JP2019095280A - Spectroscopic measurement system and spectroscopic measurement method - Google Patents

Abstract

To provide a spectroscopic measurement system and a spectroscopic measurement method with which it is possible to examine spectral characteristics while specifying a measured portion by an image at measurement time.SOLUTION: According to the present invention, a splitter element has a splitter face and emits two images, one passing and one reflecting an incident image, separately by the splitter face. A fiber captures on the incident side a measurable range of light from one image emitted by the splitter element with a plurality of optical fibers and emits it from the emission side to a spectroscopic imaging unit. The spectroscopic imaging unit separates the light entered from the fiber into spectral components and has an image formed on a sensor, and outputs it as pictorial image information to a processing device. A camera captures the other image emitted by the splitter element as a pictorial image and outputs it to the processing device. The processing device executes the process of calculating spectral characteristics on the basis of information from the spectroscopic imaging unit, and also executes a process for causing the measurement range captured by the fiber to be displayed on the pictorial image captured by the camera.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a spectrometry system and method, and more particularly to a spectrometry system and method capable of measuring spectral characteristics in combination with a captured image.

  Conventionally, when the spectral characteristics of the object to be measured are examined, light from the object to be examined can be received from the fiber to examine the spectral characteristics. For example, Patent Document 1 describes an apparatus for calculating the concentration of HbNO by multi-component analysis of the intensity spectrum of diffused light by irradiating light through a light emitting fiber and receiving the light by a light receiving fiber. In addition, Patent Document 2 describes a fluorescence measurement apparatus that includes a sample holder that can move relative to the irradiation position of excitation light, and that can measure a plurality of samples.

Japanese Patent Application Laid-Open No. 7-103888 Unexamined-Japanese-Patent No. 2003-294633

  However, in the conventional method, it is necessary to identify the investigation part to be measured in advance and then examine the spectral characteristics. Furthermore, it is necessary to record for each individual data which part the measurement result is. In particular, with the conventional method, it is not easy to accurately record, for dynamic objects, the measurement results in which part and in what state the measurement result by the spectral characteristic is the measurement result. It will be difficult to identify.

  An object of this invention is to provide the spectroscopy measurement system and the spectroscopy measurement method which can investigate a spectral characteristic, specifying a measurement part by the image at the time of measurement in view of the said subject.

  In order to achieve the above object, one of the representative spectroscopic measurement systems of the present invention comprises a splitter element for receiving an image of an object to be measured through a lens, a fiber composed of a plurality of optical fibers, and a two-dimensional A spectral imaging unit, which is an aberration-free spectroscope equipped with a sensor, a camera, and a processing device, the splitter element has a splitter surface, and the splitter surface transmits and reflects the incident image The light is split into two images, and the fiber captures the light of the measurement range with a plurality of optical fibers arranged on the incident side of one of the images emitted by the splitter element and emits the light from the exit side to the spectral imaging unit The spectral imaging unit splits light incident from the fiber and forms an image on the sensor, and outputs the image as image information to the processing device. The camera captures the other image emitted by the splitter element as an image and outputs the image to the processing device, and the processing device performs processing of calculating spectral characteristics based on information from the spectral imaging unit. And processing for displaying a measurement range captured by the fiber on an image captured by the camera.

  Furthermore, one of the spectroscopic measurement methods of the present invention comprises a splitter element having a splitter surface and having an image of the object to be measured incident through a lens, a fiber composed of a plurality of optical fibers, and a two-dimensional sensor Using the spectral imaging unit, which is an aberration-free spectroscope, a camera, and a processing device, the split surface of the splitter element splits and emits an incident image into two images, a transmitted image and a reflected image. And a step of capturing light of a measurement range by a plurality of optical fibers in which one image of the splitter element is output on the incident side by the fiber, and emitting the light from the output side to the spectral imaging unit; Splits the light incident from the fiber and forms an image on the sensor and outputs it as image information to the processing device And the step of capturing the other image emitted by the splitter element as an image by the camera and outputting the image to the processing device; and the processing device performs spectral characteristics based on the information from the spectral imaging unit. And performing processing for calculating and displaying the measurement range captured by the fiber on the image captured by the camera.

According to the present invention, in the spectrometry system and the spectrometry method, it is possible to examine the spectral characteristics while specifying the measurement portion by the image at the time of measurement.
Problems, configurations, and effects other than those described above will be apparent from the description of the embodiments below.

