Sound wave visualized projection device

Abstract

The invention belongs to the technical field of audio visualization equipment, and particularly discloses a sound wave visualization projection device. Aiming at the defects of an existing sound wave visualization product, the invention provides a method for converting an audio signal into mechanical vibration so as to enable liquid contained in a vibration disc to generate complex standing wave patterns, and the patterns are projected to the surrounding environment after being focused by a lens to create a dynamic light and shadow effect. According to the device provided by the invention, on the basis of playing the audio signal, visualization of complex details and dynamic changes of sound waves of the audio signal is realized, and visual enjoyment with artistry and scientificity can be provided.

Description

Technical Field

[0001] The invention belongs to the technical field of audio visualization equipment, and in particular relates to a projection device for visualizing sound waves. Background Art

[0002] Traditional audio equipment mainly focuses on auditory experience and cannot fully meet the needs of modern users for multi-sensory interaction. As consumers' demand for multi-sensory experience grows, the requirement to visualize sound waves becomes more prominent. However, most existing sound wave visualization technologies rely on electronic display screens or LED lights, which often lack naturalness and artistic expression. At the same time, existing sound wave visualization products have the following defects: first, they can only display vibrations within a limited frequency range; second, they only simulate sound waves through simple water surface fluctuations, which makes it difficult to accurately display the complex details and dynamic changes in music. Summary of the invention

[0003] In order to solve the problems mentioned in the above background technology, the present invention proposes a projection device for visualizing sound waves.

[0004] A projection device for visualizing sound waves, comprising a projection device and a sound box body, wherein the projection device is used for visualizing sound waves, and the projection device comprises a light source (101), a convex lens (102) and a bracket (103);

[0005] Specifically, the support member (103) is composed of a transparent tray and a support, the transparent tray is a circular ring structure, a step is provided at the center of the circular ring structure for fixing the convex lens (102), and the height of the support can be adjusted by replacing supports of different lengths; the outline of the convex lens (102) is circular.

[0006] The projection device is installed in the following manner: a convex lens (102) is fixed on a bracket (103), a light source (101) is fixed directly above the convex lens (102), and the axis of the light source (101) coincides with the axis of the convex lens (102), and the distance from the light source (101) to the convex lens (102) is determined by the focal length of the convex lens (102).

[0007] The working principle of the projection device is: after the light emitted by the light source is reflected, the reflected light is refracted by the convex lens and converges to form a real image. Furthermore, by adjusting the height of the bracket to adjust the object distance, it can be ensured that the pattern is clearly projected on planes at different heights.

[0008] The sound box body is used to generate sound waves, and comprises a sound box housing (205) and a driving device, wherein the sound box housing (205) is used to fix the driving device, and the driving device is used to convert audio signals into mechanical vibrations.

[0009] Specifically, the driving device includes a vibration plate (201), a basin frame (202), a voice coil (203), a magnet (204), an acoustic housing (205), a front pole piece (206) and a rear pole piece (207).

[0010] The material of the vibration disk (201) has high elasticity, sealing and reflection properties, and the vibration disk (201) is concave. When reflecting light, the vibration disk (201) has the properties of a concave mirror, and the reflected light can converge at a focal length.

[0011] The magnet (204) is a hollow circular structure; the cross section of the rear pole piece (207) is a rectangular parallelepiped.

[0012] The drive unit is installed as follows:

[0013] The vibration disk (201) is fixed above the basin frame (202); the magnet (204) and the rear pole piece (207) are fixed at the bottom of the basin frame (202), and the rear pole piece (207) is located in the center of the magnet (204); the front pole piece (206) is fixed above the magnet (204); the voice coil (203) is fixed at the bottom of the vibration disk (201) and is connected to the front pole piece (206) through an electric wire.

[0014] The working principle of the drive device is:

[0015] The voice coil (203) is located in the magnetic field generated by the magnet (204). The front pole piece (206) and the rear pole piece (207) are used to enhance the magnetic field generated by the magnet. When an audio signal passes through the voice coil, a changing current is generated in the voice coil, and the changing current generates a Lorentz force in the magnetic field. The Lorentz force acts on the voice coil, causing the voice coil to vibrate in the magnetic field. Since the voice coil is fixed on the vibration plate (201), this vibration is also transmitted to the vibration plate (201), causing it to vibrate accordingly.

[0016] The assembly method of the projection device and the sound box body is as follows:

[0017] The projection device and the sound box body are moved so that the center point of the convex lens (102) in the projection device and the center point of the vibration plate (201) in the sound box body are on the same straight line.

[0018] The height of the support member (103) in the projection device is adjusted so that the height from the center point of the convex lens (102) in the projection device to the top point of the vibration plate (201) in the sound box body satisfies the following formula:

[0019]

[0020] In the formula, H is the distance from the vertex of the vibration disk (201) to the projection plane, f2 is the focal length of the convex lens (102), p is the liquid level height of the vibration disk (201), and f1 is the focal length of the concave surface of the vibration disk (201).

