CN111594800A - Indoor dispersion filtering type fluorescent atmosphere lamp - Google Patents
Indoor dispersion filtering type fluorescent atmosphere lamp Download PDFInfo
- Publication number
- CN111594800A CN111594800A CN202010548335.2A CN202010548335A CN111594800A CN 111594800 A CN111594800 A CN 111594800A CN 202010548335 A CN202010548335 A CN 202010548335A CN 111594800 A CN111594800 A CN 111594800A
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- CN
- China
- Prior art keywords
- light
- plate
- atmosphere lamp
- indoor
- guide pipe
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S11/00—Non-electric lighting devices or systems using daylight
- F21S11/002—Non-electric lighting devices or systems using daylight characterised by the means for collecting or concentrating the sunlight, e.g. parabolic reflectors or Fresnel lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S11/00—Non-electric lighting devices or systems using daylight
- F21S11/007—Non-electric lighting devices or systems using daylight characterised by the means for transmitting light into the interior of a building
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/40—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of hollow light guides
Abstract
The invention discloses an indoor dispersion filtering type fluorescent atmosphere lamp which comprises a light guide pipe embedded in a wall body, a hidden box and a control wheel rotatably installed on the inner side of the wall body, wherein the light guide pipe is inserted in the hidden box, one end of the light guide pipe, far away from the hidden box, extends to the outer side of the wall body and is sleeved with a fixed seat, and an arc-shaped transparent condensing cover is installed on the fixed seat. According to the invention, the short-wave purple light at the position where the sunlight is processed and screened is irradiated on the fluorescent liquid light, so that the heat is reduced, the atmosphere illumination is realized, the electric energy consumption is not needed, and the electrodeless dimming function of the atmosphere lamp is realized by changing the irradiation amount of the short-wave purple light through the control wheel and the light-transmitting plate.
Description
Technical Field
The invention relates to the field of lighting atmosphere lamps, in particular to an indoor dispersion filtering type fluorescent atmosphere lamp.
Background
With the improvement of the quality of life, more and more people choose to spend more time on entertainment life, and most people choose to play in various famous scenic spots, scenic spots and the like, such as ocean parks and the like, large indoor entertainment places of the public entertainment places generally need to provide a certain illumination amount in the daytime, and atmosphere lamps are generally chosen for quiet environments.
The existing atmosphere lamp basically adopts an LED lamp post to realize atmosphere light, the electric energy is consumed when the atmosphere lamp is used, and the LED generates heat, so that the service time of the atmosphere lamp is not too long, the indoor temperature is increased due to the long-time use of a large number of atmosphere lamps, the refrigeration energy consumption of an air conditioner is increased, and the power consumption is indirectly increased.
Disclosure of Invention
The invention aims to solve the defects of power consumption and heat generation of an LED atmosphere lamp in the prior art, and provides an indoor dispersion filtering type fluorescent atmosphere lamp.
In order to achieve the purpose, the invention adopts the following technical scheme:
an indoor dispersion filtering type fluorescent atmosphere lamp comprises a light guide pipe embedded in a wall body, a cassette and a control wheel rotatably installed on the inner side of the wall body, wherein the light guide pipe is inserted in the cassette;
the beam splitting holes filter a plurality of parallel light beams into a parallel light beam which passes through, the parallel light beam is emitted on the triple prism through the beam splitting holes to be dispersed to form seven-color light rays, and the seven-color light rays are refracted by the multi-focus concave lens to form a plurality of monochromatic parallel light beams;
the utility model discloses a luminous module, including dark box, light guide pipe, light filtering plate, transparent diffusion board, light filtering plate, fluorescent tube net, fluorescent liquid, light filtering plate, light guiding plate, light filtering.
Preferably, the focus of the arc-shaped transparent light-gathering cover is positioned at the light-transmitting small hole on the beam light plate;
the transparent snoot of arc assembles external sunshine to printing opacity aperture department, and the board of restrainting can be with unnecessary parasitic light filtering, and the sunshine after the spotlight passes through the printing opacity aperture scattering, realizes single-point light source scattering phenomenon.
Preferably, the light-transmitting small hole is provided with a focus of a parallel light convex lens;
the heat dissipation of the single-point light source of the light-transmitting small hole is the focus of the parallel light convex lens, and then the sunlight scattered by the light-transmitting small hole is refracted by the parallel light convex lens into a plurality of parallel lights.
