Multiple lens and camera modules

Abstract

The present application provides a multi-group lens, a camera module and an electronic device. The multi-group lens may include a first group unit and a second group unit, the first group unit may include a first carrier body and at least one first lens accommodated in the first carrier body, and the second group unit may include a second carrier body, at least one second lens accommodated in the second carrier body and a receiving portion connected to the second carrier body. When the first group unit and the second group unit are assembled, there may be an adjustable gap between the first carrier body and the receiving portion, and between the first carrier body and the bottom surface of the lowest lens of the first lens and the top surface of the highest lens of the second lens, so that the first group unit and the second group unit can have an adjustment space with six degrees of freedom.

Description

Technical Field

[0001] The present application relates to the field of camera modules, and in particular, to a multi-group lens, a multi-group lens camera module and an electronic device. Background Art

[0002] As an important component of the camera module, the lens directly affects the imaging quality of the camera module. With the continuous development of intelligence, the requirements for camera modules are constantly increasing. For example, there are increasingly higher requirements for high pixels in imaging, which also makes the number of lenses in the camera module lens continue to increase, for example, reaching 5 to 6 pieces.

[0003] In traditional lenses, multiple lenses are usually assembled into a lens barrel one by one. During the assembly process, there is inevitably a certain tolerance when assembling each lens and the lens barrel. Finally, the lens as a whole and the lens barrel are assembled to form a cumulative tolerance, which is the assembly tolerance of a single lens. Therefore, the more lenses there are, the greater the cumulative tolerance, the lower the overall quality of the lens, and the lower the yield rate during the lens production process.

[0004] On the other hand, for traditional lenses, multiple lenses are assembled in the same lens barrel, and the relative positions of the lenses are fixed and cannot be adjusted. Once the lenses are assembled in the lens barrel, the quality of the lens is determined, which also makes the processing accuracy requirements for the lens barrel and lenses higher.

[0005] It is worth mentioning that for lenses with a small number of lenses, the assembly tolerance of the lenses has little impact. However, when the number of lenses increases, due to the incoming materials and assembly tolerances of each lens, lens barrel, spacer, etc., the assembly yield rate decreases and the imaging quality decreases, and the difficulty of lens assembly increases. Therefore, how to ensure good imaging quality and the yield rate in the production process in a multi-lens lens structure is an important aspect that needs to be studied.

[0006] It is also worth mentioning that the lens of the lens and the assembly relationship between the lens and the lens barrel directly affect the quality of the lens. For camera modules, especially those used in some smart devices, such as smart phones, their size is relatively small. Therefore, how to combine existing equipment requirements and make full use of the structure of the lens and study lenses suitable for actual production applications are also aspects that need to be considered. Summary of the invention

[0007] The present application aims to provide a solution that can overcome at least one of the above-mentioned defects of the prior art.

[0008] One of the purposes of the present invention is to provide a multi-group lens and a camera module, wherein the multi-group lens is assembled by a plurality of group units, thereby reducing the cumulative tolerance of the overall lens.

[0009] One of the purposes of the present invention is to provide a multi-group lens and a camera module, wherein when a first group unit and a second group unit are assembled, an adjustable gap exists between the two, so that during the assembly process of the multi-group lens, the relative positions between the various group units can be adjusted, thereby reducing the cumulative tolerance.

[0010] One of the purposes of the present invention is to provide a multi-group lens and camera module, wherein when a first group unit and a second group unit are assembled, there is a reserved adjustable gap between the first carrier body and the receiving portion, and there is a reserved adjustable gap between the first carrier body and the first lens and the second lens, so that the first group unit and the second group unit can have an adjustment space with six degrees of freedom.

[0011] An object of the present invention is to provide a multi-group lens and a camera module, wherein each group unit includes a plurality of lenses, so that the number of lenses of the multi-group lens as a whole is larger, so as to provide better optical imaging quality.

[0012] According to one aspect of the present application, a multi-group lens is provided, which includes a first group unit, including a first carrier body and at least one first lens accommodated in the first carrier body; and a second group unit, including a second carrier body, at least one second lens accommodated in the second carrier body, and a receiving portion connected to the second carrier body, wherein, when the first group unit and the second group unit are assembled, an adjustable gap exists between the first carrier body and the receiving portion, and between the first carrier body and the bottom surface of the lowest lens among the first lenses and the top surface of the highest lens among the second lenses.

[0013] In one embodiment, there is an adjustable gap between the outer circumference of the first bearing body and the inner circumference of the receiving portion.

[0014] In one embodiment, there is an adjustable gap between the bottom surface of the first supporting body and the top surface of the receiving portion.

[0015] In one embodiment, there is an adjustable gap between the bottom surface of the lowest lens in the first lenses and the top surface of the receiving portion in the second group unit.

[0016] In one embodiment, the first group unit further includes an extension portion extending outward from the first carrying body, and an adjustable gap exists between a bottom surface of the extension portion and a top surface of the receiving portion.

[0017] In one embodiment, the first group unit includes at least one spacer, which is arranged in conjunction with the first lens to provide a predetermined light path, wherein one of the spacers is arranged at the lower part of the lowest lens among the first lenses, and there is an adjustable gap between the bottom surface of the one spacer and the uppermost lens of the second lens and the top surface of the receiving portion.

[0018] In one embodiment, the second group unit includes at least one spacer, which is arranged in conjunction with the second lens to provide a predetermined light path, wherein one of the spacers is arranged on the upper part of the uppermost lens of the second lenses, and an adjustable gap exists between the bottom surface of the lowermost lens of the first lens and the top surface of the one spacer.

