Optical lens, lens module, and electronic device

Abstract

The present application provides an optical lens, a lens module, and an electronic device. The optical lens comprises a lens barrel and a lens group, a first part of lenses in the lens group is located in the lens barrel, at least part of a second part of lens in the lens group is located outside the lens barrel, and the second part of lens comprises a lens having the largest size in the lens group. According to the present application, at least part of the lens having the largest size in the optical lens is exposed without being surrounded by the lens barrel, so that the size of the lens barrel can be reduced, thereby reducing the size and the weight of the optical lens; and in addition, the material of the lens barrel can be reduced, thus saving the cost.

Description

Optical lenses, lens modules and electronic equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on December 8, 2023, with application number 202311682772.3 and application name “Optical lens, lens module and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of camera technology, and in particular to an optical lens, a lens module, and an electronic device. Background Art

[0003] As the lens module's demand for more light input increases, the aperture and target area are increasing. However, the product's peripheral dimensions are limited, so the demand for lens module size reduction is increasing.

[0004] Summary of the Invention

[0005] The present application provides an optical lens, a lens module, and an electronic device, which can reduce the size of the optical lens.

[0006] In a first aspect, an optical lens is provided, comprising: a lens barrel and a lens group, wherein a first portion of the lenses in the lens group are located inside the lens barrel, at least a portion of the second portion of the lenses in the lens group are located outside the lens barrel, and the second portion of the lenses includes the largest lens in the lens group.

[0007] It should be understood that the optical lens in the embodiments of the present application can be a fixed focal length lens, a zoom lens, or a short-focus lens, a telephoto lens, a periscope lens, etc., and the present application does not impose any restrictions on this.

[0008] It should be noted that if the second portion of lenses in the lens group is a single lens, then “at least a portion of the second portion of lenses in the lens group is located outside the lens barrel” can be understood as: the second portion of lenses in the lens group is completely exposed outside the lens barrel, or, a portion of the second portion of lenses in the lens group is exposed outside the lens barrel, and the other portion of the second portion of lenses in the lens group is accommodated inside the lens barrel. If the second portion of lenses in the lens group consists of multiple lenses, then “at least a portion of the second portion of lenses in the lens group is located outside the lens barrel” can be understood as: at least a portion of the lenses in the second portion of lenses that are connected to the lens barrel is located outside the lens barrel, that is, a portion of the lenses in the second portion of lenses that are connected to the lens barrel is exposed outside the lens barrel, and the other portion of the lenses in the second portion of lenses that are connected to the lens barrel is accommodated inside the lens barrel.

[0009] In the embodiment of the present application, by exposing at least part of the largest lens in the optical lens without being surrounded by a lens barrel, the size of the lens barrel can be reduced, thereby reducing the size and weight of the optical lens. In addition, the material of the lens barrel can also be reduced, saving costs.

[0010] In a possible implementation, the second portion of lenses in the lens group may be one lens.

[0011] For example, the second lens group includes a first lens, the first lens being the lens closest to the image side in the lens group, or the first lens being the lens closest to the object side in the lens group, and the first lens being fixedly connected to the lens barrel. It should be understood that if the optical lens is mounted upright, the first lens may be the lens closest to the image side in the lens group. If the optical lens is mounted in reverse, the first lens may be the lens closest to the object side in the lens group.

[0012] In this case, the first lens may be completely exposed outside the lens barrel; or a portion of the first lens may be exposed outside the lens barrel, and another portion of the first lens may be accommodated inside the lens barrel.

[0013] It should be understood that the first lens is the largest lens in the lens group. By exposing at least part of the largest lens in the optical lens without being surrounded by a lens barrel, the size of the optical lens can be reduced.

[0014] In some implementations, the first lens includes a first optical zone and a first fixed zone, the first optical zone is the area through which light passes, the first fixed zone is located on the periphery of the first optical zone, the first fixed zone is provided with a first matching portion, the lens barrel is provided with a first limiting portion, and the first matching portion is engaged with the first limiting portion.

[0015] In the present application, the first lens that is at least partially exposed outside the lens can be limited by a locking structure, and the first lens can be restricted to a preset position, thereby achieving optical alignment of multiple lenses in the lens group.

[0016] In some implementations, the first limiting portion includes a recess, the first matching portion includes a protrusion arranged toward the object side, and the protrusion of the first matching portion is accommodated in the recess of the first limiting portion, and / or the first limiting portion includes a protrusion arranged toward the object side, the first matching portion includes a recess, and the protrusion of the first limiting portion is accommodated in the recess of the first matching portion.

[0017] In some implementations, the first lens and the lens barrel may be connected by laser welding, glue bonding, or solvent welding.

[0018] In another possible implementation, the second portion of lenses in the lens group may be a plurality of lenses.

[0019] For example, the second lens group includes a first lens and a second lens, wherein the first lens is the lens closest to the image side in the lens group, or the first lens is the lens closest to the object side in the lens group, the second lens is adjacent to the first lens, the second lens is fixedly connected to the lens barrel, and the first lens is fixedly connected to the second lens. It should be understood that if the optical lens is mounted upright, the first lens can be the lens closest to the image side in the lens group. If the optical lens is mounted inverted, the first lens can be the lens closest to the object side in the lens group. It should also be understood that the second lens is the lens adjacent to the first lens.

[0020] In this case, the first lens is completely exposed outside the lens barrel, and the second lens can be completely exposed outside the lens barrel; or, a portion of the second lens is exposed outside the lens barrel, and another portion of the second lens is accommodated inside the lens barrel.

[0021] It should be understood that the first lens and the second lens include the largest lens. By exposing at least part of the largest lens in the optical lens without being surrounded by a lens barrel, the size of the optical lens can be reduced. In addition, the material of the lens barrel can be further reduced, saving costs.

