Lateral light-emitting lighting device and lamp
By using multiple light source areas and independently controlled light emitting units in the side illumination device, the sunlight effect at different time periods is simulated, and the problem of single light sources of traditional blue sky lights is solved, achieving higher restore and user experience.
Patent Information
- Application Number
- CN202420943623.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The traditional blue sky light source is single, and cannot reflect light changes. The surface luminous lighting device and the side luminous lighting device cannot form a realistic light effect. The side luminous lighting device has a single function and cannot adjust the color and light and dark according to user needs.
A side luminous lighting device is designed, including a housing, a light source assembly and a light distribution member. The light source assembly is composed of multiple light source areas, and each area is equipped with four colors of light emitting units. By independently controlling the color and brightness of the light emitting units, it is formed. The color transition area and the light and shadow transition area simulate the sunlight effect in different time periods.
Achieve higher reduction and user experience. Through the mixing of four colors of luminous units, the different light color effects from morning to dusk are evenly distributed, avoiding the problem of excessive or weak light in the area, satisfying the Diverse lighting needs.
Smart Images

Figure CN222210130U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lighting, in particular to a side-emitting lighting device and a lamp. Background Art
[0002] With the development of lighting technology, people's demand for lighting in different scenarios is getting higher and higher. Among them, blue sky lights that can simulate a variety of light effects are gradually favored by the market and are widely used in indoor lighting in homes, office buildings, shopping malls, stadiums, stations, airports, etc.
[0003] The traditional blue sky light source is relatively single and cannot reflect the changes in light. The combination of surface-emitting lighting devices and side-emitting lighting devices cannot form a realistic lighting effect. In addition, the side-emitting lighting device has a single function and cannot adjust the color and brightness according to user needs.
[0004] In view of this, it is indeed necessary to provide a side-emitting lighting device to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a side-emitting lighting device capable of realizing zoned light control and a lamp using the side-emitting lighting device.
[0006] To achieve the above object, the utility model provides a side-emitting lighting device, comprising:
[0007] The housing comprises a top wall, a frame and a light emitting member, wherein the frame is connected to the top wall and extends in a direction away from the top wall, the light emitting member abuts against the top wall and the frame, and the light emitting member is arranged on the inner side of the frame facing the top wall, and a light source installation space is formed between the top wall, the frame and the light emitting member;
[0008] The light source assembly is arranged in the light source installation space, and includes a light source substrate arranged around the light output member, wherein the light source substrate is divided into a plurality of light source areas, each of which is provided with light-emitting units of four colors, and the number and arrangement of the light-emitting units in two adjacent light source areas are the same.
[0009] Optionally, the light-emitting units of four colors are arranged in a circular pattern in sequence along the extension direction of the light source substrate, the four colors include red, blue, white and green, and the number of the light-emitting units in the light source area is N, where N≥1.
[0010] Optionally, each of the light-emitting units can be independently controlled, and a color transition zone and / or a light / shadow transition zone can be formed on the light output member by controlling the color and lighting status of the light-emitting unit.
[0011] Optionally, a plurality of the light source areas are connected end to end to surround the light emitting element, and by controlling the colors and lighting states of the light emitting units in the plurality of the light source areas, an illuminated light emitting area, an unilluminated non-light emitting area, and a light / shadow transition area between the light emitting area and the non-light emitting area are formed on the light emitting element.
[0012] Optionally, a plurality of light source areas are partially arranged around the light emitting member, a non-light emitting area that is not illuminated is formed on the light emitting member not surrounded by the light source areas, an illuminated light emitting area is formed on the light emitting member by the light source areas away from the non-light emitting areas, and a light / shadow transition zone is formed on the light emitting member by the light source areas between the light emitting areas and the non-light emitting areas.
[0013] Optionally, the side-emitting lighting device includes a shading member, which is arranged together with the light source assembly around the light output member, the shading member forms a non-light output area that is not illuminated on the light output member, the light source area away from the shading member forms an illuminated light output area on the light output member, and the light source area between the light output area and the non-light output area forms a light / shadow transition zone.
