Flash lamp module and electronic equipment

Abstract

The embodiment of the invention provides a flash lamp module and electronic equipment, and belongs to the technical field of flash lamps. The flash lamp module comprises a collimating lens, a bearing part, a first light source and a second light source. The bearing part is used for bearing the collimating mirror, the first light source and the second light source and provided with a first through hole. The collimating mirror is arranged at an opening of the first through hole and used for collimating light emitted by the first light source through the first through hole. The first light source is arranged at the other opening of the first through hole, the first light source comprises a plurality of light-emitting parts arranged in an array, the distance between every two adjacent light-emitting parts is smaller than or equal to 0.35 mm, and each light-emitting part is used for emitting light to the collimating mirror. The second light source and the first light source are arranged at intervals in the direction perpendicular to the axial direction of the first through hole, and the second light source is used for emitting illumination light. By means of the arrangement, the flash lamp module can achieve various light supplementing schemes such as point, line and plane, and the diversified requirements of users are met.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of flashlights, and in particular to a flashlight module and an electronic device. Background Art

[0002] With the rapid development of electronic devices (such as smartphones), camera functions are becoming increasingly diverse. Interesting and playable features have become a key trend in camera photography for electronic devices. These electronic devices include a camera module and a flash module. The flash module is located next to the camera module and provides fill light for the camera module's photography, allowing it to capture images in dark environments (such as at night, on cloudy days, or under dim indoor lighting). However, existing flash modules can only provide fill light over a wide range at a fixed distance, resulting in a limited fill light effect that cannot meet the diverse needs of users. Summary of the Invention

[0003] The embodiments of the present application provide a flash module and an electronic device that can implement various fill-light solutions such as point, line, and surface to meet the diverse needs of users.

[0004] The first aspect of the present application provides a flash module, comprising a collimator, a carrier, a first light source, and a second light source. The carrier is used to carry the collimator, the first light source, and the second light source, and the carrier has a first through hole. The collimator is arranged at an opening of the first through hole, and the collimator is used to collimate the light emitted by the first light source through the first through hole. The first light source is arranged at another opening of the first through hole, and the first light source includes a plurality of light-emitting portions arranged in an array, and the spacing between two adjacent light-emitting portions is less than or equal to 0.35 mm, and each light-emitting portion is used to emit light toward the collimator. The second light source and the first light source are spaced apart in a direction perpendicular to the axial direction of the first through hole, and the second light source is used to emit illumination light.

[0005] When the flash module is working, the first light source and the second light source can emit light at the same time, or the first light source can emit light alone, or the second light source can emit light alone. When the first light source emits light, by controlling the light-emitting parts at different positions to emit light, the light emitted by the first light source is collimated by the collimator to form a light spot of a preset shape, for example, a light spot in the shape of a point, line, surface, cross, etc., to achieve diversified pattern fill light. When the second light source emits light, the illumination light emitted by the second light source can provide a large range of fill light for the photographed object, taking into account the traditional fill light function. When the first light source and the second light source emit light at the same time, they can not only provide fill light for the photographed object, but also provide a preset shape of light spot for patterned fill light for specific positions. Therefore, by combining the first light source and the second light source, not only can patterned fill light be achieved, but also traditional fill light solutions can be taken into account, providing a variety of fill light solutions, which can increase fun and playability and enhance the user's photography experience.

[0006] In one possible embodiment, the carrier further comprises a second through hole, the second light source is disposed at an opening of the second through hole, and the second light source and the first light source are disposed on the same side of the carrier along the axial direction of the first through hole. The flash module further comprises a light guide, at least a portion of which is disposed within the second through hole, with one end of the light guide proximate the second light source and the other end of the light guide proximate the other opening of the second through hole.

[0007] Thus, when the second light source is operating, the light guide transmits the illumination light emitted by the second light source to the side of the carrier that is opposite the second light source along the axial direction of the first through hole, so that the illumination light provides fill light for a wide range of the object being photographed, thereby meeting the fill light requirement. In addition, arranging the first and second light sources on the same side of the carrier can reduce the difficulty of controlling the first and second light sources.

[0008] In a possible embodiment, there are multiple light guides, which are arranged at circumferential intervals along the first through hole, each light guide corresponds to a second through hole, and at least a portion of each light guide is arranged in the corresponding second through hole and is used to transmit the illumination light emitted by the corresponding second light source.

[0009] In this way, each light guide can transmit the illumination light emitted by the corresponding second light source to the side of the carrier corresponding to the second light source, thereby achieving wide-range fill light. In addition, by providing multiple light guides, the wide-range fill light area can be expanded, which helps to improve the fill light range.

[0010] In a possible implementation, each second light source corresponds to a light guide member, and the light incident surface of the light guide member covers a range corresponding to at least 70° of the light output angle of the corresponding second light source.

[0011] In this way, the light guide can receive sufficient illumination light to ensure that the fill light effect meets the requirements.

[0012] In a possible implementation, the light guide is disposed inside the second through hole, and an end surface of the other end of the light guide is flush with a side wall of the supporting member.

[0013] This reduces the difficulty of locating the relative positions of the light guide and the carrier, helping to increase the speed of assembly of the light guide and the carrier. Furthermore, the aesthetics of the connection between the light guide and the carrier are improved, contributing to the aesthetics of the flashlight module. Finally, the axial length of the flashlight module in the first through hole can be reduced, contributing to the miniaturization of the flashlight module.

[0014] In a possible implementation, there is one light guide member, and the light guide member corresponds to one second through hole.

[0015] In this way, on the basis of achieving fill light in a wide range, by reducing the number of light guides, the cost of the flash module is helped to be reduced.

[0016] In a possible implementation, the flash module further includes a substrate connected to the carrier, and the first light source and the second light source are respectively mounted on the same side of the substrate.

[0017] In this way, the first and second light sources are mounted on the substrate, so that the first, second, and substrate components can form a single component. This reduces the number of flashlight module assembly steps and improves the production efficiency of the flashlight module. Furthermore, the number of components in the flashlight module can be reduced, thereby reducing the cost of the flashlight module. Furthermore, the difficulty of the carrier supporting the first and second light sources can be reduced.

[0018] In a possible implementation, the substrate is electrically connected to the first light source and the second light source respectively, and the substrate is used to supply power to the first light source and the second light source.

[0019] In this way, the number of parts of the flashlight module can be further reduced, the cost of the flashlight module can be reduced, and the structure of the flashlight module can be simplified.

[0020] In one possible embodiment, the first through hole includes a first hole segment and a second hole segment, the aperture of the first hole segment is larger than the aperture of the second hole segment, the first light source and the collimator are respectively arranged at opposite ends of the second hole segment, at least a portion of the collimator is arranged inside the first hole segment and covers the second hole segment, and the collimator receives light emitted by the first light source through the second hole segment.

[0021] In this way, the light emitted by the light-emitting portion at the edge of the first light source can also be collimated by the collimator, ensuring that the edge of the light spot is smooth, which can further improve the shape accuracy of the light spot.

[0022] In one possible embodiment, the collimating lens is a spherical lens that satisfies the following relationship: 7.7 mm ≤ F1 ≤ 14.3 mm, 4.4 mm ≤ R1 ≤ 5.9 mm, where F1 is the radius of curvature of the front surface of the spherical lens along the axis of the first through hole toward the first light source, and R1 is the radius of curvature of the rear surface of the spherical lens along the axis of the first through hole toward the first light source.

[0023] In this way, under the premise of ensuring that the collimator collimates the light emitted by the first light source, the axial distance between the first light source and the collimator in the first through hole can be reduced, thereby reducing the axial thickness of the flash module in the first through hole, which in turn helps to miniaturize the flash module.