It is a block diagram which shows one Embodiment of the spectrometry system of this invention. It is a figure which shows an example of the optical fiber shape in the spectrometry system of this invention. It is a see-through | perspective perspective view which shows an example of the spectroscopy imaging unit in the spectroscopy measurement system of this invention. It is a top view which shows the example of lens arrangement in the case of changing the magnification of the measurement range in the spectrometry system of this invention, and (a) is 0.8 times, (b) is 1 time, (c) is an example of 3 times. Indicates It is a figure which shows the example of the measurement range in the spectrometry system of this invention. It is a figure which shows the image in the spectrometry system of this invention, and the example of a measurement range, (a) is 0.8 times, (b) 1 time, (c) shows the example of 3 times. It is a figure which shows the example of a display of the measurement result in the spectrometry system of this invention. The another embodiment of the spectrometry system of this invention is shown, (a) shows the connection of the splitter element and fiber in 1st other embodiment, (b) is the connection of the splitter element and fiber in 2nd other embodiment. Indicates The other embodiment of the spectrometry system of this invention is shown, (a) shows the connection of the splitter element and fiber in 3rd another embodiment, (b) is the splitter element and fiber connection in 4th other embodiment. And (c) show the splitter element-fiber connection in the fifth alternative embodiment. Fig. 6 shows various examples of the arrangement of the input side of the fiber in the spectrometry system of the present invention.

  A mode for carrying out the present invention will be described.

(overall structure)
FIG. 1 is a block diagram showing an embodiment of the spectrometry system of the present invention.

  The spectrometry system 1 includes a measurement side lens 11, a splitter element 12, magnification adjustment lenses 13 and 14, a fiber 15, a spectral imaging unit 20, a camera 30, and a processing device 40.

  The measurement side lens 11 is a lens for capturing the light from the measurement object 100, and is configured closer to the measurement object 100 than the incident surface 12 a of the splitter element 12. Although the number of the measurement side lens 11 may be one, it can also be comprised combining two or more.

  The splitter element 12 is an element which divides the image by the light of the measuring object 100 which injected into two. Specifically, it is divided into an image transmitted by the splitter surface 12b and an image reflected. The splitter element 12 includes an incident surface 12a, a splitter surface 12b, a first emission surface 12c, and a second emission surface 12d.

  The incident surface 12a is a surface on which an image from the measurement side lens 11 is incident, and is formed on the measurement side lens 11 side (the measurement target 100 side).

  The splitter surface 12b is configured with an angle with respect to the incident direction of the image incident on the incident surface 12a. By this, the incident image can be divided into an image to be reflected and an image to be transmitted. For example, in the example of FIG. 1, the angle is 45 °, and the image is reflected in the direction perpendicular to the incident direction. Also, the transmitted image is transmitted straight as it is in the incident direction.

  The first exit surface 12c is a surface formed earlier in the transmission direction, and is formed of a surface perpendicular to the transmission direction. The first emission surface 12c can be formed on the opposite side of the incident surface 12a in parallel with the incident surface 12a. Thereby, an image transmitted by the splitter surface 12b is formed on the first emission surface 12c.

  The second exit surface 12d is a surface formed ahead of the reflection direction, and is formed of a surface perpendicular to the reflection direction. For example, if the splitter surface 12b forms an angle of 45 ° with the incident direction, the second emission surface 12d is formed at right angles to the incident surface 12a. Thereby, the image reflected by the splitter surface 12b is formed on the second emission surface 12d.

  In the present embodiment, the splitter element 12 has a cubic shape, and is formed to be a diagonal of a square as viewed from above by forming a shape in which faces cut by a diagonal of the square are viewed from above. A vertical surface is formed as the splitter surface 12b. It can be formed of the material of the splitter element 12, for example, transparent glass or resin. Then, the surface on the opposite side to the incident surface 12a is the first emission surface 12c, and the surface on the right side on the side where the splitter surface 12b is not interposed to the incident surface 12a is the second emission surface 12d.

  A beam splitter or a half mirror can be applied as the splitter element 12. At this time, in the case of a half mirror, it is possible to divide and form the transmitted light amount and the reflected light amount at the splitter surface 12 b at 1: 1.

  The magnification adjustment lenses 13 and 14 are lenses disposed between the first emission surface 12 c of the splitter element 12 and the incident side 15 a of the fiber 15 and constitute a magnification adjustment mechanism. The magnification adjustment mechanism can determine the measurement range by spectrometry as described later. Here, the magnification adjustment lens 13 is disposed on the splitter element 12 side, and the magnification adjustment lens 14 is disposed on the fiber 15 side.

