Beam-indexing color image-presentation cathode ray tube

Details Beam-indexing color image-presentation cathode ray tube Beam-indexing color image-presentation cathode ray tube

1978-03-23

1980-03-18

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Screen

358 69, H01J 2932, H01J 3120

Patent

active

041941403

ABSTRACT:
A beam-indexing color image-presentation cathode ray tube comprises color-phosphor stripes arranged in a regular order and differently responsive to impingement by electron beams to produce light of different colors and index-phosphor stripes arranged to have a predetermined geometric relation to the color-phosphor stripes and responsive to impingement by the electron beams to produce index signals, in which the index-phosphor stripes comprises a first index-phosphor stripe, a second index-phosphor stripe and a third index-phosphor stripe, the pitch of the second index-phosphor stripe is three times as large as the pitch of the third index-phosphor stripe, and the first index-phosphor stripe is wider in its width than the second index-phosphor stripe.

REFERENCES:
patent: 3721854 (1973-03-01), Sunstein
patent: 3767954 (1973-10-01), Avoort
patent: 4003082 (1977-01-01), Fumoto

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