Lens, optical path conversion member, camera module, and electronic device

Abstract

Embodiments of the present application provide a lens, an optical path conversion component, a camera module and an electronic device, and relate to the technical field of electronic devices. The lens comprises a lens incident surface, a lens exit surface and a lens peripheral surface. Along the thickness direction of the lens, the lens incident surface and the lens exit surface are oppositely and separately arranged, and the lens incident surface and the lens exit surface are connected through the lens peripheral surface. The lens peripheral surface comprises a cutting edge part, the cutting edge part is provided with a first groove structure, and the cutting edge part comprises a plurality of first protrusions separated by the first groove structure. In this way, the stray light irradiated to the photosensitive element can be weakened, and the imaging quality of the camera module can be improved.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a lens, an optical path conversion component, a camera module, and an electronic device. Background Technology

[0002] Mobile phones, tablets, and other electronic devices often include camera modules, enabling these devices to take pictures.

[0003] To provide a longer optical path for telephoto shooting and other applications, the camera module may include an optical path conversion component for folding and redirecting the optical path. This component may include prisms and lenses. In related technologies, during shooting, in addition to the effective light passing through the optical path conversion component and reaching the image sensor, stray light may also pass through the optical path conversion component and reach the image sensor. This stray light can affect the image quality of the camera module.

[0004] Therefore, how to reduce stray light illuminating the photosensitive element has become an urgent problem to be solved in the field of electronic device technology. Utility Model Content

[0005] This application provides a lens, an optical path conversion component, a camera module, and an electronic device, which can reduce stray light illuminating the photosensitive element and improve the imaging quality of the camera module.

[0006] A first aspect of this application provides a lens, which includes an incident surface, an exit surface, and an outer peripheral surface. Along the thickness direction of the lens, the incident surface and the exit surface are opposite to each other and spaced apart, and are connected by the outer peripheral surface. The outer peripheral surface includes a truncated edge, which has a first groove structure and includes a plurality of first protrusions formed by the first groove structure.

[0007] The lens provided in this application embodiment, by providing a first groove structure on the cut edge to divide the cut edge into multiple first protrusions, can easily form an uneven surface on the cut edge. When stray light enters the lens through the lens incident surface and illuminates the cut edge, the reflection of the stray light transmitted inside the lens by the uneven cut edge can disperse the stray light inside the lens, thereby reducing the stray light emitted from the lens exit surface. This reduces the stray light illuminating the photosensitive element, thus improving the imaging quality of the camera module. In addition, the uneven cut edge can also disperse stray light emitted from the outside of the lens to the cut edge, which also helps to reduce the stray light illuminating the photosensitive element, further improving the imaging quality of the camera module.

[0008] In one possible implementation, the first groove structure includes multiple first straight grooves arranged side by side and spaced apart, with both ends of the first straight grooves being open structures along their length.

[0009] In this way, it is easier to form the first groove structure on the cut edge, and the first groove structure can be used to divide the cut edge into multiple first protrusions to disperse stray light illuminating the cut edge.

[0010] In one possible implementation, the first groove structure further includes multiple second straight grooves arranged side by side and spaced apart. The second straight grooves intersect the first straight grooves perpendicularly or obliquely, and both ends of the second straight grooves are open structures along their length.

[0011] This makes it easier to form a complex concave-convex surface on the cut edge, which can effectively disperse stray light while making it easier to form the first groove structure.

[0012] In one possible implementation, the outer peripheral surface of the lens also includes an arcuate portion, which is arranged circumferentially with the tangent portion of the lens and connected to the tangent portion. The first groove structure and the first protrusion are located on the tangent portion.

[0013] In this way, the curved surface itself can disperse stray light, which can effectively disperse stray light on the outer periphery of the lens, while making the overall structure of the lens simpler and the manufacturing cost lower.

[0014] In one possible implementation, the cut edge is provided with a first light-absorbing layer, which covers the surface of the first protrusion.

[0015] In this way, the first light-absorbing layer can reduce stray light incident from the outside of the lens onto the cut edge. The stray light has poor reflection and transmission effects at the cut edge. Through the dual action of the first light-absorbing layer and the first protrusion, the stray light can be effectively reduced at the cut edge, making the stray light incident on the photosensitive element weaker, which is beneficial to improving the imaging quality of the camera module.

[0016] In one possible implementation, the lens incident surface includes a first effective light-transmitting portion and a first frame portion. The first frame portion is located on the side of the lens incident surface connected to the chopped edge portion, and the chopped edge portion is connected to the first effective light-transmitting portion through the first frame portion. The first frame portion is provided with a first light-weakening structure.

[0017] In this way, by providing a first light-attenuating structure on the first frame portion connected to the cut edge, stray light incident on the cut edge portion via the first frame portion is reduced, which in turn reduces stray light incident on the lens exit surface via the cut edge portion. Furthermore, after the first light-attenuating structure reduces stray light incident on the first frame portion, it also helps reduce stray light reflected or transmitted through the first frame portion and incident on the photosensitive element via other paths. This, in turn, improves the imaging quality of the camera module.

[0018] In one possible implementation, the first light weakening structure includes a second groove structure, and the first frame portion includes a plurality of second protrusions formed by being separated by the second groove structure.

[0019] In this way, by setting a second groove structure in the first frame portion to divide the first frame portion into multiple second protrusions, it is relatively easy to make the first frame portion into an uneven surface. When stray light shines on the first frame portion from the outside and inside of the lens, the reflection of the uneven first frame portion can disperse the stray light, thereby reducing the stray light that shines on the photosensitive element through the first frame portion, and thus improving the imaging quality of the camera module.

[0020] In one possible implementation, the first light-weakening structure further includes a second light-absorbing layer that covers the surface of the second protrusion.

[0021] In this way, the second light-absorbing layer can reduce stray light incident from the outside of the lens onto the first frame. The stray light has poor reflection and transmission effects at the first frame. Through the dual action of the second light-absorbing layer and the second protrusion, the stray light can be effectively reduced at the first frame, making the stray light incident on the photosensitive element weaker, which is beneficial to improving the imaging quality of the camera module.

[0022] In one possible implementation, the lens exit surface includes a second effective light-transmitting portion and a second frame portion. The second frame portion is located on the side of the lens exit surface connected to the chamfered edge portion, and the chamfered edge portion is connected to the second effective light-transmitting portion through the second frame portion. The second frame portion is provided with a second light-weakening structure.

[0023] In this way, by providing a second light-attenuating structure on the second frame portion connected to the cut edge portion, stray light incident on the cut edge portion via the first frame portion is reduced, which in turn reduces stray light incident on the lens exit surface via the cut edge portion. Furthermore, the reduction of stray light incident on the second frame portion by the second light-attenuating structure also helps reduce stray light reflected or transmitted through the second frame portion and incident on the photosensitive element via other paths. This improves the imaging quality of the camera module.

[0024] In one possible implementation, the second light weakening structure includes a third groove structure, and the second frame portion includes a plurality of third protrusions formed by being separated by the third groove structure.

[0025] In this way, by setting a third groove structure in the second frame portion to divide the second frame portion into multiple third protrusions, it is relatively easy to make the second frame portion into an uneven surface. When stray light shines on the second frame portion from the outside and inside of the lens, the reflection of the uneven second frame portion can disperse the stray light, thereby reducing the stray light that shines on the photosensitive element through the second frame portion, and thus improving the imaging quality of the camera module.

[0026] In one possible implementation, the second light-weakening structure further includes a third light-absorbing layer that covers the surface of the third protrusion.

[0027] In this way, the third light-absorbing layer can reduce stray light incident from the outside of the lens onto the second frame. The stray light is poorly reflected and transmitted at the second frame. Through the dual action of the third light-absorbing layer and the third protrusion, the stray light can be effectively reduced at the second frame, making the stray light incident on the photosensitive element weaker, which is beneficial to improving the imaging quality of the camera module.

[0028] A second aspect of this application provides an optical path conversion component, which includes a prism and a lens as described in any of the above implementations. The prism includes a prism incident surface and a prism exit surface. At least one of the prism incident surface and the prism exit surface is provided with a lens.

[0029] In one possible implementation, the prism incident surface includes a first light-transmitting portion and a third frame portion. The third frame portion is located outside the first light-transmitting portion and surrounds the first light-transmitting portion, and the third frame portion is provided with a third light-weakening structure.

[0030] In this way, by setting a third light weakening structure in the third frame portion, stray light incident on the third frame portion can be reduced, which in turn helps to reduce stray light incident on the photosensitive element through the third frame portion, thus improving the imaging quality of the camera module.

