CN113542569A

CN113542569A - Camera module and electronic equipment

Info

Publication number: CN113542569A
Application number: CN202110811590.6A
Authority: CN
Inventors: 彭雄辉
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-10-22
Anticipated expiration: 2041-07-16
Also published as: CN113542569B; WO2023284377A1

Abstract

The application provides a camera module and electronic equipment. The camera module comprises a lens, an annular lampshade and at least one light source. The annular lampshade is provided with a first surface and a second surface which are arranged in a back-to-back mode, the annular lampshade is further provided with a through hole which penetrates through the first surface and the second surface, and at least part of the lens is arranged in the through hole. The second surface has a plurality of light emitting areas arranged at intervals along the circumferential direction of the annular lampshade. The light source is arranged opposite to the first surface, light rays emitted by the light source are emitted into the first surface and are emitted out through the light emitting areas to form a plurality of emergent light beams, the emergent light beams are converged in a microspur range to form a converged light beam, and the spot area of the converged light beam is larger than or equal to the viewing area of the microspur range. This application can carry out the light filling at the microspur within range, promotes the microspur and shoots the effect.

Description

Camera module and electronic equipment

Technical Field

The application relates to the technical field of optics, concretely relates to camera module and electronic equipment.

Background

The shooting light supplement of the electronic equipment is an important factor influencing the imaging quality, such as main shooting flash light supplement, macro shooting light supplement of macro shooting, and the like, and the brightness in the imaging range is adjusted through the light supplement to form a higher-quality image. With the development of light and thin of electronic equipment, how to supplement light in a microspur range and improve the microspur shooting effect becomes a technical problem to be solved.

Disclosure of Invention

The application provides a carry out the light filling at the microspur within range, promote camera module and electronic equipment of microspur shooting effect.

In a first aspect, the present application provides a camera module, including:

a camera module lens;

the camera module comprises an annular lampshade, a lens and a lens module, wherein the annular lampshade is provided with a first surface and a second surface which are arranged in an opposite way, the annular lampshade is also provided with a through hole which penetrates through the first surface and the second surface, and at least part of the lens of the camera module is arranged in the through hole; the second surface is provided with a plurality of light emitting areas arranged at intervals along the circumferential direction of the annular lampshade; and

the light emitted by the light source is emitted through the first surface and is emitted through the light emitting areas to form a plurality of emergent light beams, wherein at least two emergent light beams are converged in a macro range to form a converged light beam, and the spot area of the converged light beam in a macro shooting mode of the camera module is larger than or equal to the viewing area of the macro range macro shooting mode.

In a second aspect, the present application provides an electronic device, including the camera module and the camera module, the electronic device further includes a controller, the controller is electrically connected to the camera module and the light source, and the controller is configured to control the light source to be turned on when the camera module is in a flash mode, a flashlight mode or a macro shooting mode;

the camera module further comprises an image sensor, and the controller is further used for adjusting the brightness of the light source according to the light intensity collected by the image sensor.

The application provides a camera module, through set up annular lamp shade and set up the light source in annular lamp shade below camera lens week side, the light of light source transmission jets into and jets out through a plurality of light areas of going out through annular lamp shade's first face, form a plurality of light beams of exitting, the light beam of exitting intersects at the microspur within range and forms the light beam that intersects, the facula area of light beam that intersects is greater than or equal to the area of finding a view of microspur within range, in order to realize that the camera module carries out the light filling at the microspur within range, promote the microspur and shoot the effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a camera module according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 3 is a schematic view illustrating a structure of a first camera module according to this embodiment;

FIG. 4 is a side view of the annular shaped lamp enclosure shown in FIG. 3;

FIG. 5 is a first partial perspective view of the camera module shown in FIG. 1;

FIG. 6 is a cross-sectional view of the camera module shown in FIG. 5 taken along line B-B;

FIG. 7 is a schematic view of a portion of the optical path emitted by the light source in the camera module of FIG. 3;

FIG. 8 is a second partial perspective view of the camera module shown in FIG. 1;

FIG. 9 is a third partial perspective view of the camera module shown in FIG. 1;

FIG. 10 is a fourth partial perspective view of the camera module shown in FIG. 1;

FIG. 11 is a fifth partial perspective view of the camera module of FIG. 1;

FIG. 12 is a schematic diagram of specific light paths emitted by light sources in a camera module shown in FIG. 7;

FIG. 13 is a partial perspective view of particular details of the camera module shown in FIG. 9;

FIG. 14 is a partial perspective view of a detail of the camera module shown in FIG. 5;

FIG. 15 is a schematic diagram of the specific optical paths emitted by the light sources in the alternative camera module shown in FIG. 7;

fig. 16 is a schematic view of an arrangement structure of a first boss in a second camera module provided in this embodiment;

fig. 17 is a partially enlarged perspective view of a first boss of the second camera module provided in this embodiment;

fig. 18 is a schematic view of a second camera module according to this embodiment in a disassembled structure;

fig. 19 is a partial perspective view of the second camera module shown in fig. 18;

FIG. 20 is a schematic view of a portion of the optical path of the annular lampshade of FIG. 18 in an unfolded state to two dimensions;

FIG. 21 is a partial optical path schematic view of the alternative annular lampshade of FIG. 18 in two dimensions;

FIG. 22 is a perspective view of the annular lamp casing of FIG. 21;

FIG. 23 is a perspective view of the combination of the annular lamp housing and light source of FIG. 21;

FIG. 24 is a partial perspective view of the camera module with the annular shaped bezel of FIG. 23;

FIG. 25 is a cross-sectional view taken along line Y1 of FIG. 23;

FIG. 26 is a cross-sectional view taken along line X1 of FIG. 23;

FIG. 27 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 28 is a simulated light spot diagram of two light sources and an annular lampshade at an object plane distance of 1 m;

FIG. 29 is a simulated speckle pattern of two light sources and an annular lampshade at an object plane distance of 5 mm;

FIG. 30 is a simulated spot diagram of two light sources and an annular lampshade at an object plane distance of 10 mm.

The specification label explains that:

a camera module 100; an annular lamp housing 20; a light source 40; a lens 10; an image sensor 13; a first face 21; a second face 22; a through hole 20 a; an outer annular surface 24; an inner annular surface 25; (ii) a A first light emission region 22 a; a second light emission region 22 b; a transition region 26; a first transition region 26 a; a second transition region 26 b; an injection part 211; a light transmitting portion 212; a first conductor 213; a second conductor 214; a first end 212a of the light transmitting portion; the second end 212b of the light transmitting portion; a first sub-conductor 214 a; a second sub-conductor 214 b; a first sub light exit region 22 c; a second sub light outgoing region 22 d; a first boss 215; a first mesa 215 a; a first peripheral side 215 b; a first dielectric layer 231; a second dielectric layer 232; a first plane 234; an inclined surface group 235; a second plane 236; the first inclined surface 235 a; the second inclined surface 235 b; a third dielectric layer 237; a reflection section 238; the reflective strips 251; a first reflective surface 252; a second reflective surface 253; a reflective ring 254; a third reflective surface 255; a fourth reflective surface 256; a first light source 41; a second light source 42; the first injection portion 211 a; the second injection portion 211 b; the first conductive portion 212 a; a second conductive portion 212 b; a support flexible circuit board 51; a support plate 52; the first opening hole 51 a; the second opening 52 a; the accommodating space 53 a; a rear cover 54; a light-transmissive cover plate 55; the mounting holes 54 a; a positioning boss 241; a positioning groove 54 b; a glue layer 56.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The embodiments listed in the present application may be appropriately combined with each other.

Referring to fig. 1, a camera module 100 according to an embodiment of the present disclosure is provided. The camera module 100 is used for taking pictures, recording videos, and the like. Referring to fig. 2, the camera module 100 is applied to an electronic device 1000. The electronic device 1000 includes, but is not limited to, products with a camera function, such as a mobile phone, a camera, a tablet computer, a Personal Digital Assistant (PDA), a smart wearable device, a portable computer, and the like.

Referring to fig. 3, the camera module 100 at least includes a lens 10, an annular lampshade 20 and at least one light source 40.

Referring to fig. 3, optionally, the camera module 100 further includes a lens holder 11 and an image sensor 13 disposed in the lens holder 11 (see fig. 6). In the present application, a line along the axial direction of the lens 10 and passing through the center of the lens 10 is defined as an optical axis. The side of the lens 10 facing the subject is the object side, and the side of the lens 10 facing away from the subject, i.e., the side facing the image sensor 13, is the image side. For the convenience of the following description, the optical axis direction of the camera module 100 is defined as the Z axis. The direction of the Z axis towards the object side is a positive Z axis direction, and the direction of the Z axis towards the image side is a negative Z axis direction.

Referring to fig. 3 and 4, the annular lampshade 20 has a first surface 21 and a second surface 22 opposite to each other. The first surface 21 is a surface facing the image side, and the second surface 22 is a surface facing the object side. The first surface 21 is a surface on which light from the light source 40 is incident, and the second surface 22 is a surface on which light is emitted. The annular lamp housing 20 further has a through hole 20a penetrating the first face 21 and the second face 22. The through hole 20a penetrates in the Z-axis direction. The shape and size of the through hole 20a are not specifically limited in the present application, and optionally, the through hole 20a is a circular hole.

Optionally, the annular lampshade 20 is made of a light-transmitting material, for example, a lens, and has a light transmittance of 98% or more and a high light transmission efficiency.

Referring to fig. 3 and 4, the annular lampshade 20 further has an outer annular surface 24 and an inner annular surface 25 enclosing between the first surface 21 and the second surface 22. Optionally, the outer annular surface 24 and the inner annular surface 25 are reflective surfaces, for example, atomization processing is performed on the outer annular surface 24 and the inner annular surface 25 to form a diffuse reflection structure, or a reflective coating (e.g., a metallic silver coating or the like) is coated on the outer annular surface 24 and the inner annular surface 25 to achieve total reflection of light, so as to reduce loss of light emitted from an unnecessary surface and improve an emission rate of light emitted from the first surface 21; alternatively, the outer and inner

annular surfaces

24, 25 may be provided with light blocking layers (e.g., dark ink, etc.) to reduce the loss of light from the undesired surfaces and increase the brightness of light from the second surface 22.

