Camera module and electronic equipment

Abstract

The invention relates to a camera module and electronic equipment. The camera module comprises a first diaphragm; a first conductive element opposite the first diaphragm; a second diaphragm; the second conducting element is opposite to the second diaphragm; the imaging assembly comprises a lens and an image sensor; a conduction assembly; the camera module can selectively open any one of the first diaphragm and the second diaphragm, the first conduction element can conduct at least part of first wave band light to the conduction assembly and filter out at least part of second wave band light, and the second conduction element can conduct at least part of second wave band light to the conduction assembly and filter out at least part of second wave band light. Filtering out at least part of the first wave band light; the conduction assembly can conduct at least part of light from the first conduction element and the second conduction element to the imaging assembly. According to the camera module, imaging can be carried out on light rays of different wave bands, meanwhile, the first wave band light ray and the second wave band light ray can share one lens and one image sensor, and miniaturization is facilitated.

Description

Technical Field

[0001] The present application relates to the field of camera technology, and in particular to a camera module and electronic equipment. Background Art

[0002] With the rapid development of camera technology, more and more electronic devices such as smart phones, tablet computers, and e-readers are equipped with camera modules to achieve shooting functions. At the same time, the functions of camera modules in electronic devices are no longer limited to recording or sharing, but can also provide safety guidance for users in dangerous scenes such as outdoor exploration. However, in current electronic devices, the camera module has poor camera performance in low-light scenes such as foggy weather and dark environments, making it difficult to meet safety requirements. Summary of the invention

[0003] The embodiments of the present application provide a camera module and an electronic device to solve the problem of poor camera performance of the camera module in scenes with low light such as foggy weather and dark environments.

[0004] A camera module, comprising:

[0005] First aperture;

[0006] a first transmission element, opposite to the first aperture;

[0007] Second aperture;

[0008] a second transmission element, opposite to the second aperture;

[0009] An imaging component, comprising a lens and an image sensor arranged in sequence along the propagation direction of the light path;

[0010] Conductive components;

[0011] The camera module is configured to be able to selectively open either the first aperture or the second aperture, the first conductive element is able to transmit at least part of the first-band light to the conductive component and filter out at least part of the second-band light, the second conductive element is able to transmit at least part of the second-band light to the conductive component and filter out at least part of the first-band light; the conductive component is configured to be able to transmit at least part of the light from the first conductive element and the second conductive element to the imaging component.

[0012] An electronic device comprises a camera module as described in any of the above embodiments.

[0013] The camera module selectively opens one of the first aperture and the second aperture. When the first aperture is opened, the light of the first wavelength band can pass through the first aperture and the first conductive element to the imaging component, while the light of the second wavelength band is filtered out by the first conductive element, so that the camera module has a camera mode for the light of the first wavelength band. When the second aperture is opened, the light of the second wavelength band can pass through the second aperture and the second conductive element to the imaging component, while the light of the first wavelength band is filtered out by the second conductive element, so that the camera module has a camera mode for the light of the second wavelength band. Thus, the camera module has different camera modes, and can image light of different wavelength bands to meet the shooting requirements of different scenes. For example, when one of the light of the first wavelength band and the light of the second wavelength band is visible light and the other is invisible light, the camera module can shoot with the help of invisible light in scenes with weak light such as foggy weather and dark environment, which is conducive to meeting safety requirements. At the same time, the first-band light passing through the first aperture and the first conducting element can be conducted to the imaging component through the conducting component, and the second-band light passing through the second aperture and the second conducting element can also be conducted to the imaging component, so that the two camera modules of the first-band light and the second-band light can share a lens and an image sensor, which can effectively compress the volume of the camera module while realizing the two camera modules, and is conducive to the miniaturized design of the camera module. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 Schematic diagram of the structure of electronic equipment in some embodiments.

[0016] Figure 2 Schematic diagram of the structure of the camera module in some embodiments.

[0017] Figure 3 Schematic diagram of the structure in which the first aperture is opened in some embodiments.

[0018] Figure 4 Schematic diagram of the structure in which the second aperture is closed in some embodiments.

[0019] Figure 5 Schematic diagram of the structure of the first aperture and the first conducting element in some embodiments.

[0020] Figure 6 Schematic diagram of the structure of the second aperture and the second conducting element in some embodiments.

[0021] Figure 7 Graph showing transmittance-wavelength curves of the second wavelength filter film in some embodiments.

[0022] Figure 8 Graph showing transmittance-wavelength curves of first wavelength band filter films in some embodiments.

[0023] Fig. 9 Schematic diagram of the structure of the lens and image sensor in some embodiments.

[0024] Fig.10 Schematic diagram of the structure of other components of the electronic device in some embodiments.

[0025] Reference numerals:

[0026] 10. electronic device; 11. housing; 111. first through hole; 112. second through hole; 20. camera module; 21. first aperture; 22. second aperture; 23. image sensor; 24. first transmission element; 241. first prism; 2411. first reflection surface; 2412. first light incident surface; 2413. first light exit surface; 242. second wavelength filter; 25. second transmission element; 251. second prism; 2 511, second reflecting surface; 2512, second light incident surface; 2513, second light emitting surface; 252, first band filter film; 26, third conducting element; 261, semi-transparent and semi-reflective surface; 27, fourth conducting element; 271, fourth reflecting surface; 30, lens; 31, first lens; 32, second lens; 33, third lens; 34, fourth lens; 35, fifth lens; 36, sixth lens; 37, lens barrel; 38, spacer. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0028] As used herein, "electronic device" refers to a device that can receive and / or send communication signals, including but not limited to a device that is connected via any one or more of the following connection methods:

[0029] (1) Connection via wired lines, such as Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection;

[0030] (2) Via wireless interfaces, such as cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, satellite networks, and AM-FM broadcast transmitters.

