Optical transmission assembly, periscope camera module and intelligent terminal

Abstract

The utility model discloses a kind of optical transmission components, periscopic camera module and intelligent terminal, optical transmission component includes: first prism, with first light-in and light-out surface, first light-in and light-out surface has first light-in area and first light-out area;Second prism, with second light-in and light-out surface, second light-in and light-out surface has second light-in area and second light-out area, second prism is located above first prism and first light-in and light-out surface and second light-in and light-out surface are oppositely arranged, first light-out area corresponds with second light-in area, first light-in area and second light-out area are completely staggered, at least part of light that first prism is incident from first light-in area can successively be incident second prism through first light-out area and second light-in area, and emit from second light-out area. By being located above first prism and first light-in and light-out surface and second light-in and light-out surface are oppositely arranged, so the length of optical transmission component can be reduced, to reduce the size of periscopic camera module.

Description

Technical Field

[0001] This utility model relates to the field of camera module technology, and in particular to an optical transmission component, a periscope camera module and a smart terminal. Background Technology

[0002] With the rapid development of camera technology, more and more electronic devices such as smartphones, tablets, and e-readers are equipped with camera modules to achieve camera functionality. In order to meet the needs of long-distance photography and avoid increasing the thickness of the phone, the telephoto camera modules currently used in mobile phones are all periscope telephoto camera modules. Periscope telephoto camera modules use prisms to reflect, deflect, and transmit light to change the direction of light propagation, which is conducive to folding the light path. This allows components such as lenses and image sensors to be placed horizontally inside the phone casing, reducing the space occupied by the camera module.

[0003] Currently, users have increasingly higher requirements for the shooting quality and zoom capabilities of mobile phones and other shooting devices. Generally, short / medium / telephoto lenses are selected to achieve high-magnification zoom functions using relay or hybrid architectures. For telephoto lenses, due to the excessively long total track length (TTL), the height of traditional upright architectures can no longer meet the thickness requirements of general mobile phone devices. Therefore, most telephoto lens modules on the market incorporate reflectors or triangular prisms and use periscope architectures to achieve the solution required for mobile phone thickness.

[0004] In the process of developing this application, the inventor discovered that the prior art has at least the following problems: the traditional periscope architecture can only improve the thickness, and the overall module still needs to occupy length space for configuration. Utility Model Content

[0005] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an optical transmission component, a periscope camera module and a smart terminal to solve the problem of the long length of the periscope camera module in the existing technology.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] This utility model provides an optical transmission component, including:

[0008] The first prism has a first light-entering and light-exiting surface, and the first light-entering and light-exiting surface has a first light-entering region and a first light-exiting region.

[0009] The second prism has a second light-entry surface, which has a second light-entry area and a second light-exit area. The second prism is disposed above the first prism, and the first light-entry surface and the second light-entry surface face each other. The first light-exit area corresponds to the second light-entry area, and the first light-entry area and the second light-exit area are completely offset. At least part of the light rays that enter the first prism from the first light-entry area can sequentially pass through the first light-exit area and the second light-entry area to enter the second prism, and exit from the second light-exit area.

[0010] In one embodiment, the first prism has a first reflective surface and a second reflective surface, and the first light-entering surface has a first reflective area. Both the first reflective surface and the second reflective surface are inclined to the first light-entering surface. At least a portion of the light rays incident on the first prism from the first light-entering area can pass sequentially through the first reflective surface, the first reflective area, and the second reflective surface before exiting from the first light-exiting area.

[0011] In one embodiment, the second prism has a third reflecting surface and a fourth reflecting surface, and the second light-entering surface has a second reflective area. The third reflecting surface and the fourth reflecting surface are both inclined to the second light-entering surface. At least a portion of the light rays incident on the second prism from the second light-entering area can pass sequentially through the third reflecting surface, the second reflective area and the fourth reflecting surface before exiting from the second light-exiting area.

[0012] In one embodiment, the first light-entering surface and the second light-entering surface are arranged parallel to each other;

[0013] And / or, both the first prism and the second prism are trapezoidal structures.

[0014] In one embodiment, a first light-absorbing layer is provided at the edge of the first light-entry and light-exit surfaces, and the first light-absorbing layer is disposed at the periphery of the first light-entry area and the first light-exit area;

[0015] And / or, the edge of the second light-incident surface is provided with a second light-absorbing layer, which is disposed at the periphery of the second light-incident area and the second light-outcident area.

