Optical transmission assembly, camera module and electronic device

Abstract

The application relates to an optical transmission assembly, a camera module and electronic equipment. The optical transmission assembly comprises a first prism having a first light entrance surface and a first light exit surface; and a second prism having a second light entrance surface and a second light exit surface, the first light exit surface and the second light entrance surface are oppositely and spacedly arranged, at least part of light rays incident on the first prism from the first light entrance surface can be incident on the second prism in sequence through the first light exit surface and the second light entrance surface, and at least one of the first light exit surface and the second light entrance surface is a curved surface. The optical transmission assembly can participate in light ray adjustment of the camera module while transmitting light rays, reduces the burden of lens adjustment of the camera module, is beneficial to reducing the number of lenses with optical power in the lens, and thus compresses the size of the camera module.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of camera technology, in particular to an optical transmission assembly, a camera module and an electronic device. BACKGROUND

[0002] With the rapid development of camera technology, more and more electronic devices such as smart phones, tablet computers and electronic readers are provided with camera modules to realize the camera function. In the camera module, the prism can transmit the light collected by the lens to the image sensor through reflection and realize the effect of periscopic folding light path, which is beneficial to compress the space occupied by the camera module in the electronic device. However, with the improvement of camera quality, the industry has increasingly high requirements for the imaging quality of the lens in the camera module, which leads to the increase of the axial size of the lens, which is not conducive to the compression of the size of the camera module. SUMMARY

[0003] Embodiments of the present application provide an optical transmission assembly, a camera module and an electronic device to solve the problem of the increase of the axial size of the lens, which is not conducive to the compression of the size of the camera module.

[0004] An optical transmission assembly comprises:

[0005] A first prism has a first light entrance surface and a first light exit surface;

[0006] A second prism has a second light entrance surface and a second light exit surface, the first light exit surface and the second light entrance surface are oppositely and spacedly arranged, at least part of the light incident on the first prism from the first light entrance surface can be incident on the second prism through the first light exit surface and the second light entrance surface in sequence, and at least one of the first light exit surface and the second light entrance surface is a curved surface.

[0007] A camera module comprises a lens, an image sensor and an optical transmission assembly as described above, the lens is opposite to the first light entrance surface, and the optical transmission assembly is configured to receive the emergent light of the lens through the first light entrance surface and transmit the light to the image sensor.

[0008] An electronic device comprises a camera module as described above.

[0009] The aforementioned optical transmission component features a curved surface on at least one of the opposing light-emitting and light-receiving surfaces of the first and second prisms. This allows at least one of these surfaces to adjust the light as it passes through, effectively integrating a lens with optical power into the optical transmission component. This enables the optical transmission component to participate in the light adjustment function of the camera module while transmitting light, reducing the burden on the lens in the camera module and improving its image quality. It also helps reduce the number of lenses with optical power in the lens, thus reducing the axial dimension of the lens and consequently the size of the camera module. Furthermore, by using a curved surface on at least one of the opposing surfaces of the first and second prisms for light adjustment, the curved surface does not increase the space occupied by the optical transmission component, enriching its functionality and further reducing its size. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of an electronic device in some embodiments.

[0012] Figure 2 This is a schematic diagram of the camera module in some embodiments.

[0013] Figure 3 This is a schematic diagram of the camera module in some other embodiments.

[0014] Figure 4 This is a schematic diagram of a camera module with a light-transmitting adhesive structure in some embodiments.

[0015] Figure 5 for Figure 4 A schematic diagram of the transmission path of one of the stray beams of light from the camera module shown.

[0016] Figure 6 for Figure 5 The diagram shows the structural structure of some components of the camera module.

[0017] Figure 7 This is a schematic diagram of a camera module with a light-transmitting adhesive structure in some other embodiments.

[0018] Figure 8 This is a schematic diagram of the structure of the optical transmission component in some embodiments.

[0019] Figure 9 Structure diagram of optical conducting assembly for some embodiments.

[0020] Figure 10 Structure diagram of optical conducting assembly for some embodiments. Figure 2 Structure diagram of optical conducting assembly for some embodiments.

[0021] Figure 11 Structure diagram of electronic device for some embodiments.

[0022] Reference signs:

[0023] 10, electronic device; 11, housing; 111, light inlet hole; 20, camera module; 21, lens; 22, image sensor; 30, optical conducting assembly; 31, first prism; 311, first light inlet surface; 312, first light outlet surface; 313, first reflecting surface; 314, first top surface; 32, second prism; 321, second light inlet surface; 322, second light outlet surface; 323, second reflecting surface; 324, second top surface; 33, third prism; 331, third light inlet surface; 332, third light outlet surface; 333, third reflecting surface; 334, third top surface; 335, first gap; 336, second gap; 34, light-transmitting adhesive structure; 35, light-blocking structure; 36, adhesive structure. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] As used herein, "electronic device" refers to, but is not limited to, a device capable of receiving and / or sending communication signals via any one or more of the following connection means:

[0026] (1) via a wired connection means, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection;

[0027] (2) via a wireless interface means, such as a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter.

[0028] An electronic device configured to communicate via a wireless interface can be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

[0029] (1) Satellite phone or cellular phone;

[0030] (2) A Personal Communications System (PCS) terminal that can combine cellular radio telephone with data processing, fax and data communication capabilities;

[0031] (3) Radio telephone, pager, Internet / intranet access, web browser, notepad, calendar, personal digital assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

[0032] (4) Conventional above-knee and / or palm-sized receivers;

[0033] (5) Conventional knee-mounted and / or handheld wireless telephone transceivers, etc.

[0034] Please see Figure 1 and Figure 2 As shown, Figure 1 and Figure 2 Schematic diagrams of the electronic device 10 and camera module 20 in some embodiments of this application are shown. The electronic device 10 provided in this application includes, but is not limited to, smartphones, tablets, e-readers, etc. The electronic device 10 includes a housing 11 and a camera module 20 disposed within the housing 11. The housing 11 is provided with a light-entry hole 111. The camera module 20 includes a lens 21, an image sensor 22, and an optical transmission component 30. The lens 21 is opposite to the light-entry hole 111 and can collect ambient light through the light-entry hole 111. The optical transmission component 30 can transmit the light collected by the lens 21 to the image sensor 22. The image sensor 22 is used to convert the received light signal into an electrical signal and transmit it to the central processing unit of the electronic device 10, or a chip in the electronic device 10 specifically used for image processing, so that the electronic device 10 can realize the camera function. The lens 21 may include one or more lenses with optical power. Light entering the lens 21 from the light inlet 111 can be emitted after being adjusted by each lens of the lens 21 in sequence. The image sensor 22 may include, but is not limited to, a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS).