[0014] Optionally, the light source area located in the light / shadow transition zone is defined as a transition light source area, and the brightness of the light-emitting unit in the transition light source area gradually decreases from the light-emitting area to the non-light-emitting area.
[0015] Optionally, the light source assembly is arranged on the top wall and / or the light source assembly is arranged on the frame; and / or,
[0016] The arrangement shape of the plurality of light source areas on the light source substrate is any one of a straight line, a curve, a ring, and an array, or a combination thereof.
[0017] Optionally, the side-emitting lighting device also includes a light distribution component, which is arranged in the light output circuit of the light source assembly. The light emitted by the light source assembly is emitted toward the light output component after being acted upon by the light distribution component. The light distribution component is any one or a combination of a light guide plate, a lens, a reflector, and a reflective cup.
[0018] A lamp comprises a surface-emitting lighting device and the above-mentioned side-emitting lighting device, wherein the surface-emitting lighting device is arranged on the inner side of the side-emitting lighting device and is surrounded by the side-emitting lighting device, the surface-emitting lighting device has a main light source light emitting surface, and the light emitting member is arranged around the main light source light emitting surface; part of the light emitted by the light source assembly is emitted after passing through the light emitting member, and part of the light is projected onto the main light source light emitting surface after passing through the light emitting member, so as to form a virtual image on the main light source light emitting surface.
[0019] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:
[0020] The embodiment of the utility model simulates the color of sunlight at different time periods by mixing the light emitted by the light-emitting units of four colors, simulating the different light color effects of sunlight from morning to dusk, so that the degree of restoration of the lamp is higher and the user experience is improved. In addition, the light source substrate is divided into multiple light source areas, and the number and arrangement of the light-emitting units in two adjacent light source areas are the same, which can achieve uniform distribution of light, avoid the problem of too strong or too weak light in some areas, and make the overall light effect more balanced. The side-emitting lighting device of the embodiment of the utility model adopts light-emitting units of four colors and arranges them in a cycle in sequence, and divides the light source substrate into multiple light source areas, so as to achieve zoned light control, achieve rich colors and light and shadow effects, and meet diverse lighting needs. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a three-dimensional structural diagram of a lamp according to an embodiment of the utility model;
[0022] Figure 2 yes Figure 1 A three-dimensional structural diagram of the side-emitting lighting device of the lamp shown;
[0023] Figure 3 yes Figure 2 A cross-sectional view of the side-emitting lighting device shown;
[0024] Figure 4 yes Figure 3 A partial enlarged view of the middle circle;
[0025] Figure 5 yes Figure 3 A plan view of the light source assembly;
[0026] Figure 6 It is a window shadow effect diagram that conforms to the embodiment of the utility model;
[0027] Figure 7 It is a lighting effect diagram of a surface-emitting lighting device and a side-emitting lighting device of a lamp in accordance with the embodiment of the utility model.
[0028] Description of reference numerals:
[0029] Lighting fixtures 100;
[0030] Side-emitting lighting device 200, housing 201, top wall 2011, frame 2012, light emitting member 2013, light source installation space 2014, light source assembly 202, light source substrate 2021, light emitting unit 2022, light emitting area 2031, non-light emitting area 2032, light / shadow transition area 2033;
[0031] Surface emitting lighting device 300 , main light source light emitting surface 301 , virtual image 302 . DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0033] It should be noted here that in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.
[0034] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0035] See also Figure 1 As shown, a lamp 100 of a preferred embodiment of the utility model is shown, and the lamp 100 includes a side-emitting lighting device 200 and a surface-emitting lighting device 300. The surface-emitting lighting device 300 simulates sunlight at different time periods in nature, and the side-emitting lighting device 200 is arranged outside the surface-emitting lighting device 300 and surrounds the surface-emitting lighting device 300. The side-emitting lighting device 200 simulates the effect of sunlight irradiating on the edge of the window. In addition, the side-emitting lighting device 200 can also form a virtual image 302 in the surface-emitting lighting device 300 to simulate the window shadow effect produced by the window edge on the window glass. The surface-emitting lighting device 300 and the side-emitting lighting device 200 are used together, so that the lamp 100 can better restore the effect of real sunlight shining into the room through the window.
