WO2022123175A1

WO2022123175A1 - Lamp able to emit different wavelengths, fixture and vehicle using such a lamp and method of use

Info

Publication number: WO2022123175A1
Application number: PCT/FR2021/052240
Authority: WO
Inventors: Morou Boukari
Original assignee: Prodose
Priority date: 2020-12-09
Filing date: 2021-12-08
Publication date: 2022-06-16

Abstract

The invention relates to a lamp (100), noteworthy in that it incorporates: - a means for emitting radiation in the visible spectrum (300), - a means for emitting radiation in the spectrum of blue light (400), - a means for emitting ultraviolet, i.e. UV, radiation (200), each means being associated with one switch (210, 310, 410) that may be remotely controllable and one power regulator (220, 320, 420), these being integrated into the lamp (100), and controlling and regulating, depending on the emitting means, the same electrical power source. The invention also relates to a fixture and vehicle using such a lamp and to the method for using such a lamp.

Description

Title of the invention: LAMP WITH DIFFERENTIATED WAVELENGTHS, FURNITURE AND VEHICLE USING SUCH A LAMP AND METHOD OF USE

[0001] FIELD OF APPLICATION OF THE INVENTION

The invention relates to the field of lamps and in particular to adaptations making it possible to ensure a plurality of functions such as lighting, heating, disinfection, etc. in the best conditions by luminous means.

[0003] DESCRIPTION OF THE STATE OF THE ART

[0004] A lamp is an object conventionally intended to produce light.

[0005] Beyond a first lighting function, the light produced can have beneficial effects, in particular on a nearby living being. Light therapy exploits these effects.

[0006] In the visible spectrum, it is known that blue light has antimicrobial properties that can be used in medicine.

[0007] There are also lamps emitting different electromagnetic radiation.

[0008] For example, it is known to use UV (Ultraviolet) electromagnetic radiation for disinfection purposes. Thus, it is known in the prior art to subject surfaces, objects to UV radiation (Ultraviolet) for disinfection purposes such as in document WO9413331.

[0009] Depending on the wavelength, UV radiation can also be used in light therapy.

[0010] It is also known in the prior art to subject surfaces and objects to IR (infrared) radiation. Infrared radiation can also bring the surface, the object, the product to high temperature or interact with a chemical compound to release a compound with aseptic properties.

It appears that these lamps are used separately. A use of several rays therefore today requires a plurality of lamps. [0012] In addition, if certain types of radiation are sought, others can only be used in the absence of any living being in order to avoid the dangerous effects thereof.

[0013] BRIEF DESCRIPTION OF THE INVENTION

[0014] Finding this, the applicants have carried out research aimed at proposing a solution avoiding the use of a plurality of different lamps when several radiations are desired. Another object of this research was to avoid any possibility of exposure to a harmful effect of certain radiations.

[0015] This research led to the design and production of a remarkable lamp in that it combines:

[0016] - a means of emitting radiation in the visible spectrum,

[0017] - a means of emitting radiation in the spectrum of blue light,

[0018] - a means of emitting ultraviolet di UV radiation,

[0019] Each means being associated with a remotely controllable switch or not and with a power regulator which, integrated into the lamp, control and regulate according to the means of transmission the same power supply.

This characteristic is particularly advantageous in that it makes it possible to propose a lamp with emission means at differentiated wavelengths which will be able to operate with a single or combined radiation depending on the intended use. The purpose of this lamp is that in addition to a lighting function, it is able to disinfect the air and/or particles and aerosols (likely to contain a virus, bacteria, pathogen, etc.. .) deposited on solid or liquid surfaces.

Another object of the invention relates to a method of using such a lamp which will be described below.

[0022] Thus, it will be possible to envisage a default or modifiable programming of the operation of the lamp.

[0023] The presence of the regulators ensures operation in the correct wavelength. Indeed, according to another particularly advantageous characteristic of the invention, the power regulator of the transmission means other than in the visible spectrum regulates the power for the purpose of delivering a dose of radiation with a disinfectant function. Existing lights are not capable of providing the same dose of radiation for disinfection purposes, whereas the lamp of the invention has a regulated power for this purpose for each emission means.