  The fiber 15 is composed of a plurality of optical fibers for propagating light. The incident side 15a which is one end of the fiber 15 is formed on the magnification adjusting lens 14 side. In addition, an emission side 15 b which is the other end of the fiber 15 is formed on the side of the spectral imaging unit 20. The light by the image emitted from the first emission surface 12 c of the splitter element 12 is incident on the fiber 15 from the incident side 15 a through the magnification adjustment lenses 13 and 14, and is emitted to the spectral imaging unit 20 from the emission side 15 b. The incident side 15a of the fiber 15 is arranged in accordance with the measurement range of the spectral characteristic. The output side 15 b of the fiber 15 is aligned in the lateral direction in order to be incident on the spectral imaging unit 20. Here, as these optical fibers, for example, quartz fibers or multicomponent fibers can be adopted. The number of measurement points can be increased by increasing the number of optical fibers in the fiber 15 to 9 or more, 64 or more, 256 or more.

  The spectral imaging unit 20 is an aberration free spectroscope described later, and includes a sensor 26 and an image processing unit 27. Spectral characteristics are measured using the spectral imaging unit 20. The light captured by the spectral imaging unit 20 can include infrared light and ultraviolet light as well as visible light.

  The camera 30 is a camera for capturing an image emitted to the second emission surface 12 d, and can be captured dynamically as a moving image. For example, a board camera or the like can be applied to the camera 30, and an image can be captured in color or monochrome. The configuration of the camera 30 is configured of a lens, an imaging device, and the like. The camera 30 can capture an image at, for example, 30 frames or 800 frames per second, or more.

  The processing device 40 is connected to the spectral imaging unit 20 by a connection line 41, and to the camera 30 by a connection line 42. Here, as the connection lines 41 and 42, standard interfaces can be used, and for example, USB 2.0, USB 3.0, camera link, GigE, optical communication mode and the like can be applied. The processing device 40 can perform processing for superposing the light measurement range captured by the corresponding fiber 15 for each frame of the image captured by the camera 30. At this time, since the images on the first emission surface 12c and the second emission surface 12d are reversed in the left and right direction, adjustment processing is performed to obtain an appropriate positional relationship including these matters. Furthermore, the processing device 40 can analyze the spectral characteristics of the measurement target 100 in the measurement range based on the information acquired by the sensor 26 of the spectral imaging unit 20. For this reason, the processing apparatus 40 can superimpose the measurement range captured by the fiber 15 on the image captured by the camera 30 and analyze the measurement result. Further, like the camera 30, the sensor 26 can also capture spectral information for each part at a speed of 30 frames or 800 frames per second, and at a speed higher than that.

  For example, a computer that can perform data processing such as a personal computer or a server can be applied as the processing device 40, and a program is introduced to this computer to perform processing for that. The above processing is processed by a processing unit in the processing device 40. Here, the processing unit is configured of a macro processor such as a CPU, a memory, and the like. The OS of the processing device 40 may be Windows, MACOS, UNIX (registered trademark) or the like, and the programming language used for the program to be applied may be Visual Basic, C ++ or the like.

  The processing device 40 may include the display unit 40a. By the processing of the processing unit, the display unit 40a can display the image of the camera 30 and the measurement result of the measurement range and the spectral characteristic at that time with respect to the image. As the display unit 40a, for example, a display using liquid crystal or organic EL can be applied. In addition, the display unit 40a may be configured separately. In addition, the processing device 40 may have a storage unit inside, and stores an image and a measurement result here. As the storage unit, for example, storage devices of various types such as a hard disk drive (HDD) and a solid state drive (SSD) may be applied as needed.

  Moreover, the processing apparatus 40 is applicable also to a tablet, a smart phone, etc. The OS in this case can be a general one based on the hardware (such as Android or iOS), and the programming language used for the program to be applied can be a standard one including the above-mentioned languages. In addition, without using the connection line 41 and the connection line 42, information may be exchanged by wireless communication between the camera 30 and the processing device 40, and between the image processing unit 27 and the processing device 40.

(Fiber shape)
FIG. 2 is a view showing an example of a fiber shape in the spectrometry system of the present invention.

  As shown in FIG. 2, the incident side 15a of the fiber 15 can be arranged in a shape in which the end portions are aligned and matched to the measurement range of the spectral characteristic. FIG. 2 shows a configuration example in which one end portion of the optical fiber is arranged in a square form of 8 pieces × 8 pieces, 64 pieces in total. Further, on the output side 15 b of the fiber 15, the other ends of the optical fibers are aligned and arranged in a line of 64. Aligning in a row is an array configuration for incidence on the spectral imaging unit 20. Thus, the fibers 15 formed of a plurality of optical fibers can be formed by changing the arrangement configuration of the incident side 15 a and the output side 15 b according to the purpose.

