Electronic device

Abstract

The application provides an electronic device, which comprises a shell, a circuit board, a camera support and an ultraviolet imaging system. The circuit board is arranged in the shell. The camera support is arranged on the circuit board. The ultraviolet imaging system comprises an emitting module and a receiving module. The emitting module and the receiving module are independently encapsulated. The emitting module is used for emitting ultraviolet light. The receiving module is used for receiving the ultraviolet light reflected by a target object to form an image. The receiving module is arranged on the camera support. The emitting module is arranged on the circuit board. The receiving module comprises a lens assembly and a photosensitive element. The photosensitive element is located on the image side of the lens assembly. The lens assembly comprises a plurality of lenses. The object side and / or the image side of each lens is provided with an ultraviolet anti-reflection film. The ultraviolet emitting module and the receiving module are independently arranged in a separated mode, so that the ultraviolet imaging system can be flexibly arranged in the electronic device to meet the miniaturization requirement of the electronic device. The emitting module and the receiving module are matched to realize sun protection detection indoors and outdoors.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic products, and in particular to an electronic device. BACKGROUND

[0002] Ultraviolet light is a part of the electromagnetic spectrum that reaches the earth from the sun, and the wavelength range of ultraviolet light is lower than that of visible light. Ultraviolet light can be divided into three types: UVA (320-400 nm), UVB (280-320 nm), and UVC (200-280 nm). Ultraviolet light has been widely used in various fields such as industry, medicine, beauty, etc., such as ultraviolet insect trapping lamps, ultraviolet banknote testing lamps, ultraviolet disinfection lamps, Wood lamps, spectral hair follicle skin detectors, ultraviolet nail lamps, and ultraviolet cameras. Ultraviolet light has different properties of harm to the human body, among which UVA can cause skin relaxation, wrinkles, and microvascular appearance; UVB can cause skin redness, pain, and sunburn; and long-term exposure to UVC can cause skin cancer. Among them, UVA and UVB can penetrate the atmosphere, and UVC has the weakest penetration ability and cannot penetrate the atmosphere to reach the ground.

[0003] People usually use sunscreen products to protect their skin from direct damage from ultraviolet light. However, there are still some problems after using sunscreen, such as whether the sunscreen effect is sufficient, whether the sunscreen needs to be reapplied on the skin, and whether the sunscreen is completely removed. SUMMARY

[0004] Therefore, it is necessary to provide an electronic device to facilitate ultraviolet sun protection detection indoors and outdoors.

[0005] In a first aspect, an electronic device is provided, comprising: a housing; a circuit board arranged in the housing; a camera support arranged on the circuit board; an ultraviolet imaging system, the ultraviolet imaging system comprising a transmitting module and a receiving module, the transmitting module and the receiving module being independently encapsulated from each other, the transmitting module being configured to emit ultraviolet light, and the receiving module being configured to receive ultraviolet light reflected by a target object to form an image, the receiving module being arranged on the camera support, and the transmitting module being arranged on the circuit board, the receiving module comprising a lens assembly and a photosensitive element, the photosensitive element being located on an image side of the lens assembly, and the lens assembly comprising a plurality of lenses, each of the lenses being provided with an ultraviolet anti-reflection film on a subject side or an image side.

[0006] In the embodiment, the receiving module and the emitting module are independently encapsulated. The receiving module has a receiving axis of a receiving field of view, and the receiving axis is a central axis of the receiving field of view. The emitting module has an emitting axis of an emitting field of view, and the emitting axis is a central axis of the emitting field of view. Because the receiving module and the emitting module can be flexibly arranged independently of each other, the receiving module and the emitting module can be close to each other, the distance between the receiving axis and the emitting axis is small enough, and the coverage of the receiving field of view and the emitting field of view is high enough to meet the performance requirements of ultraviolet imaging and improve the quality of ultraviolet imaging.

[0007] Meanwhile, because the receiving module and the emitting module are independently encapsulated and have no direct mounting or direct connection relationship, the arrangement mode of the emitting module and the receiving module is more flexible, and various arrangement structures can be formed, so that the electronic device applying the camera assembly can have various appearance forms. In other words, the camera assembly can be applied to various electronic devices with different appearance forms, and the applicability of the camera assembly is strong. Because various electronic devices with different appearance forms can use the camera assembly, it is not necessary to repeatedly develop ultraviolet imaging systems with different forms due to different appearance forms, thereby reducing the development cost and manufacturing cost of the electronic device.

[0008] In addition, in a scene with weak ultraviolet light, the emitting module can be controlled to send ultraviolet light, and the receiving module can image the target object according to the ultraviolet light emitted by the target object, so that the electronic device can detect the sunscreen effect in different environments.

[0009] In a possible design of the first aspect, the emitting module has an emitting axis, the receiving module has a receiving axis, and the distance between the emitting axis and the receiving axis is L, where 30 mm > L > 0.5 mm. At this time, the receiving axis and the emitting axis are as close as possible to ensure that the coverage of the emitting field of view and the receiving field of view is high enough, so that the imaging performance of the ultraviolet imaging system is better.

[0010] In a possible design of the first aspect, the average transmittance of the lens assembly to light with a wavelength range of 360 nm-380 nm is Tavg1, and the average transmittance of the lens assembly to light with a wavelength range of 320 nm-360 nm is Tavg2, where Tavg1 ≥ 20% and Tavg2 ≥ 0.5%.

[0011] By arranging the antireflection layer, the transmittance of the ultraviolet light is improved, the quality of the ultraviolet light received by the photosensitive element is improved, and the imaging quality of the receiving module is improved. By arranging different average transmittances in different wave bands, the realizability of the antireflection film is ensured.

[0012] In a possible design of the first aspect, the lens assembly further includes a filter, the filter is located between the lens assembly and the photosensitive element, and the object side and / or the image side of the filter is provided with a filter film, the filter film is configured to increase the transmittance of ultraviolet light and reduce the transmittance of visible light and infrared light, so as to improve the imaging quality of the ultraviolet image.

