JP2009063407A - Irradiation condenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an irradiation condenser capable of condensing with a simple configuration irradiation to a plurality of measurement objects or a plurality of points in the measurement object. <P>SOLUTION: The irradiation condenser which irradidates light from a light source 19 at a measurement object, and which condenses and supplies reflected light from the measurement object, includes a plurality of irradiating optical fibers 21, 22 for propagating light from the light source, a condensing optical fiber 25 for propagating reflected light from the measurement object, and a lens for parallelizing emitted light from the plurality of irradiating optical fibers to irradiate at each different point on the measurement object and for condensing reflected light from each different point on the measurement object into the condensing optical fiber. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an irradiation condensing apparatus that irradiates light to be measured from a light source and collects reflected light or transmitted light from the object to be measured and supplies the light to a spectroscopic means, etc. The present invention relates to an irradiation condensing apparatus capable of irradiating and condensing a plurality of measurement objects or a plurality of points in the measurement object.

  As prior art documents related to an irradiation condensing device that irradiates light to be measured from a conventional light source and collects reflected light from the object to be measured or transmitted light and supplies it to a spectroscopic means, etc. There are the following.

JP 05-052739 A JP 08-050092 A JP-A-11-070101 JP 2002-131229 A

  FIG. 6 is a configuration block diagram showing an example of a spectroscopic analysis apparatus using such a conventional irradiation condensing apparatus. In FIG. 6, 1 is a light source, 2 and 5 are optical fibers, 3 is an irradiation condensing device, 4 is an object to be measured, and 6 is a spectroscopic means. 1, 2, 3, 5 and 6 constitute a spectroscopic analyzer 50.

  Output light from the light source 1 propagates through the optical fiber 2 and is supplied to the irradiation condensing device 3, and emitted light from the irradiation condensing means 3 is irradiated to the object 4 to be measured.

  For example, as indicated by “LG01” in FIG. 6, the irradiation light emitted from the irradiation condensing device 3 is applied to a portion on the measurement object 4 indicated by “SP01” in FIG. 6.

  Further, the reflected light (or a part of the reflected light) from the measurement object 4 is incident on the same irradiation condensing device 3 from which the irradiation light is emitted and is condensed, and then propagates through the optical fiber 5. And supplied to the spectroscopic means 6.

  For example, the reflected light (or part of the reflected light) reflected by the part on the measurement object 4 indicated by “SP01” in FIG. 6 is irradiated and condensed by the irradiation light collecting device 3 as indicated by “LG02” in FIG. Is incident on.

  Here, the operation of the conventional example shown in FIG. 6 will be described with reference to FIG. FIG. 7 is a structural block diagram showing an example of such a conventional irradiation condensing device. In FIG. 7, 2, 4 and 5 are given the same reference numerals as in FIG. 6, and in FIG. It is a lens that is a means. The lens 7 constitutes an irradiation condensing device 51.

  The output light from the light source 1 propagates through the optical fiber 2 as indicated by “LG11” in FIG. 7, is collimated by the lens 7 in the irradiation condensing device 51, and propagates as parallel light as indicated by “LG12” in FIG. Then, the portion on the measurement object 4 indicated by “SP11” in FIG. 7 is irradiated.

  On the other hand, the reflected light (or part of the reflected light) from the measurement object 4 is incident on the irradiation condensing device 51 as indicated by “LG13” in FIG. Thus, the light is condensed on the optical fiber 5. The condensed light propagates through the optical fiber 5 as shown by “LG14” in FIG. 7 and is supplied to the spectroscopic means 6 for spectroscopic analysis.

  As a result, by using the irradiation condensing device for the spectroscopic analyzer, it becomes possible to irradiate the object to be measured and collect the reflected light with one irradiation condensing device.

  By the way, when irradiating and condensing multiple objects to be measured or multiple points in the object to be measured, the position of the irradiating and condensing device itself is moved, or multiple irradiating and condensing devices are installed. There is a need to perform irradiation condensing while appropriately selecting an irradiation condensing device.

  FIG. 8 is a configuration block diagram showing another example of a conventional spectroscopic analyzer that performs irradiation and collection by appropriately selecting a plurality of such irradiation and collection apparatuses.

  In FIG. 8, 8 is a light source, 9 and 14 are switching means for switching the optical path, 10, 13, 16 and 18 are optical fibers, 11 and 17 are irradiation condensing devices, 12 is an object to be measured, 15 is a spectroscopic means. is there. Further, 8, 9, 10, 11, 13, 14, 15, 16, 17, and 18 constitute a spectroscopic analyzer 52.

