Wave focusing device and wave emitting device including the same

Abstract

The technology disclosed in this specification relates to a wave focusing device that focuses waves through phase superposition by including a plurality of filters, comprising: a first filter formed on a substrate; a second filter formed on the substrate and superimposed with the first filter in a first region; and a third filter formed on the substrate and superimposed with the second filter in a second region, wherein the size of the first region is the same as the size of the second region, and the first part of the second filter included in the first region is inverted with respect to one axis with respect to the second part of the second filter included in the second region, and the wave passing through the wave focusing device can be focused at a position corresponding to the center of the first, second, and third filters.

Description

Technology Field

[0001] The technology disclosed in this specification relates to a wave focusing device, and more specifically, to a technology that utilizes a multi-focal design method to increase the focusing speed of waves in a single region and adjusts the focal length by overlapping a plurality of filters. Background Technology

[0002] Patent Document 1: Korean Published Patent Application No. 10-2013-0085249 (July 29, 2013)

[0003] Wave focusing technology using phase superposition is a technique that increases focusing speed by aligning the phase of diffracting waves with the focal point. This technology, also known as the lens effect, can increase wave focusing speed in specific areas, but it may present the problem of difficulty in controlling focusing speed in other areas.

[0004] While Fresnel zone plate filters can maximize lens effects, the filter's area is overwhelmingly larger than the focal area; therefore, even if the lens is narrowed, there are limitations to increasing focusing speed across the entire surface area. Consequently, a technology is required to increase focusing speed across the overall area near the surface and minimize interference between focal points. The problem to be solved

[0005] The present invention aims to solve the aforementioned problem and other related problems.

[0006] One exemplary objective of this specification is to provide a multifocal design method capable of increasing the focusing velocity of an overall area near a surface.

[0007] According to the present invention, by cutting and arranging the arc in pieces, the overall wave focusing velocity near the surface can be increased.

[0008] In addition, according to the present invention, by overlapping a plurality of filters, the focusing speed of waves can be increased at a position corresponding to the center of the filter.

[0009] In addition, according to the present invention, the focal length can be adjusted by overlapping a plurality of filters, and the adjusted focal length can be supplemented through a separate spacer.

[0010] The technical problems to be solved by the wave focusing device and wave emitting device according to the technical concept of the technology disclosed in this specification are not limited to the problems mentioned above, and other unmentioned problems will be clearly understood by a person skilled in the art from the description below. means of solving the problem

[0011] A wave focusing device for focusing waves through phase superposition, comprising a plurality of filters according to an embodiment of the technology disclosed in this specification, includes: a first filter formed on a substrate; a second filter formed on the substrate and superimposed with the first filter in a first region; and a third filter formed on the substrate and superimposed with the second filter in a second region, wherein the size of the first region is the same as the size of the second region, and the first part of the second filter included in the first region is inverted with respect to an axis with respect to the second part of the second filter included in the second region, and the wave passing through the wave focusing device can be focused at a position corresponding to the center of the first, second, and third filters.

[0012] In the above wave focusing device, the first, second, and third filters may all be of the same shape.

[0013] In the above wave focusing device, the wave passing through the wave focusing device has a plurality of focal points, and the number of focal points may correspond to the number of the plurality of filters.

[0014] In the above wave focusing device, the first, second, and third filters may be Fresnel zone plate filters.

[0015] In the above wave focusing device, the third part of the first filter included in the first region may have the same shape as the second part.

[0016] A wave emitting device having a plurality of focal points according to one embodiment of the technology disclosed in this specification comprises: a wave generator that generates a wave; a first spacer that stabilizes a wave emitted from the wave generator; a wave focusing lens that focuses a wave emitted from the first spacer; and a second spacer having a first length that receives a wave emitted from the wave focusing lens, wherein the wave focusing lens comprises a plurality of filters whose regions overlap on a substrate, and the first length may be shorter than the focal length of the wave.

[0017] In the above wave emission device, the wave focusing lens includes a first filter, a second filter that overlaps with the first filter in a first region, and a third filter that overlaps with the second filter in a second region, and the size of the first region may be the same as the size of the second region.

[0018] In the above wave emission device, the plurality of focal points may correspond to the centers of the first, second, and third filters.

[0019] In the above wave emitting device, the wave emitting device emits a wave on one surface, and

[0020] The first length above can be determined based on the distance between the wave focusing lens and the one surface and the focal length of the wave.

[0021] In the above wave emission device, the plurality of filters included in the wave focusing lens may all be of the same shape. Effects of the invention

[0022] A wave focusing device according to one embodiment of the technology disclosed in this specification has the following effects.

[0023] By overlapping multiple filters, the focusing speed of the overall area near the surface can be increased.

[0024] In addition, the focusing speed of waves can be increased at a position corresponding to the center of each of the multiple filters.

