Crt with quadrupolar-focusing color-selection structure

Details Crt with quadrupolar-focusing color-selection structure Crt with quadrupolar-focusing color-selection structure

Category

H - Electricity

Subcategory

01

Subsubcategory

J

CPC

313/35.121, 313/

IPC codes

H01J 29/62 (2006.01) H01J 29/07 (2006.01) H01J 29/81 (2006.01)

Type

Patent

Patent number

CA 1200273

Description

ABSTRACT A CRT employs a quadrupolar-focusing color-selection structure comprising two or more apertured masking plates. Each plate has therein an array of substantially rectangu- lar apertures which are positioned relative to one another to produce electrostatic quadrupolar-focusing lenses when operating voltages are applied thereto. The color-selection structure may, by its geometry, provide at the same time electrostatic dipolar deflecting fields when operating voltages are applied. (Figures 1 and 2)

Application Number

432391

Affiliated with

Also associated with

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