  The output light from the light source 8 is incident on the switching means 9, and the emitted light from one exit end of the switching means 9 propagates through the optical fiber 10 and is supplied to the irradiation condensing device 11. The light to be measured is irradiated onto the object 12 to be measured.

  For example, the irradiation light emitted from the irradiation condensing device 11 as indicated by “LG21” in FIG. 8 is applied to the first portion on the measurement target object 12 indicated by “SP21” in FIG.

  Further, the reflected light (or a part of the reflected light) from the object 12 to be measured is incident on the same irradiation condensing device 11 from which the irradiation light is emitted and condensed, and then propagates through the optical fiber 13. Then, it is supplied to one incident end of the switching means 14.

  For example, the reflected light (or a part of the reflected light) reflected by the first portion on the measurement target object 12 indicated by “SP21” in FIG. 8 is irradiated as shown by “LG22” in FIG. The light enters the optical device 11.

  Similarly, the outgoing light from the other outgoing end of the switching means 9 propagates through the optical fiber 16 and is supplied to the irradiation condensing device 17, and the outgoing light from the irradiation condensing means 17 irradiates the measurement object 12. Is done.

  For example, as shown by “LG23” in FIG. 8, the irradiation light emitted from the irradiation light collecting device 17 is applied to the second portion on the measurement target object 12 shown by “SP22” in FIG.

  Further, the reflected light (or part of the reflected light) from the object 12 to be measured is incident on the same irradiation condensing device 17 from which the irradiation light is emitted and condensed, and then propagates through the optical fiber 18. Then, the light is supplied to the other incident end of the switching means 14, and the light emitted from the output end of the switching means 14 is supplied to the spectroscopic means 15.

  For example, the reflected light (or part of the reflected light) reflected by the second portion on the measurement target object 12 indicated by “SP22” in FIG. 8 is irradiated and collected as indicated by “LG24” in FIG. The light enters the optical device 17.

  Here, the operation of the conventional example shown in FIG. 8 will be described. In the case of irradiating and condensing the first portion on the measurement target object 12 indicated by “SP21” in FIG. 8, the control means (not shown) controls the switching means 9 to output light from the light source 8 to the optical fiber. 10 and controls the switching means 14 to supply the light propagating through the optical fiber 13 to the spectroscopic means 15.

  In addition, when the second portion on the measurement object 12 indicated by “SP22” in FIG. 8 is irradiated and condensed, the control means (not shown) controls the switching means 9 to output light from the light source 8. The light propagates through the optical fiber 16 and controls the switching unit 14 to supply the light propagating through the optical fiber 18 to the spectroscopic unit 15.

  As a result, a plurality of objects to be measured or a plurality of points in the object to be measured are irradiated by performing irradiation and condensing while installing a plurality of irradiation and condensing apparatuses and appropriately selecting the irradiation and condensing apparatus. Condensation can be performed.

  However, it is difficult to move the position of the irradiation / condensing device itself when performing irradiation / condensation on a plurality of objects to be measured or a plurality of points in the object to be measured (in some cases, it is impossible to move). There was a problem that said.

  In addition, as shown in FIG. 8, when a plurality of irradiation condensing devices are installed and irradiation condensing is performed while appropriately selecting the irradiation condensing devices, the configuration is complicated and the cost is increased. There was a problem.

Furthermore, even if a plurality of irradiation condensing devices are installed side by side, it is difficult to measure (irradiate and condense) at an interval smaller than the size (diameter) of the irradiation condensing device. there were.
Therefore, the problem to be solved by the present invention is to realize an irradiation condensing apparatus capable of irradiating and condensing a plurality of objects to be measured or a plurality of points in the object to be measured with a simple configuration.

In order to achieve such a problem, the invention according to claim 1 of the present invention is:
In the irradiation condensing device that irradiates the object to be measured with light from the light source and collects and supplies the reflected light from the object to be measured.
A plurality of irradiation optical fibers for propagating light from the light source, a condensing optical fiber for propagating reflected light from the object to be measured, and light emitted from the plurality of irradiation optical fibers are converted into parallel light and the target By providing a lens for irradiating different portions on the measurement object, respectively, and condensing the reflected light from the different portions on the measurement object on the condensing optical fiber, respectively, with a simple configuration. Irradiation condensing can be performed on a plurality of measurement objects or a plurality of points in the measurement object.