Preferably, the multilayer filter comprises red, orange, yellow, green, cyan, blue filters;
the multi-layer filter plate absorbs and filters red, orange, yellow, green, cyan and blue through the red, orange, yellow, green, cyan and blue filter plate, only purple short-wave light passes through the multi-layer filter plate, the purple short-wave light irradiates the fluorescent liquid to emit fluorescence, the phenomenon that the long-wave light irradiates the fluorescent liquid to cause fluorescence fading is avoided, electric energy does not need to be consumed in the daytime through fluorescence luminescence, and after the light disappears, the fluorescent liquid can continuously emit light for two or three hours, so that the business illumination time is met.
Preferably, the purple light absorption columns correspond to the light splitting holes one by one and have the same diameter;
the purple light is absorbed by the purple light absorption columns and the light splitting holes to turn off the fluorescent lamp, and the purple light is staggered with the light splitting holes to turn on the fluorescent lamp, so that the operation is simple, and electric energy consumption is not needed.
The invention has the following beneficial effects:
1. sunlight single points are scattered, collimated, filtered and dispersed to form seven monochromatic parallel lights through a beam light plate, a parallel light convex lens, a beam splitting plate, a triple prism and a multi-focus concave lens in the light guide tube, so that sunlight light waves can be effectively utilized, and the light splitting effect of the atmosphere lamp on the sunlight is improved.
2. Through the transparent snoot of arc with the sun pipeline gathering in the printing opacity aperture department of restrainting the worn-out fur, the printing opacity aperture of being convenient for can enough the at utmost assemble the solar ray energy, can make scattered light again to jet out from the focus of parallel light convex lens to by refraction becomes parallel light, reduced solar ray's energy loss promptly, also avoided the leaded light in-process miscellaneous light interference of appearance, guarantee the stability of light path.
3. Monochromatic light after being dispersed and parallel by the multi-focus concave lens is filtered through the multi-layer filter plate, namely the monochromatic light with longer wavelength is absorbed, only the purple light with shorter wavelength passes through the multi-layer filter plate, the short-wave purple light can be ensured to enable the fluorescent liquid to normally emit light, the fluorescent liquid can be prevented from rapidly losing efficacy due to the long-wave light, and the stability of fluorescent lighting is improved.
4. The fluorescent liquid emits fluorescent cold light through ultraviolet irradiation, the heating amount is low, the fluorescent liquid emits light through external sunlight, electric energy consumption is not needed, the irradiation amount of the short-wave ultraviolet irradiation on the fluorescent liquid can be rapidly adjusted through the control wheel and the light-transmitting plate, the light-emitting brightness of the fluorescent liquid is changed, and stepless light adjustment is achieved.
In conclusion, the short-wave purple light at the position where the sunlight is processed and screened is irradiated on the fluorescent liquid light, so that heat is reduced, atmosphere illumination is realized, electric energy consumption is not needed, and the electrodeless dimming function of the atmosphere lamp is realized by changing the irradiation amount of the short-wave purple light through the control wheel and the light-transmitting plate.
Drawings
FIG. 1 is a schematic structural diagram of an indoor dispersion filtering fluorescent atmosphere lamp according to the present invention;
FIG. 2 is an enlarged view of a portion of a light pipe of an indoor dispersion filtering fluorescent atmosphere lamp according to the present invention;
FIG. 3 is an enlarged view of a portion of a cassette of an indoor dispersion filter type fluorescent atmosphere lamp according to the present invention;
FIG. 4 is an enlarged view of a portion of a light-transmitting plate of an indoor dispersion-filtering fluorescent atmosphere lamp according to the present invention.