[0021] The working principle of the projection device and the speaker body is:

[0022] The driving device in the speaker body converts the audio signal into mechanical vibration, and the mechanical vibration causes the liquid contained in the vibration plate (201) to generate a standing wave pattern. Furthermore, the light source (101) in the projection device emits light, which is reflected by the vibration plate (201). The reflected light passes through the liquid contained in the vibration plate (201) and is refracted by the convex lens (102) and converges to form a real image, thereby projecting the standing wave pattern generated by the liquid onto other planes.

[0023] In view of the defects of existing sound wave visualization products, the present invention proposes to convert audio signals into mechanical vibrations, thereby causing the liquid contained in the vibration plate to produce complex standing wave patterns, and project these patterns into the surrounding environment after focusing through a lens, creating dynamic light and shadow effects. The device provided by the present invention realizes the visualization of the complex details and dynamic changes of the audio signal sound waves on the basis of playing audio signals, and can provide a visual enjoyment that is both artistic and scientific.

[0024] The present invention proposes a projection device for visualizing sound waves, which has the following beneficial effects compared with the prior art:

[0025] The device provided by the present invention realizes the visualization of complex details and dynamic changes of the sound waves of the audio signal on the basis of playing the audio signal, and can provide a visual enjoyment that is both artistic and scientific. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the device of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose and features of the present invention more obvious and easy to understand, the present technical solution is described in detail below through embodiments and in conjunction with the accompanying drawings.

[0028] like Figure 1 As shown, a projection device for visualizing sound waves comprises a projection device and a sound box body, wherein the projection device is used for visualizing sound waves, and the projection device comprises a light source (101), a convex lens (102) and a bracket (103);

[0029] Specifically, the support member (103) is composed of a transparent tray and a support, the transparent tray is a circular ring structure, a step is provided at the center of the circular ring structure for fixing the convex lens (102), and the height of the support can be adjusted by replacing supports of different lengths.

[0030] The outline of the convex lens (102) is circular.

[0031] In the specific implementation process, the user can adjust the object distance by adjusting the height of the bracket, so as to adapt to different usage scenarios.

[0032] The projection device is installed in the following manner: a convex lens (102) is fixed on a bracket (103), a light source (101) is fixed directly above the convex lens (102), and the axis of the light source (101) coincides with the axis of the convex lens (102), and the distance from the light source (101) to the convex lens (102) is determined by the focal length of the convex lens (102).

[0033] The working principle of the projection device is: after the light emitted by the light source is reflected, the reflected light is refracted by the convex lens and converges to form a real image. Furthermore, by adjusting the height of the bracket to adjust the object distance, it can be ensured that the pattern is clearly projected on planes at different heights.

[0034] Optionally, the position and distance between the light source (101) and the convex lens (102) can be fixed by adding hanging ropes of different lengths on the top; or by adding transparent blocks of different sizes on the bottom to fix the position and distance between the light source (101) and the convex lens (102).

[0035] In a specific implementation, the position and distance from the light source (101) to the convex lens (102) can be determined through experiments and adjustments, and the adjustment requirement is to ensure that the projector can produce a clear image.

[0036] The sound box body is used to generate sound waves, and comprises a sound box housing (205) and a driving device, wherein the sound box housing (205) is used to fix the driving device, and the driving device is used to convert audio signals into mechanical vibrations.

[0037] Specifically, the driving device includes a vibration plate (201), a basin frame (202), a voice coil (203), a magnet (204), an acoustic housing (205), a front pole piece (206) and a rear pole piece (207).

[0038] The material of the vibration disk (201) has high elasticity, sealing and reflective properties, and the vibration disk (201) is concave. When reflecting light, the vibration disk (201) has the properties of a concave mirror, and the reflected light can converge at a focus.

[0039] The magnet (204) is a hollow circular structure; the cross section of the rear pole piece (207) is a rectangular parallelepiped.

[0040] Optionally, the vibrating plate (201) may obtain reflective properties by means of a reflective coating.

[0041] Optionally, the liquid in the vibrating plate can be configured according to different usage scenarios.

[0042] Preferably, the speaker housing (205) is cylindrical, and the speaker housing (205) can fix the driving device to ensure the stability of the speaker body.

[0043] The drive unit is installed as follows:

[0044] The vibration disk (201) is fixed above the basin frame (202); the magnet (204) and the rear pole piece (207) are fixed at the bottom of the basin frame (202), and the rear pole piece (207) is located in the center of the magnet (204); the front pole piece (206) is fixed above the magnet (204); the voice coil (203) is fixed at the bottom of the vibration disk (201) and is connected to the front pole piece (206) through an electric wire.

