Exposure device for the manufacture of display screens of color

Details Exposure device for the manufacture of display screens of color Exposure device for the manufacture of display screens of color

1977-03-10

1979-01-02

Wintercorn, Richard A.

Electric lamp and discharge devices

With temperature modifier

For lead-in-seal or stem protection

96 361, 313408, 355 71, G03B 4100

Patent

active

041324706

ABSTRACT:
An exposure device for the manufacture of display screens of color television display tubes is disclosed comprising a filter of non-uniform transmittance which includes a transparent plate provided with a large number of parallel opaque linear regions. The transmission of the filter is varied by varying the width of the linear regions.

REFERENCES:
patent: 3312143 (1967-04-01), Karow et al.
patent: 3797934 (1974-03-01), Miller et al.
patent: 3856525 (1974-12-01), Inoue
patent: 3988777 (1976-10-01), Hosokoshi et al.

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