[0035] In combination Figure 2 And Figure 3 As shown in FIG. 3, in some embodiments, the light rays exit the optical conduction assembly 30 after one or more reflections, that is, the optical conduction assembly 30 can also change the conduction path of the light rays in the process of conducting the light rays, so as to achieve the effect of folded optical path, which is conducive to compressing the occupied space of the camera module 20. It should be noted that the optical conduction assembly 30 is used to conduct the light rays reflected by the object to be photographed to the image sensor 22, and in this application, the part of the light rays is referred to as imaging light rays, Figure 2 And Figure 3 The dashed arrows shown in FIG. 3 schematically show the conduction path of the chief ray of the imaging light rays in the camera module 20.

[0036] Further, in some embodiments, the optical conduction assembly 30 includes a first prism 31 and a second prism 32, the first prism 31 has a first light entrance surface 311 and a first light exit surface 312, the second prism 32 has a second light entrance surface 321 and a second light exit surface 322, the first light exit surface 312 and the second light entrance surface 321 are oppositely and spacedly arranged, and at least part of the light rays incident on the first prism 31 from the first light entrance surface 311 can be incident on the second prism 32 in sequence through the first light exit surface 312 and the second light entrance surface 321. At least one of the first light exit surface 312 and the second light entrance surface 321 is a curved surface, for example, a spherical surface, an aspherical surface or a free-form surface, that is, at least one of the first light exit surface 312 and the second light entrance surface 321 can play a shaping role of converging or diverging the light rays, so as to adjust the conduction path of the light rays in the camera module 20. Figure 2 In the embodiment shown in FIG. 3, the first light exit surface 312 is a convex surface, and the second light entrance surface 321 is a concave surface. It can be understood that when one of the first light exit surface 312 and the second light entrance surface 321 is a curved surface, the optical conduction assembly 30 is equivalent to integrating a lens with one flat surface and one curved surface at the first light exit surface 312 and the second light entrance surface 321, and when both the first light exit surface 312 and the second light entrance surface 321 are curved surfaces, the optical conduction assembly 30 is equivalent to integrating a lens with both curved surfaces at the first light exit surface 312 and the second light entrance surface 321. In this application, when a certain surface is described as a curved surface, the shape of the surface includes but is not limited to convex or concave shapes of spherical or aspherical surfaces, when one of the first light exit surface 312 and the second light entrance surface 321 is a convex surface, the optical conduction assembly 30 is equivalent to integrating a plano-convex lens, and when both the first light exit surface 312 and the second light entrance surface 321 are convex surfaces, the optical conduction assembly 30 is equivalent to integrating a double-convex lens. Of course, the curved surface design of the first light exit surface 312 and the second light entrance surface 321 is not limited to this, but can also be a concave surface or any other combination of convex and concave surfaces, as long as it can participate in the light adjustment in the camera module 20.

[0037] The optical conduction assembly 30 sets at least one of the first light exit surface 312 and the second light entrance surface 321 opposite to the first prism 31 and the second prism 32 as a curved surface, so that the at least one of the first light exit surface 312 and the second light entrance surface 321 can adjust the light when the light passes through the first light exit surface 312 and the second light entrance surface 321, which is equivalent to the effect of integrating a lens with optical power in the optical conduction assembly 30, so that the optical conduction assembly 30 can participate in the light adjustment of the camera module 20 while conducting the light, reducing the burden of the lens 21 in the camera module 20 to adjust the light, which is conducive to improving the imaging quality of the camera module 20, and also conducive to reducing the number of lenses with optical power in the lens 21, which is conducive to compressing the axial size of the lens 21, thereby compressing the height size of the camera module 20, that is, the size of the camera module 20 in the thickness direction of the electronic device 10, which is conducive to the thin design of the electronic device 10. For example, if the number of lenses in the lens of the traditional camera module is four to meet the demand for light adjustment, at least one curved surface is arranged in the optical conduction assembly 30 to realize the effect of integrating a lens, and the optical conduction assembly 30 can play a role in adjusting the light together with the lens in the lens 21 to meet the demand for imaging quality, so that the number of lenses in the lens 21 can be reduced to three. Of course, according to different imaging needs, other different numbers of lenses can also be arranged in the lens 21, and when different numbers of lenses are arranged in the lens 21, the design of arranging a curved surface in the optical conduction assembly 30 is also conducive to reducing the number of lenses in the lens 21. At the same time, by arranging the curved surface in at least one of the two surfaces opposite to the first prism 31 and the second prism 32 to adjust the light, the arrangement of the curved surface will not increase the occupied space of the optical conduction assembly 30, which is conducive to enriching the function of the optical conduction assembly 30 and compressing the size of the optical conduction assembly 30.

[0038] In some embodiments, at least part of the first light exit surface 312 and the second light entrance surface 321 are adhered, for example, optical glue can be arranged between the first prism 31 and the second prism 32 to adhere at least part of the first light exit surface 312 and the second light entrance surface 321, that is, the first prism 31 and the second prism 32 are glued together. Therefore, the optical conduction assembly 30 provided by the present application can be obtained by splitting one prism into two first prisms 31 and second prisms 32 that are glued together, and at least one of the glued surfaces opposite to the first prism 31 and the second prism 32 is arranged as a curved surface to participate in the adjustment of the light. Therefore, the arrangement of the curved surface is closely combined with the prism structure of the optical conduction assembly 30 and highly integrated, which does not increase the occupied space of the optical conduction assembly 30 while integrating the lens effect.