[0045] The working principle of the drive device is:

[0046] The voice coil (203) is located in the magnetic field generated by the magnet (204). The front pole piece (206) and the rear pole piece (207) are used to enhance the magnetic field generated by the magnet. When an audio signal passes through the voice coil, a changing current is generated in the voice coil, and the changing current generates a Lorentz force in the magnetic field. The Lorentz force acts on the voice coil, causing the voice coil to vibrate in the magnetic field. Since the voice coil is fixed on the vibration plate (201), this vibration is also transmitted to the vibration plate (201), causing it to vibrate accordingly.

[0047] The assembly method of the projection device and the sound box body is as follows:

[0048] The projection device and the sound box body are moved so that the center point of the convex lens (102) in the projection device and the center point of the vibration plate (201) in the sound box body are on the same straight line.

[0049] The height of the support member (103) in the projection device is adjusted so that the height from the center point of the convex lens (102) in the projection device to the top point of the vibration plate (201) in the sound box body satisfies the following formula:

[0050]

[0051] In the formula, H is the distance from the vertex of the vibration disk (201) to the projection plane, f2 is the focal length of the convex lens (102), p is the liquid level height of the vibration disk (201), and f1 is the focus of the concave surface of the vibration disk (201).

[0052] The working principle of the projection device and the speaker body is:

[0053] The driving device in the speaker body converts the audio signal into mechanical vibration, and the mechanical vibration causes the liquid contained in the vibration plate (201) to generate a standing wave pattern. Furthermore, the light source (101) in the projection device emits light, which is reflected by the vibration plate (201). The reflected light passes through the liquid contained in the vibration plate (201) and is refracted by the convex lens (102) and converges to form a real image, thereby projecting the standing wave pattern generated by the liquid onto other planes.

[0054] So far, according to the method disclosed in the present invention, the working process of the present invention has been implemented once.

[0055] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

[0056] It should be noted that the serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments. And the terms "including", "comprising" or any other variants thereof in this article are intended to cover non-exclusive inclusion, so that a process, device, article or method including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, device, article or method. In the absence of further restrictions, an element defined by the sentence "including a ..." does not exclude the presence of other identical elements in the process, device, article or method including the element.

Claims

1. A projection device for visualizing sound waves, characterized in that: The invention comprises a projection device and a sound box body, wherein the projection device is used for visualizing sound waves and comprises a light source (101), a convex lens (102) and a bracket (103); the sound box body is used for generating sound waves and comprises a sound box housing (205) and a driving device.

2. The projection device for visualizing sound waves according to claim 1, characterized in that: The support member (103) in the projection device is composed of a transparent tray and a support, wherein the transparent tray is a circular ring structure, and a step is provided at the center of the circular ring structure for fixing the convex lens (102); the height of the support can be adjusted by replacing supports of different lengths.

3. The projection device for visualizing sound waves according to claim 1, characterized in that: The projection device is installed in the following manner: the convex lens (102) is fixed on the bracket (103), the light source (101) is fixed directly above the convex lens (102), and the axis of the light source (101) coincides with the axis of the convex lens (102), and the distance from the light source (101) to the convex lens (102) is determined by the focal length of the convex lens (102).

4. The projection device for visualizing sound waves according to claim 1, characterized in that: The housing (205) in the speaker body is used to fix the driving device; the driving device in the speaker body is used to convert the audio signal into mechanical vibration, and specifically, the driving device includes a vibration plate (201), a basin frame (202), a voice coil (203), a magnet (204), a sound housing (205), a front pole piece (206) and a rear pole piece (207).

5. The projection device for visualizing sound waves according to claim 4, characterized in that: The material of the vibration disk (201) has high elasticity, sealing and reflection properties, and the vibration disk (201) is concave, and when reflecting light, the vibration disk (201) has the properties of a concave mirror.

6. The projection device for visualizing sound waves according to claim 1, characterized in that: The driving device is installed in the following manner: a vibration disk (201) is fixed above a basin frame (202); a magnet (204) and a rear pole piece (207) are fixed at the bottom of the basin frame (202); and the rear pole piece (207) is located in the center of the magnet (204); a front pole piece (206) is fixed above the magnet (204); and a voice coil (203) is fixed at the bottom of the vibration disk (201) and connected to the front pole piece (206) via an electric wire.

7. The projection device for visualizing sound waves according to claim 1, characterized in that: The projection device and the sound box body are assembled in the following manner: Moving the projection device and the sound box body so that the center point of the convex lens (102) in the projection device and the center point of the vibration plate (201) in the sound box body are on the same straight line; The height of the support member (103) in the projection device is adjusted so that the height from the center point of the convex lens (102) in the projection device to the top point of the vibration plate (201) in the sound box body satisfies the following formula: In the formula, H is the distance from the vertex of the vibration disk (201) to the projection plane, f2 is the focal length of the convex lens (102), p is the liquid level height of the vibration disk (201), and f1 is the focal length of the concave surface of the vibration disk (201).

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