WO2010115183A1 - Appareil souple de désinfection équipé de del à ultraviolet - Google Patents

Appareil souple de désinfection équipé de del à ultraviolet Download PDF

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Publication number
WO2010115183A1
WO2010115183A1 PCT/US2010/029935 US2010029935W WO2010115183A1 WO 2010115183 A1 WO2010115183 A1 WO 2010115183A1 US 2010029935 W US2010029935 W US 2010029935W WO 2010115183 A1 WO2010115183 A1 WO 2010115183A1
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WO
WIPO (PCT)
Prior art keywords
leds
sanitizing apparatus
sanitizing
flexible
power
Prior art date
Application number
PCT/US2010/029935
Other languages
English (en)
Inventor
Jon L. Roberts
Original Assignee
Virwall Systems, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Virwall Systems, Inc. filed Critical Virwall Systems, Inc.
Publication of WO2010115183A1 publication Critical patent/WO2010115183A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultra-violet radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/24—Apparatus using programmed or automatic operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs

Definitions

  • the various embodiments relate generally to the sanitization of various surfaces, and more particularly to methods, materials and apparatus utilizing ultraviolet light to effectively reduce microbe levels.
  • FIG. 1 illustrates a side elevation view of a horizontally disposed sanitizing apparatus with hinged panels according to an embodiment.
  • FIG. 2 illustrates a top plan view of the sanitizing apparatus with hinged panels in FIG. 1.
  • FIG. 3 illustrates a side elevation view of a horizontally disposed sanitizing apparatus with hinged panels according to an alternative embodiment.
  • FIGs. 4A and 4B illustrate cross-sectional views of a panel of a horizontally disposed sanitizing apparatus showing storage and operational configurations according to various embodiments.
  • FIGs. 5A and 5B illustrate detailed side elevation views of an interlock element illustrating the connectivity for operation of a sanitizing apparatus according to various embodiments.
  • FIG. 6 illustrates a schematic detail view of light emitting diodes illustrating emittance of ultraviolet radiation in treating the surface of an object.
  • FIG. 7 illustrates a top plan view of a sanitizing apparatus having a continuous flexible panel according to an embodiment.
  • FIG. 8 illustrates a side elevation view of the sanitizing apparatus of FIG. 7.
  • FIG. 9 illustrates a top plan view of a folding wall support for a continuous flexible panel of a sanitizing apparatus in a folded configuration for storage.
  • FIG. 10 illustrates a parallel projection view of a folding wall support for a continuous flexible panel of a sanitizing apparatus in an unfolded configuration for active use.
  • FIGs. HA and HB illustrate parallel projection views of alternative embodiments of a folding framework support for a continuous flexible panel of a sanitizing apparatus.
  • FIG. 12 illustrates a side elevation view of a continuous flexible panel of a sanitizing apparatus in a rolled storage position.
  • FIG. 13 illustrates a side elevation view of a continuous flexible panel of a sanitizing apparatus on a non-planer object.
  • FIG. 14 illustrates a schematic view of a sanitizing apparatus with DC power supplied to the UV LEDs from a powered port of a computer according to an embodiment.
  • UV radiation is known as a highly effective means of destroying microorganisms.
  • UVC shortwave UV radiation
  • Exposure to UVC damages microbial DNA by triggering adjacent thymine molecules to dimerize, thereby disrupting DNA and RNA replication and ultimately killing the pathogen.
  • UVC radiation to sanitization has been used extensively in medical sterilization of flat surfaces, water treatment and air purification, and in recent years, household surface sanitization applications.
  • Commercially available germicidal UV lamps are hand-held (“wands") and operate using incandescent or fluorescent UVC bulbs.
  • wands germicidal UV lamps
  • Incandescent or fluorescent UVC bulbs there are many limitations to the use of currently available UV light wands.
  • Such devices give non-uniform exposure since the user "waves" the light over the surface. Each user is different and yields a different level of efficacy.
  • UVC exposure to users and bystanders since UVC radiation more damaging to human eyes and more carcinogenic to skin than UVA and UVB radiation.
