Fluorescence spectrum detector and terminal equipment
Through sample pool-free design and close-to-planar design, the huge and complex size of the fluorescence spectrometer is solved, and the portability and low cost of the fluorescence spectrometer is realized, making it easy to integrate into terminal equipment and improve detection accuracy and ease of operation.
Patent Information
- Application Number
- CN202210674890.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-15
- Publication Date
- 2025-01-14
AI Technical Summary
The existing fluorescence spectrometer is huge in size and cannot be integrated into terminal equipment. The testing process is cumbersome and requires professional and technical personnel to operate it. It cannot adapt to the requirements of today's society for portability and low cost of detection instruments.
A fluorescence spectrometer was designed, adopting a sample pool-free design method, including a fluorescent excitation light source module, a fluorescent shaping module, a fluorescent spectrometer and a fluorescent detector. The equipment is reduced by close design and planar design. The volume and the sample pool are eliminated, simplifying system complexity and realizing the integration of the fluorescence spectrometer into the terminal device.
It realizes the miniaturization of the fluorescence spectrometer, which is easy to integrate into the terminal equipment, improves the convenience of use and operation, reduces the equipment volume, and enhances the detection accuracy.
Smart Images
Figure CN119309998A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of fluorescence detection, and in particular to a fluorescence spectrum detector and terminal equipment. Background Art
[0002] Fluorescence spectrum detection is a technology that uses characteristic fluorescence spectra to identify different substances. The existing fluorescence spectrum detector mainly includes the following four components: fluorescence excitation light source, sample cell, optical transmission system and detector. The existing design schemes of the above four modules and the existing design schemes between the various parts result in the existing fluorescence spectrum detector being huge in size, expensive, and cumbersome in the testing process. It requires professional technicians to operate and cannot meet the current society's requirements for portable and low-cost detection instruments. A new design scheme is needed to achieve the miniaturization of fluorescence spectrum detectors. Summary of the invention
[0003] The present application provides a fluorescence spectrum detector and a terminal device, aiming to solve the problem that the existing fluorescence spectrum detector is huge in size and cannot be integrated into the terminal device.
[0004] In a first aspect, an embodiment of the present application provides a fluorescence spectrum detector that can be integrated into a terminal device, including:
[0005] A shell and a fluorescence excitation light source module, a first light hole, a fluorescence shaping module, a second light hole, a fluorescence spectrometer and a fluorescence detector installed in the shell, wherein the fluorescence excitation light source module is provided with a light-collecting hole and can excite the sample to be tested to produce fluorescence, and the generated fluorescence is transmitted to the fluorescence detector in sequence through the light-collecting hole, the first light hole, the fluorescence shaping module, the second light hole and the fluorescence spectrometer.
[0006] In the fluorescence spectrometer of the present application, the shell includes a first shell and a second shell, the fluorescence excitation light source module is installed in the first shell, and the first light hole, the fluorescence shaping module, the second light hole, the fluorescence splitter and the fluorescence detector are installed in the second shell.
[0007] In the fluorescence spectrometer of the present application, the fluorescence excitation light source module includes a substrate and multiple fluorescence excitation light sources, wherein the substrate is provided with a light-collecting hole and multiple fluorescence excitation light source mounting positions, the multiple fluorescence excitation light source mounting positions surround the light-collecting hole, the place where the light beams of the multiple fluorescence excitation light sources converge is the placement position of the sample to be tested, and the multiple fluorescence excitation light sources are inclined at a preset angle relative to the substrate.
[0008] In the fluorescence spectrometer of the present application, the emission wavelengths of the multiple fluorescence excitation light sources are the same or different; and / or the multiple fluorescence excitation light sources include at least one of an LED lamp and a laser chip; and / or the thickness of the fluorescence excitation light source module in the direction from the light hole to the fluorescence detector is not greater than 1 mm; and / or the area of the surface on the substrate where the multiple fluorescence excitation light sources are installed is not greater than 25 mm 2 ; and / or, the divergence angle of the multiple fluorescent excitation light sources is less than 30 degrees.
[0009] In the fluorescence spectrometer of the present application, the fluorescence shaping module includes at least one of a single lens, a multi-lens module and a microlens array, wherein the single lens and the multi-lens module both use Fresnel lenses.
