A tangible device such as a credit card shaped device that includes at least one waffler carved therein. A bottom stabilizing material in the shape of a film or sheet is placed within the waffler. A nano-scaled metal in powdered form that is ferromagnetic in nanoscale, such as gold, is then added above the bottom stabilizing film. A ferromagnetic powder in nanoscale is added to the nano-scaled metal and a top stabilizing film is placed thereon. Ceramic powder is then used to further stabilize the composition and finally all the components are sealed within the waffler. The nano-scaled metals can be affixed to the stabilizing films using atomic layer deposition. The present invention is used to neutralize the electromagnetic contamination emitted from a plurality of electronic devices by organizing the polarity of the spin of the element particles within their radiation.

An external electromagnetic shielding device is provided. The external electromagnetic shielding device includes a bottom shield, a conductive cover being in a grid-like shape and arranged above the bottom shield, and a rolling module. The conductive cover includes a top shield spaced apart from the bottom shield, a lateral shield connected to the top shield, and a plurality of supports that are fixed to the lateral shield. The supports include a bottom support in an annular arrangement, and any two of the supports are spaced apart from each other. The rolling module includes a rolling unit and a linkage unit that is connected to the rolling unit and the bottom support. When the linkage unit is coiled on or released from the rolling unit, the bottom support can be moved to allow the lateral shield to fold or unfold between the bottom shield and the top shield.

The present application provides an insulating composite plate comprising: an upper plate layer, a lower plate layer, and a middle plate layer, wherein the upper plate layer and the lower plate layer are made of a thermoplastic material; the middle plate layer is located between the upper plate layer and the lower plate layer, the middle plate layer being a metal mesh; the upper surface of the middle plate layer and the lower surface of the upper plate layer are bonded together, and the lower surface of the middle plate layer and the upper surface of the lower plate layer are bonded together. An insulating composite plate provided by this application has good insulation properties and can shield electromagnetic interference.

A shielding film and a circuit board are provided. The shielding film includes a first film layer (11), a contrast structural layer (12) and an electromagnetic shielding layer (13). The first film layer (11) is disposed on a first side of the electromagnetic shielding layer (13). The contrast structural layer (12) is disposed on the first side of the electromagnetic shielding layer (13). The grayscale value of the color of the contrast structural layer (12) is greater than the grayscale value of the color of the first film layer (11). In the contrast structural layer (12) and the first film layer (11), a hollowed-out pattern of an identification code is formed on a layer away from the electromagnetic shielding layer (13).

An electromagnetic wave suppression sheet includes an electromagnetic wave transmitting layer having conductivity and transparency; a suppression layer having transparency; a conductive mesh having openings formed by woven lines; and an adhesive layer having transparency in this order from an outer side toward an inner side. The openings of the conductive mesh have a region in which the suppression layer and the adhesive layer are in contact with each other. A method of manufacturing an electromagnetic wave suppression sheet includes steps of preparing a laminate including the suppression layer, and the conductive mesh disposed to be in contact with the suppression layer; and applying a pressure to the conductive mesh in a direction of the suppression layer.

This disclosure describes systems and methods for metal foam cooling of vehicle electronic. An example apparatus may include an electronic control unit (ECU) comprising an electronic component included within a housing. The example apparatus may also include a metal foam configured to dissipate heat produced by the electronic component and also configured to facilitate electromagnetic interference (EMI) shielding for the electronic component. The example apparatus may also include an interface between the ECU and the metal foam, wherein the interface provides a connection between the ECU and metal foam to facilitate heat dissipation from the electronic component to a location outside of the housing.

A display system suitable for use inside an MRI system bore to display images to a patient undergoing an MRI procedure. The display system includes a curved display structure fitted inside the MRI bore, and having a width and length sufficient to present images to the patient inside the tunnel. First and second EMI shielding layers sandwich the curved display structure. A display electronics module is electrically connected to the curved display structure to provide video drive signals to the curved display structure. A housing for the display electronics module is configured to provide shielding to prevent EM signals from within the housing to affect MRI image processing.

A bus bar assembly is provided that includes an electrical conductor with a rectangular cross-section. A first insulation layer surrounds the electrical conductor. A shielding layer surrounds the first insulation layer. The shielding layer is formed from an embossed conductive foil wrapped around the first insulation layer with overlapping sections. A method of making the bus bar assembly is provided that includes an electrical conductor being surrounded with a first insulating layer. The first insulating layer is then wrapped with a shielding layer formed from a conductive foil wrapped around the first insulation layer.

An apparatus includes a ear piece case housing, a receptacle within the ear piece case housing and configured to hold an earpiece, an earpiece connector at the receptacle and configured to electrically connect with the earpiece, and electromagnetic shielding materials integrated into the ear piece case housing to electromagnetically isolate the earpiece while the earpiece is contained within the case housing. The ear piece case housing may include a charger and a removable slide cover adapted for sliding over the charger.

The present disclosure discloses a conductive film, comprising a transparent supporting layer and a conductive grid. The transparent supporting layer comprises a first side face and a second side face arranged opposite to each other, and the first side face is provided with grooves. A conductive material is filled in the grooves to form the conductive grid interconnected, and the conductive grid comprises a plurality of circle lattices. Since the conductive material is filled in the grooves to form the conductive grid and the conductive grid comprises a plurality of circle lattices, the dot pattern presented is relatively soft, and the impact on vision caused by interference is reduced.