[0013] In a possible design of the first aspect, the filter film is provided on the object side and the image side of the filter, the filter film on the object side of the filter has N1 layers, and the filter film on the image side of the filter has N2 layers, where 130≥N1≥110 and 90≥N2≥70, so as to increase the transmittance of ultraviolet light and reduce the transmittance of visible light and infrared light, thereby improving the imaging quality of the ultraviolet image.

[0014] In a possible design of the first aspect, the total thickness of the filter film of the filter is M, where 23μm≥M≥17μm, the total thickness is the sum of the thickness of the filter film on the object side of the filter and the thickness of the filter film on the image side of the filter, so as to increase the transmittance of ultraviolet light and reduce the transmittance of visible light and infrared light, thereby improving the imaging quality of the ultraviolet image.

[0015] In a possible design of the first aspect, the filter is quartz glass.

[0016] In a possible design of the first aspect, the emission module includes an ultraviolet light source and a visible light cut-off film, the ultraviolet light source is arranged on the circuit board, and the visible light cut-off film is arranged on the object side of the ultraviolet light source, the ultraviolet light source is configured to emit ultraviolet light, and the visible light cut-off film is configured to cut off visible light emitted by the ultraviolet light source, so as to reduce the transmittance of the visible light.

[0017] In a possible design of the first aspect, the existing ultraviolet light source emits ultraviolet light, and the ultraviolet light is mixed with other visible light, the visible light has a certain stimulation to the human eye, the visible light cut-off film is used to reduce the transmittance of the visible light, so as to reduce the stimulation of the visible light to the human eye.

[0018] In a possible design of the first aspect, the average transmittance of the visible light cut-off film to light with a wavelength range of 350nm-380nm is Tavg3, the minimum transmittance of the visible light cut-off film to light with a wavelength range of 360nm-370nm is Tmin, the average transmittance of the visible light cut-off film to light with a wavelength range of 385nm-395nm is Tavg4, the maximum transmittance of the visible light cut-off film to light with a wavelength range of 410nm-420nm is Tmax1, and the maximum transmittance of the visible light cut-off film to light with a wavelength range of 420nm-700nm is Tmax2.

[0019] Wherein, Tavg3 > 91%; Tmin > 90%; Tavg4 = 50%; Tmax1 ≤ 1.2%; Tmax2 ≤ 1%.

[0020] In a possible design of the first aspect, the emitting module further includes a light homogenizing element, which is arranged on the object side of the visible light cut-off film.

[0021] In a possible design of the first aspect, the electronic device further includes a camera module, which is arranged on the camera holder and is spaced apart from the receiving module.

[0022] In a possible design of the first aspect, the electronic device further includes a decoration element, which is located on the image side of the receiving module, and is provided with a plurality of mounting spaces, and the receiving module and the camera module are partially accommodated in the plurality of mounting spaces. Since the emitting module and the receiving module can be independently encapsulated, the positional relationship between the two can be flexibly arranged, and therefore the decoration element can be used to decorate the receiving module and the one or more camera modules, without wrapping the emitting module inside, so that the arrangement of the decoration element, the receiving module, the camera module and the emitting module is more diversified.

[0023] In a possible design of the first aspect, the emitting module is located on the circumferential side of the decoration element.

[0024] In a possible design of the first aspect, the emitting module is partially accommodated in the plurality of mounting spaces and located between the receiving module and the camera module.

[0025] In a possible design of the first aspect, the receiving module and the camera module are arranged in a first direction, and the receiving module and the emitting module are arranged in a second direction, which is the same as the first direction, or is perpendicular to the first direction. For example, the first direction and the second direction are both the width direction of the electronic device or the length direction of the electronic device. Alternatively, one of the first direction and the second direction is the width direction of the electronic device, and the other is the length direction of the electronic device.

[0026] In this embodiment, the receiving module, the camera module and the emitting module have a plurality of arrangement modes, so that the electronic device can be designed into a plurality of appearance forms, and has high flexibility.

[0027] In one possible design according to the first aspect, the ultraviolet imaging system further includes a driving chip fixed to the side of the circuit board opposite to the emitting module. The projection of the driving chip on the circuit board partially or completely overlaps with the projection of the emitting module on the circuit board. Because the projection of the driving chip on the circuit board partially or completely overlaps with the projection of the emitting module on the circuit board, the driving chip and the emitting module are fixed on opposite sides of the circuit board, which results in shorter traces and lower parasitic inductance between the driving chip and the emitting module. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an ultraviolet camera provided in this application.

[0029] Figure 2 This is a schematic diagram of an image taken by an existing camera.

[0030] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0031] Figure 4 yes Figure 3 The diagram shows the positional relationship between the ultraviolet imaging system and the frame of the electronic device in one embodiment.

[0032] Figure 5 yes Figure 3 A schematic diagram showing the positional relationship between the ultraviolet imaging system and the frame of the electronic device in another embodiment.

[0033] Figure 6 yes Figure 3 The diagram shows the positional relationship between the ultraviolet imaging system and the frame of the electronic device in another embodiment.

[0034] Figure 7 yes Figure 3 The diagram shows the positional relationship between the ultraviolet imaging system and the frame of the electronic device in another embodiment.

[0035] Figure 8 This is a partial structural diagram of an electronic device provided in an embodiment of this application.

[0036] Figure 9 for Figure 8 A partial cross-sectional view of the electronic device shown.

[0037] Figure 10 for Figure 8 A schematic diagram showing the arrangement of a partial structure of the electronic device.

[0038] Figure 11 This is a cross-sectional view of the receiving module provided in an embodiment of this application.

[0039] Figure 12 is a rear view of an electronic device provided by an embodiment of the present application Figure 1 .

[0040] Figure 13 is a rear view of an electronic device provided by an embodiment of the present application Figure 2 .

[0041] Figure 14 is a rear view of an electronic device provided by an embodiment of the present application Figure 3 .

[0042] Figure 15 is a rear view of an electronic device provided by an embodiment of the present application Figure 4 .

[0043] Figure 16 is a rear view of an electronic device provided by an embodiment of the present application Figure 5 .

[0044] Figure 17 is a rear view of an electronic device provided by an embodiment of the present application Figure 6 .

[0045] Figure 18 is a rear view of an electronic device provided by an embodiment of the present application Figure 7 .