[0036] See also Figure 2 to Figure 4As shown, the side-emitting lighting device 200 includes a housing 201 and a light source assembly 202. The housing 201 includes a top wall 2011, a frame 2012 and a light emitting member 2013. The frame 2012 is connected to the top wall 2011 and extends away from the top wall 2011. The light emitting member 2013 abuts against the top wall 2011 and the frame 2012. The light emitting member 2013 is arranged on the inner side of the frame 2012 facing the top wall 2011. A light source installation space 2014 is formed between the top wall 2011, the frame 2012 and the light emitting member 2013. The light source assembly 202 is arranged in the light source installation space 2014. The light emitting member 2013 is used as an exit for light, and its position is arranged on a side away from the frame 2012 to reduce the scattering and loss of light and improve the light effect. The side-emitting lighting device 200 is different from the conventional ambient light in that it only emits light toward the inner side of the lamp 100. In this embodiment, the frame 2012 is made of an opaque material, thereby creating an effect of sunlight entering and illuminating the window sill, visually forming an effect of a light-transmitting window.
[0037] See also Figure 5 As shown, the light source assembly 202 includes a light source substrate 2021 arranged around the light emitting member 2013, the light source substrate 2021 is fixedly connected to the frame 2012, and the light source substrate 2021 is divided into a plurality of light source areas, each of which is provided with light emitting units 2022 of four colors, and the light emitting units 2022 of four colors are sequentially arranged in a circular manner along the extension direction of the light source substrate 2021, and the light emitted by the light emitting units 2022 of four colors is mixed to simulate the color of sunlight at different time periods, and simulate the different light color effects of sunlight from morning to dusk, so that the restoration degree of the lamp 100 is higher and the user experience is improved. In addition, the number and arrangement form of the light emitting units 2022 in two adjacent light source areas are the same, and such an arrangement can achieve uniform distribution of light, avoid the problem of too strong or too weak light in some areas, and make the overall light effect more balanced.
[0038] In the present embodiment, the four colors of light-emitting units 2022 include a red light-emitting unit, a blue light-emitting unit, a white light-emitting unit, and a green light-emitting unit. Each light source area includes light-emitting units 2022 of four colors. The light-emitting units 2022 of four colors are arranged in a cycle in sequence in the light source area, and the number of light-emitting units 2022 in the light source area is 4N, N ≥ 1, so that the side-emitting lighting device 200 can produce richer color changes. For example, when the number of light-emitting units 2022 in a light source area is 2N, the distribution of the light-emitting units 2022 in the light source area is red, blue, white, green, red, blue, white, and green in sequence. The light-emitting units 2022 of these four colors are all arranged in a cycle in sequence along the extension direction of the light source substrate 2021. In other embodiments of the present invention, the four colors of the light-emitting units 2022 may also be other colors, refer to Figure 5 As shown, the four colors are red, blue, yellow and green.
[0039] Each light-emitting unit 2022 can be independently controlled, and by controlling the color and lighting state of the light-emitting unit 2022, a color transition zone and / or a light / shadow transition zone 2033 can be formed on the light-emitting member 2013. Each light-emitting unit 2022 can be independently controlled, which means that the user can precisely adjust the color and lighting state of each light-emitting unit 2022. This high degree of customization allows the creation of a variety of unique light source effects, including color transition zones and light / shadow transition zones 2033, providing users with great flexibility and creative space.
[0040] By precisely controlling the color and brightness of each light-emitting unit 2022 , a smooth color transition zone can be formed on the light-emitting element 2013 . This transition effect makes the color change more natural and smooth, and avoids abrupt color switching.
[0041] By adjusting the lighting state of the light emitting unit 2022, a light / shadow transition zone 2033 can also be formed, creating a sense of layering and three-dimensionality, thereby enhancing the artistry and expressiveness of the light source.
