Camera optical system, periscopic camera and electronic equipment

Abstract

The invention discloses a camera optical system, a periscopic camera and electronic equipment, and relates to the technical field of intelligent equipment. According to the invention, the steering part is used for steering the light; the first lens group has negative refractive power and is used for receiving the light rays steered by the steering part and transmitting the light rays; the second lens group has positive refractive power and is used for receiving the light rays transmitted by the first lens group and transmitting the light rays; the third lens group has negative refractive power and is used for receiving the light rays transmitted by the second lens group and transmitting the light rays; the image receiving part is used for receiving light rays penetrating through the third lens group, and the distance between the first lens group and the second lens group and the distance between the third lens group and the image receiving part are configured to be adjustable. The distance between the first lens group and the second lens group and the distance between the third lens group and the image receiving part are mutually matched and adjustable, so that more than five times of optical amplification can be realized, and the imaging quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent devices, and in particular to a camera optical system, a periscope camera and an electronic device. Background Art

[0002] Currently, the telephoto modules of mobile phones or mobile terminals usually adopt fixed-focus modules, such as equivalent to 50mm, 75mm, 125mm, etc. The inventor believes that it is impossible to achieve optical magnification of more than 5 times, and the image quality is greatly reduced. Summary of the invention

[0003] On one hand, the present application provides a camera optical system, comprising:

[0004] A deflection member, used for deflecting light;

[0005] A first lens group has a negative refractive power and is used to receive the light deflected by the deflection member and transmit the light;

[0006] a second lens group having positive refractive power, for receiving the light transmitted through the first lens group and transmitting the light;

[0007] a third lens group having negative refractive power, for receiving the light transmitted through the second lens group and transmitting the light; and

[0008] The image receiving element is used to receive the light transmitted through 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 element are configured to be adjustable.

[0009] On one hand, the present application provides a periscope camera, including:

[0010] Fixings; and

[0011] The camera optical system described above is arranged on the fixing member.

[0012] On one hand, the present application provides an electronic device, including:

[0013] Housing; and

[0014] The periscope camera described above is arranged on the casing.

[0015] On one hand, the present application provides an electronic device, including:

[0016] A housing, comprising a first sub-housing and a second sub-housing slidably connected to the first sub-housing;

[0017] In the camera optical system described above, the steering member and the first lens group are arranged on the first sub-housing, the second lens group and the image receiving member are arranged on the second sub-housing, the third lens group is slidably connected to the second sub-housing, and the first sub-housing and the second sub-housing are configured to relatively slide to adjust the distance between the first lens group and the second lens group, and when the distance between the first lens group and the second lens group is adjusted, the third lens group slides relative to the second sub-housing to adjust the distance between the third lens group and the image receiving member.

[0018] In the present 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 cooperating and adjusting the distance between the first lens group and the second lens group and the distance between the third lens group and the image receiving element, optical magnification of more than 5 times can be achieved, thereby improving the imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. 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 creative work.

[0020] Figure 1 An exploded view of an electronic device in some embodiments of the present application;

[0021] Figure 2 for Figure 1 Schematic diagram of the use of the electronic device in some embodiments of the illustrated embodiment;

[0022] Figure 3 for Figure 1 A schematic diagram of the external structure of a periscope camera in some embodiments of the embodiment shown;

[0023] Figure 4 for Figure 3 A schematic diagram of the structure of a periscope camera in some embodiments of the embodiment shown;

[0024] Figure 5 for Figure 4 A schematic diagram of the structure of the camera optical system in some embodiments of the embodiment shown;

[0025] Figure 6 for Figure 5 A schematic structural diagram of a steering member in the illustrated embodiment;

[0026] Figure 7 for Figure 6A schematic diagram of the structure of the steering member in the illustrated embodiment in other embodiments;

[0027] Figure 8 for Figure 5 A schematic diagram of the structure of the steering member in the illustrated embodiment in other embodiments;

[0028] Fig. 9 for Figure 5 A schematic diagram of the structure of the steering member in the illustrated embodiment in other embodiments;

