Optical analysis system and optical analyzer

Abstract

The optical analyzer (100) of the present disclosure includes a solid-state light source emitter (10), a uniform mixing or light splitting element (20, 20'), a first light receiver (30), and a second light receiver (40). The solid-state light source emitter (10) includes a light source (1), which includes a plurality of light emitting elements (13) each emitting light having at least one emission peak wavelength and at least one wavelength range, and light emitted from the plurality of light emitting elements (13) passes through the uniform mixing or light splitting element (20, 20') to form a first light beam (L1) and a second light beam (L2), which becomes a detection light beam (L3) after passing through a fluid to be measured (i.e., after passing through the fluid to be measured (O), a portion of the second light beam (L2) that is not absorbed by the fluid to be measured (O) becomes the detection light beam (L3)). The first receiver (30) receives the first light beam (L1), and the second receiver (40) receives the detection light beam (L3).

Description

[Technical Field]

[0001] The present invention relates to the technical field of transmission-type optical analysis, and more particularly to an optical analysis system and an optical analyzer thereof that receives light from a light source with two light receivers and determines whether the light emission intensity of the light source is attenuated. [Background technology]

[0002] Traditional optical analyzers can be divided into single-beam and double-beam spectrometers. In a single-beam spectrometer, the detection principle is to emit two detection beams from a light source, pass them through corresponding monochromators, and then rotate a beam splitter to adjust the two detection beams so that they pass through the target liquid at absorption 1. Because the target liquid contains different components, it absorbs the detection beams of different wavelengths. The detection beams pass through an absorption cell and are received by a detector, which then obtains the target liquid's absorption spectrum, thereby detecting the physical or chemical properties of the target liquid. However, a single-beam spectrometer only switches between detection beams of different frequencies by rotating the beam splitter mirror. The mirror rotation speed is slow, preventing rapid wavelength switching. Therefore, if the target liquid is a rapidly flowing fluid, the complete absorption spectrum cannot be measured in real time. Furthermore, both detection beams pass through an absorption cell before being received by the detector. Therefore, it is not possible to monitor the light intensity of the original detection beam, making it difficult to determine whether the light source intensity is attenuated in real time.

[0003] As shown in Figure 1, the double-beam spectrometer uses a light source 1 to emit a light beam, which is then split into a detection light path P1 and a comparison light path P2 by a spectrometer 21. In the detection light path P1, the light beam passes through the target liquid located in the absorption cell 3. The target liquid absorbs light at different wavelengths due to its different components. The light beam passing through the absorption cell 3 is received by the first detector 4, which obtains the absorption spectrum of the target liquid. In the comparison light path P2, the light beam is directly received by the second detector 5, which forms a comparison spectrum. Finally, the absorption spectrum and the comparison spectrum are compared to analyze and determine the physical or chemical properties of the target liquid. However, when using multiple mirrors, as shown in Figure 1, a beam splitter R2 is added to change the direction of the comparison light path P2. In addition to the need to improve the sealing of the mirrors to prevent dust, the increased number of mirrors increases the volume of conventional optical analyzers, making them unsuitable for portable applications. In addition, if the light intensity is too low after being split by the spectroscope R1, a spectrum cannot be formed if the light absorption of the liquid to be measured is high. On the other hand, changing the angle of the spectroscope R1 also affects the change in light intensity.

[0004] Therefore, the present invention describes how to effectively improve the above-mentioned problems of traditional single-beam spectrometers and double-beam spectrometers through innovative hardware design, which problems still require developers and related researchers in related industries to continue striving to overcome and solve. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide an optical analysis system and an optical analyzer thereof, which has a plurality of light-emitting elements that can sequentially emit light beams in different wavelength ranges, and is provided with two light receivers, and determines whether the light intensity of the light beams emitted from the light-emitting elements is attenuating by comparing the difference between the light beams received by the two light receivers.

[0006] An optical analyzer according to an embodiment of the present invention includes a solid-state light emitter, a homogeneous mixing or light-splitting element, a first light receiver, and a second light receiver. The solid-state light emitter includes a light source, which includes a plurality of light-emitting elements, each of which emits light having at least one emission peak wavelength and at least one wavelength range. The light-emitting elements are light-emitting diodes, vertical-cavity surface-emitting lasers, or laser diodes, and each of which can emit light discontinuously at a blinking frequency. The blinking frequencies may be the same or different from one another, or may be partially the same or partially different from one another. The light beams emitted from the plurality of light-emitting elements form a first light beam and a second light beam after passing through the homogeneous mixing or light-splitting element. The second light beam becomes a detection light beam when it passes through the fluid to be measured and is not absorbed by the fluid to be measured. The first light receiver receives the first light beam. The second light receiver receives the detection light beam.

[0007] In another embodiment, when the first light beam has a standard intensity, the intensity of the second light beam and the standard intensity have a specific ratio, and the ratio of the detection light beam and the standard intensity is the standard transmittance of the fluid being measured. When the first light beam has an operating intensity, the intensity of the second light beam and the operating intensity have a specific ratio, and the ratio of the detection light beam and the operating intensity is the operating transmittance of the fluid being measured. The standard intensity and the operating intensity are different. The comparison of the standard transmittance and the operating transmittance may be used to determine a change in the composition of the fluid being measured.

[0008] In another embodiment, when the first light beam has a standard light intensity, the first light receiver receives the first light beam and generates a standard light intensity signal, and when the first light beam has an attenuated light intensity, the first light receiver receives the first light beam and generates an attenuated light intensity signal, and compares the amount of change between the standard light intensity signal and the attenuated light intensity signal, and the light dividing element adjusts the light intensity of the first light beam based on the amount of change.

[0009] In another embodiment, the uniform mixing or light dividing element is an optical integrating sphere, the optical integrating sphere including an optical entrance, a first optical exit, and a second optical exit, a first optical receiver aligned with the first optical exit, a second optical receiver aligned with the second optical exit, and a plurality of light beams emitted from a plurality of light emitting elements enter the optical integrating sphere through the optical entrance, the first light beam exits through the first optical exit, and the second light beam exits through the second optical exit.

[0010] In another embodiment, the first light outlet and the light inlet have a central angle of 90 degrees relative to the center of the light integrating sphere, the second light outlet and the light inlet have a central angle of 90 degrees relative to the center of the light integrating sphere, and the first light outlet and the second light outlet have a central angle of 180 degrees relative to the center of the light integrating sphere.

[0011] In another embodiment, the uniform mixing or light dividing element is a shielding plate having a through hole, a first light receiver is provided on the shielding plate and is provided opposite the plurality of light emitting elements, and some of the plurality of light rays emitted from the plurality of light emitting elements become first light rays and are received by the first light receiver, and other parts of the plurality of light rays emitted from the plurality of light emitting elements pass through the through hole and become second light rays.

[0012] In another embodiment, the wavelength ranges of two light-emitting elements corresponding to two adjacent emission peak wavelengths partially overlap to form a continuous wavelength range wider than the wavelength ranges of each of the light-emitting elements, or the wavelength ranges of two light-emitting elements corresponding to two adjacent emission peak wavelengths do not overlap.

[0013] In another embodiment, the light emitting elements (13) of different wavelength ranges emit light at different times.