(Spectroscopic imaging unit)
FIG. 3 is a transparent perspective view showing an example of a spectral imaging unit in the spectrometry system of the present invention.

  As shown in FIG. 3, the spectral imaging unit 20 is connected to the output side 15 b of the fiber 15, and the combination convex lens 21, the prism 22, the grating 23, the prism 24, the combination convex lens 25 and the sensor 26 in this order in the longitudinal direction It is an aberration free spectroscope equipped with. The spectral imaging unit 20 also includes an image processing unit 27, and performs processing such as processing of information received by the sensor 26 as image information. The fibers 15 are connected to the spectral imaging unit 20. On the output side 15b of the fibers 15, the optical fibers are set to be aligned laterally at the upper and lower centers of the two-dimensional sensor 26.

  In the prism 22, the vertical surface 22 b is on the grating 23 side, and the inclined surface 22 a is on the combination convex lens 21 side. In the prism 24, the vertical surface 24 b is on the grating 23 side, and the inclined surface 24 a is on the side of the combination convex lens 25. The prisms 22 and 24 are prisms for angle correction. The grating 23 is a grating for wavelength dispersion. The sensor 26 is a two-dimensional light sensor. For example, a sensor using a monochrome camera made of silicon, InGaAs, MCT or the like such as a CCD camera or CMOS can be applied. The main body of the monochrome camera here corresponds to the image processing unit 27.

  The light from the fiber 15 is dispersed through the combination convex lens 21, the prism 22, the grating 23, and the prism 24, and finally the light of the + first order light or the minus first order light is horizontally collected by the sensor 26 through the combination convex lens 25. It is designed to

  Thus, spatial information is stored in the sensor 26 by the spectral imaging unit 20. The energy information for each wavelength is decomposed for each wavelength and converged in a two-dimensional sensor 26. Since spatial information for each incident point (each measurement point) of the fiber 15 is stored in the spectral imaging unit 20, as a result, it is possible to capture the amount of wavelength-dispersed signal for each measurement point of the incident point. Become. Here, in the two-dimensional image formed on the sensor 26, the horizontal direction is information for each corresponding measurement point, and the vertical direction can check the amount of light for each wavelength for each optical fiber. Thus, it becomes possible to capture the amount of wavelength-dispersed signal for each measurement point. This information is output to the processing device 40 shown in FIG.

(Change of measurement range)
FIG. 4 is a plan view showing an example of lens arrangement in the case of changing the magnification of the measurement range in the spectrometry system of the present invention, where (a) is 0.8 times, (b) is 1 and (c) is Here is a threefold example.

  As shown in FIG. 4, by changing the positions of the magnification adjustment lens 13 and the magnification adjustment lens 14 which are magnification adjustment mechanisms between the first emission surface 12c of the splitter element 12 and the incident side 15a of the fiber 15, the measurement range Can be changed. The distance between the first exit surface 12c and the incident side 15a is equal to each other.

  In FIG. 4A, the measurement range is set wide in the measurement range in which the magnification is 0.8. That is, the wide range of the first emission surface 12 c is captured and made incident on the incident side 15 a of the fiber 15. In this case, the magnification adjustment lens 13 and the magnification adjustment lens 14 are disposed closer to the incident side 15 a of the fiber 15 than in FIGS. 4 (b) and 4 (c).

  In FIG. 4B, the measurement range is set to the same range as the arrangement range of the incident side 15 a of the fiber 15 in the measurement range in which the magnification is 1 ×. In this case, the magnification adjustment lens 13 and the magnification adjustment lens 14 are disposed at intermediate positions as compared with the magnification adjustment lens 13 and the magnification adjustment lens 14 in FIGS. 4A and 4C, respectively.

  In FIG. 4C, the measurement range is set narrow in the measurement range in which the magnification is tripled. That is, the narrow range of the first emission surface 12 c is captured and made incident on the incident side 15 a of the fiber 15. In this case, the magnification adjustment lens 13 and the magnification adjustment lens 14 are disposed closer to the first emission surface 12 c of the splitter element 12 than in FIGS. 4 (a) and 4 (b).

  FIG. 5 is a diagram showing an example of the measurement range in the spectrometry system of the present invention.