[0031] In one possible implementation, the third light weakening structure includes a fourth groove structure, and the third frame portion is divided by the fourth groove structure to form a plurality of fourth protrusions.

[0032] In this way, by setting a fourth groove structure in the third frame portion to divide the third frame portion into multiple fourth protrusions, it is relatively easy to make the third frame portion into an uneven surface. When stray light shines on the third frame portion from the outside and inside of the prism, the reflection of the uneven third frame portion can disperse the stray light, thereby reducing the stray light that shines on the photosensitive element through the third frame portion, and thus improving the imaging quality of the camera module.

[0033] In one possible implementation, the prism's exit surface includes a second light-transmitting portion and a fourth frame portion. The fourth frame portion is located outside the second light-transmitting portion and surrounds the second light-transmitting portion, and the fourth frame portion is provided with a fourth light-weakening structure.

[0034] In this way, by setting a fourth light weakening structure in the fourth frame portion, stray light incident on the fourth frame portion can be reduced, which in turn helps to reduce stray light incident on the photosensitive element through the fourth frame portion, thus improving the imaging quality of the camera module.

[0035] In one possible implementation, the fourth light weakening structure includes a fifth groove structure, and the fourth frame portion is divided by the fifth groove structure to form a plurality of fifth protrusions.

[0036] In this way, by setting a fifth groove structure in the fourth frame portion to divide the fourth frame portion into multiple fifth protrusions, it is relatively easy to make the fourth frame portion into an uneven surface. When stray light shines on the fourth frame portion from the outside and inside of the prism, the reflection of the uneven fourth frame portion can disperse the stray light, thereby reducing the stray light that reaches the photosensitive element through the fourth frame portion, and thus improving the imaging quality of the camera module.

[0037] A third aspect of this application provides a camera module, which includes a lens and an optical path conversion component as described in any of the above implementations. The optical path conversion component is provided on at least one side of the image side and the object side of the lens.

[0038] A fourth aspect of this application provides an electronic device, which includes a device housing and a camera module as described in any of the above implementations. The camera module is disposed within the device housing. Attached Figure Description

[0039] Figure 1 An exploded view of an electronic device provided in an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of a camera module provided in an embodiment of this application;

[0041] Figure 3 A schematic diagram of another camera module provided in an embodiment of this application;

[0042] Figure 4 A schematic diagram of yet another camera module provided in the embodiments of this application;

[0043] Figure 5 A schematic diagram of an optical path conversion component provided in an embodiment of this application;

[0044] Figure 6 A schematic diagram of another optical path conversion component provided in an embodiment of this application;

[0045] Figure 7 A schematic diagram of another optical path conversion component provided in an embodiment of this application;

[0046] Figure 8 A schematic diagram of another optical path conversion component provided in an embodiment of this application;

[0047] Figure 9 A schematic diagram of a reflective sheet provided in an embodiment of this application;

[0048] Figure 10 A schematic diagram of another optical path conversion component provided in an embodiment of this application;

[0049] Figure 11 A schematic diagram of another optical path conversion component provided in an embodiment of this application;

[0050] Figure 12 A schematic diagram of another optical path conversion component provided in an embodiment of this application;

[0051] Figure 13 A schematic diagram of another optical path conversion component provided in an embodiment of this application;

[0052] Figure 14 A schematic diagram of a lens from one angle provided in an embodiment of this application;

[0053] Figure 15 for Figure 14 A schematic diagram of another perspective of the lens provided in the image;

[0054] Figure 16 for Figure 14 A schematic diagram of another perspective of the lens provided in the image;

[0055] Figure 17 This is a partial schematic diagram of a cut edge provided in an embodiment of this application;

[0056] Figure 18 This is a partial schematic diagram of another cut edge provided in an embodiment of this application;

[0057] Figure 19 This is a partial schematic diagram of another cut edge provided in an embodiment of this application;

[0058] Figure 20 This is a partial schematic diagram of another cut edge provided in an embodiment of this application;

[0059] Figure 21 This is a partial schematic diagram of another cut edge provided in an embodiment of this application;

[0060] Figure 22 A schematic diagram of another lens provided in an embodiment of this application;

[0061] Figure 23 A schematic diagram of another lens provided in an embodiment of this application;

[0062] Figure 24 for Figure 23 A schematic diagram of another perspective of the lens provided in the image;

[0063] Figure 25 A schematic diagram of a prism provided for an embodiment of this application;

[0064] Figure 26 This is a schematic diagram of another optical path conversion component provided in an embodiment of this application.

[0065] Explanation of reference numerals in the attached figures:

[0066] 10. Equipment casing; 11. Back cover; 12. Mid-frame; 20. Display screen; 30. Camera module; 31. Lens; 32. Image sensor; 33. Module circuit board; 34. Optical path conversion component; 40. Battery; 50. Motherboard;

[0067] 100, Lens; 100a, Entrance lens; 100b, Exit lens;

[0068] 110. Lens incident surface; 111. First effective light-transmitting portion; 112. First frame portion; 1121. Second protrusion;

[0069] 120. Lens exit surface; 121. Second effective light-transmitting part; 122. Second frame part; 1221. Third protrusion;

[0070] 130. Lens outer peripheral surface; 131. Chamfered edge; 131a. First chamfered edge; 131b. Second chamfered edge; 1311. First protrusion; 132. Curved surface; 132a. First curved surface; 132b. Second curved surface;

[0071] 200. Prism;

[0072] 210. Prism incident surface; 211. First light-transmitting part; 212. Third frame part; 2121. Fourth protrusion;

[0073] 220. Prism exit surface; 221. Second light-transmitting section; 222. Fourth frame section; 2221. Fifth protrusion;

[0074] 230, Reflecting surface; 230a, First reflecting surface; 230b, Second reflecting surface;

[0075] 240. First side view;

[0076] 250. Second side view;

[0077] 300, reflective sheet; 310, substrate; 320, reflective film; 330, base film;

[0078] 400. Antireflective membrane;

[0079] S1, First groove structure; S11, First straight groove; S12, Second straight groove;

[0080] S2, second slot structure; S3, third slot structure; S4, fourth slot structure; S5, fifth slot structure; S6, sixth slot structure;

[0081] A1, First surface; A2, Second surface. Detailed Implementation

[0082] The terminology used in the implementation section of this application is only for explaining specific embodiments of this application and is not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0083] This application provides an electronic device, which may include, but is not limited to, mobile phones, tablets, laptops, ultra-mobile personal computers (UMPCs), handheld computers, walkie-talkies, netbooks, point-of-sale (POS) machines, personal digital assistants (PDAs), wearable devices, virtual reality devices, etc. The electronic device may be a foldable device, for example, a foldable mobile phone. The electronic device may also be a non-foldable device, for example, a candybar mobile phone. This application uses a candybar mobile phone as an example for illustration.

[0084] Figure 1 This is an exploded view of an electronic device provided in an embodiment of this application.

[0085] like Figure 1 As shown, the electronic device includes a device housing 10 and a camera module 30. The camera module 30 is disposed on the device housing 10, and the device housing 10 can serve to support and protect the camera module 30. The camera module 30 is used to capture images.

[0086] In some examples, the electronic device may also include a display screen 20 disposed on a device housing 10, the display screen 20 and the device housing 10 being used to enclose a device mounting cavity, and at least a portion of the camera module 30 being disposed within the device mounting cavity enclosed by the display screen 20 and the device housing 10.

[0087] In other examples, the electronic device may include a device housing 10 but not a display screen 20. The device housing 10 may itself form a device mounting cavity, and at least a portion of the camera module 30 may be disposed within the device mounting cavity formed by the device housing 10 itself.

[0088] The following description uses an electronic device, including a display screen 20 and a device housing 10, as an example.

[0089] like Figure 1 As shown, for example, the device housing 10 may include a middle frame 12 and a rear cover 11. The rear cover 11 and the display screen 20 are respectively covered on both sides of the middle frame 12. The rear cover 11, the middle frame 12 and the display screen 20 surround to form a device mounting cavity. The camera module 30 can be fixed to the middle frame 12, and the middle frame 12 can support the camera module 30.

[0090] In some examples, the middle frame 12 and the back cover 11 can be separate structures, and the middle frame 12 and the back cover 11 can be fixedly connected by means of adhesive, snap-fit, fastener connection, etc.

[0091] In other examples, the middle frame 12 and the back cover 11 can also be a single structure, that is, the middle frame 12 and the back cover 11 can be integrated into a single structural component.

[0092] For example, the electronic device also includes a motherboard 50 and a battery 40, both of which are disposed within the device housing 10. The battery 40 is electrically connected to the motherboard 50, and the motherboard 50 is electrically connected to the camera module 30. When the electronic device includes a display screen 20, the motherboard 50 is also electrically connected to the display screen 20.