[0014] In another embodiment, the solid-state light source emitter further includes a substrate that measures constant current bias values ​​of the plurality of light-emitting elements during operation, converts them based on a mathematical formula, a corresponding table or diagram, between the constant current bias of the plurality of light-emitting elements and the PN junction surface temperature of the solid-state light source emitter to obtain the PN junction surface temperature of the solid-state light source, and then obtains a ratio of the light emission intensities of the plurality of light-emitting elements based on a mathematical formula, a corresponding table or diagram, between the light emission intensities of the plurality of light-emitting elements and the PN junction surface temperature, and corrects the light emission intensity values ​​of the plurality of light-emitting elements measured by the first light receiver based on the judgment result.

[0015] In another embodiment, the optical analyzer of the present invention further includes a first processor and a first display device. The solid-state light source emitter, the first light receiver, and the second light receiver are connected to the first processor. The first processor controls the solid-state light source emitter to sequentially emit a plurality of light beams. Light intensity signals of the light received by the first light receiver and the second light receiver are displayed on the first display device.

[0016] In another embodiment, the optical analyzer of the present invention further includes a first wireless communication module connected to the first processor, and light intensity signals of the light received by the first and second optical receivers can be transmitted to an external electronic device via the first wireless communication module, or the first wireless communication module can receive a control signal from the external electronic device.

[0017] In another embodiment, the flashing frequency is between 0.05 times / second and 50,000 times / second.

[0018] In another embodiment, the time interval for turning on the light emitting element at the blinking frequency is between 0.00001 seconds and 10 seconds.

[0019] In another embodiment, the time interval for turning off the light emitting element at the blinking frequency is between 0.00001 seconds and 10 seconds.

[0020] In another embodiment, the difference between two adjacent emission peak wavelengths is 1 nm to 80 nm.

[0021] In another embodiment, the difference between two adjacent emission peak wavelengths is 5 nm to 80 nm.

[0022] In another embodiment, the full width at half maximum of the wavelength corresponding to each emission peak wavelength is 15 nm to 50 nm.

[0023] In another embodiment, the full width at half maximum of the wavelength corresponding to each emission peak wavelength is 15 nm to 40 nm.

[0024] In another embodiment, the difference between two adjacent emission peak wavelengths is 0.5 nm or more.

[0025] In another embodiment, the difference between two adjacent emission peak wavelengths is 1 nm to 80 nm.

[0026] In another embodiment, the full width at half maximum of the wavelength corresponding to at least some of the emission peak wavelengths is greater than 0 nm and not greater than 60 nm.

[0027] An optical analyzer according to an embodiment of the present invention includes a solid-state light source emitter, a first light receiver, and a second light receiver. The solid-state light source emitter includes a light source, and the light source includes a plurality of light-emitting elements, each emitting light having at least one emission peak wavelength and at least one wavelength range. The plurality of light-emitting elements are light-emitting diodes, vertical-cavity surface-emitting lasers, or laser diodes, and each can emit light discontinuously at a blinking frequency. The blinking frequencies may be the same or different from one another, or the blinking frequencies may be partially the same or partially different from one another. Light beams emitted from the plurality of light-emitting elements form a first light beam and a second light beam, and the second light beam becomes a detection light beam after passing through the fluid to be measured (i.e., a portion of the second light beam that is not absorbed by the fluid to be measured when passing through the fluid to be measured becomes the detection light beam). The first light receiver receives the first light beam. The second light receiver receives the detection light beam. When the first light beam has a standard light intensity, the light intensity of the second light beam and the standard light intensity have a specific ratio, and the ratio of the detection light beam and the standard light intensity is the standard transmittance of the fluid to be measured. When the first light beam has an operating light intensity, the light intensity of the second light beam and the operating light intensity have a specific ratio, and the ratio of the detection light beam and the operating light intensity is the operating transmittance of the fluid to be measured. The standard light intensity and the operating light intensity are different. The comparison result between the standard transmittance and the operating transmittance may be used to determine a change in the composition of the fluid to be measured.

[0028] The optical analysis system of the present invention includes an optical analyzer and a liquid transport member, wherein the liquid to be measured is transported within the liquid transport member, a first light receiver and a second light receiver are provided on both sides of the liquid transport member, and the second light ray passes through the liquid transport member to become a detection light ray and is received by the second light receiver.

[0029] In the optical analysis system and optical analyzer of the present invention, the light source has a plurality of light-emitting elements that emit light rays in different wavelength ranges, and by emitting light one by one, it is not necessary to provide a monochromator as in the prior art, and the volume of the optical analyzer can be significantly reduced. Furthermore, the optical analyzer of the present invention is provided with a first light-receiving element and a second light-receiving element, so that it can detect the attenuation state of the light intensity of the light-emitting element. [Brief explanation of the drawings]

[0030] [Figure 1] 1 is a schematic diagram of an optical analyzer in the prior art; [Figure 2] 1 is a schematic diagram of an embodiment of an optical analyzer of the present invention. [Figure 3] FIG. 3 is a cross-sectional view of the optical analyzer of FIG. 2. [Figure 4] FIG. 2 is a schematic diagram of another embodiment of an optical analyzer of the present invention. [Figure 5] FIG. 2 is an emission spectrum diagram of the light-emitting diode of the first embodiment of the solid-state light source emitter of the optical analyzer of the present invention. [Figure 6] FIG. 2 is an emission spectrum diagram of a light-emitting diode of a second embodiment of the solid-state light source emitter of the optical analyzer of the present invention. [Figure 7] FIG. 10 is an emission spectrum diagram of a light-emitting diode of a third embodiment of the solid-state light source emitter of the optical analyzer of the present invention. [Figure 8] 1 is a schematic diagram of one embodiment of a solid state light source emitter of the optical analyzer of the present invention. [Figure 9A] 1 is a flowchart of a light emission intensity correction method for correcting a light emitting element by measuring temperature. [Figure 9B] FIG. 10 is a diagram showing the relationship between the relative intensity and the junction surface temperature of the fourth light-emitting diode of the present invention. [Figure 9C] FIG. 10 is a diagram showing the relationship between forward bias and junction surface temperature of the fourth light-emitting diode of the present invention. [Figure 10] 1 is a schematic diagram of an embodiment of an optical analysis system of the present invention. [Figure 11] 1 is a system block diagram of an embodiment of an optical analyzer according to the present invention. [Figure 12] FIG. 1 is a system block diagram of electronics signally connected to the optical analyzer of the present invention. [Figure 13] FIG. 2 is a schematic diagram of yet another embodiment of an optical analyzer of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0031] 2 and 3 show an embodiment of an optical analyzer of the present invention. As shown in FIGS. 2 and 3, the optical analyzer 100 of this embodiment includes a solid-state light source emitter 10, a uniform mixing or light dividing element 20, a first light receiver 30, and a second light receiver 40. The solid-state light source emitter 10 includes a light source, which includes a plurality of light-emitting elements 13, each emitting light having at least one emission peak wavelength and at least one wavelength range. The plurality of light-emitting elements 13 are light-emitting diodes, vertical-cavity surface-emitting lasers, or laser diodes, and are each capable of discontinuously emitting light at a blinking frequency. The blinking frequencies may be the same or different from one another, or the blinking frequencies may be partially the same or partially different from one another.