  In FIG. 5, the imaging range 51 of the camera 30 captured by the second emission surface 12 d and the 0.8 × measurement range 52 captured by the first emission surface 12 c, the 1 × measurement range 53, and 3 × measurement on one surface of the splitter element 12. It is the figure which arranged the range 54 and showed it. Each measurement range corresponds to the measurement range at the magnification described in FIGS. 4 (a), (b) and (c). As shown in FIG. 5, it can be seen that the 0.8 × measurement range 52, the 1 × measurement range 53, and the 3 × measurement range 54 and their ranges are narrower than the imaging range 51. Here, since the centers of the respective ranges are aligned, it is possible to determine which range is to be measured from the center of the imaging range 51.

(Specific example of change of measurement range)
FIG. 6 is a diagram showing an example of an image and a measurement range in the spectrometry system of the present invention, in which (a) shows an example of 0.8, (b) shows 1 and (c) shows 3 times.

  As shown in FIG. 6, the case of measuring the vicinity of a fish's eye will be described corresponding to the measurement range described in FIG. Here, an example in which the arrangement of the incident side 15 a of the fiber 15 is a total of 35 optical fibers of 5 in length × 7 in width is shown.

  As the measurement range 52 of 0.8 times that in FIG. 6A, the measurement range 53 that is 1 times that of FIG. 6B, and the measurement range 54 that is three times that of FIG. Becomes narrower. Here, since the number of measurement points is common to 35 (5 vertical × 7 horizontal), the smaller the range (the stitch size is smaller as it goes to FIGS. 6 (a), 6 (b) and 6 (c) It is possible to examine spectral characteristics for each range. For example, if it is FIG. 6 (a), it can investigate about the wide range including the circumference | surroundings of fish eyes, and if it is FIG. 6 (c), the detailed information specialized in the fish eyes can be investigated.

  Further, by showing the measurement ranges 52, 53, 54 together with the imaging range 51 as shown in FIG. 6, it is possible to immediately know which range of spectral characteristics are being examined.

(Display example of measurement result)
FIG. 7 is a view showing a display example of measurement results in the spectrometry system of the present invention.

  FIG. 7 illustrates an example in which the measurement result and the measurement range of the spectral characteristic are displayed on the display unit 40a by the processing in the processing unit of the processing device 40. On the screen display 80, a * b * display 81 and Δa * Δb * display 82 are displayed up and down on the left side, full spectrum display 83 on the right side and an image and measurement range display 84 and time below it. The display 85 of the specific component amount is displayed side by side.

  The a * b * display 81 is a display example of the a * b * surface pigment in the color space, and can indicate to which color the light of the measurement point belongs. The Δa * Δb * display 82 represents Δa * and Δb *, which are differences between a * and b *, as a table. These can be examined from the wavelength of each measurement point measured by the spectral imaging unit 20.

  The full spectrum display 83 represents a spectrum display for each measurement point. These can be displayed in an easy-to-understand manner in the same arrangement as the arrangement on the incident side 15a. FIG. 7 shows an example of a total of 64 measurement points of 8 vertical × 8 horizontal. The spectrum of each measurement point can be calculated from the wavelength of each measurement point measured by the spectral imaging unit 20.

  The display 84 of the image and the measurement range is the display of the measurement range of the spectral characteristic to be measured via the fiber 15 or the like with respect to the imaging range (image), as in FIG.

  The display 85 of the time and the specific component amount is a graph showing the change of the specific component with respect to time measured. For example, specific principal components A and B can be derived from the wavelength for each measurement point measured from the spectral imaging unit 20. This can be calculated by examining the characteristics of the wavelength of light indicated by the specific principal components A and B, and examining how much the component is contained in each time.

(Action)
The operation of the spectrometry system 1 will be described. As shown in FIG. 1, light obtained by capturing an image from the measuring object 100 is incident on the splitter element 12 through the measuring lens 11. Then, the light is divided into light reflected by the splitter surface 12 b of the splitter element 12 and transmitted light. Here, the transmitted light is emitted to the first emission surface 12c, and the reflected light is emitted to the second emission surface 12d.

  Then, the light emitted to the first emission surface 12 c is incident on the incident side 15 a of the fiber 15 through the magnification adjustment lenses 13 and 14. At this time, the incident range can be adjusted by the magnification adjustment lenses 13 and 14. Then, the incident light enters the spectral imaging unit 20 through the fiber 15. The spectral imaging unit 20 forms an image on the sensor 26 as a two-dimensional image according to the configuration shown in FIG. Here, it is possible to obtain information on the amount of light of each wavelength for each measurement point. Then, these pieces of information are sent to the processing device 40 via the connection line 41.

  The light emitted to the second emission surface 12d is captured by the camera 30 as an image of the entire image. This information is then sent to the processing unit 40 via the connection line 42.