Referring to fig. 5 and 6, at least a portion of the lens 10 is disposed in the through hole 20 a. Specifically, the size of the lens 10 is matched with the size of the through hole 20a, and the lens 10 is accommodated in the through hole 20 a. The annular lamp housing 20 surrounds the lens 10.

The number of the light sources 40 is not particularly limited in the present application. Referring to fig. 3, the number of the light sources 40 is two, and the two light sources 40 are uniformly arranged below the first surface 21 (with the orientation of fig. 3 as a reference).

In other embodiments, the number of the light sources 40 is plural (two or more), and the plural light sources 40 are disposed around the circumference side of the lens 10. The plurality of light sources 40 may be arranged in a uniform or non-uniform manner. In the present embodiment, the plurality of light sources 40 are uniformly arranged and disposed around the circumference of the lens 10 to improve the uniformity of the light emitted from the annular lamp housing 20.

Optionally, the light emitting surface of the light source 40 is disposed toward the first surface 21 of the annular lampshade 20. Specifically, the light emitting direction of the light source 40 may be the same as the optical axis, or may be slightly shifted from the optical axis by a small angle, for example, greater than 0 ° and less than 10 °, wherein 10 ° is merely exemplary and not limited to this value.

Alternatively, for one of the plurality of light sources 40, light emitted by the light source 40 enters through the first face 21 (e.g., a portion of the first face 21) and exits through multiple regions of the second face 22. The regions where the light beam is emitted from the second surface 22 are referred to as light emission regions (for example, a first light emission region 22a and a second light emission region 22b in fig. 5, and a first light emission region 22a, a second light emission region 22b, and a third light emission region 22c in fig. 10). In other words, one light source 40 corresponds to a plurality of light emitting regions, and the number of light emitting regions corresponding to one light source 40 is not specifically limited in this application, and is, for example, two, three, four, five, and the like.

The second surface 22 has a plurality of light exit regions provided at intervals in the circumferential direction of the annular lamp cover 20. The light fluxes emitted from the plurality of light-emitting regions form a plurality of outgoing light fluxes (e.g., the light flux S1 and the light flux S2 in fig. 7). The emergent light beams are converged in the macro range H1 to form a converged light beam (see the convergence region of the light beam S1 and the light beam S2 in fig. 7). The spot area (see the area of the region indicated by M in fig. 7) of the merged light beam is greater than or equal to the viewing area of the macro range H1.

The spot area size in the macro range can be determined by setting the pitch of the light exit region and the exit angle of the light beam exiting from the light exit region, and the spot area is set to be larger than the minimum viewing area of the macro range H1.

The camera module 100 is a camera having a macro shooting function. Under the macro photography, the distance between the electronic equipment and the shooting object is very small, and the electronic equipment can shelter from the light of macro photography, so, the imaging effect that leads to the macro photography is poor. In the prior art, part of electronic devices adopt a flash lamp to perform light supplement during macro photography, but the brightness of the flash lamp in a range from illumination to macro photography is not uniform, for example, the brightness close to the flash lamp is high, and the brightness far away from the flash lamp is low, so that the uniformity of light supplement is poor, and the macro photography effect is poor. Some electronic equipment adopt light source cooperation lamp shade, become the mode of light source with the light of light source through the lamp shade and carry out the light filling, but the position that the lamp shade corresponds the light source can be too bright, and the position of keeping away from the light source still can the undersize, can only improve the light filling homogeneity to a certain extent. In order to further improve the uniformity of light supplement, part of the electronic devices increase the number of the light sources to reduce the distance between the adjacent light sources, but the minimum driving current of the electronic devices is limited, the brightness of a single light source cannot be adjusted to be small without limitation, when the number of the light sources is too large, the central brightness of the light supplement area of the lampshade is too bright, so that overexposure is caused, and the excessive number of the light sources is not favorable for saving cost and electric quantity.

The application provides a camera module 100, set up annular lamp shade 20 and set up the light source in annular lamp shade 20 below through setting up on camera lens 10 week side, the light of light source 40 transmission jets into and jets out through a plurality of light-emitting area through annular lamp shade 20's first face 21, form a plurality of outgoing beam, outgoing beam intersects in microspur scope H1 and forms intersection light beam, intersection light beam's facula area is greater than or equal to the area of viewing in microspur scope H1, intersection light beam's facula can cover the picture of viewing in microspur scope H1 completely, in order to realize that camera module 100 carries out the light filling at microspur scope H1. Because the light spots in the microspur range H1 are formed by the intersection of a plurality of light beams, compared with a single light beam, the light spot area brightness uniformity is effectively improved, the light supplement brightness uniformity in the microspur range H1 is further improved, meanwhile, a plurality of light-emitting areas disperse and emit light of one light source, the light spot brightness in the microspur range H1 can be effectively balanced and irradiated, the central area is prevented from being too bright, the number of the light sources 40 can be effectively saved, and the cost is saved.

Referring to fig. 5, the present application defines a region between two adjacent light-emitting regions on the second surface 22 as a transition region 26, wherein the transition region 26 does not emit light theoretically, and it can be understood that, because the light-emitting angle of the light source 40 has a certain range, and considering the processing of the annular lampshade 20, a part of light is also emitted in the transition region 26, but the light-emitting brightness of the transition region 26 is far less than the light-emitting brightness of the light-emitting regions (22a, 22b), for example, the ratio of the light-emitting brightness of the light-emitting regions (22a, 22b) to the light-emitting brightness of the transition region 26 is 9:1 to 7: 3.

Optionally, the positions of the light emitting areas are not specifically limited in the present application, please refer to fig. 5, 8 to 11, and the light emitting areas may be uniformly distributed or non-uniformly distributed. Optionally, a plurality of light emitting areas are uniformly distributed along the annular lampshade 20 to form a uniform light supplement effect. Furthermore, at least one group of light-emitting areas are symmetrically distributed to realize symmetrical intersection of light beams and form light spots with relatively uniform brightness. Further, referring to fig. 10, the light-emitting areas are symmetrically distributed two by two to form a plurality of groups of symmetrically converging light beams, so as to form light spots with strong and uniform illumination and improve the brightness and uniformity of light supplement.

The macro range H1 is a range in which the object side is 1mm to 10mm away from the object side of the lens 10 along the optical axis direction, and optionally, the macro range H1 is 3mm to 10mm, for example, the macro range may be 3mm, 3.1mm, 4mm, 5mm, 8mm, 9.9mm, 10mm, and the like. It will be appreciated that the distance between the point of intersection of the converging light beams and the object side of the lens 10 is less than the minimum of the macro range H1.

The viewing area of the macro range H1 is the area of the camera module 100 corresponding to the object image at a certain distance. The present application does not limit the specific numerical value of the viewing area of the macro range H1. The spot area of the converged light beam when the microspur is 5mm is larger than the viewing area, or the spot area of the converged light beam when the microspur is 5mm completely covers the viewing area. Further, the spot area of the converged light beam at a micro distance of 3mm completely covers the viewing area.

Referring to fig. 5 and 8 to 11, the light emitting regions include at least one first light emitting region 22a and at least one second light emitting region 22 b. Taking a light source 40 as an example to illustrate the difference between the first light-emitting area 22a and the second light-emitting area 22b, the first light-emitting area 22a and the second light-emitting area 22b are light-emitting areas of light emitted by the light source 40, wherein an orthographic projection of the light source 40 on the second surface 22 is located inside the first light-emitting area 22a and outside the second light-emitting area 22 b.

Referring to fig. 12, the first light ray a1 emitted by the light source 40 directly exits along the first light-emitting area 22a to form a first light beam S1. The second light ray a2 is guided in the ring-shaped globe 20 and then emitted from the second light emission region 22b to form a second light flux S2.

For convenience of illustration, referring to fig. 7, a geometric center of the first light exiting region 22a and a reference line along the Z-axis direction are taken as a first light exiting axis L1, and a geometric center of the first light exiting sub-region 22b and a reference line along the Z-axis direction are taken as a second light exiting axis L2. The emitting range of the first light beam S1 may be an α range spatially centered on the first light exit axis L1, and the emitting range of the first light beam S1 is ± α range centered on the first light exit axis L1 when viewed on the Z-Y plane. The value of α is not specifically limited in the present application, and alternatively, the value of α may be 30 ° to 60 °, and further, the value of α may be 45 ° to 60 °. Alternatively, the value of α may take 30 °, 40 °, 45 °, 50 °, 60 °, etc. The above angles are merely examples in the present application, and other angles are also possible. The emitting range of the second light beam S2 may be a range β spatially centered on the second light exit axis L2, and the emitting range of the second light beam S2 is ± β spatially centered on the second light exit axis L2 in a Z-Y plane. The value of β is not specifically limited in the present application, and alternatively, the value of β may be 30 ° to 60 °, and further, the value of β may be 45 ° to 60 °. Alternatively, the value of β may take 30 °, 40 °, 45 °, 50 °, 60 °, etc. The above angles are merely examples in the present application, and other angles are also possible. The first light beam S1 and the second light beam S2 meet at the object side, where the meeting covers the macro range H1 (see fig. 7).

It can be understood that, referring to fig. 7, the camera module 100 includes, but is not limited to, a camera with macro shooting function, and the macro range H1 is a distance between the surface of the object and the lens 10, and is 3mm to 10 mm. The first light flux S1 emitted from the first light emission region 22a and the second light flux S2 emitted from the second light emission region 22b intersect within the macro range H1. The area of the converged light (the area of the formed light spot) is larger than the area of the object plane for macro-shooting, so that uniform light supplement in the range of the object plane for macro-shooting or ultra-macro-shooting is realized, the light supplement brightness is improved, and the imaging quality of the macro-shooting or ultra-macro-shooting is further improved.

Of course, in other embodiments, the orthographic projection of the light source 40 on the second face 22 is located between two adjacent light exit areas. The first light ray a1 emitted by the light source 40 is guided in the ring-shaped light shade 20 and then emitted through one light-emitting area, and the second light ray a2 emitted by the light source 40 is guided in the ring-shaped light shade 20 and then emitted through the other light-emitting area.