[0024] In one possible embodiment, the collimating lens is an aspheric mirror, the front surface of the aspheric mirror is spherical, the rear surface of the aspheric mirror is aspherical, and the aspheric mirror satisfies the following relationship: 13 mm ≤ F2 ≤ 38 mm, 1 mm ≤ R2 ≤ 4 mm, and -1 ≤ K1 ≤ 0. Here, F2 is the radius of curvature of the front surface of the aspheric mirror along the axial direction of the first through hole facing away from the first light source, R2 is the radius of curvature of the rear surface of the aspheric mirror along the axial direction of the first through hole facing away from the first light source, and K1 is the Königsmann coefficient of the rear surface of the aspheric mirror.

[0025] This further reduces the distance between the collimating lens and the first light source in the axial direction of the first through hole, thereby reducing the thickness of the flash module in the axial direction of the first through hole, thereby facilitating miniaturization of the flash module. Furthermore, the aspherical mirror can be used to collimate the light emitted by the first light source to form a light spot of a predetermined shape.

[0026] In a possible implementation, the aspheric mirror satisfies the relationship: 17 mm ≤ F2 ≤ 20 mm.

[0027] In this way, the collimation effect of the aspheric mirror can be further improved, which helps to further improve the shape accuracy of the light spot formed by the light emitted by the first light source.

[0028] In one possible embodiment, the collimating lens is an aspheric mirror, and both the front and rear surfaces of the aspheric mirror are aspheric. The aspheric mirror satisfies the following relationship: 1 mm ≤ F3 ≤ 4 mm, 1 mm ≤ R2 ≤ 4 mm, -1 ≤ K1 ≤ 0, and -1 ≤ K2 ≤ 0. Here, F3 is the radius of curvature of the front surface of the aspheric mirror along the axial direction of the first through hole facing away from the first light source, R2 is the radius of curvature of the rear surface of the aspheric mirror along the axial direction of the first through hole facing away from the first light source, K1 is the Königsberg coefficient of the rear surface of the aspheric mirror, and K2 is the Königsberg coefficient of the front surface of the aspheric mirror.

[0029] This further reduces the distance between the collimating lens and the first light source in the axial direction of the first through hole, thereby reducing the thickness of the flash module in the axial direction of the first through hole, thereby facilitating miniaturization of the flash module. Furthermore, the aspherical mirror can be used to collimate the light emitted by the first light source to form a light spot of a predetermined shape.

[0030] In a possible implementation, the aspherical mirror satisfies the relationship: -0.84≤K2≤-0.59.

[0031] In this way, the collimation effect of the aspheric mirror can be further improved, which helps to further improve the shape accuracy of the light spot formed by the light emitted by the first light source.

[0032] In a possible implementation, the aspheric mirror satisfies the relationship: 2.0 mm ≤ F3 ≤ 2.7 mm.

[0033] In this way, the collimation effect of the aspheric mirror can be further improved, which helps to further improve the shape accuracy of the light spot formed by the light emitted by the first light source.

[0034] In a possible implementation, the aspherical mirror satisfies the relationship: -0.84≤K1≤-0.59.

[0035] In this way, the collimation effect of the aspheric mirror can be further improved, which helps to further improve the shape accuracy of the light spot formed by the light emitted by the first light source.

[0036] In a possible implementation, the aspheric mirror satisfies the relationship: 2.0 mm ≤ R2 ≤ 2.7 mm.

[0037] In this way, the collimation effect of the aspheric mirror can be further improved, which helps to further improve the shape accuracy of the light spot formed by the light emitted by the first light source.

[0038] In a possible implementation, along the axial direction of the first through hole, the thickness of the flash module is less than or equal to 10 mm.

[0039] In this way, the thickness of the flash module is reduced, which helps to miniaturize the flash module, so that the flash module can be applied to electronic devices with smaller thickness (such as mobile phones).

[0040] In a possible implementation, along the axial direction of the first through hole, the first light source and the second light source are respectively disposed on opposite sides of the carrier, and the carrier further includes an accommodating portion for accommodating at least a portion of the second light source.

[0041] In this way, the second light source can also directly emit illumination light toward the object being photographed, thereby achieving fill light over a large area.

[0042] In a possible implementation, the plurality of light-emitting portions of the first light source are arranged in an array along a first direction and a second direction, wherein the first direction, the second direction, and the axial direction of the first through hole are perpendicular to each other.

[0043] In this way, the types of light spots formed by the light emitted by the first light source can be increased, the fill light solutions can be further enriched, and it is helpful to further improve the fill light effect of the flash module.

[0044] In a possible implementation, each light-emitting portion in the first light source is configured to emit light independently.

[0045] In this way, the light emitting parts at different positions emit light to form light spots of different shapes, which helps to further enrich the fill light solution.

[0046] In one possible embodiment, the flashlight module further includes a controller electrically connected to the first light source and the second light source, respectively, and configured to control an operating mode of the flashlight module. The operating modes of the flashlight module include: a first mode in which the controller controls the second light source to emit illumination light; a second mode in which the controller controls at least one light-emitting portion of the first light source to emit light, such that light emitted by the first light source forms a light spot of a predetermined shape after being collimated by a collimating lens; and a third mode in which the controller controls the first light source and the second light source to emit light simultaneously.

[0047] In a possible implementation, the first light source is an arrayed miniLED light source.

[0048] In a possible implementation, the second light source is an LED light source.

[0049] A second aspect of the present application provides an electronic device, comprising a housing and a flash module as described in any one of the first aspects, wherein the flash module is disposed in the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A schematic structural diagram of an electronic device provided in an embodiment of the present application at a first viewing angle;

[0051] Figure 2 for Figure 1 A schematic structural diagram of the electronic device shown in the second viewing angle;

[0052] Figure 3 A schematic diagram of the three-dimensional structure of a flash module provided in an embodiment of the present application;

[0053] Figure 4 for Figure 3 A cross-sectional schematic diagram of the flash module shown;

[0054] Figure 5 for Figure 3 A schematic structural diagram of a flash module in which the first light source and the second light source are arranged on a substrate;

[0055] Figure 6 A method for driving a Figure 3 The driving schematic diagram of the flash module shown;

[0056] Figure 7a for Figure 3 The schematic diagram of the flash module when it is in the spot mode;

[0057] Figure 7b for Figure 3 A schematic diagram of a simulation of a light spot formed by the flash module shown;

[0058] Figure 7cfor Figure 3 Schematic diagram of the point light spot actually formed by the flash module shown;

[0059] Figure 8a for Figure 3 A schematic diagram of the light emission of the flash module shown in FIG. 1 is shown in FIG. 1 ;

[0060] Figure 8b for Figure 3 A schematic diagram of a simulation of a line spot formed by the flash module shown;

[0061] Figure 8c for Figure 3 Schematic diagram of the line spot actually formed by the flash module shown;

[0062] Figure 9a for Figure 3 The schematic diagram of the flash module lighting when it is in the surface mode;

[0063] Figure 9b for Figure 3 A schematic diagram of a simulation of a surface light spot formed by the flash module shown;

[0064] Figure 9c for Figure 3 Schematic diagram of the surface light spot actually formed by the flash module shown;

[0065] Figure 10a for Figure 3 A schematic diagram of the light emission of the flash module when it is in the divergent mode;

[0066] Figure 10b for Figure 3 A schematic diagram of a simulation of a diverging light spot formed by the flash module shown;

[0067] Figure 11 A cross-sectional schematic diagram of another flash module provided in an embodiment of the present application;

[0068] Figure 12 A cross-sectional schematic diagram of another flash module provided in an embodiment of the present application;

[0069] Figure 13 A cross-sectional schematic diagram of another flash module provided in an embodiment of the present application.