[0022] In some implementations, the first lens includes a first optical zone and a first fixed zone, the first optical zone is the area through which light passes, the first fixed zone is located at the periphery of the first optical zone, and the first fixed zone is provided with a first matching portion; the second lens includes a second optical zone and a second fixed zone, the second optical zone is the area through which light passes, the second fixed zone is located at the periphery of the second optical zone, the second fixed zone is provided with a second matching portion and a second limiting portion, the second limiting portion is engaged with the first matching portion; the lens barrel is provided with a first limiting portion, and the first limiting portion is engaged with the second matching portion.

[0023] In the present application, the exposed lenses may include multiple lenses, such as a first lens and a second lens, and the first lens and the second lens, and the first lens and the lens barrel can be limited by a fitting structure, so that the first lens and the second lens can be restricted to a preset position, thereby achieving optical alignment of multiple lenses in the lens group.

[0024] In some implementations, the first lens and the second lens, and the second lens and the lens barrel are connected by laser welding, glue bonding, or solvent welding.

[0025] In some implementations, the shape of the lenses in the lens group is circular, or is a shape formed by cutting the circular lenses by circular single-edge cutting D-CUT, circular double-edge cutting I-CUT, or circular square cutting S-CUT.

[0026] In some implementations, the lens barrel is circular, or is a shape formed by cutting a circular lens barrel using a circular single-edge cutting D-CUT, a circular double-edge cutting I-CUT, or a circular square cutting S-CUT.

[0027] In a second aspect, an optical lens is provided, comprising a lens group, wherein the lens group is not surrounded by a lens barrel, and the lens group comprises at least a first lens and a second lens; the first lens comprises a first optical zone and a first fixed zone, the first optical zone is a zone through which light passes, the first fixed zone is located at the periphery of the first optical zone, and the first fixed zone is provided with a first mating portion; the second lens comprises a second optical zone and a second fixed zone, the second optical zone is a zone through which light passes, the second fixed zone is located at the periphery of the second optical zone, and the second fixed zone is provided with a second limiting portion, which is engaged and connected with the first mating portion.

[0028] In the embodiment of the present application, the optical lens can adopt a structure without being surrounded by a lens barrel. That is, by exposing all the lenses in the optical lens without being surrounded by a lens barrel, the size and weight of the optical lens can be reduced. In addition, the material of the lens barrel can also be reduced, saving costs.

[0029] In combination with the second aspect, in certain implementations of the second aspect, the first matching portion includes a protrusion arranged toward the object side, the second limiting portion includes a recess, and the protrusion of the first matching portion is accommodated in the recess of the second limiting portion, and / or the first matching portion includes a recess, the second limiting portion includes a protrusion arranged toward the object side, and the protrusion of the second limiting portion is accommodated in the recess of the first matching portion.

[0030] In combination with the second aspect, in certain implementations of the second aspect, the first lens and the second lens are connected by laser welding, glue bonding or solvent welding.

[0031] In combination with the second aspect, in certain implementations of the second aspect, the shape of the lenses in the lens group is circular, or is a shape formed by cutting the circular lenses by circular single-side cutting, circular double-side cutting, or circular square cutting.

[0032] In a third aspect, a lens module is provided, comprising a motor and an optical lens as described in any one of the first or second aspects above, wherein the motor is used to drive the optical lens for focusing and / or optical image stabilization.

[0033] It should be understood that the optical lens in the embodiments of the present application can be a fixed focal length lens, a zoom lens, or a short-focus lens, a telephoto lens, a periscope lens, etc., and the present application does not impose any restrictions on this.

[0034] In combination with the third aspect, in certain implementations of the third aspect, the lens module further includes an image processor, which is used to obtain image data from the optical lens and process the image data.

[0035] In a fourth aspect, a lens module is provided, which includes one or more lens groups, wherein the one or more lens groups include the optical lens of any one of the first aspects above.

[0036] It should be understood that the optical lens in the embodiments of the present application can be a fixed focal length lens, a zoom lens, or a short-focus lens, a telephoto lens, a periscope lens, etc., and the present application does not impose any restrictions on this.

[0037] In a fifth aspect, an electronic device is provided, comprising the lens module described in the third aspect or the fourth aspect.

[0038] Among them, for the beneficial effects of the third to fifth aspects, please refer to the beneficial effects of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a schematic diagram of an electronic device provided in an embodiment of the present application.

[0040] FIG2 is a schematic diagram of the imaging principle provided in an embodiment of the present application.

[0041] FIG3 is a schematic cross-sectional view of an optical lens provided in an embodiment of the present application.

[0042] FIG4 is a three-dimensional structural diagram of an optical lens provided in an embodiment of the present application.

[0043] FIG5 is a schematic cross-sectional view of the optical lens shown in FIG4 provided in an embodiment of the present application.

[0044] FIG6 is a cross-sectional schematic diagram of different coupling structures provided in an embodiment of the present application.

[0045] FIG7 is a schematic structural diagram of a lens trimming method according to an embodiment of the present application.

[0046] FIG8 is a three-dimensional structural diagram of another optical lens provided in an embodiment of the present application.

[0047] FIG9 is a schematic cross-sectional view of the optical lens shown in FIG8 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The technical solutions of this application will be described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, rather than all the embodiments.

[0049] The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification of this application and the appended claims, the singular expressions "a", "an", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the following embodiments of the present application, "at least one", "one or more" refer to one, two or more. The term "and / or" is used to describe the association relationship of associated objects, indicating that three relationships can exist; for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0050] References to "one embodiment" or "some embodiments" etc. described in this specification mean that the specific features, structures or characteristics described in conjunction with the embodiment are included in one or more embodiments of the present application. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in another way. The terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0051] In the embodiments of the present application, the same figure mark represents the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark the figure with one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0052] FIG1 is a schematic diagram of an electronic device. The electronic device 100 may be a device with a video or photo recording function, such as a cellular phone, a mobile phone, a smart phone, a tablet computer, a laptop computer, a video camera, a video recorder, a still camera, a smart watch, a smart wristband, or other devices with a video or photo recording function. The embodiments of the present application do not impose any particular restrictions on the specific form of the electronic device 100. For ease of explanation and understanding, the following description uses a mobile phone as an example.

