Spectrum analyzer, camera device and electronic equipment

Abstract

The invention provides a spectrum analyzer, a camera device and electronic equipment. The spectrum analyzer comprises a light transmitting piece, a collimation dispersion piece, a focusing piece and an optical waveguide piece. The light-transmitting piece is provided with a slit or an open hole, and the slit or the open hole is used for allowing light to pass through; the collimation and dispersion part is used for carrying out collimation and dispersion on the light passing through the light transmitting part; the focusing piece is used for converging the light rays collimated and dispersed by the collimation and dispersion piece; the optical waveguide piece is used for transmitting the light converged by the focusing piece, and the light converged by the focusing piece is reflected by the optical waveguide piece for multiple times; the light transmitted and emitted by the optical waveguide is used for spectral analysis. According to the optical spectrum analyzer provided by the invention, the optical waveguide piece is arranged behind the focusing piece, so that the optical path of the focusing piece for converging light rays is increased, and the larger focal length of the focusing piece is realized, thereby realizing higher resolution and facilitating the miniaturization of the optical spectrum analyzer.

Description

Technical Field

[0001] This application relates to the field of electronic devices, and particularly to a spectral analyzer, a camera device, and an electronic device. Background Art

[0002] A spectral analyzer can accurately measure the spectrum of an object for analyzing the object's composition, sensing ambient light, etc., and is a commonly used analytical instrument.

[0003] With the development of technology, more and more terminal devices integrate spectral analyzers to enable the terminal devices to have spectral analysis functions. However, existing spectral analyzers are usually large in size and not convenient to be integrated into various terminals. Summary of the Invention

[0004] This application provides a spectral analyzer, a camera device, and an electronic device. The spectral analyzer includes a light-transmitting member, a collimating and dispersing member, a focusing member, and an optical waveguide member that are sequentially arranged at intervals along an optical path. By arranging the optical waveguide member after the focusing member, the optical waveguide member can reflect light multiple times, increasing the optical path of the light converged by the focusing member, achieving a larger focal length of the focusing member, thereby achieving a higher resolution and facilitating the miniaturization of the spectral analyzer.

[0005] In a first aspect, this application provides a spectral analyzer, which includes a light-transmitting member, a collimating and dispersing member, a focusing member, and an optical waveguide member. The light-transmitting member, the collimating and dispersing member, the focusing member, and the optical waveguide member are sequentially arranged at intervals along the optical path. The light-transmitting member is provided with a slit or an opening for allowing light to pass through. The collimating and dispersing member is used to collimate and disperse the light passing through the slit or the opening. The focusing member is used to converge the light collimated and dispersed by the collimating and dispersing member. The optical waveguide member is used to transmit the light converged by the focusing member, where the light converged by the focusing member is reflected multiple times by the optical waveguide member. The light transmitted and emitted by the optical waveguide member is used for spectral analysis.

[0006] In this application, the optical waveguide member reflects the light converged by the focusing member multiple times to extend the optical path of the light converged by the focusing member, enabling the spectral analyzer to select a focusing component with a larger focal length. Thus, the size of the spectral analyzer remains unchanged while its resolution is improved, and the volume of a spectral analyzer with high resolution can be significantly reduced, which is beneficial for integration and application in electronic devices.

[0007] In some possible implementation manners, the optical waveguide member includes a light incident surface, a light emitting surface, and a plurality of reflecting surfaces. The light converged by the focusing member enters the interior of the optical waveguide member through the light incident surface and is reflected to the light emitting surface by the reflecting surfaces to be emitted from the light emitting surface.

[0008] In this implementation, the light converged by the focusing member is transmitted inside the optical waveguide member, which can reduce the loss of light transmission, thereby improving the quality of light transmission and facilitating the spectral analysis of light.

[0009] In some possible implementations, among the multiple reflecting surfaces, the reflecting surface where the incident angle of the light transmitted in the optical waveguide member is less than the total reflection critical angle is the first reflecting surface, and the reflecting surface where the incident angle of the light transmitted in the optical waveguide member is greater than or equal to the total reflection critical angle is the second reflecting surface. The optical waveguide member further includes a reflective film, and the first reflecting surface is provided with the reflective film.

[0010] In this implementation, by providing a reflective film on the first reflecting surface, the light transmitted in the optical waveguide member can undergo total reflection on the first reflecting surface, thereby reducing the loss of light transmission, facilitating the improvement of the quality of light transmission, and improving the accuracy of detection. Among them, the incident angle of the light transmitted in the optical waveguide on the second reflecting surface is greater than or equal to the total reflection critical angle. Therefore, the second reflecting surface can achieve the total reflection function without the aid of a reflective film.

[0011] In some possible implementations, the number of the second reflecting surfaces is one, and the second reflecting surface and the light incident surface at least partially overlap.

[0012] In this implementation, by arranging the light incident surface and the second reflecting surface coplanarly, the optical waveguide member has one surface that can both incident light and totally reflect light, so as to totally reflect the light transmitted in the optical waveguide member, increase the number of reflections of the light in the optical waveguide member, thereby increasing the optical path, facilitating the selection of a focusing member with a larger focal length, achieving higher measurement accuracy, and realizing the miniaturized design of the spectral analyzer. In addition, the light incident surface can achieve total reflection without setting a reflective film, reducing the cost.

[0013] Among them, the optical waveguide member is triangular prism-shaped, so that the optical waveguide member has a smaller size. Thus, on the basis of increasing the optical path of the light between the focusing member and the receiving detector, the space size occupied by the optical waveguide member is also reduced, further improving the size utilization rate of the spectral analyzer and facilitating the miniaturization of the spectral analyzer.

[0014] In some other possible implementations, the number of the second reflecting surfaces can be one or more. One of the second reflecting surfaces can at least partially overlap with the light incident surface and can at least partially overlap with the light output surface.

[0015] In this implementation, the second reflecting surface is coplanar with the light incident surface and the light exiting surface, so that the optical waveguide component has a single surface that can both receive incident light, totally reflect light, and emit light, thereby achieving total internal reflection of the light transmitted within the optical waveguide component, increasing the number of reflections of the light within the optical waveguide component, thus increasing the optical path length, which is conducive to selecting a focusing component with a larger focal length to achieve higher measurement accuracy. In addition, since the light incident surface and the light exiting surface are located on the same surface of the optical waveguide component 14, the focusing component and the receiving detector are located on the same side of the optical waveguide component, which is conducive to reducing the space occupied by the receiving detector, thereby improving the space utilization rate of the spectral analyzer and facilitating the miniaturization of the spectral analyzer.

[0016] Among them, the optical waveguide component can be in the shape of a long strip ladder, and the optical waveguide component can be a symmetric structure, which is conducive to improving the stability of the light transmission path. Among them, the bottom surface of the optical waveguide component can be set as the light incident surface and the light exiting surface, and the waist surface (i.e., the side surface) of the optical waveguide component can be set as the first reflecting surface and a reflective film can be provided to achieve total internal reflection.

[0017] When the light within the optical waveguide component is reflected only 3 times, the light enters through the light incident surface and is reflected to the bottom surface on the waist surface on one side of the optical waveguide component, and is totally reflected on the bottom surface of the optical waveguide component to the waist surface on the other side, and is then reflected to the light exiting surface and exits through the light exiting surface.

[0018] When the light within the optical waveguide component is reflected more than 3 times, the top surface of the optical waveguide component can also be set as the second reflecting surface. The light enters through the light incident surface and is reflected to the bottom surface on the waist surface on one side of the optical waveguide component, then is totally reflected one or more times between the bottom surface and the top surface of the optical waveguide component, and then is totally reflected from the bottom surface of the optical waveguide component to the waist surface on the other side, and is then reflected to the light exiting surface and exits through the light exiting surface.

[0019] In some other possible implementations, the number of second reflecting surfaces is multiple, and one of the second reflecting surfaces at least partially overlaps with the light incident surface, and another second reflecting surface at least partially overlaps with the light exiting surface.

