Device for displaying television pictures including a deflection unit therefor

Device for displaying television pictures including a deflection unit therefor

A display tube has an envelope (10) comprising a neck (14). In the neck (14) there is an in-line electron gun (15). A deflection unit which is provided around the envelope (10) comprising a frame deflection coil system (27). The device comprises a neck coil system (50) situated around the neck (14)...

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1. Verfasser: SLUYTERMAN, ALBERTUS AEMILIUS SEYNO
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator SLUYTERMAN, ALBERTUS AEMILIUS SEYNO
description A display tube has an envelope (10) comprising a neck (14). In the neck (14) there is an in-line electron gun (15). A deflection unit which is provided around the envelope (10) comprising a frame deflection coil system (27). The device comprises a neck coil system (50) situated around the neck (14) for generating a magnetic field comprising a dipolar field component for deflection of the electron beams (19, 20, 21) in a (y) direction transverse to the in-line plane, and means for supplying a current (I50) to the neck coil system (50) which is a non-linear function of the frame deflection current (I27) for reducing inner-pincushion raster distortion.
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A deflection unit which is provided around the envelope (10) comprising a frame deflection coil system (27). 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In the neck (14) there is an in-line electron gun (15). A deflection unit which is provided around the envelope (10) comprising a frame deflection coil system (27). 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subjects BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title Device for displaying television pictures including a deflection unit therefor
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