Radar detectable golf ball
By laying multiple designed reflection patterns on the golf ball, forming a radar detectable pattern layer, the inconvenience problem of existing golf balls that require artificial attachment and replacement of radar reflective patches is solved, and the effect of accurate detection and tracking by the radar system in environments such as indoor driving ranges is achieved.
Patent Information
- Application Number
- CN202421433199.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-21
AI Technical Summary
Existing golf balls need to be attached with additional radar reflection patches during use, and the patches need to be accurately positioned and replaced when worn, which may be inconvenient.
A radar-detectable golf ball is designed, which arranges multiple shapes and sizes of designed reflective patterns inside or outside the ball shell to form a radar detectable pattern layer, and tracks the movement process and hitting data of the golf ball through the radar system.
It is detected and tracked by the radar system in a limited distance environment, providing accurate and reliable batting performance data, and avoiding the inconvenience of artificial stickers and replacement of patches.
Smart Images

Figure CN222918060U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a golf ball, in particular to a golf ball that can be detected by radar, which is suitable for being detected and tracked by a radar system in an environment with a limited distance (such as an indoor driving range) to provide accurate and reliable hitting performance data for golfers. Background Art
[0002] The sport of golf is not restricted by gender and age. With the improvement of living standards and the emphasis on outdoor leisure life, more and more people are exposed to this sport. In order to improve their skills, many enthusiasts often go to the golf driving range to practice swinging. Although there is a coach guiding them during the practice, the effect is not as expected. Therefore, some manufacturers have developed a radar tracking system that can be used to obtain the launch conditions and flight data of the ball to help golfers improve their hitting performance.
[0003] In order to enable a golf ball to be captured by a radar system, the currently common method is to directly attach a radar reflection patch to the outer surface of the ball. However, the reflection patch has many inconveniences in use. For example, it requires additional manual attachment operations, needs to be accurately positioned on the ball, and needs to be replaced when worn. Therefore, how to overcome the above defects through the improvement of the structural design has become one of the important issues to be solved in this industry. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a golf ball that can be detected by radar in view of the deficiencies of the prior art, which embodies the concept of the utility model: arranging a plurality of reflection patterns with designed shapes and sizes inside or outside the ball shell, so that the complete movement process of the golf ball and related hitting data can be tracked by a radar system.
[0005] To solve the above technical problems, one of the technical solutions adopted by the utility model is to provide a golf ball that can be detected by radar, which includes a sphere and a radar-detectable pattern layer. The sphere has an intermediate toroidal surface surrounding the center of the sphere, and the radar-detectable pattern layer is formed on the intermediate toroidal surface. Wherein, the radar-detectable pattern layer includes a plurality of reflection patterns evenly distributed at a predetermined arc length, and the predetermined arc length ranges from 5 mm to 70 mm.
[0006] Furthermore, in the embodiment of the utility model, the number of the reflection patterns is more than three.
[0007] Furthermore, in the embodiment of the utility model, the number of the reflection patterns is four and they are respectively located at the 0-degree position, 90-degree position, 180-degree position, and 270-degree position of the intermediate toroidal surface.
[0008] Further, in an embodiment of the present utility model, the sphere defines a circular line with the center of the sphere as the center of the circle, and each of the reflection patterns includes two reflection pattern units symmetrically arranged with respect to the circular line.
[0009] Further, in an embodiment of the present utility model, each of the reflection pattern units includes two sub-pattern units symmetrically arranged with respect to a symmetry axis, and the symmetry axis is perpendicular to the circular line. Additionally, each of the sub-pattern units includes a first stripe and a second stripe connected to each other. The first stripe is parallel to the circular line, the second stripe is located between the first stripe and the circular line, and forms an angle with the first stripe, and the angle is between 1 degree and 120 degrees. Additionally, the second stripe is closer to the symmetry axis than the first stripe.
[0010] Further, in an embodiment of the present utility model, the sphere defines a circular line with the center of the sphere as the center of the circle, and each of the reflection patterns is an S-shaped pattern and is located corresponding to the circular line.
[0011] Further, in an embodiment of the present utility model, the height and width of each of the reflection patterns are in the range of 5 mm to 70 mm.
[0012] Further, in an embodiment of the present utility model, the sphere includes a sphere center and a spherical shell covering outside the sphere center, and the radar-detectable pattern layer is formed between the sphere center and the spherical shell, or is formed on the spherical shell.