[0032] The light beams emitted from the multiple light-emitting elements 13 form a first light beam L1 and a second light beam L2 after passing through the uniform mixing or light-splitting element 20. The second light beam L2 becomes a detection light beam L3 after passing through the fluid to be measured. Simply put, as the second light beam L2 passes through the fluid to be measured, a portion of it is absorbed by the fluid to be measured O, and another portion of it is not absorbed by the fluid to be measured O. The remaining portion of the second light beam L2 that is not absorbed by the fluid to be measured O becomes the detection light beam L3. The first light receiver 30 receives the first light beam L1. The second light receiver 40 receives the detection light beam L3. When the first light beam L1 has a standard light intensity, the light intensity of the second light beam L2 has a specific ratio to the standard light intensity (i.e., the ratio of the standard light intensity of the first light beam L1 divided by the light intensity of the second light beam L2 is the specific ratio), and the ratio of the detection light beam L3 to the standard light intensity is the standard transmittance of the fluid O to be measured. When the first light beam L1 has an operating light intensity, the light intensity of the second light beam L2 has a specific ratio to the operating light intensity, and the ratio of the detection light beam L3 to the operating light intensity is the operating transmittance of the fluid O to be measured, and the standard light intensity and the operating light intensity are different. By comparing the standard transmittance and the operating transmittance, changes in the composition of the fluid O to be measured can be determined based on the comparison results. For example, the fluid to be measured may be an operating chemical required for printed circuit boards (PCBs), semiconductors, the petrochemical industry, or the food processing industry. The standard transmittance indicates that the fluid O to be measured has the required proportions and concentrations of its constituent components during normal operation. If the standard transmittance and the operating transmittance are the same or the difference is within an acceptable range, it can be determined that the composition of the fluid to be measured still meets the user's needs. If the standard transmittance and the operating transmittance are different and the difference is unacceptable, it can be determined that the proportions and concentrations of the constituent components in the fluid to be measured have changed and the fluid to be measured is no longer the operating chemical required during normal operation, and the current operating chemical must be replaced or adjusted. The present invention uses a first light receiver 30 that receives a first light beam L1 and a second light receiver 40 that receives a detection light beam L3 that has passed through the fluid to be measured. This allows for real-time monitoring or dynamic continuous recording of whether the transmittance of the current fluid O to be measured and the proportions and concentrations of its constituent components meet the required quality during normal operation, or even for the service life to be estimated so that preparations for replacing or adjusting the fluid O to be measured can be made in advance.

[0033] The specific ratio may be determined by the uniform mixing or light dividing element 20. For example, if the specific ratio is 50%, it means that when the first light beam L1 has a standard light intensity, the second light beam L2 has the same light intensity as the standard light intensity, and when the first light beam L1 has an operating light intensity, the second light beam L2 has the same light intensity as the operating light intensity. However, the present invention is not limited to the specific ratio being 50%, but is preferably 25% to 75% to ensure that the power of the solid-state light source emitter 10 is not increased too much.

[0034] Furthermore, the detection light beam L3 is generated when the second light beam L2 passes through the fluid to be measured, and is expressed as L3_intensity=L2_intensity*k1, where L3_intensity is the light intensity of the detection light beam L3, L2_intensity is the light intensity of the second light beam L2, and k1 is a value less than or equal to 1 and is related to the transmittance of the fluid to be measured O. When the light intensity of the first light beam L1 and the light intensity of the second light beam L2 show a specific ratio, it is expressed as L1_intensity=L2_intensity*k2, where L1_intensity is the light intensity of the first light beam L1, and k2 is the specific ratio. Therefore, k2 / k1 = L3_intensity / L1_intensity (L3_intensity / L1_intensity is defined as the transmittance of the fluid O to be measured in this invention). That is, when the transmittance of the fluid O to be measured and the specific ratio k2 do not change, the light intensity of the first light beam L1 and the light intensity of the detection light beam L3 are proportional to each other. In other words, when the light intensity of the first light beam L1 changes from the standard light intensity to the operating light intensity and the specific ratio k2 does not change, the ratio of the light intensity of the first light beam L1 to the light intensity of the detection light beam L3 does not change unless the transmittance of the fluid O to be measured changes. When the transmittance of the fluid O to be measured changes, the ratio of the light intensity of the first light beam L1 to the light intensity of the detection light beam L3 also changes accordingly, and k1 changes accordingly. In this way, even if the light intensity of the first light beam L1 and the light intensity of the second light beam L2 are not equal, it is possible to smoothly measure whether the transmittance of the fluid to be measured O changes (i.e., whether the composition of the fluid to be measured O changes).

[0035] The light beams emitted from the multiple light-emitting elements 13 pass through the uniform mixing or light-splitting element 20 to form a first light beam L1 and a second light beam L2. The second light beam L2 passes through the fluid O to be measured and becomes a detection light beam L3. The first light receiver 30 receives the first light beam L1. The second light receiver 40 receives the detection light beam L3. If the first light beam L1 has a standard light intensity, the first light receiver 30 receives the first light beam L1 and generates a standard light intensity signal. If the first light beam L1 has an attenuated light intensity, the first light receiver 30 receives the first light beam L1 and generates an attenuated light intensity signal. The amount of change between the standard light intensity signal and the attenuated light intensity signal is compared, and the uniform mixing or light-splitting element 20 adjusts the light intensity of the first light beam L1 based on the amount of change to obtain a measurement system with a certain range of light intensity. In the present invention, the first light receiver 30 receiving the first light beam L1 can be used to monitor in real time whether the light intensity of the light source of the solid-state light source emitter 10 is attenuating and the amount of change in the light intensity signal attenuation, and can further adjust or replace the light source of the solid-state light source emitter 10. If the light intensity of the first light beam L1 is too low, the light intensity of the detection light beam L3 will also be too low, which may result in inaccurate measurements of the transmittance of the target fluid O. Therefore, in order to maintain constant accuracy in the measured transmittance of the target fluid O, it is necessary to maintain the light intensity of the first light beam L1 within a specific range using the above method.

[0036] The uniform mixing or light dividing element 20 of this embodiment is an integrating sphere, which includes a light inlet 21, a first light outlet 22, and a second light outlet 23. A first light receiver 30 is aligned with the first light outlet 22, and a second light receiver 40 is aligned with the second light outlet 23. A plurality of light beams emitted from a plurality of light emitting elements 13 enter the integrating sphere through the light inlet 21, a first light beam L1 exits through the first light outlet 22, and a second light beam L2 exits through the second light outlet 23. As shown in FIG. 2 , the first light outlet 22 and the light inlet 21 form a central angle of 90 degrees with respect to the center of the integrating sphere, the second light outlet 23 and the light inlet 21 form a central angle of 90 degrees with respect to the center of the integrating sphere, and the first light outlet 22 and the second light outlet 23 form a central angle of 180 degrees with respect to the center of the integrating sphere.

[0037] The light integrating sphere of the uniform mixing or light dividing element 20 of this embodiment is provided within the accommodating housing 6. The solid-state light source emitter 10 and the first light receiver 30 are each provided on a side wall of the accommodating housing 6. The accommodating housing 6 has an opening 61. The opening 61 is aligned with the second light outlet 23 so that the second light ray L2 passes through the opening 61 and is emitted from the accommodating housing 6.

