: 2813213 (1957-11-01), Cramer et al.
patent: 2842696 (1958-07-01), Fischer-Colbrie
patent: 2905845 (1959-09-01), Vincent
patent: 3030536 (1962-04-01), Hackett et al.
patent: 3284655 (1963-06-01), Oess
patent: 3638063 (1972-01-01), Tachikawa et al.
patent: 3639799 (1972-02-01), Kirchner
patent: 3727087 (1973-04-01), Steinberg
patent: 3894321 (1975-07-01), Moore
patent: 4045701 (1977-08-01), Dougherty
patent: 4069567 (1978-01-01), Schwartz
patent: 4087717 (1978-05-01), Lerner
patent: 4100451 (1978-07-01), Palac
patent: 4547695 (1985-10-01), Rath
patent: 4547696 (1985-10-01), Strauss
patent: 4605879 (1986-08-01), Rath
"The CBS-Colortron: A Color Picture Tube of Advanced Design", N. F. Fyler, W. E. Rowe, C. W. Cain.
"A High-Brightness Shadow Mask Color CRT for Cockpit Displays", Robinder, Bates, Green, Lewen and Rath, Tektronix, Inc. Beaverton, OR.
Boudreau Leo H.
Powell Mark R.
Zenith Electronics Corporation
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