[0020] In this implementation, at least a part of the light incident surface and the light exiting surface can be reused as the second reflecting surface to achieve total internal reflection of the light transmitted within the optical waveguide component, so as to increase the number of reflections of the light within the optical waveguide component, thus increasing the optical path length, which is conducive to selecting a focusing component with a larger focal length to achieve higher measurement accuracy and to realize the miniaturized design of the spectral analyzer. In addition, total internal reflection can be achieved without setting a reflective film on the light incident surface and the light exiting surface, reducing the cost.

[0021] Among them, the optical waveguide component is in the shape of a long prism, and along the length direction of the optical waveguide component, a plurality of the second reflecting surfaces are arranged on both sides of the optical waveguide component.

[0022] In this implementation, since the optical waveguide member is in the shape of a long prism, the optical waveguide member has a long transmission space. And since a plurality of second reflecting surfaces are arranged on opposite sides of the optical waveguide member, the light rays transmitted in the optical waveguide member can be refracted multiple times between the plurality of second reflecting surfaces, thereby increasing the optical path between the focusing member and the receiving detector, and further improving the detection accuracy.

[0023] In some possible implementations, the number of reflecting surfaces is one to simplify the structural design of the optical waveguide member.

[0024] Wherein, the light incident surface and the light exiting surface at least partially overlap, and the receiving detector and the focusing member are located on the same side of the optical waveguide member.

[0025] In this implementation, by designing the light incident surface and the light exiting surface to be coplanar, the size utilization rate of the optical waveguide member is improved. While increasing the optical path, the size of the optical waveguide member is reduced, and the receiving detector and the focusing member can be designed on the same side of the optical waveguide member, improving the space utilization rate, which is beneficial to the miniaturization design of the spectroscopic analyzer.

[0026] Wherein, the light incident surface and the light exiting surface are two adjacent surfaces, the reflecting surface and the light exiting surface are oppositely arranged, and the reflecting surface and the light incident surface are adjacent.

[0027] In this implementation, through the design of the reflecting surface, after the light rays are incident from the light incident surface, they can exit from the surface adjacent to the light incident surface to realize the deflection of the light rays, increasing the optical path. And since the light exiting surface is adjacent to the light incident surface, the receiving detector is arranged on the side of the light exiting surface away from the reflecting surface, which is beneficial to reducing the size of the spectroscopic analyzer in the arrangement direction of the light transmitting member, the collimating and dispersing member, the focusing member and the optical waveguide member, so as to realize the miniaturization design of the spectroscopic analyzer in the arrangement direction of the light transmitting member, the collimating and dispersing member, the focusing member and the optical waveguide member.

[0028] In some possible implementations, the light incident surface and the light exiting surface are oppositely arranged.

[0029] In this implementation, the light incident surface and the light exiting surface are oppositely arranged, which is beneficial to simplifying the structural design of the optical waveguide member to reduce the design cost. In addition, by designing a longer optical waveguide member, more times of light ray deflection can be realized, thereby increasing the optical path, which is beneficial to simplifying the design of increasing the optical path to achieve higher measurement accuracy, and is beneficial to the miniaturization design of the spectrometer.

[0030] In some possible implementations, the optical waveguide member includes a first part and a second part that are bent and connected. The light incident surface is the surface of the first part of the optical waveguide member facing the focusing member, the light exiting surface is the surface of the second part of the optical waveguide member facing the focusing member, and the light incident surface and the light exiting surface are bent and connected.

[0031] In this implementation, through the bent optical waveguide component, the optical waveguide component presents an "L" - shaped structure, so that the focusing component and the receiving detector can be located on the same side of the optical waveguide component, thereby reducing the space occupied by the receiving detector and being conducive to the miniaturization design of the spectral analyzer.

[0032] In some possible implementations, the orthographic projection of the receiving detector on the incident light surface is located between the orthographic projection of the focusing component on the incident light surface and the exit light surface.

[0033] In this implementation, by designing the receiving detector to be located between the focusing component and the second part of the optical waveguide component, the space utilization rate is improved, the occupied space of the receiving detector is reduced, and even the receiving detector multiplexes the space formed by enclosing the light - transmitting component, the collimating and dispersing component, the focusing component and the optical waveguide component. Thus, the receiving detector does not need to occupy additional space, which is conducive to the miniaturization design of the spectral analyzer.

[0034] In some possible implementations, the number of optical waveguide components is one and it is an integral structure.

[0035] In this implementation, the integral - structure optical waveguide component can reduce the influence of interface conversion on light transmission, which is conducive to improving the light - transmission effect of the optical waveguide component.

[0036] In some other implementations, the number of optical waveguide components is multiple, and the multiple optical waveguide components are combined end - to - end, and the multiple optical waveguide components are all located between the focusing component and the receiving detector.

[0037] In this implementation, by combining and arranging multiple optical waveguide components, the light - transmission path can be flexibly designed to adaptively adjust the relative positional relationship among the focusing component, the optical waveguide component and the receiving detector, which is conducive to the spectral analyzer to be designed by combining multiple optical waveguide components to adapt to different models or types of electronic devices.

[0038] In some possible implementations, when the light - transmitting component has a slit, the length of the slit is less than or equal to the length of the receiving detector, and the width of the slit is in the range of 20μm to 200μm.

[0039] In this implementation, the length of the slit is less than or equal to the length of the receiving detector, which is beneficial for all the light passing through the slit to be incident on the receiving detector after transmission, so as to avoid missed detection of light by the receiving detector and improve the accuracy of detection. The slit of the light-transmitting member can limit the quantity and angle of the light entering the spectrometer, and by adjusting the width of the slit, the amount of light entering the spectral analyzer can be controlled, thereby improving the measurement precision and accuracy. For example, the width of the slit can be, but is not limited to, 20μm, or 60μm, or 100μm, or 120μm, or 140μm, or 150μm, or 180μm, or 200μm, or other values between 20μm and 200μm.

[0040] In some other implementations, when the light-transmitting member has an opening, the inner diameter of the opening is in the range of 20μm to 200μm.

[0041] In this implementation, the quantity and angle of the light entering the spectral analyzer can be controlled through the opening on the light-transmitting member to improve the measurement precision and accuracy. The opening can also limit the area of light entry, thereby reducing the interference of stray light and background light and improving the signal-to-noise ratio and resolution of the measurement. At the same time, the opening can also control the transmission direction and diffusion degree of the light, preventing unnecessary light interference and further improving the measurement accuracy and resolution. For example, the inner diameter of the opening can be, but is not limited to, 20μm, or 60μm, or 100μm, or 120μm, or 140μm, or 150μm, or 180μm, or 200μm, or other values between 20μm and 200μm.

[0042] In some possible implementations, the collimating and dispersing member includes a collimating member and a dispersing member, and the collimating member is disposed closer to the light-transmitting member than the dispersing member, and the dispersing member is attached to the surface of the collimating member facing the focusing member.

[0043] In this implementation, the collimating member can provide support for the dispersing member, which is beneficial for the stable installation of the dispersing member.

[0044] In some other possible implementations, the dispersing member and the collimating member are spaced apart.

[0045] In this implementation, a gap is formed between the dispersing member and the collimating member, and the dispersion effect of the dispersing member can be adjusted according to the size of the gap between the dispersing member and the collimating member.

[0046] In some implementations, the spectral analyzer further includes a receiving detector, which is spaced apart from the optical waveguide member and is used to receive the light emitted by the optical waveguide member and convert the optical signal of the received light into an electrical signal, and the electrical signal is used for spectral analysis.

[0047] In this implementation, the receiving detector is the self-structure of the spectral analyzer, which can improve the installation accuracy of the receiving detector, so as to improve the quality of light incident on the receiving detector, thereby improving the detection accuracy.

[0048] In some possible implementations, the receiving detector is a linear array detector.