The invention according to claim 2
In the irradiation condensing device that irradiates the object to be measured with light from the light source and collects and supplies the reflected light from the object to be measured.
A plurality of irradiation optical fibers for propagating light from the light source, a condensing optical fiber for propagating reflected light from the object to be measured, and light emitted from the plurality of irradiation optical fibers are converted into parallel light and the target Irradiation lenses for irradiating different portions on the measurement object, and condensing lenses for condensing reflected light from the different portions on the measurement object on the condensing optical fibers, respectively. This makes it possible to irradiate and collect a plurality of objects to be measured or a plurality of points in the objects to be measured with a simple configuration.

The invention described in claim 3
In the irradiation condensing device that irradiates the object to be measured with light from the light source and collects and supplies the reflected light from the object to be measured.
It consists of a plurality of irradiation optical fibers that propagate the light from the light source, and an irradiation lens that irradiates different parts on the object to be measured by making the emitted light of the plurality of irradiation optical fibers into parallel light. An irradiating device, a condensing optical fiber for propagating reflected light from the object to be measured, and a condensing optical fiber for condensing reflected light from different parts on the object to be measured on the condensing optical fiber, respectively. By providing the condensing device including the light lens, it is possible to irradiate and collect a plurality of objects to be measured or a plurality of points in the object to be measured with a simple configuration.

The invention according to claim 4
In the irradiation condensing device that irradiates the object to be measured with the light from the light source and collects and supplies the transmitted light from the object to be measured.
It consists of a plurality of irradiation optical fibers that propagate the light from the light source, and an irradiation lens that irradiates different parts on the object to be measured by making the emitted light of the plurality of irradiation optical fibers into parallel light. An irradiating device, a condensing optical fiber for propagating transmitted light from the object to be measured, and a condensing optical fiber for condensing transmitted light from different parts on the object to be measured on the condensing optical fiber, respectively. By providing the condensing device including the light lens, it is possible to irradiate and collect a plurality of objects to be measured or a plurality of points in the object to be measured with a simple configuration.

The invention according to claim 5
By applying the irradiation condensing device according to any one of claims 1 to 4 to a spectroscopic analyzer, irradiation to a plurality of measurement objects or a plurality of points in the measurement object with a simple configuration Condensation is possible.

The present invention has the following effects.
According to the first, second, third, fourth, and fifth aspects of the present invention, the light beams emitted from the plurality of irradiation optical fibers are converted into parallel light to irradiate different portions on the object to be measured. By condensing two reflected light or transmitted light from different parts on an object onto one condensing optical fiber, a plurality of objects to be measured or in a object to be measured can be obtained with a simple configuration. Irradiation condensing can be performed on a plurality of points.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of a spectroscopic analyzer using an irradiation condensing device according to the present invention.

  In FIG. 1, 19 is a light source, 20 is a switching means for switching an optical path, 21 and 22 are irradiation optical fibers, 23 is an irradiation condensing device, 24 is an object to be measured, 25 is a condensing optical fiber, and 26 is a spectroscopic unit. Means. In addition, 19, 20, 21, 22, 23, 25 and 26 constitute a spectroscopic analyzer 53.

  The output light from the light source 19 enters the switching means 20, and the emitted light from one exit end of the switching means 20 propagates through the optical fiber 21 and is supplied to the irradiation condensing device 23. The light to be measured is irradiated on the measurement object 24.

  For example, as shown by “LG31” in FIG. 1, the irradiation light emitted from the irradiation condensing device 23 is applied to the first portion on the measurement object 24 shown by “SP31” in FIG.

  Similarly, the outgoing light from the other outgoing end of the switching means 20 propagates through the optical fiber 22 and is supplied to the irradiation condensing device 23, and the outgoing light from the irradiation condensing means 23 irradiates the measurement object 24. Is done.

  For example, as shown by “LG33” in FIG. 1, the irradiation light emitted from the irradiation light collecting device 23 is different from the first part on the measurement target 24 shown in “SP31” in FIG. The second portion on the measurement object 24 indicated by “SP32” is irradiated.

  In addition, the reflected light (or part of the reflected light) from the measurement object 24 is incident on the same irradiation condensing device 23 from which the irradiation light is emitted and is condensed, and then propagates through the optical fiber 25. And supplied to the spectroscopic means 26.

  For example, the reflected light (or part of the reflected light) reflected by the first or second part on the measurement target object 12 indicated by “SP31” or “SP32” in FIG. 1 is incident on the irradiation condensing device 23 as indicated by “LG32” or “LG34”.

  Here, the operation of the embodiment shown in FIG. 1 will be described with reference to FIG. FIG. 2 is a block diagram showing an embodiment of the irradiation condensing device according to the present invention. In FIG. 2, numerals 21, 22, 24 and 25 are assigned the same reference numerals as those in FIG. Is a lens which is a condensing means. The lens 27 constitutes an irradiation condensing device 54.

