Camera optical system, periscope camera and electronic device

Abstract

The application discloses a camera optical system, a periscopic camera and electronic equipment, and relates to the technical field of intelligent devices.In the application, a turning piece is used for turning light; a first lens group has negative refractive power, is used for receiving light turned by the turning piece, and transmits the light; a second lens group has positive refractive power, is used for receiving light transmitted by the first lens group, and transmits the light; a third lens group has negative refractive power, is used for receiving light transmitted by the second lens group, and transmits the light; and an image receiving piece is used for receiving light transmitted by the third lens group; the distance between the first lens group and the second lens group and the distance between the third lens group and the image receiving piece are adjustable. According to the application, the distance between the first lens group and the second lens group and the distance between the third lens groups and the image receiving piece are matched and adjustable, the optical magnification is more than 5 times, and the imaging quality is improved.

Description

Technical Field

[0001] This application relates to the field of smart device technology, and in particular to a camera optical system, a periscope camera, and an electronic device. Background Technology

[0002] Currently, telephoto modules in mobile phones or mobile terminals typically use fixed-focus modules, such as equivalent 50mm, 75mm, 125mm, etc. The inventor believes that they cannot achieve more than 5 times optical magnification, resulting in a significant reduction in image quality. Summary of the Invention

[0003] This application provides a camera optical system, including:

[0004] A deflector, used to redirect light rays;

[0005] The first lens group has negative refractive power and is used to receive the light rays deflected by the deflector and to transmit the light rays.

[0006] The second lens group has positive refractive power and is used to receive the light transmitted through the first lens group and transmit the light.

[0007] The third lens group, having negative refractive power, is used to receive the light transmitted through the second lens group and to transmit the light; and

[0008] An image receiver is configured to receive light transmitted through the third lens group, wherein the distance between the first lens group and the second lens group and the distance between the third lens group and the image receiver are adjustable.

[0009] This application provides a periscope camera, including:

[0010] Fasteners; and

[0011] The aforementioned camera optical system is mounted on the fixing member.

[0012] This application provides an electronic device, including:

[0013] casing; and

[0014] The periscope camera described above is mounted on the housing.

[0015] This application provides an electronic device, including:

[0016] The housing includes a first sub-housing and a second sub-housing slidably connected to the first sub-housing;

[0017] In the aforementioned camera optical system, the steering component and the first lens group are disposed on the first sub-housing, the second lens group and the image receiver are disposed on the second sub-housing, and the third lens group is slidably connected to the second sub-housing. The first sub-housing and the second sub-housing are configured to adjust the distance between the first lens group and the second lens group relative to each other. When the distance between the first lens group and the second lens group is adjusted, the third lens group adjusts the distance between the third lens group and the image receiver relative to the second sub-housing.

[0018] In this application, the first lens group has negative refractive power, the second lens group has positive refractive power, and the third lens group has negative refractive power. Furthermore, by coordinating and adjusting the distance between the first and second lens groups and the distance between the third lens group and the image receiver, optical magnification of more than 5 times can be achieved, thereby improving the imaging quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 These are exploded views of electronic devices in some embodiments of this application;

[0021] Figure 2 for Figure 1 The illustrated embodiments show schematic diagrams of the use of electronic devices in some embodiments;

[0022] Figure 3 for Figure 1 The diagram shows the external structure of the periscope camera in some embodiments.

[0023] Figure 4 for Figure 3 The diagram shows a structural schematic of a periscope camera in some embodiments.

[0024] Figure 5 for Figure 4 The diagram shows a schematic representation of the camera optical system in some embodiments.

[0025] Figure 6 for Figure 5 The diagram shows the structural schematic of the steering component in the embodiment shown.

[0026] Figure 7 for Figure 6A schematic diagram of the steering component in one embodiment as shown in another embodiment;

[0027] Figure 8 for Figure 5 A schematic diagram of the steering component in one embodiment as shown in another embodiment;

[0028] Figure 9 for Figure 5 A schematic diagram of the steering component in one embodiment as shown in another embodiment;

[0029] Figure 10 for Figure 4 A schematic diagram of the periscope camera in another embodiment shown in the illustration;

[0030] Figure 11 for Figure 1 The illustrated embodiment shows a schematic diagram of the electronic device in other embodiments. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] Please see Figure 1 , Figure 1 These are exploded views of electronic devices in some embodiments of this application. The electronic device 100 can be an electronic device or mobile terminal, or other electronic devices with display and camera functions, specifically a mobile phone, tablet computer, laptop computer, smart bracelet, smartwatch, smart helmet, or smart glasses, etc. The electronic device 100 in this application embodiment is described using a mobile phone as an example. It is understood that the specific form of the electronic device 100 can also be other, and is not limited here.