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

[0030] Fig.11 for Figure 1 The schematic diagram of the structure of the electronic device in the illustrated embodiment in other embodiments. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

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

[0033] See also Figure 1 , Figure 1 1 is an exploded view of an electronic device in some embodiments of the present application. The electronic device 100 may be an electronic device or a mobile terminal, or other electronic device with display and camera functions, specifically a mobile phone, a tablet computer, a laptop computer, a smart bracelet, a smart watch, a smart helmet or smart glasses, etc. The electronic device 100 in the embodiment of the present application is described by taking a mobile phone as an example. It can be understood that the specific form of the electronic device 100 can also be other, which is not limited here.

[0034] As used herein, "electronic devices" (which may also be referred to as "terminals" or "mobile terminals" or "electronic devices") include, but are not limited to, devices configured to receive / send communication signals via a wireline connection (e.g., via a public switched telephone network (PSTN), a digital subscriber line (DSL), digital cable, a direct cable connection, and / or another data connection / network) and / or via a wireless interface (e.g., for a cellular network, a wireless local area network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and / or another communication terminal). Communication terminals configured to communicate via a wireless interface may be referred to as "wireless communication terminals," "wireless terminals," or "mobile terminals." 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, organizers, calendars, and / or global positioning system (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

[0035] See also Figure 1 , the electronic device 100 may include a housing 101, a display screen 102 disposed on the housing 101, and a periscope camera 103 disposed in the housing 101. Among them, the housing 101 is the outer shell of the electronic device 100, which can carry and install the display screen 102 and the periscope camera 103, and can also play a role in protecting the electronic components inside the housing 101 (such as a motherboard, a battery, a sensor, a button or a periscope camera 103, etc.). The display screen 102 can be used to display images and can be used to display information. The periscope camera 103 can be used as a front camera or a rear camera for video recording. The periscope camera 103 can achieve at least 3 times to 5 times or more optical magnification, so that the imaging quality is improved.

[0036] See also Figure 1 , the housing 101 may include a middle frame 104 and a cover plate 105 connected to the middle frame 104. The middle frame 104 is connected to the cover plate 105 to form a receiving cavity 1001 for accommodating electronic components inside the electronic device 100. In some embodiments, the middle frame 104, for example, a frame may be provided with an opening 1041 connected to the receiving cavity 1001 to cooperate with the periscope camera 103. In some embodiments, the cover plate 105 may be connected and fixed to the middle frame 104 on one side of the middle frame 104. In some embodiments, the middle frame 104 may be integrally injection molded or connected and fixed with the cover plate 105 to form an integral structure.

[0037] See also Figure 1The display screen 102 can be electrically connected to electronic components such as a battery and / or a processor (set on the mainboard) inside the electronic device 100 to display information. In some embodiments, the display screen 102 can be set on the middle frame 104 and arranged opposite to the cover plate 105 so that the accommodating cavity 1001 is located between the display screen 102 and the cover plate 105. In some embodiments, the display screen 102 is located on a side of the middle frame 104 away from the cover plate 105.

[0038] See also Figure 1 The periscope camera 103 can be installed in the housing 101, such as the accommodating cavity 1001.

[0039] See also Figure 2 , Figure 2 for Figure 1 Schematic diagram of the use of the electronic device 100 in some embodiments of the illustrated embodiment. The periscope camera 103 can extend from the housing 101, such as the accommodating cavity 1001, or retract into the housing 101, such as the accommodating cavity 1001. For example, the periscope camera 103 can extend from the housing 101, such as the accommodating cavity 1001, and the periscope camera 103 can be converted from a first state in which at least partly or wholly is placed in the housing 101, such as the accommodating cavity 1001, to a second state in which at least partly or wholly is placed outside the housing 101, such as the accommodating cavity 1001. For example, the periscope camera 103 can be retracted into the housing 101, such as the accommodating cavity 1001, and the periscope camera 103 can be converted from a second state in which at least partly or wholly is placed outside the housing 101, such as the accommodating cavity 1001, to a first state in which at least partly or wholly is placed in the housing 101, such as the accommodating cavity 1001.