[0031] An electronic device configured to communicate via a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

[0032] (1) Satellite phone or cellular phone;

[0033] (2) Personal Communications System (PCS) terminals that can combine cellular radio telephones with data processing, fax, and data communications capabilities;

[0034] (3) Radiotelephone, pager, Internet / intranet access, Web browser, notepad, calendar, Personal Digital Assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

[0035] (4) conventional laptop and / or palmtop receivers;

[0036] (5) Conventional laptop and / or palmtop radio telephone transceivers, etc.

[0037] See also Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the structure of the electronic device 10 in some embodiments, Figure 2Schematic diagram of the structure of the camera module 20 in some embodiments. The camera module 20 provided in the present application includes but is not limited to being used in any applicable electronic device 10 such as a smartphone, a tablet computer, an e-reader, a wearable device, etc. The following embodiments take the camera module 20 used in a smartphone as an example. The camera module 20 includes a first aperture 21, a second aperture 22 and an imaging component. When the camera module 20 is arranged in the electronic device 10, the electronic device 10 also includes a housing 11, the housing 11 is provided with a first through hole 111 and a second through hole 112, the camera module 20 is accommodated in the housing 11, the first aperture 21 is opposite to the first through hole 111, and the second aperture 22 is opposite to the second through hole 112. The imaging component includes a lens 30 and an image sensor 23 which are sequentially arranged along the propagation direction of the light path. The lens 30 is provided with one or more lenses with optical focal length for adjusting the light and transmitting the light to the image sensor 23. The image sensor 23 includes but is not limited to a complementary metal oxide semiconductor (CMOS) or a charge-coupled device (CCD).

[0038] It can be understood that the first aperture 21 and the second aperture 22 serve as two light intake windows of the camera module 20, and both the first aperture 21 and the second aperture 22 can be opened or closed. When the first aperture 21 is opened, ambient light outside the electronic device 10 can enter the camera module 20 through the first through hole 111 and the first aperture 21, and be transmitted to the imaging component, and after being adjusted by the lens 30, it is projected onto the image sensor 23 to form an image. When the first aperture 21 is closed, ambient light outside cannot enter the camera module 20 through the first aperture 21, and the opening and closing of the second aperture 22 are similar. Figure 3 and Figure 4 As shown, Figure 3 Taking the opening of the first aperture 21 as an example, the middle of the first aperture 21 forms a light-transmitting area opposite to the first through hole 111. Figure 4 Taking the closing of the second aperture 22 as an example, the portion of the second aperture 22 that is opposite to the second through hole 112 can block light.

[0039] Further, in some embodiments, the camera module 20 further includes a first conductive element 24, a second conductive element 25, a conductive component, and a control element. The first conductive element 24 is opposite to the first aperture 21, for example, it is arranged on the side of the first aperture 21 facing away from the first through hole 111, and the second conductive element 25 is opposite to the second aperture 22, for example, it is arranged on the side of the second aperture 22 facing away from the second through hole 112. The control element is used to selectively open any one of the first aperture 21 and the second aperture 22. The control element can be a central processor of the electronic device 10, or a chip specially used to control the switch of the first aperture 21 and the second aperture 22 provided in the electronic device 10 or the camera module 20. The first conductive element 24 can transmit at least part of the first wavelength band light to the conductive component and filter out at least part of the second wavelength band light. The second conductive element 25 can transmit at least part of the second wavelength band light to the conductive component and filter out at least part of the first wavelength band light. The conductive component is configured to transmit at least part of the light from the first conductive element 24 and the second conductive element 25 to the imaging component.

[0040] It can be understood that when the control element controls the first aperture 21 to open and the second aperture 22 to close, the external ambient light cannot enter the camera module 20 through the second aperture 22, and the second band light in the light entering the camera module 20 from the first aperture 21 is filtered out by the first conductive element 24, and the first band light can be transmitted to the transmission component by the first conductive element 24, and then transmitted to the imaging component by the transmission component, and then projected to the image sensor 23 for imaging after being adjusted by the lens 30. When the control element controls the second aperture 22 to open and the first aperture 21 to close, the external ambient light cannot enter the camera module 20 through the first aperture 21, and the first band light in the light entering the camera module 20 from the second aperture 22 is filtered out by the second conductive element 25, and the second band light can be transmitted to the transmission component by the second conductive element 25, and then transmitted to the imaging component by the transmission component, and then projected to the image sensor 23 for imaging after being adjusted by the lens 30. That is to say, the camera module 20 can selectively image the first wavelength band light or the second wavelength band light in the external ambient light.