[0053] As shown in Figure 1 , the electronic device 100 may include a display panel (DP) 101, a housing 102, and a camera compact module (CCM) 103. Housing 102 defines a storage space, and display 101 and lens module 103 are disposed within the storage space. Display 101 may be a liquid crystal display (LCD), an organic light emitting diode (OLED), or the like, wherein the OLED may be a flexible display or a rigid display.

[0054] The lens module 103 can be set only on the front of the electronic device 100 to shoot the scene on the front side of the electronic device 100. In some embodiments, it can be called a front lens module; it can also be set only on the back of the electronic device 100 to shoot the scene on the back side of the electronic device 100. In some embodiments, it can be called a rear lens module; it can also be set on the front and back of the electronic device 100. As shown in Figure 1, the lens module 103 is set on the front of the electronic device 100, and the lens module 103 is also set on the back of the electronic device 100. It can shoot both the scene on the front side of the electronic device 100 and the scene on the back side of the electronic device 100, as long as the corresponding lens module is used when shooting.

[0055] It should be understood that the installation position of the lens module 103 is merely schematic. In some embodiments, when the lens module 103 is used as a front lens module, it can also be installed at other positions on the electronic device 100, such as on the left side of the receiver, in the upper middle position of the electronic device 100, at the bottom of the electronic device 100, or at the four corners of the electronic device 100; when the lens module 103 is used as a rear lens module, it can be installed at the upper middle position or the upper right corner of the back of the electronic device 100. In some other embodiments, the lens module 103 may not be set on the main body of the electronic device 100, but on an edge protruding relative to the main body of the electronic device 100, or on a component that is movable or rotatable relative to the electronic device 100, such as the component that can be extended, retracted, or rotated from the main body of the electronic device 100. When the lens module 103 is rotatable relative to the electronic device 100, the lens module 103 functions as both a front lens module and a rear lens module. That is, by rotating the same lens module 103, it can capture both the scene on the front side and the scene on the back side of the electronic device 100. In other embodiments, when the display screen 101 is foldable, the lens module 103 can function as both a front lens module and a rear lens module. As the display screen 101 is folded, the lens module 103 can be used to capture either the scene on the front side or the scene on the back side of the electronic device 100.

[0056] The embodiment of the present application does not limit the number of lens modules 103 provided, and can be one, two, four, or even more. For example, the electronic device 100 can be provided with one or more lens modules 103 on the front, and one or more lens modules 103 on the back. The embodiment of the present application does not impose any restrictions on the number of lens modules provided, nor does it impose any restrictions on the relative positions of multiple lens modules when provided. When multiple lens modules 103 are provided, the multiple lens modules 103 can be exactly the same or different, for example, the optical parameters of the multiple lens modules 103 are different.

[0057] Optionally, the electronic device 100 may further include a lens protection lens for protecting the lens module 103. The lens protection lens is arranged on the housing 102 to cover the lens module 103. When the lens protection lens is used to protect the front lens module, the lens protection lens may only cover the front lens module or cover the entire front of the electronic device 100, wherein when the lens protection lens covers the entire front of the electronic device 100, it can be used to protect the front lens module and the display screen 101 at the same time, and the lens protection lens is a cover glass (CG). When the lens protection lens is used to protect the rear lens module, the lens protection lens may cover the entire back of the electronic device 100, or it may be only arranged at a position corresponding to the rear lens module to protect the rear lens module. The material of the lens protection lens may be glass, sapphire, ceramic, etc., and is not specifically limited in the embodiments of the present application. In some embodiments, the lens protection lens is transparent, so that light outside the electronic device 100 can enter the lens module 103 through the lens protection lens.

[0058] It should be noted that the front of the electronic device 100 described in the embodiment of the present application can be understood as the side surface of the electronic device 100 facing the user when the user uses the electronic device 100, and the back of the electronic device 100 can be understood as the side surface of the electronic device 100 facing away from the user when the user uses the electronic device 100.

[0059] It should be understood that the electronic device 100 shown in Figure 1 is not limited to including the above devices, but may also include other devices, such as a battery, a flash, a fingerprint recognition module, an earpiece, buttons, sensors, etc. The embodiment of the present application only uses the terminal equipped with a lens module 103 as an example for illustration, but the components installed on the electronic device 100 are not limited to this.

[0060] Figure 2 shows a schematic diagram of the imaging principle. Light L reflected from the subject passes through an optical lens 201 to generate an optical image, which is then projected onto the surface of an image sensor 202. The optical image is then converted into an electrical signal, namely an analog image signal S1. Analog image signal S1 is converted by an analog-to-digital converter (A / D) 203 into a digital image signal S2. Digital image signal S2 is then processed by an image processor 204, such as a digital signal processing (DSP) chip, to form a compressed image signal S3. This compressed image signal S3 can be stored in a memory 205 for further processing before being displayed on a monitor or display.

[0061] The optical lens 201 affects the image quality and effect. Scene light passing through the optical lens 201 forms a clear image on the focal plane, and the image of the scene is recorded by a photosensitive material or a photoreceptor. The optical lens 201 can be a system composed of one or more lenses. The lenses can be plastic or glass, spherical or aspherical, and refractive or reflective. The optical lens 201 in the embodiment of the present application includes a metalens, which can phase modulate the incident light. A detailed description is provided below.