[0016] In one embodiment, the optical transmission component further includes a third prism having a third light-entry surface, the third light-entry surface having a third light-entry region and a third light-exit region, the third prism being disposed below the second prism with the second light-entry surface and the third light-entry surface facing each other, the second light-exit region corresponding to the third light-entry region, the second light-entry region being completely offset from the third light-exit region, and at least a portion of the light rays incident on the second prism from the second light-entry region being able to sequentially pass through the second light-exit region and the third light-entry region to enter the third prism, and exit from the third light-exit region.

[0017] In one embodiment, the third prism has a fifth reflecting surface and a sixth reflecting surface, and the third light-entry / exit surface has a third reflective area. The fifth reflecting surface and the sixth reflecting surface are both inclined to the third light-entry / exit surface. At least a portion of the light rays incident on the third prism from the third light-entry area can pass sequentially through the fifth reflecting surface, the third reflective area, and the sixth reflecting surface before exiting from the third light-exit area.

[0018] In one embodiment, the second and third light-entry / exit surfaces are arranged parallel to each other;

[0019] And / or, the third prism has a trapezoidal structure;

[0020] And / or, the edge of the third light-incident surface is provided with a third light-absorbing layer, which is disposed at the periphery of the third light-incident area and the third light-outceasing area.

[0021] This application also provides a periscope camera module, including a lens, an image sensor, and an optical transmission component as described above. The lens corresponds to the first light-incident area, and the optical transmission component is configured to receive the light emitted from the lens through the first light-incident area and transmit the light to the image sensor.

[0022] This application also provides a smart terminal, including the periscope camera module described above.

[0023] The beneficial effects of this utility model are as follows: by placing the second prism above the first prism and setting the first and second light-input and output surfaces facing each other, with the first light-output area corresponding to the second light-input area, the first and second prisms are stacked in the vertical direction, thereby reducing the length of the optical transmission component and thus reducing the lateral size of the periscope camera module; since the periscope camera module also has a lens and an image sensor in the vertical direction, the optical transmission component will not affect the vertical size of the periscope camera module after being installed inside the periscope camera module. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0025] Figure 1 A schematic diagram of the hardware structure of a smart terminal to implement the various embodiments of this application.

[0026] Figure 2 This is a communication network system architecture diagram provided for an embodiment of this application.

[0027] Figure 3 This is a schematic diagram of the optical transmission component in the first embodiment of this utility model.

[0028] Figure 4 This is a top view of the first prism in the first embodiment of this utility model.

[0029] Figure 5 This is a schematic diagram of the periscope camera module in the first embodiment of this utility model.

[0030] Figure 6 This is a schematic diagram of the periscope camera module before and after focusing in the first embodiment of this utility model.

[0031] Figure 7 This is a schematic diagram of the optical transmission component in the second embodiment of this utility model.

[0032] Figure 8 This is a schematic diagram of the periscope camera module in the second embodiment of this utility model.

[0033] In the figure: optical transmission component 30, first prism 31, first light-entry / exit surface 311, first light-entry area 311a, first light-exit area 311b, first reflective area 311c, first light-absorbing layer 311d, first reflective surface 312, second reflective surface 313, second prism 32, second light-entry / exit surface 321, second light-entry area 321a, second light-exit area 321b, second reflective area 321c, second light-absorbing layer, third reflective surface 322, fourth reflective surface 323, third prism 33, third light-entry / exit surface 331, third light-entry area 331a, third light-exit area 331b, third reflective area 331c, third light-absorbing layer, fifth reflective surface 332, sixth reflective surface 333, lens 40, first lens 41, second lens 42, third lens 43, image sensor 50.

[0034] The realization of the objectives, functional features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0035] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0036] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0037] It should be understood that although the terms first, second, third, etc., may be used herein to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if," as used herein, may be interpreted as "when," "when," or "in response to determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising," "including," indicate the presence of the stated feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used in this application, may be interpreted as inclusive, or mean any one or any combination thereof. For example, "including at least one of the following: A, B, C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Similarly, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0038] It should be understood that although the steps in the flowcharts of this application's embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the sub-steps or stages of other steps.

[0039] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0040] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0041] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0042] Smart terminals can be implemented in various forms. For example, the smart terminals described in this application may include smart terminals such as mobile phones, tablets, laptops, handheld computers, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0043] The following description will use a mobile terminal as an example. Those skilled in the art will understand that, apart from elements specifically designed for mobile purposes, the construction according to the embodiments of this application can also be applied to fixed-type terminals.