[0019] In one embodiment, the overall optical performance of the multiple groups of lenses is adjusted by active calibration, and the adjustable gap is formed as a solidified gap.

[0020] In one embodiment, the curing gap enables the first group of units to be tilted relative to the second group of units at an angle of ≤0.5°.

[0021] In one embodiment, the spacer is further disposed between two adjacent first lenses.

[0022] In one embodiment, the spacer is further disposed between two adjacent second lenses.

[0023] In one embodiment, a gap between the bottom surface of the extending portion and the top surface of the receiving portion contains a bonding medium to fix the first group of units and the second group of units.

[0024] In one embodiment, the extension portion includes a protruding portion protruding downward, and the receiving portion includes a matching groove recessed downward, and when the extension portion overlaps the receiving portion, the protruding portion is located in the matching groove.

[0025] In one embodiment, the width of the bonding medium arranged in the radial direction is 0.05-1.5 mm.

[0026] In one embodiment, the area corresponding to the first receiving body and the receiving portion forms an effective exposure area of ​​the bonding medium, and the width of the exposure area is greater than or equal to 0.1 mm.

[0027] In one embodiment, the bonding medium is selected from one or more of: UV glue, thermosetting glue, UV thermosetting glue, and epoxy resin glue.

[0028] In one embodiment, the first bearing body of the first group unit has a reinforcing fixing groove, which corresponds to the position of the lowest lens among the first lenses and is used to accommodate an adhesive medium to reinforce and fix the lowest lens.

[0029] In one embodiment, the first bearing body of the first group unit has a reinforcement fixing area, and the reinforcement fixing hole penetrates the side wall of the first bearing body and is used to accommodate a bonding medium to reinforce and fix the first lens.

[0030] In one embodiment, when the first group of units is assembled with the second group of units, the center axis of the first group of units is offset from the center axis of the second group of units by 0 to 15 μm.

[0031] In one embodiment, when the first group of units is assembled with the second group of units, the central axis of the first group of units and the central axis of the second group of units have an inclination angle less than 0.5 degrees.

[0032] In one embodiment, when the first group of units and the second group of units are assembled, the first group of units and the second group of units are arranged in sequence along the same optical axis direction.

[0033] In one embodiment, when the first group of units is assembled with the second group of units, the optical axis direction of the first group of units is parallel to the optical axis direction of the second group of units.

[0034] In one embodiment, the number of at least one of the first group of lenses and the second group of lenses is two or more.

[0035] According to another aspect of the present application, a camera module with a multi-group lens is provided, which includes the multi-group lens as described above; and a photosensitive component, wherein the multi-group lens is located in the photosensitive path of the photosensitive component.

[0036] In one embodiment, the camera module includes a driving element, at least one of the group units of the multi-group lens is mounted to the driving element, and the driving element is mounted to the photosensitive component.

[0037] In one embodiment, the photosensitive component includes a photosensitive element, a circuit board and a lens holder, the photosensitive element is electrically connected to the circuit board, the lens holder is mounted on the circuit board, and the driving element is mounted on the lens holder to form an autofocus camera module.

[0038] In one embodiment, the photosensitive component includes a photosensitive element, a circuit board and a lens mount, the multiple groups of lenses are installed on the lens mount, the photosensitive element is electrically connected to the circuit board, and the lens mount is installed on the circuit board to form a fixed-focus camera module.

[0039] In one embodiment, the camera module includes a filter element, and the filter element is mounted on the lens holder.

[0040] According to another aspect of the present application, an electronic device is provided, which includes a device body; and a camera module as described above, wherein the camera module cooperates with the device body to realize image acquisition and reproduction.

[0041] In one embodiment, the electronic device is any one of a smart phone, a wearable device, a computer device, a television, a vehicle, a camera, and a monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Exemplary embodiments are shown in the referenced drawings. The embodiments and drawings disclosed herein are to be considered illustrative rather than restrictive.

[0043] Figure 1 is a schematic diagram showing a multi-group lens according to an embodiment of the present application;

[0044] Figure 2 It is shown Figure 1 An enlarged schematic diagram of the dotted line portion in FIG.

[0045] Figure 3 is a schematic diagram showing a multi-group lens according to another embodiment of the present application;

[0046] Figure 4 It is shown Figure 3 An enlarged schematic diagram of the dotted line portion in FIG.

[0047] Figure 5 is a schematic diagram showing a multi-group lens according to another embodiment of the present application, wherein details of a dotted line portion are shown in an enlarged schematic diagram;

[0048] Figure 6 is a schematic diagram showing a multi-group lens according to a modified embodiment of the present application, wherein details of the dotted line portion are shown in an enlarged schematic diagram;

[0049] Figure 7 is a schematic diagram showing a multi-group lens according to a modified embodiment of the present application, wherein details of the dotted line portion are shown in an enlarged schematic diagram;

[0050] Figure 8is a schematic diagram showing a camera module composed of multiple groups of lenses according to an embodiment of the present application; and

[0051] Fig. 9 It is a schematic diagram showing the application of a camera module with multiple group lenses according to an embodiment of the present application. DETAILED DESCRIPTION

[0052] In order to better understand the present application, a more detailed description will be made of various aspects of the present application with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0053] It should be noted that in this specification, the expressions first, second, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Therefore, without departing from the teaching of this application, the first group unit described below can also be referred to as the second group unit.