[0038] FIG. 4 shows another embodiment of the optical analyzer of the present invention. As shown in FIG. 4, some of the configuration of this embodiment is the same as that of the embodiment of FIG. 2. Therefore, the same components are designated by the same reference numerals and will not be described again. The uniform mixing or light dividing element 20′ of this embodiment is a shielding plate having a through-hole 24. A first light receiver 30 is provided on the shielding plate and is disposed opposite the plurality of light-emitting elements 13. A portion of the plurality of light beams emitted from the plurality of light-emitting elements 13 becomes a first light beam L1 and is received by the first light receiver 30. Another portion of the plurality of light beams emitted from the plurality of light-emitting elements 13 passes through the through-hole 24 and becomes a second light beam L2. After passing through the fluid to be measured O, the second light beam L2 becomes a detection light beam L3 and is received by the second light receiver 40. Similarly, the intensities of the first light beam L1 and the detection light beam L3 are compared to determine whether they are the same, and the light intensities of the plurality of light beams emitted from the plurality of light-emitting elements 13 are adjusted based on the comparison result.

[0039] Furthermore, in the light beam emitted from the light-emitting element 13 of the light source of the solid-state light source emitter 10 of the present invention, the multiple wavelength ranges of the two light-emitting elements 13 corresponding to two adjacent emission peak wavelengths partially overlap to form a continuous wavelength range wider than the wavelength range of each of the multiple light-emitting elements 13, or the multiple wavelength ranges of the two light-emitting elements 13 corresponding to two adjacent emission peak wavelengths do not overlap.

[0040] As shown in FIG. 5, the wavelength ranges of two light-emitting diodes corresponding to two adjacent emission peak wavelengths partially overlap to form a continuous wavelength range wider than the wavelength ranges of the respective light-emitting diodes. The continuous wavelength range is 180 nm to 2500 nm. In FIG. 2, there are a total of three emission peak wavelengths and corresponding wavelength ranges. These are a first wavelength range corresponding to the first emission peak wavelength (734 nm) of the first light beam, a second wavelength range corresponding to the second emission peak wavelength (810 nm) of the second light beam, and a third wavelength range corresponding to the third emission peak wavelength (882 nm) of the third light beam. The first emission peak wavelength and the second emission peak wavelength are two adjacent emission peak wavelengths, and similarly, the second emission peak wavelength and the third emission peak wavelength are also two adjacent emission peak wavelengths. The first wavelength range corresponding to the first emission peak wavelength is 660 nm to 780 nm, and the second wavelength range corresponding to the second emission peak wavelength of the second light beam is 710 nm to 850 nm. The first and second wavelength ranges partially overlap from 710 nm to 780 nm, so the first wavelength range, together with the second wavelength range, forms a continuous wavelength range from 660 nm to 850 nm. Similarly, the second wavelength range corresponding to the second emission peak wavelength is from 710 nm to 850 nm, and the third wavelength range corresponding to the third emission peak wavelength of the third light ray is from 780 nm to 940 nm. The second and third wavelength ranges partially overlap from 780 nm to 850 nm, so the second wavelength range, together with the third wavelength range, forms a continuous wavelength range from 710 nm to 940 nm. In the present invention, the smaller the overlap between the wavelength ranges of the two light-emitting diodes corresponding to two adjacent emission peak wavelengths, the more preferable. Of course, the wavelength ranges of the two light-emitting diodes corresponding to two adjacent emission peak wavelengths do not have to overlap, as will be described later.

[0041] The difference between two adjacent emission peak wavelengths is 0.5 nm or more, preferably 1 nm to 80 nm, and more preferably 5 nm to 80 nm. In FIG. 2, the difference between the adjacent first emission peak wavelength (734 nm) and second emission peak wavelength (810 nm) is 76 nm, and the difference between the adjacent second emission peak wavelength (810 nm) and third emission peak wavelength (882 nm) is 72 nm. Unless otherwise specified, the limitations of the numerical ranges described in the present invention and claims always include end values. For example, the aforementioned difference between two adjacent emission peak wavelengths of 5 nm to 80 nm means 5 nm or more and 80 nm or less.

[0042] Referring also to the second embodiment of FIG. 6, since the second embodiment is a derivative of the first embodiment, a description of the same parts of the second embodiment as the first embodiment will be omitted. The second embodiment differs from the first embodiment in that the light source of the second embodiment includes five light-emitting diodes: a first light-emitting diode, a fourth light-emitting diode emitting a fourth light ray having a fourth wavelength range, a second light-emitting diode, a fifth light-emitting diode emitting a fifth light ray having a fifth wavelength range, and a third light-emitting diode. The fourth light ray has a fourth emission peak wavelength (772 nm) within the fourth wavelength range, and the fifth light ray has a fifth emission peak wavelength (854 nm) within the fifth wavelength range. In FIG. 3, the emission peak wavelengths are, in ascending order, the first emission peak wavelength (734 nm), the fourth emission peak wavelength (772 nm), the second emission peak wavelength (810 nm), the fifth emission peak wavelength (854 nm), and the third emission peak wavelength (882 nm). The difference between the adjacent first emission peak wavelength (734 nm) and fourth emission peak wavelength (772 nm) is 38 nm, the difference between the adjacent fourth emission peak wavelength (772 nm) and second emission peak wavelength (810 nm) is 38 nm, the difference between the adjacent second emission peak wavelength (810 nm) and fifth emission peak wavelength (854 nm) is 44 nm, and the difference between the adjacent fifth emission peak wavelength (854 nm) and third emission peak wavelength (882 nm) is 28 nm.

[0043] 7, the third embodiment is a derivative of the first and second embodiments, and therefore a description of the same parts of the third embodiment as the first and second embodiments will be omitted. The third embodiment differs from the first embodiment in that the light source of the third embodiment includes 12 light-emitting diodes. In FIG. 8, the emission peak wavelengths of the 12 light-emitting diodes are 734 nm (first emission peak wavelength), 747 nm, 760 nm, 772 nm (fourth emission peak wavelength), 785 nm, 798 nm, 810 nm (second emission peak wavelength), 824 nm, 839 nm, 854 nm (fifth emission peak wavelength), 867 nm, and 882 nm (third emission peak wavelength). The difference between two adjacent emission peak wavelengths of the 12 light-emitting diodes is 13 nm, 13 nm, 12 nm, 13 nm, 13 nm, 12 nm, 14 nm, 15 nm, 15 nm, 13 nm, and 15 nm, respectively. In the first, second, and third embodiments, if the light-emitting element 13 is changed to a laser diode, the difference between two adjacent emission peak wavelengths may be 0.5 nm or more, for example, 1 nm.

[0044] The wavelength full width at half maximum corresponding to at least some of the multiple emission peak wavelengths is greater than 0 nm and not greater than 60 nm. Preferably, the wavelength full width at half maximum corresponding to each emission peak wavelength is greater than 0 nm and not greater than 60 nm. For example, in the first, second, and third examples described above, the emission peak wavelengths are 734 nm (first emission peak wavelength), 747 nm, 760 nm, 772 nm (fourth emission peak wavelength), 785 nm, 798 nm, 810 nm (second emission peak wavelength), 824 nm, 839 nm, 854 nm (fifth emission peak wavelength), 867 nm, and 882 nm (third emission peak wavelength), in ascending order. Preferably, the full width at half maximum of the wavelength corresponding to the first emission peak wavelength of the first light ray, the second emission peak wavelength of the second light ray, the third emission peak wavelength of the third light ray, the fourth emission peak wavelength of the fourth light ray, and the fifth emission peak wavelength of the fifth light ray are greater than 0 nm and less than 60 nm, preferably 15 to 50 nm, and more preferably 15 to 40 nm. The full width at half maximum of the wavelength corresponding to the other undescribed emission peak wavelengths of 747 nm, 760 nm, 785 nm, 798 nm, 824 nm, 839 nm, and 867 nm (FIG. 4) are also greater than 0 nm and less than 60 nm, preferably 15 to 50 nm, and more preferably 15 to 40 nm. In the experimental operation of the present invention, the full width at half maximum of the wavelength corresponding to the emission peak wavelength in the first, second, and third examples described above is 55 nm. When the light emitting element 13 is a laser diode, the full width at half maximum of the wavelength corresponding to each emission peak wavelength is greater than 0 nm and equal to or less than 60 nm, for example, 1 nm.