[0025] In addition, by using multiple filters, the focal length can be shortened compared to when using a single filter.

[0026] However, the effects according to one embodiment of the technology disclosed in this specification are not limited to those mentioned above, and other effects not mentioned will be clearly understood by a person skilled in the art from the description below. Brief explanation of the drawing

[0027] A brief description of each drawing is provided to help to better understand the drawings cited in this specification. FIG. 1 shows a wave emitting device according to one embodiment. Figure 2 shows the configuration of a wave emitting device according to one embodiment. FIG. 3 shows a wave focusing device according to one embodiment. Figures 4 and 5 show the shape of a wave focused by a wave focusing device. Specific details for implementing the invention

[0028] The technology disclosed in this specification is subject to various modifications and may have various embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the technology disclosed in this specification to specific embodiments, and it should be understood that the technology disclosed in this specification includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the technology disclosed in this specification.

[0029] In describing the technology disclosed in this specification, if it is determined that a detailed description of related prior art could unnecessarily obscure the essence of the technology disclosed in this specification, such detailed description is omitted. Additionally, numbers used in the description of this specification (e.g., 1st, 2nd, etc.) are merely identification symbols to distinguish one component from another.

[0030] In addition, when a component is described in this specification as being "connected" or "combined" with another component, it should be understood that the component may be directly connected or combined with the other component, but unless otherwise specifically stated, it may also be connected or combined through another component in between.

[0031] In addition, components expressed as '~part' in this specification may consist of two or more components combined into a single component, or a single component may be divided into two or more components according to more detailed functions. Furthermore, each component described below may additionally perform some or all of the functions performed by other components in addition to the primary function it is responsible for, and it goes without saying that some of the primary functions performed by each component may be exclusively performed by other components.

[0032] Expressions such as “first,” “second,” “first,” or “second” used in various embodiments may modify various components regardless of order and / or importance and do not limit said components. For example, without departing from the scope of the technology disclosed herein, the first component may be named the second component, and similarly, the second component may be renamed the first component.

[0033] Hereinafter, a wave emitting device and a wave focusing device according to a preferred embodiment will be described in detail.

[0035] FIG. 1 shows a wave emitting device according to one embodiment.

[0036] Referring to FIG. 1, a wave emitting device (1000) according to one embodiment includes a main body (1100) and an irradiation unit (1200).

[0037] The main body (1100) may include a power supply unit capable of controlling the on / off of wave emission, a control unit capable of controlling the intensity of the wave, and a control unit capable of controlling all operations of the main body (1100).

[0038] The power supply unit included in the main body (1100) can control the power of the wave generator through the control unit to control the on / off of wave emission. The adjustment unit included in the main body (1100) can control the intensity of the wave by adjusting the voltage of the wave generator through the control unit.

[0039] The wave emitting device (1000) can irradiate ultrasound onto the skin. The wave emitting device (1000) must emit ultrasound such that the focal length of the emitted ultrasound is located between the epidermal layer and the dermal layer of the skin in order to produce a prominent effect on the treatment and / or cosmetic of the skin.

[0040] Conventional wave emitting devices had a problem in that the focal length of the emitted ultrasound was located in the subcutaneous tissue below the dermis, causing high-energy ultrasound to be irradiated into the subcutaneous tissue, which resulted in skin diseases such as skin cancer.

[0041] However, the wave emitting device (1000) of the present invention can emit ultrasound by bringing the focal length of the wave forward compared to the conventional method through the wave focusing lens of FIG. 3, so that the focal length is located between the epidermal layer and the dermal layer. Accordingly, the purpose of treating and / or cosmetic treatment of the skin can be achieved, and the risk of skin disease can be significantly reduced.

[0042] In addition, when the wave emitting device (1000) of the present invention is in contact with a microneedle patch attached to the skin and ultrasound is generated, the temperature between the epidermal layer and the dermal layer of the skin increases and a microcavity is formed. As the temperature within the skin increases, the dissolution of the soluble microneedles accelerates, thereby increasing the drug release rate. The liquid released in this way is rapidly absorbed by the microcavity formed within the skin. That is, the wave emitting device (1000) of the present invention can enhance the drug penetration effect into the skin.

[0043] The irradiation part (1200) of the wave emitting device (1000) can adjust the focal length with a wave focusing lens so that the focus of the emitted wave is located between the epidermal layer and the dermal layer of the skin.

[0044] For example, if the distance from the wave focusing lens to the focal point of the wave is 4 mm and the epidermal layer of the skin is 1 mm, the irradiation part (1200) has a length of 3 mm, so that the focal length can be compensated.

[0045] The irradiation part (1200) must be a material that allows waves to be transmitted well and does not irritate the skin. For example, the irradiation part (1200) may be made of transparent rubber or gel, but is not limited thereto.