  The processing device 40 performs processing of superposing, on each frame of an image captured by the camera 30, information of a measurement range captured by the fiber 15 transmitted through the spectral imaging unit 20. Furthermore, it is possible to analyze the spectral characteristics of the measurement target 100 in the measurement range, and to display the image of the camera 30, the measurement range of the spectral characteristics and the measurement results on the display unit 40a.

  With these configurations, the observer can know which position of the image in which state the information of the measurement result of the spectral characteristic is. Further, the magnification can be changed to an appropriate magnification by the magnification adjustment mechanism using the magnification adjustment lenses 13 and 14 shown in FIG. 4.

(First and second alternative embodiments)
FIG. 8 shows another embodiment of the spectrometry system of the present invention, where (a) shows the splitter element-fiber connection in the first alternative embodiment, and (b) shows the splitter element in the second alternative embodiment. And fiber connections. In the first and second alternative embodiments, points different from the embodiments described in FIGS. 1 to 7 will be mainly described, and the same parts are denoted by the same reference numerals, and parts that are not particularly described are the same. The explanation is omitted.

  In the first alternative embodiment of FIG. 8A, the magnification adjustment lenses 13 and 14 shown in FIGS. 1 and 4 are not used, and the incident side 15a of the fiber 15 is directly connected to the first exit surface 12c of the splitter element 12. The structure Thus, the light of the image emitted at the first emission surface 12 c of the splitter element 12 is directly incident on the fiber 15 from the incident side 15 a. Here, although the magnification adjustment can not be performed, since the magnification adjustment lenses 13 and 14 are not used, the configuration can be simplified and the cost can be reduced. In addition, the measurement range of the light caught by the incident side 15a turns into the arrangement range of the optical fiber of the incident side 15a itself, and becomes the same as 1 time of FIG.4 (b).

  In the second alternative embodiment of FIG. 8B, the individual adjustment lens 61 is used instead of the magnification adjustment lenses 13 and 14 shown in FIGS. The individual adjustment lens 61 is disposed between the incident side 15 a of the fiber 15 and the first exit surface 12 c of the splitter element 12 for each of the plurality of optical fibers in the fiber 15. The individual adjustment lenses 61 are prepared for the number of optical fibers. As a result, although the number of lenses used is increased, fine adjustment for each optical fiber is also possible.

(Third to fifth alternative embodiments)
FIG. 9 shows another embodiment of the spectrometry system of the present invention, wherein (a) shows the splitter element-fiber connection in the third embodiment, and (b) shows the splitter element in the fourth embodiment. And (c) show the splitter element-fiber connection in the fifth alternative embodiment. In the third to fifth alternative embodiments, points different from the embodiment described in FIGS. 1 to 7 will be mainly described, and the same parts are denoted by the same reference numerals, and parts that are not particularly described are the same. The explanation is omitted.

  In the third to fifth alternative embodiments of FIGS. 9 (a), (b) and (c), the magnification adjustment lenses 13 and 14 are not used, and the incident side 15a of the fiber 15 and the first emission surface 12c of the splitter element 12 The interposing members 71, 72, 73 intervene between the two. These can be applied to a fiber optic plate having a fiber inside. By changing these intervening members 71, 72, 73, the measurement range of the spectral characteristics can be changed.

  In the third alternative embodiment of FIG. 9A, the intervening member 71 is formed thinner than the fiber side 71b at the splitter element side 71a, and the end of the splitter element side 71a is the first emission surface of the splitter element 12 I am relying on 12c. The fiber side 71 b of the intervening member 71 is connected to the incident side 15 a of the fiber 15, and is formed to have a size corresponding to the incident side 15 a of the fiber 15. With this interposition member 71, a narrow range of the image emitted to the splitter element side 71a can be made incident on the fiber 15. Thereby, the measurement according to the measurement range in case the magnification shown in FIG.4 (c) is higher than 1 can be performed.

  In the fourth alternative embodiment of FIG. 9B, in the intervening member 72, the splitter element side 72a is formed thicker than the fiber side 72b, and the end of the splitter element side 72a is the first emission surface of the splitter element 12 I am relying on 12c. The fiber side 72 b of the interposing member 72 is connected to the incident side 15 a of the fiber 15, and is formed to have a size corresponding to the incident side 15 a of the fiber 15. By this interposition member 72, a wide range of the image emitted to the splitter element side 72a can be made incident on the fiber 15. Thereby, the measurement according to the measurement range in the case where the magnification shown in FIG. 4A is lower than 1 can be performed.