[0010] In the fluorescence spectrometer of the present application, the thickness of the fluorescence shaping module in the direction from the light hole to the fluorescence detector is not more than 1 mm, and the total surface area is not more than 25 mm. 2 .
[0011] In the fluorescence spectrometer of the present application, the fluorescence spectrometer includes at least one of a narrow-band filter, a spectral modulator, a MEMES spectral chip, a quantum dot, a silicon nanowire and a superstructure surface; and / or the fluorescence detector includes at least one of a CMOS planar detector and a CCD planar detector.
[0012] In the fluorescence spectrometer of the present application, the thickness of the fluorescence spectrometer in the direction from the light-collecting hole to the fluorescence detector is not more than 0.5 mm, and the total surface area is not more than 25 mm. 2 ; and / or, the thickness of the fluorescence detector in the direction from the light hole to the fluorescence detector is not more than 1mm, and the total surface area is not more than 25mm 2 .
[0013] In the fluorescence spectrometer of the present application, the corresponding thickness of the first light hole and the second light hole is not greater than 0.2 mm, the diameter of the first light hole is greater than the diameter of the second light hole, and the area of the first light hole is not greater than 8 mm 2 The area of the second light hole is not greater than 0.8mm 2 ; and / or, the distance between the first light hole and the convergence surface of the light beams of the multiple fluorescent excitation light sources is 0.5 to 200 mm, and the area of the first light hole is smaller than the area of the convergence surface of the light beams.
[0014] In a second aspect, the present application provides a terminal device, comprising the fluorescence spectrometer described in any one of claims 1-9.
[0015] The present application provides a fluorescence spectrometer and a terminal device. The fluorescence spectrometer adopts a sample cell-free design, which solves the problem that the existing fluorescence spectrometer is huge in size and cannot be integrated into the terminal device.
[0016] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and cannot limit the disclosure of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 It is a schematic diagram of the structural relationship of a fluorescence spectrum detector provided in an embodiment of the present application;
[0019] Figure 2 It is a schematic diagram of the structural relationship of a fluorescence spectrum detector provided in an embodiment of the present application;
[0020] Figure 3 It is a structural schematic diagram of a fluorescence excitation light source module provided in an embodiment of the present application;
[0021] Figure 4 It is a schematic diagram of the structure of an excitation light shaping lens encapsulating multiple fluorescent excitation light sources provided in an embodiment of the present application;
[0022] Figure 5 This is a design diagram of the background light protection and noise reduction optical path transmission system provided in an embodiment of the present application.
[0023] Description of reference numerals:
[0024] 10. Fluorescent excitation light source module; 101. Fluorescent excitation light source; 102. Substrate; 103. Lighting hole;
[0025] 20. Shell; 201. First shell; 202. Second shell;
[0026] 30. First light hole;
[0027] 40. Fluorescent plastic surgery module;
[0028] 50. Second light hole;
[0029] 60. Fluorescence spectrometer;
[0030] 70. Fluorescence detector;
[0031] 80. Placement position of the sample to be tested;
[0032] 100, fluorescence;
[0033] 110. Excitation light shaping lens;
[0034] 120. Ambient light. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0036] It should be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.
[0037] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0038] The present application provides a fluorescence spectrum detector and a terminal device, aiming to solve the problem that the existing fluorescence spectrum detector is huge in size and cannot be integrated into the terminal device.
[0039] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0040] See also Figure 1 , a schematic diagram of the structural relationship of a fluorescence spectrometer provided in an embodiment of the present application, the fluorescence spectrometer comprises: a housing 20 and a fluorescence excitation light source module 10 installed in the housing 20, a first light through hole 30, a fluorescence shaping module 40, a second light through hole 50, a fluorescence spectrometer 60 and a fluorescence detector 70, wherein the fluorescence excitation light source module 10 is provided with a daylighting hole 103 (the daylighting hole 103 is as shown in FIG. Figure 3 As shown) and can excite the sample to be tested to generate fluorescence 100, and the generated fluorescence 100 is transmitted to the fluorescence detector 70 through the light-collecting hole 103, the first light-through hole 30, the fluorescence shaping module 40, the second light-through hole 50 and the fluorescence splitter 60 in sequence.