[0046] Figure 19 is a rear view of an electronic device provided by an embodiment of the present application Figure 8 .

[0047] Main element symbol explanation

[0048] Electronic device 100

[0049] Housing 10

[0050] Display screen 20

[0051] Rear cover 101

[0052] Frame 102

[0053] Controller 30

[0054] Ultraviolet imaging system 40

[0055] Ultraviolet module 1

[0056] Circuit board 2

[0057] Avoidance space 21

[0058] Transmitting module 11

[0059] Receiving module 12

[0060] Connection end 121

[0061] Emission axis 111

[0062] Receiving axis 122

[0063] First camera module 5

[0064] Second camera module 6

[0065] Ultraviolet light source 113

[0066] Visible light cut-off film 115

[0067] Light homogenizing element 117

[0068] Flash 112

[0069] RGB sensor 114

[0070] Light filtering element 119

[0071] Visible light cut-off region 001

[0072] Light homogenizing region 002

[0073] Transparent region 003

[0074] Lens assembly 123

[0075] Photosensitive element 124

[0076] Lens 1231

[0077] Ultraviolet anti-reflection coating 1232

[0078] Filter 1233

[0079] Decorative element 7

[0080] Mounting space 71

[0081] Camera module 3

[0082] Drive chip 18

[0083] The following detailed description will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0084] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0085] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more. Directional terms such as "upper," "lower," "left," and "right" are defined relative to the indicated orientation of the components in the accompanying drawings. It should be understood that these directional terms are relative concepts used for relative description and clarification, and they may change accordingly depending on the orientation of the components in the accompanying drawings.

[0086] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly, for example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0087] In the following detailed description of the embodiments in conjunction with the schematic diagrams, for ease of explanation, the diagrams showing the partial structure of the device will be enlarged locally without adhering to the usual scale, and the schematic diagrams are merely examples and should not limit the scope of protection of this application.

[0088] Ultraviolet (UV) light causes various types of damage to the human body, and people usually improve the effectiveness of sun protection by applying sunscreen. To test the effectiveness of sun protection, such as whether the sunscreen is applied evenly, people typically use a UV camera to photograph the human body. The UV camera outputs a black and white image, which can be used to determine the effectiveness of sun protection on the photographed person.

[0089] Figure 1 An existing ultraviolet camera includes a receiving module that can receive ultraviolet light reflected from the natural environment by an external object and form an image based on the ultraviolet light to create an ultraviolet image.

[0090] in Figure 2 (a) to Figure 2 (c) is a schematic diagram of an image captured by an existing camera, wherein, Figure 2 (a) is an image taken by a visible light camera. Figure 2 (b) and Figure 2 (c) is an image taken by an ultraviolet camera. Since visible light cameras cannot capture ultraviolet light images, they cannot be used to obtain images from the ultraviolet light. Figure 2 (a) Obtaining the sun protection effect from the human body. From Figure 2 The UV image in (b) shows that the user was directly exposed to UV light without applying sunscreen; fromFigure 2 As can be seen from (c), the face of the user is smeared with sunscreen, but the forehead part is not smeared. Therefore, the ultraviolet image containing the target human body can be collected by the ultraviolet camera, and the sunscreen effect of the user can be detected according to the ultraviolet image.

[0091] wherein, Figure 2 (a) to Figure 2 (c) of the related art are all for detecting the sunscreen effect of the user outdoors, however, the user mostly smears sunscreen indoors, and the existing ultraviolet camera cannot realize the sunscreen detection indoors because the ultraviolet camera does not have an ultraviolet light emitting module and the intensity of the ultraviolet light indoors is weak.

[0092] To solve the above problems, please refer to Figure 3 Embodiments of the present application provide an electronic device 100. The electronic device 100 can be a mobile phone, a tablet computer, an electronic reader, a notebook computer, a vehicle-mounted device, or a wearable device, etc. Embodiments of the present application take the electronic device 100 as a mobile phone for example.

[0093] The electronic device 100 includes a housing 10 and a display screen 20. The housing 10 can include a back cover 101 and a frame 102. The frame 102 is connected to the periphery of the back cover 101. The frame 102 can be integrally formed with the back cover 101, or can be assembled to form an integrated structure. The display screen 20 is mounted on the side of the frame 102 away from the back cover 101. The display screen 20 integrates display and touch functions. The display screen 20 includes a display panel and a front cover plate covering the display panel. The display panel can be a liquid crystal display panel (LCD), an organic light-emitting diode (OLED) display panel, or a micro light-emitting diode (micro LED) display panel. The front cover plate can be a cover glass (CG).

[0094] The electronic device 100 further includes a controller 30 and an ultraviolet imaging system 40. The controller 30 is housed inside the housing 10. The ultraviolet imaging system 40 is mounted on the housing 10. The ultraviolet imaging system 40 is entirely housed inside the housing 10, or mostly housed inside the housing 10. The ultraviolet imaging system 40 is used to collect images to form corresponding image signals. The controller 30 is electrically connected to the ultraviolet imaging system 40, and the controller 30 is used to process the image signals of the ultraviolet imaging system 40. The controller 30 can be a main chip on the mainboard of the electronic device 100.

[0095] In the use environment of the electronic device 100, the front cover plate is defined to face the front of the electronic device 100, and the rear cover 101 is defined to face the rear of the electronic device 100. In the present embodiment, the ultraviolet imaging system 40 can capture an image of the rear of the electronic device 100. In other embodiments, the ultraviolet imaging system 40 can capture an image of the front of the electronic device 100.

[0096] Please refer to Figures 4 to 7 , Figure 4 is Figure 3 the schematic diagram of the position relationship between the ultraviolet imaging system 40 and the frame 102 of the electronic device 100 in an embodiment; Figure 5 is Figure 3 the schematic diagram of the position relationship between the ultraviolet imaging system 40 and the frame 102 of the electronic device 100 in another embodiment; Figure 6 is Figure 3 the schematic diagram of the position relationship between the ultraviolet imaging system 40 and the frame 102 of the electronic device 100 in still another embodiment; Figure 7 is Figure 3 the schematic diagram of the position relationship between the ultraviolet imaging system 40 and the frame 102 of the electronic device 100 in still another embodiment.