  • LEDs light emitting diodes
  • incandescent and fluorescent bulbs provide several advantages over incandescent and fluorescent bulbs and provides the ability to create a broad range of sanitizers with flexibility to treat a variety of objects and surfaces. Additionally, LEDs do not have filaments that can burn out thus lasting longer, and the small plastic bulbs of LEDs make them more durable and able to fit more easily into modern electronic circuits.
  • LEDs Another advantage to the use of LEDs is efficiency of power usage, as a conventional incandescent bulb, in warming the filament, generates a good amount of wasted energy in the form of heat.
  • the various embodiment apparatus and methods utilize LEDs to generate UVC in a range of flexble configurations that are easy and safe to use and that surpass the performance of currently available UV-emitting sanitizing devices.
  • Treatment of a surface according to the various embodiments has kill rates of over 99.99% of bacteria and influenza virus, accomplished in under 60 seconds.
  • UVC ultraviolet electromagnetic radiation having a wavelength of 100 nm - 280 nm.
  • FIG. 1 illustrates an embodiment sanitizing apparatus 10 that includes a plurality of panels 14, thus creating a piecewise flexible configuration
  • Each panel 14 contains a two- dimensional array of UV-emitting LEDs 16, and such LEDs that emit disinfecting UVC radiation in the 254 nm and lower wavelength range.
  • the panels 14 may be attached to each other and to electrical control box 12 with hinges 19 such that the apparatus 10 is piecewise flexible at the hinges.
  • Such hingeadly flexible configuration enables the apparatus 30 to fold into a compact storage/transport arrangement and unfold for use.
  • An elongated apparatus 10 as shown in FIG. 1 is suitable for sanitizing elongated areas such as a keyboard surface for a computer, typewriter, ATM, musical instrument, etc.
  • Each panel 14 forms an opaque enclosure with an open side that allows the array of UV LEDs 16 to treat an object.
  • the panels 14 fold in such a manner such that so as to not have the arrays 16 exposed, although this is not a limitation.
  • FIG. 2 illustrates a top view of sanitizing apparatus 10 in an unfolded operational position. After being unfolded, the apparatus 10 may be placed over the item to be sanitized and switch 18 may be activated to operate the UV LEDs 16 and thus sanitize the item.
  • Control box 12 may include an activation switch 18 and a power source 23 that may be any source suitable for electrically powering the plurality of LEDs 16, including, but not limited to, an AC power cord and appropriate transformer, a DC power cord from a "wall wort" transformer or battery pack, a USB or IEEE 1394 receptacle for plugging into a (DC) powered USB or IEEE 1394 device, a battery or set of batteries (e.g., LiPo, alkaline, Ni-Cad, etc.), or a fuel cell (e.g., using methanol, butane or formic acid).
  • a power source 23 may be any source suitable for electrically powering the plurality of LEDs 16, including, but not limited to, an AC power cord and appropriate transformer, a DC power cord from a "wall wort" transformer or battery pack, a USB or IEEE 1394 receptacle for plugging into a (DC) powered USB or IEEE 1394 device, a battery or set of batteries (e.g., LiPo, al
  • Control box 12 may additionally include a timing unit or circuit 25 to control the duration of sanitization, as well as an interlock control circuit 27 to prevent accidental operation of the apparatus 10 and possible exposure to dangerous UVC radiation from the LEDs.
  • Interlock control circuit 27 may coordinate one or more switches that are normally biased in the off position until the apparatus is opened and positioned over an object to be treated. See, e.g., U.S. Patent No. 6,458,331, which is herein incorporated by reference.
  • a horizontally-disposed apparatus for example, as illustrated in FIG. 2, may include a level switch (not shown) in the control box as a safety means to inhibit operation of the apparatus if the panels are not aligned in a level horizontal position.
  • Such level switch may be, but is not limited to, a mercury tilt switch, a roller ball, or a magnetic switch.
  • An interlock switch may be used to turn units on or off, it is preferable to include a separate activation switch 18 for embodiments that are powered by AC, DC, battery or fuel cell.