[0070] Description of reference numerals:

[0071] 100. Flashlight module;

[0072] 10. Collimating lens;

[0073] 20. Carrying member; 21. First through hole; 211. First hole section; 212. Second hole section; 22. Second through hole; 23. Accommodation portion;

[0074] 30. First light source; 31. Light-emitting unit;

[0075] 40. Second light source;

[0076] 50. Light guide;

[0077] 60. Substrate;

[0078] 70. Fixing parts;

[0079] 80. Controller;

[0080] 1. Electronic equipment;

[0081] 101, housing; 1011, frame; 1012, back cover; 1013, rear camera hole; 1014, flash hole;

[0082] 102. Display screen; 1021. Front camera hole;

[0083] 103. Front camera assembly; 104. Rear camera assembly;

[0084] 105. Motherboard; 106. Processor; 107. Memory; 108. Battery. DETAILED DESCRIPTION

[0085] In related art, electronic devices include a camera module and a flash module. The flash module is located next to the camera module and can provide fill light for the camera module's shooting, allowing the camera module to complete shooting in dark environments (such as at night, on cloudy days, or under dim indoor lights). However, existing flash modules can only provide fill light over a large range at a fixed distance, resulting in a single fill light effect that cannot meet the diverse needs of users.

[0086] In view of this, an embodiment of the present application provides a flash module 100 and an electronic device 1. The flash module 100 is composed of a first light source 30, a second light source 40 and a collimator 10. The light emitted by the light-emitting portion 31 at different positions in the first light source 30 can be collimated by the collimator 10 to form a light spot of a preset shape, such as a light spot in the shape of a point, line, or surface, thereby realizing patterned fill light, which can increase the fun and playability and enhance the user's photography experience. In addition, the second light source 40 can emit illumination light to perform large-scale fill light on the photographed object, taking into account traditional fill light requirements. Therefore, the flash module 100 has a variety of fill light solutions, can achieve a variety of fill light effects, can match the diverse needs of users, and enhance the fun and playability of taking pictures.

[0087] The electronic device 1 may include, but is not limited to, a mobile phone, a tablet, a computer, a camera, a monitoring device, a driving recorder, a smart bracelet, a smart watch, augmented reality (AR) glasses, an augmented reality helmet, virtual reality (VR) glasses, and other devices with a shooting function. In the embodiment of the present application, the electronic device 1 is described as a mobile phone.

[0088] Figure 1 This is a schematic structural diagram of an electronic device provided in an embodiment of the present application at a first viewing angle. Figure 2 for Figure 1 The structure diagram of the electronic device shown is at a second viewing angle.

[0089] See also Figure 1 As shown, the electronic device 1 includes a housing 101 and a flash module 100 . The flash module 100 is disposed in the housing 101 . The flash module 100 can provide fill light for the object being photographed to meet the user's shooting needs.

[0090] See also Figure 1 and Figure 2 As shown, the housing 101 may include a frame 1011 and a back cover 1012. The back cover 1012 is provided with a flash hole 1014. The flash module 100 is located inside the housing 101 and emits light through the flash hole 1014.

[0091] See also Figure 1 and Figure 2 As shown, the electronic device 1 may further include a display screen 102, a front camera assembly 103, a rear camera assembly 104, a mainboard 105, a processor 106, a memory 107, and a battery 108. Of course, the electronic device 1 may further include other components to complete the functions of the electronic device 1.

[0092] The display screen 102 is used to display images and may also include a touch function. The display screen 102 is mounted on the housing 101. The display screen 102 and the back cover 1012 are mounted on opposite sides of the frame 1011, respectively.

[0093] In some implementations, such as Figure 1 As shown, the rear cover 1012 is provided with at least one rear camera hole 1013. The rear camera assembly 104 is located inside the housing 101. The rear camera assembly 104 collects light from behind the electronic device 1 through the at least one rear camera hole 1013 to achieve photography. In this embodiment of the present application, "at least one" includes both one and multiple, multiple means more than two, and "more than" includes the number itself.

[0094] In some implementations, the front camera assembly 103 is located inside the housing 101 and below the display screen 102. Figure 2 As shown, the display screen 102 is provided with a front camera hole 1021 , and the front camera assembly 103 collects light in front of the electronic device 1 through the front camera hole 1021 to achieve shooting.

[0095] In some implementations, such as Figure 2 As shown, the motherboard 105 is located inside the housing 101, and the processor 106 and memory 107 are fixed to the motherboard 105. The display screen 102, the front camera assembly 103, and the rear camera assembly 104 are coupled to the processor 106. The memory 107 is used to store computer program code. Computer program code includes computer instructions. The processor 106 is used to invoke computer instructions to cause the electronic device 1 to perform corresponding operations, such as causing the display screen 102 to display a target image, causing the front camera assembly 103 and the rear camera assembly 104 to capture a target image, etc.

[0096] In some implementations, the battery 108 is electrically connected to the mainboard 105 for powering the electronic device 1 .

[0097] The implementation of the flash module 100 provided in the embodiment of the present application is described below with reference to the accompanying drawings.

[0098] Figure 3 This is a schematic diagram of the three-dimensional structure of a flash module provided in an embodiment of the present application. Figure 4 for Figure 3 The cross-sectional schematic diagram of the flash module shown is Figure 5 for Figure 3 The schematic diagram shows a structure in which the first light source and the second light source in the flash module are arranged on a substrate.

[0099] See also Figure 3 and Figure 4 As shown, the flash module 100 includes a collimator 10, a carrier 20, a first light source 30 and a second light source 40. The carrier 20 is used to support the collimator 10, the first light source 30 and the second light source 40, and the carrier 20 has a first through hole 21. The collimator 10 is arranged at an opening of the first through hole 21, and the collimator 10 is used to collimate the light emitted by the first light source 30 through the first through hole 21. The first light source 30 is arranged at another opening of the first through hole 21, and the first light source 30 includes a plurality of light-emitting portions 31 arranged in an array, and the spacing between two adjacent light-emitting portions 31 is less than or equal to 0.35 mm, and each light-emitting portion 31 is used to emit light toward the collimator 10. Along the axial direction with the first through hole 21 (such as Figure 4 The direction perpendicular to the X direction (e.g. Figure 4 Z direction or Figure 3The second light source 40 and the first light source 30 are spaced apart, and the second light source 40 is used to emit illumination light.

[0100] When the flash module 100 is working, the first light source 30 and the second light source 40 can emit light at the same time, or the first light source 30 can emit light alone, or the second light source 40 can emit light alone. When the first light source 30 emits light, by controlling the light-emitting parts 31 at different positions to emit light, the light emitted by the first light source 30 is collimated by the collimator 10 to form a light spot of a preset shape, for example, a light spot in the shape of a point, line, surface, cross, etc., to achieve diversified pattern fill light. When the second light source 40 emits light, the illumination light emitted by the first light source 30 can provide a large-scale fill light for the object being photographed, while taking into account the traditional fill light function. When the first light source 30 and the second light source 40 emit light at the same time, they can not only provide a large-scale fill light for the object being photographed, but also provide a preset-shaped light spot for patterned fill light for a specific position.

[0101] Therefore, by combining the first light source 30 and the second light source 40, not only can a light spot of a preset shape be formed to achieve patterned fill light, but also traditional fill light solutions can be taken into account, providing a variety of fill light solutions, which can increase fun and playability, meet the diverse needs of users, and enhance the user's photography experience.