[0044] Please see Figure 1 This is a schematic diagram of the hardware structure of a mobile terminal implementing various embodiments of this application. The mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (Audio / Video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111, etc. Those skilled in the art will understand that... Figure 1 The mobile terminal structure shown does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0045] The following is combined Figure 1 A detailed introduction to each component of the mobile terminal:

[0046] The radio frequency unit 101 can be used for receiving and transmitting signals during information transmission or calls. Specifically, it receives downlink information from the base station and processes it with the processor 110; additionally, it transmits uplink data to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, and a duplexer. Furthermore, the radio frequency unit 101 can also communicate wirelessly with networks and other devices. The aforementioned wireless communications may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), and 5G, etc.

[0047] WiFi is a short-range wireless transmission technology. Mobile terminals, through the WiFi module 102, can help users send and receive emails, browse web pages, and access streaming media, providing users with wireless broadband internet access. Although Figure 1 The WiFi module 102 is shown, but it is understood that it is not a necessary component of the mobile terminal and can be omitted as needed without changing the essence of the utility model.

[0048] The audio output unit 103 can convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into audio signals and output them as sound when the mobile terminal 100 is in call signal receiving mode, call mode, recording mode, voice recognition mode, broadcast receiving mode, etc. Furthermore, the audio output unit 103 can also provide audio output related to specific functions performed by the mobile terminal 100 (e.g., call signal receiving sound, message receiving sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0049] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes image data of still images or videos acquired by an image capture device (such as a camera) in video capture mode or image capture mode. The processed image frames can be displayed on the display unit 106. The image frames processed by the GPU 1041 can be stored in the memory 109 (or other storage media) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) in operating modes such as telephone call mode, recording mode, and voice recognition mode, and can process such sound into audio data. The processed audio (voice) data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in telephone call mode. The microphone 1042 can implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated during the reception and transmission of audio signals.

[0050] The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the ambient light level, and the proximity sensor can turn off the display panel 1061 and / or backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that recognize the phone's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc. Other sensors that may be configured in the phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, and infrared sensors, will not be described in detail here.

[0051] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0052] User input unit 107 can be used to receive input numerical or character information, and generate key signal inputs related to user settings and function control of the mobile terminal. Optionally, user input unit 107 may include touch panel 1071 and other input devices 1072. Touch panel 1071, also known as touch screen, can collect touch operations on or near the user (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near touch panel 1071), and drive corresponding connection devices according to a pre-set program. Touch panel 1071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch position and the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, sends it to processor 110, and can receive and execute commands sent by processor 110. In addition, touch panel 1071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may also include other input devices 1072. Optionally, other input devices 1072 may include, but are not limited to, one or more of the following: physical keyboard, function keys (such as volume control buttons, power buttons, etc.), trackball, mouse, joystick, etc., without being specifically limited here.

[0053] Optionally, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. Subsequently, the processor 110 provides corresponding visual output on the display panel 1061 based on the type of touch event. Although in Figure 1 In this embodiment, the touch panel 1071 and the display panel 1061 are two independent components to realize the input and output functions of the mobile terminal. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the mobile terminal. The specific implementation is not limited here.

[0054] Interface unit 108 serves as an interface through which at least one external device can connect to mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, and so on. Interface unit 108 may be used to receive input (e.g., data, power, etc.) from the external device and transmit the received input to one or more elements within mobile terminal 100, or it may be used to transmit data between mobile terminal 100 and the external device.

[0055] The memory 109 can be used to store software programs and various data. The memory 109 may primarily include a program storage area and a data storage area. Optionally, the program storage area may store the operating system, applications required for at least one function (such as sound playback, image playback, etc.), etc.; the data storage area may store data created based on the use of the mobile phone (such as audio data, phonebook, etc.). Furthermore, the memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0056] The processor 110 is the control center of the mobile terminal. It connects various parts of the mobile terminal via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 109, and by calling data stored in the memory 109, it performs various functions and processes data of the mobile terminal, thereby providing overall monitoring of the mobile terminal. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor. Optionally, the application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 110.

[0057] The mobile terminal 100 may also include a power supply 111 (such as a battery) that supplies power to various components. Preferably, the power supply 111 can be logically connected to the processor 110 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system.

[0058] although Figure 1 As not shown, the mobile terminal 100 may also include a Bluetooth module, etc., which will not be described in detail here.

[0059] To facilitate understanding of the embodiments of this application, the communication network system on which the mobile terminal of this application is based is described below.