  • the activation switch 18 may further include a light or other indicator to signal that the UV LEDs are operating, or the control box 12 may further include a timed circuit with different lights or other indicators, each of which may show that the sanitizing apparatus is either ready for operation, currently operating, or that sanitization is complete.
  • the sanitizing time is set so as to deliver the appropriate amount of UV energy needed to deactivate a range of microorganism. Tables of energy for deactivation of a variety of micro-organisms is readily available to those skilled in the art. Noted below are some examples of the amount of UV energy levels at 254 nanometer units wavelength in microwatt- seconds per square centimeter required for 99.9% destruction of various organisms as but some examples, without limitation, or organisms that can be destroyed with various embodiments illustrated herein.
  • Poliomyelitis (polio virus) 21,000
  • Sanitizing apparatus 10 may optionally contain one or more additional two-dimensional arrays of UV-emitting LEDs facing an open side of one or more additional enclosure panels in which the additional arrays are mounted, with an additional hinge rotationally connecting the additional panels to one of the first and the second panel enclosure to allow the additional panel to rotate from a storage position to an operational position.
  • FIG. 3 illustrates an alternative embodiment in which enclosure panels form a piecewise flexible configuration.
  • the apparatus 30 has a control box 32 and an activation switch 38 that are integrated with one of the panels 34.
  • the panels 34 include two-dimensional arrays of UV LEDs 36 and may be attached by hinges 39, enabling the hingeably flexible apparatus 30 to fold into a compact storage/transport arrangement and unfold for use.
  • a center panel may be integrated with the control box 32, as is illustrated, and may be approximately twice the width of the outer panels such that the outer panels can fold inward to protect the center array.
  • FIGs. 4A and 4B illustrate variations of an embodiment in which panels have side- wall fixtures providing increased enclosure height while still allowing compact storage.
  • an apparatus 40 may contain one or more enclosure panels 44 in which a two-dimensional array of UV LEDs 46 is mounted adjacent the opaque face of each the enclosure panel 44.
  • the side- walls of the enclosure panels 44 include extensions 41a, 41b, which may be attached by hinges 49 so as to move between the storage position of extention 41b and the extended position of extention 41a.
  • FIG. 4B illustrates an alternative configuration of extentions 41a, 41b.
  • extensions 41a, 41b may be slidably attached by guides 43 so as to move between the storage position of extension 41b and the operational position of extention 41a.
  • the use of side extensions 41a, 41b may allow the sanitizing apparatus 40 to fold more compactly, the treatment of taller objects, and the use of fewer LEDs or LEDs with narrower projection angles.
  • FIGs. 5 A and 5B illustrate an exemplary embodiment of an interlock mechanism within a piecewise flexible apparatus by which operation of panels 54 may be prevented when the sanitizing apparatus is in a folded position.
  • Figure 5 A illustrates two enclosure panels 54 that are joined by a hinge 59 so as to allow the panels 54 to be folded into a storage position.
  • Interlock elements 55a, 55b may be any suitable means for completion of a circuit capable of energizing the UV LEDs, (for example, mating electrical contacts) and such elements are in a nonoperational position when the panels 54 are folded. However, when panels 54 are rotated about the hinge 59 to a position for active use, as shown in FIG. 5B, the interlocking elements may form an operational position 56 (for example, as a completed electrical contact) thus allowing operation of the panels, assuming other interlock elements are also in proper position.
  • an operational position 56 for example, as a completed electrical contact
  • FIG. 6 illustrates the operation of individual UV LEDs 66 illuminating an object 68 (e.g., a computer keyboard) when treated with UVC radiation 67 according to the various embodiments.
  • UV LEDs 66 may be mounted and positioned within an enclosure panel 64 so as to emit light toward an open side facing an object 68 to be treated.
  • Each LED 66 emits UVC radiation, optimally at a wavelength of approximately 254 nm so as to most effectively neutralize and kill pathogens on the surface of object 68.