  In the fifth alternative embodiment of FIG. 9C, in the intervening member 73, the splitter element side 73a is formed to have the same thickness as the fiber side 73b, and the end of the splitter element side 73a is the first of the splitter elements 12 It is applied to the emitting surface 12c. The intervening member 73 allows the image emitted to the splitter element side 72 a to be incident on the fiber 15 in the same range as the incident side 15 a of the fiber 15. Thereby, the same measurement as the measurement range in the case where the magnification shown in FIG. 4B is the same as 1 can be performed.

(Example of arrangement on the incident side of fiber)
FIG. 10 shows various example arrangements of the input side of the fibers in the spectrometry system of the present invention.

  As shown in (a) to (g) of FIG. 10, the incident side 15a of the fiber 15 can constitute various arrangement examples in consideration of the measurement range, the measurement density, and the like.

  FIG. 10A shows an example in which fifteen optical fibers are arranged side by side. In this case, the arrangement of the emitting side 15b is the same.

  FIG. 10 (b) shows an example in which a total of 49 optical fibers, 7 vertical × 7 horizontal, are arranged in a square. Except for the end, four optical fibers in total are configured to be in contact with one optical fiber, one each at the top and bottom, and one each at the left and right.

  FIG. 10C shows an example in which six, seven, six, seven, six, seven, six, seven optical fibers are arranged in the horizontal direction from the top and these are arranged in the longitudinal direction. Show. A total of 52 optical fibers are used, and the shape is almost square as a whole. Optical fibers vertically adjacent to each other are arranged with half gap between the outer diameters of the respective optical fibers with a small gap. Other than the end, a total of six optical fibers are configured to be in contact with one optical fiber, two each at the top and bottom, and one each at the left and right.

  FIG. 10D shows an example in which a total of 21 optical fibers, 3 vertical × 7 horizontal, are arranged in a rectangle. Except for the end, four optical fibers in total are configured to be in contact with one optical fiber, one each at the top and bottom, and one each at the left and right.

  FIG. 10 (e) shows an example in which seven, six, and seven optical fibers are arranged in the horizontal direction from the top and those are arranged in the vertical direction. A total of 20 optical fibers are used, and the shape is almost rectangular as a whole. Optical fibers vertically adjacent to each other are arranged with half gap between the outer diameters of the respective optical fibers with a small gap. Other than the end, a total of six optical fibers are configured to be in contact with one optical fiber, two each at the top and bottom, and one each at the left and right.

  FIG. 10 (f) shows an example in which three, five, seven, seven, seven, seven, five and three optical fibers are arranged in the horizontal direction from the top and these are arranged in the vertical direction. A total of 37 optical fibers are used, and the shape is almost hexagonal as a whole. Optical fibers adjacent in the vertical and horizontal directions are arranged at the same center position. Other than the end, a total of six optical fibers are configured to be in contact with one optical fiber, two each at the top and bottom, and one each at the left and right.

  In FIG. 10G, two, five, eight, nine, eight, nine, eight, nine, eight, five, two optical fibers are arranged side by side from the top, An example in which these are arranged in the vertical direction is shown. A total of 73 optical fibers are used, and the shape is almost hexagonal as a whole. Optical fibers vertically adjacent to each other are arranged with half gap between the outer diameters of the respective optical fibers with a small gap. Other than the end, a total of six optical fibers are configured to be in contact with one optical fiber, two each at the top and bottom, and one each at the left and right.

(Example of application)
As an application example of the spectroscopic measurement system 1 described above, for example, in the case of a fish as shown in FIG. 6, a color state or a main component is specified from information of the light quantity for each wavelength from the surface to swim. Spectral knowledge of In this case, it is not necessary to place the fish on the sample table, etc. For example, by photographing with the camera 30 with the spectrometry system 1 from the front of the water tank, the live fish in the water tank can be recorded dynamically. Can be examined. The condition of the fish can be examined by taking out an image having a measurement target to be examined in the recorded image and confirming the measurement result of the spectral characteristic of the measurement range at that time.

  Furthermore, in the case of a volcanic state, an image near the crater is captured, and part of it is taken as a measurement range of spectral characteristics. In this case, it is possible to measure the state of the volcano by analyzing the spectral characteristics, for example, by examining the amount of hydrogen sulfide components and the like. At this time, since the image of the volcano is captured by the camera 30, the component amount of the main component can be checked together with the actual state of the eruption.

  In addition, by pointing the measurement target to the sky, it is possible to check the weather from the sky state.

  As mentioned above, although the embodiment of the present invention was described, the present invention is not limited to the above-mentioned embodiment, and various modifications other than the above-mentioned are included. For example, it is not limited to what has all the configurations provided in the above-described embodiment. Also, part of the configuration of an embodiment may be deleted or replaced with another configuration.