[0093] For example, the motherboard 50 and the battery 40 can be fixedly mounted on the middle frame 12.

[0094] Figure 2 This is a schematic diagram of a camera module provided in an embodiment of this application.

[0095] like Figure 2 As shown, the camera module 30 includes a lens 31, a module circuit board 33, and a photosensitive element 32. The module circuit board 33 is electrically connected to the main board 50 and can be fixed to the main board 50 or the mid-frame 12. The photosensitive element 32 is disposed on and electrically connected to the module circuit board 33, and is located on the image side of the lens 31. Light from the object side of the lens 31 passes through the lens 31 and is incident on the photosensitive element 32, allowing the photosensitive element 32 to collect the light from the object side of the lens 31 to achieve the shooting function.

[0096] The image side of lens 31 refers to the side where the image of the subject is located, with lens 31 as the boundary. The object side of lens 31 refers to the side where the subject is located, with lens 31 as the boundary.

[0097] The photosensitive element 32 can also be called an image sensor. The photosensitive element 32 can be a charge-coupled device (CCD), a complementary metal-oxide semiconductor device (CMOS), or other devices that can realize photoelectric conversion function.

[0098] For example, lens 31 may include multiple lenses arranged along the optical axis of lens 31.

[0099] To ensure that the camera module 30 has a longer optical path, in order to meet the needs of telephoto shooting, etc., for example... Figure 2 As shown, the camera module 30 also includes a light path conversion component 34. The light path conversion component 34 is provided on at least one side of the image side and the object side of the lens 31. The light path conversion component 34 is used to fold and redirect the light path of light rays from the incident light side of the light path conversion component 34, so that while the camera module 30 has a longer light path, its size in the incident light direction is smaller.

[0100] For example, the light incident direction of the camera module 30 can be the thickness direction of the electronic device. By setting the light path conversion component 34, a camera module 30 with a longer light path can be arranged in a thin electronic device.

[0101] like Figure 2 As shown, in some examples, the light path conversion component 34 can be disposed on the object side of the lens 31. The light path conversion component 34 is used to fold and turn the light path of the light before it enters the lens 31. The light from the incident light side of the light path conversion component 34 enters the lens 31 after being turned by the light path conversion component 34.

[0102] Figure 3 This is a schematic diagram of another camera module provided in an embodiment of this application.

[0103] like Figure 3 As shown, in some other examples, the light path conversion component 34 can be disposed on the image side of the lens 31. Along the light path direction of the camera module 30, the light path conversion component 34 is located between the lens 31 and the photosensitive element 32. The light path conversion component 34 is used to fold and redirect the light path of the light emitted from the lens 31, so that the light emitted from the lens 31 is redirected by the light path conversion component 34 and then directed towards the photosensitive element 32.

[0104] Figure 4 This is a schematic diagram of another camera module provided in an embodiment of this application.

[0105] like Figure 4As shown, in some other examples, both the object side and the image side of lens 31 are provided with light path conversion components 34. The light path conversion component 34 provided on the object side of lens 31 is used to fold and redirect the light path of the light rays before they enter lens 31. Along the light path direction of the camera module 30, the light path conversion component 34 provided on the image side of lens 31 is located between lens 31 and photosensitive element 32, and is used to fold and redirect the light path of the light rays emitted from lens 31.

[0106] In some examples, the camera module 30 may also include a motor system (not shown), with the lens 31 and the optical path conversion component 34 disposed within the motor system. The motor system carries the lens 31 and the optical path conversion component 34, and can be used to achieve functions such as autofocus (AF), zoom, and optical image stabilization (OIS).

[0107] For example, the camera module 30 can be a telephoto camera module, which can be used for shooting distant scenes.

[0108] Figure 5 This is a schematic diagram of an optical path conversion component provided in an embodiment of this application.

[0109] like Figure 5 As shown, the optical path conversion component 34 includes a prism 200, which includes a prism incident surface 210, a prism exit surface 220, a reflecting surface 230, a first side surface 240, and a second side surface 250 (e.g., ...). Figure 25 As shown in the diagram, the first side surface 240 and the second side surface 250 are opposite to each other and spaced apart. The prism incident surface 210, the prism exit surface 220, and the reflecting surface 230 are all located between the first side surface 240 and the second side surface 250. The first side surface 240 and the second side surface 250 are respectively connected to the two opposite sides of the prism incident surface 210, the two opposite sides of the prism exit surface 220, and the two opposite sides of the reflecting surface 230. The prism incident surface 210 is used to allow light rays from the incident light side of the prism 200 to enter the prism 200. The reflecting surface 230 is used to reflect the light rays entering the prism 200 to achieve folding and redirection of the light path. The prism exit surface 220 is used to allow light rays inside the prism 200 to exit the prism 200.

[0110] For example, the first side 240 and the second side 250 are the two sides of the prism 200 in the width direction of the camera module 30.

[0111] In some examples, the first side 240 is parallel to the second side 250.

[0112] In this application, "two surfaces are parallel" means that the two surfaces are arranged in parallel as a whole, and the grooves, protrusions, and other structures on the two surfaces do not affect the parallel arrangement of the two surfaces as a whole.

[0113] In some examples, the reflecting surface 230 is perpendicular to the first side surface 240 and the second side surface 250, the prism incident surface 210 is perpendicular to the first side surface 240 and the second side surface 250, and the prism exit surface 220 is perpendicular to the first side surface 240 and the second side surface 250.

[0114] In this application, "two surfaces perpendicular" means that the two surfaces are arranged perpendicularly as a whole, and the grooves, protrusions, and other structures on the two surfaces do not affect the perpendicular arrangement of the two surfaces as a whole.

[0115] For example, the material of prism 200 may include, but is not limited to, glass, injection molded material, etc.

[0116] For example, prism 200 may include, but is not limited to, triangular prism, roof prism, boat prism, pentagonal prism, etc. Prism 200 may include one or more reflecting surfaces 230.

[0117] like Figure 5 As shown, the optical path conversion component 34 also includes a lens 100, and at least one of the prism incident surface 210 and prism exit surface 220 is provided with a lens 100.

[0118] For example, lens 100 may be, but is not limited to, a plano-convex lens, a plano-concave lens, a concave-convex lens, a biconcave lens, etc.

[0119] For example, the material of lens 100 may include, but is not limited to, glass, injection molded material, etc.

[0120] In some examples, lens 100 is bonded to prism 200 with optical adhesive.

[0121] For example, the components of optical adhesives may include epoxy resin, acrylic acid, silicone, etc.

[0122] For example, the optical adhesive can be a light-curing adhesive or a thermosetting adhesive. The thickness of the optical adhesive is greater than or equal to 5 μm and less than or equal to 20 μm, so as to enable the lens 100 to be firmly bonded to the prism 200 by the optical adhesive while keeping the attachment tilt angle between the prism 200 and the lens 100 small.

[0123] For example, the difference between the refractive index of the optical adhesive and the refractive index of the prism 200 is less than 0.3.

[0124] In some examples, lens 100 and prism 200 can be bonded together and fixed.

[0125] like Figure 5 As shown, in some examples, the prism incident surface 210 is provided with a lens 100. The lens 100 provided on the prism incident surface 210 is an incident light lens 100a. That is, the light path conversion component 34 includes an incident light lens 100a, which is provided on the prism incident surface 210.

[0126] Figure 6 This is a schematic diagram of another optical path conversion component provided in an embodiment of this application.

[0127] like Figure 6 As shown, in some examples, the prism exit surface 220 is provided with a lens 100, and the lens 100 provided on the prism exit surface 220 is a light-emitting lens 100b. That is, the light path conversion component 34 includes a light-emitting lens 100b, which is provided on the prism exit surface 220.

[0128] Figure 7 This is a schematic diagram of another optical path conversion component provided in an embodiment of this application.

[0129] like Figure 7 As shown, in some examples, both the prism incident surface 210 and the prism exit surface 220 are provided with lenses 100. The lens 100 provided on the prism incident surface 210 is the incident lens 100a, and the lens 100 provided on the prism exit surface 220 is the exit lens 100b. That is to say, the optical path conversion component 34 includes the incident lens 100a and the exit lens 100b. The incident lens 100a is provided on the prism incident surface 210, and the exit lens 100b is provided on the prism exit surface 220.

[0130] For example, the incident lens 100a and the exit lens 100b can be different types of lenses 100. For instance, the incident lens 100a can be a plano-convex lens, and the exit lens 100b can be a plano-concave lens.