In the figure: 1 light guide pipe, 11 light beams, 111 small light transmission holes, 12 parallel light convex lenses, 13 beam splitting plates, 131 beam splitting holes, 14 triple prisms, 15 multi-focus concave lenses, 2 dark boxes, 21 light filter plates, 22 transparent diffusion plates, 23 beam splitting plates, 231 beam splitting holes, 24 adjusting rings, 241 light transmission plates, 2411 purple light absorption columns, 3 fluorescent boxes, 31 fluorescent pipe networks, 311 fluorescent liquid, 4 control wheels, 41 control belts, 5 fixing seats and 6 arc-shaped transparent condensing hoods.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, an indoor dispersion filter type fluorescent atmosphere lamp comprises a light guide tube 1 embedded in a wall body, a cassette 2 and a control wheel 4 rotatably mounted on the inner side of the wall body, wherein the light guide tube 1 is inserted in the cassette 2, one end of the light guide tube 1, which is far away from the cassette 2, extends to the outer side of the wall body and is sleeved with a fixed seat 5, an arc-shaped transparent condensing hood 6 is mounted on the fixed seat 5, a beam plate 11, a parallel light convex lens 12, a beam splitting plate 13, a triple prism 14 and a multi-focus concave lens 15 are sequentially mounted in the light guide tube 1 from left to right, a light-transmitting small hole 111 is formed in the beam plate 11, and a beam splitting hole 131 is formed in the beam splitting plate 13;
the beam splitting holes 131 filter a plurality of parallel lights into a parallel light beam which passes through, the parallel light beam passes through the beam splitting holes 131 and is irradiated on the triple prism 14 to be dispersed to form seven-color light rays, and the seven-color light rays are refracted by the multi-focus concave lens 15 to form a plurality of monochromatic parallel light rays;
install multilayer filter plate 21, transparent diffusion plate 22 and minute orifice plate 23 from left to right in proper order in the magazine 2, a plurality of minute light holes 231 have been seted up on minute orifice plate 23, it inlays and is equipped with adjustable ring 24 to rotate on the magazine 2, light-passing plate 241 is installed to the inner ring of adjustable ring 24, and light-passing plate 241 is close to minute orifice plate 23, it is equipped with a plurality of purple extinction columns 2411 to inlay on the light-passing plate 241, install control band 41 jointly on adjustable ring 24 and the control wheel 4, the one side printing opacity that light pipe 1 was kept away from to magazine 2 is installed fluorescence box 3, install fluorescence pipe network 31 in the fluorescence box 3, it has fluorescence liquid 311 to inject in the fluorescence pipe network 31.
Preferably, the focus of the arc-shaped transparent light-gathering cover 6 is positioned at the light-transmitting small hole 111 on the light beam plate 11;
the arc-shaped transparent condensing hood 6 converges the external sunlight to the light-transmitting small hole 111, the light-bundling plate 11 can filter redundant stray light, and the converged sunlight is scattered through the light-transmitting small hole 111 to realize the single-point light source scattering phenomenon.
Preferably, the light-transmitting small hole 111 is the focal point of the parallel light convex lens 12;
the single-point light source of the small light-transmitting hole 111 radiates heat to the focus of the parallel light convex lens 12, and then the sunlight scattered by the small light-transmitting hole 111 is refracted by the parallel light convex lens 12 into a plurality of parallel lights.
Preferably, the multilayer filter 21 comprises red, orange, yellow, green, cyan, blue filters;
the multilayer filter plate 21 absorbs and filters red, orange, yellow, green, cyan and blue through the red, orange, yellow, green, cyan and blue filter plate, only purple short-wave light passes through the filter plate, the purple short-wave light irradiates the fluorescent liquid 311 to emit fluorescence, the phenomenon that the long-wave light irradiates the fluorescent liquid 311 to cause fluorescence fading is avoided, through fluorescence luminescence, electric energy does not need to be consumed in the daytime, and after the light disappears, the fluorescent liquid 311 can continuously emit light for two or three hours, so that the business illumination time is met.
Preferably, the purple light absorption columns 2411 correspond to the light splitting holes 231 one by one and have the same diameter;
the purple light is absorbed by the purple light absorption columns 2411 and the light splitting holes 231 to turn off the fluorescent lamp, and the purple light is staggered from the light splitting holes 231 through the purple light absorption columns 2411 to turn on the fluorescent lamp through the purple light, so that the operation is simple, and electric energy consumption is not needed.
