Radiation Shielding for Mobile Phone Cases

An electromagnetic wave shielding sheet that protects users from electromagnetic radiation and prevents malfunction of other devices. The sheet has a first conductive layer with a fiber web and metal coating, and a second conductive layer with a fiber web. A thin conductive adhesive is between the layers. This shielding structure provides flexibility, adhesion, and vertical/lateral shielding. The sheet can be thin, conformable, and integrated into devices.

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An electromagnetic wave shielding structure and manufacturing method that improves shielding performance, especially for high frequency bands, by using a stack of layers with selective absorption and reflection. The structure has a conductive grid layer to allow specific frequency bands to pass, an absorbing layer below it to absorb those waves, and a reflective layer below that to reflect the absorbed waves back. The layers trap and reflect the targeted frequencies multiple times, improving shielding at those bands.

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Composite materials for shielding electromagnetic radiation that combine high shielding effectiveness over a broad frequency range with light weight, ease of processing, and low cost compared to metal sheaths. The composites contain conductive fillers like carbon black or metal fibers dispersed in a polymer matrix. The filler content can be lower than in metal-only shielding due to the composite's combined absorption and reflection properties. The filler size and distribution affect shielding effectiveness by controlling reflection, absorption, and permeability. The composite structure provides multiple internal reflections and scattering to increase absorption path length. This enables shielding of GHz frequencies where simple metal sheaths have limitations.

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An electromagnetic wave and magnetic field absorbing shielding sheet for electronic devices that minimizes interference and effects on users due to reflections generated during shielding. The sheet has a sheet body with an electromagnetic wave absorbing adhesive member. The absorber is dispersed in a binder matrix. Magnetic layers are stacked between the adhesive members to shield electromagnetic waves and magnetic fields. The adjacent magnetic layers are fixed by the adhesive members. This absorbs transmitted waves through the magnetic layers and reflected waves from them. The adhesive members also attach the sheet to devices. The magnetic layers can be ribbon sheets of soft magnetic alloy. The adhesive member thickness is 3-50 um and magnetic layer thickness is 15-35 um.

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Reducing radiation emission from devices like phones to mitigate potential health risks. The solution involves internal and external shielding components that can be added to device cases. The internal component is an anti-radiation shield inserted into the back cover. It has a custom shape to cover specific device regions that emit radiation. The shield is made of materials like laminated metal foil, metal sheets, anti-radiation fabric, carbon fiber fabric, or metal mesh. The external component is an anti-radiation sheet attached to the front cover and side sections. It's made of anti-radiation materials like fabric or mesh to shield the screen, sides, and back areas. These customized shields can be incorporated into device cases to significantly reduce radiation exposure compared to full metal covers.

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Electronic device case assembly that provides protection against electromagnetic field radiation and microbes. The assembly includes a case configured to receive an electronic device and has a sealed pocket. The case assembly includes an electromagnetic field radiation attenuating layer embedded within the sealed pocket of the case. The attenuating layer is made of material selected from the group consisting of aluminum, silver, copper, and zinc.

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A protective cell phone case is designed to redirect radiation away from the user while amplifying sound and shielding radio signals for privacy. The case has a hinged front plate with slots and a lip to fit over the phone, a copper shield with sound openings, and a back plate with a camera slot. The copper shield is concave to redirect radiation away from the user. The case also has octagonal notches and dense wood material for enhanced sound amplification.

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Thin, flexible case for portable electronic devices like smartphones and tablets that shields the user from harmful electromagnetic radiation emitted by the device. The case has a layer of specialized material sandwiched between the device and outer cover. This shielding layer reduces the radiation directed at the user when holding the device. The shielding layer is made of materials like expanded monel mesh or fine wire mesh. These materials provide significant reduction in emitted signal strength while allowing normal device function. The case also has cutouts around non-cellular signals like WiFi and GPS to maintain normal device connectivity.

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A cell phone case design that redirects radiation away from the user while amplifying audio to reduce radiation exposure and improve sound quality. The case has a hinged front plate with slots for the camera and buttons and a back plate with a lip to hold the phone. A concave copper shield between the plates redirects radiation away from the body. The front plate has audio amplification slots matching copper shield openings.