[0062] Image sensor 202 is a semiconductor chip with photodiodes on its surface. When exposed to light, it generates an electric charge, which is converted into a digital signal by an analog-to-digital converter chip. Image sensor 202 can be a charge-coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS). A charge-coupled device (CCD) image sensor is made of a highly sensitive semiconductor material and can convert light into an electric charge, which is then converted into a digital signal by an analog-to-digital converter chip. A CCD consists of many photosensitive units, typically measured in megapixels. When light strikes the CCD surface, each photosensitive unit reflects an electric charge on the component. The signals generated by all photosensitive units are added together to form a complete image. A complementary metal-oxide semiconductor (CMOS) is primarily a semiconductor made of silicon and germanium, resulting in the coexistence of semiconductors with N (negative charge) and P (positive charge) levels on the CMOS. The current generated by these two complementary effects can be recorded and interpreted by the processing chip as an image. In some embodiments, image sensor 202 can also be referred to as a photosensitive chip, photosensitive element, or the like.

[0063] Image processor 204 optimizes and processes digital image signals through a series of complex mathematical algorithms, ultimately transmitting the processed signals to the display. Image processor 204, which can be an image processing chip or a digital signal processing chip (DSP), promptly and quickly transmits data acquired by the photosensitive chip to the central processing unit and refreshes the photosensitive chip. Therefore, the quality of the DSP directly affects image quality (e.g., color saturation, clarity, etc.).

[0064] It should be understood that the “lens” described in the embodiments of the present application should be understood as an integral lens, including one or more lenses.

[0065] FIG3 is a schematic cross-sectional view of an optical lens shown in an embodiment of the present application.

[0066] As shown in Figure 3, the optical lens 300 can be composed of a plurality of lenses (lenses) 320, a light shielding component (not shown) between the lenses, and a lens barrel 310 contained outside. The plurality of lenses 320 can be simply stacked, and the lenses 320 and the lens barrel 310 can be interference fit. One end of the lens barrel 310 is provided with a light inlet for controlling the field of view of the optical lens 300. The other end of the lens barrel 310 can be assembled with an autofocus drive assembly, and the lenses 320 can be spherical lenses or aspherical lenses. The autofocus drive assembly is used to perform autofocus or optical image stabilization on the optical lens 300. The autofocus drive assembly can also be referred to as a motor. The method of achieving autofocus or optical image stabilization using the autofocus drive assembly can be similar to the prior art, and its description is omitted here to avoid redundancy.

[0067] Lens 320 may include an optical zone 321 and a structural zone 322. Optical zone 321 is the area through which light passes, while structural zone 322 primarily provides support and cushioning, reducing mechanical or environmental impact on optical zone 321. Lens 320 is housed within lens barrel 310, which protects lens 320 and blocks stray light. Specifically, lens barrel 310 supports lens 320, which may be fixedly connected to lens barrel 310. The connection method is not limited, and for example, adhesive bonding may be employed.

[0068] In some embodiments, the sizes of the multiple lenses 320 may be different, and the size of the lens farther from the light entrance may be larger than the size of the lens closer to the light entrance.

[0069] It should be understood that the size of the optical lens 300 includes the z-direction size along the optical axis and the x / y-direction size perpendicular to the optical axis. The z-direction size is determined by the total optical length, and the total optical length is determined by the characteristics of the optical lens 300. The size of the optical lens 300 in the x-direction or y-direction is d1. The present application aims to reduce the size of the optical lens 300 in the x / y-direction, that is, to reduce the length of d1.

[0070] Therefore, the embodiment of the present application provides an optical lens that can reduce the size of the optical lens in the x-direction or the y-direction. It should be understood that the optical lens can be applied to lens modules and electronic devices.

[0071] The optical lens may include: a lens barrel and a lens group, wherein a first portion of the lenses in the lens group is located inside the lens barrel, at least a portion of the second portion of the lenses in the lens group is located outside the lens barrel, and the second portion of the lenses includes the largest lens in the lens group.

[0072] It should be understood that the optical lens in the embodiments of the present application can be a fixed focal length lens, a zoom lens, or a short-focus lens, a telephoto lens, a periscope lens, etc., and the present application does not impose any restrictions on this.

[0073] It should be noted that if the second portion of the lens assembly is a single lens, then "at least a portion of the second portion of the lens assembly is located outside the lens barrel" can be understood as: the second portion of the lens assembly is completely exposed outside the lens barrel, or a portion of the second portion of the lens assembly is exposed outside the lens barrel, and the other portion of the second portion of the lens assembly is housed inside the lens barrel. This content will be explained in detail in conjunction with Figures 4 and 5.

[0074] If the second portion of the lens assembly comprises multiple lenses, then "at least a portion of the second portion of the lens assembly is located outside the lens barrel" can be understood as: at least a portion of the lenses in the second portion of the lens assembly that are connected to the lens barrel is located outside the lens barrel. In other words, a portion of the lenses in the second portion of the lens assembly that are connected to the lens barrel is exposed outside the lens barrel, while another portion of the lenses in the second portion of the lens assembly that are connected to the lens barrel is housed inside the lens barrel. This will be explained in detail in conjunction with Figures 8 and 9.

[0075] Figure 4 is a schematic structural diagram of an optical lens 400 provided in an embodiment of the present application. By observing the optical lens 400 along the AA section shown in Figure 4, a cross-sectional view of the optical lens 400 shown in Figure 5 can be obtained. The dotted line in Figure 5 shows the optical axis direction of the optical lens 400 (hereinafter referred to as the optical axis). It should be understood that the optical axis can refer to the direction in which the optical system transmits light, with reference to the main light of the central field of view. For a symmetrical transmission system, it generally coincides with the center line of rotation of the optical system. The side along the optical axis close to the subject is the object side, and the side along the optical axis close to the image of the subject is the image side.

[0076] As shown in Figures 4 and 5 , optical lens 400 may include a lens barrel 410 and a lens assembly 420. Lens assembly 420 may be composed of a plurality of lenses, with at least some of the lenses in lens assembly 420 housed in lens barrel 410. For example, lens assembly 420 may include a first lens 421, a second lens 422, a third lens 423, a fourth lens 424, and a fifth lens 425, arranged sequentially along the optical axis. The first lens 421 is positioned closer to the image side, while the fifth lens 425 is positioned closer to the object side. In other words, the first lens 421 is the lens closest to the image side in lens assembly 420, and the fifth lens 425 is the lens closest to the object side in lens assembly 420.