[0049] In this implementation, by designing the receiving detector as a linear array detector, the measurement speed can be improved, thereby improving the measurement efficiency of the spectral analyzer.

[0050] In some other possible implementations, the receiving detector is a planar array detector.

[0051] In this implementation, by designing the receiving detector as a planar array detector, the light receiving surface of the receiving detector for receiving light is made larger, and the signals detected by multiple detection units are averaged, so as to improve the measurement accuracy.

[0052] In some possible implementations, the spectral analyzer further includes a processor, the processor is electrically connected to the receiving detector, and the processor is configured to receive an electrical signal and perform spectral analysis according to the electrical signal.

[0053] In this implementation, the processor can be an independent processor of the spectral analyzer, so that after the processor performs spectral analysis according to the electrical signal, spectral information can be obtained and the spectral information can be transmitted to the processor in the electronic device, for example, transmitted to the image processor.

[0054] In some other possible implementations, the spectral analyzer can reuse the processor in the electronic device. For example, the spectral analyzer can reuse the image processor. The spectral analyzer transmits the electrical signal received by the receiving detector and converted from the optical signal to the image processor, and performs spectral analysis through the image processor.

[0055] In a second aspect, the present application further provides a camera device, which includes a bracket, a camera, and a spectral analyzer as described in any one of the foregoing. The camera and the spectral analyzer are installed on the bracket.

[0056] In the present application, by providing a spectral analyzer, functions such as color reproduction in shooting, hyperspectral imaging, substance composition analysis, blood sample analysis, blood glucose level detection, water turbidity measurement, and optical alcohol tester can be realized, so as to realize the multi-functionality of the camera device.

[0057] In a third aspect, the present application further provides an electronic device, which includes a spectral analyzer as described in any one of the foregoing; or, the electronic device includes the camera device as described above.

[0058] In the present application, by integrating the spectral analyzer into the electronic device, the multi-functionality of the electronic device can be realized. Brief Description of the Drawings

[0059] Figure 1A is a schematic structural diagram of an electronic device provided by an embodiment of the present application in some embodiments;

[0060] Figure 1B is Figure 1A a partial exploded structural diagram of the electronic device shown;

[0061] Figure 2 is Figure 1A a schematic structural diagram of a spectral analyzer in the electronic device shown in some embodiments;

[0062] Figure 3A is Figure 2 a schematic structural diagram of a light transmissive member in the spectral analyzer shown in some embodiments;

[0063] Figure 3B is Figure 2 a schematic structural diagram of a light transmissive member in the spectral analyzer shown in some other embodiments;

[0064] Figure 4 is Figure 2 a schematic structural diagram of a collimating and dispersing member in the spectral analyzer shown in some embodiments;

[0065] Figure 5A is Figure 1A a schematic structural diagram of a spectral analyzer in the electronic device shown in some other embodiments;

[0066] Figure 5B is Figure 1A a schematic structural diagram of a spectral analyzer in the electronic device shown in some further embodiments;

[0067] Figure 6A is Figure 1A a schematic structural diagram of a spectral analyzer in the electronic device shown in some further embodiments;

[0068] Figure 6B is Figure 1A a schematic structural diagram of a spectral analyzer in the electronic device shown in some further embodiments;

[0069] Figure 7A is Figure 1A a schematic structural diagram of a spectral analyzer in the electronic device shown in some further embodiments;

[0070] Figure 7B is Figure 1A a schematic structural diagram of a spectral analyzer in the electronic device shown in some further embodiments;

[0071] Figure 8A is Figure 2Schematic structural diagram of the receiving detector in the spectral analyzer shown in some embodiments;

[0072] Figure 8B is Figure 2 Schematic structural diagram of the receiving detector in the spectral analyzer shown in some other embodiments. Specific embodiments

[0073] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0074] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Multiple" means at least two.

[0075] The orientation terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", "top", "bottom", "side", etc., are only references to the direction of the accompanying drawings. Therefore, the orientation terms used are for better and clearer illustration and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the embodiments of the present application.

[0076] In the embodiments of the present application, the limitations on the relative position relationships mentioned, such as parallel, perpendicular, alignment, etc. These limitations are for the current technological level and are not absolute strict limitations. A small deviation is allowed, and approximate parallel, approximate perpendicular, approximate alignment, etc. are all acceptable. For example, when A is parallel to B, it means that A and B are parallel or approximately parallel, and the included angle between A and B can be between 0 degrees and 10 degrees. For example, when A is perpendicular to B, it means that A and B are perpendicular or approximately perpendicular, and the included angle between A and B can be between 80 degrees and 100 degrees.

[0077] In the embodiments of the present application, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include one or more of such features.

[0078] Please refer to Figure 1A and Figure 1B , Figure 1A is the schematic structural diagram of the electronic device 100 provided by the embodiments of the present application in some embodiments; Figure 1B is Figure 1APartial exploded structural schematic diagram of the electronic device 100 shown

[0079] In some embodiments, the electronic device 100 may be a mobile phone, a tablet personal computer, a laptop computer, a smart screen, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses, or a VR helmet, etc., which are devices with a camera function. Figure 1A In the embodiment, the electronic device 100 is taken as an example of a mobile phone for description. Of course, other types of electronic devices 100 may also adopt a similar structure, which will not be elaborated hereinafter.

[0080] It can be understood that Figure 1A and Figure 1B only schematically show some components included in the electronic device 100. The actual shape, actual size, actual position, and actual structure of these components are not limited by Figure 1A and Figure 1B The electronic device 100 may also include more or fewer components compared to Figure 1A and Figure 1B those shown.

[0081] In some embodiments, the electronic device 100 may include a camera device 10, a screen 20, and a housing 30. Among them, the screen 20 is used to display images, videos, etc. The screen 20 may include a light-transmitting panel 201 and a display screen 202. The light-transmitting panel 201 and the display screen 202 are stacked and fixedly connected. The light-transmitting panel 201 is mainly used to protect the display screen 202 and prevent dust. The material of the light-transmitting panel 201 includes but is not limited to glass. The display screen 202 may be a flexible display screen or a rigid display screen. For example, the display screen 202 may be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a quantum dot light-emitting diode (QLED) display screen, a liquid crystal display (LCD), etc.

[0082] Exemplarily, the housing 30 is used to protect the internal electronic components of the electronic device 100. The housing 30 may include a cover plate 301, a frame 302, and a camera decorative piece 303. The cover plate 301 is located on the side of the display screen 202 away from the light-transmitting panel 201 and is stacked with the light-transmitting panel 201 and the display screen 202. The frame 302 is fixed to the cover plate 301. Exemplarily, the frame 302 may be fixedly connected to the cover plate 301 by adhesive. The frame 302 may also be an integrally formed structure with the cover plate 301, that is, the frame 302 and the cover plate 301 are a whole structure. The frame 302 is located between the cover plate 301 and the light-transmitting panel 201. The light-transmitting panel 201 may be fixedly adhered to the frame 302. The light-transmitting panel 201, the cover plate 301, and the frame 302 enclose an internal accommodation space of the electronic device 100. The internal accommodation space houses the display screen 202. Among them, the cover plate 301 may be made of materials such as metal, plastic, and glass. The cover plate 301 may be a plate made of a single material, or a plate structure made of multiple materials and spliced by multiple plates. Among them, an installation opening is provided on the cover plate 301, and the camera decorative piece 303 covers and is fixed at the installation opening.

[0083] Exemplarily, the camera device 10 is used to take photos / videos. For example, the camera device 10 is installed inside the housing 30, within the internal accommodation space of the electronic device 100. Among them, the camera device 10 can be used as a rear camera. For example, the light incident surface 141 of the camera device 10 faces the camera decorative part 303. The camera decorative part 303 is used to protect the camera device 10.

