Lens structure and mold

Abstract

This application relates to a lens structure and a mold. The lens structure includes multiple lenses and multiple connecting parts, with the lenses arranged in at least one row at intervals. Each connecting part connects to a portion of the side surface of a lens in the circumferential direction at both ends, connecting adjacent lenses. The connecting parts of this lens structure only connect to a portion of the side surface of the lens, significantly reducing the connection structure between lenses, improving the curing shrinkage during lens structure molding, and reducing the dimensional shrinkage rate of the lens structure. When applied to the production of light source devices, the lens structure is first heated to expand it and restore its shrunken size. Then, it is bonded to a bracket while maintaining a temperature. Because the connection structure between lenses is significantly reduced, the lens structure does not expand excessively and can return to a preset size, ultimately achieving alignment between the lens and the light-emitting chip.

Description

Technical Field

[0001] This application relates to the field of optical element technology, and in particular to a lens structure and mold. Background Technology

[0002] The traditional manufacturing process for light source devices typically involves: placing a light-emitting chip inside an array cup of a support, then applying an adhesive layer to the top surface of the array cup; molding a lens layer using a mold, which includes a connecting adhesive layer and array lenses disposed within the connecting adhesive layer, with each lens surrounded by the connecting adhesive layer; aligning the array lenses with the light-emitting chips inside the array cup, then bonding the array lenses of the lens layer to the top surface of the array cup using the adhesive layer; after the adhesive layer has cured, removing the connecting adhesive layer to obtain a single lens, and then separating the array cup from the support to obtain a single light source device.

[0003] However, when the lens layer is molded, the lens glue filled in the mold will shrink after curing, resulting in a smaller size of the lens layer. This makes it impossible for the array lens of the lens layer to be aligned with the light-emitting chip in the array cup, thus affecting the light efficiency of the light source device. Summary of the Invention

[0004] Therefore, it is necessary to provide a lens structure and mold to address the problem that the lens layer cannot be aligned with the light-emitting chip due to molding shrinkage in the manufacturing process of traditional light source devices.

[0005] A lens structure, comprising:

[0006] Multiple lenses, the multiple lenses being arranged in at least one row at intervals; and

[0007] Multiple connecting parts, each of which has its two ends connected to a portion of the side of a lens in the circumferential direction, and connecting adjacent lenses.

[0008] In one embodiment, the plurality of lenses are arranged in a rectangular array; the plurality of connecting portions include a plurality of first connecting portions and a plurality of second connecting portions, the plurality of first connecting portions connecting all the lenses along a first direction, and the plurality of second connecting portions connecting all the lenses along a second direction, so that the lens structure is hollowed out and has a plurality of hollow portions.

[0009] In one embodiment, each lens includes a base and a light-emitting portion, the light-emitting portion being disposed on the front side of the base; each connecting portion is connected between adjacent sides of the base, and the thickness of the connecting portion is less than the height of the side of the base.

[0010] In one embodiment, the front of each of the connectors is flush with or on the same plane as the front of the corresponding base.

[0011] In one embodiment, the lens structure further includes: a plurality of glue overflow portions, which are arranged one-to-one with the plurality of hollow portions and close the plurality of hollow portions. Each glue overflow portion has a preset thickness, which is less than the thickness of the connecting portion.

[0012] In one embodiment, the front side of each of the adhesive overflow portions is flush with or located on the same plane as the front side of the corresponding base and the front side of the corresponding connector.

[0013] A mold, wherein the mold has a cavity, the cavity comprising:

[0014] A plurality of lens cavities, the plurality of lens cavities being arranged at intervals in at least one row, each lens cavity being used to form a lens and having cavity sidewalls; and

[0015] Multiple connection channels, each of which connects to an adjacent lens cavity and penetrates a portion of the cavity sidewall of the lens cavity.

[0016] In one embodiment, the plurality of lens cavities are arranged in a rectangular array; the plurality of connection channels include a plurality of first connection channels and a plurality of second connection channels, the plurality of first connection channels connecting all the lens cavities along a first direction, and the plurality of second connection channels connecting all the lens cavities along a second direction.

