An optical disc unit for an ultraviolet sterilizer, which is applied to the ultraviolet sterilizer, includes an ultraviolet light emitting diode (LED) to reflect light irradiated from the ultraviolet LED, including a body portion including a hollow and a primary optical unit fixedly coupled to an internal diameter surface in the hollow of the body portion and disposed in a direction perpendicular to an emission surface of the ultraviolet LED to reflect light irradiated from the ultraviolet LED, and according to an exemplary embodiment of the present disclosure, it is possible to enhance a sterilization ability by increasing a beam angle of light irradiated from the ultraviolet LED and uniformly irradiating the light and also reduce a risk of light leakage to the outside in a space to which the ultraviolet LED is applied.

Three systems for the destruction of the data storage portion of electronic media storage devices such as hard disk drives, solid state drives and hybrid hard drives. One system utilizes a mill cutter with which the hard drive has relative motion in the direction of the axis of the mill cutter to destroy the data storage portion. A second system utilizes a laser to physically destroy the data storage portion. The third system utilizes a chemical solvent to chemically destroy the data storage portion.

A cleaning device includes a support member supporting a suspension as a work, first piezoelectric elements arranged on the suspension, second piezoelectric elements arranged on the suspension, an oscillation signal generator and a blowing suction unit. The oscillation signal generator applies an oscillation signal to at least one of the piezoelectric elements and the second piezoelectric elements. A gas such as air is blown onto the suspension and a gas around the suspension is sucked by the blowing suction unit in a state where at least one of the piezoelectric elements is oscillated by the oscillation signal.

Three systems for the destruction of the data storage portion of electronic media storage devices such as hard disk drives, solid state drives and hybrid hard drives. One system utilizes a mill cutter with which the hard drive has relative motion in the direction of the axis of the mill cutter to destroy the data storage portion. A second system utilizes a laser to physically destroy the data storage portion. The third system utilizes a chemical solvent to chemically destroy the data storage portion.

The invention relates to a destruction system for destroying a functional layer, which may receive data or perform other functions, such as optical functions, for example, and a related method. The reactants may be interspersed within the functional layer or may be provided in a separate layer adjacent to the functional layer. The reactants are structured to be ignited to destroy the functionality of the functional layer and the data. Ignition may be obtained through a flame or by suitable electrical current in certain embodiments of the invention.

A media scrubbing system includes a pair of rotating brushes arranged to rotate in opposed directions and receive media between the rotating brushes so as to scrub downwards on opposed surfaces of the media. The system includes oscillating rollers for supporting the media between the brushes. The oscillating rollers are arranged to reciprocally move vertically so as to oscillate the media as the brushes are rotating.

The invention pertains in general to a latching mechanism for maintaining desired friction levels on an optical disc in an optical disc restoration device. In particular the invention pertains to devices, systems and methods for easily maintaining friction levels between pads and an optical disc in an optical disc restoration device for ease of adjusting friction settings during quality control, repair operation or when optimization settings are being set in an optical disc restoration device by a user.

The invention pertains in general to a latching mechanism for maintaining desired friction levels on an optical disc in an optical disc restoration device. In particular the invention pertains to devices, systems and methods for easily maintaining friction levels between pads and an optical disc in an optical disc restoration device for ease of adjusting friction settings during quality control, repair operation or when optimization settings are being set in an optical disc restoration device by a user.

A method for chemically destroying magnetic data carriers. Recorded data are irretrievably eliminated and cannot be re-read. The carriers include aluminium or its alloys and ferromagnetic materials. They undergo a digestion reaction with an aqueous solution of a digesting mixture including: a) hydrochloric acid and (V)nitrate of one or more alkali metals, alkaline earth metals, rare earth metals and ammonium; or b) nitric(V) acid and chloride of one or more alkali metals, alkaline earth metals, rare earth metals and ammonium. The product of the reaction is an aqueous solution having aluminium hydroxide and chlorides and (V)nitrates of metals contained in the ferromagnetic metals and gaseous products of the reaction. Acidic salt solutions are utilized in a sewage treatment plant. Gaseous products including hydrogen and nitrogen oxides, after diluting with nitrogen, are directed to the atmosphere through an absorption system.

The invention relates to devices, systems and methods for restoring optical discs, including CD's, DVD's and Blu-ray discs. The invention provides an easy to use device for user's to repair optical discs without having to clean or remove rotating pads in the device between uses for the life of the pads of about 84 cycles.