[0060] Please see Figure 2 , Figure 2 This application provides a communication network system architecture diagram. The communication network system is an LTE system based on the universal mobile communication technology. The LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and the operator's IP services 204, which are connected in sequence.

[0061] Optionally, UE201 can be the aforementioned terminal 100, which will not be described in detail here.

[0062] E-UTRAN202 includes eNodeB2021 and other eNodeB2022s. Optionally, eNodeB2021 can connect to other eNodeB2022s via backhaul (e.g., X2 interface). eNodeB2021 connects to EPC203 and can provide UE201 with access to EPC203.

[0063] EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving Gateway) 2034, a PGW (Packet Data Network Gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, etc. Optionally, MME2031 is the control node that handles signaling between UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as the Home Location Register (not shown in the figure) and stores user-specific information such as service characteristics and data rates. All user data can be sent through SGW2034. PGW2035 can provide UE 201 IP address allocation and other functions. PCRF2036 is the policy and charging control decision point for service data flow and IP bearer resources. It selects and provides available policy and charging control decisions for the policy and charging enforcement function unit (not shown in the figure).

[0064] IP services 204 may include the Internet, intranet, IMS (IP Multimedia Subsystem), or other IP services.

[0065] Although the above description uses the LTE system as an example, those skilled in the art should understand that this application is not only applicable to the LTE system, but also to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems (such as 5G), etc., without limitation.

[0066] Based on the above-described mobile terminal hardware structure and communication network system, various embodiments of this application are proposed.

[0067] First Embodiment

[0068] Figure 3 This is a schematic diagram of the optical transmission component in the first embodiment of this utility model. Figure 4 This is a top view schematic diagram of the first prism in the first embodiment of this utility model. (See diagram below.) Figure 3 and Figure 4 As shown, the first embodiment of this application provides an optical transmission component 30, including:

[0069] The first prism 31 has a first light-incident surface 311, which has a first light-incident region 311a and a first light-outceasing region 311b. That is, the light-outceasing surface and the light-incident surface of the first prism 31 are different regions on the same plane of the first prism 31.

[0070] The second prism 32 has a second light-entry surface 321, which has a second light-entry area 321a and a second light-exit area 321b. That is, the light-exit surface and the light-entry surface of the second prism 32 are different areas on the same plane of the second prism 32. The second prism 32 is positioned above the first prism 31, with the first light-entry surface 311 and the second light-entry surface 321 facing each other. The first light-exit area 311b corresponds to the second light-entry area 321a, and the first light-entry area 311a and the second light-exit area 321b are completely offset. At least a portion of the light rays entering the first prism 31 from the first light-entry area 311a can sequentially pass through the first light-exit area 311b and the second light-entry area 321a to enter the second prism 32, and exit from the second light-exit area 321b. Figure 3 For reference, the first light-incident region 311a is located to the left of the first light-exiting surface 311, the first light-exiting region 311b is located to the right of the first light-exiting surface 311, the second light-incident region 321a is located to the left of the second light-exiting surface 321, the second light-exiting region 321b is located to the right of the second light-exiting surface 321, and the projection of the second light-incident region 321a onto the first light-exiting surface 311 at least partially overlaps with the first light-exiting region 311b.

[0071] In this application, by placing the second prism 32 above the first prism 31 and setting the first light-incoming surface 311 and the second light-incoming surface 321 facing each other, with the first light-out region 311b corresponding to the second light-incoming region 321a, the first prism 31 and the second prism 32 are stacked in the vertical direction. This reduces the length of the optical transmission component 30 and thus reduces the lateral dimension of the periscope camera module. Since the periscope camera module also has a lens 40 and an image sensor 50 in the vertical direction, the optical transmission component 30 will not affect the vertical dimension of the periscope camera module after being installed inside the periscope camera module.

[0072] In this embodiment, the number of prisms is even, for example, there are two prisms, namely the first prism 31 and the second prism 32. Of course, in other embodiments, the number of prisms can also be four or six, etc. By using an even number of prisms, the light-incident direction and the light-out direction of the optical transmission component 30 are the same, so as to ensure that the image acquired by the image sensor 50 is an upright image, thereby reducing the difficulty of image processing.

[0073] In this embodiment, the first prism 31 has a first reflecting surface 312 and a second reflecting surface 313, and the first light-entering surface 311 has a first reflective area 311c. Both the first reflecting surface 312 and the second reflecting surface 313 are inclined to the first light-entering surface 311. At least part of the light rays entering the first prism 31 from the first light-entering area 311a can pass sequentially through the first reflecting surface 312, the first reflective area 311c, and the second reflecting surface 313 before exiting from the first light-exiting area 311b. That is, the light rays undergo at least three reflections in the first prism 31 before exiting from the first light-exiting area 311b, which is beneficial for folding the light path and increasing the optical magnification of the telephoto lens.