  When the optical fiber 21 is selected as the optical path by the switching means 20, the output light from the light source 19 propagates through the optical fiber 21 as shown by “LG 41” in FIG. 2 and is collimated by the lens 27 in the irradiation condensing device 54. 2 propagates as parallel light as indicated by “LG42” in FIG. 2, and is irradiated on the first portion on the measurement object 24 indicated by “SP41” in FIG.

  Further, when the optical fiber 22 is selected as the optical path by the switching means 20, the output light from the light source 19 propagates through the optical fiber 22 as indicated by “LG 43” in FIG. 2 and is output by the lens 27 in the irradiation condensing device 54. The light is collimated, propagates as parallel light as indicated by “LG44” in FIG. 2, and is applied to the second portion on the measurement object 24 indicated by “SP42” in FIG.

  On the other hand, the reflected light (or part of the reflected light) from the measurement object 24 enters the irradiation condensing device 54 as indicated by “LG45” in FIG. 2 or “LG46” in FIG. The light is condensed on the optical fiber 25 by the lens 27 in the optical device 54. The condensed light propagates through the optical fiber 25 as shown by “LG47” in FIG. 2 and is supplied to the spectroscopic means 26 for spectroscopic analysis.

  For example, when a lens of “f = 50 mm” is used as the lens 27 constituting the irradiation condensing device 54, an optical fiber of “NA≈0.22” is used as the condensing optical fiber 25, and the condensing optical fiber is used. When the 25 incident ends are installed at the focal position of the lens 27, the reflected light from the portion of the object of measurement 24 having a diameter of “about 22 mm” can be captured.

  On the other hand, for example, when the irradiation optical fibers 21 and 22 are optical fibers of “NA≈0.1” and the emission ends of the irradiation optical fibers 21 and 22 are respectively installed at the focal positions of the lenses 27, the measurement object 24 Each of the upper “about 10 mm” portions can be illuminated separately.

  Under such circumstances, when the distance between the emission ends of the irradiation optical fibers 21 and 22 is set to “2 mm”, the two irradiation ranges (diameters) about “about 25 cm” away from the lens 27. 10 mm ") is in a positional relationship (for example, a positional relationship as indicated by" SP41 "in FIG. 2 and" SP42 "in FIG. 2).

  As a result, the emitted light from the two irradiation optical fibers is converted into parallel light to irradiate different parts on the object to be measured, and two reflected lights from the different parts on the object to be measured are collected into one light. By condensing on the optical fiber, it is possible to irradiate and collect a plurality of objects to be measured or a plurality of points in the object to be measured with a simple configuration.

  In the description of the embodiment shown in FIG. 1, the output light from the light source is propagated using an optical fiber. Of course, various types of light may be propagated using a light guide of a spatial propagation type or the like. I do not care.

  In the embodiment shown in FIG. 1, collimation of light for irradiation and condensing of reflected light are performed by the same optical system (lens). However, the optical system (lens) is used for irradiation and for condensing. It may be separated.

  FIG. 3 is a block diagram showing the construction of another embodiment of the irradiation condensing apparatus according to the present invention. In FIG. 3, 28 and 29 are irradiation optical fibers, 30 is an irradiation (collimating) lens, 31 is an object to be measured, 32 is a condensing lens, and 33 is a condensing optical fiber. Further, the lens 30 and the lens 32 constitute an irradiation condensing device 55.

  When the optical fiber 28 is selected as the optical path by the switching means (not shown), the output light from the light source (not shown) propagates through the optical fiber 28 as indicated by “LG51” in FIG. Collimated by the irradiation (collimating) lens 30 in the optical device 55 and propagated as parallel light as indicated by “LG52” in FIG. 1 part is irradiated.

  Further, when the optical fiber 29 is selected as an optical path by the switching means (not shown), the output light from the light source (not shown) propagates through the optical fiber 29 as indicated by “LG53” in FIG. Collimated by the irradiation (collimating) lens 30 in the irradiation condensing device 55 and propagated as parallel light as indicated by “LG54” in FIG. The second part is irradiated.

  On the other hand, the reflected light (or part of the reflected light) from the measurement object 31 is incident on the irradiation condensing device 55 as indicated by “LG55” in FIG. The light is condensed on the optical fiber 33 by the lens 32 for use. The condensed light propagates through the optical fiber 33 as shown by “LG56” in FIG. 3 and is supplied to the spectroscopic means (not shown) for spectroscopic analysis.