[0047] Figure 2 shows the configuration of a wave emitting device according to one embodiment.

[0048] Referring to FIG. 2, according to one embodiment, a wave emitting device (1000) may include a wave generator (100), a first spacer (200), a wave focusing lens (300), and a second spacer (400).

[0049] The wave generator (100) can emit waves by applying voltage through the control unit of the wave emission device (1000). For example, the wave generator (100) can generate ultrasonic waves of 20,000 Hz or higher, and specifically, can generate ultrasonic waves of 1.7 MHz or 1 MHz. In addition, the intensity of the waves emitted by the wave generator (100) can be controlled by the control unit of the wave emission device (1000).

[0050] The first spacer (200) can receive waves emitted from the wave generator (100). The first spacer (200) can stabilize the received waves. The first spacer (200) has a relatively longer length than the second spacer (400), so that the characteristics of the waves can be stabilized as the waves emitted from the wave generator (100) pass through the first spacer (200).

[0051] At this time, the first spacer (200) may be made of a material that allows waves to be transmitted well, for example, transparent rubber or gel, but is not limited thereto.

[0052] The wave focusing lens (300) can receive waves emitted from the first spacer (200). The wave focusing lens (300) can advance the focal length of the received waves. For example, the focal length of the waves emitted from the first spacer (200) is 4 mm, but the focal length of the waves passing through the wave focusing lens (300) can be advanced to 1 mm, but is not limited to that value, and the focal length advanced may vary depending on the shape of the lens.

[0053] The shape and configuration of the wave focusing lens (300) are explained in detail in FIG. 3.

[0054] The second spacer (400) can receive waves emitted from the wave focusing lens (300). The second spacer (400) can compensate for the focal length pulled by the wave focusing lens (300) so that the focus of the received waves is located between the epidermal layer and the dermal layer of the skin. Accordingly, the length of the second spacer (400) can be determined based on the distance between the wave focusing lens (300) and the skin (epidermal layer and dermal layer of the skin) and the focal length of the waves.

[0055] The second spacer (400) may be a configuration corresponding to the irradiation unit (1200) of FIG. 1. Like the first spacer (200) and / or the irradiation unit (1200), the second spacer (400) must also be a material that allows waves to be transmitted well and does not irritate the skin. For example, the second spacer (400) may be made of transparent rubber or gel, but is not limited thereto.

[0057] FIG. 3 shows a wave focusing device according to one embodiment.

[0058] Referring to FIG. 3, the wave focusing device of FIG. 3 may have a configuration corresponding to the wave focusing lens (300) of FIG. 2. The wave focusing device may also be named a wave focusing lens or an ultrasonic lens.

[0059] The wave focusing lens (300) may include a plurality of filters processed on a substrate (e.g., stainless steel plate). At this time, the wave focusing lens (300) may include a Fresnel zone plate filter, but is not limited thereto, and may include various filters that focus waves. The shape of the filter included in the wave focusing lens (300) may be a circular filter as shown in FIG. 3, but is not limited thereto, and may be various shapes such as elliptical or polygonal.

[0060] The yellow portion of the wave focusing lens (300) is formed by perforating the substrate, and can be in the shape of a hole. Waves can pass through the perforated portion of the wave focusing lens (300) and cause a phase superposition phenomenon. Waves can pass through the perforated portions of a plurality of filters included in the wave focusing lens (300) and form multiple focal points through the phase superposition phenomenon.

[0061] In addition, compared to the focal length of a wave focusing lens having only one filter, the focal length of the wave focusing lens (300) of the present invention, in which multiple filters are superimposed, is shorter, so that the effect of shortening the focal length can occur.

[0062] According to one embodiment, the wave focusing lens (300) may include a first filter (310), a second filter (320), and a third filter (330) formed on a substrate. A plurality of filters included in the wave focusing lens (300) may each overlap with other filters. Additionally, a plurality of filters included in the wave focusing lens (300) may all have the same shape.

[0063] The first filter (310) may overlap with the second filter (320) in the first region (340). Additionally, the second filter (320) may overlap with the third filter (330) in the second region (350). In this case, the size of the first region (340) and the size of the second region (350) may be the same, and the shape may also be the same.

[0064] The portion of the first filter (310) included in the first area (340) and the portion of the second filter (320) included in the second area (350) may have the same shape. Additionally, the portion of the second filter (320) included in the first area (340) may have the same shape as the portion of the third filter (330) included in the second area (350).

[0065] Alternatively, the portion of the first filter (310) and the second filter (320) included in the first area (340) and the portion of the second filter (320) and the third filter (330) included in the second area (350) may all be of the same shape.

[0066] Specifically, the portion of the second filter (320) included in the first region (340) may be in a shape inverted with respect to the portion of the second filter (320) included in the second region (350) with respect to the axis (360). In this case, the axis (360) may be an axis passing through the center of the second filter (320).