[0045] The wavelength ranges of the two light-emitting diodes corresponding to the two adjacent emission peak wavelengths described above do not have to overlap. For example, in the first, second, and third embodiments described above, the full width at half maximum corresponding to each emission peak wavelength is 15 nm, and the width of the wavelength range corresponding to each emission peak wavelength (i.e., the difference between the maximum and minimum values ​​of the wavelength range) is 40 nm. The difference between the two adjacent emission peak wavelengths is 80 nm. Also, for example, if the light-emitting element 13 is a laser diode, and the full width at half maximum corresponding to each emission peak wavelength is 1 nm, the width of the wavelength range is 4 nm, and the difference between the two adjacent emission peak wavelengths is 5 nm, the wavelength ranges of the two light-emitting elements (laser diodes) corresponding to the two adjacent emission peak wavelengths do not overlap.

[0046] Preferably, in the first, second, and third embodiments, when an imaging device is operated to generate a spectrogram of the measurement object for detecting the measurement object, the imaging device is a mobile phone or a tablet computer. As described above, the solid-state light source emitter 10 can control each of the multiple light-emitting diodes to light up discontinuously at a respective blinking frequency. The multiple blinking frequencies may be the same or different from each other, or the multiple blinking frequencies may be partially the same or partially different. The blinking frequency is 0.05 times / second to 50,000 times / second. The time interval during which the light-emitting diode is turned on (on) at the blinking frequency is 0.00001 seconds to 10 seconds, and the time interval during which the light-emitting diode is turned off (off) at the blinking frequency is 0.00001 seconds to 10 seconds. The period of the blinking frequency refers to the sum of the consecutive time intervals during which the light-emitting diode is turned on (on) and the consecutive time intervals during which the light-emitting diode is turned off (off), and the period of the blinking frequency is the reciprocal of the blinking frequency. In other words, the blinking frequency cycle can be understood as the sum of the on-time interval during which the multiple light-emitting diodes are continuously lit and the off-time interval during which they are continuously turned off without immediate interruption. The on-time interval is 0.00001 to 10 seconds, and the off-time interval is 0.00001 to 10 seconds. Preferably, the blinking frequency is 0.5 to 50,000 times per second, and more preferably, the blinking frequency is 5 to 50,000 times per second. The aspect in which the multiple light-emitting diodes are discontinuously lit significantly reduces the effect of the thermal energy of the light emitted from the light-emitting diodes on the measurement object (A) and prevents qualitative changes in the measurement object (A) containing organic matter. Therefore, this is particularly suitable for measurement objects (A) that are sensitive to thermal energy, and is particularly suitable when the light emitted from the light-emitting diodes is in the wavelength range of near-infrared light.

[0047] Furthermore, the multiple light-emitting elements 13 emit light sequentially. The aforementioned sequential emission refers to multiple light-emitting elements 13 emitting light in the same wavelength range at different positions not emitting light simultaneously, or the multiple light-emitting elements 13 partially emitting light simultaneously. The aforementioned partial simultaneous emission refers to multiple light-emitting elements 13 emitting light simultaneously, emitting light in different wavelength ranges simultaneously. In another preferred embodiment, to ensure a continuous spectrum and prevent light in two adjacent wavelength ranges from interfering with each other, the multiple light-emitting elements 13 with different wavelength ranges emit light at different times. For example, if six light-emitting elements 13 each have six different wavelength ranges, the six light-emitting elements 13 emit light at different times to ensure that light in two adjacent wavelength ranges does not interfere with each other.

[0048] FIG. 8 shows one embodiment of a solid-state light source emitter according to the present invention. As shown in FIG. 8, the solid-state light source emitter 10 of this embodiment includes a substrate 11, a temperature sensor 12, and a plurality of light-emitting elements 13. The plurality of light-emitting elements 13 and the temperature sensor 12 are provided on a junction surface 111 of the substrate 11. The bias values ​​of the plurality of light-emitting elements 13 are measured, and the junction surface temperature of the junction surface 111 is obtained by conversion based on a mathematical formula, a corresponding table, or a diagram, relating the bias values ​​of the plurality of light-emitting elements 13 to the junction surface temperature. The luminous intensities of the plurality of light-emitting elements 13 are then obtained based on a mathematical formula, a corresponding table, or a diagram, relating the luminous intensities of the plurality of light-emitting elements 13 to the junction surface temperature. A determination is made as to whether the luminous intensities of the plurality of light-emitting elements 13 have changed, and the light intensities of the plurality of light beams emitted from the plurality of light-emitting elements 13 are adjusted based on the determination result.

[0049] In another embodiment of the present invention, the solid-state light source emitter 10 further includes a substrate 11 that measures the constant current bias of the plurality of light-emitting elements 13 during operation, converts the constant current bias of the plurality of light-emitting elements 13 into the PN junction surface temperature of the solid-state light source emitter 10 based on a mathematical formula, a corresponding table or diagram, or a relationship between the constant current bias of the plurality of light-emitting elements 13 and the PN junction surface temperature of the solid-state light source emitter 10, obtains the PN junction surface temperature of the solid-state light source emitter 10, and then obtains the ratio of the light intensity of the plurality of light-emitting elements 13 based on a mathematical formula, a corresponding table or diagram, or a relationship between the light intensity of the plurality of light-emitting elements 13 and the PN junction surface temperature of the solid-state light source emitter 10, and corrects the light intensity values ​​from the plurality of light-emitting elements 13 measured by the first light receiver 30 based on the determination result.

[0050] Due to the inverse proportional relationship between the emission intensity of each LED and its junction temperature, as well as the heat dissipation issue of LEDs, as the continuous operation time of an LED operating at a high current density increases, the junction temperature rises and the emission intensity decreases. Therefore, it is necessary to calibrate the emission intensity using an emission correction method. The emission correction method sequentially includes a calibration relationship acquisition step P01, a forward bias measurement step P02, a proportional relationship acquisition step P03, and a calibration completion step P04. As shown in FIG. 9A, the emission correction method may be performed after the emission method, and the filtering step S03 and inverse transformation step S04 in the spectrum detection method described above may be performed after the emission correction method.