[0040] It should be noted that the terms "first", "second", etc., herein and hereinafter are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" or "second" may explicitly or implicitly include one or more of the said features.

[0041] In one embodiment, the periscope camera 103 may be disposed at a position corresponding to the opening 1041 in the housing 101, such as the accommodating cavity 1001, so that the periscope camera 103 can extend or retract from the opening 1041. In one embodiment, the periscope camera 103 may be disposed at a position corresponding to the opening 1041 of the middle frame 104, such as the frame, so that the periscope camera 103 can extend or retract from the opening 1041. In one embodiment, the periscope camera 103 may be disposed at a position corresponding to the opening 1041 of the cover plate 105, so that the periscope camera 103 can extend or retract from the opening 1041. In some embodiments, the periscope camera 103 may slide from the opening 1041, thereby converting from the first state to the second state, or from the first state to the second state.

[0042] It can be understood that the periscope camera 103 can also be only disposed in the housing 101, such as the accommodating cavity 1001, without extending out of the housing 101, such as the accommodating cavity 1001.

[0043] See also Figure 3 and Figure 4 , Figure 3 for Figure 1 The schematic diagram of the external structure of the periscope camera 103 in some embodiments shown in the embodiment is as follows, Figure 4 for Figure 3 The illustrated embodiment is a schematic diagram of the structure of the periscope camera 103 in some embodiments. The periscope camera 103 may be a periscope telephoto camera, which can reduce the height of the camera by changing the propagation path of light compared to a vertical camera, thereby reducing the overall thickness of the electronic device 100.

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

[0045] See also Figure 3 and Figure 4, the first shell 10 may be a shell structure or a frame structure. In some embodiments, the first shell 10 may be surrounded by a first receiving space 1002 to cooperate with the camera optical system 30. In some embodiments, the first shell 10 may have a light inlet 11, which is in communication with the first receiving space 1002, so that light can 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 shell 10 may extend from the opening 1041 to the housing 101, such as the accommodating cavity 1001, so that light enters the first receiving space 1002 and is received by the camera optical system 30 to complete the image capture. In some embodiments, the first shell 10 may extend from the opening 1041 to the housing 101, such as the accommodating cavity 1001, so that the light inlet 11 is located outside the housing 101, such as the accommodating cavity 1001, so that light passes through the light inlet 11 and enters the first receiving space 1002 and is received by the camera optical system 30 to complete the image capture. In some embodiments, the first housing 10 is in the housing 101, such as the accommodating cavity 1001, and light passes through the housing 101 or the display screen 102 into the first receiving space 1002, and is received by the camera optical system 30 to complete the image capture. In some embodiments, the first housing 10 is in the housing 101, such as the accommodating cavity 1001, and light passes through the housing 101 or the display screen 102, and then passes through the light inlet 11 into the first receiving space 1002, and is received by the camera optical system 30 to complete the image capture.

[0046] See also 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 in the housing 101, such as the accommodating cavity 1001. In some embodiments, the second housing 20 may be surrounded by a second receiving space 1003, which is communicated with the first receiving space 1002 and further cooperates with the camera optical system 30.

[0047] In some embodiments, the second housing 20 is provided with a second receiving space 1003, so that the first housing 10 can extend into the second housing 20, such as the second receiving space 1003. Further, the first housing 10 can move toward the side close to the second housing 20, extend into the second housing 20, such as the second receiving space 1003, to adjust the adjustable relative displacement, or move toward the side away from the second housing 20, extend out of the second housing 20, such as the second receiving space 1003, to adjust the adjustable relative displacement. Of course, the second housing 20 can also extend into the first housing 10, such as the first receiving space 1002. Further, the second housing 20 can move toward the side close to the first housing 10, extend into the first housing 10, such as the first receiving space 1002, to adjust the adjustable relative displacement, or move toward the side away from the first housing 10, extend out of the first housing 10, such as the first receiving space 1002, to adjust the 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 adjusted. In some embodiments, the second housing 20 may be fixedly connected to the first housing 10 or integrally formed to form an integral structure.