[0013] Further, in an embodiment of the present utility model, the sphere includes an intermediate layer formed between the sphere center and the spherical shell, and the radar-detectable pattern layer is formed on the intermediate layer and is covered by the spherical shell.
[0014] Further, in an embodiment of the present utility model, the sphere includes a first adhesive layer formed between the intermediate layer and the spherical shell, and the radar-detectable pattern layer is covered by the first adhesive layer.
[0015] Further, in an embodiment of the present utility model, the sphere includes a second adhesive layer formed between the intermediate layer and the first adhesive layer, and the radar-detectable pattern layer is formed on the second adhesive layer and is covered by the first adhesive layer.
[0016] Furthermore, in an embodiment of the present utility model, the sphere includes an intermediate layer disposed around the center of the sphere, an adhesive layer formed between the intermediate layer and the spherical shell, and a topcoat layer covering the outside of the spherical shell. The radar-detectable pattern layer is formed on the spherical shell and covered by the topcoat layer. Furthermore, in an embodiment of the present utility model, the sphere includes at least one primer layer formed between the spherical shell and the topcoat layer, and the radar-detectable pattern layer is formed on the primer layer.
[0017] Furthermore, in an embodiment of the present utility model, the radar-detectable pattern layer is formed by an ink composition, and the ink composition includes reflective particles with a particle size between 20 μm and 300 μm.
[0018] Furthermore, in an embodiment of the present utility model, the golf ball detectable by radar provided by the present utility model can be detected and tracked by a radar system in an environment with a limited distance (such as an indoor practice range) by virtue of "the radar-detectable pattern layer is formed on the intermediate toroidal surface of the sphere" and "the radar-detectable pattern layer includes a plurality of reflective patterns evenly distributed at a predetermined arc length (in the range of 5 mm to 70 mm)", so as to provide accurate and reliable hitting performance data for golfers.
[0019] To further understand the features and technical content of the present utility model, please refer to the following detailed description and drawings of the present utility model. However, the provided drawings are only for reference and illustration, and are not used to limit the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 One perspective view of the radar-detectable golf ball according to the first embodiment of the present utility model.
[0021] Figure 2 Another perspective view of the radar-detectable golf ball according to the first embodiment of the present utility model.
[0022] Figure 3 Another perspective view of the radar-detectable golf ball according to the first embodiment of the present utility model.
[0023] Figure 4 Distribution diagram of a plurality of reflective patterns of the radar-detectable pattern layer on the intermediate toroidal surface of the sphere according to the first embodiment of the present utility model.
[0024] Figure 5 One perspective view of the radar-detectable golf ball according to the second embodiment of the present utility model.
[0025] Figure 6Another perspective view of the radar-detectable golf ball according to the second embodiment of the present utility model.
[0026] Figure 7 Another perspective view of the radar-detectable golf ball according to the second embodiment of the present utility model.
[0027] Figure 8 Schematic diagram showing the distribution of multiple reflection patterns of the radar-detectable pattern layer according to the second embodiment of the present utility model on the middle toroidal surface of the sphere.
[0028] Figure 9 One perspective view of the radar-detectable golf ball according to the third embodiment of the present utility model.
[0029] Figure 10 Another perspective view of the radar-detectable golf ball according to the third embodiment of the present utility model.
[0030] Figure 11 Another perspective view of the radar-detectable golf ball according to the third embodiment of the present utility model.
[0031] Figure 12 Schematic diagram showing the distribution of multiple reflection patterns of the radar-detectable pattern layer according to the third embodiment of the present utility model on the middle toroidal surface of the sphere.
[0032] Figure 13 and Figure 14 Schematic diagram of the operation of forming the radar-detectable pattern layer according to the first embodiment of the present utility model on the sphere.
[0033] Figure 15 One schematic diagram of Example 1 of the sphere of the radar-detectable golf ball according to the present utility model.
[0034] Figure 16 Another schematic diagram of Example 1 of the sphere of the radar-detectable golf ball according to the present utility model.
[0035] Figure 17 Schematic diagram of Example 2 of the sphere of the radar-detectable golf ball according to the present utility model.
[0036] Figure 18 Schematic diagram of Example 3 of the sphere of the radar-detectable golf ball according to the present utility model.
[0037] Figure 19 Schematic diagram of Example 4 of the sphere of the radar-detectable golf ball according to the present utility model.