[0084] Among them, the camera device 10 can include a spectral analyzer 1, at least one camera 2, and a bracket 3. The spectral analyzer 1 and the camera 2 are installed on the bracket 3. The spectral analyzer 1 is used to receive external light and measure the spectrum to analyze the light components and sense the ambient light, so as to assist the camera 2 in taking pictures.

[0085] In this embodiment, through the spectral analyzer 1, functions such as shooting color restoration, hyperspectral imaging, material composition analysis, blood sample analysis, blood glucose level detection, water turbidity measurement, and optical alcohol tester can be achieved to realize the multifunctionality of the camera device 10.

[0086] Among them, the spectral analyzer 1 can be combined with the camera 2 to achieve shooting color restoration. The camera 2 is used for shooting. At the same time, the spectral analyzer 1 is used to receive the ambient light of the shooting object and perform spectral analysis on the ambient light. According to the spectral analysis results, the photo taken by the camera 2 can be processed and the original color of the shooting object can be restored to improve the quality of the photo.

[0087] Among them, the spectral analyzer 1 can be combined with the camera 2 to achieve the hyperspectral imaging function. Hyperspectral imaging technology can collect the spectral information of each pixel in the image, so as to identify materials or detect specific objects in a complex background. For example, hyperspectral sensing can be used to detect the ore layer of valuable minerals on the rock surface, or to identify specific plants in areas with highly dense vegetation.

[0088] Among them, the spectral analyzer 1 can achieve the function of material composition analysis. The spectral analyzer 1 can analyze the composition of unknown compounds by sensing the unique light emission or absorption wavelengths of light. This technology can be applied to various fields such as geology, environmental science, and medicine.

[0089] Among them, the spectral analyzer 1 can be combined with the camera 2 to achieve the functions of blood sample analysis and detection of parasites, bacteria, and viruses. The spectral analyzer 1 and the camera 2 are combined to form a microscope system, which can count white blood cells or red blood cells for blood sample analysis and detection of parasites, bacteria, and viruses. This technology can be used for the diagnosis and treatment of diseases.

[0090] Among them, the spectral analyzer 1 can be combined with the camera 2 to achieve the function of blood glucose level detection. Specifically, by evaluating the ratio of blue and green spectral components, the blood glucose level can be detected. This technology can provide a convenient means of blood glucose monitoring for diabetic patients.

[0091] Among them, the spectral analyzer 1 can be combined with the camera 2 to achieve the function of water turbidity measurement. Specifically, using the Mie scattering method, the turbidity level of water can be measured by the camera 2 and the spectral analyzer 1. This technology can be used for water quality monitoring and environmental protection.

[0092] Among them, the spectral analyzer 1 can be combined with the camera 2 to form an optical alcohol tester. Based on the difference in evaporation rate caused by the alcohol content in the breath, the alcohol concentration can be measured by the camera 2 and the spectral analyzer 1. This technology can be used in fields such as traffic safety and forensic identification.

[0093] It should be noted that in some other embodiments, the spectral analyzer 1 can also work alone to analyze the composition and structure of substances, measure spectral characteristics, study the interaction between light and matter, etc.

[0094] In some embodiments, the camera decoration 303 protrudes to the side of the cover plate 301 away from the light-transmitting panel 201. In this way, the camera decoration 303 can increase the installation space of the camera device 10 in the thickness direction of the electronic device 100. In some other embodiments, the camera decoration 303 can also be flush with the cover plate 301 or recessed into the internal accommodation space of the electronic device 100.

[0095] Among them, the camera decoration 303 is provided with a through hole 3031. The through hole 3031 allows the scene light to enter the light-incident surface of the camera device 10. In some other embodiments, the electronic device 100 may not include the camera decoration 303. At this time, the mounting opening is no longer provided on the cover plate 301, and the through hole 3031 is provided on the cover plate 301, and the through hole 3031 allows the scene to enter the light-incident surface of the camera device 10.

[0096] In some other embodiments, the camera device 10 can also be used as a front camera. For example, the light-incident surface of the camera device 10 faces the light-transmitting panel 201. An optical path avoidance hole is provided on the display screen 202. The optical path avoidance hole allows the scene light to pass through the light-transmitting panel 201 and then enter the light-incident surface of the camera device 10. In some other embodiments, the electronic device 100 may further include one or more other camera modules (not shown in the figure), and the embodiments of the present application do not make strict limitations on this.

[0097] In some embodiments, such as Figure 1BAs shown, the electronic device 100 may further include a circuit board 40 and an image processor 50. The circuit board 40 and the image processor 50 are located in the internal accommodation space of the electronic device 100. The image processor 50 is fixed to the circuit board 40 and electrically connected to the circuit board 40. The image processor 50 is communicatively connected to the camera device 10. The image processor 50 is configured to obtain image data from the camera device 10 and process the image data. Among them, the communication connection between the camera device 10 and the image processor 50 may include data transmission through electrical connection means such as wire routing, or data transmission may be achieved through coupling or other means. It can be understood that the camera device 10 and the image processor 50 may also be communicatively connected through other means capable of achieving data transmission.

[0098] Among them, the image processor 50 may be communicatively connected to the spectral analyzer 1 and the camera 2 respectively, to receive the spectral information of the spectral analyzer 1 and the image information captured by the camera 2 respectively, and process the image information according to the spectral information, so as to improve the imaging quality.

[0099] In some embodiments, the electronic device 100 may further include an analog-to-digital converter (also referred to as an A / D converter, not shown in the figure). The analog-to-digital converter is connected between the camera device 10 and the image processor 50. The analog-to-digital converter is configured to convert the signal generated by the camera device 10 into a digital image signal and transmit it to the image processor 50, and then the image processor 50 processes the digital image signal, and finally the image or video is displayed through the screen 20.

[0100] In some embodiments, the electronic device 100 may further include a memory (not shown in the figure). The memory is communicatively connected to the image processor 50. After the image processor 50 processes the image digital signal, the image is transmitted to the memory, so that the image can be found from the memory at any time when it is necessary to view the image later and displayed on the screen 20. In some embodiments, the image processor 50 will also compress the processed image digital signal and then store it in the memory to save memory space.

[0101] In some other embodiments, the electronic device 100 may not include the screen 20.

[0102] It can be understood that Figure 1A and Figure 1BThe installation position of the camera device 10 of the electronic device 100 in the illustrated embodiment is merely illustrative, and the present application does not strictly limit the installation position of the camera device 10. In some other embodiments, the camera device 10 may also be installed at other positions of the electronic device 100. For example, the camera device 10 may be installed in the middle of the upper part or the upper right corner of the back of the electronic device 100. In some other embodiments, the electronic device 100 may include a terminal body and an auxiliary component that can rotate, move, or be detached relative to the terminal body, and the camera device 10 may also be provided on the auxiliary component.

[0103] It can be understood that Figure 1A and Figure 1B The electronic device 100 in the illustrated embodiment includes the camera device 10, and the present embodiment does not strictly limit the specific structure of the electronic device 100. In some other embodiments, the electronic device 100 may only include a spectral analyzer 1 and does not include a camera 2.

[0104] Please refer to Figure 2 , Figure 2 is Figure 1A a schematic structural diagram of the spectral analyzer 1 in the illustrated electronic device 100 in some embodiments. Among them, Figure 2 the dashed line with an arrow in it is a schematic illustration of the light transmission path.

[0105] In some embodiments, the spectral analyzer 1 may include a light transmissive member 11, a collimating and dispersing member 12, a focusing member 13, an optical waveguide member 14, and a receiving detector 15. Among them, the light transmissive member 11, the collimating and dispersing member 12, the focusing member 13, the optical waveguide member 14, and the receiving detector 15 are sequentially arranged at intervals along the optical path. Light can sequentially pass through the light transmissive member 11, the collimating and dispersing member 12, the focusing member 13, and the optical waveguide member 14 to be transmitted to the receiving detector 15, and is converted into an electrical signal by the receiving detector 15.