[0074] Optionally, the first prism 31 is provided with a reflective film in the first reflective surface 312, the second reflective surface 313, and the first reflective area 311c of the first light-entry and light-exit surface 311 to increase the reflection effect and improve the reflectivity.

[0075] In this embodiment, the second prism 32 has a third reflecting surface 322 and a fourth reflecting surface 323, and the second light-entry / exit surface 321 has a second reflective area 321c. Both the third reflecting surface 322 and the fourth reflecting surface 323 are inclined relative to the second light-entry / exit surface 321. At least a portion of the light rays entering the second prism 32 from the second light-entry area 321a can sequentially pass through the third reflecting surface 322, the second reflective area 321c, and the fourth reflecting surface 323 before exiting from the second light-exit area 321b. That is, the light rays undergo at least three reflections within the second prism 32 before exiting from the second light-exit area 321b, which facilitates the folding of the light path and increases the optical magnification of the telephoto lens.

[0076] Optionally, the second prism 32 is provided with reflective films on the third reflective surface 322, the fourth reflective surface 323, and the second reflective area 321c of the second light-entry and exit surface 321 to increase the reflection effect and improve the reflectivity.

[0077] In this embodiment, the first light-entry / exit surface 311 and the second light-entry / exit surface 321 are arranged parallel to each other. Optionally, the first light-entry / exit surface 311 and the second light-entry / exit surface 321 can be bonded together with transparent optical adhesive.

[0078] Furthermore, both the first prism 31 and the second prism 32 are trapezoidal structures to reduce the longitudinal dimension of the optical transmission component 30. For example, both the first prism 31 and the second prism 32 are identical isosceles trapezoidal structures, with the first prism 31 being an inverted structure, thereby ensuring that the first light-entry / exit surface 311 and the second light-entry / exit surface 321 are arranged facing each other.

[0079] In this embodiment, as Figure 4 As shown, a first light-absorbing layer 311d is provided at the edge of the first light-entry / exit surface 311, and the first light-absorbing layer 311d is disposed at the periphery of the first light-entry region 311a and the first light-exit region 311b. A second light-absorbing layer is provided at the edge of the second light-entry / exit surface 321 (since the first prism 31 and the second prism 32 are similar, reference can be made to...). Figure 4 The second light-absorbing layer is located around the second light-incident region 321a and the second light-outceasing region 321b. Both the first light-absorbing layer 311d and the second light-absorbing layer are formed using a screen printing process. The ink is used to intercept stray light reflected from the surface of the substrate inside the prisms (first prism 31 and second prism 32), thereby reducing stray light and solving the glare problem caused by prisms in telephoto lenses.

[0080] Figure 5 This is a schematic diagram of the periscope camera module in the first embodiment of this utility model. Figure 5 As shown, this embodiment also provides a periscope camera module, including a lens 40, an image sensor 50, and an optical transmission component 30 as described above. The lens 40 is disposed above the optical transmission component 30 and corresponds to the first light-incident area 311a. The image sensor 50 is disposed below the optical transmission component 30 and corresponds to the second light-outceasing area 321b. The optical transmission component 30 is configured to receive the light emitted from the lens 40 through the first light-incident area 311a and transmit the light to the image sensor 50.

[0081] The lens 40 is used to converge light and direct it toward the optical transmission component 30. The light enters the first prism 31 from the first light-incident area 311a. At least a portion of the light can pass through the first reflective surface 312, the first reflective area 311c and the second reflective surface 313 in sequence and then exit from the first light-out area 311b and be directed toward the second prism 32. Then the light enters the second prism 32 from the second light-incident area 321a. At least a portion of the light can pass through the third reflective surface 322, the second reflective area 321c and the fourth reflective surface 323 in sequence and then exit from the second light-out area 321b and be directed toward the image sensor 50.

[0082] Optionally, the lens 40 includes multiple lens elements, such as three lens elements. The lens 40 includes a first lens element 41, a second lens element 42, and a third lens element 43 stacked sequentially from bottom to top (i.e., in the direction away from the optical transmission component 30). Of course, the lens 40 can also use four, five, or six lens elements. Optionally, the first lens element 41 can be configured to move up and down independently relative to the second lens element 42 and the third lens element 43. By moving the first lens element 41 downward, macro focusing can be achieved by the lens 40 without changing the module height. Of course, the entire lens 40 can also move up and down relative to the optical transmission component 30 to achieve telephoto focusing.