[0102] In the embodiment of the present application, the carrier 20 is made of an opaque material to prevent the light emitted by the first light source 10 from being transmitted to the light guide 50 through the carrier 20, and to prevent the illumination light emitted by the second light source 40 from being transmitted to the collimator 10 through the carrier 20.

[0103] In the embodiment of the present application, the distance between two adjacent light emitting parts 31 is less than or equal to 0.35 mm, which can ensure that the light emitted by the multiple light emitting parts 31 forms a light spot that meets the requirements after being collimated by the collimator 10, and can achieve a seamless lighting effect. In addition, the distance between two adjacent light emitting parts 31 can be understood as the distance between the two adjacent light emitting parts 31 in the direction perpendicular to the axial direction of the first through hole 21, for example Figure 5 As shown, two adjacent light emitting portions 31 are in the first direction (eg Figure 5 The spacing between two adjacent light emitting parts 31 in the second direction (such as Figure 5 The spacing in the Z direction is less than or equal to 0.35 mm.

[0104] There is no limitation on the specific value of the distance between two adjacent light emitting parts 31. The distance between two adjacent light emitting parts 31 can be 0.35mm, 0.34mm, 0.3mm, 0.29mm, 0.25mm, etc. For example, Figure 4 The distance between two adjacent light emitting parts 31 can be 0.25 mm.

[0105] There is no limitation on the number of the light emitting units 31. For example, the number of the light emitting units 31 is greater than or equal to 160.

[0106] There is no limitation on the specific size of the light emitting portion 31. For example, the size of the light emitting portion 31 is between 4 mm and 5 mm. The size of the light emitting portion 31 refers to the maximum size of the light emitting portion 31 in a direction perpendicular to the axial direction of the first through hole 21.

[0107] For example, in combination Figure 4 and Figure 5 It can be seen that the projection shape of the light emitting portion 31 along the axial direction of the first through hole 21 is a rectangle. Of course, the projection shape of the light emitting portion 31 along the axial direction of the first through hole 21 can also be other shapes, such as a circle, a triangle, etc.

[0108] In some implementations, each light-emitting unit 31 in the first light source 30 is configured to emit light independently. In other implementations, each light-emitting unit 31 in a portion of the first light source 30 emits light independently, while each light-emitting unit 31 in another portion emits light synchronously. Therefore, whether multiple light-emitting units 31 emit light independently or partially independently, a variety of light spots of different shapes can be formed, achieving a variety of patterned fill light solutions. However, having each light-emitting unit 31 emit light independently can further increase the variety of light spots and enrich the fill light solutions.

[0109] In some possible implementations, see Figure 5 As shown, the plurality of light emitting portions 31 in the first light source 30 are arranged along a first direction (eg Figure 5 Y direction) and the second direction (such as Figure 5 The first direction, the second direction and the axial direction of the first through hole 21 are perpendicular to each other.

[0110] In this way, the number of types of light spots formed by the light emitted by the first light source 30 can be increased, the fill light solutions can be enriched, and it is helpful to further improve the fill light effect of the flash module 100.

[0111] It should be noted that, in addition to being arranged in a two-dimensional array, in some implementations, the multiple light-emitting portions 31 in the first light source 30 can also be arranged side by side and at intervals along a direction perpendicular to the axial direction of the first through hole 21 to form a one-dimensional arrangement, and a variety of light spots of different shapes can also be achieved.

[0112] In some possible implementations, the first light source 30 is an arrayed miniLED light source. Of course, the first light source 30 may also be other types of array light sources.

[0113] In some possible implementations, the second light source 40 may be an LED light source. Of course, the second light source 40 may also be other types of light sources.

[0114] In some possible implementations, see Figure 4 As shown, the light emitting portion 31 is disposed inside the first through hole 21, which can reduce the axial dimension of the flash module 100 in the first through hole 21, thereby helping to reduce the thickness of the flash module 100. Of course, in addition to being disposed inside the first through hole 21, a portion of the light emitting portion 31 can also be disposed inside the first through hole 21 and another portion outside the first through hole 21.

[0115] In some possible implementations, see Figure 4 As shown, the first through hole 21 includes a first hole segment 211 and a second hole segment 212. The aperture of the first hole segment 211 is larger than the aperture of the second hole segment 212. The first light source 30 and the collimator 10 are respectively arranged at opposite ends of the second hole segment 212. At least a portion of the collimator 10 is arranged inside the first hole segment 211 and covers the second hole segment 212. The collimator 10 receives light emitted by the first light source 30 through the second hole segment 212.

[0116] In this way, the light emitted by the light emitting portion 31 at the edge of the first light source 30 can also be collimated by the collimator 10, so that the edge of the light spot is smooth, which can further improve the shape accuracy of the light spot.

[0117] Continue to see Figure 4 As shown, the first hole segment 211 and the second hole segment 212 form a step surface, which abuts against the collimator lens 10 in the axial direction of the first through hole 21 , and the collimator lens 10 can cover the second hole segment 212 .

[0118] In some possible implementations, see Figure 4 As shown, the flash module 100 further includes a fixing member 70 having an annular structure. One end of the fixing member 70 is disposed within the first hole section 211 and abuts against the collimating lens 10 in the axial direction of the first through hole 21, so that the collimating lens 10 abuts against the stepped surface. The interior of the fixing member 70 is used to allow light collimated by the collimating lens 10 to pass through, thereby forming a light spot of a specific shape.

[0119] See also Figure 4 As shown, the fixing member 70 is disposed inside the first through hole 21, which can reduce the axial dimension of the flash module 100 in the first through hole 21, thereby helping to reduce the thickness of the flash module 100. Of course, a portion of the fixing member 70 can also be disposed inside the first through hole 21 and another portion can be disposed outside the first through hole 21.

[0120] It should be noted that the fixing member 70 is Figure 4 In addition to the ring structure shown, other structures are also possible and meet the following principles: 1. It does not affect the emission of the light collimated by the collimator 10 . 2. It can fix the collimator 10 on the carrier 20 .

[0121] For example, the fixing member 70 can be fixedly connected to the carrier 20 by bonding. However, the fixing member 70 can also be fixedly connected to the carrier 20 by other means.

[0122] Continue to see Figure 3 and Figure 4 As shown, the carrier 20 further has a second through hole 22, and the second light source 40 is disposed at one opening of the second through hole 22. The second light source 40 and the first light source 30 are disposed on the same side of the carrier 20 along the axial direction of the first through hole 21. The flash module 100 also includes a light guide 50, at least partially disposed within the second through hole 22, with one end of the light guide 50 proximate the second light source 40 and the other end of the light guide 50 proximate the other opening of the second through hole 22.

[0123] When the second light source 40 is operating, the light guide 50 transmits the illumination light emitted by the second light source 40 to the side of the carrier 20 opposite the second light source 40 along the axial direction of the first through hole 21, so that the illumination light provides fill light for a wide range of the object being photographed. In addition, arranging the first light source 30 and the second light source 40 on the same side of the carrier 20 can reduce the difficulty of controlling the first light source 30 and the second light source 40.

[0124] See also Figure 4 As shown, the second light source 40 is disposed inside the second through hole 22, which can reduce the axial dimension of the flash module 100 relative to the first through hole 21, thereby helping to reduce the thickness of the flash module 100. Of course, in addition to being disposed inside the second through hole 22, a portion of the second light source 40 can also be disposed inside the second through hole 22 and another portion outside the second through hole 22.

[0125] Continue to see Figure 4 As shown, the axial direction of the second through hole 22 is parallel to the axial direction of the first through hole 21. However, in some implementations, the axial direction of the first through hole 21 may intersect with the axial direction of the second through hole 22 and not be perpendicular.

