Patent ID: 6194822
Filing Date: 2001-02-27
Classification: H01J

Abstract:
An alignment jig for aligning and preventing rotation of a grid during assembly of an electron gun for use in a color cathode ray tube (CRT), wherein said grid includes three inline electron beam passing apertures including a center circular aperture and two outer asymmetric apertures, said alignment jig comprising:a first support member;three generally cylindrical mandrels attached to and arranged in a spaced, parallel, inline array on said support member, wherein each of said mandrels is adapted for insertion in a respective aperture of the grid for supporting the grid during electron gun assembly;a first keying member disposed on the grid; anda second support member adapted to receive the grid, said second support member comprising a generally flat plate and including a second keying member adapted for complementary engagement with said first keying member for maintaining the three apertures of the grid in precise alignment with said three mandrels.