[0017] In one embodiment, each lens cavity includes a first cavity and a second cavity that are connected to each other, and the cavity sidewall is the sidewall of the first cavity; each connecting channel is laterally connected to the corresponding first cavity, and the depth of each connecting channel is less than the height of the cavity sidewall of the first cavity.

[0018] In one embodiment, the mold cavity further includes a plurality of overflow cavities, each of the overflow cavities communicating with two opposing first connecting channels, two opposing second connecting channels, and a plurality of surrounding lens cavities, wherein the depth of the overflow cavity is less than the depth of the connecting channels.

[0019] The aforementioned lens structure and mold, by setting connecting parts between the lenses, which only connect a portion of the lens's side surface in the circumferential direction, significantly reduces the connecting structures between lenses compared to the lens layers used in the manufacturing process of traditional light source devices. This improves the curing shrinkage during lens structure molding, reducing the curing shrinkage rate of the lens structure, i.e., its dimensional shrinkage rate is smaller. Moreover, when applied to the production of light source devices, before bonding the lens structure, the lens structure is first heated to expand it and restore its shrunken size. Then, it is bonded to the bracket while maintaining its temperature. Because the connecting structures between the lenses are significantly reduced, the lens structure will not expand excessively and can return to the preset size, ultimately achieving alignment between the lens and the light-emitting chip. Attached Figure Description

[0020] Figure 1 This is a partial structural diagram of the lens structure in the first embodiment of this application.

[0021] Figure 2 for Figure 1 Top view of the central lens structure.

[0022] Figure 3 for Figure 1 Front view of the middle lens structure.

[0023] Figure 4 This is a partial structural diagram of the lens structure in the second embodiment of this application.

[0024] Figure 5 for Figure 4 Top view of the central lens structure.

[0025] Figure 6 for Figure 5 A cross-sectional view of the middle lens structure along line II.

[0026] Figure 7 This is a partial cross-sectional view of a mold in one embodiment of this application.

[0027] Figure 8 for Figure 7 A top view of the lower mold of the middle mold.

[0028] Figure 9 This is a partial cross-sectional view of the mold in another embodiment of this application.

[0029] Figure 10 for Figure 9 A top view of the lower mold of the middle mold.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100 - Lens structure; 110 - Lens; 112 - Base; 114 - Light emitting part; 116 - Spacer space; 120 - Connecting part; 122 - First connecting part; 124 - Second connecting part; 130 - Hollowed-out part; 140 - Glue overflow part;

[0032] 200-Mold; 210-Mold cavity; 220-Lens cavity; 222-Cavity sidewall; 224-First cavity; 226-Second cavity; 230-Connecting channel; 232-First connecting flow channel; 234-Second connecting flow channel; 240-Upper mold; 250-Lower mold; 260-Overflow cavity. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0039] Please see Figures 1 to 3 , Figure 1 A partial structural schematic diagram of the lens structure in the first embodiment of this application is shown. Figure 2 It shows Figure 1 Top view of the middle lens structure. Figure 3 It shows Figure 1 The first embodiment of this application provides a lens structure 100, which includes a plurality of lenses 110 and a plurality of connecting portions 120. The plurality of lenses 110 are arranged in at least one row at intervals. Each connecting portion 120 is connected at both ends to a portion of the side surface of a lens 110 in the circumferential side direction, and is connected between adjacent lenses 110.

[0040] By providing a connecting portion 120 between the lenses 110, which connects only a portion of the side surface of the lenses 110 in the circumferential direction, the connection structure between the lenses 110 is significantly reduced compared to the lens layers used in the manufacturing process of traditional light source devices. This improves the curing shrinkage of the lens structure 100 during molding, reducing the curing shrinkage rate of the lens structure 100, i.e., its dimensional shrinkage rate is smaller. Moreover, when applied to the production of light source devices, before bonding the lens structure 100, the lens structure 100 is first heated to expand it and restore its shrunken size. Then, it is bonded to the bracket while maintaining its temperature. Since the connection structure between the lenses 110 is significantly reduced, the lens structure 100 will not expand excessively and can return to the preset size, ultimately achieving alignment between the lens 110 and the light-emitting chip.