[0039] Please also refer to Figure 2In some embodiments, the optical conducting assembly 30 further comprises a third prism 33 having a third light-in surface 331 and a third light-out surface 332, the third light-in surface 331 and the second light-out surface 322 are oppositely and distantly arranged, at least part of the light rays emitted from the second prism 32 can enter the third prism 33 from the third light-in surface 331 and be emitted from the third prism 33. At least one of the second light-out surface 322 and the third light-in surface 331 is a curved surface. It can be understood that when one or two of the first light-out surface 312, the second light-in surface 321, the second light-out surface 322 and the third light-in surface 331 is a curved surface, for example, a convex surface or a concave surface, the optical conducting assembly 30 is equivalent to an integrated lens having optical power, which can at least reduce the arrangement of one lens of the lens 21. When three or four of the first light-out surface 312, the second light-in surface 321, the second light-out surface 322 and the third light-in surface 331 is a curved surface, for example, a convex surface or a concave surface, the optical conducting assembly 30 is equivalent to an integrated lens having optical power, which can at least reduce the arrangement of one or two lenses of the lens 21. Thus, when the optical conducting assembly 30 is arranged as three prisms, the number of integrated curved surfaces in the optical conducting assembly 30 can be increased, the number of lenses in the lens 21 can be further reduced, and the axial size of the lens 21 can be effectively compressed.

[0040] In some embodiments, the first prism 31 further has a first reflection surface 313, the first reflection surface 313 and the first light-out surface 312 are oppositely inclined to the first light-in surface 311, the second prism 32 further has a second reflection surface 323 connecting the second light-in surface 321 and the second light-out surface 322, the first light-in surface 311 and the third light-out surface 332 are parallel, the second reflection surface 323 is partially opposite to the first light-in surface 311 and the third light-out surface 332, and the third prism 33 further has a third reflection surface 333, the third light-in surface 331 and the third reflection surface 333 are oppositely inclined to the third light-out surface 332. A first gap 335 is formed between the first light-out surface 312 and the second light-in surface 321, and a second gap 336 is formed between the second light-out surface 322 and the second light-in surface 321.

[0041] At least a portion of the light rays incident on the first prism 31 from the first incident surface 311 are reflected sequentially by the first reflecting surface 313 and the first incident surface 311, then sequentially pass through the first exiting surface 312, the light-transmitting portion of the first gap 335, and the second incident surface 321 before entering the second prism 32. At least a portion of the light rays incident on the second prism 32 are reflected by the second reflecting surface 323 and sequentially pass through the second exiting surface 322, the light-transmitting portion of the second gap 336, and the third incident surface 331 before entering the third prism 33. The light rays incident on the third prism 33 are reflected sequentially by the third exiting surface 332 and the third reflecting surface 333 before exiting from the third exiting surface 332. The first exiting surface 312 may be parallel to the second incident surface 321, and the second exiting surface 322 may be parallel to the third incident surface 331. Therefore, through the rational design of the three prisms, light can undergo five reflections within the optical transmission component 30, effectively extending the light transmission path within the optical transmission component 30 and effectively achieving the effect of folded light path, adapting to the telephoto design of the lens 21, while also helping to reduce the space occupied by the camera module 20. Furthermore, by Figure 2 As can be seen from the imaging light transmission path shown, the first light-emitting surface 312 and the second light-emitting surface 322 are inclined to the first light-incident surface 311, and the first light-emitting surface 312 and the first light-incident surface 311 form an acute angle, while the second light-emitting surface 322 and the first light-incident surface 311 form an obtuse angle. This design can be coordinated with the design of the five-fold reflection transmission path of the optical transmission component 30, so that the main light ray of the imaging light can be incident approximately perpendicularly when it hits the first light-emitting surface 312, the second light-incident surface 321, the second light-emitting surface 322, and the third light-incident surface 331. This allows the curved surfaces in the first light-emitting surface 312, the second light-incident surface 321, the third light-emitting surface 332, and the third light-incident surface 331 to effectively adjust the imaging light and improve the imaging quality of the camera module 20.

[0042] In some embodiments, the angle between the first light-emitting surface 312 and the first light-incident surface 311 is 30°-45°, and the acute angle between the second light-emitting surface 322 and the plane containing the first light-incident surface 311 can also be 30°-45°, so as to adapt to the transmission path of the imaging light, effectively form a folded light path with five reflections, and make full use of the curved surface in the optical transmission component 30 to adjust the light.

[0043] It should be noted that, Figure 2 This is merely an example of the optical path and structural design of the optical transmission component 30 in some embodiments of this application. Figure 2 In the illustrated embodiment, the optical transmission component 30 includes three bonded prisms with a first gap 335 and a second gap 336, and light undergoes five reflections within the optical transmission component 30. (See reference...) Figure 3As shown, in other embodiments, the optical conduction assembly 30 can also be composed of two prisms, a first prism 31 and a second prism 32, a first gap 335 is formed between the first prism 31 and the second prism 32, and according to different designs of the size and angle of the first prism 31 and the second prism 32, the imaging light can be reflected twice, four times, or other number of times within the optical conduction assembly 30 before being emitted. For example, in the embodiment shown, the light is reflected twice within the first prism 31 and the second prism 32, and the optical conduction assembly 30 folds and conducts the light path by five reflections, and at least one of the first light exit surface 312 and the second light entrance surface 321 is a curved surface, which is also beneficial to reducing the number of lenses in the lens 21 and compressing the size of the camera module 20. Of course, the optical conduction assembly 30 can also include other number of prisms to form other number of gaps, as long as the cemented surface in the optical conduction assembly 30 can form a curved surface to participate in the adjustment of the light, while not affecting the conduction of the imaging light, which will not be described in detail herein. Figure 3 As shown, in the embodiment shown, the light is reflected twice within the first prism 31 and the second prism 32, and the optical conduction assembly 30 folds and conducts the light path by five reflections, and at least one of the first light exit surface 312 and the second light entrance surface 321 is a curved surface, which is also beneficial to reducing the number of lenses in the lens 21 and compressing the size of the camera module 20. Of course, the optical conduction assembly 30 can also include other number of prisms to form other number of gaps, as long as the cemented surface in the optical conduction assembly 30 can form a curved surface to participate in the adjustment of the light, while not affecting the conduction of the imaging light, which will not be described in detail herein.