Optionally, the range of the light source 40 is greater than 10 cm. Further, the range of the intersection light beam is greater than 10cm, and the light can also shine flash scope and flashlight irradiation range to the flash lamp, so light source 40 that this application embodiment provided can also be as flash lamp flash light fill light and flashlight fill light.

Referring to fig. 7, the light source 40 provided by the present application emits two light beams from the annular lampshade 20, which not only can meet and form a bright light spot in the macro range H1 to supplement light for macro photography, but also can illuminate a flash range (see the range H2 in fig. 7, where the range H2 is greater than 10cm away from the optical axis of the lens 10) to meet and form a bright light spot to supplement light for photography. Further, when the camera module 100 is disposed in the electronic device 1000, since the intersection light beam emitted from the light source 40 through the annular lampshade 20 can intersect within the range of H2, the intersection light beam emitted from the light source 40 through the annular lampshade 20 can also be applied to the flashlight function, so that the macro-shooting light supplement, the flash lighting light supplement and the flashlight light supplement can be integrated in the light source 40 and the annular lampshade 20, and the compactness of the device layout is further improved by integrating multiple functions in a limited space. Of course, the light beam emitted by the camera module 100 can illuminate an area between 10mm and 10cm, so as to implement the light supplementing and illuminating functions in the area.

In this application, when the camera module 100 is applied to the electronic device 1000, the electronic device 1000 further includes a controller (not shown), and the controller electrically connects the camera module 100 and the light source 40. The controller is configured to control the light source 40 to be turned on when the camera module 100 is in a flash lighting mode (i.e., flash light supplement is turned on), a flashlight mode (i.e., flashlight illumination is turned on), or a macro photography mode, so as to respond to the electronic device 1000 that the light source 40 is turned on in the flash lighting mode to implement a flash lighting function, the light source 40 is turned on in the flashlight mode to implement a flashlight function, or the light source 40 is turned on in the macro photography mode to implement a macro photography mode.

The specific type of the Light source 40 is not specifically limited in the present application, and optionally, the Light source 40 includes, but is not limited to, any one or more of a Light Emitting Diode (LED) lamp, a metal halide lamp, a fluorescent lamp, a high-pressure sodium, an incandescent lamp, a tungsten-iodine lamp, a xenon lamp, and the like. In one embodiment, the light source 40 is a flash lamp, also referred to as an electronic flash lamp, a high speed flash lamp, for example, a xenon lamp. The flash light passes through the condenser storage high voltage electricity, and pulse trigger makes the flash tube discharge, accomplishes and flash of light in twinkling of an eye to send very strong light in very short time, can be used to the occasion that the light is darker illumination in twinkling of an eye, also be used for the occasion that the light is brighter to give the local light filling of object by shooting, luminous efficacy is high.

Further, the controller is electrically connected to the image sensor 13 of the camera module 100 (see fig. 6). The controller is also used to adjust the brightness of the light source 40 according to the intensity of the light collected by the image sensor 13. Specifically, when shooting the mode at the microspur, image sensor 13 feeds back the light intensity who gathers to the controller, the controller judges whether the light intensity that current image sensor 13 adopted was crossed low or too high, whether the light intensity that image sensor 13 adopted was crossed low or too high, the power of controller adjustment light source 40, and then adjust the light filling effect of light source 40 to the microspur shooting region, and then the light intensity that realizes image sensor 13 and gather is fit for, improve the imaging quality of camera module 100 at the microspur shooting.

Referring to fig. 7, in the camera module 100 provided by the present application, the annular light cover 20 is disposed on the periphery of the lens 10, and the light source 40 is disposed between the annular light cover 20 and the flexible circuit board, light emitted by the light source 40 is emitted through the annular light cover 20, and in the process of emitting the light out of the annular light cover 20, the annular light cover 20 directly emits a part of the light through the first light emitting area 22a, and emits the other part of the light through the second light emitting area 22b after being reflected multiple times in the annular light cover 20, wherein a light beam emitted from the first light emitting area 22a intersects a light beam emitted from the second light emitting area 22b, and the intersection area covers the microspur range H1, so as to increase uniform and high-brightness light supplement of the camera module 100 during microspur shooting; in addition, the light beam emitted from the first light emitting region 22a also covers the flash area and the flashlight irradiation area, so the light source 40 and the annular lampshade 20 can also be used for flash and flashlight illumination, thereby achieving multiple purposes, integrating multiple functions of macro photography light supplement, flash lighting light supplement, flashlight illumination and the like in a limited space, improving the compactness of the device layout of the camera module 100, reducing the number of devices in the electronic device 1000 to which the camera module 100 is applied, and promoting the miniaturization of the electronic device 1000.

Referring to fig. 12, the annular lampshade 20 includes at least one emitting portion 211 and at least one light transmitting portion 212 integrally connected to each other. One light source 40 corresponds to one emitting portion 211 and one light transmitting portion 212. The light emitted by the light source 40 is a light beam, and the first light ray a1 refers to a part of the light beam emitted by the light source 40. For example, the light source 40 emits light rays with an angle of ± 60 °, that is, the emission point of the light source 40 has an emission angle range of 120 °, the first light ray a1 is the light ray portion with an emission angle of ± 45 ° in the light beam emitted by the light source 40, and the second light ray a2 is the light ray portion with an emission angle of +/-45 ° to +/-60 ° and the light ray portion with an emission angle of-45 ° to-60 ° in the light beam emitted by the light source 40.

The surface of the exit 211 facing the image side is a portion of the first surface 21 of the annular lampshade 20, the portion of the first surface 21 is used for receiving the first light ray a1 emitted by the light source 40, the surface of the exit 211 facing the object side is a portion of the second surface 22 of the annular lampshade 20, and the portion of the second surface 22 is a first light-emitting area 22 a. The first light ray a1 emitted from the light source 40 enters through the first surface 21 of the emitting portion 211 and is emitted from the first light emitting region 22 a. An orthogonal projection of the light source 40 on the second surface 22 is located within the first light exit area 22 a. Further, the orthographic projection of the light source 40 on the second surface 22 is located at the center position of the first light exit area 22 a. The center position of the light source 40 and the center position of the first light exit region 22a are aligned in the direction of the optical axis. That is, the emitting portion 211 functions to directly emit the first light ray a1 emitted from the light source 40 in the optical axis direction. Note that, not all the light beams in the optical axis direction are emitted in the optical axis direction, but the direction of the light beam is the direction along the optical axis for the entire light beam of the first light beam a 1.

The light conducting part 212 is used for conducting a section of the second light source 40 emitted by the light source 40 in the plane of the annular lampshade 20 and then emitting the second light source. The plane of the annular lampshade 20 is a plane perpendicular to the optical axis.

Referring to fig. 12, the light transmitting portion 212 includes a first conductive body 213 and a second conductive body 214 integrally formed. Specifically, the first conductor 213 and the second conductor 214 are arranged along the plane of the annular lampshade 20. In other words, the surface of the first conductor 213 facing the image side is a part of the first surface 21, and the surface of the first conductor 213 facing the object side is a part of the second surface 22. The surface of the second conductor 214 facing the image side is another part of the first surface 21, and the surface of the second conductor 214 facing the object side is another part of the second surface 22. The second light ray a2 emitted from the light source 40 enters the first surface 21 of the first conductor 213, is transmitted by the second conductor 214, and is emitted from the second light emission region 22 b.

The first conductor 213 is located between the emission portion 211 and the second conductor 214. Optionally, the diameter of the emitting portion 211 is smaller than the size between the inner annular surface 25 and the outer annular surface 24 of the annular lampshade 20, and the first conductive body 213 is completely surrounded on the circumference of the emitting portion 211, that is, the first conductive body 213 is annular, so as to receive the annular second light ray a2 in all directions and sufficiently transmit the second light ray a2 along the radial direction of the annular lampshade 20, so as to achieve the brightness uniformity of the annular lampshade 20 in the radial direction. Of course, in other embodiments, the diameter of the emitting portion 211 is smaller than the size between the inner ring surface 25 and the outer ring surface 24 of the annular lampshade 20, the first conductive body 213 is in a half-ring shape, and is half-surrounded on the circumferential side of the emitting portion 211 to receive the second light ray a2 on the circumferential side of the first light ray a1 and uniformly transmit the second light ray a2 in the radial direction of the annular lampshade 20, and the half-ring shape of the first conductive body 213 is not limited to a half-ring shape of 180 °, a small half-ring shape of less than 180 °, a large half-ring shape of more than 180 °, or the like.

A part of the second surface 22 of the second conductor 214 is a second light emitting region 22 b. Specifically, a portion of the second surface 22 of the second conductor 214 facing the object side is the second light emitting region 22 b. The second surface 22 corresponding to the end of the second conductor 214 away from the first conductor 213 is a second light emitting area 22 b.

Referring to fig. 9, for convenience of description, a region between the first light emitting region 22a and the second light emitting region 22b is defined as a first transition region 26 a. In the present embodiment, one or more second light emission regions 22b corresponding to one light transmitting portion 212 are provided. When the number of the second light emitting areas 22b corresponding to one light transmitting portion 212 is plural, at least the following cases are included, and in one case, please refer to fig. 9, the second light emitting areas 22b, the first transition area 26a, the first transition area 22a, the first transition area 26a, and the second light emitting area 22b are sequentially arranged on the second surface 22 along the circumferential direction of the annular lampshade 20, and of course, the number of the second light emitting areas 22b may also be 3 or more; in another case, referring to fig. 10, the second light emitting area 22b, the second transition area 26b, the second light emitting area 22b, the first transition area 26a and the first light emitting area 22a are sequentially arranged on the second surface 22 along the circumferential direction of the annular lampshade 20, but referring to fig. 4, the number of the second light emitting areas 22b may also be 3 or more, where the second transition area 26b is a portion between two adjacent second light emitting areas 22b on the second surface 22.