[0083] Figure 6 This is a schematic diagram of the periscope camera module in the first embodiment of this utility model before and after focusing. Figure 6 As shown, lens 40 (corresponding to) Figure 6 The focusing group (e.g., using 4 lenses) is located close to the optical transmission assembly 30 (corresponding to...). Figure 6 The lens on one side of the prism can move relative to the other lenses, thus achieving the purpose of 40mm macro focusing. Figure 6 The chip in the middle corresponds to image sensor 50 in this article. Figure 6 The IR plate in the image is a filter that serves to filter light.

[0084] Second Embodiment

[0085] Figure 7 This is a schematic diagram of the optical transmission component in the second embodiment of this utility model. (See attached diagram.) Figure 7 As shown, the optical transmission component provided in Embodiment 2 of this utility model is similar to that in Embodiment 1. Figures 3 to 6 The optical transmission components in the two are basically the same, the difference being:

[0086] In this embodiment, the optical transmission component further includes a third prism 33, which has a third light-exit surface 331, meaning that the light-exit surface and the light-init surface of the third prism 33 are different regions on the same plane of the third prism 33. The third light-exit surface 331 has a third light-init region 331a and a third light-exit region 331b. The third prism 33 is located below the second prism 32, and the second light-exit surface 321 and the third light-exit surface 331 face each other. The second light-exit region 321b corresponds to the third light-init region 332a, and the second light-init region 321a and the third light-exit region 332b are completely offset. At least a portion of the light rays incident on the second prism 32 from the second light-init region 321a can sequentially pass through the second light-exit region 321b and the third light-init region 332a to enter the third prism 33, and exit from the third light-exit region 332b. By adding the third prism 33, it is beneficial to fold the optical path and increase the optical magnification of the telephoto lens.

[0087] Among them, with Figure 7 For reference, the first light-incident region 311a is located to the left of the first light-exiting surface 311, the first light-exiting region 311b is located to the right of the first light-exiting surface 311, the second light-incident region 321a is located to the left of the second light-exiting surface 321, the second light-exiting region 321b is located to the right of the second light-exiting surface 321, the third light-incident region 331a is located to the left of the third light-exiting surface 331, the third light-exiting region 331b is located to the right of the third light-exiting surface 331, the projection of the second light-incident region 321a onto the first light-exiting surface 311 at least partially overlaps with the first light-exiting region 311b, and the projection of the third light-incident region 331a onto the second light-exiting surface 321 at least partially overlaps with the second light-exiting region 321b.

[0088] In this embodiment, the number of prisms is odd, for example, there are three prisms: the first prism 31, the second prism 32, and the third prism 33. Of course, in other embodiments, the number of prisms can also be five or seven, etc. By using an odd number of prisms, the light-incident direction and the light-outcident direction of the optical transmission component 30 are opposite, ensuring that the image sensor 50 and the lens 40 can be located on the same side of the optical transmission component 30, which facilitates wiring design, but the acquired image is a mirror image.

[0089] In this embodiment, the third prism 33 has a fifth reflecting surface 332 and a sixth reflecting surface 333, and the third light-entry / exit surface 331 has a third reflecting region 331c. Both the fifth reflecting surface 332 and the sixth reflecting surface 333 are inclined relative to the third light-entry / exit surface 331. At least a portion of the light rays entering the third prism 33 from the third light-entry region 331a can sequentially pass through the fifth reflecting surface 332, the third reflecting region 331c, and the sixth reflecting surface 333 before exiting from the third light-exit region 331b. That is, the light rays undergo at least three reflections within the third prism 33 before exiting from the third light-exit region 331b, which facilitates the folding of the light path and increases the optical magnification of the telephoto lens.

[0090] Optionally, the third prism 33 is provided with reflective films on the fifth reflective surface 332, the sixth reflective surface 333, and the third reflective area 331c of the third light-entry and exit surface 331 to increase the reflection effect and improve the reflectivity.

[0091] In this embodiment, the second light-entry / exit surface 321 and the third light-entry / exit surface 331 are arranged parallel to each other. Optionally, the second light-entry / exit surface 321 and the third light-entry / exit surface 331 can be bonded together with transparent optical adhesive. The first prism 31 and the third prism 33 are located at the same horizontal height.