[0131] Figure 8 This is a schematic diagram of another optical path conversion component provided in an embodiment of this application.

[0132] like Figure 8 As shown, in some examples, the reflective surface 230 is provided with a reflective sheet 300, which is used to improve the reflection effect of light.

[0133] For example, an anti-reflective film 400 is provided between the reflective sheet 300 and the reflective surface 230.

[0134] For example, the antireflective coating 400 may include 6 to 10 layers, each layer may be formed of metal oxides such as titanium dioxide and silicon dioxide, the thickness of the antireflective coating 400 may be greater than or equal to 150 nm and less than or equal to 450 nm, the reflectivity of the antireflective coating 400 is less than 1%, the refractive index of the antireflective coating 400 near the reflecting surface 230 is similar to the refractive index of the prism 200, and the refractive index of the antireflective coating 400 gradually transitions from the side near the reflecting surface 230 to the side away from the reflecting surface 230.

[0135] For example, the reflective surface 230 can be cleaned for 60 seconds at 90°C, and then an antireflective film 400 can be formed on the reflective surface 230 by an ion source-assisted coating process.

[0136] For example, the reflective sheet 300 includes a substrate 310 and a reflective film 320. The reflective film 320 is located between the substrate 310 and the reflective surface 230. The substrate 310 is used to support the reflective film 320, and the reflective film 320 is used to improve the reflection effect of light.

[0137] For example, the reflective film 320 is located between the substrate 310 and the antireflective film 400.

[0138] For example, the material of the substrate 310 may include, but is not limited to, tungsten carbide, ceramic, cemented carbide, metal mixture, glass, etc.

[0139] In some examples, the substrate 310 can be a transparent sheet, and the material of the substrate 310 can be, but is not limited to, plexiglass, inorganic glass, colored glass, colorless glass, etc.

[0140] In some examples, the substrate 310 can be a non-transparent sheet, and the material of the substrate 310 can be, but is not limited to, metal, composite non-metallic material, graphite, graphene, etc.

[0141] For example, the thickness of the substrate 310 may be greater than or equal to 0.1 mm.

[0142] For example, the micro-irregularity height (Rz) of the surface of the substrate 310 near the reflective film 320 is greater than or equal to 6 nm, and the peak-to-valley value (PV) of the surface of the substrate 310 near the reflective film 320 is greater than or equal to 10 nm.

[0143] For example, the reflective film 320 can be a metal film, a dielectric film, or a metal-dielectric composite film.

[0144] For example, the reflective film 320 has a reflectivity greater than or equal to 99%.

[0145] For example, the thickness of the reflective film 320 can be greater than or equal to 150 nm and less than or equal to 500 nm.

[0146] For example, the arithmetic mean deviation (Ra) of the profile of the surface of the reflective film 320 near the reflective surface 230 is less than the thickness of the reflective film 320, and the peak-to-valley value (PV) of the surface of the reflective film 320 near the reflective surface 230 is less than λ / 5, where λ is the wavelength of visible light, and λ can be equal to 635nm.

[0147] Figure 9 This is a schematic diagram of a reflective sheet provided in an embodiment of this application.

[0148] like Figure 9 As shown, the reflective sheet 300 also includes a base film 330 located between the substrate 310 and the reflective film 320, and the reflective film 320 is disposed on the surface of the substrate 310 through the base film 330.

[0149] For example, the surface of the substrate 310 can be cleaned for 60 seconds using an ion source cleaning process at room temperature, and then a base film 330 and a reflective film 320 can be formed on the surface of the substrate 310 by a coating process.

[0150] like Figure 7 As shown, in some examples, prism 200 can be a right-angled triangular prism. In this case, the prism incident surface 210 is perpendicular to the prism exit surface 220, one side of the prism incident surface 210 is connected to one side of the prism exit surface 220, and prism 200 includes a reflecting surface 230. The side of the prism incident surface 210 away from the prism exit surface 220 is connected to one side of the reflecting surface 230, and the side of the prism exit surface 220 away from the prism incident surface 210 is connected to the opposite side of the reflecting surface 230.

[0151] Figure 10 This is a schematic diagram of another optical path conversion component provided in an embodiment of this application.

[0152] like Figure 10 As shown, in some examples, prism 200 may include multiple reflecting surfaces 230, each reflecting surface 230 having a reflective sheet 300.

[0153] In some examples, the prism 200 can be a boat-shaped prism. In this case, the prism 200 includes two reflecting surfaces 230, and a first surface A1 and a second surface A2 that are opposite to each other and spaced apart. The first surface A1 and the second surface A2 can be parallel to each other. The first surface A1 includes a prism incident surface 210 and a prism exit surface 220, that is, the prism incident surface 210 and the prism exit surface 220 are located on the first surface A1, and the prism incident surface 210 and the prism exit surface 220 are coplanar. The two reflecting surfaces 230 are a first reflecting surface 230a and a second reflecting surface 230b, which are located between the first surface A1 and the second surface A2. The opposite sides of the first reflecting surface 230a are connected to one side of the first surface A1 and one side of the second surface A2, respectively. The opposite sides of the second reflecting surface 230b are connected to the other side of the first surface A1 and the other side of the second surface A2, respectively. Both the first reflecting surface 230a and the second reflecting surface 230b are provided with reflective sheets 300.

[0154] like Figure 10 As shown, in some examples where the prism 200 is a boat-shaped prism 200, a lens 100 can be provided on the prism incident surface 210, that is, an incident lens 100a can be provided on the first surface A1.

[0155] Figure 11 This is a schematic diagram of another optical path conversion component provided in an embodiment of this application.

[0156] like Figure 11 As shown, in some examples where the prism 200 is a boat-shaped prism, lenses 100 can be provided on both the prism incident surface 210 and the prism exit surface 220. That is, the first surface A1 can be provided with an incident lens 100a and an exit lens 100b.

[0157] Figure 12 This is a schematic diagram of another optical path conversion component provided in an embodiment of this application.

[0158] like Figure 12 As shown, in some examples, the prism 200 can be a pentagonal prism. In this case, the prism 200 may include three reflective surfaces 230 connected in sequence. Each of the three reflective surfaces 230 is provided with a reflective sheet 300. One side of the whole formed by the three reflective surfaces 230 connected together is connected to one side of the prism incident surface 210, and the other side of the whole formed by the three reflective surfaces 230 connected together is connected to the prism exit surface 220. The other side of the prism incident surface 210 is connected to the other side of the prism exit surface 220.

[0159] In some examples where the prism 200 is a pentagonal prism, the prism incident surface 210 may be provided with a lens 100.

[0160] Figure 13 This is a schematic diagram of another optical path conversion component provided in an embodiment of this application.

[0161] like Figure 13 As shown, in some examples where the prism 200 is a pentagonal prism, both the prism incident surface 210 and the prism exit surface 220 can be provided with lenses 100.

[0162] Figure 14 This is a schematic diagram of a lens from one angle, provided in an embodiment of this application. Figure 15 for Figure 14 A schematic diagram of another perspective of the lens provided in the image. Figure 16 for Figure 14 The diagram shows another perspective of the lens provided.

[0163] like Figures 14-16 As shown, lens 100 includes a lens incident surface 110, a lens exit surface 120, and a lens outer peripheral surface 130. Along the thickness direction of lens 100, the lens incident surface 110 and the lens exit surface 120 are opposite to each other and spaced apart, and the lens incident surface 110 and the lens exit surface 120 are connected by the lens outer peripheral surface 130.

[0164] For example, when the lens 100 is an incident lens 100a, the lens exit surface 120 of the incident lens 100a is connected to the prism incident surface 210.

[0165] For example, when the lens 100 is a light-emitting lens 100b, the lens incident surface 110 of the light-emitting lens 100b is connected to the prism exit surface 220.

[0166] To facilitate the assembly of a lens 100 with a large light-transmitting diameter within a camera module 30 with a relatively small width or height, the edge of the lens 100 may have an avoidance cut to reduce the size of the lens 100 in the width or height direction of the camera module 30. In this case, the outer peripheral surface 130 of the lens includes a cut edge 131.

[0167] In some examples, the avoidance cut can be formed by cutting off the edge portion of the circular lens 100 blank through a cutting process. After the edge portion of the lens 100 blank is cut off, the outer peripheral surface 130 of the lens forms a cut edge 131 at the avoidance cut.

[0168] The clearance cut and the cut edge 131 may also be formed without cutting; the cut edge 131 and the clearance cut simply indicate that the edge of the lens 100 is truncated. For example, the clearance cut and the cut edge 131 may also be formed by molding the lens 100 during injection molding.