In this embodiment, referring to fig. 13, the first conductor 213 surrounds the emitting portion 211. The first end 212a of the second conductor 214 (see the

portions

214a and 214b in fig. 13) corresponds to one second light emitting region 22b (see 22c in fig. 13), and the second end 212b of the second conductor 214 (see the

portions

214a and 214b in fig. 13) corresponds to the other second light emitting region 22b (see 22d in fig. 13). The first end 212a of the second conductor 214 and the second end 212b of the second conductor 214 are respectively located at two sides of the first conductor 213 and are arranged along the circumferential direction of the annular lampshade 20.

It should be noted that, referring to fig. 13, when the number of the light sources 40 is one, the first end 212a of the second conductive body 214 corresponds to one complete second light emitting region 22b (see 22c in fig. 13), and the second end 212b of the second conductive body 214 corresponds to another complete second light emitting region 22b (see 22d in fig. 13). When the number of the light sources 40 is two, the first end 212a of the second conductor 214 of one light source 40 corresponds to a portion of one second light emitting area 22b (see 22c in fig. 13), and the second end 212b of the second conductor 214 of one light source 40 corresponds to a portion of the other second light emitting area 22b (see 22d in fig. 13). Two light sources 40 cooperate to achieve correspondence of two complete second light-emitting areas 22b, as described in detail with reference to the embodiment of fig. 24. The number of the second conductors 214 in the light transmitting portion 212 is not particularly limited.

In one embodiment, referring to fig. 13, the number of the first conductors 213 in the light conducting portion 212 is one, and the number of the second conductors 214 is two, which are respectively referred to as a first sub-conductor 214a and a second sub-conductor 214 b. The first and second sub-conductors 214a and 214b are located on opposite sides of the first conductor 213 in the circumferential direction, respectively.

Referring to fig. 13, the first conductive body 213 is annularly surrounded on the periphery of the emitting portion 211, so that the first light ray a1 emitted from the light source 40 is emitted from the first light emitting region 22a through the emitting portion 211 along the optical axis direction, and the second light ray a2 emitted from the light source 40 is sufficiently transmitted on the periphery of the emitting portion 211 through the first conductive body 213, so as to make the light rays in the radial direction near the emitting portion 211 uniform. An end portion of the first sub-conductor 214a away from the first conductor 213 and an end portion of the second sub-conductor 214b away from the first conductor 213 correspond to the two second light exit regions 22b, respectively. The two second light exit regions 22b are respectively referred to as a first sub light exit region 22c and a second sub light exit region 22 d. An end 212a of the first sub-conductor 214a remote from the first conductor 213 corresponds to the first light exit sub-region 22 c. An end 212b of the second sub-conductor 214b remote from the first conductor 213 corresponds to the second light exiting region 22 d.

A part of the light incident on the second conductor 214 is transmitted toward the first sub-conductor 214a counterclockwise in the circumferential direction, and is emitted in the first sub light emitting region 22 c. Another part of the light incident on the second conductor 214 is transmitted toward the second sub-conductor 214b clockwise in the circumferential direction, and is emitted in the second sub light emitting region 22 d.

Through the design, the light emitted by the light source 40 can be emitted in the light emitting areas at three different positions to form three light beams, and the three light beams can be converged in the macro range H1 to supplement light for macro shooting.

In another embodiment, referring to fig. 14, the number of the first conductors 213 and the second conductors 214 in the light-transmitting portion 212 is one. Specifically, the first conductor 213 surrounds at least a portion of the periphery of the emitting portion 211, and one end (see 212a in fig. 14) of the second conductor 214 away from the first conductor 213 corresponds to one second light emitting region 22 b.

Through the design, the light emitted by the light source 40 can be emitted in the light emitting areas at two different positions to form two light beams, and the two light beams can be converged in the macro range H1 to supplement light for macro shooting.

It is understood that the above embodiments are examples of the light of one light source 40 being emitted from two or three positions, and of course, those skilled in the art may design other embodiments in which the light of one light source 40 is emitted from four positions, five positions, and so on, with reference to the above embodiments.

Compared with a scene in which the light source 40 emits a single light beam, since the single light beam is irradiated into the macro range H1 from a single direction, the luminance of a region close to the irradiation direction may be high, and the luminance of a region far from the irradiation direction may be low, resulting in a problem that the luminance distribution of macro photography is not uniform; the view area of macro photography is very small, and only a few millimeters is multiplied by a few millimeters, so that the uneven light distribution in a very small local area may cause relatively large brightness difference in the macro view range, thereby affecting the macro photography imaging.

In the present application, by providing the annular lampshade 20 to divide the light emitted from the light source 40 into a plurality of different positions and emit the light, and the light beams emitted from the different positions can all converge in the microspur range H1, it is realized that one light source 40 can emit a plurality of light beams which are irradiated from a plurality of directions into the microspur range H1, so as to improve the brightness uniformity in the microspur range H1. Further, a plurality of light beams emitted from one light source 40 may be uniformly arranged around the circumference to irradiate the macro range H1. For example, referring to fig. 8, one light source 40 can emit two light beams, and light emitting areas of the two light beams are symmetrically arranged on the second surface 22 with respect to the geometric center of the second surface 22. One light source 40 may emit three light beams, the light exit areas 2 of the three light beams being evenly distributed on the second face 22, and so on. Referring to fig. 11, one light source 40 can emit four light beams, and the four light beams are symmetrically arranged on the second surface 22 with respect to the geometric center of the second surface 22.

Optionally, the light intensity of the first light ray a1 is greater than the light intensity of the second light ray a 2. That is, the intensity of the light beam emitted from the first light emission region 22a is greater than the intensity of the light beam emitted from the second light emission region 22 b. The intensity of the first light ray a1 and the second light ray a2 is designed to be different, so that the light source can be applied to different use scenes.

In one embodiment, the combined beam of light from the first light ray a1 and the second light ray a2 is used for both macro photography and as a flashlight and flashlight, the first light ray a1 can ensure higher brightness in the flash lamp irradiation range and the flashlight irradiation range by setting the intensity of the first light ray a1 to be greater than that of the second light ray a2, the light beam or light beams emitted by the second light ray a2 are further supplemented in the microspur range H1 similarly from different directions, the fill-in light intensity in the macro range H1 needs to be within a certain range, so by designing the intensity of the second light a2 to be less than the intensity of the first light a1, the light source can ensure the light supplement with proper brightness and multiple directions in the microspur range H1, and also ensure higher brightness in the flash lamp irradiation range and the flashlight irradiation range, thereby realizing the multiple purposes of the light source 40.

Optionally, the ratio of the intensity of the second light ray a2 to the intensity of the first light ray a1 is greater than or equal to 2: 8. For example, the ratio of the intensity of the second light ray a2 to the intensity of the first light ray a1 is 2:8 or 3: 7, and the like. It is understood that the ratio of the intensity of the second light beam S2 to the intensity of the first light beam S1 is greater than or equal to 2: 8.

Alternatively, the intensity of the second light ray a2 and the intensity of the first light ray a1 can be controlled by controlling the size of the first surface 21 of the light emitting portion 211, the emitting angle of the light source 40, and the like. For example, the light source 40 is designed to emit light at an angle of ± 60 °, the first surface 21 of the emitting portion 211 is designed to receive light within a range of ± 45 °, and the first surface 21 of the light conducting portion 212 is designed to receive portions of ± 45 ° to ± 60 ° and portions of-45 ° to-60 °. The above description is made with reference to a planar view. Through the above design, the intensity of the first light ray a1 and the intensity of the second light ray a2 are about 7: 3.

Of course, in other embodiments, the light intensity of the first light ray a1 is equal to or less than the light intensity of the second light ray a 2. The intensity of the first light ray a1 is equal to the intensity of the second light ray a2, and can be used for uniformly supplementing light in the microspur range H1 and for supplementing light for a flash lamp and illuminating a flashlight in a relatively close range.

The number of the light sources 40 is one or more for the annular lamp cover 20. When the quantity of light source 40 is a plurality of, light source 40 can be evenly arranged or unevenly arranged along circumference to improve the light beam quantity and the light beam luminance of following annular lamp shade 20 and emitting, and then improve light filling luminance and light filling homogeneity.

The structure, material, and the like of the light transmitting portion 212 will be specifically exemplified below with reference to specific embodiments.

Optionally, referring to fig. 15, 16 and 17, the injection portion 211 includes a first boss 215 protruding from the first surface 21. The first boss 215 has a first land 215a and a first peripheral surface 215b which is attached around the first land 215 a. The first mesa 215a faces the light source 40. In a longitudinal section of the first boss 215, an angle between a section line corresponding to the first peripheral surface 215b and a section line corresponding to the first land surface 215a is greater than 90 °. The longitudinal section is a section formed by cutting the first boss 215 in a direction parallel to the optical axis.

The specific shape of the first boss 215 is not specifically limited in the present application, and optionally, the first mesa 215a faces the light exit surface of the light source 40. The convex surface of the first boss 215 includes, but is not limited to, being a flat surface, an arc-shaped convex surface, or an arc-shaped concave surface. In the present embodiment, the first boss 215 is a flat surface. Further, the first mesa 215a is a direction perpendicular to the optical axis.

The shape of the first mesa 215a includes, but is not limited to, circular, oval, square, diamond, hexagonal, rectangular, etc. Optionally, the first mesa 215a is circular to form a circular uniform light beam at the first light exit area 22a (see fig. 7). The first land 215a is disposed opposite to the light emitting surface of the light source 40 to receive more light emitted from the light source 40. Optionally, the distance between the first mesa 215a and the light emitting surface of the light source 40 is less than 1 mm.

The angle between the first peripheral side surface 215b and the first mesa 215a is not particularly limited, and the angle at which the first peripheral side surface 215b guides the light to exit at the second surface 22 is ± 45 ° (not limited to this angle) of the reference line with the first light exit axis L1 being 0 °.

The area of the first boss 215 is not particularly limited in the present application. Optionally, the light source 40 is a point light source. The area of the first boss 215 corresponds to the area of the emission point of the light source 40. Alternatively, the area of the first boss 215 is the same as the area of the emission point of the light source 40. Further, the geometric center of the first boss 215 is directly opposite to the geometric center of the emission point of the light source 40 in the Z-axis direction.