[0126] For example, see Figure 4 As shown, the light guide 50 is disposed inside the corresponding second through hole 22, which can reduce the axial size of the flash module 100 in the first through hole 21. In some implementations, a portion of the light guide 50 can also be disposed inside the second through hole 22 and another portion can be disposed outside the second through hole 22.

[0127] Exemplarily, the light guide 50 is a cylindrical structure. Of course, the light guide 50 may also have other structures, for example, the light guide 50 may also be a plate-like structure, the length of which extends along the axial direction of the first through hole 21, and the longitudinal cross-section of the plate-like structure may be an arc, a triangle, a semicircle, etc., and the longitudinal cross-section of the plate-like structure is perpendicular to the axial direction of the first through hole 21.

[0128] The structure of the second through hole 22 is adapted to the structure of the light guide 50, so that the gap between the light guide 50 and the second through hole 22 meets the requirements. For example, the light guide 50 is a cylindrical structure, and correspondingly, the second through hole 22 is a circular through hole.

[0129] In some possible implementations, there are multiple light guides 50, for example Figure 3 As shown, there are four light guides 50. Of course, the number of light guides 50 can be more or less than four. The plurality of light guides 50 are spaced apart along the circumference of the first through hole 21 and arranged around the collimator 10. Each light guide 50 corresponds to a second through hole 22. At least a portion of each light guide 50 is disposed within the corresponding second through hole 22 and is used to guide the illumination light emitted by the corresponding second light source 40.

[0130] In this way, each light guide 50 can transmit the illumination light emitted by the corresponding second light source 40 to the side of the carrier 20 corresponding to the second light source 40, thereby achieving a wide range of fill light. In addition, by providing multiple light guides 50, it is helpful to increase the fill light range.

[0131] For example, in combination Figure 3 and Figure 4 It can be seen that each light guide 50 is disposed inside the corresponding second through hole 22. In some implementations, a portion of each light guide 50 can be disposed inside the corresponding second through hole 22 and another portion can be disposed outside the corresponding second through hole 22.

[0132] For example, see Figure 4 As shown, the light guide 50 corresponds to one second light source 40. In some implementations, the light guide 50 may also correspond to multiple second light sources 40.

[0133] For example, each light guide 50 corresponds to the same number of second light sources 40 , for example Figure 4 As shown, each light guide 50 corresponds to a second light source 40. In some implementations, any two light guides 50 may correspond to different numbers of second light sources 40. In other implementations, some of the multiple light guides 50 may correspond to the same number of second light sources 40, while another portion may correspond to different numbers of second light sources 40.

[0134] It should be noted that, in addition to the number of light guides 50 being multiple, in some possible implementations, the number of light guides 50 may also be one, with each light guide 50 corresponding to one second through hole 22. In this case, the light guide 50 may correspond to one or more second light sources 40. In this way, while achieving fill light over a wide range, reducing the number of light guides 50 helps reduce the cost of the flash module 100.

[0135] In some possible implementations, each second light source 40 corresponds to a light guide 50, and the light incident surface of the light guide 50 covers the light output angle of the corresponding second light source 40 (eg Figure 4 The range corresponding to at least 70° of β or -β) (such as Figure 4 In this way, the light guide 50 can receive sufficient illumination light to ensure that the fill light effect meets the requirements.

[0136] The light incident surface refers to the end surface of the light guide 50 along the axial direction of the first through hole 21 facing the second light source 40. In addition, the light output angle (light emitting angle) of the second light source 40 refers to the angle formed by the light emitted by the second light source 40 and the center line L, such as Figure 4 As shown, the light output angles of the second light source 40 are ±β, where −β and β are symmetrical about the center line L. It can be understood that the beam angle of the second light source 40 is 2β.

[0137] For example, Figure 4 As shown, α is less than the light emission angle β of the second light source 40. In some implementations, α may also be equal to the light emission angle β of the second light source 40.

[0138] In some possible implementations, such as Figure 4 As shown, the light guide 50 is disposed inside the second through hole 22, and the end surface of the other end of the light guide 50 is flush with the side wall of the carrier 20. Alternatively, in other possible implementations, when the light guide 50 is disposed inside the second through hole 22, the end surface of the other end of the light guide 50 may also be spaced apart from the side wall of the carrier 20 in the axial direction of the first through hole 21.

[0139] When the light guide 50 is arranged inside the second through hole 22, the end face of the other end of the light guide 50 can be flush with the side wall of the carrier 20 or can be located between the side wall of the carrier 20 and the second light source 40. The light guide 50 can transmit the illumination light emitted by the second light source 40 to the object being photographed and achieve large-scale fill light.

[0140] However, when the end surface of the other end of the light guide 50 is flush with the side wall of the carrier 20, it is easier to position the light guide 50 relative to the carrier 20, which helps speed up the assembly of the light guide 50 and the carrier 20. Furthermore, the aesthetics of the connection between the light guide 50 and the carrier 20 can be improved, which helps improve the aesthetics of the flash module 100. Finally, the axial length of the flash module 100 in the first through hole 21 can be reduced, which helps to miniaturize the flash module 100.

[0141] In some possible implementations, such as Figure 4 and Figure 5 As shown, the flash module 100 further includes a substrate 60 , which is connected to the carrier 20 , and the first light source 30 and the second light source 40 are respectively mounted on the same side of the substrate 60 .

[0142] In this way, by mounting the first light source 30 and the second light source 40 on the same substrate 60, the first light source 30, the second light source 40, and the substrate 60 can form a single component, thereby reducing the number of assembly steps for the flashlight module 100 and thereby improving the production efficiency of the flashlight module 100. Furthermore, the number of components in the flashlight module 100 can be reduced, thereby reducing the cost of the flashlight module 100. Furthermore, the difficulty of the carrier 20 in supporting the first light source 30 and the second light source 40 can be reduced.

[0143] It should be noted that, in addition to being installed on the same substrate 60, the first light source 30 and the second light source 40 may, in some implementations, also include two substrates 60, which are respectively connected to the carrier 20, with the first light source 30 installed on one of the substrates 60 and the second light source 40 installed on the other substrate 60.

[0144] In some possible implementations, the substrate 60 is electrically connected to the first light source 30 and the second light source 40 respectively, and the substrate 60 is used to supply power to the first light source 30 and the second light source 40 so that the first light source 30 and the second light source 40 emit light.

[0145] In this way, the number of parts of the flash module 100 can be further reduced, and the cost of the flash module 100 can be reduced. In addition, the structure of the flash module 100 can be simplified.

[0146] It is understood that by controlling the power on or off of the light emitting units 31 at different positions in the first light source 30, the light emitted by the light emitting units 31 at different positions can form a light spot of a specific shape after passing through the collimator 10, thereby achieving patterned fill light. Similarly, by controlling the power on or off of the second light source 40, a wide range of fill light can be achieved.

[0147] It should be noted that, in addition to powering the first light source 30 and the second light source 40 through the substrate 60 , the first light source 30 and the second light source 40 may also be powered through other structures to achieve large-scale fill light and / or patterned fill light.

[0148] In some possible implementations, the flash module 100 may further include a controller 80, which is electrically connected to the first light source 30 and the second light source 40, respectively, and is used to control the operating mode of the flash module 100. The operating modes of the flash module 100 include: a first mode, in which the controller 80 is used to control the second light source 40 to emit illumination light. A second mode, in which the controller 80 is used to control at least one light-emitting portion 31 in the first light source 30 to emit light, so that the light emitted by the first light source 30 forms a light spot of a preset shape after being collimated by the collimating lens 10. A third mode, in which the controller 80 is used to control the first light source 30 and the second light source 40 to emit light simultaneously.