[0169] For example, the lens 100 may have clearance cuts on one or more edges, and the outer peripheral surface 130 of the lens may include one or more cut edges 131. When the outer peripheral surface 130 of the lens includes multiple cut edges 131, the multiple cut edges 131 are arranged circumferentially along the lens 100.

[0170] In some possible implementations, the outer peripheral surface 130 of the lens also includes an arcuate portion 132, which is arranged along the circumference of the lens 100 with the tangent portion 131 connected to the arcuate portion 132.

[0171] In some examples, the outer peripheral surface 130 of the lens includes two chopped portions 131 and two curved portions 132. The two chopped portions 131 are respectively a first chopped portion 131a and a second chopped portion 131b, and the two curved portions 132 are respectively a first curved portion 132a and a second curved portion 132b. The first chopped portion 131a and the second chopped portion 131b are disposed opposite to each other, and the first curved portion 132a and the second curved portion 132b are disposed opposite to each other. One side of the first chopped portion 131a is connected to one side of the first curved portion 132a. The side of the first curved portion 132a away from the first chopped portion 131a is connected to one side of the second chopped portion 131b. The side of the second chopped portion 131b away from the first curved portion 132a is connected to one side of the second curved portion 132b. The side of the second curved portion 132b away from the second chopped portion 131b is connected to the side of the first chopped portion 131a away from the first curved portion 132a. At this time, the projection of lens 100 in the thickness direction of lens 100 can be a racetrack-shaped structure, and lens 100 has avoidance cuts on opposite side edges.

[0172] In other examples, the outer peripheral surface of the lens 100 may include three chopped portions 131 and an arcuate portion 132, with the arcuate portion 132 disposed opposite to one of the chopped portions 131 and the other two chopped portions 131 disposed opposite to each other. In this case, the lens 100 has clearance cuts on three sides.

[0173] In some other examples, the outer peripheral surface of lens 100 may include a chamfered portion 131 and an arcuate portion 132, in which case lens 100 has an avoidance cut on one side edge.

[0174] In some possible implementations, the outer peripheral surface 130 of the lens may include a chamfered edge 131 but not a curved surface 132. For example, the outer peripheral surface 130 of the lens may include four chamfered edges 131 connected end to end, in which case the lens 100 has clearance cuts on all four sides.

[0175] This application embodiment uses the lens outer peripheral surface 130, which includes two oppositely arranged chamfered portions 131 and two oppositely arranged curved portions 132, as an example for illustration.

[0176] In related technologies, the cut-off edge is a planar structure. After stray light enters the lens through the lens incident surface, the cut-off edge will produce a specular reflection of the stray light transmitted inside the lens. This results in strong stray light exiting the lens through the lens exit surface and reaching the photosensitive element. The photosensitive element being irradiated by strong stray light will have a significant impact on the imaging quality of the camera module.

[0177] like Figure 15 , Figure 16 As shown, based on this, the cut edge portion 131 is provided with a first groove structure S1, and the cut edge portion 131 includes a plurality of first protrusions 1311 formed by being separated by the first groove structure S1.

[0178] In this way, by providing a first groove structure S1 in the cut edge 131 to divide the cut edge 131 into multiple first protrusions 1311, it is relatively easy to make the cut edge 131 into an uneven surface. When stray light enters the lens 100 through the lens incident surface 110 and illuminates the cut edge 131, the reflection of the stray light transmitted inside the lens 100 by the uneven cut edge 131 can disperse the stray light inside the lens 100, thereby reducing the stray light emitted from the lens exit surface 120. This reduces the stray light illuminating the photosensitive element 32, thus improving the imaging quality of the camera module 30. In addition, the uneven cut edge 131 can also disperse stray light emitted from the outside of the lens 100 to the cut edge 131, which also helps to reduce the stray light illuminating the photosensitive element 32, thus improving the imaging quality of the camera module 30.

[0179] In some examples where the outer peripheral surface 130 of the lens also includes an arcuate portion 132, the first groove structure S1 and the first protrusion 1311 are located at the cut edge 131, that is, the arcuate portion 132 does not have the first groove structure S1, and the arcuate portion 132 includes the first protrusion 1311.

[0180] In this way, the curved surface 132 itself can disperse stray light, which can effectively disperse stray light on the outer peripheral surface 130 of the lens, while making the overall structure of the lens 100 simpler and the manufacturing cost lower.

[0181] In an example where the outer peripheral surface 130 of the lens includes a plurality of chopped portions 131 arranged circumferentially along the lens 100, each chopped portion 131 has a first groove structure S1 and each chopped portion 131 includes a plurality of first protrusions 1311 formed by being separated by the first groove structure S1.

[0182] In some possible implementations, the first groove structure S1 includes a plurality of first straight grooves S11 arranged side by side and spaced apart. Both ends of the first straight grooves S11 are open structures along their length direction. That is, the first straight grooves S11 penetrate the lens 100 along their length direction.

[0183] In this way, it is easier to form the first groove structure S1 in the cut edge portion 131, and the first groove structure S1 can be used to divide the cut edge portion 131 into multiple first protrusions 1311 to disperse stray light irradiating the cut edge portion 131.

[0184] For example, the first groove structure S1 can be formed by ultrafast laser processing. For instance, the first groove structure S1 can be formed by directly cutting the tangent portion 131 using infrared picosecond or infrared femtosecond laser processes. The power of the laser used to cut the tangent portion 131 can be 20W to 50W, and the single-pulse energy can be 1mJ to 3.5mJ.

[0185] For example, the first protrusion 1311 may be a tooth-like structure.

[0186] In some examples, the first protrusion 1311 is a strip-shaped structure extending along the length direction of the first straight groove S11. Multiple first protrusions 1311 are connected to form a sawtooth structure, that is, the cut edge 131 is a sawtooth surface. The shape of the sawtooth structure can include, but is not limited to, wavy, triangular, rectangular, etc., that is, the shape of the first protrusion 1311 can include, but is not limited to, wavy, triangular, rectangular, etc.

[0187] In some examples, the length direction of the first linear groove S11 is the thickness direction of the lens 100.

[0188] In some examples, the length direction of the first linear groove S11 may be perpendicular to or inclined to the thickness direction of the lens 100.

[0189] Figure 17 This is a partial schematic diagram of a cut edge provided in an embodiment of this application.

[0190] like Figure 17 As shown, in some possible embodiments, the first groove structure S1 further includes a plurality of second straight grooves S12 arranged side by side and spaced apart. The second straight grooves S12 intersect the first straight grooves S11 perpendicularly or obliquely. Both ends of the length direction of the second straight grooves S12 are open structures, that is, the second straight grooves S12 penetrate the lens 100 along the length direction of the second straight grooves S12.

[0191] This makes it easier to form a complex concave-convex surface in the cut edge 131. A more complex concave-convex surface has a better effect on scattering stray light and reducing stray light illuminating the photosensitive element 32. In other words, it is easier to form the first groove structure S1 while making the cut edge 131 have a good effect on scattering stray light.

[0192] For example, the first groove structure S1 can be formed by an ultrafast laser surface etching process. For instance, the first groove structure S1 can be formed by processes such as infrared picosecond lasers or ultraviolet picosecond lasers.

[0193] In some examples, the shape of the first protrusion 1311 may include, but is not limited to, a triangular prism, a cylinder, a square prism, a square pyramid, etc.

[0194] In some examples where the lens 100 is injection molded, the first groove structure S1 and the first protrusion 1311 can be formed during the injection molding of the lens 100.

[0195] Figure 18 This is a partial schematic diagram of another cut edge provided in an embodiment of this application.

[0196] like Figure 18 As shown, in some examples, the first protrusion 1311 can be a pointed structure. For example, the first protrusion 1311 can be an acute-angled structure, an obtuse-angled structure, or a right-angled structure.

[0197] Figure 19 This is a partial schematic diagram of another cut edge provided in an embodiment of this application.

[0198] like Figure 19 As shown, in some examples, the top of the first protrusion 1311 can be an arc structure.

[0199] In some examples, the first protrusion 1311 can be an arc structure as a whole.

[0200] like Figure 19 As shown, in some examples, two adjacent first protrusions 1311 are arranged consecutively, and the roots of two adjacent first protrusions 1311 are directly connected.

[0201] Figure 20 This is a partial schematic diagram of another cut edge provided in an embodiment of this application.

[0202] like Figure 20 As shown, in some examples, two adjacent first protrusions 1311 are spaced apart, and the roots of two adjacent first protrusions 1311 are connected by the bottom wall of the first groove structure S1.

[0203] In some examples, the top of the first protrusion 1311 can be a planar structure, or the first protrusion 1311 can be a rectangular block structure.