[0044] The conventional optical conduction assembly usually also conducts part of the stray light to the image sensor, affecting the imaging quality of the camera module, and the stray light can come from the sunlight or other strong light sources in the environment, or from the reflection and scattering of the internal structure of the lens and the optical conduction assembly. In order to reduce the stray light and reduce the influence of the stray light on the imaging quality of the camera module, the conventional optical conduction assembly usually slots the prism surface and fills it with light-absorbing substances to reduce the stray light. However, in order to avoid the slot affecting the conduction of the imaging light in the optical conduction assembly, the depth of the slot is usually shallow and cannot cover the stray light conduction path inside the optical conduction assembly, making it difficult to reduce the stray light inside the optical conduction assembly and not conducive to improving the imaging quality.

[0045] In order to solve the above problems, in combination with Figure 4 , Figure 5 and Figure 6 , in some embodiments, the refractive index of the medium in the light-transmitting part of the first gap 335 is less than the refractive index of the first prism 31, and the first light exit surface 312 and the second light entrance surface 321 are inclined to the first light entrance surface 311. The light-transmitting part of the first gap 335 can be understood as the part of the first gap 335 corresponding to the part through which the imaging light transmits, and the position of the light-transmitting part in the first gap 335 can be set according to the design of the light path of the optical conduction assembly 30, as long as the imaging light can pass through the light-transmitting part of the first gap 335 between the first light exit surface 312 and the second light entrance surface 321. When the light passes through the light-transmitting part of the first gap 335, it will pass through the medium in the light-transmitting part of the first gap 335, for example, the light can be emitted from the first light exit surface 312 between the first light exit surface 312 and the medium in the light-transmitting part of the first gap 335, and be incident into the second prism 32 from the medium in the light-transmitting part of the first gap 335 and the second light entrance surface 321.

[0046] in combination with Figure 4 and Figure 5 As can be seen, when the imaging light rays are reflected once or more times in the first prism 31 and then reach the interface between the first light exit surface 312 and the first gap 335, since the first light exit surface 312 and the second light entrance surface 321 are inclined to the first light entrance surface 311, the incidence angle of the imaging light rays on the interface between the first light exit surface 312 and the first gap 335 is not too large, and the imaging light rays are not easy to be reflected on the interface between the first light exit surface 312 and the first gap 335, and can be transmitted through the first gap 335 and the second light entrance surface 321 to the second prism 32. Taking one of the stray light beams reaching the middle part of the first light exit surface 312 as an example, the incidence angle of the stray light on the interface between the first light exit surface 312 and the first gap 335 is usually much larger than that of the imaging light rays. In combination with the design that the refractive index of the medium of the light transmission part of the first gap 335 is smaller than that of the first prism 31, the stray light is transmitted from the optically dense medium of the first prism 31 to the optically sparse medium of the light transmission part of the first gap 335, and the stray light is easy to be totally reflected on the interface between the first light exit surface 312 and the first gap 335 and deviate from the first light exit surface 312, for example, from the first light entrance surface 311 to the first prism 31, thereby achieving the effect of reducing stray light. It can be seen that the means of reducing stray light through the design of the angle and refractive index of the first gap 335 is not easy to be limited by the incidence position of the stray light on the first light exit surface 312, and can also reduce the stray light located in the middle part of the first prism 31, thereby effectively improving the imaging quality of the camera module 20.

[0047] The optical transmission assembly 30 is provided with the first gap 335, the refractive index of the medium of the light transmission part of the first gap 335 is less than the refractive index of the first prism 31, which is conducive to reducing the total reflection critical angle of the light rays from the first prism 31 to the interface between the first prism 31 and the first gap 335, so that the light rays are more likely to be totally reflected at the interface between the first prism 31 and the light transmission part of the first gap 335. In addition, the first light-out surface 312 and the second light-in surface 321 are inclined to the first light-in surface 311, which is conducive to reducing the incidence angle of the imaging light rays on the interface between the first prism 31 and the first gap 335, reducing the reflection probability of the imaging light rays on the interface between the first prism 31 and the first gap 335, reducing the influence of the first gap 335 on the light transmission function of the optical transmission assembly 30, and at the same time, it is also conducive to increasing the incidence angle of stray light on the interface between the first prism 31 and the first gap 335, cooperating with the design of the refractive index of the medium of the light transmission part of the first gap 335, and improving the total reflection probability of the stray light on the interface between the first prism 31 and the first gap 335, thereby achieving the effect of reducing stray light. In addition, the first gap 335 between the first light-out surface 312 and the second light-in surface 321 is designed to reduce stray light, and the design of reducing stray light is closely combined with the structure of the optical transmission assembly 30, which does not increase the occupied space of the optical transmission assembly 30, and is conducive to compressing the size of the optical transmission assembly 30.

[0048] It can be understood that in the embodiment, the first prism 31 and the second prism 32 can also be glued together, that is, at least part of the first light-out surface 312 and the second light-in surface 321 are adhered, so that the optical transmission assembly 30 provided by the embodiment can achieve the effect of reducing stray light by splitting one prism into two first prisms 31 and second prisms 32 that are glued together, and by designing the refractive index and angle of the first gap 335 between the first prism 31 and the second prism 32. Thus, the design of reducing stray light is closely combined with the prism structure of the optical transmission assembly 30 and is highly integrated, and does not increase the occupied space of the optical transmission assembly 30.

[0049] In some embodiments, the optical transmission component 30 satisfies the condition: arcsin(n2 / n1) ≤ π / 2 - a; where n1 is the refractive index of the first prism 31, n2 is the refractive index of the medium in the light-transmitting portion of the first gap 335, and a is the radian of the angle between the first emitting surface 312 and the first incident surface 311. π / 2 - a represents the incident angle of stray light parallel to the first incident surface 311 on the first emitting surface 312, for example, the incident angle of stray light incident on the first emitting surface 312 at the center position of the first incident surface 311. When the above condition is satisfied, the incident angles of stray light parallel to the first incident surface 311 and stray light incident on the first emitting surface 312 at a larger incident angle are both greater than the critical angle for total internal reflection, which increases the probability of total internal reflection of stray light on the first emitting surface 312 and improves the effect of stray light reduction.