[0024] Such a lamp makes it possible to envisage lighting and disinfection functions. Indeed, the means of emitting radiation in the blue light spectrum will make it possible to use the biocidal properties of this radiation even when a living being is present. This radiation in the blue light spectrum will be used in particular to inhibit the presence of viruses such as coronaviruses and more particularly the virus responsible for COVID19.

[0025] Radiation applies both to the air and to surfaces.

[0026] UV radiation will be able to be used directly as a disinfectant in the absence of living beings.

It is understood that the lamp of the invention makes it possible to provide a disinfection solution, in particular for public reception areas by simply replacing all or part of the lighting means of such a place. It makes it possible to envisage a disinfectant operation in the presence of the public and in its absence.

Thus, another object of the invention is a piece of furniture equipped with such a lamp and which is remarkable in that it comprises means for controlling the switches fitted to the lamp.

The functions of the lamp of the invention of this furniture can be associated with other means of disinfection, filtration separation.

[0030] This furniture can be made up of public reception furniture (table, chairs, etc.) or an independent means that is positioned near said public reception furniture.

It is also understood that the lamp of the invention will facilitate the operation of public transport vehicles by providing disinfection before, during and after the presence of the public. [0032] The lamp of the invention is in particular capable of replacing the common and/or individual lighting of the cabins of vehicles, in particular those for the reception of passengers.

[0033] The vehicles concerned are numerous and may be part of the following list:

[0034] - Air vehicles (planes, drones, satellites, balloons),

[0035] - Land vehicles: cars, trucks, buses, trains,

[0036] - Maritime vehicles: Boats, cargo ships, ferries, drones, submarines.

Thus, another object of the invention is a means of transport equipped with such a lamp and which is remarkable in that it comprises means for controlling the switches fitted to the lamp.

In addition, in the context of the implementation of chemical disinfection, the presence of particular radiation emission means makes it possible to activate certain properties by implementing a luminochemical process.

This is the case during disinfection using hydrogen peroxide, which sees its effectiveness multiplied by a factor ranging from 10 to 100 when it is subjected to UV radiation. This effect can be better exploited thanks to the invention by avoiding the deployment of dedicated UV radiation emission means when this effect is desired since the lamps of the invention are already installed.

[0040] The search for the most effective disinfection inside a vehicle using a luminochemical process tends to promote a new vehicle or means of transport such as an airplane in that it carries a tank of peroxide solution hydrogen in particular intended for this function. Thus, according to another characteristic, said means of transport or vehicle is remarkable in that it carries a tank of hydrogen peroxide solution which interacts with the UV radiation of the lamp.

The peroxide solution is then sprayed into the cabin of the vehicle and subjected to UV radiation emitted by the lamp of the invention already present in the cabin. [0042] The presence of the lamps of the invention promotes the reboarding of such a hydrogen peroxide solution which can be integrated into a process for managing liquid or gaseous fluids necessary for the operation of said vehicle.

This type of lamp can also be used in other areas such as:

[0044] - Lighting and disinfection in the domestic environment,

[0045] - Lighting and disinfection in buildings, buildings, offices, hospitals, clinics, airports,

[0046] - Lighting and disinfection in streets, public roads, roads and highways.

In order to guarantee the absence of UV emission in the event of the presence of a living being, said UV radiation emission means is associated with a presence detector preventing the supply of the UV emission means in case of presence. Thus, no harmful radiation can be emitted in the event of a detected presence. This presence detector can be integrated into the lamp or external to it.

According to another particularly advantageous characteristic of the invention, the lamp additionally comprises means for emitting infrared radiation called IR or near infrared, associated with a remote controllable switch and a power regulator which, integrated into the lamp, control and regulate the power supply to implement an IR emission.

Such a lamp has new functions, namely heating and possible implementation of luminochemical processes.

As explained above, another object of the invention consists of the method of a lamp according to the invention.