[0092] Furthermore, the first prism 31, the second prism 32, and the third prism 33 are all trapezoidal structures to reduce the longitudinal dimension of the optical transmission component 30. For example, the first prism 31, the second prism 32, and the third prism 33 are all identical isosceles trapezoidal structures, and the first prism 31 and the third prism 33 are inverted structures, thereby ensuring that the first light-entry and light-exit surfaces 311 and 321 are arranged facing each other, the second light-entry and light-exit surfaces 321 and 331 are arranged facing each other, and the first light-entry and light-exit surfaces 311 and 331 are located on the same horizontal plane.

[0093] In this embodiment, a third light-absorbing layer is provided at the edge of the third light-entry / exit surface 331 (since the first prism 31, the second prism 32, and the third prism 33 are similar, it can be referred to...). Figure 4 The third light-absorbing layer is located around the third light-incident region 331a and the third light-outceasing region 331b. This third light-absorbing layer is formed using a screen printing process, and the ink is used to intercept stray light reflected from the surface of the substrate inside the prisms (first prism 31, second prism 32, and third prism 33), thereby reducing stray light and solving the glare problem caused by prisms in telephoto lenses.

[0094] Figure 8 This is a structural schematic diagram of the periscope camera module in the second embodiment of this utility model. Figure 8 As shown, this embodiment also provides a periscope camera module, including a lens 40, an image sensor 50, and the optical transmission component 30 as described above. The lens 40 is disposed above the optical transmission component 30 and corresponds to the first light-incident area 311a. The image sensor 50 is disposed above the optical transmission component 30 and corresponds to the third light-outceasing area 331b. The optical transmission component 30 is configured to receive the light emitted from the lens 40 through the first light-incident area 311a and transmit the light to the image sensor 50.

[0095] The lens 40 is used to converge light and direct it toward the optical transmission component 30. The light enters the first prism 31 from the first light-incident area 311a. At least a portion of the light passes through the first reflective surface 312, the first reflective area 311c, and the second reflective surface 313 in sequence and then exits from the first light-exiting area 311b and is directed toward the second prism 32. Then, the light enters the second prism 32 from the second light-incident area 321a. At least a portion of the light passes through the third reflective surface 322, the second reflective area 321c, and the fourth reflective surface 323 in sequence and then exits from the second light-exiting area 321b and is directed toward the third prism 33. Then, the light enters the third prism 33 from the third light-incident area 331a. At least a portion of the light passes through the fifth reflective surface 332, the third reflective area 331c, and the sixth reflective surface 333 in sequence and then exits from the third light-exiting area 331b and is directed toward the image sensor 50.

[0096] Optionally, the lens 40 includes multiple lens elements, such as three lens elements. The lens 40 includes a first lens element 41, a second lens element 42, and a third lens element 43 stacked sequentially from bottom to top. Of course, the lens 40 can also use four, five, or six lens elements. Optionally, the first lens element 41 can be configured to move up and down independently relative to the second lens element 42 and the third lens element 43. By moving the first lens element 41 downward, macro focusing can be achieved by the lens 40 without changing the module height. Of course, the entire lens 40 can also move up and down relative to the optical transmission assembly 30 to achieve telephoto focusing.

[0097] Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

[0098] This application also relates to a smart terminal, including the periscope camera module described above.

[0099] Please refer to the above for the structure and functions of smart terminals; they will not be repeated here.

[0100] It is understood that the above scenarios are merely examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of this application. The technical solutions of this application can also be applied to other scenarios. For example, as those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0101] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0102] The steps in the method of this application embodiment can be adjusted, combined, or deleted according to actual needs.

[0103] The units in the device of this application embodiment can be merged, divided, and deleted according to actual needs. In this application, the same or similar terms, concepts, technical solutions, and / or application scenario descriptions are generally described in detail only when they appear for the first time. When they appear again later, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of this application, for the same or similar terms, concepts, technical solutions, and / or application scenario descriptions that are not described in detail later, you can refer to their previous related detailed descriptions.

[0104] In this application, the descriptions of each embodiment have their own emphasis. Parts not detailed or described in a particular embodiment can be referred to in the relevant descriptions of other embodiments. The technical features of the technical solutions in this application can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as these combinations of technical features do not contradict each other, they should be considered within the scope of this application.

[0105] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, controlled terminal, or network device, etc.) to execute the methods of each embodiment of this application.

