Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask
Patent
1980-11-17
1981-10-20
Kimlin, Edward C.
Radiation imagery chemistry: process, composition, or product th
Radiation modifying product or process of making
Radiation mask
29 2517, 313403, 313408, 354 1, 355132, 355133, 430 23, 430321, 430323, 430396, G03C 500
Patent
active
042961890
ABSTRACT:
A color picture tube having a slit type apertured mask, wherein the slit apertures are arranged in columns and the apertures in each column are separated by webs is improved by increasing the radius of curvature of the ends of the apertures at the webs to substantially greater than half the width of the central portions of the respective apertures. Such aperture shape may be achieved by a method wherein the aperture images of a photomaster used in fabricating the mask have greater width at the ends thereof than at the centers of the aperture images.
REFERENCES:
patent: 3652895 (1972-03-01), Tsunetta et al.
patent: 3731129 (1973-05-01), Tsunetta et al.
patent: 3766419 (1973-10-01), Barbin
patent: 3834905 (1974-09-01), Dodd et al.
patent: 3882347 (1975-05-01), Suzuki et al.
patent: 3883770 (1975-05-01), Yamada et al.
patent: 3973965 (1976-08-01), Suzuki et al.
patent: 4077717 (1978-03-01), Lange
patent: 4159177 (1979-06-01), Elshof et al.
patent: 4168450 (1979-09-01), Yamauchi et al.
Bruestle Glenn H.
Irlbeck Dennis H.
Kimlin Edward C.
RCA Corporation
Whitacre Eugene M.
LandOfFree
Color picture tube having improved slit type shadow mask and met does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Color picture tube having improved slit type shadow mask and met, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color picture tube having improved slit type shadow mask and met will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1491905