[0041] It can be understood that the housing 20 encapsulates the fluorescence excitation light source module 10, the first light hole 30, the fluorescence shaping module 40, the second light hole 50, the fluorescence spectrometer 60 and the fluorescence detector 70, and the housing 20 is designed according to the shape, size and distance between the fluorescence excitation light source module 10, the first light hole 30, the fluorescence shaping module 40, the second light hole 50, the fluorescence spectrometer 60 and the fluorescence detector 70. The fluorescence excitation light source module 10, the first light hole 30, the fluorescence shaping module 40, the second light hole 50, the fluorescence spectrometer 60 and the fluorescence detector 70 are respectively bonded to the housing 20. The material for making the housing is an opaque material, and the thickness of the housing does not exceed 0.5 mm.
[0042] It is understandable that corresponding holes are provided on the housing 20 according to the three-dimensional spatial positions and sizes of the multiple fluorescent excitation light sources 101, the light holes 103, the first light holes 30 and the second light holes 50 to achieve the transmission of the light path.
[0043] It can be understood that, compared with the traditional fluorescence spectrometer, the fluorescence spectrometer of the present application eliminates the sample pool, simplifies the complexity of the system, reduces the size of the fluorescence spectrometer, and can directly place the sample to be tested in a common environment for testing, thereby increasing the convenience of use and the ease of operation. Figure 5 As shown, different from the long-distance foldable anti-background light noise reduction optical path transmission system of the traditional fluorescence spectrometer, the anti-background light noise reduction optical path transmission system of the present application is a linear optical path, which can effectively reduce the volume of the fluorescence spectrometer. The first light hole 30, the fluorescence shaping module 40 and the second light hole 50 can effectively filter the ambient light 120, thereby improving the accuracy of the fluorescence spectrum detection of the sample to be tested.
[0044] See also Figure 2 In some embodiments, the fluorescence spectrometer of the present application includes: a first shell 201 and a fluorescence excitation light source module 10 installed in the first shell 201; a second shell 202 and a first light hole 30, a fluorescence shaping module 40, a second light hole 50, a fluorescence spectrometer 60 and a fluorescence detector 70 installed in the second shell 202, wherein the fluorescence excitation light source module 10 is provided with a light-collecting hole 103 and can excite the sample to be tested to generate fluorescence 100, and the generated fluorescence 100 is transmitted to the fluorescence detector 70 in sequence through the light-collecting hole 103, the first light hole 30, the fluorescence shaping module 40, the second light hole 50 and the fluorescence spectrometer 60.
[0045] In some embodiments, various components integrated in the same housing are designed to be close to each other to reduce the volume of the fluorescence spectrometer.
[0046] It can be understood that the close-fitting design between the various components integrated in the same housing means that the distance between the various components integrated in the same light hole in the direction from the light hole 103 to the fluorescence detector 70 is 0.
[0047] Exemplarily, the first light hole 30, the fluorescence shaping module 40, the second light hole 50, the fluorescence spectrometer 60 and the fluorescence detector 70 integrated in the second shell 202 all adopt a close-fitting design, that is, in the direction from the light hole 103 to the fluorescence detector 70, the interval between the first light hole 30, the fluorescence shaping module 40, the second light hole 50, the fluorescence spectrometer 60 and the fluorescence detector 70 is zero.
[0048] In some embodiments, the fluorescence excitation light source module 10, the first light hole 30, the fluorescence shaping module 40, the second light hole 50, the fluorescence spectrometer 60 and the fluorescence detector 70 are all designed in a planar manner to reduce the volume of the fluorescence spectrometer.
[0049] It should be noted that the fluorescence excitation light source module 10, the first light hole 30, the fluorescence shaping module 40, the second light hole 50, the fluorescence spectrometer 60 and the fluorescence detector 70 all adopt a planar design, which means that the thickness of the fluorescence excitation light source module 10, the first light hole 30, the fluorescence shaping module 40, the second light hole 50, the fluorescence spectrometer 60 and the fluorescence detector 70 in the direction from the light hole 103 to the fluorescence detector 70 is not more than 1 mm.
[0050] The fluorescence spectrometer of the present application can be of any shape. In order to facilitate the integration of the fluorescence spectrometer of the present application into terminal devices such as mobile phones, tablets and computers, in some embodiments, the fluorescence spectrometer of the present application is a regular shape, such as a cylinder, a cuboid, a cube and a triangular prism, and the volume of the fluorescence spectrometer is not more than 180mm 3 .