[0054] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0055] It should also be understood that the terms "including", "having" and / or "comprising" when used in this specification indicate the presence of the stated features, wholes, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, parts and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application". And, the term "exemplary" is intended to refer to an example or illustration.

[0056] As used herein, the terms "substantially," "approximately," and similar terms are used as terms of approximation, not degree, and are intended to account for the inherent variations in measurements or calculations that would be recognized by one of ordinary skill in the art.

[0057] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0058] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. In all drawings and text descriptions, the same reference numerals represent the same elements, and therefore, their descriptions will not be repeated.

[0059] It should be understood that in the present application, the orientation or position relationship indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside" or "outside" is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0060] Figure 1 A multi-group lens 100 according to an embodiment of the present application is shown. Figure 2 To show Figure 1 The enlarged schematic diagram of the dotted line part in FIG. Figure 1 As shown, the multi-group lens 100 may include a first group unit 11 and a second group unit 12. For ease of description, only two group units are shown in this embodiment, but the present application is not limited thereto, and the multi-group lens may include two or more than two group units. It should be understood that Figure 1 The first group unit 11 shown in the figure may be referred to as an upper group unit, and the second group unit 12 may be referred to as a lower group unit.

[0061] The first group unit 11 may include a first carrier body 1121 and at least one first lens 111 accommodated in the first carrier body 1121. The first carrier body 1121 is a hollow structure so as to accommodate and install each lens and arrange it along the light path. The carrier body may include all other structures other than optical lenses. The first lens 111 is arranged in the first carrier body 1121 in sequence according to the light path. In this embodiment, the first lens 111 may include three lenses, namely, the top lens 1111, the middle lens 1112 and the bottom lens 1113. However, the present application is not limited thereto, and the number of the first lenses 111 may be 1, 2, 3 or more than 3.

[0062] The second group unit 12 may include a second carrier body 1221 and at least one second lens 121 accommodated in the second carrier body 1221. The second carrier body 1221 is a hollow structure so as to accommodate and install each lens and arrange it along the light path. The second lenses 121 are arranged in the first carrier body 1221 in sequence according to the light path. In this embodiment, the first lens 121 may include three lenses, namely, the top lens 1211, the middle lens 1212 and the bottom lens 1213. However, the present application is not limited thereto, and the number of the first lenses 121 may be 1, 2, 3 or more than 3.

[0063] The second group unit 12 may further include a receiving portion 1222 connected to the second carrier body 1221. The receiving portion 1222 is connected to (e.g., integrally connected to) the second carrier body 1221 so as to cooperate with the first carrier body 1121 of the first group unit 11 and to receive the first carrier body 1121 or the first lens 121 of the first group unit 11. The receiving portion 1222 may be a hollow structure extending inwardly so as to provide a lap support position for the first group unit 11 and provide a light path for each second lens 121 located in the second carrier body 1221.

[0064] like Figure 1 As shown, when the first group unit 11 and the second group unit 12 are assembled, there may be an adjustable gap between the first bearing body 1121 in the first group unit 11 and the receiving portion 1222 of the second group unit 12, thereby providing a space for left-right adjustment of the first group unit 11 and the second group unit 12. In one embodiment, there may be an adjustable gap S1 between the outer circumference of the first bearing body 1121 in the first group unit 11 and the inner circumference of the receiving portion 1222 of the second group unit 12 (see Figure 1 Schematic diagram of the enlarged dotted line part in FIG.

[0065] like Figure 1 As shown, when the first group unit 11 and the second group unit 12 are assembled, an adjustable gap S3 may exist between the first carrier body 1121 and the bottom surface of the lowest lens 1113 in the first lens 111 and the top surface of the highest lens 1211 in the second lens 121 (see Figure 1), thereby providing space for the first group unit 11 and the second group unit 12 to adjust up and down. According to this embodiment, there may be an adjustable gap between the outer circumference of the first carrier body 1121 and the inner circumference of the receiving portion 1222, and between the bottom surface of the lowest lens 1113 in the first lens 111 and the top surface of the highest lens 1211 in the second lens 121. By reserving an adjustable gap before assembly, six degrees of freedom of adjustment space can be provided for the first group unit and the second group unit during the assembly process.

[0066] It should be understood that the first group unit 11 and the second group unit 12 can be assembled together in various ways. In one embodiment, the first group unit 11 and the second group unit 12 can be arranged in sequence along the same optical axis. In one embodiment, when the group units are assembled, the optical axis direction of the lens in the first group unit 11 can be parallel to the optical axis direction of the lens in the second group unit 12.

[0067] In one embodiment, after the first group unit 11 and the second group unit 12 are assembled together, the central axis of the first group unit 11 and the central axis of the second group unit 12 may be offset from each other by 0 to 15 μm. Figure 1 For the convenience of measurement, the central axis of the first group unit 11 can be understood as the central axis of the optical surface 1101 in the first group unit 11 that is closest to the second group unit 12; it can also be understood as the central axis defined by the structural surface 1102 of the lens 1113 that is closest to the second group unit 12. When the bottom lens 1113 of the first group unit 11 is tightly matched with the first supporting body 1121 (such as a lens barrel), the central axis of the first group unit 11 can also be understood as the central axis defined by the inner side surface of the first supporting body.

[0068] Similarly, for the convenience of measurement, the central axis of the second group unit 12 can be understood as the central axis of the optical surface 1201 in the second group unit 12 that is closest to the first group unit 11; it can also be understood as the central axis defined by the structural surface 1202 of the uppermost lens 1211 that is closest to the first group unit 11. When the uppermost lens 1211 of the second group unit 12 and the second supporting body 1221 (for example, a lens barrel) are tightly matched, the central axis of the second group unit 12 can also be understood as the central axis defined by the inner side surface of the second supporting body.