[0038] Figure 20 Schematic diagram of Example 5 of the sphere of the radar-detectable golf ball according to the present utility model. Detailed implementation manners
[0039] The following is to illustrate the implementation manner of the "radar-detectable golf ball" disclosed by the present utility model through specific specific examples. Those skilled in the art can understand the advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present utility model. Additionally, the drawings of the present utility model are only for simple schematic illustration and are not drawn according to actual dimensions. This is stated in advance. The following implementation manners will further detail the related technical content of the present utility model, but the disclosed content is not intended to limit the protection scope of the present utility model.
[0040] It should be understood that although terms such as "first", "second", "third", etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are mainly used to distinguish one component from another. Additionally, the term "or" used herein should, depending on the actual situation, possibly include any one or a combination of more of the associated listed items.
[0041] Without otherwise defined, the terms used herein have the same meaning as the ordinary understanding of those skilled in the art. The materials involved in each embodiment are commercially available or materials prepared according to the prior art if not otherwise specified. The methods or operations involved in each embodiment are conventional methods or operations in the art if not otherwise specified.
[0042] Refer to Figures 1 to 3 、 Figures 5 to 7 and Figures 9 to 11 As shown, an embodiment of the present utility model provides a radar-detectable golf ball Z, which includes a sphere 1 and a radar-detectable pattern layer 2. The radar-detectable pattern layer 2 is inseparably combined with the sphere 1 for reflecting radar signal waves. It should be noted that the radar-detectable pattern layer 2 includes a plurality of reflection patterns 21 with designed shapes and sizes, which can amplify the radar echo signal. Therefore, the complete movement process of the golf ball and related hitting data can be tracked through a radar system, which helps to improve the hitting performance of the golfer.
[0043] In an embodiment of the present utility model, the sphere 1 has a top surface 101, a bottom surface 102, and an intermediate toroidal surface 103 located between the top surface 101 and the bottom surface 102 and surrounding the center of the sphere; the area where the top surface 101 is located may be the north pole region of the sphere 1, the area where the bottom surface 102 is located may be the south pole region of the sphere 1, and the area where the intermediate toroidal surface 103 is located may be the equatorial region of the sphere 1. The radar-detectable pattern layer 2 is formed on the intermediate toroidal surface 103, where a plurality of reflection patterns 21 are evenly spaced on the intermediate toroidal surface 103, that is, there are blank areas between adjacent two reflection patterns 21.
[0044] Please refer to Figure 4 , Figure 8 and Figure 12 , which show the distribution positions of the plurality of reflection patterns 21 on the intermediate toroidal surface 103 (after being unfolded into a plane) of the sphere 1. As shown in the above-mentioned drawings, the plurality of reflection patterns 21 are evenly spaced at a predetermined arc length D, and the predetermined arc length D is in the range of 5 mm to 70 mm. It should be noted that although four reflection patterns 21 are shown to be evenly spaced on the intermediate toroidal surface 103 in the above-mentioned drawings, the number of reflection patterns 21 can be increased or decreased according to requirements, such as a combination of three or more than five. Optionally, the number of reflection patterns 21 is four and are respectively located at the 0-degree position, 90-degree position, 180-degree position, and 270-degree position of the intermediate toroidal surface 103.
[0045] In one feasible or optional embodiment, the predetermined arc length D can be 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, or 70 mm.
[0046] Please also refer to Figure 13 and Figure 14 , which show an operation example of forming the radar-detectable pattern layer 2 on the intermediate toroidal surface 103 of the sphere 1. In actual application, the radar-detectable pattern layer 2 can be formed by a pad printing ink composition. Specifically, the recessed part 31 of the steel plate 3 is first filled with the ink composition, and then the pad printing rubber head 4 is used to transfer and imprint the ink composition from the steel plate 3 onto the intermediate toroidal surface 103 of the sphere 1, and the clamping member 5 is used to drive the sphere 1 to rotate to different positions, so as to form a plurality of reflection patterns 21 evenly spaced on the intermediate toroidal surface 103. It should be noted that the ink pad printing operation at the same position on the intermediate toroidal surface 103 can be repeated multiple times (such as two or three times) to improve the detection effect of the radar. However, the above-mentioned examples are only one feasible embodiment and are not intended to limit the present utility model. For example, the radar-detectable pattern layer 2 can also be formed by intaglio or relief or screen printing, water transfer printing, heat transfer printing, digital printing, smearing or spraying the ink composition.