[0034] The term "electronic device" as used herein (also referred to as a "terminal," "mobile terminal," or "electronic device") includes, but is not limited to, devices configured to receive / transmit communication signals via a wired connection (such as via a Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital Cable, Direct Cable Connection, and / or another data connection / network) and / or via a wireless interface (e.g., for cellular networks, Wireless Local Area Networks (WLANs), Digital Television Networks such as DVB-H networks, Satellite Networks, AM-FM Broadcast Transmitters, and / or another communication terminal). A communication terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal," "wireless terminal," or "mobile terminal." Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, notepads, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or handheld receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

[0035] Please see Figure 1 The electronic device 100 may include a housing 101, a display screen 102 mounted on the housing 101, and a periscope camera 103 disposed within the housing 101. The housing 101 serves as the outer casing of the electronic device 100, housing and mounting the display screen 102 and the periscope camera 103, and also protecting the internal electronic components (such as the motherboard, battery, sensors, buttons, or the periscope camera 103). The display screen 102 can be used to display images or information. The periscope camera 103 can be used as a front-facing or rear-facing camera for video recording. The periscope camera 103 can achieve at least 3x-5x or more optical magnification, thereby improving image quality.

[0036] Please see Figure 1 The housing 101 may include a mid-frame 104 and a cover plate 105 connected to the mid-frame 104. The mid-frame 104 and the cover plate 105 are connected to form a receiving cavity 1001 for accommodating electronic components inside the electronic device 100. In some embodiments, the mid-frame 104, for example, its side edge, may have an opening 1041 communicating with the receiving cavity 1001 to cooperate with a periscope camera 103. In some embodiments, the cover plate 105 may be connected and fixed to the mid-frame 104 on one side. In some embodiments, the mid-frame 104 and the cover plate 105 may be integrally injection molded or connected and fixed to form an integral structure.

[0037] Please see Figure 1The display screen 102 can be electrically connected to electronic components inside the electronic device 100, such as a battery and / or a processor (located on a motherboard), for displaying information. In some embodiments, the display screen 102 can be disposed on a mid-frame 104 and opposite to a cover plate 105, such that a receiving cavity 1001 is located between the display screen 102 and the cover plate 105. In some embodiments, the display screen 102 is located on the side of the mid-frame 104 away from the cover plate 105.

[0038] Please see Figure 1 The periscope camera 103 can be installed in the housing 101, for example, the cavity 1001.

[0039] Please see Figure 2 , Figure 2 for Figure 1 The illustrated embodiment shows a schematic diagram of the use of the electronic device 100 in some embodiments. A periscope camera 103 can extend from or retract from a housing 101, such as a receiving cavity 1001. For example, the periscope camera 103 can extend from the housing 101, such as a receiving cavity 1001, and can be converted from a first state where it is at least partially or completely placed within the housing 101, such as a receiving cavity 1001, to a second state where it is at least partially or completely placed outside the housing 101, such as a receiving cavity 1001. For example, the periscope camera 103 can retract into the housing 101, such as a receiving cavity 1001, and can be converted from a second state where it is at least partially or completely placed outside the housing 101, such as a receiving cavity 1001, to a first state where it is at least partially or completely placed within the housing 101, such as a receiving cavity 1001.

[0040] It should be noted that the terms "first," "second," etc., used herein and below are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of the stated features.

[0041] In one embodiment, the periscope camera 103 may be disposed within the housing 101, for example, the receiving cavity 1001, at a position corresponding to the opening 1041, so that the periscope camera 103 can extend or retract from the opening 1041. In one embodiment, the periscope camera 103 may be disposed within the mid-frame 104, for example, the edge, at a position corresponding to the opening 1041, so that the periscope camera 103 can extend or retract from the opening 1041. In one embodiment, the periscope camera 103 may be disposed within the cover plate 105 at a position corresponding to the opening 1041, so that the periscope camera 103 can extend or retract from the opening 1041. In some embodiments, the periscope camera 103 may slide within the opening 1041, thereby transitioning from a first state to a second state, or vice versa.

[0042] Understandably, the periscope camera 103 may also be housed only within the housing 101, such as the cavity 1001, and not extend outside the housing 101, such as the cavity 1001.

[0043] Please see Figure 3 and Figure 4 , Figure 3 for Figure 1 The diagram shows the external structure of the periscope camera 103 in some embodiments. Figure 4 for Figure 3 The diagram shows a schematic representation of the periscope camera 103 in some embodiments. The periscope camera 103 can be a periscope telephoto camera. Compared to a vertical camera, the height of the camera can be reduced by changing the propagation path of light, thereby reducing the overall thickness of the electronic device 100.

[0044] The periscope camera 103 may include a first housing 10, a second housing 20 having an adjustable relative displacement with respect to the first housing 10, and a camera optical system 30 that cooperates with the first housing 10 and the second housing 20.

[0045] Please see Figure 3 and Figure 4The first housing 10 may be a housing structure or a frame structure, etc. In some embodiments, the first housing 10 may surround a first receiving space 1002 to cooperate with the camera optical system 30. In some embodiments, the first housing 10 may have a light inlet 11, which communicates with the first receiving space 1002, allowing light to enter the first receiving space 1002 through the light inlet 11 and be received by the camera optical system 30 to complete the image capture. In some embodiments, the first housing 10 may extend from the housing 101, such as the receiving cavity 1001, through an opening 1041, allowing light to enter the first receiving space 1002 and be received by the camera optical system 30 to complete the image capture. In some embodiments, the first housing 10 may extend from the housing 101, such as the receiving cavity 1001, through an opening 1041, so that the light inlet 11 is located outside the housing 101, such as the receiving cavity 1001, thereby allowing light to pass through the light inlet 11 into the first receiving space 1002 and be received by the camera optical system 30 to complete the image capture. In some embodiments, the first housing 10 is located within the housing 101, for example, the accommodating cavity 1001. Light passes through the housing 101 or the display screen 102 and enters the first receiving space 1002, where it is received by the camera optical system 30 to complete the image capture. In some embodiments, the first housing 10 is located within the housing 101, for example, the accommodating cavity 1001. Light passes through the housing 101 or the display screen 102, then through the light inlet 11 to enter the first receiving space 1002, where it is received by the camera optical system 30 to complete the image capture.

