Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1980-10-20
1982-11-09
Segal, Robert
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313406, H01J 2907
Patent
active
043587020
ABSTRACT:
A color selection electrode (7) is suspended in the corners of the upright edge (3) of the display window (2) by means of strip-shaped resilient elements (25) which extend substantially perpendicularly to the electron beams deflected towards the respective corner of the display window. The resilient elements (25), at their ends remote from the color selection electrode (7), comprise a peg (27) the axis of which extends substantially parallel to the direction of the electron beams directed towards the respective corner. In the corner of the upright edge (3) of the display window (2) a supporting element (30) is connected which comprises a portion (32) which is provided with an aperture (33), which portion (32) extends substantially perpendicularly to the axis of the peg (27). The pegs (27) fall partly through the apertures (33). A screening cap for screening the electron beams from the earth's magnetic field in the sleeve is connected to the supporting element (30) thus exerting no pressure on the resilient elements (25).
REFERENCES:
patent: 3548235 (1970-12-01), Driedijk et al.
patent: 4300071 (1981-11-01), Dougherty et al.
Gijrath Johannes H. N.
Van Der Avoort Henricus J. M.
Van Der Geer Josephus J.
Van Liempd Albertus A. M.
Versteegen Hendrik S. A.
Kraus Robert J.
Segal Robert
U.S. Philips Corporation
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