[0051] In the calibration relationship acquisition step P01, a mathematical formula or corresponding table or diagram relating the emission intensity or relative intensity of each light-emitting diode to the junction temperature is acquired. These are typically provided by the light-emitting diode manufacturer. FIG. 9B is a diagram showing the correspondence between the relative intensity and junction temperature of the fourth light-emitting diode. As shown in FIG. 9B, when the junction temperature of the fourth light-emitting diode is 25°C, the fourth emission peak wavelength is 772 nm and the relative intensity is 100%. Also, a mathematical formula or corresponding table or diagram relating the forward bias and junction temperature of each light-emitting diode is acquired. When the junction temperature of the fourth light-emitting diode is 25°C, the fourth emission peak wavelength is 772 nm and the forward bias is 2 volts. FIG. 9C is a diagram showing the correspondence between the forward bias and junction temperature of the fourth light-emitting diode. The methods for obtaining the formula for the relationship between the luminous intensity or relative intensity and the junction temperature, the corresponding table or diagram, and the formula for the relationship between the forward bias of a light-emitting diode and the junction temperature, the corresponding table or diagram, can be found in "Automatic Measurement System for the Contact Temperature of a Light-Emitting Diode," Journal of Science and Engineering Technology, Vol. 3, No. 4, pp. 99-103 (2007) and Taiwan Patent Application Publication No. 200818363, and therefore will not be described here.

[0052] In the forward bias measurement step P02, the forward bias of the light-emitting diode is measured simultaneously during the time period during which the light-emitting diode is turned on (lit), for example, during the time period during which the light-emitting diode is turned on (lit) at a blinking frequency. For example, in the above-mentioned Examples 2 and 3, the blinking frequency of the fourth light-emitting diode is about 90.90 times per second, the time period during which the light-emitting diode is turned on (lit) at the blinking frequency is 1 millisecond (1 ms), and the time period during which the light-emitting diode is turned off (turned off) at the blinking frequency is 10 milliseconds (10 ms). When the forward bias of the fourth light-emitting diode is measured simultaneously during the time period during which the fourth light-emitting diode is turned on (lit) at the blinking frequency, it is 1.9 volts.

[0053] In the proportionality obtaining step P03, the measured forward bias is converted to obtain the junction temperature by referring to the aforementioned equation between the forward bias and the junction temperature of the LED and the corresponding table or diagram. For example, the measured forward bias of the fourth LED is 1.9 volts, and the junction temperature is 50°C as shown in FIG. 9C. The converted junction temperature is then converted to obtain the luminous intensity or relative intensity by referring to the aforementioned equation between the luminous intensity or relative intensity and the junction temperature and the corresponding table or diagram. For example, the junction temperature obtained by reference is 50°C, and the relative intensity of the fourth LED is 83% as shown in FIG. 9B. The converted luminous intensity or relative intensity is then compared with the luminous intensity or relative intensity at a specific junction temperature in the equation between the luminous intensity or relative intensity and the junction temperature and the corresponding table or diagram to obtain the proportionality. For example, if the specific junction surface temperature is 25°C and the relative intensity of the fourth light-emitting diode at 25°C is 100%, and the relative intensity of 100% when the junction surface temperature is 25°C is divided by the relative intensity of 83% when the junction surface temperature is 50°C, the proportionality is 1.20 times.

[0054] In the calibration completion step P04, the emission intensity in the wavelength range corresponding to the LED in the initial spectral energy distribution curve is multiplied by the proportional relationship to calibrate the emission intensity, or the measured spectral signal in the wavelength range corresponding to the LED is multiplied by the proportional relationship to calibrate the spectral signal. The spectral signal in the wavelength range may be a time-domain signal of the measurement object composed of the spectral signal of the measurement object and background noise. For example, the emission intensity obtained by multiplying the fourth emission intensity (17.7 x 107 (au)) corresponding to the fourth LED by 1.20 times the proportional relationship using a photodetector or a computer can be regarded as the emission intensity of the fourth LED at a specific junction temperature (25°C).

[0055] In the present invention, the light emission correction method is sequentially or simultaneously performed on at least one light emitting diode, some light emitting diodes, or all light emitting diodes of the plurality of light emitting diodes of the light source. Preferably, in the present invention, the light emission correction method is simultaneously performed on all light emitting diodes, and the spectral energy distribution curve thus obtained can be regarded as the spectral energy distribution curve at a specific junction surface temperature (25°C), and the acquired spectral signal can be regarded as the spectral signal at a specific junction surface temperature (25°C).

[0056] Fig. 10 shows one embodiment of the optical analysis system of the present invention. As shown in Fig. 10, the optical analysis system of this embodiment further includes a liquid transport member 200 in addition to the optical analyzer 100 shown in Fig. 2. The fluid to be measured is transported within the liquid transport member 200. A uniform mixing or light dividing element 20 and a second light receiver 40 are provided on both sides of the liquid transport member 200. The second light beam L2 passes through the liquid transport member 200 and becomes a detection light beam L3, which is received by the second light receiver 40. While the optical analysis system shown in Fig. 10 includes the optical analyzer 100 shown in Fig. 2, the present invention is not limited thereto. The optical analyzer shown in Fig. 4 is also suitable for the optical analysis system of the present invention.

[0057] 11 is a system block diagram of an embodiment of the optical analyzer of the present invention. As shown in FIG. 11, the optical analyzer of this embodiment further includes a first processor 50, a first display device 60, and a first wireless communication module 70 in addition to the solid-state light emitter 10, the uniform mixing or light dividing element 20, the first light receiver 30, and the second light receiver 40. The solid-state light emitter 10, the first light receiver 30, and the second light receiver 40 are connected to the first processor 50, which controls the solid-state light emitter 10 to sequentially emit multiple light beams. The light intensity signals of the light received by the first light receiver 30 and the second light receiver 40 are displayed on the first display device 60. That is, the first display device 60 displays the absorption spectrum of the detection light beam L3 generated after the second light beam L2 passes through the measurement object. The first wireless communication module 70 is connected to the first processor 50, and the light intensity signals of the light received by the first optical receiver 30 and the second optical receiver 40 can be transmitted to an external electronic device via the first wireless communication module 70, or the first wireless communication module 70 can receive control signals from an external electronic device.

[0058] FIG. 12 shows a system block diagram of an electronic device connected to the optical analyzer of the present invention. As shown in FIG. 12, the external electronic device E may be, for example, a mobile device or a computer. The external electronic device E includes a second processor 110, a second setting unit 120, a second display device 130, and a second wireless communication module 140. The second setting unit 120, the second display device 130, and the second wireless communication module 140 are all connected to the second processor 110. The second wireless communication module 140 is connected to the first wireless communication module 70, and light intensity signals of light received by the first optical receiver 30 and the second optical receiver 40 are transmitted to the external electronic device E via the first wireless communication module 70 and the second wireless communication module 140, and then transmitted to the second display device 130 via the second processor 110 and displayed on the second display device 130. The setting value or command (control signal) input from the second setting unit 120 is also transmitted from the second wireless communication module 140 to the first wireless communication module 70 via the second processor 110, and then transmitted to the first processor 50 to control the solid-state light source emitter 10.

[0059] Furthermore, in the above embodiment, the optical analyzer compares the standard transmittance with the operational transmittance and determines a change in the composition of the fluid to be measured based on the comparison result, and the optical analyzer includes a processor that performs the above operations. In other embodiments, the comparison and analysis may be performed by a computer device or a cloud server electrically connected (wired or wireless) to the optical analyzer.

[0060] 13 is a schematic diagram of another embodiment of the optical analyzer of the present invention. As shown in FIG. 13, unlike FIG. 5, this optical analyzer does not have a uniform mixing or light-splitting element 20' (i.e., it does not have a shielding plate with a through-hole 24). In this embodiment, the light beam emitted from the solid-state light emitter 10 includes a first light beam L1 and a second light beam L2. The first light receiver 30 and the second light receiver 40 are located on either side of the fluid O to be measured. The first light receiver 30 is located in the traveling direction of the first light beam L1 emitted from the solid-state light emitter 10 but not in the traveling direction of the second light beam L2 emitted from the solid-state light emitter 10. The second light receiver 40 is located in the traveling direction of the third light beam L3 formed when the first light beam L1 passes through the fluid O to be measured.