The position of the first boss 215 is not particularly limited in the present application. Referring to fig. 15 and 16, an orthogonal projection of the first projection 215 on the second surface 22 is located in the first light exiting area 22 a. The first light ray a1 enters through the first mesa 215a and directly exits through the first light-exiting region 22a, increasing the brightness of the light ray exiting from the first light-exiting region 22 a.

Optionally, the first boss 215 is located at a middle position of the annular band of the annular lampshade 20. Specifically, the distance between the first projection 215 and the outer annular surface 24 is about 1.5mm, and the distance between the first projection 215 and the inner annular surface 25 is about 1.5 mm.

For convenience of description, a line defining the geometric center of the first mesa 215a and the geometric center of the through hole 20a in the second face 22 is a first axis Y1, and a line defining the geometric center of the through hole 20a in the second face 22 and perpendicular to the first axis Y1 is a second axis X1.

Alternatively, referring to fig. 16, the shape of the first mesa 215a is symmetrical about the first axis Y1 and also symmetrical about a line parallel to the second axis X1, so that the light spot formed when the light beam incident from the first mesa 215a is emitted is symmetrical about the first axis Y1 and symmetrical about the second axis X1, thereby improving the uniformity of the brightness of the light spot emitted from the emitting part 211.

Further, referring to fig. 18 and 19, the number of the light sources 40 is two, and the two light sources 40 are disposed along the first axis Y1. The number of the first light-emitting regions 22a is two, and the two first light-emitting regions 22a are arranged along the first axis Y1. One light source 40 corresponds to two second light-emitting regions 22b, wherein one second light-emitting region 22b of one light source 40 and one second light-emitting region 22b of another light source 40 are combined into one second light-emitting region 22b (e.g., 22b on the left side of Y1 in fig. 19), and the other second light-emitting region 22b of one light source 40 and the other second light-emitting region 22b of another light source 40 are combined into another second light-emitting region 22b (e.g., 22b on the right side of Y1 in fig. 19). Then, there are two second light-emitting areas 22b, and the two second light-emitting areas 22b are disposed along the second axis X1. Furthermore, the annular lampshade 20 forms four light beams, the four light beams are respectively emitted and converged at the positions of 0 °, 90 °, 180 ° and 270 ° of the annular lampshade 20, and the light beams are uniformly converged from four directions, so that the brightness uniformity of light spots of the converged light is further improved.

Alternatively, the injection portion 211 is made of a uniform material.

The present application will now be described with reference to the accompanying drawings.

Optionally, a material of at least a portion of the light transmitting portion 212 is different from a material of the emitting portion 211.

Referring to fig. 20, fig. 20 is a schematic diagram of a light path of an annular lampshade 20 expanded into two dimensions, and it should be noted that fig. 20 is a schematic diagram of a light path formed by expanding an annular light path into a strip-shaped light path. The light transmitting portion 212 includes a first dielectric layer 231 and a second dielectric layer 232 stacked along the optical axis direction of the lens 10. The first conductive body 213 and the second conductive body 214 both include the first dielectric layer 231 and the second dielectric layer 232, and the light transmitting portion 212 refers to the first conductive body 213 and the second conductive body 214.

The second dielectric layer 232 is adjacent to the light source 40 relative to the first dielectric layer 231. The refractive index of the second dielectric layer 232 is greater than that of the first dielectric layer 231. At least a portion of second light ray a2 is totally reflected within second dielectric layer 232. In the process of emitting light from the light source 40, the light emitted from the air into the second dielectric layer 232 and then from the first dielectric layer 231 is emitted from the optically thinner layer to the optically denser layer and then emitted from the optically denser layer to the optically thinner layer. At the interface between the second dielectric layer 232 and the first dielectric layer 231 (referred to as the first interface 233 in this application), when at least a portion of the incident angle of the second light ray a2 is greater than the critical angle of total reflection of the second dielectric layer 232 and the first dielectric layer 231, at least a portion of the second light ray a2 is totally reflected at the first interface 233.

Optionally, the critical angle of total reflection of the light emitted by the light source 40 in the second dielectric layer 232 is 45 ° to 60 °.

The material of the first dielectric layer 231 is different from that of the second dielectric layer 232. Optionally, the material of the second dielectric layer 232 is different from the material of the injection portion 211. The first dielectric layer 231 and the injection part 211 may be made of the same material or different materials. Optionally, the refractive index of the second dielectric layer 232 is greater than the refractive index of the emitting portion 211.

Optionally, referring to fig. 20, an interface (first interface 233) between the first dielectric layer 231 and the second dielectric layer 232 includes a first plane 234 and a set of inclined planes 235 connected to each other. The first plane 234 corresponds to a region between two adjacent light exit regions. When the first light ray a1 of one light source 40 is emitted from one first light-emitting area 22a and the second light ray a2 is emitted from two second light-emitting areas 22b on both sides of the first light-emitting area 22a, respectively, the first plane 234 corresponds to an area between the first light-emitting area 22a and one second light-emitting area 22b and an area between the first light-emitting area 22a and the other second light-emitting area 22 b.

Optionally, the second surface 22 is a surface of the first dielectric layer 231 facing away from the second dielectric layer 232. The second surface 22 is a plane perpendicular to the optical axis, and the first plane 234 may be parallel to the second surface 22.

Optionally, a surface of the second dielectric layer 232 facing away from the first dielectric layer 231 is a plane, which is referred to as a second plane 236. The first plane 234 may be parallel to the second plane 236, and thus the incident angle of the second light ray a2 totally reflected from the first plane 234 to the second plane 236 is also larger than the critical angle of total reflection of the second medium layer 232 to the air medium layer, so that the second light ray a2 may be totally reflected between the first plane 234 and the second plane 236 multiple times.

It should be noted that, when the light conducting portion 212 only includes the first dielectric layer 231 and the second dielectric layer 232, a surface of the first dielectric layer 231 facing away from the second dielectric layer 232 is a second surface 22 of the light conducting portion 212, and a surface of the second dielectric layer 232 facing away from the first dielectric layer 231 is a first surface 21 of the light conducting portion 212. Of course, the present application is not limited to the light conducting portion 212 only including the first dielectric layer 231 and the second dielectric layer 232, wherein the light conducting portion 212 may further include a dielectric layer with a smaller refractive index disposed on a side of the first dielectric layer 231 away from the second dielectric layer 232, or a dielectric layer with a smaller refractive index disposed on a side of the second dielectric layer 232 away from the first dielectric layer 231.

The inclined surface set 235 is connected to an end of the first plane 234 away from the emitting portion 211. The orthographic projection of the inclined plane group 235 on the second face 22 is located within the second light exiting region 22 b.

Referring to fig. 20, the inclined surface set 235 includes at least one first inclined surface 235 a. The first inclined surface 235a extends from the first plane 234 in a direction from the first dielectric layer 231 to the second dielectric layer 232 and away from the first plane 234. An incident angle of at least some of the light totally reflected within the second dielectric layer 232 at the first inclined surface 235a is smaller than a total reflection critical angle of the light emitted from the light source 40 within the second dielectric layer 232. In this way, at least a part of the light totally reflected in the second dielectric layer 232 is emitted from the second light-emitting region 22b through the inclined surface group 235 and the first dielectric layer 231.

Optionally, the number of the first inclined surfaces 235a is multiple, and the multiple first inclined surfaces 235a are arranged along the circumferential direction and are parallel to each other, so that the second light ray a2 in a larger range is emitted to form a relatively bright light beam.

Referring to fig. 20, the inclined surface set 235 further includes at least one second inclined surface 235 b. The second inclined surface 235b is connected between two adjacent first inclined surfaces 235 a. The second inclined surface 235b extends from the first inclined surface 235a in a direction from the second dielectric layer 232 to the second dielectric layer 232 and away from the first plane 234. In other words, the longitudinal section of the inclined surface group 235 is a serrated surface. The second inclined surface 235b serves to connect two adjacent first inclined surfaces 235a, and when one ring-shaped lamp housing 20 corresponds to a plurality of light sources 40, the second light rays a2 of two adjacent light sources 40 converge from two sides of the second light emitting region 22b along the circumferential direction, and at this time, the second inclined surface 235b may serve as a "first inclined surface 235 a" of another light source 40 for destroying the total reflection of the second light rays a2 of another light source 40 inside the second medium layer 232 and emitting the second light emitting region 22 b. The first inclined surface 235a may extend in a radial direction or form an angle with the radial direction in a radial direction of the ring-shaped lamp housing 20.

For example, the critical angle of total reflection of the second dielectric layer 232 is 45 °. The second light ray a2 enters the second medium layer 232, wherein the first sub light ray a21 of the second light ray a2 with the incident angle greater than or equal to 45 ° when the second light ray a2 hits the first plane 234 or the second plane 236 is totally reflected between the first plane 234 and the second plane 236 until the first sub light ray a 235a is totally reflected, at this time, the total reflection in the second medium layer 232 is destroyed, and the first sub light ray a21 hits the first medium layer 231 and exits the second light-exiting region 22 b. A second sub-light ray a22 of the second light ray a2 having an incident angle of less than 45 ° to the first plane 234 or the second plane 236 is directed to the image side from the second medium layer 232. The third sub-light ray a23 of the second light ray a2, which has an incident angle smaller than 45 ° when it is incident on the first plane 234 or the second plane 236, is emitted from the second medium layer 232 to the first medium layer 231 and passes through the first surface 21 of the first medium layer 231. The first surface 21 of the first dielectric layer 231 is also the first transition region 26a (and/or the second transition region 26 b). In other words, a small amount of light is emitted from the first transition region 26a (and/or the second transition region 26b), and the brightness of the light emitted from the first transition region 26a (and/or the second transition region 26b) is lower than that of the light emitted from the first light-emitting region 22a and the second light-emitting region 22 b.