[0050] It can be understood that the second shell 20 can cooperate with the first shell 10 to form the fixing member 40 . Of course, the fixing member 40 is not limited to the first shell 10 and the second shell 20 .

[0051] In some embodiments, the second shell 20 and the first shell 10 may both be disposed in the housing 101 , such as the accommodating cavity 1001 , and one of the second shell 20 and the first shell 10 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 can extend from the opening 1041 into the housing 101, such as the accommodating cavity 1001, or retract into the housing 101, such as the accommodating cavity 1001, to achieve adjustable relative displacement. Thus, the first housing 10 can be in the housing 101, such as the accommodating cavity 1001, and light can pass through the housing 101 or the display screen 102 into the first receiving space 1002, and is received by the camera optical system 30 to complete the image capture.

[0054] See also Figure 4The camera optical system 30 may include a steering member 31 disposed on the first housing 10 and used to redirect light, a first lens group 32 disposed on the first housing 10 and used to receive and transmit the light redirected by the steering member 31, a second lens group 33 disposed on the first housing 10 and used to receive and transmit the light transmitted through the first lens group 32, a third lens group 34 disposed on the first housing 10 and used to receive and transmit the light transmitted through the second lens group 33, and an image receiving member 35 disposed on the second housing 20 and used to receive the 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 receiving member 35 are both adjustable, thereby achieving at least 3-5 times or more optical magnification, so that the imaging quality is improved.

[0055] The deflection member 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 deflection member 31 may be disposed opposite to the light inlet 11 to receive light passing through the light inlet 11.

[0056] In some embodiments, the steering member 31 can be fixed to the first housing 10 by bonding, clamping, welding, screwing, etc. Of course, the steering member 31 can also be fixed to the first housing 10 by a mounting seat. Further, the mounting seat can rotate relative to the first housing 10, for example, around two mutually perpendicular rotation axes, to achieve an optical image stabilization function. In some embodiments, the steering member 31 can be disposed in the first housing 10, for example, in the first receiving space 1002.

[0057] The deflection element 31 may be a plane mirror (also called a reflector), a prism (such as a reflective prism), or other element that can change the propagation direction of light by reflection.

[0058] See also Figure 5 and Figure 6 , Figure 5 for Figure 4 The schematic diagram of the structure of the camera optical system 30 in some embodiments shown in the embodiment, Figure 6 for Figure 5A schematic diagram of the structure of the steering member 31 in the illustrated embodiment. The steering member 31 may be a reflective prism. In some embodiments, the steering member 31 may be a triangular prism. In some embodiments, the steering member 31 may include an incident surface 311 for receiving light, a reflective surface 312 for reflecting light, and an exit surface 313 for emitting light. In some embodiments, the incident surface 311 may allow light to be incident into the steering member 31, such as a reflective prism, and to be emitted toward the reflective surface 312. In some embodiments, the incident surface 311 may be disposed toward the light inlet 11. In some embodiments, the reflective surface 312 may reflect light entering the steering member 31, such as a reflective prism, and may be reflected toward the exit surface 313. In some embodiments, the exit surface 313 may be used to receive light reflected from the reflective surface 312, and allow the light to be emitted to the steering member 31, such as the reflective prism, and transmitted to the first lens group 32. In some embodiments, the exit surface 313 may be disposed toward the first lens group 32.

[0059] See also Figure 7 , Figure 7 for Figure 6 The schematic diagram of the structure of the steering member 31 in other embodiments of the embodiment shown. The incident surface 311 may be a convex surface. The exit surface 313 may be a convex surface. In some embodiments, the convex surface is an aspheric surface that bulges outward. It can be understood that one of the incident surface 311 and the exit surface 313 may not be a convex surface. Of course, in some embodiments, the reflective surface 312 may also be a convex surface. Please refer to Figure 8 , Figure 8 for Figure 5 The schematic diagram of the structure of the steering member 31 in other embodiments of the embodiment shown in the figure. The steering member 31 can be a plane mirror (also called a reflector).