[0106] Exemplarily, the light transmissive member 11 allows light to pass through. The collimating and dispersing member 12 is used to collimate and disperse the light passing through the light transmissive member 11. The focusing member 13 is used to converge the light collimated and dispersed by the collimating and dispersing member 12. The optical waveguide member 14 is used to direct the light converged by the focusing member 13 to the receiving detector 15. Among them, the light between the focusing member 13 and the receiving detector 15 is reflected by the optical waveguide member 14 at least once. The receiving detector 15 is used to convert the optical signal of the light transmitted through the optical waveguide member 14 into an electrical signal, and the electrical signal is used for spectral analysis.

[0107] In this embodiment, the light wave guiding member 14 reflects the light between the focusing member 13 and the receiving detector 15 at least once to extend the optical path between the focusing member 13 and the receiving detector 15, so that the spectral analyzer 1 can select a focusing component with a larger focal length, thereby keeping the size of the spectral analyzer 1 unchanged, improving the resolution of the spectral analyzer 1, significantly reducing the volume of the spectral analyzer 1 with high resolution, and being beneficial to integrated application in the electronic device 100.

[0108] In addition, in this embodiment, the receiving detector 15 is an inherent structure of the spectral analyzer 1, which can improve the installation accuracy of the receiving detector 15, improve the quality of the light incident on the receiving detector 15, and thus improve the detection accuracy.

[0109] It should be noted that in some other embodiments, the spectral analyzer 1 may not include the receiving detector 15, and the receiving detector 15 is an external structure of the spectral analyzer 1, and the relative position between the receiving detector 15 and the spectral analyzer 1 can be flexibly set.

[0110] Among them, the light emitted by the light source diverges after passing through the light transmissive member 11 and enters the collimating and dispersing member 12. The collimating and dispersing member 12 collimates and then disperses the light. The focusing member 13 converges the collimated and dispersed light to the receiving detector 15, and the receiving detector 15 converts the optical signal of the received light into an electrical signal for spectral analysis.

[0111] Among them, the focusing member 13 can be a plano-convex lens, an aspherical lens, a Fresnel lens or other devices with the function of converging light.

[0112] Exemplarily, the light between the focusing member 13 and the receiving detector 15 can be reflected by the light wave guiding member 14 multiple times. By adjusting the number of times the light is reflected by the light wave guiding member 14, the optical path of the light in the light wave guiding member 14 can be increased, so that the spectral analyzer 1 can select a focusing component with a larger focal length, thereby keeping the size of the spectral analyzer 1 unchanged, improving the resolution of the spectral analyzer 1, significantly reducing the volume of the spectral analyzer 1 with high resolution, and being beneficial to integrated application in the electronic device 100.

[0113] Among them, reflecting multiple times means reflecting at least twice. For example, reflecting 2 times, 3 times, 5 times, etc.

[0114] Please refer to Figure 2 、 Figure 3A and Figure 3B , Figure 3A is Figure 2 the schematic structural diagram of the light transmissive member 11 in the spectral analyzer 1 shown in some embodiments; Figure 3B is Figure 2Schematic diagram of the structure of the light-transmitting member 11 in the spectral analyzer 1 shown in some other embodiments.

[0115] In some embodiments, the light-transmitting member 11 may have a slit 111, and the slit 111 is used to allow light to pass through.

[0116] In this embodiment, the slit 111 of the light-transmitting member 11 can limit the quantity and angle of the light entering the spectrometer, and by adjusting the width of the slit 111, the amount of light entering the spectral analyzer 1 can be controlled, thereby improving the measurement accuracy and precision.

[0117] Exemplarily, the width of the slit 111 (refer to W1 in Figure 3A ) is in the range of 20 μm to 200 μm, which is beneficial to limiting the quantity and angle of the light entering the spectrometer to improve the measurement accuracy and precision. For example, the width of the slit 111 can be, but is not limited to, 20 μm, or 60 μm, or 100 μm, or 120 μm, or 140 μm, or 150 μm, or 180 μm, or 200 μm, or other values between 20 μm and 200 μm.

[0118] Wherein, the length of the slit 111 (refer to L1 in Figure 3A ) is less than or equal to the length of the receiving detector 15 (refer to L2 in Figure 2 ), which is beneficial to ensuring that all the light passing through the slit 111 can be incident on the receiving detector 15 after transmission, so as to avoid the receiving detector 15 missing light detection and improve the detection accuracy.

[0119] In some other embodiments, the light-transmitting member 11 may have an opening 112, and the opening 112 is used to allow the light emitted by the light source to pass through.

[0120] In this embodiment, the opening 112 on the light-transmitting member 11 can control the quantity and angle of the light entering the spectral analyzer 1 to improve the measurement accuracy and precision. The opening 112 can also limit the area of light entry, thereby reducing the interference of stray light and background light, and improving the signal-to-noise ratio and resolution of the measurement. At the same time, the opening 112 can also control the transmission direction and diffusion degree of the light, preventing unnecessary light interference, and further improving the measurement accuracy and resolution.

[0121] Exemplarily, the inner diameter of the opening 112 (refer to Figure 3BD1) within the range of 20 μm to 200 μm is conducive to controlling the quantity and angle of light entering the spectral analyzer 1, so as to improve the precision and accuracy of measurement. For example, the inner diameter of the opening 112 can be, but is not limited to, 20 μm, or 60 μm, or 100 μm, or 120 μm, or 140 μm, or 150 μm, or 180 μm, or 200 μm, or other values between 20 μm and 200 μm.

[0122] Please refer to Figure 2 and Figure 4 , Figure 4 is Figure 2 the schematic structural diagram of the collimating and dispersing component 12 in the spectral analyzer 1 shown in some embodiments.

[0123] In some embodiments, the collimating and dispersing component 12 may include a collimating component 121 and a dispersing component 122, and the collimating component 121 is arranged closer to the light-transmitting component 11 than the dispersing component 122, so that the dispersing component 122 can split the collimated light to form multiple diffracted lights. Among them, the diffracted lights may include 0th-order diffracted light, ±1st-order diffracted light, ±2nd-order diffracted light, etc.

[0124] Among them, as Figure 2 shown, different diffracted lights between the collimating and dispersing component 12 and the focusing component 13 are represented by different dotted lines.

[0125] In some examples, the dispersing component 122 can be attached to the surface of the collimating component 121 facing the focusing component 13, so that the collimating component 121 can provide support for the dispersing component 122, which is beneficial to the stable installation of the dispersing component 122.

[0126] Among them, the dispersing component 122 can be prepared separately and then attached to the surface of the collimating component 121 facing the focusing component 13, or the dispersing component 122 can be directly formed on the surface of the collimating component 121 facing the focusing component 13 by etching.

[0127] In some other examples, the dispersing component 122 can be arranged at intervals with the collimating component 121, so that there is a gap between the dispersing component 122 and the collimating component 121, and the dispersion effect of the dispersing component 122 can be adjusted according to the size of the gap between the dispersing component 122 and the collimating component 121.

[0128] Among them, the collimating component 121 can be a device with a collimating beam function such as a plano-convex lens, a Fresnel lens, etc., and the dispersing component 122 can be a device with a dispersing function such as a grating, an interferometer, etc.

[0129] Please refer to again Figure 2, in some embodiments, the optical waveguide 14 may include an incident light surface 141, an exit light surface 142, and at least one reflecting surface 143. The light converged by the focusing member 13 enters the interior of the optical waveguide 14 through the incident light surface 141, and is reflected to the exit light surface 142 via the reflecting surface 143, so as to exit from the exit light surface 142 to the receiving detector 15.

[0130] In this embodiment, the light located between the focusing member 13 and the receiving detector 15 is transmitted inside the optical waveguide 14, which can reduce the loss of light transmission, thereby improving the quality of light transmission and being beneficial to the spectral analysis of light.