  • UVC radiation 67 is emitted by each LED 66 at a projection angle, and each LED 66 may be spaced from adjacent LEDs 66 and the object 68 such that the UVC radiation 67 of each overlaps for full coverage of the surface, including any gaps or crevices, of object 68.
  • the inward- facing surface 65 between LEDs 66 may preferably be formed with a material that is highly reflective of UVC radiation, such as brushed aluminum.
  • An opaque and sturdy material, for example, brushed aluminum may be used to form the entire of the enclosure panel 64 as well as the inward-facing surface 65 although this is not meant as a limitation.
  • the embodiments described above employ rigid panels and connecting means such as hinges and slidable guides to form a piecewise flexible sanitizing apparatus.
  • a panel of UV LEDs that is flexible along its length may be employed to form a continuous flexible sanitizing apparatus.
  • FIG. 7 illustrates an embodiment of a continuous flexible sanitizing apparatus 70 that has a control box 72 and pliable UV LED panel 74 with a two-dimensional array of UV LEDs 76 emitting UVC radiation for treatment of an object.
  • Electrical control box 72 may include a power source 73, which may be any source suitable for electrically powering the plurality of LEDs, including, but not limited to, an AC power cord and appropriate transformer, a battery or set of batteries, or a fuel cell (e.g., using methanol, butane or formic acid).
  • Control box 72 may additionally include an operating switch 78, a timing unit or circuit 75 to control the duration of sanitization, and an interlock control circuit 77 to prevent accidental operation of the apparatus 70. While illustrated as a separate, rigid box, the components of control box 72 may also be mounted or hinged to the flexible panel 74.
  • UV LED panel 74 is made with flexible material(s) that allow the panel 74 to be rolled or folded, and includes appropriate means to allow operation of the array of UV LEDs 76 (for example, ribbon cable wiring or UV reflective mylar).
  • the material(s) from which panel 74 is constructed allows the panel to move and bend around the shapes of objects and surfaces.
  • Panel 74 forms at least a backing portion of an enclosure with an open lower side to allow the array of UV LEDs 76 to emit sanitizing UVC toward an object to be treated.
  • Panel 74 may include sufficiently rigid and dimensioned side- walls (not shown) capable of supporting the UV LED array 76 and panel 74 over an object.
  • panel 74 may be combined with a frame or other structure having side- walls and sufficient rigidity and dimensions to support the array 76 and opaque backing over an object, as discussed below with reference to FIG. 9-1 IB.
  • a continuous flexible sanitizing apparatus may optionally be constructed with an accompanying support structure.
  • Such support structure may be formed as folding walls, or as a folding frame with upper members to support the enclosure panel and leg members to support the upper members.
  • FIG. 9 illustrates a folding wall support structure 90 in a configuration for storage and transport.
  • support structure 90 may have first and second end- walls 94 joined by a pair of side-walls 96 formed of shorter segments in an "accordion" arrangement.
  • the support wall 90 may optionally be attached or integrated with electrical control box 92, with one end- wall 94 optionally being formed from an existing wall of control box 92. If integrated with the control box 92, the support wall 90 may fold flat against the control box 92 for storage and transport.
  • the support structure 90 of FIG. 9 may be pulled out for operational use sanitizing an object.
  • End-walls 94 and side-walls 96 may support a flexible panel 100 operated with control box 92.
  • the support wall may be dimensioned to support the panel 100 in the appropriate position for treating each particular object.
  • means for attaching or securing the panel 100 in position on the support structure may be used as part of an interlock system for safe operation of the sanitizing apparatus so that the panel 100 will not operate when not properly secured to the support (not shown).
  • FIGs. HA and HB illustrate an alternative embodiment support structure for use with a flexible UV LED panel.
  • a flexible UV LED panel (not shown) may be supported upon a folding skeletal frame 110 having upper support members 114 that contact and support the panel and leg members 116 that position the panel in the appropriate position above an object to be treated.
  • the upper support members 114 and leg members 116 are preferably attached in a jointed manner so as to allow the frame 110 to fold for storage and transport.
  • opaque walls 112 of any suitable material may be draped or hung from upper support members 114, stretched between leg members 116, or otherwise secured to the frame 110 to form side-walls for enclosing the UV LEDs and the object to be treated.