[0097] The ultraviolet imaging system 40 comprises an ultraviolet module 1, and the electronic device 100 further comprises a circuit board 2. The circuit board 2 is provided with a clearance space 21. The circuit board 2 can be a main board of the electronic device 100, or a part of the main board of the electronic device 100. The circuit board 2 can be a rigid printed circuit board, or a rigid-flex printed circuit board. The ultraviolet module 1 comprises an emission module 11 and a receiving module 12. The emission module 11 is configured to emit ultraviolet light. The receiving module 12 is configured to capture at least part of the ultraviolet light in the natural environment reflected by external objects and / or the ultraviolet light emitted by the emission module 11, and form an ultraviolet image according to the ultraviolet light.

[0098] The receiving module 12 can be a camera module. The receiving module 12 and the emission module 11 are independently encapsulated. The receiving module 12 is located in the clearance space 21, and a connecting end 121 of the receiving module 12 is fixed to the circuit board 2. The receiving module 12 is electrically connected to the circuit board 2 through the connecting end 121. The emission module 11 is located at the periphery of the receiving module 12 and is fixed to the circuit board 2.

[0099] In the present embodiment, the emission module 11 is mounted on the circuit board 2 by surface mounting technology. Of course, in other embodiments, the emission module 11 can be fixed to the circuit board 2 by screws, welding, or the like.

[0100] In other embodiments, the electronic device 100 further comprises a camera support (not shown in the figure), which is arranged on the circuit board 2, and the receiving module 12 is fixed to the camera support.

[0101] The receiving module 12, the emitting module 11 and the controller 30 are electrically connected to the circuit board 2, so that signal transmission can be realized through the circuit on the circuit board 2.

[0102] The emitting module 11 has multiple working modes, such as a constant-on mode and a non-illumination mode. When the emitting module 11 is in the constant-on mode, the emitting module 11 continuously emits ultraviolet light. When the emitting module 11 is in the non-illumination mode, the emitting module 11 stops emitting ultraviolet light. The working mode of the emitting module 11 can be stored in the controller 30, and the controller 30 sends a control instruction to the emitting module 11 through the circuit board 2 to adjust the working mode of the emitting module 11.

[0103] For example, the user touches the display screen 20 of the electronic device 100 to input a control instruction to an upper-layer application to start different sunscreen detection modes. The sunscreen detection modes can include outdoor sunscreen detection and indoor sunscreen detection. Of course, corresponding sunscreen detection modes can also be set according to actual needs. When the sunscreen detection mode is outdoor sunscreen detection, the controller 30 sends a control instruction to the receiving module 12 to make the receiving module 12 collect ultraviolet light in the natural environment that is reflected by at least part of external objects, and form an ultraviolet image according to the ultraviolet light. The emitting module 11 is in the non-illumination mode by default.

[0104] If the receiving module 12 collects ultraviolet light according to the control instruction and determines that the intensity of the ultraviolet light is less than a preset value, so that the receiving module 12 cannot form a clear ultraviolet image, the receiving module 12 sends a feedback instruction to the controller 30, and the controller 30 receives the feedback instruction and sends a control message to the emitting module 11 according to the feedback instruction to control the emitting module 11 to switch to the constant-on mode. The emitting module 11 sends ultraviolet light to the target area, and the receiving module 12 collects the ultraviolet light emitted by the emitting module 11 and forms an ultraviolet image according to the ultraviolet light.

[0105] The preset value can be set according to the actual imaging requirement of the receiving module 12.

[0106] Optionally, the receiving module 12 includes an ultraviolet sensor (not shown in the figure), which is used to sense the intensity of ultraviolet light in the target area.

[0107] In this embodiment, the receiving module 12 and the emitting module 11 are independently encapsulated from each other. The receiving module 12 has a receiving field of view (not shown in the figure) and a receiving axis 122, and the receiving axis 122 is the central axis of the receiving field of view. The emitting module 11 has an emitting field of view (not shown in the figure) and an emitting axis 111, and the emitting axis 111 is the central axis of the emitting field of view.

[0108] Optionally, the distance between the receiving axis 122 of the receiving module 12 and the emitting axis 111 of the emitting module 11 is in the range of 0.5 millimeter (mm) to 30 mm. The receiving axis 122 and the emitting axis 111 are as close as possible to ensure that the coverage of the emitting field of view and the receiving field of view is high, so that the ultraviolet imaging system 40 has good imaging performance.

[0109] Please refer to Figure 8 , Figure 8 A partial structure schematic diagram of an electronic device 100 is provided in an embodiment of the present application. The electronic device 100 includes a housing 10 and a first camera module 5, a second camera module 6, and an ultraviolet module 1 mounted on the housing 10. The ultraviolet module 1 includes an emitting module 11 and a receiving module 12.

[0110] In the embodiment, the first camera module 5, the second camera module 6, the emitting module 11, and the receiving module 12 are arranged in a square shape. Of course, in other embodiments, the arrangement of the first camera module 5, the second camera module 6, the emitting module 11, and the receiving module 12 can be adjusted according to actual needs, for example, they can also be arranged in a strip shape.

[0111] In the embodiment, the first camera module 5 is a color camera (also known as an RGB camera), and the second camera module 6 is a wide-angle camera. Of course, the first camera module 5 and the second camera module 6 can also be monochrome cameras, wide-angle cameras, or zoom cameras. The present application does not limit the types of the first camera module 5 and the second camera module 6.

[0112] It can be understood that in other embodiments, the number of camera modules of the electronic device 100 can be 3, 4, or more than 4.

[0113] Figure 9 A partial structure schematic diagram of an electronic device 100 is provided in an embodiment of the present application. The electronic device 100 includes a housing 10 and a first camera module 5, a second camera module 6, and an ultraviolet module 1 mounted on the housing 10. The ultraviolet module 1 includes an emitting module 11 and a receiving module 12. Figure 8 A partial cross-sectional view of the electronic device 100 is shown in the embodiment of the present application. Please refer to Figure 9 The ultraviolet module 1 includes an emitting module 11 and a receiving module 12, and the emitting module 11 includes an ultraviolet light source 113.