[0042] Furthermore, by adjusting the color and lighting state of the light emitting unit 2022, a color transition zone and a light / shadow transition zone 2033 can be formed simultaneously, thereby achieving rich lighting effects.
[0043] See also Figure 6-7 As shown, the light source area in the illuminated state forms a light emitting area 2031 on the light emitting member 2013, and the light source area not in the illuminated state forms a non-light emitting area 2032 on the light emitting member 2013, and a light / shadow transition area 2033 is formed between the light emitting area 2031 and the non-light emitting area 2032. Figure 6 To provide users with a variety of lighting options for window shadow effects in different colors and lighting conditions. Figure 7 This is the effect of applying the side-emitting lighting device 200 to the lamp 100 .
[0044] The light emitting area 2031 and the non-light emitting area 2032 are connected in a circular direction, and the light / shadow transition area 2033 is located at the junction of the light emitting area 2031 and the non-light emitting area 2032. The light source areas on one side of the light / shadow transition area 2033 are all in an illuminated state, and the light source areas on the other side of the light / shadow transition area 2033 are all in an unilluminated state. When simulating sunlight shining into the room through the window, part of the window edge is illuminated, and the other part of the window edge is all in a dark state. The light source area located in the light / shadow transition area 2033 is defined as the transition light source area, and the brightness of the light-emitting unit 2022 in the transition light source area gradually decreases from the light emitting area 2031 to the non-light emitting area 2032. With such a setting, a very natural and smooth light and shadow transition effect can be achieved, and the visual effect is better.
[0045] In this embodiment, the light source substrate 2021 is arranged in a circular shape, and the light emitting units 2022 are completely laid on the entire circle of the light source substrate 2021. The light emitting units 2022 of four colors are arranged in a circular pattern along the circular light source substrate, so that the multiple light source areas are connected end to end to surround the light emitting member 2013, that is, the illuminated light emitting area 2031 and the non-illuminated non-light emitting area 2032 are both provided with light emitting units 2022. By controlling the colors and lighting states of the light emitting units 2022 in the multiple light source areas, the illuminated light emitting area 2031, the non-illuminated non-light emitting area 2032, and the light / shadow transition area 2033 between the light emitting area 2031 and the non-light emitting area 2032 are formed on the light emitting member 2013, so as to simulate the sunlight entering from one side, illuminating the window edge on one side of the window, and forming a dark side on the window edge on the other side of the window, so that the display effect is more realistic.
[0046] In another embodiment, the light source substrate 2021 is not a complete circle, and a plurality of light source regions are partially arranged around the light emitting member 2013, a non-light emitting region 2032 that is not illuminated is formed on the light emitting member 2013 that is not surrounded by the light source region, an illuminated light emitting region 2031 is formed on the light emitting member 2013 in the light source region away from the non-light emitting region 2032, and a light / shadow transition region 2033 is formed in the light source region between the light emitting region 2031 and the non-light emitting region 2032. In this embodiment, the illuminated light emitting region 2031 is provided with a light emitting unit 2022, and the non-light emitting region 2032 that is not illuminated is not provided with a light emitting unit 2022.
[0047] In some embodiments, the side-emitting lighting device 200 further includes a shading member (not shown), which is disposed together with the light source assembly 202 around the light emitting member 2013. The shading member forms a non-light emitting area 2032 that is not illuminated on the light emitting member 2013, and a light source area away from the shading member forms an illuminated light emitting area 2031 on the light emitting member 2013, and a light / shadow transition area 2033 is formed in the light source area between the light emitting area 2031 and the non-light emitting area 2032. By providing the shading member, light can be prevented from leaking out of the partial area on the light emitting member 2013, so as to ensure that the partial area on the light emitting member 2013 is in a dark state, simulating the effect of real sunlight shining on the edge of a window or a skylight.