[0077] The multiple lenses included in lens assembly 420 may vary in size. In some embodiments, if the optical lens is mounted upright, the lens sizes may gradually increase from the object side to the image side. In other words, the first lens 421 is larger than the other lenses and is the largest lens in lens assembly 420. In other embodiments, if the optical lens is mounted inverted, the lens sizes may gradually decrease from the object side to the image side. In this case, the largest lens may be the lens closest to the object side in the lens assembly.

[0078] In an embodiment of the present application, as shown in FIG4 , the largest lens element (e.g., first lens element 421) can be completely exposed, without being enclosed by lens barrel 410, thereby reducing the size of optical lens 400. For example, referring to FIG3 , the x / y dimension of optical lens 300 is d1, and the x / y dimension of the largest lens element is d2. If the largest lens element is exposed without being enclosed by a lens barrel, the x / y dimension of optical lens 300 can be reduced by the difference between d1 and d2. Furthermore, the weight and manufacturing cost of optical lens 300 can be reduced.

[0079] That is to say, the optical lens 400 adopts the structure shown in Figure 4. By exposing the first lens 421, which is the largest in the optical lens 400 and not surrounding it with the lens barrel 410, the size and weight of the lens barrel 410 can be reduced, thereby reducing the size and weight of the optical lens 400. In addition, the material of the lens barrel 410 can also be reduced, saving costs.

[0080] In other embodiments, the largest lens (e.g., first lens 421) may be partially exposed, for example, a portion of first lens 421 may be exposed outside lens barrel 410, while another portion of first lens 421 may be housed inside lens barrel 410. In this embodiment, the size of the optical lens in the x-direction or y-direction may be reduced in a targeted manner.

[0081] The multiple lenses included in the lens set 420 can be divided into exposed lenses (e.g., first lens 421) and non-exposed lenses (e.g., second lens 422, third lens 423, fourth lens 424, or fifth lens 425). It should be understood that in this application, the non-exposed lenses can be referred to as the first part of the lenses, and the exposed lenses can be referred to as the second part of the lenses.

[0082] The multiple lenses of the non-exposed lens can be fixed by being held tightly by the lens barrel 410, or can be fixed by a joint structure between the lenses. The fixing connection method can be, for example, adhesive fixation such as glue.

[0083] The exposed lens (e.g., the first lens 421) can be fixedly connected to the lens barrel 410 by laser bonding. It should be understood that the connection between the exposed lens (e.g., the first lens 421) and the lens barrel 410 can include glue bonding, solvent welding, and other melting connection methods in addition to laser welding, and this application does not limit this.

[0084] The exposed lens (e.g., first lens 421) can be positioned relative to lens barrel 410 via a snap-fit ​​structure. As shown in FIG5 , first lens 421 includes a first optical zone and a first fixed zone. The first optical zone is where light passes through. The first fixed zone is located at the periphery of the first optical zone. The first fixed zone is provided with a first mating portion 4211. The lens barrel 410 is provided with a first limiting portion 411. The first mating portion 4211 engages with the first limiting portion 411.

[0085] Exemplarily, the first limiting portion 411 is a recess, the first mating portion 4211 is a protrusion projecting from the first lens 421 toward the object side, and the protrusion of the first mating portion 4211 is received within the recess of the first limiting portion 411. Alternatively, the first limiting portion 411 includes a protrusion positioned toward the object side, the first mating portion 4211 includes a recess, and the protrusion of the first limiting portion 411 is received within the recess of the first mating portion 4211. The first lens 421 and the lens barrel 410 form a limiting structure through the recess and the protrusion, thereby limiting the position of the first lens 421 and the lens barrel 410. This simplifies the structure of the first lens 421 and the lens barrel 410, facilitating their manufacture. Furthermore, by limiting the position of the first lens 421 and the lens barrel 410 through the mating structure, the first lens 421 can be restrained in a predetermined position, thereby achieving optical alignment of multiple lenses.

[0086] It should be understood that in the embodiment of the present application, the cross-section of the engaging structure between the first lens 421 and the lens barrel 410 is not limited, that is, the cross-sectional structure of the first limiting portion 411 and the first matching portion 4211 is not limited.

[0087] In one example, as shown in FIG. 6( a ), the first matching portion 4211 may be a square groove, and the first limiting portion 411 may be a square protrusion received in the square groove.

[0088] In another example, as shown in FIG6( b ), the first matching portion 4211 may be a V-shaped groove, and the first limiting portion 411 may be a V-shaped protrusion received in the V-shaped groove.

[0089] In another example, as shown in FIG6( c ), the first matching portion 4211 may be an arc-shaped groove, and the first limiting portion 411 may be an arc-shaped protrusion received in the arc-shaped groove.

[0090] In another example, as shown in (d) of FIG6 , the cross section of the first limiting portion 411 may be trapezoidal, and the first matching portion 4211 is provided with an inclined surface protruding toward the trapezoidal inclined surface, and the trapezoidal inclined surface is engaged with the inclined surface of the first matching portion 4211 for limiting.

[0091] In another example, the first limiting portion 411 may include a first recess and a first protrusion, the first matching portion 4211 may include a second protrusion and a second recess, the second protrusion of the first matching portion 4211 is accommodated in the first recess of the first limiting portion 411, the first protrusion of the first limiting portion 411 accommodates the second recess of the first matching portion 4211, and so on.

[0092] It should be noted that the cross-section of the engaging structure between the first lens 421 and the lens barrel 410 may also be in other shapes, which is not limited in this application.

