摘要:
An EMI/RFI shielded substrate, preferably a window or CRT screen is disclosed. The conductive pattern is formed of a series of randomly distributed vertices interconnected with linear and/or curvilinear elements. The pattern is formed by moving the vertices of a normal rectangular grid from their established x,y coordinates to new x′,y′ coordinates which are a small distance from the x,y coordinates at an angle, α , which is from 0° to 360°. Preferably, the vertices are displaced by an increment that is 50% or less of the distance between the vertices of the x,y coordinate pattern.
摘要:
Efficient electromagnetic shielding envelopes made of wound metallic glass filaments are disclosed. They are made by winding the filaments around a suitably shaped mandrel and embedding the filaments in a matrix. These shielding envelopes have high shielding ratios at low magnetic fields and are easily manufactured.
摘要:
The present invention provides a steel sheet for a heat shrink band, containing, by mass%, 0.005% or less of C, 0.5 to 4% of Si, 2% or less of Mn, 0.2% or less of P, 0.04% or less of S, 0.2% or less of sol.Al, 0.01% or less of N, 0.0003 to 0.004% of B, 0.005% or less of O, and 0.002 to 0.1% of Sb, the balance being substantially formed of Fe, or a steel sheet for a heat shrink band further having a ratio of content of B to content of N (B/N) in the range from 0.2 to 1. This steel sheet realizes a heat shrink band having high strength and sufficient magnetic shielding properties.
摘要:
A cathode ray tube (1) comprises an electrically conductive layer (10) shielding against alternating electric fields produced by the deflection unit (5). The electrically conductive layer (10), including an electrically conductive polymer, is provided on at least a part of the funnel portion (6) of the tube (1). The electrically conductive polymer is preferably chosen from the group of polythiophenes. Good results were obtained with a layer comprising poly-3,4-ethylene dioxythiophene. Application of this compound prevents the occurrence of damage to the tube by arcing phenomena and thus reduces the necessity of an insulating film between the tube (1) and the deflection unit (5).
摘要:
A shielded CRT (18) display includes a secondary shielding enclosure (14) for enclosing the CRT (18) and for inhibiting electromagnetic emissions therefrom. A primary shielded enclosure (12) internal to the secondary shielding ennlosure (14) has a portion coaxial (16) with the neck portion (22) of the CRT (18) for also inhibiting electromagnetic emissions from the CRT (18). The CRT (18) includes an internal conductive layer comprised of an internal aquadag, wire mask, and phosphor coating. This internal conductive layer is grounded via a reactive path to ground to suppress electromagnetic emissions. This double shielding suppression technique eliminates the need for external shielding of the face portion of the CRT (18).
摘要:
An EMI/RFI shielded substrate, preferably a window or CRT screen is disclosed. The conductive pattern is formed of a series of randomly distributed vertices interconnected with linear and/or curvilinear elements. The pattern is formed by moving the vertices of a normal rectangular grid from their established x,y coordinates to new x′,y′ coordinates which are a small distance from the x,y coordinates at an angle, α , which is from 0° to 360°. Preferably, the vertices are displaced by an increment that is 50% or less of the distance between the vertices of the x,y coordinate pattern.
摘要:
Un affichage vidéo (10) comporte un panneau plat (12), et afin de diminuer le rayonnement du champ électrique, comprend un écran conducteur (19) ayant une surface conductrice transparente recouvrant l'affichage (12). Le terminal (10) est également protégé par un écran et câblé pour réduire le rayonnement du champ magnétique.
摘要:
L'invention a principalement pour objet une bobine, un procédé de réalisation de ladite bobine et un dispositif d'imagerie comportant une telle bobine. L'invention concerne une bobine (2) comportant une plaque support (3) d'épaisseur sensiblement constante et des motifs (12,13) déposés sur ce support. Les motifs (12,13) sont déposés de telle manière que l'absorption, dans une bande passante désirée de l'énergie électromagnétique soit constante sur toute la surface de la bobine. Dans un premier exemple de réalisation, les motifs sont transparents à l'énergie électromagnétique d'une bande de fréquence désirée. Dans un second exemple de réalisation, on utilise des motifs complémentaires de façon à obtenir une absorption constante sur toute la surface de la bobine (2). La présente invention s'applique à la fabrication des bobines électriques bidimensionnelles, comme par exemple les bobines planes ou les bobines en forme de calotte sphérique. De telles bobines trouvent leurs applications en compensation de l'influence des champs magnétiques sur des faisceaux de particules chargées. Elles trouvent notamment leur application dans les dispositifs d'imagerie utilisant des faisceaux d'électrons.
摘要:
An image display apparatus comprises: a display unit 1000 including a substrate 1003 having an outer surface provided with an image display area 1001; a conductive layer 1022 that is disposed on the substrate 1003 via an adhesive layer 1021; and an electrode 1002 that is disposed on at least a part of the area except for the image display area 1001 on the outer surface of the substrate 1003. The electrode 1002 and at least a part of the conductive layer 1022 are layered via a part of the adhesive layer 1021, and the electrode 1002 and the conductive layer 1022 are electrically connected.
摘要:
An image display apparatus comprises: a display unit 1000 including a substrate 1003 having an outer surface provided with an image display area 1001; a conductive layer 1022 that is disposed on the substrate 1003 via an adhesive layer 1021; and an electrode 1002 that is disposed on at least a part of the area except for the image display area 1001 on the outer surface of the substrate 1003. The electrode 1002 and at least a part of the conductive layer 1022 are layered via a part of the adhesive layer 1021, and the electrode 1002 and the conductive layer 1022 are electrically connected.