[0041] It should be noted that the side surface of lens 110 is not the optical interface of lens 110. It usually serves as a non-functional interface, playing an auxiliary role, such as a connecting function or as the outer surface of the supporting structure of lens 110. The connecting part 120 only connects a portion of the side surface of lens 110 in the circumferential direction, leaving the other sides of lens 110 blank. This is significantly different from the traditional lens layer where the connecting adhesive layer connects all sides of the lens and surrounds it. The size of the side surface of connecting part 120 determines the size of the corresponding connecting side surface on lens 110. Connecting part 120 can be a connecting strip, with a smaller connecting side surface of lens 110; connecting part 120 can also be a connecting rib, with a larger connecting side surface of lens 110; or connecting part 120 can also be a connecting piece, with a smaller connecting side surface of lens 110. Here, "circumferential direction" can be understood as the direction surrounding the side surface of lens 110. When the side surface of lens 110 is a circular surface, "circumferential direction" is the circumferential direction.

[0042] Multiple lenses 110 are arranged in a rectangular array. Multiple connecting portions 120 include multiple first connecting portions 122 and multiple second connecting portions 124. The multiple first connecting portions 122 are connecting portions 120 in a first direction, and the multiple second connecting portions 124 are connecting portions 120 in a second direction. The multiple first connecting portions 122 connect all lenses 110 along the first direction, and the multiple second connecting portions 124 connect all lenses 110 along the second direction, making the lens structure 100 have a hollowed-out arrangement and multiple hollow portions 130. Figure 2 The first direction is vertical, and the second direction is horizontal.

[0043] The first connecting portion 122 and the second connecting portion 124 satisfy the minimum connection requirements between lenses 110, while making the hollow portion 130 as large as possible and minimizing the connection structure between lenses 110. This facilitates better control of the thermal expansion and contraction of the lens structure 100, allowing the lenses 110 to be better aligned with the light-emitting chip. Simultaneously, during the molding of the lens structure 100, the first connecting portion 122 and the second connecting portion 124 are formed through a flow channel, which simplifies the mold structure and reduces mold costs. In other embodiments, the first direction can be transverse, and the second direction can be longitudinal; or, multiple lenses 110 can be arranged in a row with only intervals, and arranged transversely, longitudinally, diagonally, curvedly, or in other irregular arrangements.

[0044] Please combine Figure 3 Each lens 110 includes a base 112 and a light-emitting part 114, with the light-emitting part 114 located on the front side of the base 112. Each connecting part 120 connects to the side surfaces of adjacent bases 112, and the thickness of the connecting part 120 is less than the height of the side surface of the base 112, thereby reducing the thickness of the connecting part 120, reducing the overall material usage of the lens structure 100, and also helping to improve the thermal expansion and contraction of the lens structure 100.

[0045] Furthermore, the back of the connecting part 120 and the side of the base 112 are stepped, that is, there is a gap space 116 between the back of the connecting part 120 and the back of the base 112 due to the height difference. When cutting the connecting part 120, the gap space 116 provides the cutting space, making it easier to cut the connecting part 120 and improving the cutting efficiency.

[0046] Furthermore, the front surface of each connecting part 120 is flush with the front surface of the corresponding base 112. In other words, the front surface of the connecting part 120 and the front surface of the base 112 are on the same plane. With a fixed thickness of the connecting part 120, the gap 116 between the back surface of the connecting part 120 and the back surface of the base 112 is larger, meaning there is a larger cutting space during cutting, making the cutting of the connecting part 120 easier and more efficient. It is understood that the front surface of the connecting part 120 and the front surface of the base 112 are basically planar, but not strictly limited to a completely flat plane. There may be slight local unevenness, but this does not affect the overall planar tendency.

[0047] It should be noted that, due to the existence of the gap space 116, the thickness of the connecting part 120 is always less than the height of the side of the base 112. That is, the connecting part 120 cannot be higher than the front of the base 112, because the protruding part of the connecting part 120 cannot play a connecting role, which is contrary to common sense.

[0048] Furthermore, both the first connecting portion 122 and the second connecting portion 124 are connecting ribs. The length of the first connecting portion 122 is greater than the length of the second connecting portion 124, and the width and thickness of the first connecting portion 122 are equal to the width and thickness of the second connecting portion 124. When the lens structure 100 is molded, the first connecting portion 122 and the second connecting portion 124 are formed by a flow channel connecting the lens cavity, and the lens cavity is used to form the lens 110.