[0041] The camera module 20 selectively opens one of the first aperture 21 and the second aperture 22. When the first aperture 21 is opened, the camera module 20 has a camera mode for the first band of light, and when the second aperture 22 is opened, the camera module 20 has a camera mode for the second band of light. Thus, the camera module 20 has different camera modes, and can image light of different bands to meet the shooting requirements of different scenes. For example, when the light of the first band is visible light and the light of the second band is invisible light, if the visible light intensity in the external environment can meet the shooting requirements, the first aperture 21 can be opened and the second aperture 22 can be closed. When the visible light intensity in the external environment is weak, for example, in foggy weather, dark environment and other scenes with weak light, the first aperture 21 can be closed and the second aperture 22 can be opened. Shooting with the help of invisible light can also capture clear images of the scene, provide safety guidance for users, and help meet safety requirements. Moreover, at least one of the first aperture 21 and the second aperture 22 is in a closed state at the same time, which can avoid mutual interference between visible light and infrared light imaging, and is beneficial to improving the imaging quality of the camera module 20 for the two wavelength bands of light.

[0042] At the same time, the first-band light passing through the first aperture 21 and the first conducting element 24 can be conducted to the imaging component through the conducting component, and the second-band light passing through the second aperture 22 and the second conducting element 25 can also be conducted to the imaging component, so that the two camera modules 20 of the first-band light and the second-band light can share a lens 30 and an image sensor 23, and the volume of the camera module 20 can be effectively compressed while realizing the two camera modules 20, which is conducive to the miniaturization design of the camera module 20. In addition, the way of changing the camera mode of the camera module 20 by controlling the opening or closing of the first aperture 21 and the second aperture 22 is conducive to simplifying the structural design of the camera module 20 and reducing the preparation cost of the camera module 20.

[0043] It should be noted that in the present application, one of the first band light and the second band light can be visible light, and the other can be invisible light. For example, the first band light is visible light, and the second band light is infrared light. For infrared light imaging, environmental images in low-light environments can be effectively captured. The second band light can also be ultraviolet light or any other applicable invisible light, as long as it can meet the shooting requirements in low-light environments. In the present application, the image sensor 23 can use any applicable photosensitive element that can image visible light and invisible light, such as a photosensitive element that can image visible light and infrared light, or visible light and ultraviolet light.

[0044] In the present application, the first aperture 21 and the second aperture 22 include but are not limited to any suitable apertures such as mechanical apertures, as long as they can be opened to let light pass or closed to block light from passing through. When the first aperture 21 and the second aperture 22 are mechanical apertures, the first aperture 21 and the second aperture 22 can both be composed of a plurality of arc-shaped metal blades, and the opening and closing of the metal blades can be controlled by a driving element such as a motor to realize the opening and closing of the first aperture 21 and the second aperture 22. For example, in combination with Figure 3 and Figure 4 As shown, when the diaphragm needs to be controlled to be closed, the driving element controls the metal blades to gather toward the center, and when the diaphragm needs to be controlled to be opened, the driving element controls the metal blades to spread out to the surroundings.

[0045] Please see again Figure 2 In some embodiments, the transmission component includes a third transmission element 26 and a fourth transmission element 27. The third transmission element 26 is disposed between the first transmission element 24 and the lens 30 along the propagation direction of the optical path, and is used to transmit at least part of the light passing through the first transmission element 24 to the lens 30. The fourth transmission element 27 is disposed between the second transmission element 25 and the third transmission element 26 along the propagation direction of the optical path, and is used to transmit at least part of the light passing through the second transmission element 25 to the third transmission element 26. The third transmission element 26 is also used to transmit at least part of the light from the fourth transmission element 27 to the lens 30. It can be understood that the first-band light incident from the first aperture 21 can be conducted by the first conducting element 24 to the third conducting element 26, and the second-band light incident from the second aperture 22 can be conducted by the second conducting element 25 and the fourth conducting element 27 to the third conducting element 26. The third conducting element 26 can conduct both the first-band light from the first conducting element 24 and the second-band light from the fourth conducting element 27 to the lens 30, thereby achieving the effect of two-band light sharing one imaging component, and the third conducting element 26 plays a role of combining light in the camera module 20. In the present application, the light propagation path can be understood as the path of the light entering the first aperture 21 and the second aperture 22 and being conducted to the image sensor 23 in the camera module 20.

[0046] Combination Figure 2 , Figure 5 and Figure 6As shown, in some embodiments, the first conductive element 24 has a first reflective surface 2411, the third conductive element 26 has a semi-transparent and semi-reflective surface 261 capable of transmitting part of the light and reflecting part of the light, the first reflective surface 2411 is used to reflect at least part of the light passing through the first aperture 21 onto the semi-transparent and semi-reflective surface 261, wherein part of the first wavelength band light reflected by the first reflective surface 2411 can be projected onto the lens 30 through the semi-transparent and semi-reflective surface 261. The second conductive element 25 has a second reflective surface 2511, the fourth conductive element 27 has a fourth reflective surface 271, the second reflective surface 2511 is used to reflect at least part of the light passing through the second aperture 22 onto the fourth reflective surface 271, the fourth reflective surface 271 is used to reflect at least part of the light from the second reflective surface 2511 onto the semi-transparent and semi-reflective surface 261, and part of the second wavelength band light reflected by the fourth reflective surface 271 onto the semi-transparent and semi-reflective surface 261 can be reflected by the semi-transparent and semi-reflective surface 261 onto the lens 30.