In the present application, since the light emitted from the light source 40 enters the first surface 21 through the first mesa 215a of the first boss 215 of the emitting portion 211 at an incident angle of less than 45 °, and the light emitted from the light source 40 at an incident angle of greater than or equal to 45 ° enters the first surface 21 of the light conducting portion 212, the incident angle of the second light a2 entering the light conducting portion 212 can be controlled to be greater than or equal to 45 ° as much as possible, so that more light of the second light a2 is totally reflected in the second medium layer 232, and as little as possible light exits from the image side of the second medium layer 232 or exits from the first transition region 26 a/the second transition region 26b, thereby increasing the intensity of the emitted light beam in the second light emitting region 22 b.

Optionally, the second plane 236 is an area of the first face 21 of the light transmitting portion 212 that does not directly receive the second light ray a2 emitted by the light source 40. Further, at least one incident inclined surface inclined with respect to the second plane 236 (the incident inclined surface may refer to the reflection surface of the rear reflection ring) may be provided on the first face 21 of the light transmitting part 212 at a region directly receiving the second light a2 emitted from the light source 40 (specifically, the incident inclined plane extends in a direction gradually closer to the image side from a direction closer to the incident portion to a direction away from the incident portion, and thus, by providing the above-mentioned inclined incident slope such that the incident angle of the second light ray a2 on the incident slope is greater than or equal to (45+ θ) °, thereby ensuring that the incident angle of the second light ray a2 incident into the second dielectric layer 232 is greater than or equal to 45, further, the total reflection of as much or all of the second light ray a2 in the second medium layer 232 is achieved, so that the intensity of the light beam emitted from the second light-emitting region 22b is increased, and the light supplement effect for the macro range H1 is improved.

It is understood that the incident slant surface is an annular surface disposed around the emitting portion 211. Further, the number of the incident slopes is plural.

In one embodiment, referring to fig. 21, fig. 21 is a schematic view of another optical path of the annular lampshade 20 expanded to two dimensions, and it should be noted that fig. 21 is a schematic view for expanding an annular optical path to form a strip-shaped optical path. The light transmitting portion 212 further includes a third dielectric layer 237. The third dielectric layer 237, the second dielectric layer 232, and the first dielectric layer 231 are sequentially stacked. The refractive index of the third dielectric layer 237 is smaller than that of the second dielectric layer 232, so that the second light ray a2 emitted from the light source 40 can be incident into the second dielectric layer 232 through the third dielectric layer 237. The surface of the third dielectric layer 237 facing away from the second dielectric layer 232 is the first side 21. The interface between the third dielectric layer 237 and the second dielectric layer 232 is a second interface (i.e., the second plane 236). The refractive index of the third dielectric layer 237 is greater than that of air, and the second sub-ray a22 is totally reflected by the first surface 21 of the third dielectric layer 237 or emitted through the first surface 21 of the third dielectric layer 237 after being emitted from the second dielectric layer 232.

Referring to fig. 21, the third dielectric layer 237 has a reflective portion 238. The reflecting portion 238 is used for reflecting the light in the third dielectric layer 237 to the second dielectric layer 232, and an angle of at least a part of the reflected light incident on the second dielectric layer 232 is greater than a critical angle of total reflection in the second dielectric layer 232.

Further, the reflection unit 238 is disposed in a region of the third medium layer 237 that does not directly receive the second light ray a2 emitted from the light source 40, so that the reflection unit 238 is configured to reflect the light ray (i.e., the second sub-light ray a22) emitted from the third medium layer 237 toward the image side, and change the incident angle of the part of the light ray on the first interface 233, so that the incident angle of the part of the light ray on the first interface 233 is greater than or equal to the critical angle of total reflection in the second medium layer 232, thereby further increasing the intensity of the light ray totally reflected in the second medium layer 232, and further increasing the overall brightness of the light beam emitted from the second light-emitting region 22 b. In other words, the reflection portion 238 is used for converting the second sub-light ray a22 into the first sub-light ray a 21. Namely, the content of the first sub-light ray a21 in the second light ray a2 is increased and the content of the second sub-light ray a22 is decreased. Of course, in other embodiments, a reflective portion 238 similar to that in the third dielectric layer 237 may be disposed in the first dielectric layer 231 to reduce the content of the third sub-light ray a23 and further increase the content of the first sub-light ray a 21.

In the above embodiments of the light transmitting portion 212 according to the present application, the annular lampshade 20 may be provided with one light source 40 and the light transmitting portion 212 with 1/4 rings, one light source 40 and the light transmitting portion 212 with 1/2 rings, or two light sources 40 and the light transmitting portions 212 with 2 1/2 rings.

The reflective portion 238 may occupy an 1/4 ring area, a 1/2 ring area, a 3/4 area, or the entire ring area on the first face 21 of the annular bezel 20. The 1/4, 1/2, 3/4 are examples only, and other values, such as 1/5, 3/8, etc., are also possible.

The following description of the embodiments of the reflection unit 238 provided in the present application will be given with reference to the accompanying drawings. The following description will be made by taking an example in which the two light sources 40 are symmetrically disposed and the reflecting portion 238 can occupy the entire annular region of the first surface 21 of the annular lamp housing 20.

Referring to fig. 22, the reflective portion 238 includes a plurality of reflective strips 251 protruding from the first surface 21 of the second conductor 214. One end of the reflection bar 251 is connected to the outer annular surface 24 of the annular lamp housing 20, and the other end of the reflection bar 251 extends toward the inner annular surface 25 of the annular lamp housing 20, so that the reflection bar 251 can uniformly reflect the second light ray a2 in the radial direction. The reflective strips 251 extend linearly, curvedly, zigzag, S-shaped curvedly, etc. from one end to the other end thereof. In fig. 22, the curve is shown.

Referring to fig. 21 in combination, the plurality of reflective stripes 251 are arranged along the circumferential direction of the annular lamp housing 20 to uniformly reflect and transmit the second light ray a2 in the circumferential direction. The outer surface of the reflective bar 251 includes a first reflective surface 252 and a second reflective surface 253. The first reflecting surface 252 and the second reflecting surface 253 are both inclined with respect to an interface (a second interface (i.e., the second plane 236)) between the third dielectric layer 237 and the second dielectric layer 232, so that the first reflecting surface 252 and the second reflecting surface 253 reflect the second light ray a2 to change an incident angle of the second light ray a2 on the interface, and further the light ray in the third dielectric layer 237 is incident on the second dielectric layer 232 at a larger incident angle, so that more of the second light ray a2 is totally reflected in the second dielectric layer 232, a small amount of the second light ray a2 is transmitted inside the third dielectric layer 237, and further the loss of the second light ray a2 in the third dielectric layer 237 is reduced, and the efficiency of the second light ray a2 emitted through the light transmitting portion 212 is improved.

The shape of the reflective strips 251 is not particularly limited, and the longitudinal cross-sectional shape of the reflective strips 251 includes, but is not limited to, a triangle, a trapezoid, a semicircle, and the like. The longitudinal cross-sectional shapes of the first reflecting surface 252 and the second reflecting surface 253 may be two oblique sides of a triangle, two oblique sides of a trapezoid, or two arc sides of 1/4 in a semicircular shape, respectively. Fig. 21 and 22 illustrate the reflecting bar 251 in which the longitudinal cross-sectional shape is triangular.

Referring to fig. 22, the reflection portion 238 further includes a plurality of reflection rings 254 surrounding the emission portion 211 and disposed on the first surface 21 of the first conductive body 213. The plurality of reflection rings 254 are sequentially disposed in a radially outward direction of the reflection rings 254. The reflective rings 254 are all concentric rings with the center of the first boss 215.

The outer surface of the reflective ring 254 includes a third reflective surface 255 and a fourth reflective surface 256. The third reflective surface 255 and the fourth reflective surface 256 are both inclined with respect to an interface between the third dielectric layer 237 and the second dielectric layer 232 (the second interface (i.e., the second plane 236)).

Specifically, the size of the emitting portion 211 is smaller than the dimension of the annular band (i.e., the distance between the inner annular surface and the outer annular surface) of the annular lampshade 20. The reflective ring 254 surrounds the periphery of the emitting portion 211 and is located between the inner annular surface 25 and the outer annular surface 24 of the annular lamp housing 20. The reflective ring 254 is used for receiving the second light ray a2, and for transmitting the second light ray a2 uniformly along a ring shape, and the third reflective surface 255 and the fourth reflective surface 256 of the reflective ring 254 change the incident angle on the interface, so that the light ray in the third dielectric layer 237 passes through the second dielectric layer 232 at a larger incident angle, thereby improving the efficiency of the light ray exiting from the second light exit area 22 b.

The number and size of the reflective rings 254 are not particularly limited in this application. The spacing between adjacent reflective rings 254 is about 0.01 mm. Optionally, a plurality of reflective rings 254 form a water wave-like outward diffusion on the first face 21. The plurality of reflection rings 254 are outwardly diffused at intervals of 0.01mm centering on the first bosses 215.

Optionally, the center of the circle where the reflective strip 251 is located is the same as the center of the reflective ring 254. The saw-tooth structure of the reflective strips 251 is the same as that of the reflective ring 254, and the interval between two adjacent reflective strips 251 is the same as that between the reflective rings 254, so that the reflection process between the first and second faces 21 and 22 of the second light ray a2 (see fig. 12) is continuous and uniform.

In one embodiment, referring to fig. 22 to 24, the number of the light sources 40 is two, and the two light sources are respectively referred to as a first light source 41 and a second light source 42. The number of the emitting portions 211 is two, which are respectively referred to as a first emitting portion 211a and a second emitting portion 211b, and the two light sources 40 are uniformly distributed around the optical axis of the lens 10. The two light sources 40 are arranged in a first direction, which is the Y-axis direction in the figure and is also the first axis Y1 direction. When the camera module 100 is used in an electronic device 1000 such as a mobile phone, the first direction is also the length direction of the electronic device 1000. The optical axis direction of the camera module 100 is the thickness direction of the electronic apparatus 1000.

The number of the light transmitting portions 212 is two, and the two light transmitting portions 212 are respectively referred to as a first transmitting portion 212a and a second transmitting portion 212 b. Each light transmitting portion 212 has a semi-annular shape. Each of the emitting portions 211 is located at a symmetrical center of one of the light transmitting portions 212. The two ejection portions 211 are symmetrically arranged in the second direction.