[0093] In some embodiments, the shape of the exposed lens (e.g., the first lens 421) can be circular. In addition, the shape of the exposed lens (e.g., the first lens 421) can also be a shape obtained by cutting the circular lens by lens cutting methods such as circular single-edge cutting D-CUT, circular double-edge cutting I-CUT, and circular square cutting S-CUT. Among them, the lens shape shown in (a) of Figure 7 is obtained by cutting the circular lens in a single direction (i.e., D-CUT), the lens shape shown in (b) of Figure 7 is obtained by cutting the circular lens in both directions (i.e., I-CUT), and the lens shape shown in (c) of Figure 7 is obtained by cutting the circular lens in square (i.e., S-CUT).

[0094] It should be noted that, in the embodiment of the present application, by performing lens trimming processing on the circular lens, the size of the optical lens 400 in the x / y direction can be further reduced, thereby further reducing the weight and production cost of the optical lens 400.

[0095] It should be understood that the embodiment of the present application does not limit the shapes of other non-exposed lenses in the lens group 420 , and the shapes of the non-exposed lenses may be the same as or different from the first lens 421 .

[0096] In some embodiments, the shape of the lens barrel 410 can be circular, or can be a shape formed by cutting a circular lens barrel through a cutting method such as D-CUT, I-CUT, or S-CUT, which is not limited in this application.

[0097] Optionally, multiple lenses in lens group 420 (e.g., first lens 421 to fifth lens 425, etc.) can be glass lenses or plastic lenses, and this application is not limited to this. In one possible example, fifth lens 425 can be a glass lens, and the other lenses can be plastic lenses. Because glass lenses have a higher refractive index, using a glass lens for fifth lens 425 is beneficial for reducing the thickness of optical lens 400 compared to using all plastic lenses in optical lens 400.

[0098] It should be understood that the exposed lens in the embodiment of the present application includes not only the largest lens (e.g., the first lens 421), but also multiple lenses (≥2) in front of the first lens 421 or all lenses in front of the first lens 421. The front of the first lens 421 can refer to the side of the first lens 421 facing the object side. In other words, in the embodiment of the present application, the exposed lens of the optical lens can include one or more lenses.

[0099] In one possible implementation, the optical lens system includes completely exposed lenses without a lens barrel. In this implementation, the optical lens system may not include a lens barrel, but may only include one or more lenses. In this implementation, one or more lenses may be deeply integrated with a motor, which can be used to drive the lens system for focusing and / or optical image stabilization.

[0100] Exemplarily, the optical lens may include a lens group, the lens group is not surrounded by a lens barrel, and the lens group includes at least a first lens and a second lens; the first lens includes a first optical zone and a first fixed zone, the first optical zone is the area through which light passes, the first fixed zone is located at the periphery of the first optical zone, and the first fixed zone is provided with a first mating portion; the second lens includes a second optical zone and a second fixed zone, the second optical zone is the area through which light passes, the second fixed zone is located at the periphery of the second optical zone, and the second fixed zone is provided with a second limiting portion, and the second limiting portion is engaged with the first mating portion. It should be understood that if the optical lens adopts a lens barrel-free structure, the lenses in the lens group included in the optical lens can be limited by a cantilever structure, and the cross-section of the cantilever structure can be rectangular, V-shaped, arc-shaped, trapezoidal, etc. For details, please refer to Figure 6, which will not be repeated here.

[0101] Exemplarily, the first matching portion includes a protrusion arranged toward the object side, the second limiting portion includes a recess, and the protrusion of the first matching portion is accommodated in the recess of the second limiting portion, and / or the first matching portion includes a recess, the second limiting portion includes a protrusion arranged toward the object side, and the protrusion of the second limiting portion is accommodated in the recess of the first matching portion.

[0102] For example, the first lens and the second lens can be connected by laser welding, glue bonding, solvent welding or the like.

[0103] Exemplarily, the shape of the lenses in the lens set is circular, or is a shape formed by cutting the circular lenses by circular single-side cutting, circular double-side cutting, or circular square cutting. The shape of the lenses can be referred to FIG7 .

[0104] In another possible implementation, the optical lens may have only one exposed lens, as shown in FIG. 4 and FIG. 5 , in which the exposed lens is the first lens 421 , which is the largest lens in the optical lens.

[0105] In another possible implementation, the optical lens may include multiple (eg, two) exposed lenses, wherein the multiple exposed lenses include a lens with the largest size. This implementation will be described in detail in conjunction with FIG. 8 and FIG. 9 .

[0106] Figure 8 is a schematic structural diagram of another optical lens 500 provided in an embodiment of the present application. Observing the optical lens 500 along the BB section shown in Figure 8 yields the cross-sectional view of the optical lens 500 shown in Figure 9. The dotted line in Figure 9 indicates the optical axis direction of the optical lens 500.

[0107] As shown in Figures 8 and 9 , the optical lens 500 may include a lens barrel 510 and a lens assembly 520. The lens assembly 520 may be composed of a plurality of lenses, with at least some of the lenses in the lens assembly 520 housed in the lens barrel 510. For example, the lens assembly 520 may include a first lens 521, a second lens 522, a third lens 523, a fourth lens 524, and a fifth lens 525, arranged sequentially along the optical axis. The first lens 521 is positioned closer to the image side, while the fifth lens 525 is positioned closer to the object side. In other words, the first lens 521 is the lens closest to the image side in the lens assembly 520, and the fifth lens 525 is the lens closest to the object side in the lens assembly 520.

[0108] In other embodiments, if the optical lens is flipped, the lens size can gradually decrease from the object side to the image side, and the largest lens can be the lens closest to the object side in the lens group. In other words, the first lens 521 can be the lens closest to the object side in the lens group 520, and the fifth lens 525 can be the lens closest to the image side in the lens group 520.

[0109] It should be understood that the first lens 521 and the second lens 522 can be completely exposed, without being surrounded by the lens barrel 510, and the first lens 521 and the second lens 522 include the largest lens. In other words, by exposing multiple lenses (such as the first lens 521 and the second lens 522) without being surrounded by the lens barrel 510, and including the largest lens among the multiple lenses, the optical lens 500 can reduce the size and weight of the optical lens 500. In addition, the material of the lens barrel 510 can be further reduced, saving costs.