[0046] Please see Figure 3 and Figure 4 The second housing 20 may be a housing structure or a frame structure, etc. In some embodiments, the second housing 20 is disposed within the housing 101, for example, the receiving cavity 1001. In some embodiments, the second housing 20 may surround a second receiving space 1003, which communicates with the first receiving space 1002 and thus cooperates with the camera optical system 30.

[0047] In some embodiments, the second receiving space 1003 provided in the second housing 20 allows the first housing 10 to extend into the second housing 20, for example, the second receiving space 1003. Furthermore, the first housing 10 can move towards the side closer to the second housing 20, extending into the second housing 20, for example, the second receiving space 1003, to achieve an adjustable relative displacement, or move away from the second housing 20, extending outward from the second housing 20, for example, the second receiving space 1003, to achieve an adjustable relative displacement. Alternatively, the second housing 20 can extend into the first housing 10, for example, the first receiving space 1002. Furthermore, the second housing 20 can move towards the side closer to the first housing 10, extending into the first housing 10, for example, the first receiving space 1002, to achieve an adjustable relative displacement, or move away from the first housing 10, extending outward from the first housing 10, for example, the first receiving space 1002, to achieve an adjustable relative displacement.

[0048] In some embodiments, the second housing 20 may be slidably connected to the first housing 10.

[0049] In some embodiments, the second housing 20 may be fixedly connected to the first housing 10, but the adjustable relative displacement cannot be achieved. In some embodiments, the second housing 20 may be integrally formed with the first housing 10 by means of fixed connection or integral molding.

[0050] Understandably, the second housing 20 can cooperate with the first housing 10 to form a fastener 40. Of course, the fastener 40 is not limited to the first housing 10 and the second housing 20.

[0051] In some embodiments, the second housing 20 and the first housing 10 may both be disposed within the housing 101, for example, the receiving cavity 1001, and one of them may be fixedly connected to the housing 101.

[0052] In some embodiments, light entering the first housing 10, such as the first receiving space 1002, may also enter the second housing 20, such as the second receiving space 1003.

[0053] In some embodiments, the second housing 20 may extend out of the housing 101 (e.g., the receiving cavity 1001) from the opening 1041 or retract into the housing 101 (e.g., the receiving cavity 1001) to achieve adjustable relative displacement. This allows the first housing 10 to be positioned within the housing 101 (e.g., the receiving cavity 1001), and light to enter the first receiving space 1002 through the housing 101 or the display screen 102, where it is received by the camera optical system 30 to complete the image capture.

[0054] Please see Figure 4The camera optical system 30 may include a deflector 31 disposed on the first housing 10 for deflecting light, a first lens group 32 disposed on the first housing 10 for receiving and transmitting light deflected by the deflector 31, a second lens group 33 disposed on the first housing 10 for receiving and transmitting light transmitted through the first lens group 32, a third lens group 34 disposed on the first housing 10 for receiving and transmitting light transmitted through the second lens group 33, and an image receiver 35 disposed on the second housing 20 for receiving light transmitted through the third lens group 34. The distance between the first lens group 32 and the second lens group 33, and the distance between the third lens group 34 and the image receiver 35, are adjustable, thereby achieving at least 3x-5x or more optical magnification, thus improving image quality.

[0055] The deflector 31 is used to receive light entering the first housing 10, such as the first receiving space 1002, and deflect the light to the first lens group 32. In some embodiments, the deflector 31 may be disposed opposite to the light inlet 11 in order to receive light passing through the light inlet 11.

[0056] In some embodiments, the steering component 31 can be fixed to the first housing 10 by means of bonding, snap-fitting, welding, screwing, etc. Alternatively, the steering component 31 can be fixed to the first housing 10 by a mounting base. Furthermore, the mounting base can rotate relative to the first housing 10, for example, around two mutually perpendicular axes, to achieve optical image stabilization. In some embodiments, the steering component 31 can be disposed within the first housing 10, for example, the first receiving space 1002.

[0057] The deflector 31 can be a plane mirror (also known as a reflector), a prism (such as a reflecting prism), or other components that can change the direction of light propagation by reflection.