[0047] For example, the planes where the first aperture 21 and the second aperture 22 are located can be parallel to each other, the first reflection surface 2411 and the axis of the first aperture 21 and the axis of the lens 30 form a 45° angle, the semi-transparent and semi-reflective surface 261 and the axis of the lens 30 form a 45° angle and are parallel to the fourth reflection surface 271, and the second reflection surface 2511 and the axis of the second aperture 22 and the axis of the lens 30 form a 45° angle. Thus, the structural layout of each component in the camera module 20 can be reasonably planned, and the effect of the first band light and the second band light sharing a lens 30 and an image sensor 23 can be achieved by reflecting and deflecting the light path and cooperating with the light combining effect of the semi-transparent and semi-reflective surface 261. The reflective folded light path through the first reflective surface 2411, the second reflective surface 2511 and the fourth reflective surface 271 is also beneficial to compressing the overall occupied space of the camera module 20, and is also beneficial to the corresponding position setting of the first aperture 21 and the second aperture 22, for example, making the first aperture 21 and the second aperture 22 roughly flush to adapt to the position layout of the first through hole 111 and the second through hole 112 of the shell 11.

[0048] In the above embodiment, the semi-transparent and semi-reflective surface 261 is used to combine the first and second wavelength bands of light in a semi-transparent and semi-reflective manner, which is conducive to simplifying the structural complexity of the camera module 20 and reducing the manufacturing cost of the camera module 20. The transmittance and reflectivity of the semi-transparent and semi-reflective surface 261 can be 50%. The third conductive element 26 can be a semi-transparent and semi-reflective mirror, for example, composed of a glass substrate and a semi-transparent and semi-reflective film arranged on the glass substrate, and one surface of the semi-transparent and semi-reflective film can be regarded as the semi-transparent and semi-reflective surface 261. Of course, the third conductive element 26 can also be any other suitable light combining element such as a light combining prism and a beam combiner, as long as it can transmit part of the light from the first conductive element 24 and the fourth conductive element 27 to the imaging component, so that the first and second wavelength bands of light can be imaged using the same imaging component. Of course, the configuration of the transmission component is not limited to the above description. The transmission component can also transmit the light from the first transmission element 24 or from the second transmission element 25 to the imaging component by mechanical movement. For example, when it is necessary to image the light of the first wavelength band, the light-guiding part of the transmission component moves to between the first transmission element 24 and the imaging component for light guidance. When it is necessary to image the light of the second wavelength band, the light-guiding part of the transmission component moves to between the second transmission element 25 and the imaging component for light guidance. This can also achieve the effect of two wavelength bands of light sharing a set of imaging components.

[0049] In some embodiments, the first conductive element 24, the second conductive element 25 and the fourth conductive element 27 are prisms or plane reflectors. When the first conductive element 24 is a prism, it can be a right-angle prism, and a first reflective surface 2411 is formed by setting a reflective film on the inclined surface of the prism. When the first conductive element 24 is a plane reflector, the reflective surface of the plane reflector is regarded as the first reflective surface 2411, and the same applies to the second conductive element 25 and the fourth conductive element 27. When the first band of light is visible light and the second band of light is infrared light, the first conductive element 24 can be integrated with an infrared light cut-off filter film or doped with infrared light absorbing pigments, etc., so that the first conductive element 24 has the function of filtering out the second band of light. Similarly, the second conductive element 25 can be integrated with a visible light cut-off filter film or doped with visible light absorbing pigments, etc., so that the second conductive element 25 has the function of filtering out the first band of light.

[0050] See also Figure 5 and Figure 6 As shown, taking the first conductive element 24 and the second conductive element 25 including prisms as an example, Figure 5 The first aperture 21 is shown in an open state. Figure 6The second aperture 22 is shown in a closed state. In some embodiments, the first conductive element 24 includes a first prism 241 and a second wavelength filter 242. The second wavelength filter 242 can filter out at least part of the second wavelength light. When the second wavelength light is infrared light, the second wavelength filter 242 is an infrared cut-off filter. When the second wavelength light is ultraviolet light, the second wavelength filter 242 is an ultraviolet cut-off filter. The first prism 241 has a first light incident surface 2412 opposite to the first aperture 21 and a first light emitting surface 2413 opposite to the third conductive element 26 of the conductive component. The first reflective surface 2411 is located between the first light incident surface 2412 and the first light emitting surface 2413, and is inclined to the first light incident surface 2412 and the first light emitting surface 2413, for example, forming an angle of 45° with the first light incident surface 2412 and the first light emitting surface 2413. At least part of the light incident from the first aperture 21 enters the first prism 241 from the first light incident surface 2412, and is emitted from the first light emitting surface 2413 after being reflected by the first reflection surface 2411, and the second wavelength band filter film 242 is provided on at least one of the first light incident surface 2412 and the first light emitting surface 2413. It can be understood that among the light incident from the first aperture 21, the first wavelength band light can sequentially pass through the first light incident surface 2412, the first reflection surface 2411 and the first light emitting surface 2413 to be emitted to the third conductive element 26, while the second wavelength band light is filtered out by the second wavelength band filter film 242 on at least one of the first light incident surface 2412 and the first light emitting surface 2413, so that the first conductive element 24 has the function of transmitting the first wavelength band light and filtering out the second wavelength band light.