[0049] Please see Figures 4 to 6 Combined Figure 1 and Figure 2 , Figure 4 A partial structural schematic diagram of the lens structure in the second embodiment of this application is shown. Figure 5 It shows Figure 4 Top view of the middle lens structure. Figure 6 It shows Figure 5 The cross-sectional view of the lens structure along line II shows that, compared to the lens structure 100 in the above embodiment, the lens structure 100 in this embodiment further includes multiple glue overflow portions 140. The multiple glue overflow portions 140 are arranged one-to-one with multiple hollow portions 130, and the multiple hollow portions 130 are closed. Each glue overflow portion 140 has a preset thickness, which is less than the thickness of the connecting portion 120.

[0050] When the lens structure 100 is molded, a slight gap inevitably exists between the parting surfaces due to manufacturing tolerances after the upper and lower molds are closed. High-pressure injection molding adhesive can easily seep into this gap and form a thin film layer. This thin film layer needs to be removed separately after the lens structure 100 is demolded, but it is difficult to remove due to its small thickness. To address this, by controlling the height of this gap, a preset thickness is given to the overflow portion 140. Because the overflow portion 140 has a preset thickness, it is easier to remove, and the precision requirements of the corresponding part of the mold are reduced, thus reducing the processing difficulty of the mold.

[0051] The front of each glue overflow portion 140 is flush with the front of the corresponding base 112 and the front of the corresponding connecting portion 120. In other words, the front of the glue overflow portion 140, the front of the base 112, and the front of the connecting portion 120 are all located on the same plane. However, a multi-level height difference is formed between the back of the glue overflow portion 140, the back of the connecting portion 120, and the back of the base 112, which provides cutting space and makes it easier to remove the glue overflow portion 140 and the connecting portion 120, thereby improving production efficiency.

[0052] It should be noted that the excess glue portion 140 and the connecting portion 120 can be removed in one go using a punching tool; or a cutting tool can be used to first remove the excess glue portion 140 and the connecting portion 120 column by column along the longitudinal direction, and then remove the excess glue portion 140 and the connecting portion 120 row by row along the transverse direction. Moreover, the cutting method is not limited to metal cutting, waterjet cutting, or laser cutting.

[0053] As for the other aspects of the lens structure 100 in this embodiment, they are basically the same as the other aspects of the lens structure 100 in the above embodiments. The specific details can be referred to the description of the above embodiments, and will not be repeated here.

[0054] Please see Figure 7 and Figure 8 Combined Figure 1 and Figure 2 , Figure 7 A partial cross-sectional view of a mold according to an embodiment of this application is shown. Figure 8 It shows Figure 7 A top view of the lower mold of the middle mold. An embodiment of this application provides a mold 200, which has a mold cavity 210 for injection molding the lens structure 100 of the first embodiment described above. The mold cavity 210 includes a plurality of lens cavities 220 and a plurality of connecting channels 230. The plurality of lens cavities 220 are arranged in at least one row at intervals. Each lens cavity 220 is used to mold a lens 110 and has a cavity sidewall 222. Each connecting channel 230 connects to an adjacent lens cavity 220 and penetrates a portion of the cavity sidewall 222 of the lens cavity 220.

[0055] Since each connecting channel 230 connects to an adjacent lens cavity 220, during injection molding, high-pressure injection adhesive flows through the connecting channel 230 and fills the lens cavity 220 until the entire mold cavity 210 is filled with injection adhesive, ultimately forming the lens structure 100. The connecting channel 230 forms the connecting part 120 of the lens structure 100, which also significantly reduces the connecting structure between lenses 110, improves the curing shrinkage of the lens structure 100 during molding, and reduces the curing shrinkage rate of the lens structure 100, that is, its dimensional shrinkage rate becomes smaller. Moreover, when applied to the production of light source devices, before bonding the lens structure 100, the lens structure 100 is first heated to expand it and restore its shrunken size. Then, it is bonded to the bracket under heat preservation. Since the connecting structure between lenses 110 is greatly reduced, the lens structure 100 will not expand excessively and can restore to the preset size, ultimately achieving alignment between the lens 110 and the light-emitting chip.