[0047] The ink composition suitable for the present utility model may be a UV-reactive ink and can be cured under UV light irradiation with a wavelength of about 180 nm to 380 nm, but the present utility model is not limited thereto. For example, the ink composition suitable for the present utility model may also be a heat-reactive ink. In addition, the ink composition includes reflective particles with a particle size between 20 μm and 300 μm; the reflective particles may adopt one or a combination of more than one of the following: organic pigments or dyes, inorganic pigments, mineral pigments, fluorescent pigments or dyes, metal or alloy pigments, copper-based pigments, aluminum-based pigments, glass pigments, ceramic pigments, pearlescent pigments, angle-changing pigments, chameleon pigments, interference pigments, photosensitive color-changing pigments, temperature-sensitive color-changing pigments, infrared reflective pigments, X-ray reflective pigments, conductive pigments, luminous pigments, ultraviolet fluorescent pigments or dyes, invisible pigments, anti-counterfeiting pigments, glitter powder and laser powder. However, the present utility model is not limited to the examples listed above.
[0048] In one possible or optional embodiment, the particle size of the reflective particles may be 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, 200 μm, 210 μm, 220 μm, 230 μm, 240 μm, 250 μm, 260 μm, 270 μm, 280 μm, 290 μm or 300 μm.
[0049] In one possible or optional embodiment, the reflective particles may adopt conductive particles, which may be carbon materials such as graphene, silicon-containing conductive materials such as silicon or silicon carbide, metals such as silver, copper, gold, aluminum, tungsten, iron, platinum, lead, nickel, chromium or their alloys, or any combination thereof. In addition, the conductive particles may be formed into granular, fibrous, rod-shaped, sheet-shaped or hollow-shaped. Thus, each reflective pattern 21 may have a resistivity between 10 -8 ohms-cm and 10 10 ohms-cm. In this embodiment, the ink composition may include a binder, such as a mixture of polyester or alkyd resin, polyurethane, polyurea, polyacrylate, polyol resin and isocyanate, a mixture of epoxy resin and amino resin, or any combination thereof. However, the present utility model is not limited to the examples listed above.
[0050] Specific examples of the sphere 1 and the radar-detectable pattern layer 2 of the present utility model are described below, but the present utility model is not limited to these examples.
[0051] Example 1 of the sphere 1
[0052] Such as Figure 15 andFigure 16 As shown, the sphere 1 includes a sphere center 11 and a spherical shell 12 covering the sphere center 11, and a radar-detectable pattern layer 2 is formed between the sphere center 11 and the spherical shell 12. Optionally, the sphere 1 may further include an intermediate layer 13 formed between the sphere center 11 and the spherical shell 12, and the radar-detectable pattern layer 2 is formed on the intermediate layer 13 and covered by the spherical shell 12. The materials of the respective components of the sphere 1 related to Example 1 are not the key technical points of the present utility model, and can be obtained or completed by those skilled in the art based on the content disclosed in this specification and the general knowledge they possess.
[0053] Example 2 of the sphere 1
[0054] As Figure 17 shown, the sphere 1 includes, from the inside out: a sphere center 11, an intermediate layer 13, a first adhesive layer 14, and a spherical shell 12. Specifically, the spherical shell 12 covers the sphere center 11, the intermediate layer 13 is formed between the sphere center 11 and the spherical shell 12, and the first adhesive layer 14 is formed between the intermediate layer 13 and the spherical shell 12. In this example, the radar-detectable pattern layer 2 is formed on the intermediate layer 13 and covered by the first adhesive layer 14. The materials of the respective components of the sphere 1 related to Example 2 are not the key technical points of the present utility model, and can be obtained or completed by those skilled in the art based on the content disclosed in this specification and the general knowledge they possess.
[0055] Example 3 of the sphere 1
[0056] As Figure 18 shown, the sphere 1 includes, from the inside out: a sphere center 11, an intermediate layer 13, a second adhesive layer 15, a first adhesive layer 14, and a spherical shell 12. Specifically, the spherical shell 12 covers the sphere center 11, the intermediate layer 13 is formed between the sphere center 11 and the spherical shell 12, the first adhesive layer 14 is formed between the intermediate layer 13 and the spherical shell 12, and the second adhesive layer 15 is formed between the intermediate layer 13 and the first adhesive layer 14. In this example, the radar-detectable pattern layer 2 is formed on the second adhesive layer 15 and covered by the first adhesive layer 14. The materials of the respective components of the sphere 1 related to Example 3 are not the key technical points of the present utility model, and can be obtained or completed by those skilled in the art based on the content disclosed in this specification and the general knowledge they possess.