[0204] In some examples, the walls of the first slot structure S1 can be planar.

[0205] Figure 21 This is a partial schematic diagram of another cut edge provided in an embodiment of this application.

[0206] like Figure 21 As shown, in some examples, the groove wall of the first groove structure S1 can be an arc-shaped structure.

[0207] In some examples, all the first protrusions 1311 have the same shape and structure.

[0208] In some examples, at least some of the first protrusions 1311 have different shapes and structures.

[0209] In some possible implementations, the cut edge 131 is provided with a first light-absorbing layer that covers the surface of the first protrusion 1311.

[0210] In this way, the first light-absorbing layer can reduce stray light incident from the outside of the lens 100 onto the cut edge 131. The stray light has poor reflection and transmission effect at the cut edge 131. Through the dual action of the first light-absorbing layer and the first protrusion 1311, the stray light can be effectively reduced at the cut edge 131, making the stray light incident on the photosensitive element 32 weaker, which is beneficial to improving the imaging quality of the camera module 30.

[0211] In an example where two adjacent first protrusions 1311 are spaced apart and the roots of the two adjacent first protrusions 1311 are connected through the bottom wall of the first groove structure S1, the first light-absorbing layer also covers the bottom wall of the first groove structure S1.

[0212] For example, the first light-absorbing layer can completely cover the cut edge 131.

[0213] For example, the first light-absorbing layer can be formed by coating the cut edge 131 with light-absorbing ink. The light-absorbing ink can be black ink.

[0214] Figure 22 This is a schematic diagram of another lens provided in an embodiment of this application.

[0215] like Figure 22 As shown, in some possible embodiments, the lens incident surface 110 includes a first effective light-transmitting portion 111 and a first frame portion 112. The first frame portion 112 is located on the side of the lens incident surface 110 connected to the chamfered edge portion 131. The chamfered edge portion 131 is connected to the first effective light-transmitting portion 111 through the first frame portion 112. The first frame portion 112 is provided with a first light-weakening structure, which is used to weaken the light rays incident on the first frame portion 112.

[0216] Thus, by providing a first light-weakening structure in the first frame portion 112 connected to the cut edge portion 131, stray light incident on the cut edge portion 131 via the first frame portion 112 is reduced, which in turn reduces stray light incident on the lens exit surface 120 via the cut edge portion 131. Furthermore, after the first light-weakening structure reduces stray light incident on the first frame portion 112, it also helps to reduce stray light reflected or transmitted through the first frame portion 112 and incident on the photosensitive element 32 via other paths. This improves the imaging quality of the camera module 30.

[0217] When the outer peripheral surface 130 of the lens includes a plurality of chopped portions 131, the incident surface 110 of the lens includes a plurality of first frame portions 112 corresponding to the plurality of chopped portions 131. The first frame portions 112 are located on the side of the incident surface 110 of the lens that connects to the corresponding chopped portions 131. The chopped portions 131 are connected to the first effective light-transmitting portion 111 through the corresponding first frame portions 112.

[0218] In some possible implementations, the first light weakening structure includes a second groove structure S2, and the first frame portion 112 includes a plurality of second protrusions 1121 formed by being separated by the second groove structure S2.

[0219] In this way, by providing a second groove structure S2 in the first frame portion 112 to divide the first frame portion 112 into multiple second protrusions 1121, it is relatively easy to make the first frame portion 112 form an uneven surface. When stray light shines on the first frame portion 112 from the outside and inside of the lens 100, the stray light can be dispersed by the reflection of the uneven first frame portion 112, thereby reducing the stray light incident on the photosensitive element 32 through the first frame portion 112, and thus improving the imaging quality of the camera module 30.

[0220] In some examples, the second groove structure S2 may include multiple third straight grooves arranged side by side and spaced apart.

[0221] In some examples, the second groove structure S2 may also include multiple fourth straight grooves arranged side by side and spaced apart, the fourth straight grooves intersecting the third straight grooves perpendicularly or obliquely.

[0222] For example, the second protrusion 1121 may be a tooth-like structure.

[0223] In some examples, multiple second protrusions 1121 are connected to form a sawtooth structure, that is, the first border portion 112 is a sawtooth surface.

[0224] For example, the molding process of the second groove structure S2 can refer to the molding process of the first groove structure S1, and will not be repeated here.

[0225] For example, the shape and structure of the second protrusion 1121 can refer to the shape and structure of the first protrusion 1311, and will not be described again here.

[0226] In some possible implementations, the first light-weakening structure further includes a second light-absorbing layer that covers the surface of the second protrusion 1121.

[0227] In this way, the second light-absorbing layer can reduce stray light incident from the outside of the lens 100 onto the first frame portion 112. The stray light has a poor effect of reflection and transmission at the first frame portion 112. Through the dual action of the second light-absorbing layer and the second protrusion 1121, the stray light can be effectively reduced at the first frame portion 112, making the stray light incident on the photosensitive element 32 weaker, which is beneficial to improving the imaging quality of the camera module 30.

[0228] In some examples, two adjacent second protrusions 1121 are spaced apart, and the roots of two adjacent second protrusions 1121 are connected through the bottom wall of the second groove structure S2. The second light-absorbing layer also covers the bottom wall of the second groove structure S2.

[0229] For example, the second light-absorbing layer can completely cover the first border portion 112.

[0230] For example, the second light-absorbing layer can be formed by coating the first border portion 112 with light-absorbing ink.

[0231] Figure 23 This is a schematic diagram of another lens provided in an embodiment of this application, showing one angle of view. Figure 24 for Figure 23 A schematic diagram of another perspective of the lens provided in the image.

[0232] like Figure 23 , Figure 24 As shown, in some possible embodiments, the lens exit surface 120 includes a second effective light-transmitting portion 121 and a second frame portion 122. The second frame portion 122 is located on the side of the lens exit surface 120 connecting to the chamfered edge portion 131. The chamfered edge portion 131 is connected to the second effective light-transmitting portion 121 through the second frame portion 122. The second frame portion 122 is provided with a second light-weakening structure, which is used to weaken the light rays incident on the second frame portion 122.

[0233] Thus, by providing a second light-weakening structure in the second frame portion 122 connected to the cut edge portion 131, stray light incident on the cut edge portion 131 via the first frame portion 112 is reduced, which in turn reduces stray light incident on the lens exit surface 120 via the cut edge portion 131. Furthermore, after the second light-weakening structure reduces stray light incident on the second frame portion 122, it also helps reduce stray light reflected or transmitted through the second frame portion 122 and incident on the photosensitive element 32 via other paths. This improves the imaging quality of the camera module 30.

[0234] When the outer peripheral surface 130 of the lens includes a plurality of chopped portions 131, the lens exit surface 120 includes a plurality of second frame portions 122 corresponding to the plurality of chopped portions 131. The second frame portions 122 are located on the side of the lens incident surface 110 that connects to the corresponding chopped portions 131. The chopped portions 131 are connected to the second effective light transmission portion 121 through the corresponding second frame portions 122.

[0235] In some possible implementations, the second light weakening structure includes a third groove structure S3, and the second frame portion 122 includes a plurality of third protrusions 1221 formed by being separated by the third groove structure S3.

[0236] In this way, by providing a third groove structure S3 in the second frame portion 122 to divide the second frame portion 122 into multiple third protrusions 1221, it is relatively easy to make the second frame portion 122 into an uneven surface. When stray light shines on the second frame portion 122 from the outside and inside of the lens 100, the stray light can be dispersed by the reflection of the uneven second frame portion 122, thereby reducing the stray light incident on the photosensitive element 32 through the second frame portion 122, and thus improving the imaging quality of the camera module 30.

[0237] In some examples, the third groove structure S3 may include multiple fifth straight grooves arranged side by side and spaced apart.

[0238] In some examples, the third groove structure S3 may also include multiple sixth straight grooves arranged side by side and spaced apart, the sixth straight grooves intersecting the fifth straight grooves perpendicularly or obliquely.

[0239] For example, the third protrusion 1221 can be a tooth-like structure.

[0240] In some examples, multiple third protrusions 1221 are connected to form a sawtooth structure, that is, the second border portion 122 is a sawtooth surface.

[0241] For example, the molding process of the third groove structure S3 can refer to the molding process of the first groove structure S1, and will not be repeated here.

[0242] For example, the shape and structure of the third protrusion 1221 can refer to the shape and structure of the first protrusion 1311, and will not be described again here.

[0243] In some possible implementations, the second light-weakening structure further includes a third light-absorbing layer that covers the surface of the third protrusion 1221.

