Title: Picture tube
Application Number: 85101063 Application Date: 1985.04.01
Publication Number: 1007724 Publication Date: 1987.01.24
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01J29/50,H01J29/56,H01J31/26
Applicant(s) Name: N.V Philips Gloeilampenfabrieken Address:
Inventor(s) Name:
Attorney & Agent: HE GUANYUAN
Abstract:
     The present invention relates to an electron gun system of picture tube in which a focus lens is able to focus at least two electron beams at the screen and an image will be displayed on the screen after the deflection of the electron beam happens by means of the deflection unit. The electron gun system is composed at least of two electron sources in which the electrons of each electron beam is accelerated by an electric field with intensity 600 V/mm and more after leaving the electron source. The center path of the electron beam stretches nearly parallelly. All electron beams are nearly at the focal point through the focus lens, and then each saturated electron beam is focused at the screen to form a point by means of the action of the deflection tool to the ocular focus lens.
Time: 8
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