[0051] It is understandable that when the fluorescence excitation light source module 10 is installed alone in the first housing 201, the volume of the fluorescence spectrum detector is not greater than 180 mm 3 It means that the sum of the volumes of the first shell 30 and the second shell 50 after packaging is completed is not greater than 180mm 3 When the fluorescence excitation light source module 10, the first light hole 30, the fluorescence shaping module 40, the second light hole 50, the fluorescence spectrometer 60 and the fluorescence detector 70 are installed in the same housing, the volume of the fluorescence spectrometer is not more than 180mm 3 It means that the volume of the housing 20 after packaging is completed and all components are installed is no more than 180mm 3 .
[0052] In some embodiments, the fluorescence excitation light source module 10 includes a substrate 102 and a plurality of fluorescence excitation light sources 101. The substrate 102 is used to energize the plurality of fluorescence excitation light sources 101 and has a heat dissipation function. The substrate 102 is provided with a light-collecting hole 103 and a plurality of fluorescence excitation light source mounting positions (not shown). The light-collecting hole 103 is used to collect the fluorescence 100 generated by the sample to be tested after being excited by the fluorescence excitation light source module 10 and to perform a first light filtering on the ambient light 120. The shape of the light-collecting hole 103 is any shape. In some embodiments, the shape of the light-collecting hole 103 includes at least one of the following: circular, square and triangular. The plurality of fluorescence excitation light sources 101 are installed in the plurality of fluorescence excitation light source mounting positions and are tilted at a preset angle to the substrate 102. The plurality of fluorescence excitation light sources 101 include at least one of an LED lamp and a laser chip, which are used to excite the sample to be tested to produce fluorescence 100. The emission wavelengths of the plurality of fluorescence excitation light sources 101 are the same or different. The wavelengths of the plurality of fluorescence excitation light sources are 240-500nm.
[0053] It can be understood that the purpose of tilting the fluorescent excitation light source 101 and the substrate 102 at a preset angle is to make the light beam divergence angles of the multiple fluorescent excitation light sources 101 less than 30 degrees so as to better converge the light beams.
[0054] See also Figure 4 In some embodiments, an excitation light shaping lens 110 is used to encapsulate multiple fluorescent excitation light sources 101 to reduce the beam divergence angle of the multiple fluorescent excitation light sources 101 and increase the optical power density of the excitation light. The excitation light shaping lens 110 includes at least one of a Fresnel lens and a microlens.
[0055] It can be understood that when the emission wavelengths of multiple fluorescence excitation light sources 101 are the same, the fluorescence excitation light source module 10 can make a substance in the sample to be tested produce fluorescence 100; when the emission wavelengths of multiple fluorescence excitation light sources 101 are different, the fluorescence excitation light source module 10 can simultaneously make different substances in the sample to be tested produce fluorescence; since some substances have multiple fluorescence excitation wavelengths, when the wavelengths of multiple fluorescence excitation light sources 101 are different, the fluorescence excitation light source module 10 may also make the same substance produce fluorescence.
[0056] It can be understood that the different emission wavelengths of the multiple fluorescence excitation light sources 101 means that at least two of the multiple fluorescence excitation light sources 101 have different emission wavelengths. Figure 2The fluorescent excitation light source module 10 shown has six fluorescent excitation light sources 101, namely, fluorescent excitation light source 101a, fluorescent excitation light source 101b, fluorescent excitation light source 101c, fluorescent excitation light source 101d, fluorescent excitation light source 101e, and fluorescent excitation light source 101f. For example, the fluorescent excitation light source 101a and the fluorescent excitation light source 101b have different emission wavelengths, but the fluorescent excitation light source 101c, the fluorescent excitation light source 101d, the fluorescent excitation light source 101e, and the fluorescent excitation light source 101f have the same emission wavelengths. At this time, the fluorescent device can simultaneously make three substances produce three-dimensional fluorescence or make the same substance produce three-dimensional fluorescence; for another example, the fluorescent excitation light source 101a, the fluorescent excitation light source 101b, the fluorescent excitation light source 101c, the fluorescent excitation light source 101d, the fluorescent excitation light source 101e, and the fluorescent excitation light source 101f have different emission wavelengths. At this time, the fluorescent device can simultaneously make six substances produce three-dimensional fluorescence or make the same substance produce three-dimensional fluorescence.