[0061] When the first light beam L1 has a standard light intensity, the light intensity of the second light beam L2 and the standard light intensity have a specific ratio, and the ratio of the detection light beam L3 and the standard light intensity is the standard transmittance of the fluid O to be measured. When the first light beam L1 has an operating light intensity, the light intensity of the second light beam L2 and the operating light intensity have a specific ratio, and the ratio of the detection light beam L3 and the operating light intensity is the operating transmittance of the fluid O to be measured, and the standard light intensity and the operating light intensity are different. In this way, the comparison result between the standard transmittance and the operating transmittance is used to determine changes in the composition of the fluid O to be measured.

[0062] As described above, the present invention has at least one of the following advantages over products in the prior art:

[0063] One object of the present invention is to provide an optical analyzer having a light source with a plurality of light-emitting elements that emit light rays in different wavelength ranges, and by emitting light from each of the light-emitting elements one by one, it is not necessary to provide a monochromator as in the prior art, and the volume of the optical analyzer can be significantly reduced. In addition, the optical analyzer of the present invention is provided with a first light-receiving element and a second light-receiving element, and is therefore capable of detecting the attenuation state of the light intensity of the light-emitting element.

[0064] One object of the present invention is to use an integrating sphere as the uniform mixing or splitting element, which has the technical feature of being small in volume, thereby solving the problem of large volume and difficulty in portability when using a conventional beam splitter. Furthermore, the integrating sphere allows the light beams to be mixed uniformly and then emitted from specific first and second light outlets, further solving the problem of the effect on light intensity caused by changes in the angle of the spectroscope when using a conventional spectroscope.

[0065] One object of the present invention is to use a shielding plate as the uniform mixing or light splitting element. The through holes in the shielding plate and their arrangement can solve the problem of large volume and difficulty in portability that occurs when using a conventional beam splitter. In addition, the through holes can allow some light to pass through, further solving the problem of the influence of changes in the angle of the spectrometer on light intensity when using a conventional spectrometer.

[0066] One object of the present invention is to use a first light receiver that receives a first light beam and a second light receiver that receives a detection light beam that has passed through the fluid to be measured to monitor in real time or dynamically continuously record whether the current transmittance of the fluid to be measured and the proportions and concentrations of its constituent components meet the required quality during normal operation, or to further estimate the service life so that preparations can be made in advance to replace or adjust the fluid to be measured.

[0067] One object of the present invention is to monitor in real time whether the light intensity of the light source of the solid-state light source emitter attenuates and the change amount of the attenuation of the light intensity signal by a first light receiver that receives a first light beam, and further to adjust or replace the light source of the solid-state light source emitter.

[0068] The above description is merely a preferred embodiment of the present invention and does not limit the scope of the present invention. In other words, simple equivalent changes and modifications based on the claims and specification of the present invention all fall within the scope of the present invention. Furthermore, it is not guaranteed that any embodiment or claim of the present invention achieves all of the objectives, advantages, or features disclosed in the present invention. Furthermore, the abstract and title of the invention are merely intended to aid in searching patent documents and do not limit the scope of the present invention. Furthermore, terms such as "first," "second," etc. used in the specification or claims are merely intended to name elements or distinguish between different embodiments or scopes, and are not intended to limit the upper or lower limits of the number of elements. [Explanation of symbols]

[0069] 1 light source R1 spectrometer R2 Beam Splitter 3 Absorption Cell 4. First detector 5 Second detector P1 detection light path P2 Comparison light path 6. Housing 10 Solid State Light Source Emitters 11 Circuit Board 12 Temperature Sensor 13 Light-emitting element 20, 20' Uniform mixing or light dividing element 21 Light Entrance 22 1st light exit 23 Second light exit 24 through holes 30 1st receiver 40 2nd receiver 50 First Processor 60 1st display device 61 Aperture 70 First wireless communication module 100 optical analyzer 110 Second Processor 111 Joint surface 120 Second Setting Unit 130 Second display device 140 second wireless communication module 200 Liquid transport member L1 1st ray L2 2nd ray L3 detection beam O Fluid to be measured E-electronic equipment

Claims

1. A solid-state light source emitter (10) including a light source, the light source including a plurality of light-emitting elements (13) each emitting light having at least one emission peak wavelength and at least one wavelength range, the plurality of light-emitting elements (13) being light-emitting diodes, vertical cavity surface-emitting lasers, or laser diodes, each capable of being discontinuously lit at a blinking frequency, the plurality of blinking frequencies being the same or different from one another, or the plurality of blinking frequencies being partially the same or different from one another; a homogeneous mixing or light dividing element (20), wherein light rays emitted from the plurality of light emitting elements (13) form a first light ray (L1) and a second light ray (L2) after passing through the homogeneous mixing or light dividing element (20), the second light ray (L2) passes through a fluid to be measured (O), and a portion of the second light ray (L2) that is not absorbed by the fluid to be measured (O) forms a detection light ray (L3); a first light receiver (30) that receives the first light beam (L1); a second light receiver (40) for receiving the detection light beam (L3); Including, The uniform mixing or light dividing element (20) is a light integrating sphere, the light integrating sphere including a light entrance (21), a first light exit (22) and a second light exit (23), the first light receiver (30) is aligned with the first light exit (22), the second light receiver (40) is aligned with the second light exit (23), the light beam emitted from the light emitting element (13) enters the light integrating sphere from the light entrance (21), the first light beam (L1) is emitted from the first light exit (22), and the second light beam (L2) is emitted from the second light exit (23). An optical analyzer characterized by:

2. A solid-state light source emitter (10) including a light source, the light source including a plurality of light-emitting elements (13) each emitting light having at least one emission peak wavelength and at least one wavelength range, the plurality of light-emitting elements (13) being light-emitting diodes, vertical cavity surface-emitting lasers or laser diodes, each capable of being discontinuously lit at a blinking frequency, the plurality of blinking frequencies being the same or different from one another, or the plurality of blinking frequencies being partly the same or partly different from one another; a homogeneous mixing or light dividing element (20), wherein light rays emitted from the plurality of light emitting elements (13) form a first light ray (L1) and a second light ray (L2) after passing through the homogeneous mixing or light dividing element (20), the second light ray (L2) passes through a fluid to be measured (O), and a portion of the second light ray (L2) that is not absorbed by the fluid to be measured (O) forms a detection light ray (L3); a first light receiver (30) that receives the first light beam (L1); a second light receiver (40) for receiving the detection light beam (L3); Including, The uniform mixing or light dividing element (20') is a shielding plate having a through hole (24), the first light receiver (30) is provided on the shielding plate and is provided facing the plurality of light emitting elements (13), some of the plurality of light rays emitted from the plurality of light emitting elements (13) become the first light rays (L1) and are received by the first light receiver (30), and other parts of the plurality of light rays emitted from the plurality of light emitting elements (13) pass through the through hole (24) and become the second light rays (L2). An optical analyzer characterized by:

3. When the first light ray (L1) has a standard light intensity, the light intensity of the second light ray (L2) and the standard light intensity show a specific ratio, and the ratio of the detection light ray (L3) and the standard light intensity is the standard transmittance of the fluid to be measured (O); when the first light ray (L1) has an operating light intensity, the light intensity of the second light ray (L2) and the operating light intensity show the specific ratio, and the ratio of the detection light ray (L3) and the operating light intensity is the operating transmittance of the fluid to be measured (O); the standard light intensity and the operating light intensity are different; and a comparison result between the standard transmittance and the operating transmittance is used to determine a change in the composition of the fluid to be measured (O).