[0050] Combination Figure 5 and Figure 6 As shown, in some embodiments, the optical transmission component 30 further includes a light-transmitting adhesive structure 34. The light-transmitting adhesive structure 34 is disposed in the first gap 335 to form a medium for the light-transmitting portion of the first gap 335. The first light-emitting surface 312 and the second light-incident surface 321 are respectively bonded to both sides of the light-transmitting adhesive structure 34. The light-transmitting adhesive structure 34, which has a refractive index lower than that of the first prism 31, not only forms a light-transmitting medium for the light-transmitting portion of the first gap 335, but also serves as an adhesive material between the first prism 31 and the second prism 32, increasing the bonding area between the first prism 31 and the second prism 32. This is beneficial to improving the reliability of the bonding between the first prism 31 and the second prism 32, thereby improving the structural strength of the optical transmission component 30.

[0051] In some embodiments, the optical conduction assembly 30 further comprises a light shielding structure 35 arranged in the first gap 335 and around the light-transmissive adhesive structure 34, that is, the light shielding structure 35 is arranged in the area outside the light transmission part of the first gap 335 corresponding to the imaging light. The light shielding structure 35 includes but is not limited to any applicable light shielding material such as silk printing, light shielding medium film, etc. The light shielding structure 35 arranged in the area outside the light transmission part has better light shielding effect, can effectively absorb, scatter or reflect the stray light incident on the area outside the light transmission part, improve the effect of reducing stray light of the camera module 20, and thus is conducive to improving the imaging quality of the camera module 20. Of course, in other embodiments, the light-transmissive adhesive structure 34 can also fill the entire first gap 335, that is, fill the area outside the light transmission part and the light transmission part, so as to further increase the bonding area of the first prism 31 and the second prism 32 and improve the structural reliability of the optical conduction assembly 30. When the light-transmissive adhesive structure 34 fills the entire first gap 335, the optical conduction assembly 30 can also be provided with a light shielding structure 35 in the area outside the light transmission part of the first gap 335 to improve the effect of reducing stray light. The light shielding structure 35 can be arranged on the part of the light-transmissive adhesive structure 34 outside the light transmission part, for example, stacked on the light-transmissive adhesive structure 34.

[0052] It can be understood that when the first prism 31 is provided with the first reflecting surface 313 to conduct the imaging light by reflection, the stray light generated by the sun or other strong light sources from the outside is also easy to be reflected by the first reflecting surface 313 and then incident on the middle position of the first light-out surface 312, for example, the stray light conduction path shown by the dotted arrow in Figure 5 and Figure 6 By designing the medium refractive index and angle of the first gap 335, the total reflection probability of the part of stray light on the first light-out surface 312 can be improved, and the problem that the traditional camera module cannot reduce the stray light in the middle position is solved.

[0053] Further, in some embodiments, when the optical conduction assembly 30 further comprises the third prism 33, the medium in the light transmission part of the second gap 336 has a refractive index smaller than that of the second prism 32, the second light-out surface 322 and the third light-in surface 331 are inclined to the first light-in surface 311, and at least part of the second light-out surface 322 and the third light-in surface 331 can be arranged to be glued together. The optical conduction assembly 30 is divided into three prisms arranged to be glued together, and the refractive index and angle of the first gap 335 and the second gap 336 formed by the three prisms are designed, so that the first gap 335 and the second gap 336 can reduce the stray light twice, for example Figure 5The stray light conduction path shown by the dotted arrow, when the light not eliminated by the first gap 335 is emitted from the second prism 32 to the interface between the second light emitting surface 322 and the second gap 336, the second gap 336 can eliminate the part of stray light again, effectively improve the elimination effect of stray light, thereby improving the imaging quality of the camera module 20.

[0054] It can be understood that, in Figure 4 and Figure 5 In the embodiment shown, when the light is reflected five times in the optical conduction assembly 30, the first light emitting surface 312 and the second light emitting surface 322 are inclined to the first light incident surface 311, and the first light emitting surface 312 and the first light incident surface 311 form an acute angle, and the second light emitting surface 322 and the first light incident surface 311 form an obtuse angle. The design can cooperate with the design of the five-reflection conduction path of the optical conduction assembly 30, effectively reduce the incident angle of the imaging light when it is emitted to the first light emitting surface 312 and the second light emitting surface 322, reduce the reflection probability of the imaging light on the first light emitting surface 312 and the second light emitting surface 322, thereby reducing the influence of the setting of the first gap 335 and the second gap 336 on the conduction of the imaging light.

[0055] The prisms involved in the present application include but are not limited to optical elements made of plastic or glass, and the materials and refractive indices of the prisms can be the same or different. In some embodiments, the angle between the first light incident surface 311 and the first reflection surface 313, and the angle between the third reflection surface 333 and the third light emitting surface 332 are both 27°-33°, for example, they can be 30°, and the angle between the second light incident surface 321 and the second light emitting surface 322 is an obtuse angle. By setting in this way, the structure of the optical conduction assembly 30 can be reasonably planned, so that the structural design of the optical conduction assembly 30 can adapt to the five-reflection path of the imaging light and the reflection of the first gap 335 and the second gap 336 on the stray light, effectively eliminating the stray light while not affecting the conduction of the imaging light.

[0056] In the present embodiment, the angle between the first light emitting surface 312 and the first light incident surface 311 is 30°-45°, and the acute angle between the second light emitting surface 322 and the plane where the first light incident surface 311 is located can also be 30°-45°, to adapt to the conduction path of the imaging light, reduce the influence of the first gap 335 and the second gap 336 on the conduction process of the imaging light, while increasing the incident angle of the stray light on the first light emitting surface 312 and the second light emitting surface 322, and improving the reflection probability of the stray light, thereby improving the effect of eliminating the stray light.

[0057] In some embodiments, the optical conduction assembly 30 satisfies: n1 / n2≥1.22. According to the calculation formula of the critical angle of total reflection, when the above condition is satisfied, the stray light incident on the first light exit surface 312 can be totally reflected on the first light exit surface 312 when the exit angle of the stray light on the first light exit surface 312 is greater than or equal to 45°, thereby being reduced, and thus the stray light can be effectively reduced in cooperation with the angle range between the first light exit surface 312 and the first light entrance surface 311, and the reduction effect of the stray light is improved.

