公开(公告)号：PL228055A1

公开(公告)日：1982-02-15

申请号：PL22805580

申请日：1980-11-24

Applicant: RCA CORP

Inventor： CATANESE CARMEN A ,  HOCKINGS ERIC F

IPC: H01J31/20 ,  H01J29/07 ,  H01J29/81 ,  H01J ,  H04N

Abstract: CPT comprises a deflection-and-focus color-selection masking structure, a screen of parallel phosphor stripes, and means for producing three convergent in-line electron beams directed towards the target. When the CPT is operated, pairs of beamlets transmitted through windows in adjacent apertures in the masking structure are deflected towards one another to excite the same phosphor stripe and, also, are focused (compressed) in the narrow width direction of the phosphor stripes and defocused (stretched) in the length direction of the phosphor stripes.

公开(公告)号：PL231717A1

公开(公告)日：1982-01-04

申请号：PL23171781

申请日：1981-06-16

Applicant: RCA CORP

Inventor： CATANESE CARMEN A ,  BLOOM STANLEY

IPC: H01J29/81

Abstract: CRT comprises a color-selection structure for producing a plurality of quadrupolar lenses, each lens defining a window for passing and focusing portions of electron beams to an associated color group of a target. The color-selection structure comprises (i) a metal masking plate having therein an array of substantially rectangular windows, each window having associated therewith (ii) a pair of first conductors insulatingly spaced from one major surface of the plate and located adjacent opposite sides of the aperture and (iii) a pair of second conductors insulatingly spaced from the other major surface of the plate and located adjacent opposte sides of the window. The CRT includes means for applying a voltage to said plate, means for applying a voltage to said pairs of first conductors and means for applying a voltage to said pairs of second conductors.