Referring to fig. 23 and 24, each emission portion 211 corresponds to one first light-emitting region 22 a. The two first light-emitting regions 22a are symmetrically arranged in the first direction. Each of the injection portions 211 has an axisymmetric structure in both the first direction and the second direction. Wherein the second direction is a direction perpendicular to the first direction on the second surface 22. When the camera module 100 is used in an electronic device 1000 such as a mobile phone, the second direction is also the width direction of the electronic device 1000.

The light source 40 is provided at the position of the emission portion 211. In each light transmitting portion 212, taking the second transmitting portion 212b as an example, the first surface 21 of the first conductive body 213 (see fig. 12) is provided with a plurality of reflective rings 254, and the first surface 21 of the second conductive body 214 (see fig. 12) is provided with a plurality of reflective strips 251. The number of the second conductors 214 in one light conducting portion 212 is two, and the two second conductors are denoted as a first sub-conductor 214a and a second sub-conductor 214b, and the first sub-conductor 214a and the second sub-conductor 214b are respectively disposed on two opposite sides of the first conducting body 213, so as to respectively conduct the second light a2 emitted from the light source 40 clockwise and counterclockwise along the circumferential direction. The first sub-conductor 214a and the second sub-conductor 214b are arc-shaped reflective strips 251. The arc-shaped reflective strip 251 of the first sub conductor 214a and the arc-shaped reflective strip 251 of the second sub conductor 214b are symmetrical about the first axis Y1.

The orthographic projections of the first and second

conductive portions

212a and 212b on the second surface 22 are axisymmetrical. That is, the first and second

conductive portions

212a and 212b are symmetrically disposed about the second direction on the second face 22. One end of the first conductive portion 212a and one end of the second conductive portion 212b are connected to each other and correspond to one second light emission region 22 b. The other end of the first conductive portion 212a and the other end of the second conductive portion 212b are connected to each other and correspond to the other second light emission region 22 b. The two second light exit areas 22b are arranged in the second direction. The arc-shaped reflective strips 251 of the first conductive portion 212a and the arc-shaped reflective strips 251 of the second conductive portion 212b extend in opposite directions. The arc-shaped reflective strip 251 at one end of the first conductive portion 212a and the arc-shaped reflective strip 251 at one end of the second conductive portion 212b intersect at a first boundary line. The arc-shaped reflective strip 251 at the other end of the first conductive portion 212a and the arc-shaped reflective strip 251 at the other end of the second conductive portion 212b intersect at a second boundary line. Wherein the first and second dividing lines are collinear with the second axis X1.

Referring to fig. 24 to 26, the light emitted by the first light source 41 and the light emitted by the second light source 42 are mainly transmitted to the first light-emitting region 22a, the first sub light-emitting region 22c and the second sub light-emitting region 22d through three paths. The first light beam S1 emitted from the first light-emitting region 22a corresponding to the first light source 41, the first light beam S1 emitted from the first light-emitting region 22a corresponding to the second light source 42, the second light beam S2 emitted from the first light-emitting sub-region 22c by the part of the light beams of the first light source 41 and the part of the light beams of the second light source 42, and the third light beam S3 emitted from the second light-emitting sub-region 22d by the part of the light beams of the first light source 41 and the part of the light beams of the second light source 42. The two first light beams S1, the second light beam S2 and the third light beam S3 are converged to form a converged light beam, the area of a light spot of the converged light beam in a microspur range H1 is larger than the viewing area in the microspur range H1, and the light spots of the converged light beam are formed by converging a plurality of groups of light beams in symmetrical directions, so that the light spots with uniform brightness can be formed, high-brightness and uniform light supplement in the microspur range H1 can be realized, further, the converged light beam can be used for flash lamp flashing and flashlight illumination, the light is reasonably distributed through the structural design of the annular lampshade 20, the light supplement brightness for microspur shooting of the camera module 100 is improved, the camera module can be applied to various light supplement scenes, multiple purposes of one object are realized, multiple functions of microspur shooting light supplement, flash lamp flashing light supplement, flashlight illumination and the like are integrated in a limited space, and the compactness of the device layout of the camera module 100 is also improved, the number of components in the electronic apparatus 1000 to which the camera module 100 is applied is reduced, and miniaturization of the electronic apparatus 1000 is promoted.

The application provides two light sources 40 combine annular lamp shade 20 to carry out the light filling to the macro shooting, and annular lamp shade 20 is two point light emitting optimization for 4 point is luminous, and the degree of consistency is higher, and the macro shooting light filling is effectual, and in addition, two light sources 40 can not lead to the center luminance overexposure that the macro was shot, can also save the cost, through setting up two light sources 40 symmetries, can also improve the light filling homogeneity.

Optionally, the emission angle when two light sources 40 all is 120, distance between two light sources 40 is 12 ~ 20mm, value 12mm, object distance that the microspur was shot is 10mm, can calculate the radial dimension of spot area that intersects and be about 34mm, and the radial dimension of the effective imaging size (the area of finding a view) of microspur is 5mm, the effective imaging size (the area of finding a view) that the spot area of intersection is greater than the microspur far away, the realization is to the even light filling of microspur within range.

The number of the light sources 40 and the emission portions 211 is not particularly limited in the present application. Of course, a person skilled in the art may extend to embodiments for 4 light sources 40 and 4 emitting portions 211, 6 light sources 40 and 6 emitting portions 211, 8 light sources 40 and 8 emitting portions 211, 5 light sources 40 and 5 emitting portions 211, etc., according to the following embodiments. Alternatively, the number of the light sources 40 may be even, and the plurality of light sources 40 are arranged two by two symmetrically. Accordingly, the plurality of light emitting portions 211 are symmetrically arranged two by two, and the first light emitting sub-region 22c (see fig. 24) and the second light emitting sub-region 22d are symmetrically arranged, so that the light rays emitted from the first light emitting sub-region 22c (see fig. 24) and the second light emitting sub-region 22d are symmetrically emitted and converged, and the uniformity of the object plane irradiated in the macro range H1 (see fig. 24) is improved.

The application provides a camera module 100, design through the structure to annular lamp shade 20, realize that two light sources 40 jet out the back through annular lamp shade 20, not only at two light sources 40 just right position light-emittings, still carry out the light-emittings in the middle of two light sources 40, increased the light-emitting position under the condition of not addding light source 40 quantity, improve annular lamp shade 20's light-emitting homogeneity under the condition of reduction cost and structural complexity, and then improve luminance and the degree of consistency of camera module 100 when the microspur is shot.

Further, referring to fig. 27, the first surface 21 is further provided with an annular boss 233 surrounding the through hole 20 a. The injection portion 211 is provided on the outer periphery of the annular boss 233. The height of the annular boss 233 in the Z-axis direction is greater than the height of the injection portion 211.

Referring to fig. 27, an end of the annular protrusion 233 away from the first surface 21 is connected to the supporting surface of the mirror base 11, and specifically, an end of the annular protrusion 233 away from the first surface 21 is bonded to the supporting surface of the mirror base 11 through the glue layer 56.

Referring to fig. 3 and 27, the camera module 100 further includes a flexible circuit board 51 and a supporting plate 52 supporting the flexible circuit board 51. The support plate 52 may also be referred to as a steel patch of the flexible circuit board 51. The flexible circuit board 51 and the support plate 52 are respectively provided with a first opening 51a and a second opening 52a which are in communication with the through hole 20 a. The lens holder 11 is disposed in the through hole 20 a. The first surface 21, the outer circumferential surface of the annular boss 233 and the flexible circuit board 51 surround to form an accommodating space 53a, and the light source 40 is disposed on the flexible circuit board 51 and located in the accommodating space 53 a. The material of the supporting plate 52 is a heat dissipation material, including but not limited to aluminum, etc., so as to prevent the performance of the light source 40 from being reduced due to too high local temperature near the light source 40.

Referring to fig. 2 and fig. 27, an electronic apparatus 1000 is provided in an embodiment of the present application, and includes a rear cover 54, a transparent cover plate 55, and a camera module 100 according to any one of the above embodiments. The rear cover 54 has a mounting hole 54 a. The light-transmissive cover 55 is disposed in the mounting hole 54 a. The lens 10 and the annular lamp housing 20 are both facing the light-transmissive cover 55. At least one positioning protrusion 241 is provided on the outer circumferential surface 24 of the annular lamp housing 20. The positioning protrusion 241 is used for foolproof and positioning the annular lampshade 20 during the installation process, which is beneficial to the accurate alignment and assembly of the light source 40 and the annular lampshade 20, and ensures that the emission point of the light source 40 is aligned with the first sub light incident part 212 (the first boss 215) of the annular lampshade 20. Optionally, the number of the positioning protrusions 241 is two, and the two positioning protrusions 241 correspond to the first sub light exit area 22c and the second sub light exit area 22d, respectively. The rear cover 54 is provided with at least one positioning groove 54b adapted to the positioning projection 241. The ring-shaped lamp housing 20 is mounted to the rear cover 54 by the positioning protrusions 241 and the positioning grooves 54 b. A positioning protrusion 241 is provided on the outer circumferential surface 24 of the ring-shaped lamp cover 20 to facilitate the ring-shaped lamp cover 20 to be mounted on the rear cover 54 in a correct posture so that the emitting portion 211 on the ring-shaped lamp cover 20 is aligned with the position of the light source 40.

In the installation process of the camera module 100, the camera module 100 and the light source 40 (including the light source 40, the flexible circuit board 51 and the support plate 52) are installed on the middle frame of the electronic device 1000; the transparent cover plate 55 is mounted in the mounting hole 54a of the rear cover 54, the positioning protrusion 241 of the annular lampshade 20 is correspondingly mounted with the positioning groove 54b of the rear cover 54, and the rear cover 54 is mounted on the middle frame of the electronic device 1000, in this process, the annular lampshade 20 is sleeved on the lens 10, and the end of the annular boss 233 of the annular lampshade 20 is bonded on the lens holder 11 of the camera module 100 through the glue layer 56.