[0058] In some embodiments, the optical conduction assembly 30 satisfies: 1.6≤n1≤2.2; 1.3≤n2≤1.6, for example, the refractive index of the first prism 31 can be 2.05, and the refractive index of the medium of the light transmission part of the first gap 335 can be 1.4. In some embodiments, the vertical distance between the first light exit surface 312 and the second light entrance surface 321, i.e., the medium thickness of the light transmission part of the first gap 335, is 1.5um-15um, which can provide sufficient distance for the reflection of stray light, and at the same time, the influence of the setting of the first gap 335 on the structural reliability and volume of the optical conduction assembly 30 is reduced. It should be noted that the relationship between the refractive index of the second prism 32 and the medium of the light transmission part of the second gap 336 can be obtained by referring to the relationship between the refractive index of the first prism 31 and the medium of the light transmission part of the first gap 335, the angle relationship between the second light exit surface 322 and the third light exit surface 332 can be obtained by referring to the angle relationship between the first light exit surface 312 and the first light entrance surface 311, and the medium thickness of the light transmission part of the second gap 336 can also be obtained by referring to the medium thickness of the light transmission part of the first gap 335, as long as the second gap 336 can also reduce at least part of the stray light by total reflection, which will not be described herein.

[0059] It should be noted that in the present embodiment, the optical path design of the optical conduction assembly 30 is not limited to Figure 4 It should be noted that in the present embodiment, the optical path design of the optical conduction assembly 30 is not limited to Figure 7 In other embodiments, the optical conduction assembly 30 can also be composed of two prisms, the first prism 31 and the second prism 32 form the first gap 335 therebetween, and according to different designs of the size and angle of the first prism 31 and the second prism 32, the imaging light can be reflected twice, four times, or other number of times in the optical conduction assembly 30 before being emitted. Of course, the optical conduction assembly 30 can also include other number of prisms to form other number of gaps, as long as the refractive index of the medium of the gap between the two adjacent prisms and the angle design can reduce the stray light without affecting the conduction of the imaging light, which will not be described herein.

[0060] It should be noted that in the present embodiment, the optical path design of the optical conduction assembly 30 is not limited to Figure 8As shown, in some embodiments, the second light-incident surface 321 and the second light-exiting surface 322 are connected, so the second prism 32 can be approximately triangular in shape, with the second light-incident surface 321, the second light-exiting surface 322, and the second reflecting surface 323 being the three sides of the second prism 32. (Reference) Figure 9 As shown, in some embodiments, the second light-incident surface 321 and the second light-exiting surface 322 are spaced apart. The second prism 32 further includes a second top surface 324 connected to the second light-incident surface 321 and the second light-exiting surface 322 and opposite to the second reflecting surface 323. The second top surface 324 may be parallel to the second reflecting surface 323, so the second prism 32 may be approximately a trapezoidal prism shape. The second top surface 324 and the second reflecting surface 323 correspond to the top and bottom surfaces of the trapezoid, respectively. In some embodiments, the second top surface 324 is coplanar with the first light-incident surface 311 and the third light-exiting surface 332, which is beneficial to improving the compactness and regularity of the optical transmission component 30 structure and facilitating the assembly of the optical transmission component 30.

[0061] refer to Figure 8 As shown, in some embodiments, the first reflecting surface 313 is connected to the first light-emitting surface 312, and the third light-incident surface 331 is connected to the third reflecting surface 333. Therefore, both the first prism 31 and the second prism 32 can be approximately triangular prisms. (Reference) Figure 9 As shown, in some embodiments, the first reflecting surface 313 is spaced apart from the first emitting surface 312. The first prism 31 further includes a first top surface 314 connected to the first reflecting surface 313 and the first emitting surface 312. The third incident surface 331 is spaced apart from the third reflecting surface 333. The third prism 33 further includes a third top surface 334 connected to the third incident surface 331 and the third reflecting surface 333. The first top surface 314 may be parallel to the first incident surface 311, and the third top surface 334 may be parallel to the third emitting surface 332. Thus, the first prism 31 and the third prism 33 may be approximately in the shape of a quadrangular prism with a trapezoidal cross-section. In some embodiments, the first top surface 314, the second reflecting surface 323, and the third top surface 334 are coplanar, which is beneficial to improving the compactness and regularity of the optical transmission component 30 structure and facilitating the assembly of the optical transmission component 30. Of course, the specific shapes of the first prism 31, the second prism 32 and the third prism 33 can be designed according to the length of the transmission path of the imaging light and the angle between the first light-emitting surface 312, the second light-emitting surface 322 and the first light-incident surface 311, as long as they can achieve the corresponding functions of guiding light and reducing stray light.

[0062] Please see Figure 2 , Figure 3 and Figure 10As shown, in some other embodiments provided in the present application, the light transmission part of the first gap 335 can be an air medium. Then the optical conduction assembly 30 can further include a bonding structure 36 arranged in the first gap 335 and around the light transmission part of the first gap 335, i.e. the bonding structure 36 is arranged around the air medium of the first gap 335, and the two sides of the bonding structure 36 are bonded to the first light exit surface 312 and the second light entrance surface 321 respectively. The bonding structure 36 realizes the bonding of the first prism 31 and the second prism 32, and makes the light transmission part of the first gap 335 form an air medium, the refractive index of which is close to 1, and there is a greater refractive index difference between the first prism 31 and the light transmission adhesive structure 34, which can effectively reduce the total reflection critical angle of the stray light between the first light exit surface 312 and the air medium, and improve the probability of total reflection of the stray light on the first light exit surface 312, thereby further improving the effect of reducing stray light. In the present embodiment, the bonding structure 36 can be made of light shielding material, for example, the bonding structure 36 includes but is not limited to black glue and the like, so that the bonding structure 36 can effectively absorb stray light outside the light transmission part of the first gap 335, thereby improving the effect of reducing stray light. Of course, the bonding structure 36 can also be made of light transmission adhesive such as optical glue, and then the optical conduction assembly 30 can further include a light shielding structure 35 such as silk printing and light shielding medium film, which is arranged in the first gap 335 and around the light transmission part of the first gap 335, and the light shielding structure 35 can be arranged in layers with the bonding structure 36, and can also absorb stray light outside the light transmission part of the first gap 335.