According to a particularly advantageous characteristic, the method is remarkable in that it comprises the following operations:

[0052] - definition of an operating time range for each means of transmission,

[0053] - control of the switches according to the defined operating range. [0054] Thus, in the context of a company's lighting, the lamp is authorized to activate its means of emitting visible spectrum radiation, blue light and IR radiation during the hours of activity of the company and to activate its UV emission means during closing hours. Any non-harmful radiation can be associated with UV such as blue light.

[0055] The same applies to the use inside a cabin of a means of transporting passengers where the means for emitting visible spectrum radiation, blue light and IR radiation during hours can be activated during the hours of use of the vehicle and where the UV emitting means is only activated when no passengers are present.

It is also possible to combine the disinfecting effects by associating, for example, blue light with UV with or without IR.

Indeed, as pathogens have different radiation absorption capacities, by combining radiation, the desired disinfection is more effective.

Thus, according to another particularly advantageous characteristic of the invention, the various transmission means can transmit:

[0059] - Simultaneously, or

[0060] - Not simultaneously, each transmission means operating alone over a defined period and according to the desired function, or

[0061] - Alternately.

[0062] The fundamental concepts of the invention having just been explained above in their most elementary form, other details and characteristics will emerge more clearly on reading the description which follows and with reference to the appended drawings, giving by way of non-limiting examples, embodiments of a lamp, furniture and a vehicle in accordance with the invention.

[0063] BRIEF DESCRIPTION OF THE DRAWINGS

[0064] [Fig. 1] is a schematic drawing of an embodiment of a lamp according to the invention; [0065] [Fig. 2] is a schematic drawing of another embodiment of a lamp according to the invention;

[0066] [Fig. 3] is a schematic drawing of an embodiment of furniture according to the invention;

[0067] [Fig. 4] is a schematic drawing of another embodiment of furniture according to the invention;

[0068] [Fig. 5] is a schematic drawing of an embodiment of a vehicle according to the invention;

[0069] [Fig. 6] is a schematic drawing of an embodiment of a vehicle according to the invention.

[0070] DESCRIPTION OF EMBODIMENTS

[0071] As illustrated in Figure 1, the lamp referenced 100 as a whole consists of light emission bulbs with adaptation, adjustment and adjustment of the frequency (wavelength) of light emission.

This lamp 100 comprises a bulb 110 and a base 120. It accommodates in its interior volume several sub-lamps or emission means providing several functions:

- Function disinfection and / or activation of hydrogen peroxide and / or neutralization of residues of hydrogen peroxide in the air and on the solid surfaces of the cabin of the vehicle: emission in the ultraviolet by means 200 emission of UV radiation

[0074] - Lighting function: emission of light in the visible by means of emission 300 in the visible spectrum

[0075] - Viral disinfection function: emission of light in the spectrum of blue light by means of emission 400 in the spectrum of blue light.

These transmission means 200, 300 and 400 are mounted in parallel. Each means comprises a manual or automatic or remote-controlled device 210, 310, 410, for cutting off its electrical power supply. In addition, each means 200, 300, 400 comprises a power regulator 220, 320, 420, which make it possible to provide the right electrical power for the type of emission proposed and also to regulate the wavelengths in the emitted spectrum.

As illustrated by the drawing in Figure 2, the lamp 100' implements an additional function:

[0078] - Heating and/or disinfection function: emission in the infrared by means 500 of emission of IR radiation, associated with a manual or automatic or remote-controlled device 510 and with a power regulator 520.

As illustrated in the two embodiments, the means 200 for emitting UV radiation is associated with a presence detector 230 preventing the supply of the means for emitting UV in the event of detected presence. According to one embodiment, the presence detector is outside the lamp and the element 230 receives the instructions from the latter.

[0080] Each lamp or emitting means may consist of two or more groups of sub-lamps (small bulbs). Groups of sublamps can operate:

[0081] - Simultaneously (disinfection function + lighting function -i-possibly heating function),

- Or Not simultaneously, each group of sub-lamps operating alone over a defined period and according to the desired function (lighting or disinfection or possibly heating).