[0114] In the embodiment, the ultraviolet light source 113 is an ultraviolet LED lamp, and the center wavelength of the ultraviolet light emitted by the ultraviolet LED lamp is 360 nm-370 nm.

[0115] For safety considerations, it is necessary to limit the luminous power of the ultraviolet LED lamp within a certain power, for example, within 55 mW, to ensure that it will not cause harm to the human body within the normal use distance (30 cm-40 cm).

[0116] Optionally, the emitting module 11 further comprises a visible light cutoff film 115, which is arranged on the object side of the ultraviolet light source 113, and is used for filtering visible light and transmitting ultraviolet light, so as to prevent the light emitted by the ultraviolet light source 113 from stimulating the eyes of the target person when irradiating the face of the target person.

[0117] In an embodiment, the average transmittance of the visible light cutoff film 115 to light with a wavelength range of 350 nm-380 nm is Tavg3, the minimum transmittance of the visible light cutoff film 115 to light with a wavelength range of 360 nm-370 nm is Tmin, the average transmittance of the visible light cutoff film 115 to light with a wavelength range of 385 nm-395 nm is Tavg4, the maximum transmittance of the visible light cutoff film 115 to light with a wavelength range of 410 nm-420 nm is Tmax1, and the maximum transmittance of the visible light cutoff film 115 to light with a wavelength range of 420 nm-700 nm is Tmax2.

[0118] Wherein, Tavg3>91%; Tmin>90%; Tavg4=50%; Tmax1≤1.2%; Tmax2≤1%. By setting the above parameters of the visible light cutoff film 115, it is ensured that the visible light in the light emitted by the ultraviolet light source 113 is intercepted by the visible light cutoff film 115, and the ultraviolet light in the light emitted by the ultraviolet light source 113 can pass through the visible light cutoff film 115.

[0119] Optionally, the emitting module 11 further comprises a light homogenizing member 117, which is arranged on the side of the visible light cutoff film 115 away from the ultraviolet light source 113, and is used for changing the refraction angle of the light emitted by the ultraviolet light source 113 to obtain a linear light source with uniform segments, so as to ensure the uniformity of the light spot emitted by the ultraviolet light source 113.

[0120] In the embodiment, the light homogenizing member 117 is substantially in the form of a lampshade, and the structure of the lampshade is a Fresnel pattern, so that the uniformity of the four corners of the 0.7Field of the ultraviolet light source 113 can reach more than 75% of the central field of view. Of course, in other embodiments, the light homogenizing member 117 can also be a light homogenizing plate or a light homogenizing sheet, and the shape of the light homogenizing member 117 is not limited in the application, as long as the light homogenizing member 117 can realize the homogenization of ultraviolet light.

[0121] Please refer to Figure 10The electronic device 100 further comprises a flash 112 and an RGB sensor 114, and the ultraviolet light source 113, the flash 112 and the RGB sensor 114 are arranged in a spaced manner, and the emission module 11 further comprises a light filter 119, the light filter 119 has a visible light cutoff area 001, a uniform light area 002 and a transparent area 003, wherein the visible light cutoff area 001 is provided with a visible light cutoff film 115 and is arranged corresponding to the ultraviolet light source 113, and the uniform light area 002 is arranged corresponding to the RGB sensor 114, wherein the uniform light area 002 can be provided with a uniform light film and the like, for performing uniform light processing on the light input to the RGB sensor 114, so as to optimize the color temperature of the light entering the RGB sensor 114. The transparent area 003 is arranged corresponding to the flash 112, and the light emitted by the flash 112 is not processed.

[0122] Figure 11 A cross-sectional view of the receiving module 12 provided in the embodiment of the present application is shown in FIG. 6, the receiving module 12 comprises a lens assembly 123 and a photosensitive element 124, and the photosensitive element 124 is located on the image side of the lens assembly 123.

[0123] The photosensitive element 124 can be a complementary metal oxide semiconductor (CMOS, Complementary Metal Oxide Semiconductor) image sensor or a charge-coupled device (CCD, Charge-coupled Device).

[0124] In the embodiment, the lens assembly 123 comprises six lenses 1231, and the object side and the image side of the six lenses 1231 are provided with ultraviolet anti-reflection coatings 1232.

[0125] In other embodiments, the number of lenses 1231 can be five or seven; of course, it can also be greater than seven, for example, eight or nine, or it can also be less than five, for example, four.

[0126] In the embodiment, the material of the lenses 1231 is a conventional resin.

[0127] It can be understood that in other embodiments, as long as one of the object side or the image side of each lens is provided with the ultraviolet anti-reflection coating 1232. Of course, the ultraviolet anti-reflection coating 1232 can also be arranged on one side (the object side or the image side) or both sides (the object side and the image side) of one or more lenses 1231 in the lens assembly 123.

[0128] The lens assembly 123 has an average transmittance Tavg1 for light with a wavelength range of 360nm-380nm and an average transmittance Tavg2 for light with a wavelength range of 320nm-360nm, and the lens assembly 123 satisfies:

[0129] Tavg1≥20%, Tavg2≥0.5%.

[0130] By limiting the average transmittance of the wavelength interval, it is ensured that the lens assembly 123 can receive sufficient ultraviolet light to improve the imaging quality of the ultraviolet image.

[0131] In some embodiments, the lens assembly 123 further comprises a filter 1233 located on the image side of the six lenses 1231, and the filter 1233 is used to filter out light of a specific wavelength band, such as visible light.

[0132] In this embodiment, the material of the filter 1233 is quartz glass, and the transmittance of the filter 1233 of the quartz glass to ultraviolet light is higher than that of the filter of blue glass.

[0133] The object side and the image side of the filter 1233 are provided with a plurality of filtering films, which are used to improve the transmittance of ultraviolet light of the filter and reduce the transmittance of visible light and infrared light.

[0134] Among them, the plurality of filtering films can include an ultraviolet antireflection film, a visible light cutoff film and an infrared light cutoff film, wherein the ultraviolet antireflection film is used to improve the transmittance of ultraviolet light of the filter 1233, the visible light cutoff film is used to reduce the transmittance of visible light of the filter 1233, and the infrared light cutoff film is used to reduce the transmittance of infrared light of the filter 1233. The plurality of filtering films are formed by stacking the ultraviolet antireflection film, the visible light cutoff film and the infrared light cutoff film.