[0058] Please see Figure 5 and Figure 6 , Figure 5 for Figure 4 The illustrated embodiment shows a schematic diagram of the camera optical system 30 in some embodiments. Figure 6 for Figure 5The illustrated embodiment shows a schematic diagram of the structure of the deflector 31. The deflector 31 may be a reflecting prism. In some embodiments, the deflector 31 may be a triangular prism. In some embodiments, the deflector 31 may include an incident surface 311 for receiving light, a reflecting surface 312 for reflecting light, and an exiting surface 313 for emitting light. In some embodiments, the incident surface 311 may allow light to enter the deflector 31, for example, within the reflecting prism, and then be directed towards the reflecting surface 312. In some embodiments, the incident surface 311 may be positioned towards the light inlet 11. In some embodiments, the reflecting surface 312 may reflect the light entering the deflector 31, for example, within the reflecting prism, and may reflect it to the exiting surface 313. In some embodiments, the exiting surface 313 may be used to receive the light reflected from the reflecting surface 312 and allow the light to exit the deflector 31, for example, outside the reflecting prism, and be transmitted to the first lens group 32. In some embodiments, the exiting surface 313 may be positioned towards the first lens group 32.

[0059] Please see Figure 7 , Figure 7 for Figure 6 The illustrated embodiment shows a schematic diagram of the steering element 31 in other embodiments. The incident surface 311 may be convex. The exit surface 313 may be convex. In some embodiments, the convex surface is an outwardly convex aspherical surface. It is understood that either the incident surface 311 or the exit surface 313 may not be convex. Of course, in some embodiments, the reflecting surface 312 may also be convex. Please refer to... Figure 8 , Figure 8 for Figure 5 The diagram shows a structural schematic of the steering component 31 in some other embodiments. The steering component 31 can be a plane mirror (also known as a reflector).

[0060] Please see Figure 9 , Figure 9 for Figure 5 The illustrated embodiment shows a schematic diagram of the deflector 31 in other embodiments. The deflector 31 can be a reflecting prism, reflecting light through a surface such as a reflecting surface 312, so that the light is reflected without entering the deflector 31, for example, the reflecting prism, and can be reflected to the first lens group 32. In some embodiments, the reflecting surface 312 can be a concave surface. In some embodiments, the reflecting surface 312 can be disposed towards the light inlet 11 and the first lens group 32.

[0061] Please see Figure 4 The first lens group 32 has negative refractive power. The first lens group 32 is used to receive the light transmitted from the deflector 31 and transmit the light to the second lens group 33.

[0062] As is understood, in this specification, "a group with negative refractive power" means that the group as a whole has negative refractive power, that is, the ability to diverge light. Similarly, "a group with positive refractive power" means that the group as a whole has positive refractive power, that is, the ability to converge light. "A single lens with positive refractive power" has the same meaning as "positive lens." "A single lens with negative refractive power" has the same meaning as "negative lens." "A group of lenses" is not limited to a structure that includes multiple single lenses; it can also be a structure that includes only one single lens.

[0063] The first lens group 32 may include a first clamping member 321 disposed on the first housing 10 and a first lens unit 322 fixed on the first clamping member 321 and having negative refractive power. The focal point and optical center of the first lens unit 322 are located on the optical axis A. The first lens group 32 may be disposed within the first housing 10, for example, the first receiving space 1002. Alternatively, only the first lens unit 322 may be disposed at least partially within the first housing 10, for example, the first receiving space 1002. The first clamping member 321 may also be disposed within the first housing 10, for example, the first receiving space 1002.

[0064] In some embodiments, the first clamping member 321 may be referred to as the first moving member, and is movably connected to the first housing 10. In some embodiments, the first clamping member 321 can move under the drive of a driving mechanism. Furthermore, the driving mechanism may also be part of the first lens group 32. The driving mechanism can be an electromagnetic driving mechanism, or of course, a piezoelectric driving mechanism or a shape memory alloy driving mechanism, etc. Different driving mechanisms can be adopted according to requirements during actual production and assembly. In some embodiments, the first clamping member 321 can move along the optical axis A towards or away from the deflector 31 to achieve focusing or zooming.

[0065] In some embodiments, the first lens unit 322 may be fixed to the first clamping member 321 by means of adhesive bonding, welding or snap-fitting.

[0066] In some embodiments, the first lens unit 322 may include a plurality of lenses arranged side by side on the first clamping member 321 on the optical axis A, wherein the focal point and optical center of each lens are located on the optical axis A.

[0067] Please see Figure 5 The first lens unit 322 may include a first negative lens 323 and a first positive lens 324 arranged sequentially on the first clamping member 321 in the direction of light propagation (e.g., optical axis A).

[0068] In some embodiments, the side of the first negative lens 323 facing the steering member 31 is the light-receiving surface and is concave. In some embodiments, the side of the first negative lens 323 away from the steering member 31, i.e., the side facing the first positive lens 324, is the light-emitting surface and is concave. In some embodiments, in the first negative lens 323, the radius of curvature of the light-receiving surface is greater than the radius of curvature of the light-emitting surface (this specification only compares the numerical values ​​and does not involve the positive or negative sign of the values).

[0069] In some embodiments, the surface of the first positive lens 324 facing the first negative lens 323 is the light-receiving surface and is convex. In some embodiments, the surface of the first positive lens 324 away from the first negative lens 323, i.e., facing the second lens group 33, is the light-emitting surface and is concave. In some embodiments, the radius of curvature of the light-receiving surface of the first positive lens 324 is smaller than the radius of curvature of the light-emitting surface. In some embodiments, the radius of curvature of the light-receiving surface of the first positive lens 324 is larger than the radius of curvature of the light-emitting surface of the first negative lens 323.