[0149] The controller 80 is electrically connected to the mainboard 105 of the electronic device 1. The controller 80 receives control signals from the mainboard 105 and controls the operating mode of the flash module 100, causing at least one of the first light source 30 and the second light source 40 to emit light. Furthermore, the controller 80 can also control the at least one light-emitting portion 31 of the first light source 30 to emit light to form a light spot of a specific shape.

[0150] There is no limitation on the specific installation location of the controller 80. In some implementations, the controller 80 can be mounted on the mainboard 105 of the electronic device 1 and electrically connected to the mainboard 105. In other implementations, the controller 80 can also be mounted on the substrate 60 and electrically connected to the first light source 30 and the second light source 40 via the substrate 60. In still other implementations, the controller 80 can also be mounted on the flash module 100 or other structural components of the electronic device 1, for example, the controller 80 can also be mounted on the carrier 20.

[0151] Figure 6 A method for driving a Figure 3 The driving schematic diagram of the flash module is shown.

[0152] For example, see Figure 6 As shown, the controller 80 can be a four-channel chip that can realize four lighting modes: point, line, surface and divergent spot. Figure 6 In the figure, MCU refers to the processor 106 on the mainboard 105 of the electronic device 1, and LED1, LED2, LED3 and LED4 refer to four channels of the controller 80 respectively.

[0153] Figure 7a for Figure 3The schematic diagram of the flash module in the point mode is shown. Figure 7b for Figure 3 The simulation diagram of the spot light formed by the flash module is shown in FIG. Figure 7c for Figure 3 The schematic diagram of the actual point light spot formed by the flash module is shown. Figure 7b The light spot shown is circular with a diameter of approximately 7 cm. Figure 7c The light spot shown is circular with a diameter of approximately 7 cm.

[0154] Combine Figures 5 to 7a As shown, the point mode can control a light emitting portion 31 at the center position (such as Figure 5 As shown in a) in the figure, light can be emitted to form a point light spot. Figure 7b and Figure 7c It can be seen that the light emitted by a light emitting portion 31 in the flash module 100 can form a point light spot of a preset shape and size after being collimated by the collimating lens 10 .

[0155] Figure 8a for Figure 3 The schematic diagram of the flash module in line mode is shown. Figure 8b for Figure 3 The simulation diagram of the line spot formed by the flash module is shown. Figure 8c for Figure 3 The schematic diagram of the line spot actually formed by the flash module is shown. Figure 8b The line spot shown is a straight line with a width of 7 cm and a length of 45 cm. Figure 8c The line spot shown is a straight line with a width of 7 cm and a length of 45 cm.

[0156] Combine Figure 5 、 Figure 6 and Figure 8a As shown, the line mode can control multiple light emitting units 31 (such as LED1 and LED2) arranged in a row. Figure 5 (b) emits light and forms a line spot. Figure 8b and Figure 8c It can be seen that the light emitted by a row of light emitting units 31 in the flash module 100 can form a line light spot of a preset shape and size after being collimated by the collimating lens 10 .

[0157] Figure 9a for Figure 3 The schematic diagram of the flash module in the surface mode is shown. Figure 9b for Figure 3 The simulation diagram of the surface light spot formed by the flash module is shown. Figure 9c for Figure 3The schematic diagram of the actual surface light spot formed by the flash module is shown. Figure 9b The surface spot shown is circular with a diameter of 45 cm. Figure 9c The surface spot shown is circular with a diameter of 46 cm.

[0158] Combine Figure 5 、 Figure 6 and Figure 9a As shown, the surface mode controls multiple light emitting parts 31 (eg, Figure 5 All the light emitting parts 31) emit light, forming a circular surface light spot. Figure 9b and Figure 9c It can be seen that after the light emitted by all the light emitting units 31 in the flash module 100 is collimated by the collimating lens 10 , a surface light spot of a preset shape can be formed.

[0159] Figure 10a for Figure 3 The schematic diagram of the flash module in the divergent mode is shown. Figure 10b for Figure 3 A simulation diagram of the divergent light spot formed by the flash module is shown.

[0160] Combine Figure 5 、 Figure 6 and Figure 10a As shown, the divergent mode can be controlled by channel LED4 Figure 5 The four second light sources 40 emit illumination light to achieve wide range fill light. Figure 10b It can be seen that after the light emitted by all the light emitting units 31 in the flash module 100 is collimated by the collimating lens 10 , a surface light spot of a preset shape can be formed.

[0161] In some possible implementations, along the axial direction of the first through hole 21 , the thickness of the flash module 100 is less than or equal to 10 mm.

[0162] In this way, the thickness of the flash module 100 is reduced, which helps to miniaturize the flash module 100 , so that the flash module 100 can be applied to electronic devices 1 with a smaller thickness (such as mobile phones).

[0163] There is no limitation on the specific thickness of the flash module 100. For example, the thickness of the flash module 100 may be greater than or equal to 5 mm and less than or equal to 10 mm.

[0164] In the embodiment of the present application, the collimating lens 10 is used to collimate the light emitted by the light emitting unit 31. In this case, the collimating lens 10 can be a spherical lens or an aspherical lens. When the collimating lens 10 is an aspherical lens, the front surface of the aspherical lens can be a spherical surface or an aspherical surface, and the rear surface of the aspherical lens is an aspherical surface. The front surface of the aspherical lens is located between the first light source 30 and the rear surface of the aspherical lens.

[0165] In some possible implementations, see Figure 4 As shown, the collimating lens 10 can be a spherical lens, which satisfies the relationship: 7.7mm≤F1≤14.3mm, 4.4mm≤R1≤5.9mm. Wherein, F1 is the axial direction of the spherical lens along the first through hole 21 (as shown in FIG. Figure 4 The curvature radius of the front surface of the spherical mirror toward the first light source 30 in the X direction, R1 is the axial direction of the spherical mirror along the first through hole 21 (such as Figure 4 The curvature radius of the rear surface (in the X direction) facing away from the first light source 30.

[0166] In this way, under the premise of ensuring that the collimator 10 collimates the light emitted by the first light source 30, the axial distance between the first light source 30 and the collimator 10 in the first through hole 21 can be reduced, thereby reducing the axial thickness of the flash module 100 in the first through hole 21, which in turn helps to miniaturize the flash module 100.

[0167] Among them, the curvature radius F1 of the front surface of the spherical mirror can be 7.7mm, 7.9mm, 8.0mm, 8.5mm, 8.9mm, 9.0mm, 9.5mm, 9.79mm, 10.0mm, 10.7mm, 11mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.1mm, 14.2mm or 14.3mm, etc.

[0168] Among them, the curvature radius R1 of the back surface of the spherical mirror can be 4.4mm, 4.5mm, 4.8mm, 4.95mm, 5.0mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm, 5.5mm, 5.6mm, 5.7mm, 5.8mm or 5.9mm, etc.

[0169] It should be noted that when the collimating lens 10 is a spherical mirror, the spherical mirror does not have to satisfy the relationship: 7.7mm≤F1≤14.3mm, 4.4mm≤R1≤5.9mm. In this case, the spherical mirror can also achieve a collimating effect. The distance between the spherical mirror and the first light source 30 in the axial direction of the first through hole 21 is relatively large. However, this will increase the thickness of the flash module 100 in the axial direction of the first through hole 21. In other words, the distance between the spherical mirror and the first light source 30 in the axial direction of the first through hole 21 is increased.

[0170] Figure 11 A cross-sectional schematic diagram of another flash module provided in an embodiment of the present application.