[0057] Example 4 of the sphere 1
[0058] As Figure 19As shown in the figure, the sphere 1 includes, from the inside out: a sphere center 11, an intermediate layer 13, an adhesive layer 14', a spherical shell 12, one or more primer layers 16 (such as a white primer layer), and a topcoat layer 17 (such as a transparent topcoat layer). Specifically, the spherical shell 12 is wrapped outside the sphere center 11, the intermediate layer 13 is formed between the sphere center 11 and the spherical shell 12, the adhesive layer 14' is formed between the intermediate layer 13 and the spherical shell 12, the primer layer 16 is arranged around the spherical shell 12, and the topcoat layer 17 covers the primer layer 16. In this example, the radar-detectable pattern layer 2 is formed on the primer layer 16 and covered by the topcoat layer 17. The materials of the respective components of the sphere 1 in Example 4 are not the key technical points of the present utility model, and can be obtained or completed by those skilled in the art based on the content disclosed in this specification and their general knowledge.
[0059] Example 5 of the sphere 1
[0060] As Figure 20 shown in the figure, the sphere 1 includes, from the inside out: a sphere center 11, an intermediate layer 13, an adhesive layer 14', a spherical shell 12, one or more primer layers 16 (such as a white primer layer), and a topcoat layer 17 (such as a transparent topcoat layer). Specifically, the spherical shell 12 is wrapped outside the sphere center 11, the intermediate layer 13 is formed between the sphere center 11 and the spherical shell 12, the adhesive layer 14' is formed between the intermediate layer 13 and the spherical shell 12, the primer layer 16 is arranged around the spherical shell 12, and the topcoat layer 17 covers the primer layer 16. In this example, the radar-detectable pattern layer 2 is formed on the spherical shell 12 and covered by the primer layer 16. The materials of the respective components of the sphere 1 in Example 5 are not the key technical points of the present utility model, and can be obtained or completed by those skilled in the art based on the content disclosed in this specification and their general knowledge.
[0061] Example 1 of the radar-detectable pattern layer
[0062] As Figure 2 and Figure 4 shown in the figure, the sphere 1 defines a circular line CL centered at the center of the sphere, and the radius of the circular line CL is equal to the radius of the sphere 1. Each reflection pattern 21 of the radar-detectable pattern layer 2 includes two reflection pattern units 21P symmetrically arranged with respect to the circular line CL, and each reflection pattern unit 21P includes two sub-pattern units 210 symmetrically arranged with respect to a symmetry axis S, and the symmetry axis S is perpendicular to the circular line CL. Additionally, each sub-pattern unit 210 includes a first stripe 211 and a second stripe 212 connected to each other, where the first stripe 211 is parallel to the circular line CL, and the second stripe 212 is located between the first stripe 211 and the circular line CL and forms an angle θ with the first stripe 211, and the angle θ is between 1 degree and 120 degrees. Additionally, the second stripe 212 is closer to the symmetry axis S than the first stripe 211.
[0063] In Example 1, the height and width of each reflection pattern 21 can be in the range of 5 mm to 70 mm.
[0064] Example 2 of the radar-detectable pattern layer
[0065] As Figure 6 and Figure 8 shown, the sphere 1 defines a circular line CL centered at the center of the sphere, and the radius of the circular line CL is equal to the radius of the sphere 1. Each reflection pattern 21 of the radar-detectable pattern layer 2 includes two reflection pattern units 21P and a connection unit 21C. The two reflection pattern units 21P are respectively located on opposite sides of the circular line CL and are symmetrically arranged with respect to the circular line CL. The position of the connection unit 21C corresponds to the circular line CL and is designed to connect the two reflection pattern units 21P.
[0066] Specifically, the connection unit 21C is a connecting stripe. Each reflection pattern unit 21P includes two sub-pattern units 210 that are symmetrically arranged with respect to a symmetry axis S, and the symmetry axis S is perpendicular to the circular line CL. In addition, each sub-pattern unit 210 includes a first stripe 211 and a second stripe 212 connected to each other, where the first stripe 211 is parallel to the circular line CL (connecting stripe), the second stripe 212 extends from the connecting stripe to the first stripe 211, and the second stripe 212 forms an angle θ with the first stripe 211, and the angle θ is between 1 degree and 120 degrees. In addition, the second stripe 212 is closer to the symmetry axis S than the first stripe 211.
[0067] In Example 2, the height and width of each reflection pattern 21 can be in the range of 5 mm to 70 mm.