[0131] Exemplarily, the number of the reflecting surfaces 143 may be multiple, and the multiple reflecting surfaces 143 may include a first reflecting surface 1431 and a second reflecting surface 1432. Among them, the incident angle of the light transmitted in the optical waveguide 14 on the first reflecting surface 1431 is less than the total reflection critical angle, and the incident angle of the light transmitted in the optical waveguide 14 on the second reflecting surface 1432 is greater than or equal to the total reflection critical angle. The optical waveguide 14 may further include a reflective film 144, and the first reflecting surface 1431 is provided with the reflective film 144.

[0132] In this embodiment, by providing the reflective film 144 on the first reflecting surface 1431, the light transmitted in the optical waveguide 14 can undergo total reflection on the first reflecting surface 1431, thereby reducing the loss of light transmission, being beneficial to improving the quality of light transmission, and improving the detection accuracy. Among them, the incident angle of the light transmitted in the optical waveguide on the second reflecting surface 1432 is greater than or equal to the total reflection critical angle. Therefore, the second reflecting surface 1432 can achieve the total reflection function without the aid of the reflective film 144.

[0133] In some other embodiments, the first reflecting surface 1431 may not be provided with the reflective film 144, and the first reflecting surface 1431 may partially reflect or totally reflect the light transmitted in the optical waveguide 14.

[0134] Exemplarily, the number of the second reflecting surfaces 1432 may be multiple, and one of the second reflecting surfaces 1432 and the incident light surface 141 may at least partially overlap, and the other second reflecting surface 1432 and the exit light surface 142 may at least partially overlap.

[0135] In this embodiment, at least a part of the incident light surface 141 and the exit light surface 142 can be reused as the second reflecting surface 1432 to achieve total reflection of the light transmitted in the optical waveguide 14, so as to increase the number of reflections of the light in the optical waveguide 14, thereby increasing the optical path, being beneficial to selecting a focusing member 13 with a larger focal length to achieve higher measurement accuracy and realizing the miniaturized design of the spectral analyzer 1. In addition, the incident light surface 141 and the exit light surface 142 can achieve total reflection without setting the reflective film 144, reducing the cost.

[0136] Among them, the light incident surface 141 can be determined according to the area where light rays are incident on the optical waveguide member 14. As the light incident area varies, the position of the light incident surface 141 on the optical waveguide member 14 can change. Similarly, the second reflection surface 1432 can be determined according to the area where light rays are reflected within the optical waveguide member 14, and the light exit surface 142 can be determined according to the area where light rays exit the optical waveguide member 14. It should be noted that the light incident surface 141 and one of the second reflection surfaces 1432 can completely coincide, and the light exit surface 142 and the other second reflection surface 1432 can completely coincide.

[0137] Among them, the light incident surface 141 and the light exit surface 142 are arranged oppositely, and the receiving detector 15 and the focusing member 13 are located on two opposite sides of the optical waveguide member 14.

[0138] In this embodiment, the light incident surface 141 and the light exit surface 142 are arranged oppositely, which is beneficial to simplifying the structural design of the optical waveguide member 14 to reduce the design cost. In addition, by designing a longer optical waveguide member 14, more times of light ray folding can be achieved, thereby increasing the optical path, which is beneficial to simplifying the design of increasing the optical path to achieve higher measurement accuracy, and is also beneficial to the miniaturized design of the spectrometer.

[0139] Among them, the optical waveguide member 14 can be in the shape of a long prism. Along the length direction of the optical waveguide member 14, a plurality of second reflection surfaces 1432 are arranged on two opposite sides of the optical waveguide member 14. It should be noted that the plurality of second reflection surfaces 1432 located on the same side of the optical waveguide member 14 can be arranged coplanarly, and at least part of two adjacent second reflection surfaces 1432 can overlap.

[0140] In this embodiment, since the optical waveguide member 14 is in the shape of a long prism, the optical waveguide member 14 has a long transmission space. And since a plurality of second reflection surfaces 1432 are arranged on two opposite sides of the optical waveguide member 14, the light rays transmitted within the optical waveguide member 14 can undergo multiple refractions between the plurality of second reflection surfaces 1432, thereby increasing the optical path between the focusing member 13 and the receiving detector 15, and further improving the detection accuracy.

[0141] In some examples, the number of the optical waveguide members 14 can be one and it is an integral structure.

[0142] In this embodiment, the integral-structured optical waveguide member 14 can reduce the influence of interface conversion on light ray transmission, which is beneficial to improving the light ray transmission effect of the optical waveguide member 14.

[0143] In other examples, the number of the optical waveguide members 14 can be multiple. The multiple optical waveguide members 14 are combined end to end, and all the multiple optical waveguide members 14 are located between the focusing member 13 and the receiving detector 15.

[0144] In this embodiment, by combining multiple optical waveguide components 14, the light transmission path can be flexibly designed to adaptively adjust the relative positional relationship among the focusing component 13, the optical waveguide component 14, and the receiving detector 15. This is beneficial for the spectral analyzer 1 to adapt to different models or types of electronic devices through the combined design of multiple optical waveguide components 14.

[0145] Please refer to Figure 5A and Figure 5B , Figure 5A which Figure 1A is a schematic structural diagram of the spectral analyzer 1 in some other embodiments of the electronic device 100 shown; Figure 5B and Figure 1A is a schematic structural diagram of the spectral analyzer 1 in still some other embodiments of the electronic device 100 shown. Figure 5A and Figure 5B The spectral analyzer 1 in the embodiments shown may include Figure 2 most of the technical features of the spectral analyzer 1 in the embodiments shown. The following mainly describes the differences between the two, and most of the same content between the two will not be elaborated. Among them, Figure 5A and Figure 5B the dashed lines with arrows in are schematic diagrams of the light transmission path.

[0146] In some embodiments, the optical waveguide component 14 may include a first part 14a and a second part 14b that are bent and connected. The incident light surface 141 may be the surface of the first part 14a of the optical waveguide component 14 facing the focusing component 13, and the outgoing light surface 142 is the surface of the second part 14b of the optical waveguide component 14 facing the focusing component 13, and the incident light surface 141 and the outgoing light surface 142 are bent and connected.

[0147] In this embodiment, through the bent optical waveguide component 14, the optical waveguide component 14 presents an "L" - shaped structure, so that the focusing component 13 and the receiving detector 15 can be located on the same side of the optical waveguide component 14, thereby reducing the space occupied by the receiving detector 15 and being beneficial for the miniaturization design of the spectral analyzer 1.

[0148] It should be noted that Figure 5A and Figure 5B the dashed lines in the embodiments shown are schematic diagrams of the division between the first part 14a and the second part 14b of the optical waveguide component 14. It can be understood that the division between the first part 14a and the second part 14b of the optical waveguide component 14 can also be in other ways.

[0149] Exemplarily, the orthographic projection of the receiving detector 15 on the incident light surface 141 is located between the orthographic projection of the focusing component 13 on the incident light surface 141 and the outgoing light surface 142.

[0150] In this embodiment, by designing the receiving detector 15 to be located between the focusing member 13 and the second part 14b of the optical waveguide member 14, the space utilization rate is improved, the occupied space of the receiving detector 15 is reduced, and even the receiving detector 15 multiplexes the space formed by enclosing the light transmissive member 11, the collimating and dispersing member 12, the focusing member 13, and the optical waveguide member 14. As a result, the receiving detector 15 does not need to occupy additional space, which is beneficial to the miniaturized design of the spectral analyzer 1.

[0151] In some other embodiments, the optical waveguide member 14 may include a first part 14a and a second part 14b that are bent and connected. The incident light surface 141 may be the surface of the first part 14a of the optical waveguide member 14 facing the focusing member 13, and the exit light surface 142 may be the surface of the second part 14b of the optical waveguide member 14 facing away from the focusing member 13.