[0106] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The usable medium can be a magnetic medium (e.g., floppy disk, storage disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk (SSD)). The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An optical transmission component, characterized in that, include: The first prism (31) has a first light-entering surface (311), which has a first light-entering region (311a) and a first light-exiting region (311b). The second prism (32) has a second light-entry surface (321), which has a second light-entry area (321a) and a second light-exit area (321b). The second prism (32) is located above the first prism (31), and the first light-entry surface (311) and the second light-entry surface (321) are arranged facing each other. The first light-exit area (311b) corresponds to the second light-entry area (321a), and the first light-entry area (311a) and the second light-exit area (321b) are completely offset. At least part of the light rays that enter the first prism (31) from the first light-entry area (311a) can sequentially pass through the first light-exit area (311b) and the second light-entry area (321a) to enter the second prism (32), and exit from the second light-exit area (321b).

2. The optical transmission component according to claim 1, characterized in that, The first prism (31) has a first reflecting surface (312) and a second reflecting surface (313), and the first light-entering surface (311) has a first reflective area (311c). The first reflecting surface (312) and the second reflecting surface (313) are both inclined to the first light-entering surface (311). At least part of the light rays incident on the first prism (31) from the first light-entering area (311a) can pass through the first reflecting surface (312), the first reflective area (311c) and the second reflecting surface (313) in sequence and then exit from the first light-exiting area (311b).

3. The optical transmission component according to claim 1, characterized in that, The second prism (32) has a third reflecting surface (322) and a fourth reflecting surface (323), and the second light-entering surface (321) has a second reflective area (321c). The third reflecting surface (322) and the fourth reflecting surface (323) are both inclined to the second light-entering surface (321). At least part of the light rays incident on the second prism (32) from the second light-entering area (321a) can pass through the third reflecting surface (322), the second reflective area (321c) and the fourth reflecting surface (323) in sequence and then exit from the second light-exiting area (321b).

4. The optical transmission component according to claim 1, characterized in that, The first light-entry and light-exit surfaces (311) and the second light-entry and light-exit surfaces (321) are arranged parallel to each other; And / or, both the first prism (31) and the second prism (32) are trapezoidal structures.

5. The optical transmission component according to claim 1, characterized in that, The edge of the first light-incident surface (311) is provided with a first light-absorbing layer (311d), and the first light-absorbing layer (311d) is provided at the periphery of the first light-incident area (311a) and the first light-outcrystal area (311b); And / or, the edge of the second light-incident surface (321) is provided with a second light-absorbing layer, which is disposed at the periphery of the second light-incident area (321a) and the second light-outceasing area (321b).

6. The optical transmission component according to any one of claims 1-5, characterized in that, The optical transmission component further includes a third prism (33), which has a third light-entry surface (331). The third light-entry surface (331) has a third light-entry area (331a) and a third light-exit area (331b). The third prism (33) is located below the second prism (32), and the second light-entry surface (321) and the third light-entry surface (331) are arranged facing each other. The second light-exit area (321b) corresponds to the third light-entry area (332a). The second light-entry area (321a) and the third light-exit area (332b) are completely offset. At least a portion of the light rays incident on the second prism (32) from the second light-entry area (321a) can sequentially pass through the second light-exit area (321b) and the third light-entry area (332a) to enter the third prism (33), and exit from the third light-exit area (332b).

7. The optical transmission component according to claim 6, characterized in that, The third prism (33) has a fifth reflecting surface (332) and a sixth reflecting surface (333), and the third light-entry and light-exit surface (331) has a third reflective area (331c). The fifth reflecting surface (332) and the sixth reflecting surface (333) are both inclined to the third light-entry and light-exit surface (331). At least part of the light rays incident on the third prism (33) from the third light-entry area (331a) can pass through the fifth reflecting surface (332), the third reflective area (331c) and the sixth reflecting surface (333) in sequence and then exit from the third light-exit area (331b).

8. The optical transmission component according to claim 6, characterized in that, The second light-entry and light-exit surfaces (321) and the third light-entry and light-exit surfaces (331) are arranged parallel to each other; And / or, the third prism (33) has a trapezoidal structure; And / or, the edge of the third light-incident surface (331) is provided with a third light-absorbing layer, which is disposed at the periphery of the third light-incident region (331a) and the third light-outceasing region (331b).

9. A periscope camera module, characterized in that, Includes a lens (40), an image sensor (50), and an optical transmission component (30) as described in any one of claims 1-8, wherein the lens (40) corresponds to the first light-receiving area (311a), and the optical transmission component (30) is configured to receive the light emitted from the lens (40) through the first light-receiving area (311a) and transmit the light to the image sensor (50).

10. A smart terminal, characterized in that, Includes the periscope camera module as described in claim 9.

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