[0048] Furthermore, the side-emitting lighting device 200 also includes a light distribution component (not shown), which is arranged in the light output line of the light source assembly 202. The light emitted by the light source assembly 202 is emitted to the light output component 2013 after being acted upon by the light distribution component. The arrangement of the light distribution component can direct the light in a specific direction, ensure that the light is evenly distributed, so that the light emitted by the light source assembly 202 can be better focused and diffused, and the lighting effect is more outstanding. Whether it is a lighting scene that requires high brightness or an environment that pursues soft light, the light distribution component can help achieve an ideal lighting effect. The light distribution component is any one or a combination of a light guide plate, a lens, a reflector, and a reflective cup, and the present utility model is not limited by comparison.
[0049] The light source assembly 202 can be disposed on the top wall 2011 or on the frame 2012, or on both the top wall 2011 and the frame 2012. The arrangement shape of the multiple light source areas on the light source substrate 2021 is any one of a straight line, a curve, a ring, an array, or a combination thereof, further increasing the flexibility and customizability of the side-emitting lighting device 200.
[0050] In this embodiment, the side-emitting lighting device 200 is a linear light source, and the light source substrate 2021 is relatively narrow, so only one circle of light-emitting units 2022 is provided on the light source substrate, and the light-emitting units 2022 of four colors are arranged cyclically in sequence along the extension direction of the light source substrate, that is, the light-emitting units 2022 are arranged cyclically in the order of red, blue, white and green, and are connected end to end to form a complete circle. In other embodiments, multiple circles of light-emitting units 2022 may also be provided, and the light-emitting units 2022 of each circle are also arranged cyclically in sequence, and the utility model is not limited to this.
[0051] The surface-emitting lighting device 300 is arranged inside the side-emitting lighting device 200 and is surrounded by the side-emitting lighting device 200. The surface-emitting lighting device 300 has a main light source light-emitting surface 301, and the light-emitting member 2013 is arranged around the main light source light-emitting surface 301. Part of the light emitted by the light source assembly 202 is emitted after passing through the light-emitting member 2013, and part of the light is projected onto the main light source light-emitting surface 301 after passing through the light-emitting member 2013, so as to form a virtual image 302 on the main light source light-emitting surface 301, so as to simulate the window shadow effect formed on the window when one side of the window is illuminated by sunlight, so that the human eye sees a sense of depth and transparency.
[0052] The surface-emitting lighting device 300 can simulate effects similar to the blue sky, sunset, morning light, and blue sky and white clouds. The color of the light emitted by the side-emitting lighting device 200 matches the effect simulated by the surface-emitting lighting device 300 to enhance the simulated effect, bring a better visual experience, and enrich the lighting methods and application scenarios of the lamp 100.
[0053] In summary, the side-emitting lighting device 200 of the present invention includes a housing 201 and a light source assembly 202, wherein the light source substrate 2021 of the light source assembly 202 is divided into a plurality of light source areas, each of which includes light-emitting units 2022 of four colors, which are arranged in a circular pattern in sequence along the extension direction of the light source substrate 2021, and the number and arrangement form of the light-emitting units 2022 in two adjacent light source areas are the same, so that the light can be evenly distributed, and the problem of uneven brightness or color deviation that may occur in the light source area can be avoided, so that the overall lighting effect is more balanced and consistent. The surface-emitting lighting device 300 in the lamp 100 can simulate effects similar to the blue sky, sunset, morning light, and blue sky and white clouds, while the side-emitting lighting device 200 simulates the effect of sunlight shining on the edge of the window, so that the lighting effect of the lamp 100 is more realistic. The side-emitting lighting device 200 can use different light distribution parts to achieve different optical effects, and can also cooperate with the surface-emitting lighting device 300 to achieve partitioned light control, and the scene simulation is coordinated and consistent.
[0054] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.
Claims
1. A side-emitting lighting device, characterized in that: include: A housing (201) comprises a top wall (2011), a frame (2012) and a light emitting member (2013); the frame (2012) is connected to the top wall (2011) and extends in a direction away from the top wall (2011); the light emitting member (2013) abuts against the top wall (2011) and the frame (2012); and the light emitting member (2013) is arranged on the inner side of the frame (2012) facing the top wall (2011); and a light source installation space (2014) is formed between the top wall (2011), the frame (2012) and the light emitting member (2013); A light source assembly (202) is arranged in the light source installation space (2014), and comprises a light source substrate (2021) arranged around the light output member (2013), wherein the light source substrate (2021) is divided into a plurality of light source areas, each of the light source areas being provided with light emitting units (2022) of four colors, and the number and arrangement of the light emitting units (2022) in two adjacent light source areas being the same.