[0051] Similarly, the second conductive element 25 may include a second prism 251 and a first wavelength band filter film 252. The second prism 251 has a second light incident surface 2512 opposite to the second aperture 22 and a second light emitting surface 2513 opposite to the conductive component. The second reflective surface 2511 is located between the second light incident surface 2512 and the second light emitting surface 2513, and forms an angle of 45° with the second light incident surface 2512 and the second light emitting surface 2513. The first wavelength band filter film 252 can be a visible light cutoff filter film, which can filter out at least part of the first wavelength band light. Among the light rays incident on the camera module 20 from the second aperture 22, the second band light rays are incident on the fourth conductive element 27 after passing through the second light incident surface 2512, the second reflection surface 2511 and the second light exit surface 2513 in sequence, while the first band light rays are filtered out by the first band filter film 252 on at least one of the second light incident surface 2512 and the second light exit surface 2513, so that the second conductive element 25 can achieve the effect of transmitting the second band light rays and filtering out the first band light rays. It can be understood that by integrating the second band filter film 242 and the first band filter film 252 in the first conductive element 24 and the second conductive element 25, respectively, the filtering function and the reflection conductive function can be highly integrated, so as to facilitate the omission of the filter setting and to facilitate the compression of the overall occupied space of the camera module 20.

[0052] In other embodiments, in the first conductive element 24, the second wavelength filter film 242 can be omitted, and the first conductive element 24 further includes a second wavelength filter pigment doped in the first prism 241, and the second wavelength filter pigment can filter out at least part of the second wavelength light. The second wavelength filter pigment can be doped in the injection molding material of the first prism 241 during the injection molding process of the first prism 241, so that the first conductive element 24 can filter out the second wavelength light passing through the first conductive element 24. Similarly, in the second conductive element 25, the first wavelength filter film 252 can be omitted, and the second conductive element 25 further includes a first wavelength filter pigment doped in the second prism 251, and the second wavelength filter pigment can filter out at least part of the first wavelength light. The setting of doping pigments in the first prism 241 and the second prism 251 to realize the filtering function is also conducive to omitting the setting of the filter, highly integrating the filtering function and the reflection and conduction function, and is conducive to compressing the occupied space of the camera module 20.

[0053] Combination Figure 7 and Figure 8 As shown, in some embodiments, the transmittance-wavelength curve of the second wavelength filter film 242 or the second wavelength filter pigment in the first conductive element 24 is as shown in FIG. Figure 7As shown, by cutting off the infrared light at a wavelength of 710nm (at a transmittance of 1%), the infrared light can be effectively cut off when the camera module 20 adopts a shooting mode for visible light, thereby improving the quality of visible light photography. The transmittance-wavelength curve of the first band filter film 252 or the first band filter pigment in the second conductive element 25 is as shown in FIG. Figure 8 As shown, it can be seen that the second conductive element 25 can effectively cut off visible light and transmit infrared light, so that the camera module 20 can achieve good imaging quality for infrared light in the infrared light camera mode.

[0054] Combination Figure 2 and Fig. 9 As shown, the number and specific design of the lenses in the lens 30 are not limited, as long as at least part of the light from the third conductive element 26 can be adjusted and then transmitted to the image sensor 23 to form a clear image. Fig. 9 An example of one of the lenses 30 is given in FIG. 1 . In some embodiments, the lens 30 includes, along the light propagation path, a first lens 31 having positive optical power, a second lens 32 having positive optical power, a third lens 33 having negative optical power, a fourth lens 34 having negative optical power, a fifth lens 35 having positive optical power, and a sixth lens 36 having optical power. The object side surface of the first lens 31 is convex at the near optical axis, the object side surface of the second lens 32 is convex at the near optical axis, the object side surface of the third lens 33 is convex at the near optical axis, and the image side surface is concave at the near optical axis, the object side surface of the fourth lens 34 is concave at the near optical axis, and the image side surface is convex at the near optical axis, and the object side surface of the fifth lens 35 is convex at the near optical axis, and the image side surface is concave at the near optical axis.

[0055] In the above-mentioned lens 30, the positive focal power of the first lens 31 is matched with the surface design of the convex surface on the object side, which is conducive to improving the ability of the lens 30 to capture light. The focal power and surface design of the first lens 31 and the second lens 32 are matched, which can balance the focal power distribution of the front end of the lens 30, suppress the generation of aberrations while converging light, and reduce the burden of the image side lenses on the deflection of light. At the same time, it also makes the positive focal power of the first lens 31 and the second lens 32 not too concentrated, which is conducive to reducing the tolerance sensitivity and aberration sensitivity of the lens 30, thereby improving the molding and assembly yield of each lens, and the imaging quality of the lens 30. The negative focal power of the third lens 33 is matched with the surface design, which can balance the convergence effect of the first lens 31 and the second lens 32, avoid excessive convergence of light, and is conducive to correcting aberrations such as spherical aberration and coma, and improving the imaging quality of the lens 30. The focal power and surface design of the fourth lens 34 are matched with the third lens 33, which can make the light transition smoothly, further correct various aberrations, and improve the imaging quality. The focal length and surface design of the fifth lens 35 cooperate with the sixth lens 36, and can smoothly transition the light to the imaging surface, which is conducive to correcting aberrations such as field curvature, chromatic aberration, and distortion, improving the matching degree between the incident angle of the light on the imaging surface and the image sensor 23, and improving the imaging quality of the camera module 20 for visible light and infrared light. Therefore, the focal length and surface shape of each lens of the above-mentioned lens 30 can be reasonably configured, so that the camera module 20 can have good imaging quality for both visible light and infrared light, and cooperate with the optical path design of the camera module 20, it can realize two clear imaging modes for visible light and infrared light imaging.