  • the side- walls 112 may be formed of rigid or pliable material which, in addition to being opaque to UV radiation, preferably are UV resistant and have an interior surface that is highly reflective of UV radiation.
  • the frame 100 can be made of any appropriately rigid and UV resistant material, including, but not limited to, aluminum or UV resistant plastic. While leg members 114 are shown as straight, table-style legs, they may take other forms, including, but not limited to, the cross-legged form as is used for cots.
  • a sanitizing apparatus 120 having an electrical control box 122 and a flexible UV LED panel 124 may be compactly stored by rolling the panel 124 toward the control box 122 or even around the control box for storage.
  • FIG. 13 illustrates the use of a sanitizing apparatus in treating objects 138 that may not be substantially flat.
  • a pliable enclosure panel 134 (or a plurality of hinged enclosure panels in a piecewise flexible configuration), and, if needed, a flexible support member 135, may substantially conform to the shape of the object to be treated.
  • Control box 132 is preferably attached to the flexible panel 134 in a hinged or similar manner to allow flexible application of the apparatus.
  • FIG. 12 may also have skirts of UV opaque material around the periphery of the flexible UV LED panel so that the skirt can drape down onto a surface to prevent the escape of UV illumination when sanitizing a surface or three dimensional object.
  • FIG. 14 illustrates an embodiment sanitizing apparatus that is particularly suited for treating the input apparatus of a computer, such as a keyboard, mouse, stylus, tablet, trackball or trackpad.
  • power source 143 is a DC input or port for receiving DC power from a powered port of a computer 145, such as the 5 V power of a USB port or the up to 30V (typically 9V/12V/25V) power provided by various IEEE 1394 ports.
  • the control box 142 may then be operated to provide power to the UV LED array 146 inside enclosure 144 to sanitize object or input device 148 with UVC radiation.
  • UV LEDs in the various embodiment apparatus preferably emit UVC radiation, and more preferably emit radiation at a wavelength of approximately 254 nm. It is also well known that ultraviolet radiation below 200 nm can produce small quantities of ozone by breaking up molecules of oxygen gas into free oxygen atoms that combine with nearby diatomic oxygen. Further, it is known that in sufficient concentrations, ozone has significant germicidal and sanitizing effects, for example, by disrupting and lysing cell walls thereby exposing the contents of the cell to oxidation and inactivation. Ozone gas may reach shadowed areas in keyboards, for example, beneath the keys and in any out-of-sight crevices that exist on computer input devices, where projected and reflected ultraviolet radiation may not reach. In an alternative embodiment, UV LEDs may emit a radiation having a wavelength of less than 200 nm, and preferably having a wavelength of 185 nm to accomplish optimum ozone production.
  • UV LEDs in the arrays shown are not meant to be limited by the drawing figures, which are only meant to be representative. Actual numbers and spacing of the UV LEDs depend on numerous factors, including, but not limited to the emission power of the LEDs, the projection angle of the UVC radiation emitted by the LEDs, the desired speed/time-required for the sanitizing, the desired cost constraints, etc.
  • UV LEDs that emit UVC radiation in wavelengths at or below 254 nm are available from various sources, such as UVTOP250 or UVTOP255 TO- 18 FW flat window LEDs available from Sensor Electronic Technology, Inc. of Columbia, South Carolina, or LED MOD Deep UV 22nm/300 ⁇ W UV LEDs from Omicrom Laserage of Rodgau Germany.
  • electrical energy to operate the UV LEDs may be supplied by a power source and an interlock means operates to allow power to the UV LEDs when the panels are in the operational position.
  • a switch means may be used to power the UV LEDs when activated, and the UV LEDs may be adjusted to limit active operation to a predetermined sanitizing period by a timing circuit.
  • UV illumination referred to herein is not limited to constant illumination but could also be pulsed UV illumination as well.
  • the power source may be selected from the group consisting of fuel cells, batteries, AC power, AC power converted to DC power, and DC power, and in preferred embodiments, the power source is DC power provided by a computer port.