- Or alternately (alternating lighting function with disinfection function with a well-defined lighting duration Te and a well-defined disinfection duration Td).

The lamps or sub-lamps can be filament and/or diode and/or gas.

[0085] Figures 3 and 4 illustrate embodiments of furniture accommodating one or more lamps of the invention.

[0086] Figure 3 illustrates a table T comprising a support mast 600 for two lamps 100. These lamps ensure the disinfection of the ambient air at the level of the table by blue light or blue light coupled with infrared light. Blue light and infrared light are harmless to be human. Not only do blue light and infrared light have an effect on the virus, but they also activate the immune defenses and allow exposed people to better resist infection with viruses such as the one responsible for COVID19. The food and liquids consumed and their containers will also be exposed, which also contributes to their disinfection.

[0087] According to the preferred but non-limiting embodiment illustrated, in order to complete the effects of the lamp, the mast 600 also supports halfway between the table and the lamps, a box 610 comprising the functional elements necessary for the functions following:

[0088] - Air suction at table level

[0089] - Filtration of the air sucked in on an anti-Covid-19 filter with retention of the Covid-19 virus on a washable filter or on a disposable filter (surgical-type filter or FFP2 or FFP3 or HEPA)

[0090] - Disinfection of filtered air by UVC lamp (lamp different from the 100’ lamp),

[0091 ] - Filtration again of the air disinfected by UVC on anti-Covid-19 HEPA filter with elimination of odors and pollutants,

[0092] - Diffusion of air purified by HEPA filter in the form of an invisible protective barrier with a purified air curtain to isolate and protect the occupants of each table against contamination that may come from the neighborhood or isolate and protect each occupant of the table against contamination from other people at the same table.

[0093] In order to implement this function, the plate 620 of the table T and/or the stem 630 are provided with nozzles for projecting filtered air from the box 610.

[0094] The embodiment illustrated in Figure 4 uses the same features but the mast 600 'equipped with a lamp 100' and a box 610' is no longer integrated into the table T 'but constitutes an independent element .

Figures 5 and 6 illustrate embodiments of a vehicle cabin such as that of an airplane A accommodating one or more lamps 100' of the invention and which embeds a hydrogen peroxide solution (concentration between 3 and 70% by mass) in tank 710.

[0096] The 100’ lamp will provide lighting, blue light and UV disinfection and IR heating. It will also emit UV radiation during the disinfection of the cabin 700 by the peroxide from the tank 710.

[0097] The effectiveness of the peroxide solution will be multiplied and it can also be removed more quickly.

In the context of the management of the fluids necessary for the operation of a vehicle such as an aircraft, hydrogen peroxide can have several other uses:

[0099] - Produce oxygen by catalytic and/or electrocatalytic and/or electrical decomposition by means of the decomposer 720 for: a. - The provision by means of pipes 730 for human breathing either mixed with air outside the cabin or air recycled from the cabin (air passing beforehand through a purifier 731), or in the form of pure oxygen to be distributed at the level of the masks 740 fitted to the cabin 700 of vehicle A, which makes it possible to have a reserve of oxygen for breathing throughout the duration of the flight and not an oxygen reserve of 15 to 20 minutes as now. b. - The use of oxygen as an oxidizer in the O2-H2 or air-H2 fuel cell likely to be fitted to the vehicle,

- Produce a solution of hydrogen peroxide H2O2 at low concentration (less than 10% by mass) for: a. - Permanent disinfection of the drinking water circuit 800 of the vehicle which comprises RG and RT taps each associated with a cartridge 810 for remineralization and/or partial or total neutralization of hydrogen peroxide (catalytic or electrocatalytic or electric neutralization). 820 disinfection bowls for toilets also equip the 800 network. b. - Disinfection of drinking water circulating in the drinking water circuit 800, c. The disinfection of the cabin of the vehicle by aerosolization (spray) by means of the pipes and nozzles 830 whose effectiveness will be increased by the use of the UV radiation emission means of the lamps 100' of the invention allowing the activation (reinforcement the disinfectant effect of hydrogen peroxide) and the rapid neutralization of hydrogen peroxide residues at the end of disinfection, d. Disinfection of bowls 820 and toilet flushes fitted to the vehicle;