[0056] Furthermore, in some embodiments, the sixth lens 36 has a negative optical power, the image side surface of the first lens 31 is concave at the near optical axis, the image side surface of the second lens 32 is concave at the near optical axis, the object side surface of the sixth lens 36 is convex at the near optical axis, and the image side surface is concave at the near optical axis. Thus, the first lens 31 and the second lens 32 can balance the trend of light while converging light, which is conducive to correcting aberrations such as spherical aberration and coma, and improving the imaging quality of the lens 30. The focal power and surface design of the sixth lens 36 are matched to reasonably diverge the light to the imaging surface, so that the light is better focused on the imaging surface, which is conducive to correcting aberrations such as chromatic aberration and distortion, improving the accuracy and color reproduction of imaging, and improving the imaging quality of the lens 30 for visible light and infrared light.

[0057] In some embodiments, the lens 30 further includes a lens barrel 37, and each lens in the lens 30 is fixed in the lens barrel 37 by optical adhesive bonding or any other suitable method. The lens 30 further includes a plurality of spacers 38, and the plurality of spacers 38 can be respectively arranged between two adjacent lenses, and the opposite sides of the spacers 38 can respectively abut against the two adjacent lenses, and the spacers 38 can define the light aperture at the corresponding position. In other words, the spacers 38 can be used to block stray light outside the light aperture and adjust the interval between the lenses.

[0058] In some embodiments, the lens 30 satisfies the conditional formula: 0.11≤f1 / f2≤0.17; wherein f1 is the focal length of the first lens 31, and f2 is the focal length of the second lens 32. For example, f1 / f2 can be 0.11, 0.12, 0.13, 0.14, 0.15, 0.16 or 0.17. When the above conditional formula is met, the ratio of the focal lengths of the first lens 31 and the second lens 32 can be reasonably configured, thereby reasonably configuring the optical focal power of the front end of the lens 30, improving the coordination of the first lens 31 and the second lens 32 in the light converging ability, and facilitating the correction of aberrations and improving the imaging quality.

[0059] In some embodiments, the lens 30 satisfies the conditional formula: 0.39≤f3 / f4≤0.6; f3 is the focal length of the third lens 33, and f4 is the focal length of the fourth lens 34. Among them, f3 / f4 can be 0.39, 0.45, 0.5, 0.59 or 0.6. When the above conditional formula is met, the focal length ratio of the third lens 33 and the fourth lens 34 can be reasonably configured, and the optical power of the third lens 33 and the fourth lens 34 can be balanced, which is conducive to controlling the divergence of light in the third lens 33 and the fourth lens 34, so that the third lens 33 and the fourth lens 34 can form a good match with each lens on the object side and the image side, effectively suppress aberrations, and improve imaging quality.

[0060] In some embodiments, the lens 30 satisfies the conditional formula: 0.4≤d12 / d23≤0.61; wherein d12 is the distance on the optical axis from the image side surface of the first lens 31 to the object side surface of the second lens 32, and d23 is the distance on the optical axis from the image side surface of the second lens 32 to the object side surface of the third lens 33. For example, d12 / d23 can be 0.4, 0.45, 0.5, 0.57, 0.59 or 0.61. When the above conditional formula is met, the ratio of the air gap between the first lens 31 and the second lens 32 to the air gap between the second lens 32 and the third lens 33 can be reasonably configured, which is beneficial to reduce the tolerance sensitivity of the lens 30 and improve the assembly yield, and is also beneficial for light to have a reasonable propagation space between the first three lenses, which is beneficial to improve the imaging quality.

[0061] In some embodiments, the lens 30 satisfies the conditional formula: 0.28≤(R2-R3) / (R2+R3)≤0.42; wherein R2 is the radius of curvature of the image side surface of the first lens 31 at the optical axis, and R3 is the radius of curvature of the object side surface of the second lens 32 at the optical axis. For example, (R2-R3) / (R2+R3) can be 0.28, 0.3, 0.33, 0.38, 0.4 or 0.42. When the above conditional formula is met, the relationship between the radius of curvature of the image side surface of the first lens 31 and the object side surface of the second lens 32 can be reasonably configured, which is conducive to a smoother transition of light between the first lens 31 and the second lens 32, reduces the generation of aberrations, and helps to improve the imaging quality of the lens 30.

[0062] Based on the above description, an example of a lens 30 in one embodiment is provided below. Various parameters of the lens 30 are given in the following Table 1, wherein the “Glass” column in Table 1 represents the glass material model of the corresponding lens.

[0063] Table 1

[0064]

[0065]

[0066] In some embodiments, the object side and image side of each lens in the lens 30 are both aspherical surfaces, and the aspherical coefficients of the object side and image side of each lens are given in the following Table 2, where K-A20 respectively represent the types of aspherical coefficients, where K represents the cone coefficient, A4 represents the fourth-order aspherical coefficient, A6 represents the sixth-order aspherical coefficient, A8 represents the eighth-order aspherical coefficient, and so on. In addition, the aspherical coefficient formula is as follows:

[0067]

[0068] Among them, Z is the distance from the corresponding point on the aspherical surface to the plane tangent to the surface vertex, r is the distance from the corresponding point on the aspherical surface to the optical axis, c is the curvature of the aspherical vertex, K is the cone coefficient, and Ai is the coefficient corresponding to the i-th high-order term in the aspherical surface shape formula.