[0152] In this embodiment, through the bent optical waveguide member 14, the optical waveguide member 14 presents an "L" - shaped structure to improve the structural compactness of the spectral analyzer 1. And by setting the exit light surface 142 to be the surface of the second part 14b of the optical waveguide member 14 facing away from the focusing member 13, more installation space is provided for the receiving detector 15, which is beneficial to the installation and arrangement of the receiving detector 15.

[0153] Please refer to Figure 6A and Figure 6B , Figure 6A is Figure 1A a schematic structural diagram of the spectral analyzer 1 in some other embodiments of the electronic device 100 shown in Figure 6B is Figure 1A a schematic structural diagram of the spectral analyzer 1 in some other embodiments of the electronic device 100 shown in Figure 6A and Figure 6B The spectral analyzer 1 shown in the embodiments of Figure 2 can include most of the technical features of the spectral analyzer 1 shown in the embodiments of Figure 6A and Figure 6B The dashed lines with arrows in

[0154] In some embodiments, the number of the second reflection surfaces 1432 can be one, and the second reflection surface 1432 and the incident light surface 141 can at least partially overlap.

[0155] In this embodiment, the second reflection surface 1432 and the light incident surface 141 are coplanarly arranged so that the optical waveguide member 14 has one surface that can both incident light and totally reflect light, thereby achieving total internal reflection of the light transmitted in the optical waveguide member 14, increasing the number of reflections of the light in the optical waveguide member 14, thus increasing the optical path, facilitating the selection of a focusing member 13 with a larger focal length to achieve higher measurement accuracy, and realizing the miniaturized design of the spectral analyzer 1. In addition, total internal reflection can be achieved without setting a reflective film 144 on the light incident surface 141, reducing the cost.

[0156] Among them, the light incident surface 141 can be determined according to the light incident area of the optical waveguide member 14. As the light incident area changes, the position of the light incident surface 141 on the optical waveguide member 14 can change. Similarly, the second reflection surface 1432 can be determined according to the reflection area of the light in the optical waveguide member 14. It should be noted that the light incident surface 141 and the second reflection surface 1432 can completely overlap.

[0157] Among them, the optical waveguide member 14 can be triangular prism-shaped, so that the optical waveguide member 14 has a smaller size. Thus, on the basis of increasing the optical path of the light between the focusing member 13 and the receiving detector 15, the space size occupied by the optical waveguide member 14 is also reduced, thereby improving the size utilization rate of the spectral analyzer 1 and facilitating the miniaturization of the spectral analyzer 1.

[0158] In some embodiments, the number of the second reflection surfaces 1432 can be one or more. One of the second reflection surfaces 1432 and the light incident surface 141 can at least partially overlap, and can at least partially overlap with the light output surface 142.

[0159] In this embodiment, the second reflection surface 1432, the light incident surface 141, and the light output surface 142 are coplanarly arranged so that the optical waveguide member 14 has one surface that can both incident light, totally reflect light, and output light, thereby achieving total internal reflection of the light transmitted in the optical waveguide member 14, increasing the number of reflections of the light in the optical waveguide member 14, thus increasing the optical path, facilitating the selection of a focusing member 13 with a larger focal length to achieve higher measurement accuracy. In addition, since the light incident surface 141 and the light output surface 142 are located on the same surface of the optical waveguide member 14, the focusing member 13 and the receiving detector 15 are located on the same side of the optical waveguide member 14, which is conducive to reducing the space occupied by the receiving detector 15, thereby improving the space utilization rate of the spectral analyzer 1 and facilitating the miniaturization of the spectral analyzer 1.

[0160] Among them, the optical waveguide member 14 can be in the shape of a long trapezoid, and the optical waveguide member 14 can be a symmetric structure, which is beneficial to improving the stability of the light transmission path. Among them, the bottom surface of the optical waveguide member 14 can be set as the light incident surface 141 and the light exit surface 142, and the waist surface (i.e., the side surface) of the optical waveguide member 14 can be set as the first reflection surface 1431 and a reflection film 144 can be provided to achieve total reflection.

[0161] When the light in the optical waveguide member 14 is reflected only 3 times, the light enters through the light incident surface 141 and is reflected to the bottom surface on the waist surface on one side of the optical waveguide member 14, and is totally reflected on the bottom surface of the optical waveguide member 14 to the waist surface on the other side, so as to be reflected to the light exit surface 142 and exit through the light exit surface 142.

[0162] When the light in the optical waveguide member 14 is reflected more than 3 times, the top surface of the optical waveguide member 14 can also be set as the second reflection surface 1432. The light enters through the light incident surface 141 and is reflected to the bottom surface on the waist surface on one side of the optical waveguide member 14, then is totally reflected one or more times between the bottom surface and the top surface of the optical waveguide member 14, and then is totally reflected from the bottom surface of the optical waveguide member 14 to the waist surface on the other side, so as to be reflected to the light exit surface 142 and exit through the light exit surface 142.

[0163] Among them, along the length direction of the optical waveguide member 14, the size of the bottom surface of the optical waveguide member 14 is larger than that of the top surface of the optical waveguide member 14.

[0164] Please refer to Figure 7A and Figure 7B , Figure 7A is Figure 1A the schematic structural diagram of the spectral analyzer 1 in some other embodiments of the electronic device 100 shown; Figure 7B is Figure 1A the schematic structural diagram of the spectral analyzer 1 in some other embodiments of the electronic device 100 shown. Figure 7A and Figure 7B The spectral analyzer 1 shown in the embodiments can include Figure 2 Most of the technical features of the spectral analyzer 1 shown in the embodiments, the main differences between the two will be described below, and most of the same content of the two will not be repeated. Among them, Figure 7A and Figure 7B The dotted lines with arrows in are the schematic of the light transmission path.

[0165] In some embodiments, the number of the reflection surfaces 143 is one to simplify the structural design of the optical waveguide member 14.

[0166] In some examples (please refer to Figure 7A ), the light incident surface 141 and the light exit surface 142 at least partially overlap the optical waveguide member 14, and the receiving detector 15 and the focusing member 13 are located on the same side of the optical waveguide member 14. Among them, the reflection surface 143 and the light incident surface 141 are adjacent surfaces.

[0167] In this embodiment, by designing the light incident surface 141 and the light output surface 142 to be coplanar, the size utilization rate of the optical waveguide component 14 is improved. While increasing the optical path, the size of the optical waveguide component 14 is reduced, and the receiving detector 15 and the focusing component 13 can be designed on the same side of the optical waveguide component 14, improving the space utilization rate and facilitating the miniaturized design of the spectral analyzer 1.

[0168] In other examples (please refer to Figure 7B ), the light incident surface 141 and the light output surface 142 are two adjacent surfaces, the reflection surface 143 and the light output surface 142 are oppositely arranged, and the reflection surface 143 and the light incident surface 141 are adjacent.

[0169] In this embodiment, through the design of the reflection surface 143, after the light enters from the light incident surface 141, it can exit from the surface adjacent to the light incident surface 141 to realize the deflection of the light, increasing the optical path. Since the light output surface 142 is adjacent to the light incident surface 141, the receiving detector 15 is arranged on the side of the light output surface 142 away from the reflection surface 143, which is conducive to reducing the size of the spectral analyzer 1 in the arrangement direction of the light transmissive component 11, the collimating and dispersing component 12, the focusing component 13, and the optical waveguide component 14, so as to realize the miniaturized design of the spectral analyzer 1 in the arrangement direction of the light transmissive component 11, the collimating and dispersing component 12, the focusing component 13, and the optical waveguide component 14.

[0170] It should be noted that the shape of the optical waveguide component 14 and the design of the reflection surface 143 in the above embodiments are only illustrative. In other embodiments, the shape of the optical waveguide component 14 and the reflection surface 143 can be designed in other forms, as long as the light can be reflected inside the optical waveguide component 14 to increase the optical path, and no strict limitation is made here.