[0067] According to one embodiment, a wave passing through a wave focusing lens (300) may have a plurality of focal points, and the number of focal points may be equal to the number of filters included in the wave focusing lens (300).

[0068] Additionally, the focal points of the waves passing through the wave focusing lens (300) may be located at positions corresponding to the centers of the filters included in the wave focusing lens (300). For example, when the wave emitting device (1000) is viewed from the front in the direction in which the waves are emitted, the positions of the focal points and the centers of the filters may be the same, or they may all be spaced apart at equal intervals.

[0069] The filter included in the wave focusing lens (300) can be superimposed with two or more filters. For example, the second filter (320) of FIG. 3 can be superimposed with six surrounding filters. The number of superimposed filters may vary depending on the shape and form of the filters.

[0071] Figures 4 and 5 show the shape of a wave focused by a wave focusing device.

[0072] Referring to the graph in Fig. 4, it can be seen that the waves passing through the wave focusing lens (300) have focus at various locations.

[0073] Specifically, the wave passing through the wave focusing lens (300) has a focus at positions approximately -7, 0, and 7 on the x-axis (r axis) of the graph. Additionally, the wave passing through the wave focusing lens (300) has a focus at positions approximately 5 and 20 on the y-axis (z axis) of the graph. Although it may vary depending on the shape of the wave focusing lens (300), the distance between the focal points in FIG. 4 may all be the same.

[0074] As can be seen in Fig. 4, the wave emitting device of the present invention is designed with a multi-focal design method to increase the focusing speed of waves at a specific distance, and has a filter with a pattern that minimizes interference between focal points, so that it can emit multi-focal surface focused waves.

[0075] Figure 5 is a graph showing the intensity of the wave according to the direction of wave propagation. Referring to the graph in Figure 5, it can be seen that the wave passing through the wave focusing lens (300) is focused at 3.8 mm due to the phase superposition phenomenon and has an intensity of 0.761 V.

[0077] The wave emitting device and its control described above may be implemented as hardware components, software components, and / or a combination of hardware and software components. For example, the device and components described in the embodiments may be implemented using one or more general-purpose or special-purpose computers, such as a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA), a programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing unit may execute an operating system (OS) and one or more software applications executed on said operating system. Additionally, the processing unit may access, store, manipulate, process, and generate data in response to the execution of the software. For ease of understanding, the processing unit may be described as being used as a single unit, but those skilled in the art will understand that the processing unit may include multiple processing elements and / or multiple types of processing elements. For example, the processing unit may include multiple processors or one processor and one controller. In addition, other processing configurations, such as parallel processors, are also possible.

[0078] Software may include computer programs, code, instructions, or a combination of one or more of these, and may configure a processing unit to operate as desired or instruct the processing unit independently or in combination. Software and / or data may be permanently or temporarily embodied in any type of machine, component, physical device, virtual device, computer storage medium, or device so as to be interpreted by the processing unit or to provide instructions or data to the processing unit. Software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored on one or more computer-readable recording media.

[0079] The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc., either alone or in combination. The program instructions recorded on the medium may be those specifically designed and configured for the embodiment, or they may be those known and available to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes; optical recording media such as CD-ROMs and DVDs; magneto-optical media such as floptical disks; and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, and flash memory. Examples of program instructions include machine code, such as that generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc. The hardware devices described above may be configured to operate as one or more software modules to perform the operation of the embodiment, and vice versa.

[0080] Although the embodiments have been described above with reference to limited examples and drawings, those skilled in the art can make various modifications and variations from the description above. For example, suitable results can be achieved even if the described techniques are performed in a different order than described, and / or the components of the described system, structure, device, circuit, etc. are combined or assembled in a form different from described, or replaced or substituted by other components or equivalents.

[0081] Therefore, other implementations, other embodiments, and equivalents to the claims also fall within the scope of the claims set forth below. Explanation of the symbols

[0082] 300: Wave focusing lens 310: First filter 320 : 2nd filter 330 : Third filter 340: First Zone 350 : Second Zone 360 : Single-axis

Claims

Claim 1 delete Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 delete Claim 8 delete Claim 9 delete Claim 10 delete Claim 11 A wave emitting device comprising: a wave generator configured to generate a wave; a first spacer configured to receive a wave emitted from the wave generator; a wave focusing lens configured to reduce the focal length of a wave emitted from the first spacer; and a second spacer configured to receive a wave emitted from the wave focusing lens and having a first length, wherein the first length is shorter than the focal length of the wave. Claim 12 In claim 11, the wave emitting device emits a wave onto one surface, and the first length is determined based on the distance between the wave focusing lens and the one surface and the focal length of the wave. Claim 13 delete Claim 14 delete

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