[0171] Figure 11 and Figure 4 The difference is that the collimating lens 10 is an aspherical lens. Figure 11 As shown, the front surface of the aspheric mirror is spherical, the back surface of the aspheric mirror is aspherical, and the aspheric mirror satisfies the relationship: 13mm≤F2≤38mm, 1mm≤R2≤4mm, -1≤K1≤0. Among them, F2 is the axial direction of the aspheric mirror along the first through hole 21 (as shown in FIG. Figure 11 The curvature radius of the front surface of the aspheric mirror facing away from the first light source 30 (in the X direction), R2 is the curvature radius of the aspheric mirror along the axial direction of the first through hole 21 (such as Figure 11 The curvature radius of the rear surface (in the X direction) facing away from the first light source 30, K1 is the Königsmann coefficient of the rear surface of the aspherical mirror.

[0172] By limiting the curvature radius of the front and rear surfaces of the aspherical mirror and the Königskohl coefficient of the rear surface, the distance between the collimating lens 10 and the first light source 30 in the axial direction of the first through hole 21 can be further reduced, thereby reducing the thickness of the flash module 100 in the axial direction of the first through hole 21, thereby facilitating the miniaturization of the flash module 100. At the same time, the aspherical mirror can also ensure that the light emitted by the first light source 30 is collimated to form a predetermined light spot shape.

[0173] For example, the aspheric mirror can satisfy the relationship: 17 mm ≤ F2 ≤ 20 mm. This can further improve the collimation effect of the aspheric mirror, and help further improve the shape accuracy of the light spot formed by the light emitted by the first light source 30.

[0174] Of course, the curvature radius F2 of the front surface of the aspherical mirror can also be between 13 mm and 17 mm, or between 20 mm and 38 mm. In this case, the aspherical mirror can also collimate the light emitted by the first light source 30 .

[0175] There is no limitation on the specific value of the radius of curvature F2 of the front surface of the aspherical mirror. The radius of curvature F2 of the front surface of the aspherical mirror may be 14 mm, 17 mm, 18 mm, 22 mm, 29 mm, 35 mm, or 37 mm.

[0176] For example, the aspheric mirror can satisfy the relationship: 2.0 mm ≤ R2 ≤ 2.7 mm. This can further improve the collimation effect of the aspheric mirror, and help further improve the shape accuracy of the light spot formed by the light emitted by the first light source 30.

[0177] Of course, the curvature radius R2 of the rear surface of the aspherical mirror can also be between 1.0 mm and 2.0 mm, or between 2.7 mm and 4 mm. In this case, the aspherical mirror can also collimate the light emitted by the first light source 30 .

[0178] There is no limitation on the specific value of the radius of curvature R2 of the rear surface of the aspherical mirror. The radius of curvature R2 of the rear surface of the aspherical mirror may be 1.5 mm, 2.0 mm, 2.5 mm, 2.695 mm, 3.0 mm, or 3.5 mm, etc.

[0179] For example, the aspheric mirror may satisfy the relationship: -0.84≤K1≤-0.59. In this way, the collimation effect of the aspheric mirror may be further improved, which helps to further improve the shape accuracy of the light spot formed by the light emitted by the first light source 30.

[0180] Of course, the Konige coefficient K1 of the rear surface of the aspherical mirror may also be between -1 and -0.59, or between -0.84 and 0. In this case, the aspherical mirror may also collimate the light emitted by the first light source 30 .

[0181] There is no limitation on the specific value of the König coefficient K1 of the rear surface of the aspherical mirror. The König coefficient K1 of the rear surface of the aspherical mirror may be -1, -0.3, -0.5, -0.68, -0.8, or -0.95.

[0182] Figure 12 A cross-sectional schematic diagram of another flash module provided in an embodiment of the present application.

[0183] Figure 12 and Figure 11 The difference is that the front surface of the aspheric mirror is aspheric. The aspheric mirror satisfies the relationship: 1mm≤F3≤4mm, 1mm≤R2≤4mm, -1≤K1≤0, -1≤K2≤0. F is the axial direction of the aspheric mirror along the first through hole 21 (such as Figure 12 The curvature radius of the front surface of the aspheric mirror facing away from the first light source 30 (in the X direction), R is the axial direction of the aspheric mirror along the first through hole 21 (such as Figure 12 The curvature radius of the rear surface (in the X direction) facing away from the first light source 30, K1 is the Konikol coefficient of the rear surface of the aspheric mirror, and K2 is the Konikol coefficient of the front surface of the aspheric mirror.

[0184] In this way, the distance between the collimating lens 10 and the first light source 30 in the axial direction of the first through hole 21 can be further reduced, thereby reducing the thickness of the flash module 100 in the axial direction of the first through hole 21, thereby facilitating miniaturization of the flash module 100. At the same time, the aspherical mirror can also be used to collimate the light emitted by the first light source 30 to form a light spot of a predetermined shape.

[0185] For example, the aspheric mirror can satisfy the relationship: 2.0 mm ≤ F3 ≤ 2.7 mm. This can further improve the collimation effect of the aspheric mirror, and help further improve the shape accuracy of the light spot formed by the light emitted by the first light source 30.

[0186] Of course, the curvature radius F3 of the front surface of the aspherical mirror can also be between 1.0 mm and 2.0 mm, or between 2.7 mm and 4 mm. In this case, the aspherical mirror can also collimate the light emitted by the first light source 30 .

[0187] There is no limitation on the specific value of the curvature radius F3 of the front surface of the aspherical mirror. The curvature radius F3 of the front surface of the aspherical mirror may be 1.5 mm, 2.0 mm, 2.5 mm, 2.695 mm, 3.0 mm, or 3.5 mm.

[0188] For example, the aspheric mirror may satisfy the relationship: -0.84≤K2≤-0.59. In this way, the collimation effect of the aspheric mirror may be further improved, which helps to further improve the shape accuracy of the light spot formed by the light emitted by the first light source 30.

[0189] Of course, the König coefficient K2 of the front surface of the aspherical mirror may also be between -1 and -0.59, or between -0.84 and 0. In this case, the aspherical mirror may also collimate the light emitted by the first light source 30 .

[0190] There is no limitation on the specific value of the König coefficient K2 of the front surface of the aspheric mirror. The König coefficient K2 of the front surface of the aspheric mirror may be -1, -0.3, -0.5, -0.68, -0.8, or -0.95, etc.

[0191] It should be noted that the rear surface of the aspheric mirror is an aspheric surface. The curvature radius R2 and the König coefficient K1 of the rear surface of the aspheric mirror have been explained in the above content, so they will not be repeated here.

[0192] In the above description, the first light source 30 and the second light source 40 are disposed on the same side of the carrier 20 along the axial direction of the first through hole 21 . However, the first light source 30 and the second light source 40 may also be disposed on opposite sides of the carrier 20 .

[0193] Figure 13 A cross-sectional schematic diagram of another flash module provided in an embodiment of the present application.

[0194] Figure 13 and Figure 4 The difference is that the first light source 30 and the second light source 40 are not arranged on the same side of the carrier 20. Figure 13 As shown, along the axial direction of the first through hole 21 (as Figure 13 The first light source 30 and the second light source 40 are respectively arranged on opposite sides of the carrier 20. The carrier 20 also has a receiving portion 23 for receiving at least part of the second light source 40. In this way, the second light source 40 can also directly emit illumination light toward the object being photographed, achieving fill light over a wide range.

[0195] For example, see Figure 13 As shown, the accommodating portion 23 can be a through-hole extending through the carrier 20. This is used to accommodate at least a portion of the second light source 40 and to allow the structure for supplying power to the second light source 40 and the controller 80 to pass through, thereby electrically connecting the second light source 40 and the controller 80. Of course, the accommodating portion 23 can also be other structures besides a through-hole. In some implementations, the accommodating portion 23 can also be a recessed groove.