[0060] See also Fig. 9 , Fig. 9 for Figure 5 Schematic diagram of the structure of the steering member 31 in other embodiments. The steering member 31 can be a reflective prism, which reflects light through a surface such as a reflective surface 312, so that the light is reflected without entering the steering member 31 such as a reflective prism, and can be reflected to the first lens group 32. In some embodiments, the reflective surface 312 can be a concave surface. In some embodiments, the reflective surface 312 can be arranged toward the light inlet 11 and the first lens group 32.

[0061] See also Figure 4 The first lens group 32 has a negative refractive power. The first lens group 32 is used to receive the light transmitted by the deflection member 31 and transmit the light to the second lens group 33.

[0062] It can be understood that the "group of ~ with negative refractive power" in this specification means that the group as a whole has negative refractive power, that is, it has the ability to diverge light. Similarly, the "group of ~ with positive refractive power" means that the group as a whole has positive refractive power, that is, it has the ability to converge light. "Single lens with positive refractive power" has the same meaning as "positive lens". "Single lens with negative refractive power" has the same meaning as "negative lens". "~ lens group" is not limited to a structure including multiple single lenses, but can also be set to a structure including 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 a negative refractive power. The focus and optical center of the first lens unit 322 are located on the optical axis A. The first lens group 32 may be disposed in the first housing 10, such as the first receiving space 1002. Of course, only the first lens unit 322 may be at least partially disposed in the first housing 10, such as the first receiving space 1002. Of course, the first clamping member 321 may also be disposed in the first housing 10, such as the first receiving space 1002.

[0064] In some embodiments, the first clamping member 321 can be referred to as a first moving member, and is movably connected to the first housing 10. In some embodiments, the first clamping member 321 can be moved under the drive of a driving mechanism. Furthermore, the driving mechanism can also be a part of the first lens group 32. The driving mechanism can be an electromagnetic driving mechanism, and of course, it can also be a piezoelectric driving mechanism or a memory alloy driving mechanism, etc. In the actual production and assembly process, different driving mechanisms can be used according to requirements. In some embodiments, the first clamping member 321 can move on the optical axis A to one side close to or away from the steering member 31 to achieve focusing or zooming.

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

[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, and the focus and the optical center of each lens are located on the optical axis A.

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

[0068] In some embodiments, the surface of the first negative lens 323 facing the steering member 31 is a light receiving surface, and is a concave surface. In some embodiments, the surface of the first negative lens 323 away from the steering member 31, that is, the surface facing the first positive lens 324, is a light emitting surface, and is a concave surface. 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 (only the numerical values ​​are compared in this specification, and the positive and negative values ​​are not involved).

[0069] In some embodiments, the surface of the first positive lens 324 facing the first negative lens 323 is a light receiving surface, and is a convex surface. In some embodiments, the surface of the first positive lens 324 facing the second lens group 33 away from the first negative lens 323 is a light emitting surface, and is a concave surface. In some embodiments, in the first positive lens 324, the radius of curvature of the light receiving surface 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] See also Figure 4 The second lens group 33 has positive refractive power. The second lens group 33 is used to receive the light transmitted from the first lens group 32 , such as the first positive lens 324 , and 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 on the second clamping member 331 and having a positive refractive power. The focus and optical center of the second lens unit 332 are located on the optical axis A. The second lens group 33 may be disposed in the first housing 10, such as the first receiving space 1002. Of course, only the second lens unit 332 may be at least partially disposed in the first housing 10, such as the first receiving space 1002. Of course, the second clamping member 331 may also be disposed in the first housing 10, such as the first receiving space 1002.

[0072] In some embodiments, the second clamping member 331 may be referred to as a second moving member, and may be movably connected to the first housing 10. In some embodiments, the second clamping member 331 may be moved under the drive of a driving mechanism. The driving mechanism may also be a part of the second lens group 33. In some embodiments, the second clamping member 331 may be moved on the optical axis A toward or away from the side of 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 adhesive bonding, welding or clamping.

[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, and the focus and the optical center of each lens are located on the optical axis A.

[0075] See also 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 which are sequentially arranged on the second clamping member 331 in the propagation direction of the light (eg, the optical axis A).