[0069] In one embodiment, the central axis of the first group of units 11 and the central axis of the second group of units 12 may have an inclination angle less than 0.5 degrees.

[0070] See also Figure 1, the first group unit 11 may further include an extension portion 1122 extending outward from the first bearing body 1121. The extension portion 1122 may extend outward from the outside of the first bearing body 1121 so as to overlap the receiving portion 1222 of the second group unit 12. The extension portion 1122 extends outward from the outside of the first bearing body 1121 as a whole. In some embodiments, the extension portion 1122 may be an annular shape surrounding the first bearing body 1121, extending outward from the first bearing body 1121 to form an annular brim structure, so as to overlap the receiving portion 1222 of the second group unit 12 through the annular brim structure, thereby providing stable support for the first group unit 11.

[0071] See also Figure 1 There may be an adjustable gap S2 between the bottom surface of the extension portion 1122 of the first group unit 11 and the top surface of the receiving portion 1222 of the second group unit 12 (see Figure 1 ). When the first group unit 11 and the second group unit 12 are assembled, an adhesive medium can be contained in the adjustable gap to stably fix the first group unit 11 and the second group unit 12 so that the relative positions of the two are fixed. The adhesive medium is, for example, UV glue, thermosetting glue, UV thermosetting glue, epoxy resin glue, but the present application is not limited thereto. In one embodiment, the width of the adhesive medium arranged in the radial direction can be 0.05 to 1.5 mm. Here, the radial direction refers to the direction perpendicular to the optical axis direction of the lens. For example, in Figure 1 In the illustrated embodiment, the width may be the projection width of the bonding medium applied in the gap S2 in the horizontal direction.

[0072] It should be understood that the first group unit 11 and the second group unit 12 may be fixed by other means, such as heat welding, ultrasonic welding, laser welding, etc., and the present application is not limited thereto in this regard.

[0073] See also Figure 1 , the first group unit 11 may include at least one spacer 113, which is arranged in conjunction with each first lens 111 to constrain the light passing through the first lens 111 and provide a predetermined light path. The top lens 1111, the middle lens 1112, and the bottom lens 1113 of the first lens 111 are arranged from top to bottom along the light path in the first carrier body 1121. In this embodiment, two spacers 113 are arranged in the first group unit 11, which are respectively arranged between the top lens 1111 and the middle lens 1112, and between the middle lens 1112 and the bottom lens 1113. The spacer 113 can also be arranged on the first lens 111 in the form of a coating.

[0074] In one embodiment, the spacer 113 can be disposed at the lower portion of the lowest lens 1113 of the first lens 111, so that when the first group unit and the second group unit are assembled, an adjustable gap exists between the bottom surface of the spacer 113 and the uppermost lens 1211 of the second lens 121 and the top surface of the receiving portion 1222.

[0075] See also Figure 1 , the second group unit 12 may include at least one spacer 123, which is arranged in conjunction with the second lens 121 to restrict the light passing through the lens and provide a predetermined light path. In this embodiment, three spacers 123 are arranged in the second group unit 12, which are respectively arranged on the upper part of the top lens 1211 in the second lens 121, between the top lens 1211 and the middle lens 1212, and between the middle lens 1212 and the bottom lens 1213. One spacer 123 is arranged on the upper part of the top lens 1211 in the second lens 121, so that there is an adjustable gap between the bottom surface of the spacer 123 and the top surface of the top lens 1211 and the receiving portion 1222.

[0076] In the present application, the adjustable gap is set according to the optical properties of the first lens and the second lens. By setting and reserving the adjustable gap before assembly, six degrees of freedom can be adjusted when the first group unit and the second group unit are assembled. In the process of assembling each group unit to form a multi-group lens, the overall optical performance of each lens in the multi-group lens can be adjusted by active calibration, so that the adjustable gap is formed into a solidification gap. When the multi-group lens is mass-produced, the solidification gap of each product may be different.

[0077] In one embodiment, the size of the curing gap is such that the first group unit can be tilted relative to the second group unit at an angle less than or equal to 0.5°. It should be understood that the above-mentioned tilt angle may include the tiltable angle of six degrees of freedom of the first group unit relative to the second group unit in three-dimensional space. The six degrees of freedom refer to the degrees of freedom of movement along the three coordinate axes of x, y, and z and the degrees of freedom of rotation around these three coordinate axes in three-dimensional space.

[0078] See also Figure 1The first group unit 11 further comprises a reinforcing fixing groove 112112 at the lower part of the first carrier body 1121, corresponding to the lower lens of the first lens, which is used to accommodate the adhesive medium 13 to reinforce and fix the first lens 111 at the bottom, such as the bottom lens 1113. In one embodiment, the reinforcing fixing groove 112112 may correspond to the outermost first lens 111. For example, when there are two lenses (such as an upper lens and a lower lens) in the first carrier body 1121, the reinforcing fixing groove 112112 may reinforce and fix the lower lens. When there are four lenses in the first carrier body 1121, the reinforcing fixing groove 112112 may reinforce and fix the fourth lens at the bottom.

[0079] Preferably, in some embodiments, the reinforcing fixing grooves 112112 are symmetrically distributed at the lower end of the first carrier body 1121, so as to provide uniform force for the corresponding first lens 111, and prevent uneven force on the first lens 111 when the bonding medium 13 is affected by the environment and changes, such as uneven force when the bonding medium 13 expands due to heat.