[0057] It can be understood that the substrate 102 includes a circuit board and a heat sink, and the circuit board and the heat sink are designed to be close together. The circuit board is used to energize the multiple fluorescent excitation light sources 101, and the heat sink is used to dissipate heat. The installation positions of the multiple fluorescent excitation light sources are designed on the heat sink, which can be grooves designed on the heat sink, or the base of the fluorescent excitation light source 101 installed on the heat sink. The grooves and the base of the fluorescent excitation light source 101 can make the fluorescent excitation light source 101 tilted at a preset angle.
[0058] In some embodiments, the thickness of the fluorescence excitation light source module 10 in the direction from the light hole 103 to the fluorescence detector 70 is not greater than 1 mm, and the area of the surface where the multiple fluorescence excitation light source installation positions are located on the substrate 102 is not greater than 25 mm. 2 , in order to reduce the volume of the fluorescence spectrometer.
[0059] See also Figure 1 , Figure 2 and Figure 3 The place where the light beams of multiple fluorescent excitation light sources 101 converge is the placement position 80 of the sample to be tested.
[0060] It can be understood that the point where the light beams of multiple fluorescent excitation light sources 101 converge as the sample placement position 80 to be tested means that the sample placement position 80 to be tested can be the light beam convergence point of multiple fluorescent excitation light sources 101 in the fluorescent excitation light source module 10, or it may not be the light beam convergence point of multiple fluorescent excitation light sources 101, but it must be ensured that the light beam of each fluorescent excitation light source 101 in the fluorescent excitation light source module 10 can irradiate the surface of the sample to be tested.
[0061] In some embodiments, the fluorescence excitation light source module 10 further includes a logic chip for controlling a switching circuit of each fluorescence excitation light source 101 , so that multiple fluorescence excitation light sources 101 can be powered on as needed, thereby achieving a wavelength-tunable setting of the fluorescence excitation light source module 10 .
[0062] For example, see Figure 3 The fluorescence excitation light source module 10 is provided with 6 fluorescence excitation light sources 101. The wavelengths of the 6 fluorescence excitation light sources 101a, 101b, 101c, 101d, 101e, and 101f are 250nm, 270nm, 310nm, 365nm, 400nm, and 450nm, respectively. According to the detection requirements, ultraviolet light with wavelengths of 250nm, 310nm, and 365nm is required to irradiate the substance to be tested to produce fluorescence. At this time, the detection personnel only need to power on the fluorescence excitation light sources 101a, 101c, and 101d according to the setting of the logic chip.
[0063] Please refer to Figure 5 The first light hole 30 is a through hole of any geometric shape, which is used to filter the fluorescence 100 collected by the daylight hole 103 for the second time. The filtering rate of the ambient light 120 after the fluorescence 100 passes through the first light hole 30 can reach more than 95%. The distance between the first light hole 30 and the light beam convergence surface of the multiple fluorescence excitation light sources 101 is 0.5 to 200 mm. When the distance is less than 0.5 mm, it cannot be detected. When the distance is greater than 200 mm, the optical power density of the fluorescence 100 collected by the daylight hole 103 will be reduced.
[0064] In some embodiments, the shape of the first light hole 30 includes at least one of the following: circular, square and triangular. The area of the first light hole 30 is not greater than 8 mm 2 , can be completely covered by the area of the light hole 103, and the area of the first light hole 30 is greater than 8mm 2 When the ambient light is reduced, the filtering rate of ambient light will be reduced.
[0065] It can be understood that the first light hole 30 can be completely covered by the light hole 103, which means that not only the area of the first light hole 30 is required to be not larger than the area of the light hole 103, but also that when the first light hole 30 and the light hole 103 overlap, the first light hole 30 can completely fall within the light hole 103.
[0066] In some embodiments, the thickness of the body of the first light through hole 30 (the transparent sheet used to make the light through hole) is not greater than 0.2 mm, so as to reduce the volume of the fluorescence spectrometer.
