Guided beam flat display device with focusing guide assembly mou

Details Guided beam flat display device with focusing guide assembly mou Guided beam flat display device with focusing guide assembly mou

1977-03-31

1978-07-04

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313432, H01J 2972, H01J 2908, H01J 3100

Patent

active

040990877

ABSTRACT:
An evacuated envelope including a plurality of spaced, parallel support walls extending and substantially perpendicular to flat, substantially parallel front and back walls to provide a plurality of parallel channels extending along the front and back walls. Between each of the support walls and the back wall are a plurality of longitudinally spaced spacer members, each of which has a ledge projecting into an adjacent channel but spaced from the back wall. Within each of the channels is an assembly which includes a pair of spaced, parallel focusing guide grid plates. One of the grid plates has spring tabs at spaced points along its edges which tabs fit under the ledges of the spacer members to hold the assembly in fixed position with respect to the back wall. The other grid plate has spaced location tabs along its edges which engage the spacer members to align the assembly in the channel with respect to the support walls.

REFERENCES:
patent: 4028582 (1977-06-01), Anderson et al.
patent: 4031427 (1977-06-01), Stanley

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