Abstract: An apparatus and a method, in a handheld portable multi purpose device, for producing multiple and variable wavelength distributions of UV radiation, or visible radiation, comprising a primary UV radiation source, and a system of wavelength transforming (WT) materials that allows selecting at will between UV A, UV B, UV C radiation (individual selections or various combinations,) and visible radiation, whereby the apparatus provides for UV sterilization of food, fluid, air, fluids, and surfaces; while also providing a means to emit visible light. Additionally, an apparatus and method, in a handheld portable multi purpose device, for enabling production and emission of UV radiation selectable between UV A, UV B, UV C radiation (individual selections or various combinations,) and visible radiation in a small form factor device embodied in a handheld portable flashlight, or lamp, type device.

Abstract: An apparatus and a method, in a handheld portable multi purpose device, for producing multiple and variable wavelength distributions of UV radiation, or visible radiation, comprising a primary UV radiation source, and a system of wavelength transforming (WT) materials that allows selecting at will between UV A, UV B, UV C radiation (individual selections or various combinations,) and visible radiation, whereby the apparatus provides for UV sterilization of food, fluid, air, fluids, and surfaces; while also providing a means to emit visible light. Additionally, an apparatus and method, in a handheld portable multi purpose device, for enabling production and emission of UV radiation selectable between UV A, UV B, UV C radiation (individual selections or various combinations,) and visible radiation in a small form factor device embodied in a handheld portable flashlight, or lamp, type device.

Abstract: An apparatus for selectively producing one or more of a plurality of wavelength distributions of radiation. The apparatus comprises a primary UV radiation source and one or more wavelength transforming materials separated from the primary UV radiation source, that in response to irradiation by the primary UV radiation source, produce transformed radiation having a wavelength distribution that is different from the wavelength distribution of the primary UV radiation source. None, one, or more than one of the various WT materials can be selected by the apparatus, to allow the primary UV radiation, any individual transformed radiation, or any combination of the various radiations to be to be emitted from the apparatus.

Abstract: An applicator for eradicating or removing transparent or translucent emphasizing inks, particularly from a paper surface, wherein the emphasizing ink has been used over permanent ink or a printed surface to emphasize such surface or a writing thereon. The applicator comprises a container, a liquid bleaching or oxidizing agent in the container for the emphasizing ink and means on one end of the container, such as a felt tip, roller, pressurized spray nozzle or hand pump, to apply a thin film of the ink removing agent to the emphasizing ink and to effect the eradication or removal thereof without substantially affecting the underlying ink or printed material which has been emphasized. In another embodiment of the invention, a dispenser of a neutralizing agent is also provided to abate the effects of excess bleaching or neutralizing agents on the surface being treated.

Abstract: An applicator for eradicating or removing transparent or translucent emphasizing inks, particularly from a paper surface, wherein the emphasizing ink has been used over permanent ink or a printed surface to emphasize such surface or an area and which applicator comprises a container, a liquid bleaching agent in the container for the emphasizing ink and means on one end of the container, such as a felt tip or roller, to apply a thin film of the liquid bleaching agent to the emphasizing ink and to effect the eradication or removal thereof without substantially affecting the removal or eradication of the underlying ink or printed material which has been emphasized. A method of eradicating transparent ink markings from a surface, such as a paper surface, which method comprises applying a liquid bleaching agent over the ink marked portion of the surface to be eradicated to chemically bleach and eradicate the ink material so marked without substantially affecting any printed ink or print on the underlying surface.