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Mobile device case with improved electromagnetic shielding and manufacturing efficiency. The case has a frame made of a high molecular material like PEEK that is coated with a thin layer of metal to shield electromagnetic radiation. The metal coating is formed by electroless plating on the case surface. The coating process involves cleaning the case, introducing polar functional groups via cold plasma treatment, and plating with metal ions using a reducing agent. This allows shielding without requiring vacuum deposition or spray-on paints. The metal coating improves shielding, while the high molecular material provides strength and low weight. Unlike metal frames, the case frame is injection molded, enabling complex shapes and better shielding coverage.

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Removable cell phone case that protects the device from physical damage and also provides electromagnetic radiation (EMR) shielding near the antennas. The case has conductive materials in selected areas near the antennas to attenuate EMR. This reduces the amount of radiation absorbed by the user's body when holding the phone close to the antennas. The conductive materials are impregnated into certain regions of the case to provide targeted shielding. The case also has magnetic surfaces to attach to metal surfaces for convenient mounting.

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Radiation-proof anti-vibration mobile phone motherboard to mitigate radiation exposure and protect the motherboard from drops. The motherboard has a modular design with removable components. It has a metal mesh braided shield at one end to block radiation. The mesh has clamping blocks and adjusting bolts for fixing. At the other end, anti-vibration structures prevent damage from drops. This allows replacing damaged components instead of the whole motherboard.

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Structure to reduce radiation emission from devices like smartphones by incorporating internal shielding and external covers made of materials like laminated metal foil, anti-radiation fabric, carbon fiber fabric, and metal mesh. The shielding goes inside the device cover to reduce radiation from screens, sides, and back areas. The covers can be customized with shapes to fit specific device models and provide complete radiation protection. The shielding materials absorb, deflect, prevent, or reduce the harmful radiations emitted by the device.

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Electromagnetic shielding device to protect users from radiation emitted by electronic devices. The device has a body with a layer containing an electromagnetic shielding material sandwiched between two other layers. When attached to an electronic device, the shielding layer deflects radiation away from the user instead of absorbing it. This allows users to safely interact with devices without exposure to potentially harmful radiation. The shielding layer can be integrated into device covers, wrapped around devices, or adhered to them. It contains embedded metal particles or laminates to deflect radiation.

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This cellphone case redirects radiation away from the user, amplifies speaker audio, and shields radio signals. The case has a hinged front and back plate made of dense wood that insulates heat. The front plate has a slotted design to redirect radiation away from the body while matching audio openings to amplify sound. The back plate has a lip to hold the phone, allowing access to buttons and ports. A concave copper shield inside redirects signals away from the body.

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An anti-radiation mobile phone case that reduces radiation exposure without affecting signal strength. The case has an inner absorber attached to the flange around the phone compartment. This absorber covers the inner side wall and prevents radiation from leaking into the compartment. It also has an extending portion near the screen that contacts it to awaken it. This isolates the screen from radiation. The case can have an outer absorber on the cover facing the screen to reduce radiation further.

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A radiation blocking device for mobile phones to mitigate health risks associated with mobile phone radiation. The device is a box that encloses the phone. Inside the box, layers of anti-radiation materials are sequentially compounded and connected. These layers include metal fiber, silver fiber, and flannel. The phone is placed in the flannel-lined cavity inside the box. The layers of anti-radiation materials block and absorb mobile phone radiation to reduce exposure when the phone is enclosed in the box.

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An electromagnetic wave shielding device to improve shielding performance of an enclosed electronic device while reducing secondary radiation. The device has a conductive layer shielding the device from external electromagnetic waves. It also has one or more current feedback bands with conductive paths around the device. The conductive layer ends are connected via the opposite device side to form an annular circuit. This reduces stray currents and secondary radiation from the feedback bands. Multiple feedback bands disperse the feedback currents. A tubular conductive layer encloses the device. A booster amplifies the shielding layer current.

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Mobile phone radiation protection device using silver fiber material to shield electromagnetic radiation without affecting signal strength. The device has a rectangular body with an outer layer, inner layer, and silver fiber interlayer. The top and bottom of the body have antenna slots. The outer layer is flannel for moisture absorption, the inner layer is soft rayon, and the interlayer is silver fiber. This shielding design covers most phone models and leaves space at the antenna areas for signal reception.

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A device to block mobile phone radiation exposure by enclosing the phone in a box with layers of radiation shielding materials. The box has an openable cover and bottom to easily place and remove the phone. The shielding layers inside the box include metal fiber, silver fiber, and flannel. The metal and silver fibers provide high radiation blocking while the flannel allows airflow. The layers are sequentially connected inside the box cavity to shield the enclosed phone from emitted radiation.

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