[0080] The reinforcement fixing grooves 112112 can be designed into different shapes according to requirements, and their cross-sectional shapes are, for example, wedge-shaped, triangular, trapezoidal, rectangular, etc. The reinforcement fixing grooves 112112 can be separately spaced or connected, that is, forming an integral annular groove, and the cross-sectional shapes of the annular grooves can be different shapes.

[0081] Preferably, the depth of the reinforcement fixing groove 112112 is less than the thickness of the edge of the corresponding lowermost lens, so as to prevent the existence of a gap between the reinforcement fixing groove 112112 and the top edge of the lens, thereby preventing the glue from entering the interior of the lens through the gap.

[0082] In this embodiment and Figure 1 In the embodiment, the reinforcement fixing grooves 112112 are of a trapezoidal structure, and the four reinforcement fixing grooves 112112 are symmetrically distributed. Of course, in other embodiments of the present application, the reinforcement fixing grooves 112112 may also be of other shapes and other numbers, such as three, five, and more than five, etc., and the present application is not limited thereto.

[0083] In one embodiment, the reinforcing fixing groove 112112 may also be an annular structure (not shown), and the inner wall of the annular structure may be inclined to facilitate the application of the bonding medium 13. That is, the reinforcing fixing groove 112112 may provide a relatively large opening, so that the bonding medium 13 may be added conveniently by, for example, a needle to avoid contaminating the surface of the corresponding first lens 111, and the bonding medium 13 may flow along the inclined annular structure to the side edge of the corresponding first lens 111, so as to be stably fixed from the side edge of the first lens 111.

[0084] In one embodiment, the depth of the reinforcement fixing groove may be greater than or equal to 0.15 mm. In one embodiment, the opening width of the reinforcement fixing groove may be greater than or equal to 0.2 mm. In one embodiment, the wall thickness corresponding to the reinforcement fixing groove may be greater than or equal to 0.1 mm.

[0085] In one embodiment, the first carrier body 1121 of the first group unit 11 may include a reinforcing fixing area (not shown) penetrating a side wall of the first carrier body 1121 for accommodating the adhesive medium 13 to reinforce and fix the first lens 111 .

[0086] Figure 3 FIG. 1 shows a multi-group lens 100 according to another embodiment of the present application. Figure 4 To show Figure 3 The enlarged schematic diagram of the dotted line part in FIG. Figure 3 and Figure 4 As shown, the multi-group lens 100 may include a first group unit 11 and a second group unit 12 .

[0087] The first group unit 11 may include a first carrier body 1121 and at least one first lens 111 accommodated in the first carrier body 1121. The first lens 111 may include three lenses, namely, an uppermost lens 1111, a middle lens 1112, and a lowermost lens 1113. The second group unit 12 may include a second carrier body 1221 and at least one second lens 121 accommodated in the second carrier body 1221. The first lens 121 may include three lenses, namely, an uppermost lens 1211, a middle lens 1212, and a lowermost lens 1213.

[0088] The second group unit 12 may further include a receiving portion 1222 connected to the second supporting body 1221, so as to cooperate with the first supporting body 1121 of the first group unit 11, and to receive the first supporting body 1121 or the first lens 121 of the first group unit 11. The first group unit 11 may further include an extending portion 1122 extending outward from the first supporting body 1121, so as to overlap the receiving portion 1222 of the second group unit 12.

[0089] In addition to the extension portion 1122 and the receiving portion 1222, Figure 3 The multiple group lenses 100 shown in FIG. Figure 1 The multiple group lenses 100 shown in FIG. 1 are substantially the same, and thus redundant description of other components is omitted.

[0090] like Figure 3 and Figure 4As shown, the extension portion 1122 of the first carrier body 1121 may include a protruding portion 11222 protruding downward, and the receiving portion 1222 of the second group unit 12 includes a matching groove 12221 recessed downward. When the extension portion 1122 overlaps the receiving portion 1222, the protruding portion 11222 may be located in the matching groove 12221, and a gap may exist between the protruding portion 11222 and the matching groove 12221.

[0091] In this embodiment, when the first group unit 11 and the second group unit 12 are assembled, an adjustable gap 14 may exist between the outer circumference of the first bearing body 1121 in the first group unit 11 and the inner circumference of the receiving portion 1222 of the second group unit 12, thereby providing a left-right adjustment space for the first group unit 11 and the second group unit 12. An adjustable gap may exist between the first bearing body 1121 and the bottom surface of the lowest lens 1113 in the first lens 111 and the top surface of the highest lens 1211 in the second lens 121, thereby providing a vertical adjustment space for the first group unit 11 and the second group unit 12. By reserving an adjustable gap before assembly, six degrees of freedom of adjustment space can be provided for the first group unit and the second group unit during the assembly process.

[0092] In one embodiment, the matching groove 12221 can contain the bonding medium 13 to fix the first group unit 11 and the second group unit 12. The protrusion 11222 can be formed into an annular structure, and the matching groove 12221 can also be formed into an annular structure, so as to be assembled in cooperation with each other.

[0093] In one embodiment, the width of the mating groove 12221 may be greater than the thickness of the protrusion 11222 of the extension portion 1122, thereby providing sufficient adjustment space for the first group unit 11 and sufficient accommodation space for the bonding medium 13, so that the first group unit 11 and the second group unit 12 are stably fixed.

[0094] See also Figure 3 and Figure 4 The upper outer side of the receiving portion 1222 also includes a boss 12223 extending upward to block the bonding medium 13 from flowing inward or outward, thereby preventing the bonding medium 13 from contaminating the internal lens or affecting the overall appearance.