[0135] It can be understood that in other embodiments, the plurality of filtering films can be provided only on the object side or the image side of the filter 1233, as long as the lens assembly 123 provided with the filtering film can meet the preset light transmittance.

[0136] Further, the number of layers of the filtering film on the object side of the filter 1233 is N1, and the number of layers of the filtering film on the image side is N2, wherein 130≥N1≥110, 90≥N2≥70. By limiting the number of layers of the filtering film on the object side and the image side of the filter, the transmittance of ultraviolet light is improved and the transmittance of visible light and infrared light is reduced.

[0137] Further, the total thickness of the filtering film of the filter 1233 is M, wherein 23μm≥M≥17μm, wherein the total thickness includes the sum of the thickness of the filtering film on the object side and the thickness of the filtering film on the image side.

[0138] Please refer again to Figure 8The electronic device 100 further comprises a decoration piece 7. The decoration piece 7 is mounted on the rear cover 101 of the housing 10, and the decoration piece 7 has a plurality of mounting spaces 71. The plurality of mounting spaces 71 are respectively arranged corresponding to the first camera module 5, the second camera module 6, the transmitting module 11 and the receiving module 12. The receiving module 12 and the camera module 3 are partially accommodated in the plurality of mounting spaces 71.

[0139] In the embodiment, since the transmitting module 11 and the receiving module 12 can be independently encapsulated from each other, the positional relationship between the transmitting module 11 and the receiving module 12 can be flexibly arranged. Therefore, the decoration piece 7 can be used to decorate the receiving module 12 and one or more camera modules, without surrounding the transmitting module 11, so that the arrangement mode of the decoration piece 7, the receiving module 12, the one or more camera modules and the transmitting module 11 is more diversified.

[0140] Please refer to Figures 12 to 19 , respectively Figure 6 corresponding rear views of the plurality of embodiments of the electronic device 100.

[0141] Figures 12 to 19 In the embodiment, the electronic device 100 comprises one camera module 3, and the camera module 3 can be arranged side by side with the receiving module 12. Optionally, the receiving module 12 and the camera module 3 are arranged in a first direction. The receiving module 12 and the transmitting module 11 are arranged in a second direction. The second direction is the same as the first direction. For example, the first direction and the second direction are both the width direction X of the electronic device 100 or the length direction Y of the electronic device 100. As shown in Figure 14 、 Figure 15 and Figure 18 , the first direction is the width direction X of the electronic device 100, and the second direction is also the width direction X of the electronic device 100. In other embodiments, the second direction can be perpendicular to the first direction. For example, one of the first direction and the second direction is the width direction X of the electronic device 100, and the other is the length direction Y of the electronic device 100.

[0142] In other embodiments, the electronic device 100 comprises a plurality of camera modules 3, and the plurality of camera modules 3 and the receiving module 12 can also have other arrangement modes, such as matrix arrangement, triangular arrangement, quadrangular arrangement or circular arrangement, etc.

[0143] As shown in Figure 12As shown in FIG. 1, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the length direction Y of the electronic device 100. That is, the mounting space 71 and the decoration piece 7 are arranged longitudinally. The camera module 3 and the receiving module 12 are partially accommodated in the mounting space 71, and correspondingly, the camera module 3 and the receiving module 12 are arranged in the length direction Y of the electronic device 100. The receiving module 12 is located at the bottom side of the camera module 3. The emitting module 11 is located at the right side of the receiving module 12. In the present application, the relative position of the emitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the emitting axis) of the aligned field of view angle.

[0144] As shown in FIG. 2, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the length direction Y of the electronic device 100. That is, the mounting space 71 and the decoration piece 7 are arranged longitudinally. The camera module 3 and the receiving module 12 are partially accommodated in the mounting space 71, and correspondingly, the camera module 3 and the receiving module 12 are arranged in the length direction Y of the electronic device 100. The receiving module 12 is located at the bottom side of the camera module 3. The emitting module 11 is located at the left side of the receiving module 12. In the present application, the relative position of the emitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the emitting axis) of the aligned field of view angle. Figure 13 As shown in FIG. 3, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the length direction Y of the electronic device 100. That is, the mounting space 71 and the decoration piece 7 are arranged longitudinally. The camera module 3 and the receiving module 12 are partially accommodated in the mounting space 71, and correspondingly, the camera module 3 and the receiving module 12 are arranged in the length direction Y of the electronic device 100. The receiving module 12 is located at the bottom side of the camera module 3. The emitting module 11 is located at the top side of the receiving module 12 and the camera module 3. In the present application, the relative position of the emitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the emitting axis) of the aligned field of view angle.

[0145] Figure 14 As shown in FIG. 4, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the length direction Y of the electronic device 100. That is, the mounting space 71 and the decoration piece 7 are arranged longitudinally. The camera module 3 and the receiving module 12 are partially accommodated in the mounting space 71, and correspondingly, the camera module 3 and the receiving module 12 are arranged in the length direction Y of the electronic device 100. The receiving module 12 is located at the bottom side of the camera module 3. The emitting module 11 is located at the top side of the receiving module 12 and the camera module 3. In the present application, the relative position of the emitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the emitting axis) of the aligned field of view angle.

[0146] As shown in FIG. 5, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the length direction Y of the electronic device 100. That is, the mounting space 71 and the decoration piece 7 are arranged longitudinally. The camera module 3 and the receiving module 12 are partially accommodated in the mounting space 71, and correspondingly, the camera module 3 and the receiving module 12 are arranged in the length direction Y of the electronic device 100. The receiving module 12 is located at the bottom side of the camera module 3. The emitting module 11 is located at the top side of the receiving module 12 and the camera module 3. In the present application, the relative position of the emitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the emitting axis) of the aligned field of view angle. Figure 15 ​As shown in FIG. 1, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the length direction Y of the electronic device 100. That is, the installation space 71 and the decoration piece 7 are arranged longitudinally. The camera module 3 and the receiving module 12 are partially accommodated in the installation space 71, and correspondingly, the camera module 3 and the receiving module 12 are arranged in the length direction Y of the electronic device 100. The receiving module 12 is located at the bottom side of the camera module 3. The transmitting module 11 is located at the bottom side of the receiving module 12 and the camera module 3. In the present application, the relative position of the transmitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the transmitting axis) of the aligned field of view angle.