  • the present invention may be embodied in other specific forms without departing from the scope of the invention disclosed and that the examples and embodiments described herein are in all respects illustrative and not restrictive. Those skilled in the art ofthe present invention will recognize that other embodiments using the concepts described herein are also possible. Further, any reference to claim elements in the singular, for example, using the articles "a,” “an,” or “the” is not to be construed as limiting the element to the singular.

Abstract

L'invention concerne un appareil de désinfection dans une configuration souple qui fait intervenir un rayonnement ultraviolet (UV) émis par des diodes électroluminescentes (DEL) et qui peut être plié ou roulé en vue d'être stocké et transporté. Un appareil de désinfection souple en plusieurs parties peut être formé à l'aide de panneaux articulés ou sinon joints de manière rotative, et permet de désinfecter plusieurs objets sous des panneaux d'enceinte. Un appareil de désinfection souple continu doté d'un panneau d'enceinte formé d'un matériau souple peut être plié ou roulé, et peut être utilisé avec une structure de support pour traiter des objets plus grands.
PCT/US2010/029935 2009-04-03 2010-04-05 Appareil souple de désinfection équipé de del à ultraviolet WO2010115183A1 (fr)

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US16642909P 2009-04-03 2009-04-03
US61/166,429 2009-04-03

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WO2012040757A1 (fr) * 2010-09-29 2012-04-05 Helioz Research & Development Gmbh Dispositif de désinfection de liquides et/ou d'objets
WO2014078324A1 (fr) * 2012-11-13 2014-05-22 Violet Defense Technology, Inc. Dispositif émettant une lumière ultraviolette
WO2014100493A1 (fr) 2012-12-19 2014-06-26 Helios Innovative Technologies Inc. Unités, systèmes et procédés de stérilisation
US8926119B2 (en) 2011-08-04 2015-01-06 Universal Display Corporation Extendable light source with variable light emitting area
US9698003B2 (en) 2011-06-08 2017-07-04 Xenex Disinfection Services, Llc. Ultraviolet discharge lamp apparatuses with one or more reflectors
KR101767055B1 (ko) * 2016-04-06 2017-08-11 주식회사 세스코 매트리스 측면을 살균하기 위한 가능한 살균기
US9773658B2 (en) 2011-06-08 2017-09-26 Xenex Disinfection Services, Llc. Ultraviolet discharge lamp apparatuses having lamp housings which are transparent to ultraviolet light
KR101801804B1 (ko) * 2016-04-06 2017-11-28 주식회사 세스코 Uv 살균기
CN107496951A (zh) * 2017-08-25 2017-12-22 昆山好创电子科技有限公司 便携式紫外消毒器
US10180248B2 (en) 2015-09-02 2019-01-15 ProPhotonix Limited LED lamp with sensing capabilities
US10245340B2 (en) 2014-09-18 2019-04-02 Xenex Disinfection Services, Llc. Room and area disinfection utilizing pulsed light with modulated power flux and light systems with visible light compensation between pulses
KR20190060450A (ko) * 2017-11-24 2019-06-03 (주)한국전자기술 휴대용 살균장치
WO2021113848A1 (fr) * 2019-12-06 2021-06-10 Purplesun Inc. Proportionnalité d'éclairage distribué au moyen d'un système d'administration multivecteur adaptatif
US11141499B2 (en) 2016-10-19 2021-10-12 Christopher Alexander CORSETTI Sanitization system
GB2601730A (en) * 2020-11-16 2022-06-15 L & Co Trading Ltd Mat and method of sterilising thereof
US11511012B2 (en) 2018-01-16 2022-11-29 Leviant, Inc. Adaptive multivector illumination delivery system

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WO2012040757A1 (fr) * 2010-09-29 2012-04-05 Helioz Research & Development Gmbh Dispositif de désinfection de liquides et/ou d'objets
US11000608B2 (en) 2011-06-08 2021-05-11 Xenex Disinfection Services Inc. Ultraviolet lamp room/area disinfection apparatuses having integrated cooling systems
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