[0067] In some embodiments, the first light through hole 30 and the light-collecting hole 103 may be combined into one and disposed on the substrate 102 to reduce the volume of the fluorescence spectrometer.
[0068] It is understandable that the area of the hole after the first light hole 30 and the light hole 103 are combined is not greater than 8mm 2 The first light hole 30 and the light-collecting hole 103 are combined into one hole, which is used to collect the fluorescence 100 generated by the sample to be tested after being excited by the fluorescence excitation light source module 10 and perform the first light filtering on the ambient light.
[0069] The fluorescence shaping module 40 is used to reduce the beam divergence angle of the fluorescence 100 and increase the optical power density of the fluorescence 100. In some embodiments, the fluorescence shaping module 40 includes at least one of a single lens, a multi-lens module and a microlens array, wherein the single lens and the multi-lens module are both Fresnel lenses.
[0070] In some embodiments, the thickness of the fluorescence shaping module 40 in the direction from the light hole 103 to the fluorescence detector 70 is not greater than 1 mm, and the total surface area is not greater than 25 mm. 2 , in order to reduce the volume of the fluorescence spectrometer.
[0071] Please refer to Figure 5 The second light-through hole 50 is a through hole of any geometric shape, which is used to filter the third ambient light 120 of the fluorescent light 100 shaped by the fluorescent light shaping module 40. The filtering rate of the ambient light 120 after the fluorescent light 100 passes through the second light-through hole 50 can reach more than 99.999%. The area of the second light-through hole 50 is smaller than that of the first light-through hole 30.
[0072] It can be understood that when the light-collecting hole 103 and the first light-through hole 30 are combined into one on the substrate 102 , the second light-through hole 50 is used to perform a second ambient light filtering on the fluorescent light 100 shaped by the fluorescent light shaping module 40 .
[0073] In some embodiments, the shape of the second light hole 50 includes at least one of the following: circular, square and triangular. The area of the second light hole 50 is not greater than 0.8 mm 2 , can be completely covered by the area of the light hole 30, and the area of the second light hole 50 is greater than 0.8mm 2 When the ambient light is reduced, the filtering rate of ambient light will be reduced.
[0074] It can be understood that the first light hole 30 can be completely covered by the light hole 103, which means that not only the area of the second light hole 50 is required to be not larger than the area of the light hole 50, but also that when the second light hole 50 overlaps with the first light hole 30, the second light hole 50 is completely within the first light hole 30.
[0075] It can be understood that the light hole 103, the first light hole 30 and the second light hole 50 all have specifically designed three-dimensional spatial positions, which can ensure that when the fluorescent excitation light source 101 of different wavelengths irradiates the sample to be tested, the fluorescence 100 comes from the same position of the sample to be tested, thereby improving the accuracy of fluorescence detection.
[0076] The fluorescence spectrometer 60 is used to perform spectroscopic processing on the fluorescence 100. In some embodiments, the fluorescence spectrometer 60 includes at least one of a narrow-band filter, a spectral modulator, a MEMES spectral chip, a quantum dot, a silicon nanowire, and a superstructure surface.
[0077] It is understandable that each fluorescence spectrometer 60 has a variety of different models, and each model allows a different wavelength range to be transmitted. In practical applications, a suitable fluorescence spectrometer needs to be selected according to the fluorescence wavelength of the substance to be tested.
[0078] Exemplarily, the narrow-band filter of model A allows the transmission of fluorescence wavelengths of 600-800nm, and the narrow-band filter of model B allows the transmission of fluorescence wavelengths of 300-600nm. If the fluorescence wavelength of the sample to be tested is 550nm, then the narrow-band filter of model B is selected as the fluorescence spectrometer.
[0079] In some embodiments, the thickness of the fluorescence spectrometer 60 in the direction from the light-collecting hole 103 to the fluorescence detector 70 is not greater than 0.5 mm, and the total surface area is not greater than 25 mm. 2 , in order to reduce the volume of the fluorescence spectrometer.
[0080] The fluorescence detector 70 is used to detect the signal of the fluorescence 100. In some embodiments, the fluorescence detector 70 includes at least one of a CMOS (Complementary Metal-Oxide-Semiconductor) planar detector and a CCD (Charge Coupled Device) planar detector.