  For example, although it has been described that the magnification adjustment mechanism is configured by the magnification adjustment lenses 13 and 14, the present invention is not limited to this, and a plurality of lenses may be used as needed, such as three or more, five or more. Also, although the embodiments of the present invention have been described with respect to representative magnifications such as 0.8, 1 ×, 3 ×, etc., the magnification between them may be, for example, 2 ×. In addition, using a lens system with an optical parameter that is used to fit into the optical aberration characteristics to obtain data that can withstand the final application purpose, the magnification should be 0.8 times or less, or 3 times or more if necessary. May be

  The arrangement on the incident side 15a side of the fiber 15 is not limited to the above embodiment, and the arrangement is not limited to the above embodiment, but two or more × two or more horizontally, two or more vertically × three or more horizontally, , And a fixed measurement range may be formed.

  The image on the transmission side of the first emission surface 12c of the splitter element 12 is captured by the camera 30, and the spectral characteristics of the fiber 15 and the spectral imaging unit 20 are calculated from the image on the reflection side of the second emission surface 12d of the splitter element 12. It may be measured.

DESCRIPTION OF SYMBOLS 1 Spectroscopic measurement system 11 Measurement side lens 12 Splitter element 12a Incident surface 12b Splitter surface 12c First outgoing surface 12d Second outgoing surface 13, 14 Magnification adjustment lens 15 Fiber 15a Incident side 15b Outgoing side 20 Spectral imaging unit 26 Sensor 27 Image processing Part 30 Camera 40 Processing device 40a Display part 41, 42 Connection line 61 Individual adjustment lens 71, 72, 73 Intervening member 80 Screen display 100 Measurement target

Claims (7)

A spectral imaging unit which is an aberration-free spectroscope provided with a splitter element for entering an image of a measurement object via a lens, a fiber composed of a plurality of optical fibers, and a two-dimensional sensor; Equipped
The splitter element has a splitter surface, and the splitter surface splits and emits an incident image into two images, a transmitted image and a reflected image.
The fiber catches the light of the measurement range with a plurality of optical fibers in which one image from the splitter element is arranged on the incident side is captured and emitted from the emission side to the spectral imaging unit.
The spectral imaging unit splits light incident from the fiber, forms an image on the sensor, and outputs the image as image information to the processing device.
The camera captures the other image emitted by the splitter element as an image and outputs the image to the processor.
The processing device performs processing of calculating spectral characteristics based on the information from the spectral imaging unit, and processing of displaying the measurement range captured by the fiber on the image captured by the camera. Spectroscopic measurement system characterized by In the spectrometry system according to claim 1,
The spectroscopic measurement system according to claim 1, wherein the splitter surface is formed at 45 ° with respect to the incident direction. In the spectrometry system according to claim 1 or 2,
A spectroscopy measurement system, comprising a magnification adjustment lens for changing the magnification of the measurement range, between the splitter element and the fiber. The spectrometry system according to any one of claims 1 to 3.
The spectroscopy system according to claim 1, wherein the one image emitted from the splitter element is an image transmitted through the splitter surface, and the other image emitted from the splitter element is an image reflected from the splitter surface. The spectrometry system according to any one of claims 1 to 4.
A spectral measurement system comprising: a display unit, and displaying on the display unit a spectral characteristic calculated by the processing device and a measurement range captured by the fiber with respect to an image captured by the camera. In the spectrometry system according to any one of claims 1 to 5,
What is claimed is: 1. A spectrometric measurement system comprising: calculation of a spectrum and / or calculation of a component amount of a specific component as calculation of spectral characteristics by the processing device. A splitter element having a splitter surface for entering an image of an object to be measured through a lens, a fiber composed of a plurality of optical fibers, a spectral imaging unit which is an aberration-free spectrometer including a two-dimensional sensor, a camera Using the processing device,
Splitting and emitting an image into two images, a transmitted image and a reflected image, by the splitter surface of the splitter element;
A step of capturing light of a measurement range by a plurality of optical fibers arranged by the optical fiber on the incident side of one of the images emitted from the splitter element on the incident side and emitting the light from the output side to the spectral imaging unit;
The spectral imaging unit splits the light incident from the fiber, forms an image on the sensor, and outputs the image as image information to the processing device;
Capturing by the camera the other image emitted by the splitter element as an image and outputting the image to the processing device;
The processing device performs processing of calculating spectral characteristics based on the information from the spectral imaging unit, and processing of displaying the measurement range captured by the fiber on the image captured by the camera. And a step.