[0147] As shown in FIG. 2, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the width direction X of the electronic device 100. That is, the installation space 71 and the decoration piece 7 are arranged transversely. The camera module 3 and the receiving module 12 are partially accommodated in the installation space 71, and correspondingly, the camera module and the receiving module 12 are arranged in the width direction X of the electronic device 100. The receiving module 12 is located at the left side of the camera module 3. The transmitting module 11 is located at the left side of the receiving module 12. In the present application, the relative position of the transmitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the transmitting axis) of the aligned field of view angle. Figure 16 As shown in FIG. 3, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the width direction X of the electronic device 100. That is, the installation space 71 and the decoration piece 7 are arranged transversely. The camera module 3 and the receiving module 12 are partially accommodated in the installation space 71, and correspondingly, the camera module and the receiving module 12 are arranged in the width direction X of the electronic device 100. The receiving module 12 is located at the right side of the camera module 3. The transmitting module 11 is located at the right side of the receiving module 12. In the present application, the relative position of the transmitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the transmitting axis) of the aligned field of view angle.

[0148] As shown in FIG. 4, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the width direction X of the electronic device 100. That is, the installation space 71 and the decoration piece 7 are arranged transversely. The camera module 3 and the receiving module 12 are partially accommodated in the installation space 71, and correspondingly, the camera module and the receiving module 12 are arranged in the width direction X of the electronic device 100. The receiving module 12 is located at the right side of the camera module 3. The transmitting module 11 is located at the right side of the receiving module 12. In the present application, the relative position of the transmitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the transmitting axis) of the aligned field of view angle. Figure 17 As shown in FIG. 4, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the width direction X of the electronic device 100. That is, the installation space 71 and the decoration piece 7 are arranged transversely. The camera module 3 and the receiving module 12 are partially accommodated in the installation space 71, and correspondingly, the camera module and the receiving module 12 are arranged in the width direction X of the electronic device 100. The receiving module 12 is located at the right side of the camera module 3. The transmitting module 11 is located at the right side of the receiving module 12. In the present application, the relative position of the transmitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the transmitting axis) of the aligned field of view angle.

[0149] As shown in FIG. 4, the electronic device 100 includes one camera module 3, and the decoration piece 7 extends in the width direction X of the electronic device 100. That is, the installation space 71 and the decoration piece 7 are arranged transversely. The camera module 3 and the receiving module 12 are partially accommodated in the installation space 71, and correspondingly, the camera module and the receiving module 12 are arranged in the width direction X of the electronic device 100. The receiving module 12 is located at the right side of the camera module 3. The transmitting module 11 is located at the right side of the receiving module 12. In the present application, the relative position of the transmitting module 11, the receiving module 12 and the camera module 3 is defined as the relative position of the central axis (for example, the receiving axis or the transmitting axis) of the aligned field of view angle. Figure 18As shown, the electronic device 100 includes a camera module 3, and a decorative element 7 extends in the width direction Y of the electronic device 100. That is, the mounting space 71 and the decorative element 7 are arranged longitudinally. The camera module 3, the transmitting module 11, and the receiving module 12 are partially housed in the mounting space 71, and correspondingly, the camera module 3, the transmitting module 11, and the receiving module 12 are arranged in the length direction Y of the electronic device 100. The transmitting module 11 is located between the camera module 3 and the receiving module 12, with the receiving module 12 located at the bottom of the transmitting module 11 and the camera module 3 located at the top of the transmitting module 11. In this application, the relative positions of the transmitting module 11, the receiving module 12, and the camera module 3 are defined as the relative positions of the central axes (e.g., the receiving axis or the transmitting axis) aligned with the field of view. In other embodiments, the receiving module 12 is located at the top of the transmitting module 11, and the camera module 3 is located at the bottom of the transmitting module 11.

[0150] like Figure 19 As shown, the electronic device 100 includes a camera module 3, and a decorative element 7 extends in the width direction X of the electronic device 100. That is, the mounting space 71 and the decorative element 7 are arranged laterally. The camera module 3, the transmitting module 11, and the receiving module 12 are partially housed in the mounting space 71, correspondingly arranged in the width direction X of the electronic device 100. The transmitting module 11 is located between the camera module 3 and the receiving module 12, with the receiving module 12 located to the right of the transmitting module 11 and the camera module 3 located to the left of the transmitting module 11. In this application, the relative positions of the transmitting module 11, the receiving module 12, and the camera module 3 are defined as their relative positions aligned with the central axis of the field of view (e.g., the receiving axis or the transmitting axis). In other embodiments, the receiving module 12 is located to the left of the transmitting module 11, and the camera module 3 is located to the right of the transmitting module 11.

[0151] In this embodiment, since the decorative element 7 is partially exposed on the outside of the electronic device 100, and the appearance of the receiving module 12 decorated by the decorative element 7 is similar to or even identical to that of the camera module 3, the decorative element 7, the receiving module 12, and the camera module 3 can be roughly symmetrically distributed on the appearance of the electronic device 100, thereby making the appearance of the electronic device 100 highly coordinated and more aesthetically pleasing. The decorative element 7 can also avoid problems such as excessive size due to too many surrounding components, which could lead to reduced structural strength and easy deformation.

[0152] in, Figures 12 to 19 In the electronic device 100, the number of camera modules 3 is not limited to one, but can be two, three or even more than three. The camera module 3 can be a color camera (also known as an RGB camera), a monochrome camera, a wide-angle camera or a zoom camera, etc.

[0153] Please participate again. Figure 8The ultraviolet module 1 further comprises a driving chip 18. The driving chip 18 is fixed on the side of the circuit board 2 away from the emitting module 11. The projection of the driving chip 18 on the circuit board 2 partially or entirely overlaps the projection of the emitting module 11 on the circuit board 2. The projection of the driving chip 18 on the circuit board 2 entirely overlaps the projection of the emitting module 11 on the circuit board 2 means that one of them falls completely within the range of the other.