[0063] In Figure 2 and Figure 4 the embodiments shown, the medium of the light transmission part of the second gap 336 and the structure arranged outside the light transmission part can be obtained by referring to the first gap 335, and the medium of the light transmission part of the first gap 335 and the second gap 336 can be the same or different, for example, the medium of the light transmission part of the first gap 335 and the second gap 336 can be air medium and light transmission adhesive structure 34 respectively. And no matter what medium is used for the light transmission part of the first gap 335 and the second gap 336, one or more of the first light exit surface 312 and the second light entrance surface 321 forming the first gap 335 and the second light exit surface 322 and the third light exit surface 332 forming the second gap 336 can be curved surfaces, so as to reduce the number of lenses of the lens 21 while reducing stray light, and compress the size of the camera module 20.

[0064] Reference Figure 11 , Figure 11A structural schematic diagram of an electronic device 10 is provided for an embodiment of the present application. The electronic device 10 can include a radio frequency (RF) circuit 501, a memory 502 including one or more computer readable storage media, an input unit 503, a display unit 504, a sensor 505, an audio circuit 506, a wireless fidelity (WiFi) module 507, a processor 508 including one or more processing cores, and a power supply 509, and the like. Those skilled in the art can understand that the structure of the electronic device 10 shown in the figure does not constitute a limitation on the electronic device 10, and can include more or fewer components than shown, or combine certain components, or different component arrangements. Figure 11 The structure of the electronic device 10 shown in the figure does not constitute a limitation on the electronic device 10, and can include more or fewer components than shown, or combine certain components, or different component arrangements.

[0065] The radio frequency circuit 501 can be used to receive and send information or signals in a call process. In particular, after receiving the downlink information of the base station, the radio frequency circuit 501 delivers it to the processor 508 for processing. In addition, the radio frequency circuit 501 sends data related to the uplink to the base station. Generally, the radio frequency circuit 501 includes, but is not limited to, an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (SIM) card, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuit 501 can also communicate with a network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to global system for mobile communication (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), long term evolution (LTE), email, short messaging service (SMS), and the like.

[0066] The memory 502 can be used to store applications and data. The applications stored in the memory 502 include executable code. The applications can constitute various functional modules. The processor 508 executes various functional applications and data processing by running the applications stored in the memory 502. The memory 502 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required by a function (such as a sound playing function, an image playing function, etc.), and the like; and the data storage area can store data created according to the use of the electronic device 10 (such as audio data, a phone book, etc.), and the like. In addition, the memory 502 can include a high-speed random access memory, and can further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device. Accordingly, the memory 502 can further include a memory controller to provide the processor 508 and the input unit 503 with access to the memory 502.

[0067] The input unit 503 can be used to receive inputted numbers, character information or user feature information (such as a fingerprint), and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. Specifically, in one specific embodiment, the input unit 503 can include a touch-sensitive surface and other input devices. The touch-sensitive surface, also called a touch display screen or touchpad, can collect user touch operations (such as user operations using a finger, a stylus, or any suitable object or accessory on or near the touch-sensitive surface) on or near it, and drive the corresponding connection device according to the pre-set program. Optionally, the touch-sensitive surface can include two parts of a touch detection device and a touch controller. The touch detection device detects the user's touch position and detects the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into touch coordinates, and sends it to the processor 508, and can also receive commands from the processor 508 and execute them.

[0068] The display unit 504 can be used to display information input by a user or provided to the user, as well as various graphical user interfaces of the electronic device 10, which can be composed of graphics, text, icons, video, and any combination thereof. The display unit 504 can include a display panel. Optionally, the display panel can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Further, a touch-sensitive surface can cover the display panel, which, when a touch operation is detected thereon or in the vicinity thereof, transmits to the processor 508 to determine the type of touch event, and then the processor 508 provides corresponding visual output on the display panel according to the type of touch event. Although in the above description, the touch-sensitive surface and the display panel are implemented as two independent components to realize input and output functions, in some embodiments, the touch-sensitive surface and the display panel can be integrated to realize input and output functions. Figure 11

[0069] The electronic device 10 can also include at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor can include an ambient light sensor that can adjust the brightness of the display panel according to the brightness of ambient light, and a proximity sensor that can turn off the display panel and / or backlight when the electronic device 10 is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally three axes), and when at rest, can detect the magnitude and direction of gravity, which can be used for applications such as identifying the posture of the phone (such as switching between landscape and portrait, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), and the like. As for other sensors that the electronic device 10 can also be configured, such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like, they will not be described here.

[0070] The audio circuit 506 can provide an audio interface between the user and the electronic device 10 through the speaker and the microphone. The audio circuit 506 can convert received audio data into an electrical signal, transmit it to the speaker, and convert it into a sound signal output by the speaker. On the other hand, the microphone collects sound signals and converts them into electrical signals, which are received by the audio circuit 506 and converted into audio data. The audio data is output to the processor 508 for processing, and then transmitted to another electronic device 10 via the radio frequency circuit 501, or output to the memory 502 for further processing. The audio circuit 506 can also include a headset jack to provide communication between an external headset and the electronic device 10.

[0071] ​Wireless Fidelity (WiFi) belongs to the short-range wireless transmission technology, and the wireless Fidelity module 507 can help the user to send and receive e-mails, browse web pages, and access streaming media, etc. It provides the user with wireless broadband Internet access. Although Figure 11 The wireless Fidelity module 507 is shown, but it is understood that it does not belong to the necessary components of the electronic device 10, and can be omitted as needed without changing the essence of the application.

[0072] The processor 508 is the control center of the electronic device 10, which connects all parts of the electronic device 10 through various interfaces and lines, executes various functions of the electronic device 10 and processes data by running or executing the application stored in the memory 502, and calling the data stored in the memory 502, thereby overall monitoring the electronic device 10. Optionally, the processor 508 can include one or more processing cores; preferably, the processor 508 can integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application program, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 508.

[0073] The electronic device 10 further includes a power supply 509 for supplying power to each component. Preferably, the power supply 509 can be logically connected to the processor 508 through the power management system, so as to realize the functions of managing charging, discharging, and power consumption management, etc. through the power management system. The power supply 509 can also include one or more than one direct or alternating current power supply, a recharging system, a power supply failure detection circuit, a power supply converter or inverter, a power supply state indicator, etc. Any component.

[0074] Although Figure 11 The electronic device 10 can also include a Bluetooth module, etc. which are not shown in the embodiment, and will not be described here. In specific implementation, the above various modules can be realized as independent entities, or can be combined as the same or several entities, and the specific implementation of the above various modules can refer to the method embodiments described above, and will not be described here.

