Electron bun optical adjustment apparatus and method

Details Electron bun optical adjustment apparatus and method Electron bun optical adjustment apparatus and method

1977-02-04

1979-04-10

Lazarus, Richard B.

Metal working

Barrier layer or semiconductor device making

Barrier layer device making

316 1, 316 23, 316 29, H01J 918, H01J 942

Patent

active

041481178

ABSTRACT:
An optical adjusting method and apparatus for aligning the electron gun system in color television picture tubes during the sealing process. The electron gun system and the picture tube prior to assembly are separated from each other with the electron gun system being supported for rotation about its longitudinal axis and having optically effective position marks which may comprise slots or columns thereon for aligning the electron gun system in a predetermined alignment. A light beam traverses the position marks which, in the electron gun system, when properly rotated, coincides with the axis between a light source and a light intensity measuring means such that the electron gun system is aligned in its predetermined alignment when a maximum light intensity with respect to a predetermined threshold is detected.

REFERENCES:
patent: 3194626 (1965-07-01), Hoffmann
patent: 3816891 (1974-06-01), Fassett
patent: 3962764 (1976-06-01), Stewart et al.
patent: 3962765 (1976-06-01), Stachel et al.

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