[0069] Table 2

[0070]

[0071]

[0072] In some embodiments, the lens 30 satisfies the following data: f1 / f2=0.14; f3 / f4=0.496; d12 / d23=0.509; (R2-R3) / (R2+R3)=0.351. The effects that can be obtained by satisfying the above data can be obtained by referring to the above records, which will not be described in detail here.

[0073] refer to Fig.10 , Fig.10 The electronic device 10 is a schematic diagram of the structure of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may include a radio frequency (RF) circuit 501, a memory 502 including one or more computer-readable storage media, an input unit 503, a display unit 504, a sensor 505, an audio circuit 506, a wireless fidelity (WiFi) module 507, a processor 508 including one or more processing cores, and a power supply 509. Those skilled in the art will understand that Fig.10 The structure of the electronic device 10 shown in the figure does not constitute a limitation on the electronic device 10, and the electronic device 10 may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0074] The radio frequency circuit 501 can be used to send and receive information, or receive and send signals during a call. In particular, after receiving the downlink information of the base station, it is handed over to one or more processors 508 for processing; in addition, the data related to the uplink is sent to the base station. Usually, the radio frequency circuit 501 includes but is not limited to an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (SIM) card, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc. In addition, the radio frequency circuit 501 can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to the global system for mobile communications (GSM), the general packet radio service (GPRS), the code division multiple access (CDMA), the wideband code division multiple access (WCDMA), the long term evolution (LTE), email, the short message service (SMS), etc.

[0075] The memory 502 can be used to store applications and data. The applications stored in the memory 502 contain executable codes. The applications can be composed of various functional modules. The processor 508 executes various functional applications and data processing by running the applications stored in the memory 502. The memory 502 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the electronic device 10 (such as audio data, a phone book, etc.), etc. In addition, the memory 502 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 502 can also include a memory controller to provide the processor 508 and the input unit 503 with access to the memory 502.

[0076] The input unit 503 can be used to receive input digital, character information or user feature information (such as fingerprints), and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, in a specific embodiment, the input unit 503 may include a touch-sensitive surface and other input devices. The touch-sensitive surface, also known as a touch display screen or a touch pad, can collect user touch operations on or near it (such as operations performed by users using fingers, styluses, or any other suitable objects or accessories on or near the touch-sensitive surface), and drive corresponding connection devices according to a pre-set program. Optionally, the touch-sensitive surface may include a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into touch point coordinates, and then sends it to the processor 508, and can receive and execute commands sent by the processor 508.

[0077] The display unit 504 can be used to display information input by the user or information provided to the user and various graphical user interfaces of the electronic device 10, which can be composed of graphics, text, icons, videos and any combination thereof. The display unit 504 may include a display panel. Optionally, the display panel can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Furthermore, the touch-sensitive surface may cover the display panel, and when the touch-sensitive surface detects a touch operation on or near it, it is transmitted to the processor 508 to determine the type of touch event, and then the processor 508 provides a corresponding visual output on the display panel according to the type of touch event. Although in Fig.10 In the embodiment, the touch-sensitive surface and the display panel are used as two independent components to realize input and output functions, but in some embodiments, the touch-sensitive surface and the display panel can be integrated to realize input and output functions.

[0078] The electronic device 10 may also include at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel according to the brightness of the ambient light, and the proximity sensor may turn off the display panel and / or backlight when the electronic device 10 is moved to the ear. As a type of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that the electronic device 10 can also be configured with, such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be repeated here.

[0079] The audio circuit 506 can provide an audio interface between the user and the electronic device 10 through a speaker and a microphone. The audio circuit 506 can convert the received audio data into an electrical signal, transmit it to the speaker, and convert it into a sound signal for output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 506 and converted into audio data, and then the audio data is output to the processor 508 for processing, and then sent to another electronic device 10 through the radio frequency circuit 501, or the audio data is output to the memory 502 for further processing. The audio circuit 506 may also include an earphone socket to provide communication between an external earphone and the electronic device 10.

[0080] Wireless Fidelity (WiFi) is a short-range wireless transmission technology. The electronic device 10 can help users send and receive emails, browse web pages, and access streaming media through the wireless fidelity module 507, which provides users with wireless broadband Internet access. Fig.10 The wireless fidelity module 507 is shown, but it is understandable that it is not a necessary component of the electronic device 10 and can be omitted as needed without changing the essence of the invention.

[0081] The processor 508 is the control center of the electronic device 10. It uses various interfaces and lines to connect various parts of the entire electronic device 10. By running or executing applications stored in the memory 502 and calling data stored in the memory 502, it executes various functions of the electronic device 10 and processes data, thereby monitoring the electronic device 10 as a whole. Optionally, the processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 508.

[0082] The electronic device 10 also includes a power supply 509 for supplying power to various components. Preferably, the power supply 509 can be logically connected to the processor 508 through a power management system, so that the power management system can manage charging, discharging, and power consumption. The power supply 509 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0083] although Fig.10 Not shown, the electronic device 10 may also include a Bluetooth module, etc., which will not be described in detail here. In specific implementation, the above modules can be implemented as independent entities, or can be arbitrarily combined and implemented as the same or several entities. The specific implementation of the above modules can refer to the previous method embodiment, which will not be described in detail here.