[0244] In this way, the third light-absorbing layer can reduce stray light incident from the outside of the lens 100 onto the second frame portion 122. The stray light has a poor effect of reflection and transmission in the second frame portion 122. Through the dual action of the third light-absorbing layer and the third protrusion 1221, the stray light can be reduced in the second frame portion 122, making the stray light incident on the photosensitive element 32 weaker, which is beneficial to improving the imaging quality of the camera module 30.

[0245] In some examples, two adjacent third protrusions 1221 are spaced apart, and the roots of two adjacent third protrusions 1221 are connected through the bottom wall of the third groove structure S3. The third light-absorbing layer also covers the bottom wall of the third groove structure S3.

[0246] For example, the third light-absorbing layer can completely cover the second border portion 122.

[0247] For example, the third light-absorbing layer can be formed by coating the second border portion 122 with light-absorbing ink.

[0248] Figure 25 This is a schematic diagram of a prism provided in an embodiment of this application.

[0249] like Figure 25 As shown, in some possible embodiments, the prism incident surface 210 includes a first light-transmitting portion 211 and a third frame portion 212. The third frame portion 212 is located outside the first light-transmitting portion 211 and surrounds the first light-transmitting portion 211. The third frame portion 212 is provided with a third light-weakening structure, which is used to weaken the light rays incident on the third frame portion 212.

[0250] In this way, by providing a third light weakening structure in the third frame portion 212, stray light incident on the third frame portion 212 can be reduced, which in turn helps to reduce stray light incident on the photosensitive element 32 through the third frame portion 212, thereby improving the imaging quality of the camera module 30.

[0251] Figure 26 This is a schematic diagram of another optical path conversion component provided in an embodiment of this application.

[0252] like Figure 26 As shown, when the lens 100 is provided on the prism incident surface 210, that is, when the light path conversion component 34 includes the incident lens 100a, the incident lens 100a is provided on the first light transmission part 211, that is, the third frame part 212 surrounds the outside of the incident lens 100a.

[0253] When the prism incident surface 210 is not provided with a lens 100, that is, when the light path conversion component 34 does not include the incident lens 100a, the first light transmission part 211 is used to allow effective light for shooting to pass through.

[0254] like Figure 25 As shown, in some possible implementations, the third light weakening structure includes a fourth groove structure S4, and a plurality of fourth protrusions 2121 formed by the fourth groove structure S4 separating the third frame portion 212.

[0255] In this way, by providing a fourth groove structure S4 in the third frame portion 212 to divide the third frame portion 212 into multiple fourth protrusions 2121, it is relatively easy to make the third frame portion 212 into an uneven surface. When stray light shines on the third frame portion 212 from the outside and inside of the prism 200, the stray light can be dispersed by the reflection of the uneven third frame portion 212, thereby reducing the stray light that shines on the photosensitive element 32 through the third frame, and thus improving the imaging quality of the camera module 30.

[0256] In some examples, the fourth groove structure S4 may include multiple seventh straight grooves arranged side by side and spaced apart.

[0257] In some examples, the fourth groove structure S4 may also include multiple eighth straight grooves arranged side by side and spaced apart, the eighth straight grooves intersecting the seventh straight grooves perpendicularly or obliquely.

[0258] For example, the fourth protrusion 2121 can be a tooth-like structure.

[0259] In some examples, multiple fourth protrusions 2121 are connected to form a sawtooth structure, that is, the third border portion 212 is a sawtooth surface.

[0260] For example, the molding process of the fourth groove structure S4 can refer to the molding process of the first groove structure S1, and will not be described again here.

[0261] For example, the shape and structure of the fourth protrusion 2121 can refer to the shape and structure of the first protrusion 1311, and will not be described again here.

[0262] In some possible implementations, the third light-weakening structure further includes a fourth light-absorbing layer that covers the surface of the fourth protrusion 2121.

[0263] In this way, the fourth light-absorbing layer can reduce stray light incident from the outside of the prism 200 onto the third frame portion 212. The stray light has a poor effect of reflection and transmission at the third frame portion 212. Through the dual action of the fourth light-absorbing layer and the fourth protrusion 2121, the stray light can be effectively reduced at the third frame portion 212, making the stray light incident on the photosensitive element 32 weaker, which is beneficial to improving the imaging quality of the camera module 30.

[0264] In some examples, two adjacent fourth protrusions 2121 are spaced apart, and the roots of two adjacent fourth protrusions 2121 are connected through the bottom wall of the fourth groove structure S4. The fourth light-absorbing layer also covers the bottom wall of the fourth groove structure S4.

[0265] For example, the fourth light-absorbing layer can completely cover the third border portion 212.

[0266] For example, the fourth light-absorbing layer can be formed by coating the third border portion 212 with light-absorbing ink.

[0267] like Figure 25 As shown, in some possible embodiments, the prism exit surface 220 includes a second light-transmitting portion 221 and a fourth frame portion 222. The fourth frame portion 222 is located outside the second light-transmitting portion 221 and surrounds the second light-transmitting portion 221. The fourth frame portion 222 is provided with a fourth light-weakening structure, which is used to weaken the light rays incident on the fourth frame portion 222.

[0268] In this way, by providing a fourth light weakening structure in the fourth frame portion 222, stray light incident on the fourth frame portion 222 can be reduced, which in turn helps to reduce stray light incident on the photosensitive element 32 through the fourth frame portion 222, thereby improving the imaging quality of the camera module 30.

[0269] like Figure 26 As shown, when the lens 100 is provided on the prism exit surface 220, that is, when the light path conversion component 34 includes the light-emitting lens 100b, the light-emitting lens 100b is provided on the second light-transmitting part 221, that is, the fourth frame part 222 surrounds the outside of the light-emitting lens 100b.

[0270] When the prism exit surface 220 is not provided with a lens 100, that is, when the light path conversion component 34 does not include the light-emitting lens 100b, the second light-transmitting part 221 is used to allow effective light for shooting to pass through.

[0271] like Figure 25 As shown, in some possible implementations, the fourth light weakening structure includes a fifth groove structure S5, and a plurality of fifth protrusions 2221 formed by the fifth groove structure S5 separating the fourth frame portion 222.

[0272] In this way, by providing a fifth groove structure S5 in the fourth frame portion 222 to divide the fourth frame portion 222 into multiple fifth protrusions 2221, it is relatively easy to make the fourth frame portion 222 into an uneven surface. When stray light shines on the fourth frame portion 222 from the outside and inside of the prism 200, the stray light can be dispersed by the reflection of the uneven fourth frame portion 222, thereby reducing the stray light incident on the photosensitive element 32 through the fourth frame portion 222, and thus improving the imaging quality of the camera module 30.

[0273] In some examples, the fifth groove structure S5 may include multiple ninth straight grooves arranged side by side and spaced apart.

[0274] In some examples, the fifth groove structure S5 may also include multiple tenth straight grooves arranged side by side and spaced apart, the tenth straight grooves intersecting the ninth straight grooves perpendicularly or obliquely.

[0275] For example, the fifth protrusion 2221 can be a tooth-like structure.

[0276] In some examples, multiple fifth protrusions 2221 are connected to form a sawtooth structure, that is, the fourth border portion 222 is a sawtooth surface.

[0277] For example, the molding process of the fifth groove structure S5 can refer to the molding process of the first groove structure S1, and will not be repeated here.

[0278] For example, the shape and structure of the fifth protrusion 2221 can refer to the shape and structure of the first protrusion 1311, and will not be described again here.

[0279] In some possible implementations, the fourth light-weakening structure further includes a fifth light-absorbing layer that covers the surface of the fifth protrusion 2221.

[0280] In this way, the fifth light-absorbing layer can reduce stray light incident from the outside of the prism 200 onto the fourth frame portion 222. The stray light has a poor effect of reflection and transmission at the fourth frame portion 222. Through the dual action of the fifth light-absorbing layer and the fifth protrusion 2221, the stray light can be effectively reduced at the fourth frame portion 222, making the stray light incident on the photosensitive element 32 weaker, which is beneficial to improving the imaging quality of the camera module 30.

[0281] In some examples, two adjacent fifth protrusions 2221 are spaced apart, and the roots of two adjacent fifth protrusions 2221 are connected through the bottom wall of the fifth groove structure S5. The fifth light-absorbing layer also covers the bottom wall of the fifth groove structure S5.

[0282] For example, the fifth light-absorbing layer can completely cover the fourth border portion 222.

[0283] For example, the fifth light-absorbing layer can be formed by coating the fourth border portion 222 with light-absorbing ink.

