HANDHELD ULTRAVIOLET IRRADIATION DEVICE HAVING DISTANCE MEASUREMENT SYSTEM

A handheld light assembly for eradicating pathogens includes a housing. A processor and a lamp are disposed inside the housing. The lamp irradiates surfaces with disinfecting ultraviolet light having a peak wavelength of 222nm filtered to restrict illumination to between 200nm and 230nm within an ir...

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Bibliographische Detailangaben
Hauptverfasser:	LACOLLA, Josiah, MARTIN, Kevin, FEENEY, Benjamin X, DEGRAZIA, Gregory D, SCHMONDIUK, Joseph M. III, THIMM, David, ROSEN, Jennifer K, NATARAJAN, Prasanna
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL
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Beschreibung
Zusammenfassung:	A handheld light assembly for eradicating pathogens includes a housing. A processor and a lamp are disposed inside the housing. The lamp irradiates surfaces with disinfecting ultraviolet light having a peak wavelength of 222nm filtered to restrict illumination to between 200nm and 230nm within an irradiation zone. A distance measuring system includes a secondary light source generating secondary light and a photodetector for measuring distance of the secondary light to a surface being irradiated by the lamp light being reflected from the surface to the photodetector. The secondary light source is offset at an angle from the lamp thereby projecting the light beam to a central area of the irradiation zone generated by the lamp. The photodetector signals the processor to calculate a vertical distance between the lamp and the central area of the irradiation zone on the surface being irradiated from an angular projection of the secondary light.