[0154] In the embodiment, since the projection of the driving chip 18 on the circuit board 2 partially or entirely overlaps the projection of the emitting module 11 on the circuit board 2, the driving chip 18 and the emitting module 11 are fixed on the opposite sides of the circuit board 2 approximately back to back, so that the wiring between the driving chip 18 and the emitting module 11 is shorter and the parasitic inductance is smaller.

[0155] In the application, the controller 30 comprises a processing chip and a storage chip. The storage chip stores a plurality of instructions executable by the processor. The plurality of instructions correspond to a plurality of working modes of the emitting module 11.

[0156] When the processor receives the start signal, the processor calls the corresponding instruction in the storage according to the start signal and writes the instruction into the register of the photosensitive chip. The photosensitive chip sends a corresponding emission signal to the driving chip 18 according to the instruction, and the driving chip 18 drives the emitting module 11 to emit a corresponding ultraviolet light according to the emission signal. At this time, the emitting module 11 is in a constant-on mode. For example, the start signal corresponds to the instruction that the intensity of the ultraviolet light sensed by the receiving module 12 on the target object is less than the preset value, the processor calls the first instruction and writes it into the register of the photosensitive chip. After the register switch is opened, a corresponding emission signal is sent to the driving chip 18, and the driving chip 18 drives the emitting module 11 to emit an ultraviolet light signal corresponding to the intensity of the ultraviolet light according to the emission signal.

[0157] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any change or replacement within the technical scope disclosed in the present application should be covered within the disclosure scope of the present application.

Claims

1. An electronic device, comprising: The application relates to a camera with an ultraviolet imaging system. The camera comprises a housing, a circuit board arranged in the housing, a camera support arranged on the circuit board, and an ultraviolet imaging system. The ultraviolet imaging system comprises an emitting module and a receiving module, the emitting module and the receiving module are independently encapsulated, the emitting module is used for emitting ultraviolet light, the receiving module is used for receiving ultraviolet light reflected by a target object to form an image, the emitting module is arranged on the circuit board, the receiving module comprises a lens assembly and a photosensitive element arranged on the camera support, the photosensitive element is located on an image side of the lens assembly, and the lens assembly comprises a plurality of lenses, the object side and / or the image side of each lens is provided with an ultraviolet antireflection film. When the intensity of the ultraviolet light collected by the receiving module is less than a preset value, the emitting module emits the ultraviolet light. The emitting module has an emitting axis, the receiving module has a receiving axis, and the distance between the emitting axis and the receiving axis is L, wherein 30mm>L>0.5mm. The average transmittance of the lens assembly to light with a wavelength range of 360nm-380nm is Tavg1, and the average transmittance of the lens assembly to light with a wavelength range of 320nm-360nm is Tavg2, wherein Tavg1>=20%, and Tavg2>=0.5%.

2. The electronic device of claim 1, wherein, The lens assembly further comprises a filter, the filter is located between the lens assembly and the photosensitive element, the object side and / or the image side of the filter is provided with a plurality of filter films, and the plurality of filter films comprise an ultraviolet antireflection film, a visible light cutoff film and an infrared light cutoff film which are stacked.

3. The electronic device of claim 1 or 2, wherein, The object side and the image side of the filter are both provided with a plurality of filter films, the number of filter films on the object side of the filter is N1, the number of filter films on the image side of the filter is N2, wherein 130>=N1>=110, and 90>=N2>=70.

4. The electronic device of claim 3, wherein, The total thickness of the filter films of the filter is M, wherein 23um>=M>=17um, and the total thickness is the sum of the thickness of the filter films on the object side of the filter and the thickness of the filter films on the image side of the filter.

5. The electronic device of claim 4, wherein, The filter is quartz glass.

6. The electronic device of claim 5, wherein, The emitting module comprises an ultraviolet light source and a visible light cutoff film, the ultraviolet light source is arranged on the circuit board, the visible light cutoff film is arranged on the object side of the ultraviolet light source, the ultraviolet light source is used for emitting ultraviolet light, and the visible light cutoff film is used for cutting off visible light emitted by the ultraviolet light source to reduce the transmittance of visible light.

7. The electronic device of claim 5 or 6, wherein, The average transmittance of the visible light cutoff film to light with a wavelength range of 350nm-380nm is Tavg3, the minimum transmittance of the visible light cutoff film to light with a wavelength range of 360nm-370nm is Tmin, the average transmittance of the visible light cutoff film to light with a wavelength range of 385nm-395nm is Tavg4, the maximum transmittance of the visible light cutoff film to light with a wavelength range of 410nm-420nm is Tmax1, and the maximum transmittance of the visible light cutoff film to light with a wavelength range of 420nm-700nm is Tmax2.

8. The electronic device of claim 1, wherein, ​ 9. The electronic device of claim 8, wherein, ​ Wherein, Tavg3>91%; Tmin>90%; Tavg4=50%; Tmax1≤1.2%; Tmax2≤1%.

10. The electronic device of claim 9, wherein, The emitting module further comprises a light homogenizing element disposed on the object side of the visible light cut-off film.

11. The electronic device of claim 9, wherein, The electronic device further comprises a camera module disposed on the camera holder and spaced apart from the receiving module.

12. The electronic device of claim 11, wherein, The electronic device further comprises a decorative element located on the image side of the receiving module, the decorative element being provided with a plurality of mounting spaces, and the receiving module and the camera module being partially accommodated in the mounting spaces.

13. The electronic device of claim 12, wherein, The emitting module is located on the peripheral side of the decorative element.

14. The electronic device of claim 12, wherein, The emitting module is partially accommodated in the mounting spaces and located between the receiving module and the camera module.

15. The electronic device of claim 13, wherein, The receiving module and the camera module are arranged in a first direction, and the receiving module and the emitting module are arranged in a second direction, which is the same as the first direction or perpendicular to the first direction.

16. The electronic device of claim 13, wherein, The ultraviolet imaging system further comprises a driving chip fixed to the side of the circuit board away from the emitting module, and the projection of the driving chip on the circuit board partially or entirely overlaps the projection of the emitting module on the circuit board.

Images