[0095] Further, preferably, the top end of the outer mating wall 12223 is higher than the inner mating wall 12222, thereby preventing the adhesive medium 13 contained in the upper mating groove 12221 from overflowing to the outside, so as to ensure a neat appearance.

[0096] In this embodiment, a reinforcement fixing groove 112112 is further provided at the lower portion of the first supporting body 1121 of the first group unit 11, corresponding to the lower lens of the first lens, and the reinforcement fixing groove is used to accommodate the adhesive medium 13 to reinforce and fix the first lens 111 at the bottom, such as the lowermost lens 1113.

[0097] Figure 5 FIG. 1 shows a multi-group lens 100 according to another embodiment of the present application. Figure 5 As shown, the multi-group lens 100 may include a first group unit 11 and a second group unit 12. The first group unit 11 may include a first carrier body 1121 and at least one first lens 111 accommodated in the first carrier body 1121. The first lens 111 may include three lenses, namely, an uppermost lens 1111, a middle lens 1112, and a lowermost lens 1113.

[0098] The second group unit 12 may include a second carrier body 1221 and at least one second lens 121 accommodated in the second carrier body 1221. The first lens 121 may include three lenses, namely, an uppermost lens 1211, a middle lens 1212 and a lowermost lens 1213.

[0099] In addition to the receiving part and the extension part, Figure 5 The multiple group lenses 100 shown in FIG. Figure 1 The multiple group lenses 100 shown in FIG. 1 are substantially the same, and thus redundant description of other components is omitted.

[0100] In this embodiment, the second group unit 12 may further include a receiving portion 1222E connected to the second supporting body 1221 to cooperate with the first supporting body 1121 of the first group unit 11 and receive the first supporting body 1121 of the first group unit 11 .

[0101] The receiving portion 1222E of the second group unit 12 is a hollow structure extending inward. The lower end of the first receiving body 1121 extends to the receiving portion 1222E of the second group unit 12, thereby constraining the relative positions of the first group unit 11 and the second group unit 12.

[0102] When the first group unit 11 and the second group unit 12 are assembled, there is a gap between the side surfaces of the first supporting body 1121 and the receiving portion 1222E, that is, the outer circumference of the first supporting body 1121 and the inner circumference of the receiving portion 1222E. Figure 5 As shown, an adhesive medium 13 may be applied into the gap to fix the first group unit 11 and the second group unit 12. The first receiving body 1121 may also be fixed to the second group unit 12 by welding, such as laser welding or ultrasonic welding.

[0103] In addition, when the first group unit 11 and the second group unit 12 are assembled, an adjustable gap may exist between the first carrier body 1121 and the bottom surface of the lowest lens 1113 in the first lens 111 and the top surface of the highest lens 1211 in the second lens 121. In the present application, the adjustable gap is set according to the optical properties of the first lens and the second lens. By setting and reserving the adjustable gap before assembly, six degrees of freedom can be adjusted when the first group unit and the second group unit are assembled.

[0104] Figure 6 A modified embodiment of the multi-group lens 100 according to the present application is shown, including an enlarged schematic diagram of the dotted line portion. In this figure, the lens and the lens barrel are not clearly distinguished to show the relationship between the first group unit and the second group unit in the case of a complete lens.

[0105] In this embodiment, the first lens 111 includes only one lens, that is, the lens can be regarded as the lowermost lens in the first lens 111. The second lens 121 includes only one lens, that is, the lens can be regarded as the uppermost lens in the second lens 121 in this embodiment.

[0106] In this embodiment, the bottom surface of the extension portion 1122 of the first group unit 11 is flat, and the upper surface of the receiving portion 1222 of the second group unit 12 is also flat, which does not include Figure 4 The extension portion 1122 can overlap the receiving portion 1222, such as Figure 6 As shown in the enlarged schematic diagram of , an adjustable gap may exist between the bottom surface of the extending portion 1122 and the receiving portion 1222 .

[0107] In one embodiment, the gap between the bottom surface of the extension part 1122 and the receiving part 1222 can contain the bonding medium 13 to fix the first group unit 11 and the second group unit 12 to each other. In this embodiment, the bottom surface of the extension part extending from the side of the first receiving body 1121 and the surface of the receiving part 1222 of the second group 12 are matched and adjusted.

[0108] In this embodiment, when the first group unit 11 and the second group unit 12 are assembled, there is an adjustable gap between the first carrier body 1121 and the receiving portion 1222 of the second group unit 12. The adjustable gap includes: in the portion where the first carrier body 1121 overlaps the receiving portion 1222 of the second group unit 12, the gap between the bottom surface of the first carrier body 1121 and the top surface of the receiving portion 1222, and the gap between the side surfaces of the first carrier body 1121 opposite to the receiving portion 1222. In addition, there may also be an adjustable gap between the bottom surface of the first carrier body 1121 and the top surface of the second lens 121, and between the bottom surface of the first lens 111 and the top surface of the second lens 121.

[0109] like Figure 6 As shown, the spacer 113 can be arranged below the first lens 111, so that when the first group unit 11 and the second group unit 12 are assembled, there can be an adjustable gap between the bottom surface of the spacer 113 and the top surface of the second lens 121. The above adjustable gap is set according to the optical properties of the first lens 111 and the second lens 121. By setting and reserving the adjustable gap before assembly, when the first group unit 11 and the second group unit 12 are assembled, six degrees of freedom of adjustment space can be provided for the first group unit and the second group unit.