[0070] Please see Figure 4 The second lens group 33 has positive refractive power. The second lens group 33 is used to receive light transmitted from the first lens group 32, such as the first positive lens 324, and to transmit the light to the third lens group 34.

[0071] The second lens group 33 may include a second clamping member 331 disposed on the first housing 10 and a second lens unit 332 fixed to the second clamping member 331 and having positive refractive power. The focal point and optical center of the second lens unit 332 are located on the optical axis A. The second lens group 33 may be disposed within the first housing 10, for example, the first receiving space 1002. Alternatively, only the second lens unit 332 may be disposed at least partially within the first housing 10, for example, the first receiving space 1002. Similarly, the second clamping member 331 may also be disposed within the first housing 10, for example, the first receiving space 1002.

[0072] In some embodiments, the second clamping member 331 may be referred to as the second moving member and is movably connected to the first housing 10. In some embodiments, the second clamping member 331 may move under the drive of a driving mechanism. Furthermore, the driving mechanism may also be part of the second lens group 33. In some embodiments, the second clamping member 331 may move along the optical axis A toward or away from the first lens group 32 to achieve focusing or zooming.

[0073] In some embodiments, the second lens unit 332 may be fixed to the second clamping member 331 by means of adhesive bonding, welding or snap-fitting.

[0074] In some embodiments, the second lens unit 332 may include a plurality of lenses arranged side by side on the second clamping member 331 on the optical axis A, wherein the focal point and optical center of each lens are located on the optical axis A.

[0075] Please see Figure 5 The second lens group 33 may include a second positive lens 333, a third positive lens 334 and a second negative lens 335 arranged sequentially on the second clamping member 331 in the direction of light propagation (e.g., optical axis A).

[0076] In some embodiments, the side of the second positive lens 333 facing the first lens group 32, such as the first positive lens 324, is the light-receiving surface and is convex. In some embodiments, the side of the second positive lens 333 away from the first lens group 32, such as the first positive lens 324, that is, the side facing the third positive lens 334, is the light-emitting surface and is convex. In some embodiments, in the second positive lens 333, the radius of curvature of the light-receiving surface is smaller than the radius of curvature of the light-emitting surface.

[0077] In some embodiments, the surface of the third positive lens 334 facing the second positive lens 333 is the light-receiving surface and is concave. In some embodiments, the surface of the third positive lens 334 away from the second positive lens 333, i.e., facing the second negative lens 335, is the light-emitting surface and is convex. In some embodiments, the radius of curvature of the light-receiving surface of the third positive lens 334 is greater than the radius of curvature of the light-emitting surface. In some embodiments, the radius of curvature of the light-receiving surface of the third positive lens 334 is greater than the radius of curvature of the light-emitting surface of the second positive lens 333.

[0078] In some embodiments, the surface of the second negative lens 335 facing the third positive lens 334 is the light-receiving surface and is concave. In some embodiments, the surface of the second negative lens 335 away from the third positive lens 334, i.e., facing the third lens group 34, is the light-emitting surface and is convex or flat. In some embodiments, the radius of curvature of the light-receiving surface of the second negative lens 335 is smaller than the radius of curvature of the light-emitting surface. In some embodiments, the radius of curvature of the light-receiving surface of the second negative lens 335 is smaller than the radius of curvature of the light-emitting surface of the third positive lens 334.

[0079] Please see Figure 4 The third lens group 34 has negative refractive power. The third lens group 34 is used to receive light transmitted from the second lens group 33, such as the second negative lens 335, and transmit the light to the image receiver 35.

[0080] The third lens group 34 may include a third clamping member 341 disposed on the first housing 10 and a third lens unit 342 fixed on the third clamping member 341 and having negative refractive power. The focal point and optical center of the third lens unit 342 are located on the optical axis A. The third lens group 34 may be disposed within the first housing 10, for example, the first receiving space 1002. Alternatively, only the third lens unit 342 may be disposed at least partially within the first housing 10, for example, the first receiving space 1002. Similarly, the third clamping member 341 may also be disposed within the first housing 10, for example, the first receiving space 1002.

[0081] In some embodiments, the third clamping member 341 may be referred to as the third moving member and is movably connected to the first housing 10. In some embodiments, the third clamping member 341 may move under the drive of a driving mechanism. Furthermore, the driving mechanism may also be part of the third lens group 34. In some embodiments, the third clamping member 341 may move along the optical axis A toward or away from the second lens group 33 to achieve focusing or zooming.

[0082] In some embodiments, the third lens unit 342 may be fixed to the third clamping member 341 by means of adhesive bonding, welding or snap-fitting.

[0083] In some embodiments, the third lens unit 342 may include a plurality of lenses arranged side by side on the third clamping member 341 on the optical axis A, wherein the focal point and optical center of each lens are located on the optical axis A.

[0084] Please see Figure 5 The third lens unit 342 may include a fourth positive lens 343 and a third negative lens 344 arranged sequentially on the third clamping member 341 in the direction of light propagation (e.g., optical axis A).