[0196] For example, Figure 13 As shown, the second light source 40 is disposed inside the accommodating portion 23. In some implementations, a portion of the second light source 40 may be disposed inside the accommodating portion 23, and another portion may be disposed outside the accommodating portion 23.

[0197] How the second light source 40 communicates with the controller 80 ( Figure 13 For example, the flash module 100 may further include an electrical connector (not shown in the figure), which is disposed in the receiving through hole, with a first end of the electrical connector electrically connected to the second light source 40, a second end of the electrical connector electrically connected to the substrate 60, and the electrical connector electrically connected to the controller 80 through the substrate 60.

[0198] Exemplarily, there are multiple second light sources 40 , which are spaced apart around the collimator 10 along the axial direction of the first through hole 21 , each second light source 40 corresponds to a receiving portion 23 , and each second light source 40 is disposed inside the corresponding receiving portion 23 .

[0199] Of course, in addition to the one-to-one correspondence between the accommodating portion 23 and the second light source 40 , one accommodating portion 23 may also correspond to multiple second light sources 40 . In this case, each accommodating portion 23 is used to accommodate the corresponding multiple second light sources 40 .

[0200] It should be noted that, in addition to being multiple, the number of the second light source 40 may also be one.

[0201] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0202] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0203] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0204] The term "plurality" in this document refers to two or more. The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the related objects; in a formula, the character " / " indicates a "division" relationship between the related objects.

[0205] It will be understood that the various numerical numbers involved in the embodiments of the present application are merely distinctions for the convenience of description and are not intended to limit the scope of the embodiments of the present application.

Claims

1. A flashlight module, characterized in that: It includes a collimating lens, a carrier, a first light source and a second light source; The supporting member is used to support the collimating mirror, the first light source and the second light source, and the supporting member has a first through hole; The collimator is disposed at an opening of the first through hole, and is used to collimate the light emitted by the first light source through the first through hole; The first light source is disposed at another opening of the first through hole, the first light source includes a plurality of light-emitting portions arranged in an array, a distance between two adjacent light-emitting portions is less than or equal to 0.35 mm, and each light-emitting portion is configured to emit light toward the collimator; The second light source is spaced apart from the first light source along a direction perpendicular to the axial direction of the first through hole, and the second light source is used to emit illumination light.

2. The flash module according to claim 1, wherein: The carrier further has a second through hole, the second light source is arranged at an opening of the second through hole, and the second light source and the first light source are arranged on the same side of the carrier along the axial direction of the first through hole; The flash module further includes a light guide member, at least part of which is disposed inside the second through hole, one end of the light guide member is close to the second light source, and the other end of the light guide member is close to the other opening of the second through hole.

3. The flash module according to claim 2, wherein: There are multiple light guide members, and the multiple light guide members are arranged at intervals along the circumference of the first through hole. Each light guide member corresponds to a second through hole. At least a portion of each light guide member is arranged in the corresponding second through hole and is used to transmit the illumination light emitted by the corresponding second light source.

4. The flash module according to claim 2 or 3, characterized in that: Each of the second light sources corresponds to one of the light guide members, and the light incident surface of the light guide member covers a range corresponding to at least 70° of the light output angle of the corresponding second light source.

5. The flash module according to any one of claims 2 to 4, characterized in that: The flash module further includes a substrate connected to the carrier, and the first light source and the second light source are respectively installed on the same side of the substrate.

6. The flash module according to claim 5, characterized in that: The substrate is electrically connected to the first light source and the second light source respectively, and is used to supply power to the first light source and the second light source.

7. The flash module according to any one of claims 1 to 6, characterized in that: The collimating mirror is a spherical mirror, which satisfies the relationship: 7.7mm≤F1≤14.3mm, 4.4mm≤R1≤5.9mm; wherein, F1 is the curvature radius of the front surface of the spherical mirror along the axial direction of the first through hole toward the first light source, and R1 is the curvature radius of the rear surface of the spherical mirror along the axial direction of the first through hole back toward the first light source.

8. The flash module according to any one of claims 1 to 6, characterized in that: The collimating mirror is an aspheric mirror, the front surface of the aspheric mirror is a spherical surface, the rear surface of the aspheric mirror is an aspheric surface, and the aspheric mirror satisfies the relationship: 13mm≤F2≤38mm, 1mm≤R2≤4mm, -1≤K1≤0; wherein, F2 is the curvature radius of the front surface of the aspheric mirror along the axial direction of the first through hole facing away from the first light source, R2 is the curvature radius of the rear surface of the aspheric mirror along the axial direction of the first through hole facing away from the first light source, and K1 is the König coefficient of the rear surface of the aspheric mirror.

9. The flash module according to claim 8, wherein: The aspherical mirror satisfies the relationship: 17mm≤F2≤20mm.

10. The flash module according to any one of claims 1 to 6, characterized in that: The collimating mirror is an aspheric mirror, and the front and rear surfaces of the aspheric mirror are both aspheric. The aspheric mirror satisfies the relationship: 1mm≤F3≤4mm, 1mm≤R2≤4mm, -1≤K1≤0, -1≤K2≤0; wherein, F3 is the curvature radius of the front surface of the aspheric mirror along the axial direction of the first through hole facing away from the first light source, R2 is the curvature radius of the rear surface of the aspheric mirror along the axial direction of the first through hole facing away from the first light source, K1 is the König coefficient of the rear surface of the aspheric mirror, and K2 is the König coefficient of the front surface of the aspheric mirror.

11. The flash module according to claim 10, wherein: The aspherical mirror satisfies the relationship: -0.84≤K2≤-0.

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12. The flash module according to claim 10 or 11, characterized in that: The aspherical mirror satisfies the relationship: 2.0mm≤F3≤2.7mm.

13. The flash module according to any one of claims 8 to 12, characterized in that: The aspherical mirror satisfies the relationship: -0.84≤K1≤-0.

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14. The flash module according to any one of claims 8 to 13, characterized in that: The aspheric mirror satisfies the relationship: 2.0 mm ≤ R2 ≤ 2.7 mm.

15. The flash module according to any one of claims 1 to 14, characterized in that: Along the axial direction of the first through hole, the thickness of the flash module is less than or equal to 10 mm.

16. The flash module according to claim 1, wherein: Along the axial direction of the first through hole, the first light source and the second light source are respectively arranged on opposite sides of the carrier, and the carrier further has an accommodating portion for accommodating at least a portion of the second light source.

17. The flash module according to any one of claims 1 to 16, characterized in that: The plurality of light-emitting portions in the first light source are arranged in an array along a first direction and a second direction; wherein the first direction, the second direction and the axial direction of the first through hole are perpendicular to each other.

18. The flash module according to any one of claims 1 to 17, characterized in that: Each of the light-emitting parts in the first light source is used to emit light independently.

19. The flash module according to any one of claims 1 to 18, characterized in that: The flash module further includes a controller, which is electrically connected to the first light source and the second light source, respectively, and is used to control the operating mode of the flash module; wherein the operating mode of the flash module includes: In the first mode, the controller is used to control the second light source to emit illumination light; In the second mode, the controller is used to control at least one of the light-emitting parts of the first light source to emit light, so that the light emitted by the first light source forms a light spot of a preset shape after being collimated by the collimating lens; In the third mode, the controller is configured to control the first light source and the second light source to emit light simultaneously.

20. An electronic device, characterized in that: The invention comprises a housing and a flash module according to any one of claims 1 to 19, wherein the flash module is arranged in the housing.

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