[0075] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0076] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An optical transmission component, characterized in that, include: The first prism has a first light-incident surface and a first light-outcrying surface; The second prism has a second light-incident surface and a second light-outcident surface. The first light-outcident surface and the second light-incident surface are opposite to each other and spaced apart. At least a portion of the light rays incident on the first prism from the first light-incident surface can sequentially pass through the first light-outcident surface and the second light-incident surface to enter the second prism. At least one of the first light-outcident surface and the second light-incident surface is a curved surface. A first gap is formed between the first light-emitting surface and the second light-incident surface. The refractive index of the medium in the light-transmitting portion of the first gap is less than the refractive index of the first prism. The first light-emitting surface and the second light-incident surface are inclined to the first light-incident surface. The angle between the first light-emitting surface and the first light-incident surface is 30°-45°. The optical transmission component satisfies the following condition: arcsin(n2 / n1) ≤ π / 2 - a; n1 / n2 ≥ 1.22; 1.6≤n1≤2.2； 1.3≤n2≤1.6； Wherein, n1 is the refractive index of the first prism, n2 is the refractive index of the medium in the light-transmitting portion of the first gap, and a is the radian of the angle between the first light-emitting surface and the first light-incident surface.

2. The optical transmission component according to claim 1, characterized in that, At least one of the first light-emitting surface and the second light-incident surface is a convex surface, or at least one of the first light-emitting surface and the second light-incident surface is a concave surface.

3. The optical transmission component according to claim 1, characterized in that, At least a portion of the first light-emitting surface and the second light-incident surface are bonded together.

4. The optical transmission component according to claim 1, characterized in that, The optical transmission component further includes a third prism, which has a third light-incident surface and a third light-outcrystal surface. The third light-incident surface and the second light-outcrystal surface are opposite to each other and spaced apart. At least a portion of the light rays emitted from the second light-outcrystal surface can enter the third prism from the third light-incident surface and exit from the third light-outcrystal surface.

5. The optical transmission component according to claim 4, characterized in that, At least one of the second light-emitting surface and the third light-incident surface is a curved surface.

6. The optical transmission component according to claim 4, characterized in that, The first prism also has a first reflecting surface, and both the first reflecting surface and the first light-emitting surface are inclined to face the first light-incident surface. The second prism also has a second reflecting surface connecting the second light-incident surface and the second light-emitting surface. The first light-incident surface and the third light-emitting surface are parallel to each other. The second reflecting surface is partially opposite to both the first light-incident surface and the third light-emitting surface. The third prism also has a third reflecting surface, and both the third light-incident surface and the third reflecting surface are inclined to face the third light-emitting surface. At least a portion of the light rays incident on the first prism from the first incident surface can be reflected sequentially by the first reflecting surface and the first incident surface, and then sequentially pass through the first emitting surface and the second incident surface to enter the second prism. At least a portion of the light rays incident on the second prism can be reflected by the second reflecting surface and sequentially pass through the second emitting surface and the third incident surface to enter the third prism. The light rays incident on the third prism can be reflected sequentially by the third emitting surface and the third reflecting surface and then exit from the third emitting surface.

7. The optical transmission component according to claim 6, characterized in that, A second gap is formed between the second light-emitting surface and the third light-incident surface. The refractive index of the medium in the light-transmitting portion of the second gap is less than the refractive index of the second prism. The second light-emitting surface and the third light-incident surface are inclined to the first light-incident surface.

8. The optical transmission component according to claim 7, characterized in that, The angle between the first light-incident surface and the first reflective surface, and the angle between the third reflective surface and the third light-emitting surface are both 27°-33°, and the angle between the second light-incident surface and the second light-emitting surface is an obtuse angle.

9. The optical transmission component according to claim 6, characterized in that, The second light-incident surface and the second light-outceasing surface are connected.

10. The optical transmission component according to claim 6, characterized in that, The second light-incident surface and the second light-exiting surface are spaced apart. The second prism also includes a second top surface connected to the second light-incident surface and the second light-exiting surface and opposite to the second reflective surface. The second top surface is coplanar with the first light-incident surface and the third light-exiting surface.

11. The optical transmission component according to claim 6, characterized in that, The first reflective surface is connected to the first light-emitting surface, and the third light-incident surface is connected to the third reflective surface.

12. The optical transmission component according to claim 6, characterized in that, The first reflecting surface is spaced apart from the first emitting surface. The first prism further includes a first top surface connected to the first reflecting surface and the first emitting surface. The third incident surface is spaced apart from the third reflecting surface. The third prism further includes a third top surface connected to the third incident surface and the third reflecting surface. The first top surface, the second reflecting surface, and the third top surface are coplanar.

13. The optical transmission component according to claim 1, characterized in that, The optical transmission component further includes an adhesive structure, which is disposed in the first gap and surrounds the light-transmitting portion of the first gap. The first light-emitting surface and the second light-incident surface are respectively adhered to both sides of the adhesive structure.

14. The optical transmission component according to claim 13, characterized in that, The bonding structure is made of a light-shielding material; or, the optical transmission component further includes a light-shielding structure, which is disposed in the first gap and surrounds the light-transmitting portion of the first gap.

15. The optical transmission component according to claim 1, characterized in that, The optical transmission component further includes a light-transmitting adhesive structure, which is disposed in the first gap to form a medium for the light-transmitting portion of the first gap, and the first light-emitting surface and the second light-incident surface are respectively bonded to both sides of the light-transmitting adhesive structure.

16. The optical transmission component according to claim 15, characterized in that, The optical transmission component further includes a light-shielding structure, which is disposed in the first gap and surrounds the light-transmitting adhesive structure.

17. The optical transmission component according to claim 1, characterized in that, The vertical distance between the first light-emitting surface and the second light-incident surface is 1.5um-15um.

18. A camera module, characterized in that, The device includes a lens, an image sensor, and an optical transmission component as described in any one of claims 1-17, wherein the lens is opposite to the first light-incident surface, and the optical transmission component is configured to receive light emitted from the lens through the first light-incident surface and transmit the light to the image sensor.

19. An electronic device, characterized in that, Includes the camera module as described in claim 18.

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