[0068] Example 3 of the radar-detectable pattern layer
[0069] As Figure 10 and Figure 12 shown, the sphere 1 defines a circular line CL centered at the center of the sphere, and the radius of the circular line CL is equal to the radius of the sphere 1. Each reflection pattern 21 of the radar-detectable pattern layer 2 is an S-shaped pattern and its position corresponds to the circular line CL.
[0070] In Example 3, the height and width of each reflection pattern 21 can be in the range of 5 mm to 70 mm.
[0071] Beneficial effects of the embodiments
[0072] The golf ball detectable by the radar provided by the present utility model can be detected and tracked by a radar system in an environment with a limited distance (such as an indoor practice range) by virtue of "a radar-detectable pattern layer is formed on the middle toroidal surface of the sphere" and "the radar-detectable pattern layer includes a plurality of reflection patterns evenly distributed at a predetermined arc length (in the range of 5 mm to 70 mm)", so as to provide accurate and reliable hitting performance data for golfers.
[0073] The content disclosed above is only a preferred and feasible embodiment of the present utility model, and does not limit the protection scope of the claims of the present utility model. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present utility model are included in the protection scope of the claims of the present utility model.
Claims
1. A radar-detectable golf ball, characterized in that: Golf balls that can be detected by the radar include: a sphere having a central annulus surrounding the center of the sphere; and A radar detectable pattern layer is formed on the middle annular surface, wherein the radar detectable pattern layer includes a plurality of reflection patterns distributed at equal intervals with a predetermined arc length, and the predetermined arc length is in the range of 5 mm to 70 mm.
2. The radar detectable golf ball according to claim 1, wherein: The number of the reflection patterns is three or more.
3. The radar detectable golf ball according to claim 2, wherein: The number of the reflection patterns is four and they are respectively located at the 0 degree position, 90 degree position, 180 degree position and 270 degree position of the middle annular surface.
4. The radar detectable golf ball of claim 1, wherein: The sphere defines a circular line with the center of the sphere as the center, and each of the reflection patterns includes two reflection pattern units that are symmetrically arranged relative to the circular line.
5. The radar detectable golf ball of claim 4, wherein: Each of the reflective pattern units includes two sub-pattern units symmetrically arranged relative to a symmetry axis, and the symmetry axis is perpendicular to the circular line; wherein each of the sub-pattern units includes a first stripe and a second stripe connected to each other, the first stripe is parallel to the circular line, the second stripe is located between the first stripe and the circular line, and forms an angle with the first stripe, and the angle is between 1 degree and 120 degrees; wherein the second stripe is closer to the symmetry axis than the first stripe.
6. The radar detectable golf ball of claim 1, wherein: The sphere defines a circular line with the center of the sphere as the center, and each of the reflection patterns is an S-shaped pattern and its position corresponds to the circular line.
7. The radar detectable golf ball according to any one of claims 1 to 6, characterized in that: The sphere includes a spherical center and a spherical shell covering the spherical center, and the radar detectable pattern layer is formed between the spherical center and the spherical shell, or is formed on the spherical shell.
8. The radar detectable golf ball of claim 7, wherein: The sphere includes an intermediate layer formed between the sphere center and the sphere shell, and the radar detectable pattern layer is formed on the intermediate layer and covered by the sphere shell.
9. The radar detectable golf ball of claim 8, wherein: The sphere includes a first adhesive layer formed between the intermediate layer and the sphere shell, and the radar detectable pattern layer is covered by the first adhesive layer.
10. The radar detectable golf ball of claim 9, wherein: The sphere includes a second adhesive layer formed between the middle layer and the first adhesive layer, and the radar detectable pattern layer is formed on the second adhesive layer and covered by the first adhesive layer.
11. The radar detectable golf ball of claim 7, wherein: The sphere includes an intermediate layer arranged around the center of the sphere, an adhesive layer formed between the intermediate layer and the sphere shell, and a topcoat layer coated outside the sphere shell. The radar detectable pattern layer is formed on the sphere shell and covered by the topcoat layer.
12. The radar detectable golf ball of claim 11, wherein: The sphere includes at least one primer layer formed between the sphere shell and the top paint layer, and the radar detectable pattern layer is formed on the primer layer.
13. The radar detectable golf ball of claim 1, wherein: The radar detectable pattern layer is formed of an ink composition, and the ink composition includes reflective particles with a particle size between 20 μm and 300 μm.
14. The radar detectable golf ball of claim 1, wherein: A height and a width of each of the reflection patterns are in a range of 5 mm to 70 mm.