2. The side-emitting lighting device according to claim 1, characterized in that: The light-emitting units (2022) of four colors are arranged in a circular pattern in sequence along the extension direction of the light source substrate (2021), the four colors include red, blue, white and green, and the number of the light-emitting units (2022) in the light source area is 4N, where N≥1.
3. The side-lighting lighting device according to any one of claims 1 to 2, characterized in that: Each of the light-emitting units (2022) can be independently controlled, and by controlling the color and lighting status of the light-emitting unit (2022), a color transition zone and / or a light / shadow transition zone (2033) can be formed on the light output element (2013).
4. The side-emitting lighting device according to claim 3, characterized in that: The plurality of light source areas are connected end to end to surround the light emitting member (2013), and by controlling the colors and lighting states of the light emitting units (2022) in the plurality of light source areas, an illuminated light emitting area (2031), an unilluminated non-light emitting area (2032), and a light / shadow transition area (2033) between the light emitting area (2031) and the non-light emitting area (2032) are formed on the light emitting member (2013).
5. The side-emitting lighting device according to claim 3, characterized in that: A plurality of light source areas are partially arranged around the light emitting member (2013); a non-light emitting area (2032) that is not illuminated is formed on the light emitting member (2013) that is not surrounded by the light source areas; an illuminated light emitting area (2031) is formed on the light emitting member (2013) by the light source area away from the non-light emitting area (2032); and a light / shadow transition area (2033) is formed in the light source area between the light emitting area (2031) and the non-light emitting area (2032).
6. The side-emitting lighting device according to claim 3, characterized in that: The side-emitting lighting device comprises a shading member, wherein the shading member and the light source assembly (202) are arranged together around the light emitting member (2013), the shading member forms a non-light emitting area (2032) that is not illuminated on the light emitting member (2013), the light source area away from the shading member forms an illuminated light emitting area (2031) on the light emitting member (2013), and the light source area between the light emitting area (2031) and the non-light emitting area (2032) forms a light / shadow transition area (2033).
7. The side-emitting lighting device according to claim 3, characterized in that: The light source area within the light / shadow transition zone (2033) is defined as a transition light source area, and the brightness of the light-emitting unit (2022) within the transition light source area gradually decreases from the light-emitting area (2031) to the non-light-emitting area (2032).
8. The side-emitting lighting device according to claim 1, characterized in that: The light source assembly (202) is arranged on the top wall (2011) and / or the light source assembly (202) is arranged on the frame (2012); and / or, The arrangement shape of the plurality of light source areas on the light source substrate (2021) is any one of a straight line, a curve, a ring, and an array, or a combination thereof.
9. The side-emitting lighting device according to claim 1, characterized in that: The side-emitting lighting device further comprises a light distribution component, which is arranged in the light output path of the light source assembly (202); the light emitted by the light source assembly (202) is emitted toward the light output component (2013) after being acted upon by the light distribution component; the light distribution component is any one or a combination of a light guide plate, a lens, a reflector, and a reflective cup.
10. A lamp, characterized in that: The invention comprises a surface-emitting lighting device (300) and a side-emitting lighting device according to any one of claims 1 to 9, wherein the surface-emitting lighting device (300) is arranged on the inner side of the side-emitting lighting device and is surrounded by the side-emitting lighting device, the surface-emitting lighting device (300) has a main light source light emitting surface (301), and the light emitting element (2013) is arranged around the main light source light emitting surface (301); part of the light emitted by the light source assembly (202) is emitted after passing through the light emitting element (2013), and part of the light is projected onto the main light source light emitting surface (301) after passing through the light emitting element (2013), so as to form a virtual image (302) on the main light source light emitting surface (301).
Citation Information
Cited By
Side-emitting lighting device and lamp
WO2025228292A1