[0284] like Figure 25 As shown, in some possible embodiments, at least one of the first side surface 240 and the second side surface 250 has a fifth light weakening structure. The fifth light weakening structure provided on the first side surface 240 is used to weaken the light rays incident on the first side surface 240, and the fifth light weakening structure provided on the second side surface 250 is used to weaken the light rays incident on the second side surface 250.

[0285] In this way, by setting a fifth light weakening structure in at least one of the first side 240 and the second side 250, stray light incident on at least one of the first side 240 and the second side 250 can be reduced, thereby reducing stray light incident on the photosensitive element 32 and improving the imaging quality of the camera module 30.

[0286] For example, both the first side 240 and the second side 250 have a fifth light weakening structure.

[0287] This reduces stray light from the first side 240 and the second side 250, which helps to reduce stray light incident on the photosensitive element 32.

[0288] Figure 26 This is a schematic diagram of another optical path conversion component 34 provided in an embodiment of this application.

[0289] like Figure 26 As shown, in some examples, the fifth light weakening structure includes a sixth groove structure S6.

[0290] When the first side surface 240 has a sixth groove structure S6, the first side surface 240 includes a plurality of sixth protrusions formed by the sixth groove structure S6 provided on the first side surface 240. When the second side surface 250 has a sixth groove structure S6, the second side surface 250 includes a plurality of sixth protrusions formed by the sixth groove structure S6 provided on the second side surface 250.

[0291] This allows for a relatively convenient method of forming an uneven surface at least one of the first side surface 240 and the second side surface 250. When stray light shines onto the first side surface 240 and the second side surface 250 from both the outside and inside of the prism 200, the uneven surface reflects the stray light, thus reducing the amount of stray light incident on the photosensitive element 32 and improving the imaging quality of the camera module 30.

[0292] In some examples, the sixth groove structure S6 may include multiple eleventh straight grooves arranged side by side and spaced apart.

[0293] In some examples, the sixth groove structure S6 may also include multiple twelfth straight grooves arranged side by side and spaced apart, the twelfth straight grooves intersecting perpendicularly or obliquely with the eleventh straight groove.

[0294] For example, the sixth protrusion can be a tooth-like structure.

[0295] In some examples, multiple sixth protrusions are connected to form a serrated structure, that is, at least one of the first side 240 and the second side 250 is a serrated surface.

[0296] For example, the molding process of the sixth groove structure S6 can refer to the molding process of the first groove structure S1, and will not be repeated here.

[0297] For example, the shape and structure of the sixth protrusion can refer to the shape and structure of the first protrusion 1311, and will not be described again here.

[0298] In some possible implementations, the fifth light-weakening structure further includes a sixth light-absorbing layer that covers the surface of the sixth protrusion.

[0299] In this way, the sixth light-absorbing layer can reduce stray light incident from the outside of the prism 200 onto at least one of the first side surface 240 and the second side surface 250. Through the dual action of the sixth light-absorbing layer and the sixth protrusion, it can effectively reduce stray light at at least one of the first side surface 240 and the second side surface 250, making the stray light illuminating the photosensitive element 32 weaker, which is beneficial to improving the imaging quality of the camera module 30.

[0300] In some examples, two adjacent sixth protrusions are spaced apart, the roots of two adjacent sixth protrusions are connected by the bottom wall of the sixth groove structure S6, and the sixth light-absorbing layer also covers the bottom wall of the sixth groove structure S6.

[0301] For example, the sixth light-absorbing layer can be formed by coating with light-absorbing ink.

[0302] like Figure 26 As shown, in some examples, the first side 240 and the second side 250 may have a sixth groove structure S6, so that the first light-transmitting part 211 does not have a fourth groove structure S4 and the second light-transmitting part 221 does not have a fifth groove structure S5.

[0303] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0304] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0305] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects; in formulas, the character " / " indicates a "division" relationship between the preceding and following related objects.

[0306] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0307] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

Claims

1. A lens (100), characterized in that, It includes the lens incident surface (110), the lens exit surface (120), and the lens outer peripheral surface (130); Along the thickness direction of the lens (100), the lens incident surface (110) and the lens exit surface (120) are opposite to each other and spaced apart, and the lens incident surface (110) and the lens exit surface (120) are connected through the lens outer peripheral surface (130); The outer peripheral surface (130) of the lens includes a cut edge portion (131), the cut edge portion (131) is provided with a first groove structure (S1), and the cut edge portion (131) includes a plurality of first protrusions (1311) formed by being separated by the first groove structure (S1).

2. The lens (100) according to claim 1, characterized in that, The first groove structure (S1) includes multiple first straight grooves (S11) arranged side by side and spaced apart, and both ends of the first straight grooves (S11) in the length direction are open structures.

3. The lens (100) according to claim 2, characterized in that, The first groove structure (S1) also includes a plurality of second straight grooves (S12) arranged side by side and spaced apart. The second straight grooves (S12) intersect the first straight grooves (S11) perpendicularly or obliquely. Both ends of the second straight grooves (S12) in the length direction are open structures.

4. The lens (100) according to claim 1, characterized in that, The outer peripheral surface (130) of the lens also includes an arc-shaped portion (132), which is arranged along the circumference of the lens (100) with the cut edge portion (131). The arc-shaped portion (132) is connected to the cut edge portion (131), and the first groove structure (S1) and the first protrusion (1311) are located on the cut edge portion (131).

5. The lens (100) according to claim 1, characterized in that, The cut edge (131) is provided with a first light-absorbing layer, which covers the surface of the first protrusion (1311).

6. The lens (100) according to any one of claims 1-5, characterized in that, The lens incident surface (110) includes a first effective light-transmitting portion (111) and a first frame portion (112); The first frame portion (112) is located on the side of the lens incident surface (110) connected to the cut edge portion (131). The cut edge portion (131) is connected to the first effective light transmission portion (111) through the first frame portion (112). The first frame portion (112) is provided with a first light weakening structure.

7. The lens (100) according to claim 6, characterized in that, The first light weakening structure includes a second groove structure (S2), and the first frame portion (112) includes a plurality of second protrusions (1121) formed by being separated by the second groove structure (S2).

8. The lens (100) according to claim 7, characterized in that, The first light weakening structure further includes a second light-absorbing layer, which covers the surface of the second protrusion (1121).

9. The lens (100) according to any one of claims 1-5, characterized in that, The lens exit surface (120) includes a second effective light-transmitting portion (121) and a second frame portion (122); The second frame portion (122) is located on the side of the lens exit surface (120) connected to the cut edge portion (131). The cut edge portion (131) is connected to the second effective light transmission portion (121) through the second frame portion (122). The second frame portion (122) is provided with a second light weakening structure.

10. The lens (100) according to claim 9, characterized in that, The second light weakening structure includes a third groove structure (S3), and the second frame portion (122) includes a plurality of third protrusions (1221) formed by being separated by the third groove structure (S3).

11. The lens (100) according to claim 10, characterized in that, The second light weakening structure also includes a third light-absorbing layer that covers the surface of the third protrusion (1221).

12. An optical path conversion component (34), characterized in that, Includes a prism (200) and a lens (100) as described in any one of claims 1-11; The prism (200) includes a prism incident surface (210) and a prism exit surface (220); At least one of the prism incident surface (210) and the prism exit surface (220) is provided with the lens (100).

13. The optical path conversion component (34) according to claim 12, characterized in that, The prism incident surface (210) includes a first light-transmitting portion (211) and a third frame portion (212); The third frame portion (212) is located outside the first light-transmitting portion (211) and surrounds the first light-transmitting portion (211). The third frame portion (212) is provided with a third light weakening structure.

14. The optical path conversion component (34) according to claim 13, characterized in that, The third light weakening structure includes a fourth groove structure (S4), and the third frame portion (212) is divided by the fourth groove structure (S4) to form a plurality of fourth protrusions (2121).

15. The optical path conversion component (34) according to any one of claims 12-14, characterized in that, The prism exit surface (220) includes a second light-transmitting part (221) and a fourth frame part (222); The fourth frame portion (222) is located outside the second light-transmitting portion (221) and surrounds the second light-transmitting portion (221). The fourth frame portion (222) is provided with a fourth light weakening structure.

16. The optical path conversion component (34) according to claim 15, characterized in that, The fourth light weakening structure includes a fifth groove structure (S5), and the fourth frame portion (222) is divided by the fifth groove structure (S5) to form a plurality of fifth protrusions (2221).

17. A camera module (30), characterized in that, Includes a lens (31) and an optical path conversion component (34) as described in any one of claims 12-16; The optical path conversion component (34) is provided on at least one side of the image side and the object side of the lens (31).

18. An electronic device, characterized in that, Includes a device housing (10) and a camera module (30) as described in claim 17; The camera module (30) is disposed on the device housing (10).

Images