[0081] In some embodiments, the thickness of the fluorescence detector 70 from the light hole 103 to the fluorescence detector 70 is not greater than 1 mm, and the total surface area is not greater than 25 mm. 2 , in order to reduce the volume of the fluorescence spectrometer.
[0082] The terminal device provided in the embodiment of the present invention includes the above-mentioned fluorescence spectrum detector, which can perform fluorescence detection on the substance to be detected.
[0083] In some embodiments, the terminal device includes at least one of a mobile phone, a tablet and a computer.
[0084] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A fluorescence spectrum detector, characterized in that: include: A shell and a fluorescence excitation light source module, a first light hole, a fluorescence shaping module, a second light hole, a fluorescence spectrometer and a fluorescence detector installed in the shell, wherein the fluorescence excitation light source module is provided with a light-collecting hole and can excite the sample to be tested to produce fluorescence, and the generated fluorescence is transmitted to the fluorescence detector in sequence through the light-collecting hole, the first light hole, the fluorescence shaping module, the second light hole and the fluorescence spectrometer.
2. The fluorescence spectrum detector according to claim 1, characterized in that: The shell includes a first shell and a second shell. The fluorescence excitation light source module is installed in the first shell. The first light hole, the fluorescence shaping module, the second light hole, the fluorescence spectrometer and the fluorescence detector are installed in the second shell.
3. The fluorescence spectrum detector according to claim 1, characterized in that: The fluorescence excitation light source module includes a substrate and multiple fluorescence excitation light sources, wherein the substrate is provided with a light-collecting hole and multiple fluorescence excitation light source mounting positions, the multiple fluorescence excitation light source mounting positions surround the light-collecting hole, the place where the light beams of the multiple fluorescence excitation light sources converge is the placement position of the sample to be tested, and the multiple fluorescence excitation light sources are inclined at a preset angle relative to the substrate.
4. The fluorescence spectrum detector according to claim 1, characterized in that: The emission wavelengths of the multiple fluorescence excitation light sources are the same or different; and / or the multiple fluorescence excitation light sources include at least one of an LED lamp and a laser chip; and / or the thickness of the fluorescence excitation light source module in the direction from the light hole to the fluorescence detector is not greater than 1 mm; and / or the area of the surface on the substrate where the multiple fluorescence excitation light sources are installed is not greater than 25 mm 2 ; and / or, the divergence angle of the multiple fluorescent excitation light sources is less than 30 degrees.
5. The fluorescence spectrum detector according to claim 1, characterized in that: The fluorescence shaping module includes at least one of a single lens, a multi-lens module and a microlens array, wherein the single lens and the multi-lens module both adopt Fresnel lenses.
6. The fluorescence spectrum detector according to claim 5, characterized in that: The thickness of the fluorescence shaping module in the direction from the light hole to the fluorescence detector is not more than 1mm, and the total surface area is not more than 25mm 2 .
7. The fluorescence spectrum detector according to claim 1, characterized in that: It includes at least one of a narrowband filter, a spectral modulator, a MEMES spectral chip, a quantum dot, a silicon nanowire and a superstructure surface; and / or the fluorescence detector includes at least one of a CMOS planar detector and a CCD planar detector.
8. The fluorescence spectrum detector according to claim 5, characterized in that: The thickness of the fluorescence spectrometer in the direction from the light-collecting hole to the fluorescence detector is not more than 0.5 mm, and the total surface area is not more than 25 mm 2 ; and / or, the thickness of the fluorescence detector in the direction from the light hole to the fluorescence detector is not more than 1mm, and the total surface area is not more than 25mm 2 .
9. The fluorescence spectrum detector according to claim 1, characterized in that: The corresponding thickness of the first light-through hole and the second light-through hole is not greater than 0.2 mm, the diameter of the first light-through hole is greater than the diameter of the second light-through hole, and the area of the first light-through hole is not greater than 8 mm 2 The area of the second light hole is not greater than 0.8mm 2 ; and / or, the distance between the first light hole and the convergence surface of the light beams of the multiple fluorescent excitation light sources is 0.5 to 200 mm, and the area of the first light hole is smaller than the area of the convergence surface of the light beams.
10. A terminal device, characterized in that: A fluorescence spectrometer comprising the fluorescence spectrometer described in any one of claims 1 to 9.