Abstract: A warning device is disclosed. The warning device includes at least: a board, a locating unit installed on the board and a real-time monitoring unit installed close to the board for users to carry. A number of reflective elements and a number of luminous elements electrically connected to a power module are installed on the board so that warning light beams can be actively sent out. The locating unit can generate a first locating information and the location where the board is can be known by a sent signal. The real-time monitoring unit can work with the signal sent from the locating unit to point out the location where the user is by warning sounds to have effects of warning and monitoring.

Abstract: The present invention provides an electromagnetic wave shielding film having a plurality of holes formed thereon. The shielding film according to the present invention is made of conductive material and utilized as an independent film, a film disposed on a insulation substrate, or a film disposed on or laminated into a printed circuit board or semiconductor integrated circuit for preventing electromagnetic interference.

Abstract: An EM shielding material and an EM shielding contains a material composition comprising at least one EM absorbing element or compound in a discrete particle form and a binding compound to bind the discrete particles in a layer or paste. The discrete particles are made of one or more metals such as Fe, Ni, Cr and Mn or dielectric compounds having magnetic properties. The binding compounds can be selected from silicone, rubber, arcylonitrile butadiene styreneresin (ABS), polycarbonate (PC), epoxy, silica and polyurethane. The associated components can be selected from zinc oxide, magnesium oxide, ethylene thiourea, carbon black, and stearic acid. The material can also be used as the package material for the electronic components in an electronic product.

Abstract: A shielding coating for preventing from outleakage of electromagnetic wave is adapted for shielding electrical products, and electrical parts, traces and connecting lines of the electrical products. The shielding coating comprises an energy transference unit or a shielding unit for cooperating with the energy transference unit. The energy transference unit includes insulated compositions selected from Magnetic Crystal Powder, Rubber/Silicone, Zinc Oxide, Magnesium Oxide, Light Processing Oil, Thylene Thiourea, and Stearic Acid etc, which are mixed by proportional weight for energy transference.

Abstract: A shielding coating for preventing from outleakage of electromagnetic wave is adapted for shielding electrical products, and electrical parts, traces and connecting lines of the electrical products. The shielding coating comprises an energy transference unit or a shielding unit for cooperating with the energy transference unit. The energy transference unit includes insulated compositions selected from Magnetic Crystal Powder, Rubber/Silicone, Zinc Oxide, Magnesium Oxide, Light Processing Oil, Thylene Thiourea, and Stearic Acid etc, which are mixed by proportional weight for energy transference.

Abstract: The present invention provides an electromagnetic wave shielding film having a plurality of holes formed thereon. The shielding film according to the present invention is made of conductive material and utilized as an independent film, a film disposed on a flexible insulation substrate, or a film disposed on or laminated into a printed circuit board or semiconductor integrated circuit for preventing electromagnetic interference.