[0056] Please combine Figure 8Multiple lens cavities 220 are arranged in a rectangular array. Multiple connection channels 230 include multiple first connection channels 232 and multiple second connection channels 234. The multiple first connection channels 232 connect all lens cavities 220 along a first direction, and the multiple second connection channels 234 connect all lens cavities 220 along a second direction.

[0057] The first connecting channel 232 corresponds to the first connecting portion 122, and the second connecting channel 234 corresponds to the second connecting portion 124, resulting in a hollowed-out lens structure 100. The first connecting portion 122 and the second connecting portion 124 meet the minimum connection requirements between lenses 110, while the hollowed-out portion 130 is made as large as possible to minimize the connection structure between lenses 110. This facilitates better control of the thermal expansion and contraction of the lens structure 100, allowing the lenses 110 to be better aligned with the light-emitting chip. The first connecting channel 232 is arranged longitudinally, and the second connecting channel 234 is arranged laterally. The length of the first connecting channel 232 is greater than that of the second connecting channel 234. In other embodiments, the first connecting channel 232 may be arranged laterally, while the second connecting channel 234 may be arranged longitudinally.

[0058] Each lens cavity 220 includes a first cavity portion 224 and a second cavity portion 226 that are connected to each other. The cavity sidewall 222 is the sidewall of the first cavity portion 224. The first cavity portion 224 is used to form the base 112 of the lens 110 in the above embodiment, and the second cavity portion 226 is used to form the light-emitting portion 114 of the lens 110 in the above embodiment. Each connecting channel 230 is laterally connected to the corresponding first cavity portion 224, and the depth of each connecting channel 230 is less than the height of the cavity sidewall 222 of the first cavity portion 224.

[0059] The first cavity 224 corresponds to the base 112 of the molded lens 110, and the second cavity 226 corresponds to the light-emitting part 114 of the molded lens 110. Since the depth of each connecting channel 230 is less than the height of the cavity sidewall 222 of the first cavity 224, after injection molding, the thickness of the connecting part 120 is less than the height of the sidewall of the base 112, which reduces the overall material used in the lens structure 100 and also helps to improve the thermal expansion and contraction of the lens structure 100.

[0060] Furthermore, the connection points between each connecting channel 230 and the first cavity 224 and the second cavity 226 are flush. After forming the lens structure 100, the front of the connecting part 120 is flush with or on the same plane as the front of the base 112. With the thickness of the connecting part 120 fixed, the gap space 116 between the back of the connecting part 120 and the back of the base 112 is larger, that is, the cutting space is larger, the cutting difficulty of the connecting part 120 is lower, and the cutting efficiency is higher.

[0061] Furthermore, the mold 200 includes an upper mold 240 and a lower mold 250. The upper mold 240 has multiple second cavities 226 arranged in an array. The lower mold 250 has multiple first cavities 224 and multiple connecting channels 230 arranged in an array. The connecting channels 230 connect adjacent first cavities 224. When the mold is closed, the multiple second cavities 226 correspond one-to-one with the multiple first cavities 224, and are connected and combined to form multiple lens cavities 220.

[0062] Clearly, the multiple first cavities 224 and multiple connecting channels 230 are formed on the parting surface of the lower mold 250, so that the front of the formed connecting portion 120 is flush with or on the same plane as the front of the base 112. The multiple second cavities 226 are formed on the parting surface of the upper mold 240.

[0063] Please see Figure 9 and Figure 10 Combined Figure 5 and Figure 6 , Figure 9 A partial cross-sectional view of a mold according to another embodiment of this application is shown. Figure 10 It shows Figure 9 The top view of the lower mold of the middle mold. Compared with the mold 200 in the above embodiment, the mold 200 in this embodiment is used to form the lens structure 100 in the second embodiment. Its mold cavity 210 also includes a plurality of overflow cavities 260. Each overflow cavity 260 is connected to two opposite first connecting channels 232, two opposite second connecting channels 234 and the surrounding plurality of lens cavities 220. The depth of the overflow cavity 260 is less than the depth of the connecting channel 230.

[0064] The overflow cavity 260 corresponds to the molding overflow part 140. The depth of the overflow cavity 260 gives the overflow part 140 a preset thickness. The overflow part 140 with this preset thickness is easy to remove. For example, a punching tool can be used to punch away all the overflow part 140 at once. At the same time, the precision requirements of the overflow cavity 260 are reduced, and the processing difficulty of the mold 200 is reduced.