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

[0077] In some embodiments, the surface of the third positive lens 334 facing the second positive lens 333 is a light receiving surface, and is a concave surface. In some embodiments, the surface of the third positive lens 334 facing the second negative lens 335 away from the second positive lens 333 is a light emitting surface, and is a convex surface. In some embodiments, in the third positive lens 334, the radius of curvature of the light receiving surface 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 a light receiving surface, and is a concave surface. In some embodiments, the surface of the second negative lens 335 facing the third lens group 34 away from the third positive lens 334 is a light emitting surface, and is a convex surface or a plane. In some embodiments, in the second negative lens 335, the radius of curvature of the light receiving surface 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] See also Figure 4 The third lens group 34 has negative refractive power. The third lens group 34 is used to receive the light transmitted from the second lens group 33 , such as the second negative lens 335 , and transmit the light to the image receiving element 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 a negative refractive power. The focus and optical center of the third lens unit 342 are located on the optical axis A. The third lens group 34 may be disposed in the first housing 10, such as the first receiving space 1002. Of course, only the third lens unit 342 may be at least partially disposed in the first housing 10, such as the first receiving space 1002. Of course, the third clamping member 341 may also be disposed in the first housing 10, such as the first receiving space 1002.

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

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

[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, and the focus and the optical center of each lens are located on the optical axis A.

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

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

[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 a light receiving surface, and is a concave surface. In some embodiments, the surface of the third negative lens 344 facing the image receiving element 35 away from the fourth positive lens 343 is a light emitting surface, and is a convex surface. In some embodiments, in the third negative lens 344, the radius of curvature of the light receiving surface 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] See also Figure 4 The image receiving member 35 is disposed on the second housing 20 to receive light transmitted from the third lens group 34, such as the third negative lens 344. In some embodiments, the image receiving member 35 can be disposed in the second housing 20, such as the second receiving space 1003. In some embodiments, the image receiving member 35 can also be located on the optical axis A.

[0089] The image receiving element 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 may be other image sensors, or an electronic component including an image sensor.

[0090] See also Figure 4 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.

[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, can be fixed on the first housing 10. Furthermore, in some embodiments, the second clamping member 331 can be omitted. The second lens group 33, such as the second lens unit 332, is directly fixed on 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, can be fixed on the first housing 10. Furthermore, in some embodiments, the first clamping member 321 can be omitted. The first lens group 32, such as the first lens unit 322, is directly fixed on the first housing 10.

[0093] See also Fig.10 , Fig.10for Figure 4 The second lens group 33 may not be disposed on the first housing 10, but may be disposed on the second housing 20, and may be matched with the second housing 20 in a matching relationship with the first housing 10. For details, please refer to Figure 4 The embodiment shown.

[0094] See also Fig.10 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.

[0095] In some embodiments, the first lens group 32, such as the first clamping member 321, moves relative to the first housing 10 to adjust the distance between the first lens group 32 and the second lens group 33. In some embodiments, the second lens group 33, such as the second clamping member 331, moves relative to the second housing 20 to adjust 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, can be fixed on the first housing 10. Furthermore, in some embodiments, the first clamping member 321 can be omitted. The first lens group 32, such as the first lens unit 322, is directly fixed on the first housing 10.

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

[0099] It is understandable that the first lens group 32 may not be disposed on the first housing 10, but may be disposed on the second housing 20, and may be matched with the second housing 20 in a matching relationship with the first housing 10. For details, please refer to Figure 4 The first lens group 32 and the second lens group 33 cooperate with each other, and the distance between the first lens group 32 and the second lens group 33 can be adjusted.

[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, can be fixed on the second housing 20. Furthermore, in some embodiments, the second clamping member 331 can be omitted. The second lens group 33, such as the second lens unit 332, is directly fixed on 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, can be fixed on the second housing 20. Furthermore, in some embodiments, the first clamping member 321 can be omitted. The first lens group 32, such as the first lens unit 322, is directly fixed on the second housing 20.