[0110] In the gap between the first carrier body 1121 and the receiving portion 1222 of the second carrier body 1221, a bonding medium can be applied to fix the first group unit 11 and the second group unit 12, so that the relative position of the two is fixed. In the process of assembling each group unit to form a multi-group lens, the overall optical performance of each lens in the multi-group lens can be adjusted by active calibration, so that the adjustable gap is formed into a solidified gap.

[0111] Figure 7 A modified implementation of the multi-group lens 100 according to the present application is shown, including an enlarged schematic diagram of the dotted line portion.

[0112] In this embodiment, the first lens 111 includes only one lens, that is, the lens can be regarded as the bottom lens of the first lens 111. The second lens 121 includes only one lens, that is, in this embodiment, the lens can be regarded as the top lens of the second lens 121. The receiving portion 1222 of the second group unit 12 is connected to the second receiving body 1221 and extends to the inside of the second receiving body 1221, so as to provide overlapping support for the first group unit 11 and the first lens 111, and provide a light path for the second lens 121 located in the second supporting body 1221.

[0113] In this embodiment, the receiving portion 1222 of the second carrier body 1221 receives the first carrier body 1121 and the first lens 111. When the first group unit 11 and the second group unit 12 are assembled, there may be an adjustable gap between the bottom surface of the first carrier body 1221 and the top surface of the receiving portion 1222, between the bottom surface of the first lens 111 and the top surface of the receiving portion 1222, and between the bottom surface of the first lens 111 and the top surface of the second lens 121. The above adjustable gap is set according to the optical properties of the first lens 111 and the second lens 121. By setting and reserving the adjustable gap before assembly, when the first group unit 11 and the second group unit 12 are assembled, six degrees of freedom of adjustment space can be provided for the first group unit and the second group unit.

[0114] In the gap between the first carrier body 1121 and the receiving portion 1222 of the second carrier body 1221, a bonding medium can be applied to fix the first group unit 11 and the second group unit 12, so that the relative position of the two is fixed. In the process of assembling each group unit to form a multi-group lens, the overall optical performance of each lens in the multi-group lens can be adjusted by active calibration, so that the adjustable gap is formed into a solidified gap.

[0115] In the above-mentioned embodiments, different structures are described by taking the multi-group lens 100 composed of two group units as an example. It should be understood that in other embodiments, the multi-group lens 100 can be assembled by three or more group units, and the assembly method can be a combination of different embodiments, and is not limited to one assembly method.

[0116] Figure 8 A camera module 1 composed of a multi-group lens 100 according to a preferred embodiment of the present application is shown. The camera module 1 may be an autofocus camera module. In one embodiment, the camera module 1 may also be a fixed-focus camera module. The camera module 1 may include a multi-group lens 100, a photosensitive component 200, and a driving element 300. The multi-group lens 100 is located in the photosensitive path of the photosensitive component 200, so that the photosensitive component 200 is photosensitive to obtain image information. The multi-group lens 100 is mounted on the driving element 300 so as to adjust the focal length of the camera module 1 by adjusting the multi-group lens 100. The multi-group lens 100 may be a multi-group lens according to various embodiments of the present application. The driving element 300 may be, for example, but not limited to, a voice coil motor, a piezoelectric motor, etc. The driving element 300 is electrically connected to the photosensitive component 200.

[0117] In this embodiment, the photosensitive component 200 may include a photosensitive element 201, a circuit board 202, and a lens holder 203. The photosensitive element 201 is electrically connected to the circuit board 202, for example, by being disposed on the circuit board 202 in a surface mounting manner, and is electrically connected to the circuit board 202 through an electrical connection line. The lens holder 203 is mounted on the circuit board 202. The driving element 300 is mounted on the lens holder 203, so that the plurality of group lenses 100 are located in the light sensing path of the photosensitive element 201.

[0118] The camera module 1 may further include a filter element 400, which is mounted on the lens holder 203 so as to be located between the multi-group lens 100 and the photosensitive element 201. That is, the light entering from the multi-group lens 100 is filtered by the filter element 400 before reaching the photosensitive element 201. The filter element 400 may be, for example, but not limited to, an infrared cutoff filter or a blue glass filter.

[0119] Reference Fig. 9 The multiple groups of lenses 100 can be assembled and applied to different types of camera modules 1, and the camera module 1 can be applied to electronic devices 2, such as but not limited to smart phones, wearable devices, computer devices, televisions, vehicles, cameras, monitoring devices, etc. The electronic device 2 can include an electronic device body 3, and the camera module 1 can be installed in the electronic device body 3 to complete the image acquisition and reproduction in cooperation with the electronic device body 3.

[0120] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of application involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the application. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other to form a technical solution.

Claims

1. A multi-group lens, characterized in that: include: The first group unit comprises a first carrying body and at least one first lens accommodated in the first carrying body; as well as The second group unit includes a second carrying body, at least one second lens accommodated in the second carrying body, and a receiving portion connected to the second carrying body, wherein the receiving portion is a hollow structure extending inwardly; Wherein, when the first group unit and the second group unit are assembled, there is an adjustable gap between the first bearing body and the receiving portion, and between the first bearing body and the bottom surface of the lowest lens of the first lenses and the top surface of the highest lens of the second lenses. By reserving the adjustable gap before assembly, an adjustment space with six degrees of freedom is provided for the first group unit and the second group unit during the assembly process; the adjustable gap is formed as a solidification gap, and the size of the solidification gap is such that the central axis of the first group unit can be tilted at an angle of less than or equal to 0.5° relative to the central axis of the second group unit in six degrees of freedom; The lower end of the first receiving body extends to the hollow structure of the receiving portion, a gap exists between the first bearing body and the opposite side of the receiving portion, and an adhesive medium is applied to the gap; and The lower end of the first bearing body of the first group unit is symmetrically provided with reinforcement fixing grooves, which correspond to the position of the lowest lens in the at least one first lens and are used to accommodate the adhesive medium to reinforce and fix the lowest lens.