[0110] In other embodiments, the first lens 521 may be completely exposed outside the lens barrel 510, a portion of the second lens 522 may be exposed outside the lens barrel 510, and another portion of the second lens 522 may be housed inside the lens barrel 510. It should be understood that the largest lens is included between the first lens 521 and the second lens 522. By exposing at least a portion of the largest lens in the optical lens without being surrounded by the lens barrel, the size and weight of the optical lens can be reduced. In addition, the material of the lens barrel can be further reduced, thereby saving costs.

[0111] The multiple lenses included in the lens set 520 can be divided into exposed lenses (e.g., first lens 521 and second lens 522) and non-exposed lenses (e.g., third lens 523, fourth lens 524, or fifth lens 525). It should be understood that in this application, the non-exposed lenses can be referred to as the first part of the lenses, and the exposed lenses can be referred to as the second part of the lenses.

[0112] The multiple lenses of the non-exposed lens can be fixed by being held tightly by the lens barrel 510, or can be fixed by a joint structure between the lenses. The fixing connection method can be, for example, adhesive fixing using glue or the like.

[0113] The exposed lenses and the lens barrel 510, and the exposed lenses themselves can be fixedly connected by laser welding. For example, the first lens 521 and the second lens 522, and the second lens 522 and the lens barrel 510 can be fixedly connected by laser welding.

[0114] It should be understood that the connection between the exposed lens and the lens barrel 510 and between the exposed lenses includes not only laser bonding but also glue bonding, solvent welding, and other melting connection methods, which are not limited in this application.

[0115] The exposed lenses can be positioned against the lens barrel 510, and between each other, by means of a reciprocating structure. Specifically, the first lens 521 can be positioned against the second lens 522 by means of a reciprocating structure, and the second lens 522 can also be positioned against the lens barrel 510 by means of a reciprocating structure. The cross-sections of the reciprocating structures between the various components can include rectangular, V-shaped, arc-shaped, trapezoidal, and the like. For details, please refer to FIG. 6 , which will not be further described here.

[0116] Exemplarily, as shown in Figure 9, the first lens 521 includes a first optical zone and a first fixed zone, the first optical zone is the area through which light passes, the first fixed zone is located at the periphery of the first optical zone, and the first fixed zone is provided with a first matching portion 5211; the second lens 522 includes a second optical zone and a second fixed zone, the second optical zone is the area through which light passes, the second fixed zone is located at the periphery of the second optical zone, and the second fixed zone is provided with a second matching portion 5222 and a second limiting portion 5221, and the second limiting portion 5221 is engaged with the first matching portion 5211; the lens barrel 510 is provided with a first limiting portion 511, and the first limiting portion 511 is engaged with the second matching portion 5222. That is to say, the first lens 521 is provided with a first matching portion 5211, the second lens 522 is provided with a second limiting portion 5221 and a second matching portion 5222, the lens barrel 510 is provided with a first limiting portion 511, the first matching portion 5211 is engaged with the second limiting portion 5221, and the second matching portion 5222 is engaged with the first limiting portion 511.

[0117] For example, the second limiting portion 5221 is a recess, the first matching portion 5211 is a protrusion convexly provided on the first lens 521 toward the object side, and the first matching portion 5211 is received within the second limiting portion 5221. The first limiting portion 511 is a recess, the second matching portion 5222 is a protrusion convexly provided on the second lens 522 toward the object side, and the second matching portion 5222 is received within the first limiting portion 511. The first lens 521 and the second lens 522, as well as the second lens 522 and the lens barrel 510, form a limiting structure through the recess and the protrusion. This not only allows the first lens 521 and the second lens 522, as well as the second lens 522 and the lens barrel 510 to limit each other, but also simplifies the structures of the first lens 521, the second lens 522, and the lens barrel 510, facilitating the manufacture of the first lens 521, the second lens 522, and the lens barrel 510. In addition, the first lens 521 and the second lens 522, and the first lens 522 and the lens barrel 510 are limited by the engagement structure, so that the first lens 521 and the second lens 522 can be restricted to a preset position, thereby achieving optical alignment of multiple lenses.

[0118] It should be noted that the shape of the lens barrel 510, the first lens 521 and the second lens 522 can be circular, or can be a shape formed by cutting the circular lens through D-CUT, I-CUT, S-CUT and other cutting methods. For details, please refer to Figure 7. This application does not limit this.

[0119] It should be understood that the optical lens 400 and / or the optical lens 500 can be a fixed focal length lens, or a zoom lens, or a short-focus lens, a telephoto lens, a periscope lens, etc., and this application does not impose any restrictions on this.

[0120] In some embodiments, if the optical lens includes multiple lens groups, one or more of the multiple lens groups can adopt the structure shown in Figure 4 or Figure 8. That is, at least one of the multiple lens groups can reduce the size of the lens barrel by exposing the lenses, which can reduce the size and weight of the optical lens. In addition, it can also reduce the material of the lens barrel and save costs.

[0121] Exemplarily, each of the multiple mirror groups can include a lens barrel, and a protrusion is provided on the outer periphery of the lens barrel. The protrusion on the lens barrel can be connected to the guide rod to achieve optical axis alignment, so that when a mirror group among the multiple mirror groups moves, the multiple mirror groups are optically aligned.

[0122] It should be understood that the optical lens described in this embodiment can be applied to the lens module 103 shown in FIG. 1 , and can also be applied to the electronic device 100 shown in FIG. 1 , and this application does not limit this.

[0123] In addition, an embodiment of the present application further provides a lens module, which may include the optical lens and a motor shown in Figure 4 or Figure 8, and the motor is used to drive the optical lens to focus and / or perform optical image stabilization.

[0124] In some embodiments, the lens module may further include an image sensor, and the image processor is used to obtain image data from the optical lens and process the image data.