[0102] See also Figure 4 The third lens group 34 cooperates with the image receiving element 35, and the distance between the third lens group 34 and the image receiving element 35 can be adjusted.

[0103] In some embodiments, the third lens group 34 , such as 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 receiving member 35 .

[0104] In some embodiments, the first housing 10 and the second housing 20 move in coordination with each other, indirectly driving the third lens group 34 and the image receiving member 35 to move in coordination with each other, thereby adjusting the distance between the third lens group 34 and the image receiving member 35. Furthermore, in some embodiments, the third lens group 34, such as the third clamping member 341, can be fixed on the first housing 10. Furthermore, in some embodiments, the third clamping member 341 can be omitted. The third lens group 34, such as the third lens unit 342, is directly fixed on the first housing 10.

[0105] See also Fig.10 The third lens group 34 may not be disposed on the first housing 10, but may be disposed on the second housing 20, and may be matched with the second housing 20 in a matching relationship with the first housing 10. For details, please refer to Figure 4 The embodiment shown.

[0106] See also Fig.10 The third lens group 34 cooperates with the image receiving member 35 to adjust the distance between the third lens group 34 and the image receiving member 35. In some embodiments, the third lens group 34, such as the third clamping member 341, moves relative to the second housing 20 to adjust the distance between the third lens group 34 and the image receiving member 35.

[0107] It can be understood that 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 receiving element 35 are both adjustable, so that the adjustment focus of the periscope camera 103 can be achieved, and then at least 3-5 times or more optical magnification can be achieved, so that the imaging quality can be improved. In some embodiments, when the distance between the first lens group 32 and the second lens group 33 is adjusted, the distance between the third lens group 34 and the image receiving element 35 is adjusted. In some embodiments, when the distance between the first lens group 32 and the second lens group 33 is adjusted to be small, the distance between the third lens group 34 and the image receiving element 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 receiving element 35 is reduced.

[0108] See also Fig.11 , Fig.11 for Figure 1 The electronic device 100 in the illustrated embodiment is a schematic diagram of the structure in other embodiments. The electronic device 100 may include a first sub-housing 106 provided with a first housing 10, a second sub-housing 107 provided with a second housing 20 and sliding relative to the first sub-housing 106, and a display screen 102 provided on the first sub-housing 106 and the second sub-housing 107. Among them, the second sub-housing 107 can slide relative to the first sub-housing 106, and can partially slide into the first sub-housing 106 to achieve folding, and can also partially slide outside the first sub-housing 106 to achieve unfolding. The first sub-housing 106 and the second sub-housing 107 can be used to carry and install electronic components such as a circuit main board (a control unit such as a processor is provided on the circuit main board), a battery, a camera or a sensor. The display screen 102 has a bendable performance and can also be called a flexible display screen, which can be used to be electrically connected to electronic components such as a circuit main board (a control unit such as a processor is provided on the circuit main board), a battery, etc., to display information such as image information and text information. When the first sub-housing 106 and the second sub-housing 107 slide relatively, the display screen 102 may partially slide into the second sub-housing 107 or outside the second sub-housing 107 .

[0109] It can be understood that the first sub-housing 106 and the second sub-housing 107 cooperate to form the housing 101. Of course, the housing 101 is not limited to the first sub-housing 106 and the second sub-housing 107, and may also include others.

[0110] In some embodiments, the first sub-housing 106 can also slide relative to the second sub-housing 107, and can partially slide into the second sub-housing 107 to achieve folding, and can also partially slide outside the second sub-housing 107 to achieve expansion. 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 can partially slide into the first sub-housing 106 or outside 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 adjustment of the adjustable relative displacement.

[0112] In some embodiments, the first housing 10 can be fixedly connected to the first sub-housing 106 or integrally injection molded to form an integral structure.

[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 can be omitted, so that the structure of the camera optical system 30 disposed on the first housing 10 cooperates with the first sub-housing 106 by cooperating with the first housing 10.

[0114] In some embodiments, the second housing 20 can be fixedly connected to the second sub-housing 107 or integrally injection molded to form an integral structure.