2. The multi-group lens according to claim 1, wherein: There is an adjustable gap between the outer circumference of the first bearing body and the inner circumference of the receiving portion.

3. The multi-group lens according to claim 1, wherein: An adjustable gap exists between the bottom surface of the first bearing body and the top surface of the receiving portion.

4. The multi-group lens according to claim 3, wherein: An adjustable gap exists between the bottom surface of the lowest lens in the first lenses and the top surface of the receiving portion in the second group unit.

5. The multi-group lens according to claim 1, wherein: The first group unit further includes an extending portion extending outward from the first carrying body, and an adjustable gap exists between a bottom surface of the extending portion and a top surface of the receiving portion.

6. The multi-group lens according to claim 1, wherein the first group unit comprises at least one spacer, the spacer is arranged in conjunction with the first lens to provide a predetermined light path, wherein: One of the spacers is disposed at the lower part of the lowest lens of the first lenses, and an adjustable gap exists between the bottom surface of the one spacer and the uppermost lens of the second lens and the top surface of the receiving portion.

7. The multi-group lens according to claim 1, wherein the second group unit comprises at least one spacer, the spacer is arranged in conjunction with the second lens to provide a predetermined light path, wherein: One of the spacers is disposed on the upper portion of the uppermost lens of the second lenses, and an adjustable gap exists between the bottom surface of the lowermost lens of the first lenses and the top surface of the one spacer.

8. The multi-group lens according to any one of claims 1 to 7, wherein: The overall optical performance of the multiple groups of lenses is adjusted by active calibration, and the adjustable gap is formed as a solidified gap.

9. The multi-group lens according to claim 6, wherein: The spacer is also arranged between two adjacent first lenses.

10. The multi-group lens according to claim 7, wherein: The spacer is also arranged between two adjacent second lenses.

11. The multi-group lens according to claim 5, wherein: The gap between the bottom surface of the extending portion and the top surface of the receiving portion accommodates an adhesive medium so as to fix the first group of units and the second group of units.

12. The multi-group lens according to claim 5, wherein: The extending portion includes a protruding portion protruding downward, and the receiving portion includes a matching groove recessed downward. When the extending portion overlaps the receiving portion, the protruding portion is located in the matching groove.

13. The multi-group lens according to claim 11, wherein: The width of the bonding medium arranged in the radial direction is 0.05 to 1.5 mm. 14 . The multi-group lens according to claim 11 , wherein the area corresponding to the first receiving body and the receiving portion forms an effective exposure area of ​​the bonding medium, and the width of the exposure area is greater than or equal to 0.1 mm. 15 . The multi-group lens according to claim 11 , wherein the bonding medium is selected from one or more of: UV glue, thermosetting glue, UV thermosetting glue, and epoxy resin glue.

16. The multi-group lens according to claim 1, wherein the first carrier body of the first group unit has a reinforcement fixing area, and the reinforcement fixing hole penetrates the side wall of the first carrier body for accommodating an adhesive medium to reinforce and fix the first lens.

17. The multi-group lens according to claim 8, wherein: The central axis of the first group of units is offset from the central axis of the second group of units by 0-15 μm.

18. The multi-group lens according to claim 1, wherein: When the first group of units and the second group of units are assembled, the first group of units and the second group of units are sequentially arranged along the same optical axis direction.

19. The multi-group lens according to claim 1, wherein: When the first group of units is assembled with the second group of units, the optical axis direction of the first group of units is parallel to the optical axis direction of the second group of units. 20 . The multi-group lens according to claim 1 , wherein the number of at least one of the first group lens and the second group lens is two or more.

21. A camera module with multiple group lenses, characterized in that: include: The multi-group lens as claimed in any one of claims 1 to 20; as well as A photosensitive component, wherein the plurality of lens groups are located in a photosensitive path of the photosensitive component.

22. The camera module according to claim 21, wherein the camera module comprises a driving element, at least one of the group units of the multi-group lens is mounted to the driving element, and the driving element is mounted to the photosensitive component.

23. The camera module according to claim 22, wherein the photosensitive component comprises a photosensitive element, a circuit board and a lens mount, the photosensitive element is electrically connected to the circuit board, the lens mount is mounted on the circuit board, and the driving element is mounted on the lens mount, so as to form an autofocus camera module.

24. The camera module according to claim 21, wherein the photosensitive component comprises a photosensitive element, a circuit board and a lens mount, the multiple groups of lenses are mounted on the lens mount, the photosensitive element is electrically connected to the circuit board, and the lens mount is mounted on the circuit board, to form a fixed-focus camera module.

25. The camera module according to claim 23 or 24, wherein the camera module comprises a filter element, and the filter element is mounted on the lens holder.

26. An electronic device, characterized in that include: Equipment body; and The camera module as described in any one of claims 21 to 25, wherein the camera module cooperates with the device body to realize image acquisition and reproduction.

27. The electronic device according to claim 26, wherein: The electronic device is any one of a smart phone, a wearable device, a computer device, a television, a vehicle, a camera, and a monitoring device.

Images