[0085] In some embodiments, the side of the fourth positive lens 343 facing the second lens group 33, such as the second negative lens 335, is the light-receiving surface and is concave. In some embodiments, the side of the fourth positive lens 343 away from the second lens group 33, such as the second negative lens 335, that is, the side facing the third negative lens 344, is the light-emitting surface and is convex.

[0086] In some embodiments, in the fourth positive lens 343, the radius of curvature of the light-receiving surface is greater than the radius of curvature of the light-emitting surface.

[0087] In some embodiments, the surface of the third negative lens 344 facing the fourth positive lens 343 is the light-receiving surface and is concave. In some embodiments, the surface of the third negative lens 344 away from the fourth positive lens 343, i.e., facing the image receiver 35, is the light-emitting surface and is convex. In some embodiments, the radius of curvature of the light-receiving surface of the third negative lens 344 is smaller than the radius of curvature of the light-emitting surface. In some embodiments, the radius of curvature of the light-receiving surface of the third negative lens 344 is smaller than the radius of curvature of the light-emitting surface of the fourth positive lens 343.

[0088] Please see Figure 4 An image receiver 35 is disposed on the second housing 20 and is used to receive light transmitted from the third lens group 34, such as the third negative lens 344. In some embodiments, the image receiver 35 may be disposed within the second housing 20, such as the second receiving space 1003. In some embodiments, the image receiver 35 may also be located on the optical axis A.

[0089] The image receiver 35 may be an image sensor such as a complementary metal-oxide-semiconductor (CMOS) photosensitive element or a charge-coupled device (CCD) photosensitive element, or other image sensors, or electronic components including an image sensor.

[0090] Please see Figure 4 The first lens group 32 and the second lens group 33 work together to adjust the distance between them.

[0091] In some embodiments, the first lens group 32, such as the first clamping member 321, moves relative to the first housing 10, thereby adjusting the distance between the first lens group 32 and the second lens group 33. Furthermore, in some embodiments, the second lens group 33, such as the second clamping member 331, may be fixed to the first housing 10. Furthermore, in some embodiments, the second clamping member 331 may be omitted. The second lens group 33, such as the second lens unit 332, is directly fixed to the first housing 10.

[0092] In some embodiments, the second lens group 33, such as the second clamping member 331, moves relative to the first housing 10, thereby adjusting the distance between the first lens group 32 and the second lens group 33. Furthermore, in some embodiments, the first lens group 32, such as the first clamping member 321, may be fixed to the first housing 10. Furthermore, in some embodiments, the first clamping member 321 may be omitted. The first lens group 32, such as the first lens unit 322, is directly fixed to the first housing 10.

[0093] Please see Figure 10 , Figure 10for Figure 4 The diagram shows a structural schematic of the periscope camera 103 in another embodiment. The second lens group 33 may not be disposed on the first housing 10, but rather on the second housing 20, and may cooperate with the second housing 20 in a manner that mates with the first housing 10. For details, please refer to [reference needed]. Figure 4 The illustrated embodiment.

[0094] Please see Figure 10 The first lens group 32 and the second lens group 33 work together to adjust the distance between them.

[0095] In some embodiments, the first lens group 32, for example, the first clamping member 321, moves relative to the first housing 10, thereby adjusting the distance between the first lens group 32 and the second lens group 33. In some embodiments, the second lens group 33, for example, the second clamping member 331, moves relative to the second housing 20, thereby adjusting the distance between the first lens group 32 and the second lens group 33.

[0096] In some embodiments, the first housing 10 and the second housing 20 move in coordination with each other, indirectly driving the first lens group 32 and the second lens group 33 to move in coordination with each other, thereby adjusting the distance between the first lens group 32 and the second lens group 33.

[0097] Furthermore, in some embodiments, the first lens group 32, such as the first clamping member 321, may be fixed to the first housing 10. Furthermore, in some embodiments, the first clamping member 321 may be omitted. The first lens group 32, such as the first lens unit 322, is directly fixed to the first housing 10.

[0098] Furthermore, in some embodiments, the second lens group 33, such as the second clamping member 331, may be fixed to the second housing 20. Furthermore, in some embodiments, the second clamping member 331 may be omitted. The second lens group 33, such as the second lens unit 332, is directly fixed to the second housing 20.

[0099] Understandably, the first lens group 32 may not be disposed on the first housing 10, but on the second housing 20, and may cooperate with the second housing 20 in a manner that mates with the first housing 10. For details, please refer to [reference needed]. Figure 4 The embodiment shown. The first lens group 32 and the second lens group 33 cooperate to adjust the distance between the first lens group 32 and the second lens group 33.

[0100] In some embodiments, the first lens group 32, such as the first clamping member 321, moves relative to the second housing 20, thereby adjusting the distance between the first lens group 32 and the second lens group 33. Furthermore, in some embodiments, the second lens group 33, such as the second clamping member 331, may be fixed to the second housing 20. Furthermore, in some embodiments, the second clamping member 331 may be omitted. The second lens group 33, such as the second lens unit 332, is directly fixed to the second housing 20.

[0101] In some embodiments, the second lens group 33, such as the second clamping member 331, moves relative to the second housing 20, thereby adjusting the distance between the first lens group 32 and the second lens group 33. Furthermore, in some embodiments, the first lens group 32, such as the first clamping member 321, may be fixed to the second housing 20. Furthermore, in some embodiments, the first clamping member 321 may be omitted. The first lens group 32, such as the first lens unit 322, is directly fixed to the second housing 20.