[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 can be omitted, so that the structure of the camera optical system 30 disposed on the second housing 20 cooperates with the second sub-housing 107 by cooperating 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, and can cover a wider focal length that is more suitable for daily photography. It can provide users with a better photography and video recording experience without greatly affecting the stacking requirements of mobile phones. For example, a higher zoom multiple (larger focal length). For example, the clearest shooting can be achieved at any position within the coverage focal length. For example, a more seamless and more playable video recording experience brought by continuous optical zoom (such as Jelly / Hitchcock zoom).

[0117] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A camera optical system, characterized in that: include: A deflection member, used for deflecting light; A first lens group has a negative refractive power and is used to receive the light deflected by the deflection member and transmit the light; a second lens group having positive refractive power, for receiving the light transmitted through the first lens group and transmitting the light; a third lens group having negative refractive power, for receiving the light transmitted through the second lens group and transmitting the light; as well as The image receiving element is used to receive the light transmitted through 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 element are configured to be adjustable.

2. The camera optical system according to claim 1, characterized in that: 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 receiving element is increased; or, 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 receiving element is decreased.

3. The camera optical system according to claim 1 or 2, characterized in that: The first lens group includes a first negative lens and a first positive lens which are sequentially arranged in the propagation direction of the light.

4. The camera optical system according to claim 3, characterized in that: The light receiving surface of the first negative lens is a concave surface, and the light emitting surface is a concave surface; the light receiving surface of the first positive lens is a convex surface, and the light emitting surface is a concave surface.

5. The camera optical system according to claim 1, 2 or 4, characterized in that: The second lens group includes a second positive lens, a third positive lens and a second negative lens which are sequentially arranged in the propagation direction of the light.

6. The camera optical system according to claim 5, characterized in that: The light receiving surface of the second positive lens is convex, and the light emitting surface is convex; the light receiving surface of the third positive lens is concave, and the light emitting surface is convex; the light receiving surface of the second negative lens is concave, and the light emitting surface is convex.

7. The camera optical system according to claim 1, 2 or 6, characterized in that: The third lens group includes a fourth positive lens and a third negative lens which are sequentially arranged in the propagation direction of the light.

8. The camera optical system according to claim 7, characterized in that: The light receiving surface of the fourth positive lens is a concave surface, and the light emitting surface is a convex surface; the light receiving surface of the third negative lens is a concave surface, and the light emitting surface is a convex surface.

9. A periscope camera, characterized in that: include: Fixings; as well as The camera optical system according to any one of claims 1 to 8, wherein the camera optical system is arranged on the fixing member.

10. The periscope camera according to claim 9, 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 propagation direction of the light, and the third lens group is slidably connected to the fixing member to propagate in the propagation direction of the light.

11. The periscope camera according to claim 9, characterized in that: The steering member comprises a reflecting prism, and the reflecting prism comprises: An incident surface, used for receiving the light and allowing the light to be incident into the reflecting prism; a reflective surface, used to reflect the light entering the reflective prism; and The exit surface is used to receive the light reflected by the reflection surface, and make the light exit the reflection prism and be transmitted to the first lens group.

12. The periscope camera according to claim 11, characterized in that: One of the incident surface and the exit surface is a convex surface.

13. The periscope camera according to claim 11, characterized in that: One of the incident surface and the exit surface is an outwardly convex aspherical surface.

14. An electronic device, characterized in that: include: chassis; as well as The periscope camera described in any one of claims 9 to 13 is arranged on the housing.

15. An electronic device, characterized in that: A housing, comprising a first sub-housing and a second sub-housing slidably connected to the first sub-housing; The camera optical system according to any one of claims 1 to 8, wherein the steering member and the first lens group are arranged on the first sub-housing, the second lens group and the image receiving member are arranged on the second sub-housing, the third lens group is slidably connected to the second sub-housing, and the first sub-housing and the second sub-housing are configured to relatively slide to adjust the distance between the first lens group and the second lens group, and when the distance between the first lens group and the second lens group is adjusted, the third lens group slides relative to the second sub-housing to adjust the distance between the third lens group and the image receiving member.

Images