[0101] - Possibly producing hydrogen H2 by anodic oxidation of hydrogen peroxide H2O2 for the purpose of supplying air-H2 or O2-H2 or H2O2-H2 fuel cells via line 910 or its use in the combustion engines likely to equip the vehicle;

[0102] - Use the on-board H2O2 hydrogen peroxide to supply the H2O2-H2 fuel cells likely to be fitted to the vehicle via line 920;

[0103] - Use on-board hydrogen peroxide H2O2 as an oxidizer in the combustion engines likely to be fitted to the vehicle.

The hydrogen peroxide decomposer 720 can be:

[0105] - electric, or

[0106] - electrocatalytic, or

[0107] - catalytic.

The difference between the embodiment illustrated by FIG. 5 and that illustrated by FIG. 6 resides in the ability to recover, in the hydrogen peroxide solution tank 710′ of FIG. 6, the hydrogen peroxide H2O2 in gaseous state from peroxide decomposer 720.

[0109] It should be noted that the production of oxygen and its injection into the cabin allows the implementation of a luminochemical disinfection process by production of ozone by subjecting the oxygen produced to UV radiation from the lamps of the invention.

It is understood that the lamp, the method of use, the furniture and the vehicle which have just been described and represented above, have been for the purpose of disclosure rather than limitation. Of course, various adjustments, modifications and improvements may be made to the above examples, without departing from the scope of the invention.

Claims

[Claim 1] Lamp (100), CHARACTERIZED IN THAT it combines:

- a means for emitting radiation in the visible spectrum (300),

- a means of emitting radiation in the blue light spectrum (400),

- means for emitting ultraviolet radiation called UV (200), each means being associated with a switch (210, 310, 410) remotely controllable or not and with a power regulator (220, 320, 420) which , integrated in the lamp (100), control and regulate according to the transmission means the same power supply.

[Claim 2] Lamp (100) according to claim 1, CHARACTERIZED BY THE FACT THAT said UV radiation emission means (200) is associated with a presence detector (230) preventing the supply of the UV radiation emission means UV (200) if present.

[Claim 3] Lamp (100') according to claim 1, CHARACTERIZED BY THE FACT THAT it comprises means for emitting infrared radiation called IR or near infrared (500), associated with a switch (510) controllable at remote and a power regulator (520) which, integrated with the lamp (100), control and regulate the power supply to implement an IR emission.

[Claim 4] Lamp (100) according to any one of claims 1 to 3, CHARACTERIZED IN THAT the power regulator (220, 420, 520) of the transmission means other than in the visible spectrum regulates the power at for the purpose of submitting a dose of radiation with a disinfectant function.

[Claim 5] Furniture element (T) fitted with a lamp (100') according to any one of claims 1 to 4, CHARACTERIZED IN THAT it comprises means for controlling the switches fitted to the lamp (100') .

[Claim 6] Vehicle (A) fitted with a lamp (100') according to any one of Claims 1 to 4, CHARACTERIZED IN THAT it comprises means for controlling the switches fitted to the lamp (100').

[Claim 7] Vehicle (A) according to claim 6, CHARACTERIZED BY THE FACT THAT it carries a reservoir (710) of a hydrogen peroxide solution which interacts with the UV radiation of the lamp (100').

[Claim 8] Method of using a lamp (100, 100') according to any one of Claims 1 to 4, CHARACTERIZED IN THAT it comprises the following operations:

- definition of an operating time slot for each means of transmission,

- control of the switches according to the defined operating range.

[Claim 9] Method of using a lamp (100, 100') according to any one of Claims 1 to 4, CHARACTERIZED IN THAT the various emission means can emit:

- Simultaneously, or

- Not simultaneously, each means of transmission operating alone over a defined period and according to the desired function, or

- Alternately.