Optionally, the intensity of the light beam irradiating the macro range H1 of the camera module 100 accounts for more than 20% of the total emitted light beam intensity. For example, the light beam intensity in the macro range H1 irradiated to the camera module 100 is 30%, and the light beam intensity in the flash area or the flashlight irradiation area is 70%. The compatible design of the light supplementing effect of the macro photography, the flashing of the flash lamp and the illuminating effect of the flashlight is realized, the utilization rate is greatly improved, and the cost is reduced.

Alternatively, the diameter of the light source 40 in the present application may be about 9.5mm, which is smaller than the diameters of the annular lamp housing 20 and the light source 40 that also achieve uniform light emission.

Referring to fig. 28, 29 and 30, fig. 28, 29 and 30 are simulated light spot diagrams of the two light sources 40 and the annular lampshade 20 at object plane distances of 1m, 5mm and 10mm, respectively. The object plane distance is 1m, and the device can be used for flashing a flashlight, illuminating a flashlight and the like. The object plane distance is 5mm and 10mm, and the device can be used for macro photography.

Taking the distance of flash of the flash lamp as 1m as an example, it can be seen from fig. 28 and table 1 that a brighter light spot is formed in the object plane range of 1007mm × 1343mm, wherein the central brightness of flash of the flash lamp is 95LUX, the uniformity is above 38%, and compared with the central brightness of 80LUX in the prior art, the uniformity is 25%, and both the central brightness and the uniformity are greatly improved.

Use the distance of microspur shooting light filling to be 5mm as an example, can see according to fig. 29 and table 1, have higher luminance in 5 mm's object plane within range, wherein, microspur shoots that light filling effect 1 mA's central luminance can reach 1425LUX, the central degree of consistency reaches more than 90%, it is high to explain the luminous efficacy of light source 40 and the annular lamp shade 20 that this application provided in the aspect of microspur shooting light filling application, and luminance is high, the degree of consistency is good, be superior to the light guide pole light filling scheme among the general technique.

By taking the distance of the macro-shooting light supplement as an example of 10mm, it can be seen from fig. 30 and table 1 that brighter light spots are formed in the object plane range of 5mm × 5mm, wherein the central brightness of the macro-shooting light supplement effect 1mA can reach 1070LUX, and the central uniformity reaches more than 90%.

Table 1

From the above, the annular lampshade 20 provided by the embodiment of the application has the advantages of small size, no influence on the layout of the mobile phone, simple process, high production yield, low cost, adjustable light supplement brightness, abundant picture brightness, 90% light supplement uniformity, easy debugging effect, reduction of software debugging difficulty and other technical effects. The light source 40 and the camera module 100 with the annular lampshade 20 realize compatible design of a macro shooting light supplement effect, flash of a flashlight and an illuminating effect of a flashlight, greatly improve the utilization rate and reduce the cost.

While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that various changes and modifications may be made without departing from the principles of the application, and it is intended that such changes and modifications be covered by the scope of the application.

Claims

1. The utility model provides a camera module which characterized in that includes:

a lens;

the annular lamp shade is provided with a first surface and a second surface which are arranged in an opposite way, the annular lamp shade is also provided with a through hole which penetrates through the first surface and the second surface, and at least part of the lens is arranged in the through hole; the second surface is provided with a plurality of light emitting areas arranged at intervals along the circumferential direction of the annular lampshade; and

the light source is arranged opposite to the first surface, light rays emitted by the light source are emitted into the first surface and are emitted out of the light emitting areas to form a plurality of emergent light beams, the emergent light beams are converged in a micro-distance range to form a converged light beam, and the spot area of the converged light beam is larger than or equal to the viewing area of the micro-distance range.

2. The camera module of claim 1, wherein the plurality of light exiting regions includes at least one first light exiting region and at least one second light exiting region; the annular lampshade comprises at least one emitting part and at least one light conducting part which are integrally connected, the second surface of the emitting part is the first light emitting area, the light conducting part comprises a first conductor and a second conductor, the first conductor is positioned between the emitting part and the second conductor, part of the second surface of the second conductor is the second light emitting area, the first light emitted by the light source enters through the first surface of the emitting part and is emitted from the first light emitting area, and the second light emitted by the light source enters through the first surface of the first conductor, passes through the second conductor and is emitted from the second light emitting area.

3. The camera module according to claim 2, wherein the first conductor surrounds the emitting portion, and a first end of the second conductor corresponds to one of the second light emitting regions; the second end of the second conductor corresponds to the other second light emitting area, and the first end of the second conductor and the second end of the second conductor are respectively located on two sides of the first conductor and are arranged along the circumferential direction of the annular lampshade.

4. The camera module according to claim 2, wherein the first conductor surrounds at least a portion of a peripheral side of the emission portion, and an end of the second conductor away from the first conductor corresponds to one of the second light emission regions.

5. The camera module of claim 2, wherein the first light has a light intensity greater than the light intensity of the second light.

6. The camera module according to claim 2, wherein the emitting portion includes a first protrusion protruding from the first surface, the first protrusion has a first surface and a first peripheral surface surrounding the first surface, the first surface faces the light source, and an angle between a cross-sectional line corresponding to the first peripheral surface and a cross-sectional line corresponding to the first surface is greater than 90 ° in a longitudinal section of the first protrusion.

7. The camera module of claim 2, wherein the light conducting portion includes a first dielectric layer and a second dielectric layer stacked along an optical axis direction of the lens, the second dielectric layer is close to the light source relative to the first dielectric layer, and a refractive index of the second dielectric layer is greater than a refractive index of the first dielectric layer; at least part of the second light ray is totally reflected in the second medium layer.

8. The camera module of claim 7, wherein the critical angle of total reflection of the light emitted from the light source in the second dielectric layer is 45 ° to 60 °.

9. The camera module of claim 7, wherein an interface between the first dielectric layer and the second dielectric layer includes a first plane and a set of tilted surfaces connected, the first plane corresponding to a region between the first light exiting region and the second light exiting region, and an orthographic projection of the set of tilted surfaces on the second plane being located in the second light exiting region; the inclined plane group comprises at least one first inclined plane, and the first inclined plane extends from the first plane along the direction from the first medium layer to the second medium layer and away from the first plane.

10. The camera module of claim 9, wherein the set of angled surfaces further includes at least one second angled surface, the second angled surface is connected between two adjacent first angled surfaces, and the second angled surface extends from the first angled surface in a direction from the second dielectric layer to the second dielectric layer and away from the first plane.

11. The camera module of claim 9, wherein a surface of the second dielectric layer facing away from the first dielectric layer is a second plane, the second plane being parallel to the first plane.

12. The camera module according to any one of claims 7 to 11, wherein the light guide portion further includes a third dielectric layer, the second dielectric layer and the first dielectric layer are sequentially stacked, and a refractive index of the third dielectric layer is smaller than a refractive index of the second dielectric layer; the third medium layer is provided with a reflecting part, the reflecting part is used for reflecting the light rays in the third medium layer to the second medium layer, and the angle of at least part of the reflected light rays incident to the second medium layer is larger than the total reflection critical angle in the second medium layer.

13. The camera module according to claim 12, wherein the reflective portion includes a plurality of reflective strips disposed on the first surface of the second conductive body, one end of each reflective strip is connected to the outer annular surface of the annular lampshade, the other end of each reflective strip extends toward the inner annular surface of the annular lampshade, and the plurality of reflective strips are arranged along the circumferential direction of the annular lampshade; the outer surface of the reflection strip comprises a first reflection surface and a second reflection surface, and the first reflection surface and the second reflection surface are inclined relative to an interface between the third medium layer and the second medium layer.

14. The camera module of claim 13, wherein the reflective portion further comprises a plurality of reflective rings surrounding the emitting portion and disposed on the first surface of the first conductive body, and the plurality of reflective rings are sequentially disposed along a radial direction of the reflective rings; the outer surface of the reflection ring comprises a third reflection surface and a fourth reflection surface, and the third reflection surface and the fourth reflection surface are inclined relative to an interface between the third medium layer and the second medium layer.

15. The camera module of claim 3, wherein the number of the light sources is two, the number of the emitting portions is two, and the two light sources are uniformly distributed around the optical axis of the lens; the number of the light transmission parts is two, and each ejection part is positioned at the symmetrical center of one light transmission part; the two light conducting parts are a first conducting part and a second conducting part, orthographic projections of the first conducting part and the second conducting part on the second surface are in an axisymmetric structure, and one end of the first conducting part and one end of the second conducting part are connected and correspond to one second light emitting area; the other end of the first conductive part and the other end of the second conductive part are connected to each other and correspond to the other second light emitting region.

16. The camera module according to any one of claims 1 to 11, wherein the macro is in a range of 3mm to 10 mm.

17. The camera module according to any one of claims 3 to 11, wherein the first surface is further provided with an annular boss disposed around the through hole, and the emitting portion and the light transmitting portion are disposed on an outer periphery of the annular boss;

the camera module further comprises a lens base, a flexible circuit board and a supporting plate for supporting the flexible circuit board, the lens base bears the lens, and the end part, far away from the first surface, of the annular boss is connected with the lens base;

the flexible circuit board and the supporting plate are provided with openings, and the lens base is arranged in the openings; the first surface, the peripheral surface of the annular boss and the flexible circuit board are surrounded to form an accommodating space, and the light source is arranged on the flexible circuit board and is positioned in the accommodating space; the material of backup pad is the heat dissipation material.

18. The camera module of any of claims 1-11, wherein the range of the light source is greater than 10 cm.

19. An electronic device, comprising the camera module according to any one of claims 1 to 18, further comprising a controller, wherein the controller is electrically connected to the camera module and the light source, and is configured to control the light source to be turned on;

20. The electronic device according to claim 19, further comprising a rear cover and a light-transmitting cover plate, wherein the rear cover has a mounting hole, the light-transmitting cover plate is disposed in the mounting hole, the lens of the camera module and the annular lampshade both face the light-transmitting cover plate, at least one positioning protrusion is disposed on an outer peripheral side surface of the annular lampshade, the rear cover has at least one positioning groove adapted to the positioning protrusion, and the annular lampshade is mounted on the rear cover through the positioning protrusion and the positioning groove.