[0084] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A camera module, characterized in that: include: First aperture; a first transmission element, opposite to the first aperture; Second aperture; a second transmission element, opposite to the second aperture; An imaging component, comprising a lens and an image sensor arranged in sequence along the propagation direction of the light path; Conductive components; The camera module is configured to be able to selectively open either the first aperture or the second aperture, the first conductive element is able to transmit at least part of the first-band light to the conductive component and filter out at least part of the second-band light, the second conductive element is able to transmit at least part of the second-band light to the conductive component and filter out at least part of the first-band light; the conductive component is configured to be able to transmit at least part of the light from the first conductive element and the second conductive element to the imaging component.

2. The camera module according to claim 1, characterized in that: The first transmission element comprises a first prism and a second wavelength band filter film, the first prism has a first light incident surface opposite to the first aperture and a first light exit surface opposite to the transmission component, the second wavelength band filter film is arranged on at least one of the first light incident surface and the first light exit surface, and can filter out at least part of the second wavelength band light; The second conductive element includes a second prism and a first wavelength band filter film, the second prism has a second light incident surface opposite to the second aperture and a second light emitting surface opposite to the conductive component, the first wavelength band filter film is arranged on at least one of the second light incident surface and the second light emitting surface, and can filter out at least part of the first wavelength band light.

3. The camera module according to claim 1, characterized in that: The first transmission element includes a first prism and a second wavelength band filter pigment doped in the first prism, wherein the second wavelength band filter pigment can filter out at least a portion of the second wavelength band light; The second transmission element includes a second prism and a first-wavelength-band filter pigment doped in the second prism, and the first-wavelength-band filter pigment can filter out at least a portion of the first-wavelength-band light.

4. The camera module according to claim 1, characterized in that: The conductive component includes a third conductive element and a fourth conductive element. The third conductive element is arranged between the first conductive element and the lens along the light propagation direction, and is used to transmit at least part of the light passing through the first conductive element to the lens. The fourth conductive element is arranged between the second conductive element and the third conductive element along the light propagation path, and is used to transmit at least part of the light passing through the second conductive element to the third conductive element. The third conductive element is also used to transmit at least part of the light from the fourth conductive element to the lens.

5. The camera module according to claim 4, characterized in that: The first conductive element has a first reflective surface, the third conductive element has a semi-transparent and semi-reflective surface capable of transmitting part of the light and reflecting part of the light, and the first reflective surface is used to reflect at least part of the light passing through the first aperture onto the semi-transparent and semi-reflective surface; The second conductive element has a second reflective surface, and the fourth conductive element has a fourth reflective surface. The second reflective surface is used to reflect at least part of the light passing through the second aperture onto the fourth reflective surface, and the fourth reflective surface is used to reflect at least part of the light from the second reflective surface onto the semi-transparent and semi-reflective surface. The semi-transparent and semi-reflective surface is used to transmit part of the light from the first reflective surface to the lens, and to reflect part of the light from the fourth reflective surface onto the lens.

6. The camera module according to claim 5, characterized in that: The first conductive element, the second conductive element, and the fourth conductive element include prisms or plane mirrors.

7. The camera module according to claim 5, characterized in that: The first reflecting surface forms an angle of 45° with the axis of the first aperture and the axis of the lens, the semi-transparent and semi-reflective surface forms an angle of 45° with the axis of the lens and is parallel to the fourth reflecting surface, and the second reflecting surface forms an angle of 45° with the axis of the second aperture and the axis of the lens.

8. The camera module according to claim 1, characterized in that: The first wavelength band light includes visible light, and the second wavelength band light includes infrared light or ultraviolet light.

9. The camera module according to claim 1, characterized in that: The lens comprises, in sequence along the light propagation path, a first lens with positive optical power, a second lens with positive optical power, a third lens with negative optical power, a fourth lens with negative optical power, a fifth lens with positive optical power, and a sixth lens with optical power, wherein the object side surface of the first lens is convex at the near optical axis, the object side surface of the second lens is convex at the near optical axis, the object side surface of the third lens is convex at the near optical axis, and the image side surface is concave at the near optical axis, the object side surface of the fourth lens is concave at the near optical axis, and the image side surface is convex at the near optical axis, and the object side surface of the fifth lens is convex at the near optical axis, and the image side surface is concave at the near optical axis.

10. The camera module according to claim 9, characterized in that: The sixth lens has negative optical power, the image side surface of the first lens is concave at the near optical axis, the image side surface of the second lens is concave at the near optical axis, the object side surface of the sixth lens is convex at the near optical axis, and the image side surface is concave at the near optical axis.

11. The camera module according to claim 9, characterized in that: The lens satisfies the following conditional formula: 0.11≤f1 / f2≤0.17; 0.39≤f3 / f4≤0.6; Among them, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, and f4 is the focal length of the fourth lens.

12. The camera module according to claim 9, characterized in that: The lens satisfies the following conditional formula: 0.4≤d12 / d23≤0.61; Wherein, d12 is the distance from the image side surface of the first lens to the object side surface of the second lens on the optical axis, and d23 is the distance from the image side surface of the second lens to the object side surface of the third lens on the optical axis.

13. The camera module according to claim 9, characterized in that: The lens satisfies the following conditional formula: 0.28≤(R2-R3) / (R2+R3)≤0.42; Wherein, R2 is the curvature radius of the image side surface of the first lens at the optical axis, and R3 is the curvature radius of the object side surface of the second lens at the optical axis.

14. An electronic device, characterized in that: Comprising a camera module as described in any one of claims 1-13.

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