[0102] Please see Figure 4 The third lens group 34 works in conjunction with the image receiver 35, and the distance between the third lens group 34 and the image receiver 35 can be adjusted.

[0103] In some embodiments, the third lens group 34, for example, the third clamping member 341, moves relative to the first housing 10, thereby adjusting the distance between the third lens group 34 and the image receiver 35.

[0104] In some embodiments, the first housing 10 and the second housing 20 cooperate to move, indirectly driving the third lens group 34 and the image receiver 35 to move in coordination, thereby adjusting the distance between the third lens group 34 and the image receiver 35. Furthermore, in some embodiments, the third lens group 34, for example, a third clamping member 341, may be fixed to the first housing 10. Furthermore, in some embodiments, the third clamping member 341 may be omitted. The third lens group 34, for example, a third lens unit 342, is directly fixed to the first housing 10.

[0105] Please see Figure 10 The third lens group 34 may not be disposed on the first housing 10, but on the second housing 20, and may be disposed in a manner that mates with the first housing 10 and the second housing 20. For details, please refer to [reference needed]. Figure 4 The illustrated embodiment.

[0106] Please see Figure 10 The third lens group 34 cooperates with the image receiver 35, and the distance between the third lens group 34 and the image receiver 35 can be adjusted. In some embodiments, the third lens group 34, for example, the third clamping member 341, moves relative to the second housing 20, thereby adjusting the distance between the third lens group 34 and the image receiver 35.

[0107] Understandably, the distances between the first lens group 32 and the second lens group 33, and between the third lens group 34 and the image receiver 35, are adjustable, enabling the periscope camera 103 to be tuned and focused, thereby achieving at least 3x-5x or more optical magnification, thus improving image quality. In some embodiments, when adjusting the distance between the first lens group 32 and the second lens group 33, the distance between the third lens group 34 and the image receiver 35 is also adjusted. In some embodiments, when the distance between the first lens group 32 and the second lens group 33 is reduced, the distance between the third lens group 34 and the image receiver 35 is increased; in some embodiments, when the distance between the first lens group 32 and the second lens group 33 is increased, the distance between the third lens group 34 and the image receiver 35 is decreased.

[0108] Please see Figure 11 , Figure 11 for Figure 1 The illustrated embodiment shows a schematic diagram of the electronic device 100 in other embodiments. The electronic device 100 may include a first sub-housing 106 with a first housing 10, a second sub-housing 107 with a second housing 20 and sliding relative to the first sub-housing 106, and a display screen 102 disposed on the first sub-housing 106 and the second sub-housing 107. The second sub-housing 107 can slide relative to the first sub-housing 106, and can partially slide into the first sub-housing 106 for folding, or partially slide out of the first sub-housing 106 for unfolding. The first sub-housing 106 and the second sub-housing 107 can be used to support and mount electronic components such as a circuit board (on which control units such as processors are disposed), a battery, a camera, or a sensor. The display screen 102 has bendable properties and can also be called a flexible display screen, which can be used to electrically connect with electronic components such as the circuit board (on which control units such as processors are disposed) and the battery to display information such as image information and text information. When the display screen 102 slides relative to the first sub-casing 106 and the second sub-casing 107, it can partially slide into or out of the second sub-casing 107.

[0109] Understandably, the first sub-casing 106 and the second sub-casing 107 cooperate to form the casing 101. Of course, the casing 101 is not limited to the first sub-casing 106 and the second sub-casing 107, but may also include others.

[0110] In some embodiments, the first sub-housing 106 may also slide relative to the second sub-housing 107, and may partially slide into the second sub-housing 107 to achieve folding, or may partially slide out of the second sub-housing 107 to achieve unfolding. Furthermore, in some embodiments, when the first sub-housing 106 and the second sub-housing 107 slide relative to each other, the display screen 102 may partially slide into or out of the first sub-housing 106.

[0111] In some embodiments, when the first sub-housing 106 and the second sub-housing 107 slide relative to each other, the first housing 10 and the second housing 20 slide relative to each other, thereby achieving an adjustable relative displacement adjustment.

[0112] In some embodiments, the first housing 10 may be fixedly connected to the first sub-housing 106 or formed into an integral structure by means of integral injection molding.

[0113] In some embodiments, the structure of the camera optical system 30 disposed on the first housing 10 is disposed on the first sub-housing 106 through the first housing 10. Furthermore, in some embodiments, the first housing 10 may be omitted, such that the structure of the camera optical system 30 disposed on the first housing 10 cooperates with the first sub-housing 106 through a cooperation manner with the first housing 10.

[0114] In some embodiments, the second housing 20 may be fixedly connected to the second sub-housing 107 or formed into an integral structure by means of integral injection molding.

[0115] In some embodiments, the structure of the camera optical system 30 disposed on the second housing 20 is disposed on the second sub-housing 107 through the second housing 20. Furthermore, in some embodiments, the second housing 20 may be omitted, such that the structure of the camera optical system 30 disposed on the second housing 20 engages with the second sub-housing 107 through a mating manner with the second housing 20.