[0125] In some embodiments, the lens module may further include components such as an infrared filter, a circuit board, and a gyroscope. For example, the infrared filter can eliminate unnecessary light from projecting onto the image sensor, preventing the image sensor from generating false colors or ripples, thereby improving the effective resolution and color reproduction of the image sensor. The circuit board can be a flexible printed circuit (FPC) or a printed circuit board (PCB), which is used to transmit electrical signals.

[0126] It should be understood that the optical lens 400 and the optical lens 500 provided in the embodiments of the present application can be applied to the lens module 103 shown in Figure 1, and can also be applied to the electronic device 100 shown in Figure 1, and the present application does not limit this.

[0127] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An optical lens, characterized in that: include: A lens barrel and a lens group, wherein a first portion of lenses in the lens group are located inside the lens barrel, at least a portion of a second portion of lenses in the lens group are located outside the lens barrel, and the second portion of lenses includes the largest lens in the lens group.

2. The optical lens according to claim 1, characterized in that: The second part of lenses includes a first lens, which is a lens closest to the image side in the lens group, or the first lens is a lens closest to the object side in the lens group, and the first lens is fixedly connected to the lens barrel.

3. The optical lens according to claim 2, characterized in that: The first lens includes a first optical zone and a first fixed zone, the first optical zone is the area where light passes, the first fixed zone is located at the periphery of the first optical zone, the first fixed zone is provided with a first matching portion, the lens barrel is provided with a first limiting portion, and the first matching portion is engaged with the first limiting portion.

4. The optical lens according to claim 3, characterized in that: The first limiting portion includes a recess, the first matching portion includes a protrusion arranged toward the object side, the protrusion of the first matching portion is accommodated in the recess of the first limiting portion, and / or the first limiting portion includes a protrusion arranged toward the object side, the first matching portion includes a recess, and the protrusion of the first limiting portion is accommodated in the recess of the first matching portion.

5. The optical lens according to any one of claims 2 to 4, characterized in that: The first lens is completely exposed outside the lens barrel; or, a portion of the first lens is exposed outside the lens barrel, and another portion of the first lens is accommodated inside the lens barrel.

6. The optical lens according to any one of claims 2 to 5, characterized in that: The first lens and the lens barrel are connected by laser welding, glue bonding or solvent welding.

7. The optical lens according to claim 1, characterized in that: The second part of the lens includes a first lens and a second lens, the first lens is the lens closest to the image side in the lens group, or the first lens is the lens closest to the object side in the lens group, the second lens is adjacent to the first lens, the second lens is fixedly connected to the lens barrel, and the first lens is fixedly connected to the second lens.

8. The optical lens according to claim 7, characterized in that: The first lens comprises a first optical zone and a first fixed zone, the first optical zone is a zone through which light passes, the first fixed zone is located at the periphery of the first optical zone, and the first fixed zone is provided with a first matching portion; The second lens comprises a second optical zone and a second fixing zone, the second optical zone is a zone where light passes, the second fixing zone is located at the periphery of the second optical zone, the second fixing zone is provided with a second matching portion and a second limiting portion, the second limiting portion is engaged with the first matching portion; The lens barrel is provided with a first limiting portion, and the first limiting portion is engaged with the second matching portion.

9. The optical lens according to claim 7 or 8, characterized in that: The first lens is completely exposed outside the lens barrel, and the second lens is completely exposed outside the lens barrel; or, a portion of the second lens is exposed outside the lens barrel, and another portion of the second lens is accommodated inside the lens barrel.

10. The optical lens according to any one of claims 7 to 9, characterized in that: The first lens and the second lens, and the second lens and the lens barrel are connected by laser welding, glue bonding or solvent welding.

11. The optical lens according to any one of claims 1 to 10, characterized in that: The shape of the lenses in the lens group is circular, or is a shape formed by cutting the circular lenses into circular single-side cutting, circular double-side cutting, or circular square cutting.

12. The optical lens according to any one of claims 1 to 11, characterized in that: The shape of the lens barrel is circular, or is a shape formed by cutting the circular lens barrel by single-side circular cutting, double-side circular cutting, or square circular cutting.

13. An optical lens, characterized in that: The lens group comprises a lens set, wherein the lens set is not surrounded by a lens barrel, and the lens set comprises at least a first lens and a second lens; The first lens comprises a first optical zone and a first fixed zone, the first optical zone is a zone through which light passes, the first fixed zone is located at the periphery of the first optical zone, and the first fixed zone is provided with a first matching portion; The second lens includes a second optical zone and a second fixed zone, the second optical zone is a zone through which light passes, the second fixed zone is located at the periphery of the second optical zone, the second fixed zone is provided with a second limiting portion, and the second limiting portion is engaged with the first matching portion.

14. The optical lens according to claim 13, characterized in that: The first matching portion includes a protrusion arranged toward the object side, and the second limiting portion includes a recess, and the protrusion of the first matching portion is accommodated in the recess of the second limiting portion, and / or the first matching portion includes a recess, and the second limiting portion includes a protrusion arranged toward the object side, and the protrusion of the second limiting portion is accommodated in the recess of the first matching portion.

15. The optical lens according to claim 13 or 14, characterized in that: The first lens and the second lens are connected by laser welding, glue bonding or solvent welding.

16. The optical lens according to any one of claims 13 to 15, characterized in that: The shape of the lenses in the lens group is circular, or is a shape formed by cutting the circular lenses into circular single-side cutting, circular double-side cutting, or circular square cutting.

17. A lens module, characterized in that: The invention comprises a motor and an optical lens as claimed in any one of claims 1 to 16, wherein the motor is used to drive the optical lens to perform focusing and / or optical image stabilization.

18. The lens module according to claim 17, characterized in that: The lens module also includes an image processor, which is used to obtain image data from the optical lens and process the image data.

19. A lens module, characterized in that: It comprises one or more lens groups, wherein the one or more lens groups include the optical lens according to any one of claims 1 to 16.

20. An electronic device, characterized in that: Comprising a lens module as described in any one of claims 17 to 19.

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