[0171] Please refer to Figure 2 , Figure 8A and Figure 8B , Figure 8A is Figure 2 the schematic structural diagram of the receiving detector 15 in the spectral analyzer 1 shown in some embodiments; Figure 8B is Figure 2 the schematic structural diagram of the receiving detector 15 in the spectral analyzer 1 shown in other embodiments.

[0172] In some embodiments, the receiving detector 15 can be a linear array detector.

[0173] In this embodiment, by designing the receiving detector 15 as a linear array detector, the measurement speed can be increased, thereby improving the measurement efficiency of the spectral analyzer 1.

[0174] In other embodiments, the receiving detector 15 can be a planar array detector.

[0175] In this embodiment, the receiving detector 15 is designed as a area array detector, so that the light receiving surface of the receiving detector 15 is larger, and the signals detected by a plurality of detection units are averaged, which can improve the measurement accuracy.

[0176] Please refer to Figure 1B and Figure 2 In some embodiments, the spectral analyzer 1 further includes a processor 16, and the processor 16 is electrically connected to the receiving detector 15. The processor 16 is configured to receive the electrical signal and perform spectral analysis according to the electrical signal.

[0177] In this embodiment, the processor 16 can be an independent processor 16 of the spectral analyzer 1, so that the processor 16 can obtain spectral information after performing spectral analysis on the electrical signal, and transmit the spectral information to the processor 16 in the electronic device 100, for example, to the image processor 50.

[0178] In other embodiments, the spectral analyzer 1 can reuse the processor in the electronic device 100. For example, the spectral analyzer 1 can reuse the image processor 50. The spectral analyzer 1 transmits the electrical signal converted from the optical signal received by the receiving detector 15 to the image processor 50, and performs spectral analysis through the image processor 50.

[0179] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Any arbitrary combination of features in different embodiments is also within the protection scope of the present application. That is to say, the above-described multiple embodiments can also be arbitrarily combined according to actual needs.

[0180] It should be noted that all the above drawings are exemplary illustrations of the present application and do not represent the actual size of the product. And the dimensional proportional relationship between the components in the drawings is not used as a limitation on the actual product of the present application.

[0181] The above are only some embodiments and implementation manners of the present application. The protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, and all should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A spectral analyzer (1), characterized in that, It includes a light-transmitting member (11), a collimating and dispersing member (12), a focusing member (13) and an optical waveguide member (14). The light-transmitting member (11), the collimating and dispersing member (12), the focusing member (13) and the optical waveguide member (14) are arranged at intervals in sequence along the optical path; The light-transmitting member (11) is provided with a slit (111) or an opening (112), and the slit (111) or the opening (112) is used to allow light to pass through; The collimating and dispersing member (12) is used to collimate and disperse the light passing through the slit (111) or the opening (112); The focusing member (13) is used to converge the light collimated and dispersed by the collimating and dispersing member (12); The optical waveguide member (14) is used to transmit the light converged by the focusing member (13). Among them, the light converged by the focusing member (13) is reflected multiple times by the optical waveguide member (14); The light transmitted and emitted by the optical waveguide member (14) is used for spectral analysis.

2. The spectral analyzer (1) according to claim 1, characterized in that, The optical waveguide member (14) includes a light incident surface (141), a light exit surface (142) and a plurality of reflecting surfaces (143). The light converged by the focusing member (13) enters the interior of the optical waveguide member (14) through the light incident surface (141) and is reflected to the light exit surface (142) through the reflecting surfaces (143) to be emitted from the light exit surface (142).

3. The spectral analyzer (1) according to claim 2, characterized in that, Among the plurality of reflecting surfaces (143), the reflecting surface (1431) where the incident angle of the light transmitted in the optical waveguide member (14) is less than the total reflection critical angle, and the reflecting surface (1432) where the incident angle of the light transmitted in the optical waveguide member (14) is greater than or equal to the total reflection critical angle; The optical waveguide member (14) further includes a reflection film (144), and the reflection film (144) is provided on the first reflecting surface (1431).

4. The spectral analyzer (1) according to claim 3, characterized in that, The number of the second reflecting surfaces (1432) is one, and the second reflecting surface (1432) and the light incident surface (141) at least partially overlap; Or, the number of the second reflecting surfaces (1432) is multiple, where one of the second reflecting surfaces (1432) and the light incident surface (141) at least partially overlap, and another second reflecting surface (1432) and the light exit surface (142) at least partially overlap.

5. The spectral analyzer (1) according to claim 4, characterized in that, When the number of the second reflecting surfaces (1432) is one, the optical waveguide member (14) is triangular prism-shaped; When the number of the second reflecting surfaces (1432) is multiple, the optical waveguide member (14) is long prism-shaped, and along the length direction of the optical waveguide member (14), a plurality of the second reflecting surfaces (1432) are arranged on both sides of the optical waveguide member (14).

6. The spectral analyzer (1) according to claim 2, characterized in that, The light incident surface (141) and the light exit surface (142) at least partially overlap.

7. The spectral analyzer (1) according to any one of claims 2 to 4, characterized in that, The light incident surface (141) and the light exit surface (142) are arranged opposite to each other.

8. The spectral analyzer (1) according to any one of claims 2 to 4, characterized in that, The optical waveguide member (14) includes a first part (14a) and a second part (14b) that are bent and connected. The light incident surface (141) is the surface of the first part (14a) of the optical waveguide member (14) facing the focusing member (13), and the light exiting surface (142) is the surface of the second part (14b) of the optical waveguide member (14) facing the focusing member (13), and the light incident surface (141) and the light exiting surface (142) are bent and connected.

9. The spectral analyzer (1) according to any one of claims 1 to 8, characterized in that, The number of the optical waveguide members (14) is one and it is an integral structure; Alternatively, the number of the optical waveguide members (14) is multiple, and the multiple optical waveguide members (14) are combined by connecting end to end, and the multiple optical waveguide members (14) are all located between the focusing member (13) and the receiving detector (15).

10. The spectral analyzer (1) according to any one of claims 1 to 9, characterized in that, When the light transmissive member (11) has the slit (111), the length of the slit (111) is less than or equal to the length of the receiving detector (15), and the width of the slit (111) is in the range of 20 μm to 200 μm; When the light transmissive member (11) has the opening (112), the inner diameter of the opening (112) is in the range of 20 μm to 200 μm.

11. The spectral analyzer (1) according to any one of claims 1 to 10, characterized in that, The collimating and dispersing member (12) includes a collimating member (121) and a dispersing member (122), and the collimating member (121) is arranged closer to the light transmissive member (11) than the dispersing member (122); The dispersing member (122) is attached to the surface of the collimating member (121) facing the focusing member (13), or the dispersing member (122) is arranged at an interval from the collimating member (121).

12. The spectral analyzer (1) according to any one of claims 1 to 11, characterized in that, The spectral analyzer (1) further includes a receiving detector (15), and the receiving detector (15) is arranged at an interval from the optical waveguide member (14), and is used for receiving the light emitted from the optical waveguide member (14) and converting the optical signal of the received light into an electrical signal, and the electrical signal is used for spectral analysis.

13. The spectral analyzer (1) according to claim 12, characterized in that, The receiving detector (15) is a linear array detector, or the receiving detector (15) is a planar array detector.

14. The spectral analyzer (1) according to claim 12 or 13, characterized in that, The spectral analyzer (1) further includes a processor (16), the processor (16) is electrically connected to the receiving detector (15), and the processor (16) is used for receiving the electrical signal and performing spectral analysis according to the electrical signal.

15. A camera device (10), characterized in that, It includes a bracket (3), a camera (2) and the spectral analyzer (1) according to any one of claims 1 to 14, and the camera (2) and the spectral analyzer (1) are mounted on the bracket (3).

16. An electronic device (100), characterized in that, It includes the spectral analyzer (1) according to any one of claims 1 to 14; Alternatively, the electronic device (100) includes the camera device (10) according to claim 15.

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