[0065] Furthermore, multiple first cavities 224, multiple connecting channels 230, and multiple overflow cavities 260 are formed on the parting surface of the lower mold 250, so that the front of the formed connecting part 120, the front of the base 112, and the front of the overflow part 140 are flush or located on the same plane. In other words, the front of each overflow part 140 is flush with or located on the same plane as the front of the corresponding base 112 and the front of the corresponding connecting part 120. A multi-level height difference is formed between the back of the overflow part 140, the back of the connecting part 120, and the back of the base 112, which provides cutting space during cutting, makes it easier to remove the overflow part 140 and the connecting part 120, and improves production efficiency.

[0066] As for the other aspects of the mold 200 in this embodiment, they are basically the same as the other aspects of the mold 200 in the above embodiments. The specific details can be referred to the description of the above embodiments, and will not be repeated here.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A lens structure, characterized by, The lens structure (100) includes: A plurality of lenses (110), the plurality of lenses (110) being arranged at intervals in at least one row; and Multiple connecting portions (120), each of which has its two ends connected to a portion of the side of a lens (110) in the circumferential side direction, and is connected between adjacent lenses (110).

2. The lens structure according to claim 1, characterized in that, The plurality of lenses (110) are arranged in a rectangular array; The plurality of connecting portions (120) include a plurality of first connecting portions (122) and a plurality of second connecting portions (124). The plurality of first connecting portions (122) connect all the lenses (110) along a first direction, and the plurality of second connecting portions (124) connect all the lenses (110) along a second direction, so that the lens structure (100) is hollowed out and has a plurality of hollow portions (130).

3. The lens structure according to claim 2, characterized in that, Each of the lenses (110) includes a base (112) and a light-emitting part (114), the light-emitting part (114) being disposed on the front side of the base (112); Each of the connecting portions (120) is connected between the sides of adjacent bases (112), and the thickness of the connecting portion (120) is less than the height of the side of the base (112).

4. The lens structure of claim 3, wherein The front of each of the connecting parts (120) is flush with or located on the same plane as the front of the corresponding base (112).

5. The lens structure of claim 3, wherein The lens structure (100) further includes: Multiple glue overflow portions (140) are provided, each of which corresponds to one of the multiple hollow portions (130) and closes the multiple hollow portions (130). Each glue overflow portion (140) has a preset thickness, which is less than the thickness of the connecting portion (120).

6. The lens structure of claim 5, wherein The front surface of each of the glue overflow portions (140) is flush with or located on the same plane as the front surface of the corresponding base (112) and the front surface of the corresponding connecting portion (120).

7. A mold, said mold (200) having a mold cavity (210) therein, characterized by, The mold cavity (210) includes: A plurality of lens cavities (220) are arranged at intervals in at least one row, each lens cavity (220) being used to form a lens (110) and having a cavity sidewall (222); and Multiple connecting channels (230), each of the connecting channels (230) connecting adjacent lens cavities (220), and penetrating a portion of the cavity sidewall (222) of the lens cavity (220).

8. The mold according to claim 7, characterized in that, The plurality of lens cavities (220) are arranged in a rectangular array; The plurality of connection channels (230) include a plurality of first connection channels (232) and a plurality of second connection channels (234). The plurality of first connection channels (232) connect all the lens cavities (220) along a first direction, and the plurality of second connection channels (234) connect all the lens cavities (220) along a second direction.

9. The mold according to claim 7 or 8, characterized in that, Each of the lens cavities (220) includes a first cavity (224) and a second cavity (226) that are connected to each other, and the cavity sidewall (222) is the sidewall of the first cavity (224); Each of the connecting channels (230) is laterally connected to the corresponding first cavity (224), and the depth of each connecting channel (230) is less than the height of the cavity sidewall (222) of the first cavity (224).

10. The mold of claim 8, wherein, The mold cavity (210) further includes: Multiple overflow cavities (260), each of the overflow cavities (260) connecting two opposing first connecting channels (232), two opposing second connecting channels (234) and the surrounding multiple lens cavities (220), the depth of the overflow cavity (260) being less than the depth of the connecting channel (230).

Images