[0116] The periscope camera 103 in this application can provide a longer optical path for zooming without changing the internal stacking volume of the electronic device 100, covering a wider focal length more suitable for everyday photography. It can provide users with a superior photography and video recording experience without significantly impacting the phone's stacking requirements. For example, higher zoom magnification (wider focal length). For example, the clearest possible image can be captured from any position within the covered focal length. For example, a more seamless and versatile video recording experience (like jelly / Hitchcock zoom) is possible with continuous optical zoom.

[0117] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A camera optical system, characterized in that, include: A deflector, used to redirect light rays; The first lens group has negative refractive power and is used to receive the light rays deflected by the deflector and to transmit the light rays. The second lens group has positive refractive power and is used to receive the light transmitted through the first lens group and transmit the light. The third lens group has negative refractive power and is used to receive the light transmitted through the second lens group and transmit the light. as well as An image receiver is configured to receive light transmitted through the third lens group, wherein the distance between the first lens group and the second lens group and the distance between the third lens group and the image receiver are configured to be adjustable; When the distance between the first lens group and the second lens group is reduced, the distance between the third lens group and the image receiver is increased; Alternatively, when the distance between the first lens group and the second lens group is increased, the distance between the third lens group and the image receiver is decreased; The first lens group includes a first negative lens and a first positive lens arranged sequentially in the direction of light propagation; the light-receiving surface of the first negative lens is concave, and the light-emitting surface is concave; in the first negative lens, the radius of curvature of the light-receiving surface is greater than the radius of curvature of the light-emitting surface. The light-receiving surface of the first positive lens is convex, and the light-emitting surface is concave. In the first positive lens, the radius of curvature of the light-receiving surface is smaller than the radius of curvature of the light-emitting surface. The radius of curvature of the light-receiving surface of the first positive lens is larger than the radius of curvature of the light-emitting surface of the first negative lens. The second lens group includes a second positive lens, a third positive lens, and a second negative lens arranged sequentially in the direction of light propagation; the light-receiving surface of the second positive lens is convex, and the light-emitting surface is convex; in the second positive lens, the radius of curvature of the light-receiving surface is smaller than the radius of curvature of the light-emitting surface. The light-receiving surface of the third positive lens is concave, and the light-emitting surface is convex. In the third positive lens, the radius of curvature of the light-receiving surface is greater than the radius of curvature of the light-emitting surface. The radius of curvature of the light-receiving surface of the third positive lens is greater than the radius of curvature of the light-emitting surface of the second positive lens. The light-receiving surface of the second negative lens is concave, and the light-emitting surface is convex. In the second negative lens, the radius of curvature of the light-receiving surface is smaller than the radius of curvature of the light-emitting surface. The radius of curvature of the light-receiving surface of the second negative lens is smaller than the radius of curvature of the light-emitting surface of the third positive lens. The third lens group includes a fourth positive lens and a third negative lens arranged sequentially in the direction of light propagation; the light-receiving surface of the fourth positive lens is concave and the light-emitting surface is convex; in the fourth positive lens, the radius of curvature of the light-receiving surface is greater than the radius of curvature of the light-emitting surface. The light-receiving surface of the third negative lens is concave, and the light-emitting surface is convex. In the third negative lens, the radius of curvature of the light-receiving surface is smaller than the radius of curvature of the light-emitting surface. The radius of curvature of the light-receiving surface of the third negative lens is smaller than the radius of curvature of the light-emitting surface of the fourth positive lens.

2. A periscope camera, characterized in that, include: Fasteners; as well as The camera optical system of claim 1, wherein the camera optical system is disposed on the fixing member.

3. The periscope camera according to claim 2, characterized in that, At least one of the first lens group and the second lens group is slidably connected to the fixing member to slide in the direction of light propagation, and the third lens group is slidably connected to the fixing member to propagate in the direction of light propagation.

4. The periscope camera according to claim 2, characterized in that, The steering component includes a reflecting prism, the reflecting prism comprising: An incident surface is used to receive the light rays and allow the light rays to enter the reflecting prism. A reflecting surface for reflecting light rays entering the reflecting prism; and The exit surface is used to receive the light reflected from the reflective surface and to allow the light to exit the reflective prism and be transmitted to the first lens group.

5. The periscope camera according to claim 4, characterized in that, One of the incident surface and the exit surface is a convex surface.

6. The periscope camera according to claim 4, characterized in that, One of the incident surface and the exit surface is an outwardly convex aspherical surface.

7. An electronic device, characterized in that, include: chassis; as well as The periscope camera according to any one of claims 2-6 is disposed on the housing.

8. An electronic device, characterized in that: The housing includes a first sub-housing and a second sub-housing slidably connected to the first sub-housing; The camera optical system of claim 1, wherein the steering component and the first lens group are disposed on the first sub-house, the second lens group and the image receiver are disposed on the second sub-house, the third lens group is slidably connected to the second sub-house, the first sub-house and the second sub-house are configured to adjust the distance between the first lens group and the second lens group relative to each other, and when the distance between the first lens group and the second lens group is adjusted, the third lens group adjusts the distance between the third lens group and the image receiver relative to the second sub-house.

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