When the invention is used, sunlight is condensed to the light-transmitting small holes 111 on the beam light plate 11 in the light guide pipe 1 through the arc-shaped transparent condensing hood 6, single-point light source scattering to the parallel light convex lenses 12 is realized through the light-transmitting small holes 111, the sunlight is refracted into parallel light rays because the light-transmitting small holes 111 are the focuses of the parallel light convex lenses 12, the parallel light rays are filtered into a beam of parallel light through the beam-splitting holes 131 on the beam-splitting plate 13, then the parallel light rays are dispersed through the prism 14 to form seven monochromatic light beams, the seven monochromatic light beams are refracted into seven monochromatic parallel light beams through the multifocal concave lens 15, the seven monochromatic parallel light beams absorb and filter long-wave monochromatic light through the multilayer filter plate 21, only short-wave purple light is emitted, the short-wave purple light is diffused through the transparent diffusion plate 22, so that one side of the beam hole plate 23 is filled with the short-wave purple light, the short-wave purple light is emitted on the, then, the fluorescent liquid 311 starts to emit light by irradiating the transparent plate on the fluorescent pipe network 31, so that electric energy is not consumed, and heat is not generated;
the rotation control wheel 4 drives the adjusting ring 24 to rotate through the control belt 41, so that the light-transmitting plate 241 rotates, when the purple light absorption columns 2411 gradually coincide with the light splitting holes 231, the short-wave purple light is absorbed by the purple light absorption columns 2411, the irradiation amount of the short-wave purple light is reduced, namely, the brightness of the fluorescent liquid 311 is reduced, and the function of stepless dimming is realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. An indoor dispersion filtering type fluorescent atmosphere lamp comprises a light guide pipe (1) embedded in a wall body, a cassette (2) and a control wheel (4) rotatably installed on the inner side of the wall body, and is characterized in that the light guide pipe (1) is inserted in the cassette (2), one end, far away from the cassette (2), of the light guide pipe (1) extends to the outer side of the wall body and is sleeved with a fixing seat (5), an arc-shaped transparent condensing hood (6) is installed on the fixing seat (5), a beam plate (11), a parallel light convex lens (12), a beam splitting plate (13), a triple prism (14) and a multi-focus concave lens (15) are sequentially installed in the light guide pipe (1) from left to right, a light-transmitting small hole (111) is formed in the beam plate (11), and a beam splitting hole (131) is formed in the beam splitting plate (13);
install multilayer filter plate (21), transparent diffuser plate (22) and minute orifice plate (23) from left to right in proper order in magazine (2), divide and seted up a plurality of minutes light hole (231) on orifice plate (23), it inlays and is equipped with adjustable ring (24) to rotate on magazine (2), light-passing board (241) are installed to the inner ring of adjustable ring (24), and light-passing board (241) are close to minute orifice plate (23), it is equipped with a plurality of purple light-absorbing columns (2411) to inlay on light-passing board (241), install control band (41) jointly on adjustable ring (24) and control wheel (4), one side printing opacity that light pipe (1) was kept away from in magazine (2) is installed fluorescence box (3), install fluorescence pipe network (31) in fluorescence box (3), it has fluorescence liquid (311) to pour into in fluorescence pipe network (31).
2. An indoor dispersion filter type fluorescent atmosphere lamp as claimed in claim 1, wherein the focus of the arc-shaped transparent light-gathering cover (6) is located at the light-transmitting small hole (111) on the light beam plate (11).
3. An indoor dispersing filter type fluorescent atmosphere lamp as claimed in claim 1, wherein the light-transmitting aperture (111) is at the focus of a parallel light convex lens (12).
4. An indoor dispersive filtering fluorescent atmosphere lamp according to claim 1, wherein the multilayer filter plate (21) comprises red, orange, yellow, green, cyan, blue filter plates.
5. The indoor dispersing filter type fluorescent atmosphere lamp as claimed in claim 1, wherein the plurality of violet absorption columns (2411) and the plurality of beam splitting holes (231) are in one-to-one correspondence and have the same diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548335.2A CN111594800A (en) | 2020-06-16 | 2020-06-16 | Indoor dispersion filtering type fluorescent atmosphere lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548335.2A CN111594800A (en) | 2020-06-16 | 2020-06-16 | Indoor dispersion filtering type fluorescent atmosphere lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111594800A true CN111594800A (en) | 2020-08-28 |
Family
ID=72190216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010548335.2A Withdrawn CN111594800A (en) | 2020-06-16 | 2020-06-16 | Indoor dispersion filtering type fluorescent atmosphere lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111594800A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475626A (en) * | 2020-11-10 | 2021-03-12 | 广州澳沃司照明电器有限公司 | Laser cutting mechanism for intelligent manufacturing |
-
2020
- 2020-06-16 CN CN202010548335.2A patent/CN111594800A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475626A (en) * | 2020-11-10 | 2021-03-12 | 广州澳沃司照明电器有限公司 | Laser cutting mechanism for intelligent manufacturing |
| CN112475626B (en) * | 2020-11-10 | 2022-09-06 | 武汉华俄激光工程有限公司 | Laser cutting mechanism for intelligent manufacturing |
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Application publication date: 20200828 |
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| WW01 | Invention patent application withdrawn after publication |