2. The optical analyzer according to claim 1.

4. When the first light beam (L1) has a standard light intensity, the first light receiver (30) receives the first light beam (L1) and generates a standard light intensity signal; when the first light beam (L1) has an attenuated light intensity, the first light receiver (30) receives the first light beam (L1) and generates an attenuated light intensity signal; and compares the standard light intensity signal with the attenuated light intensity signal to obtain a change amount; and the uniform mixing or light dividing element (20) adjusts the light intensity of the first light beam (L1) based on the change amount.

2. The optical analyzer according to claim 1.

5. The first light outlet (22) and the light inlet (21) have a central angle of 90 degrees with respect to the center of the light integrating sphere, the second light outlet (23) and the light inlet (21) have a central angle of 90 degrees with respect to the center of the light integrating sphere, and the first light outlet (22) and the second light outlet (23) have a central angle of 180 degrees with respect to the center of the light integrating sphere.

2. The optical analyzer according to claim 1.

6. The wavelength ranges of the two light-emitting elements (13) corresponding to the two adjacent emission peak wavelengths partially overlap to form a continuous wavelength range wider than the wavelength ranges of each of the plurality of light-emitting elements (13), or the wavelength ranges of the two light-emitting elements (13) corresponding to the two adjacent emission peak wavelengths do not overlap.

2. The optical analyzer according to claim 1.

7. The plurality of light-emitting elements (13) emit light sequentially, and the sequential emission means that the plurality of light-emitting elements (13) that emit light in the same wavelength range and are located at different positions do not emit light simultaneously; alternatively, the plurality of light-emitting elements (13) partially emit light simultaneously, and the partial simultaneous emission means that some of the plurality of light-emitting elements (13) emit light simultaneously and simultaneously radiate light in a plurality of different wavelength ranges.

2. The optical analyzer according to claim 1.

8. The solid-state light source emitter (10) further includes a substrate (11) that measures constant current biases of the plurality of light-emitting elements (13) during operation, converts the constant current biases of the plurality of light-emitting elements (13) into PN junction surface temperatures of the solid-state light source emitter (10) based on a mathematical formula, a corresponding table, or a diagram, to obtain the PN junction surface temperatures of the solid-state light source emitter (10), obtains a ratio of the emission intensities of the plurality of light-emitting elements (13) based on a mathematical formula, a corresponding table, or a diagram, to the emission intensities of the plurality of light-emitting elements (13) and the PN junction surface temperatures, and corrects the emission intensity values ​​of the plurality of light-emitting elements (13) measured by the first light receiver (30) based on the determination result.

2. The optical analyzer according to claim 1.

9. The system further includes a first processor (50) and a first display device (60), wherein the solid-state light source emitter (10), the first light receiver (30), and the second light receiver (40) are connected to the first processor (50), the first processor (50) controls the solid-state light source emitter (10) to sequentially emit a plurality of the light beams, and light intensity signals of the light received by the first light receiver (30) and the second light receiver (40) are displayed on the first display device (60).

2. The optical analyzer according to claim 1.

10. The device further includes a first wireless communication module (70) connected to the first processor (50), wherein the light intensity signal of the light received by the first light receiver (30) and the second light receiver (40) can be transmitted to an external electronic device via the first wireless communication module (70), or the first wireless communication module (70) can receive a control signal from the external electronic device.

10. The optical analyzer of claim 9.

11. The flashing frequency is 0.05 times / second to 50,000 times / second.

2. The optical analyzer according to claim 1.

12. The time interval during which the light emitting element (13) is turned on at the blinking frequency is 0.00001 seconds to 10 seconds, and the time interval during which the light emitting element (13) is turned off at the blinking frequency is 0.00001 seconds to 10 seconds.

12. The optical analyzer of claim 11.

13. The difference between the two adjacent emission peak wavelengths is 1 nm to 80 nm.

2. The optical analyzer according to claim 1.

14. the difference between two adjacent emission peak wavelengths is 5 nm to 80 nm; 14. The optical analyzer of claim 13.

15. The full width at half maximum of each of the emission peak wavelengths is 15 nm to 50 nm.

15. The optical analyzer of claim 14.

16. The wavelength full width at half maximum corresponding to each of the emission peak wavelengths is 15 nm to 40 nm.

16. The optical analyzer of claim 15.

17. The difference between the two adjacent emission peak wavelengths is 0.5 nm or more.

2. The optical analyzer according to claim 1.

18. the difference between two adjacent emission peak wavelengths is 1 nm to 80 nm; 18. The optical analyzer of claim 17.

19. a wavelength full width at half maximum corresponding to at least some of the emission peak wavelengths among the plurality of emission peak wavelengths is greater than 0 nm and not greater than 60 nm; 2. The optical analyzer according to claim 1.

20. a solid-state light source emitter (10) including a light source, the light source including a plurality of light-emitting elements (13) each emitting light having at least one emission peak wavelength and at least one wavelength range, the plurality of light-emitting elements (13) being light-emitting diodes, vertical-cavity surface-emitting lasers, or laser diodes, each capable of discontinuously emitting light at a blinking frequency, the blinking frequencies being the same or different from one another, or the blinking frequencies being partially the same or different from one another, the light beams emitted from the plurality of light-emitting elements (13) forming a first light beam (L1) and a second light beam (L2), the second light beam (L2) becoming a detection light beam (L3) after passing through a fluid to be measured (O); a first light receiver (30) that receives the first light beam (L1); a second light receiver (40) for receiving the detection light beam (L3); Including, When the first light ray (L1) has a standard light intensity, the light intensity of the second light ray (L2) and the standard light intensity show a specific ratio, and the ratio of the detection light ray (L3) and the standard light intensity is the standard transmittance of the fluid to be measured (O); when the first light ray (L1) has an operating light intensity, the light intensity of the second light ray (L2) and the operating light intensity show the specific ratio, and the ratio of the detection light ray (L3) and the operating light intensity is the operating transmittance of the fluid to be measured (O); the standard light intensity and the operating light intensity are different; and a comparison result between the standard transmittance and the operating transmittance is used to determine a change in the composition of the fluid to be measured (O). An optical analyzer characterized by:

21. An optical analyzer (100) according to any one of claims 1 to 20; a liquid transport member (200) in which the fluid to be measured (O) is transported within the liquid transport member (200), a uniform mixing or light dividing element (20) and the second light receiver (40) are provided on both sides of the liquid transport member (200), the uniform mixing or light dividing element (20) forms a first light ray (L1) and a second light ray (L2) after light rays emitted from the plurality of light emitting elements (13) pass through the uniform mixing or light dividing element (20), the second light ray (L2) passes through the fluid to be measured (O), and a portion of the second light ray (L2) that is not absorbed by the fluid to be measured (O) forms a detection light ray (L3), and the second light ray (L2) passes through the liquid transport member (200) to become the detection light ray (L3) and be received by the second light receiver (40); An optical analysis system comprising:

Images