  Further, in the embodiment shown in FIG. 1, the irradiation function and the light collecting function are integrated to constitute the irradiation light collecting device, but the irradiation device and the light collecting device may be separated.

  FIG. 4 is a block diagram showing the construction of another embodiment of the irradiation condensing device according to the present invention. In FIG. 4, 34 and 35 are irradiation optical fibers, 36 is a lens for irradiation (collimation), 37 is an object to be measured, 38 is a lens for condensing, and 39 is an optical fiber for condensing. The lens 36 constitutes an irradiation means 56, and the lens 38 constitutes a condensing device 57.

  When the optical fiber 34 is selected as the optical path by the switching means (not shown), the output light from the light source (not shown) propagates through the optical fiber 34 as indicated by “LG61” in FIG. 56 is collimated by an irradiation (collimating) lens 36 and propagates as parallel light as indicated by “LG62” in FIG. The part is irradiated.

  Further, when the optical fiber 35 is selected as the optical path by the switching means (not shown), the output light from the light source (not shown) propagates through the optical fiber 35 as indicated by “LG63” in FIG. Collimated by the irradiation (collimating) lens 36 in the irradiation device 56, propagates as parallel light as indicated by "LG64" in FIG. 2 is irradiated.

  On the other hand, the reflected light (or part of the reflected light) from the measurement object 37 enters the light collecting device 57 as indicated by “LG65” in FIG. The light is condensed on the optical fiber 39 by the lens 38. The condensed light propagates through the optical fiber 39 as shown by “LG66” in FIG. 4 and is supplied to the spectroscopic means (not shown) for spectroscopic analysis.

  In the description of the embodiment shown in FIG. 1, the reflected light from the object to be measured is collected. However, the light transmitted through the object to be measured may be condensed.

  FIG. 5 is a block diagram showing the construction of another embodiment of the irradiation condensing apparatus according to the present invention. In FIG. 5, 40 and 41 are irradiation optical fibers, 42 is an irradiation (collimating) lens, 43 is an object to be measured, 44 is a condensing lens, and 45 is a condensing optical fiber. The lens 42 constitutes the irradiation means 58, and the lens 44 constitutes the light condensing device 59.

  When the optical fiber 40 is selected as an optical path by the switching means (not shown), the output light from the light source (not shown) propagates through the optical fiber 40 as indicated by “LG71” in FIG. 58 is collimated by a lens 42 for irradiation (collimation), propagates as parallel light as indicated by “LG72” in FIG. The part is irradiated.

  Further, when the optical fiber 41 is selected as an optical path by the switching means (not shown), the output light from the light source (not shown) propagates through the optical fiber 41 as indicated by “LG73” in FIG. Collimated by the irradiation (collimating) lens 42 in the irradiation device 58, propagates as parallel light as indicated by “LG74” in FIG. 2 is irradiated.

  On the other hand, the transmitted light (or part of the transmitted light) from the object to be measured 43 enters the light collecting device 59 as indicated by “LG75” in FIG. The light is condensed on the optical fiber 45 by the lens 44. The condensed light propagates through the optical fiber 45 as shown by “LG 76” in FIG. 5 and is supplied to the spectroscopic means (not shown) for spectroscopic analysis.

  In the description of the embodiment shown in FIG. 1, the irradiated part on the object to be measured is switched, but it may be used so as to expand the measurement area by irradiating simultaneously.

  Further, in the description of the embodiment shown in FIG. 1, it is described that the emitted light from the two irradiation optical fibers is made into parallel light and different portions on the object to be measured are irradiated. You may irradiate a 3 or more different part on a to-be-measured object using a 3 or more several irradiation optical fiber.

  In the description of the embodiment shown in FIG. 1, the output light of the light source is switched using the switching means for switching the optical path. However, a plurality of light sources may be provided and sequentially turned on / off.

  Further, as in the embodiment shown in FIG. 1 and the like, when the reflected light from the object to be measured is collected, the object to be measured is irradiated from an oblique direction, and therefore the irradiated portion of the object to be measured is elliptical. However, if there is a need to avoid this situation, it can be solved by making an opening or correcting the shape of the irradiation light in advance by a prism or the like.

1 is a block diagram showing a configuration of an embodiment of a spectroscopic analysis apparatus using an irradiation condensing apparatus according to the present invention. 1 is a configuration block diagram showing an embodiment of an irradiation condensing device according to the present invention. It is a block diagram which shows the other Example of the irradiation condensing apparatus which concerns on this invention. It is a block diagram which shows the other Example of the irradiation condensing apparatus which concerns on this invention. It is a block diagram which shows the other Example of the irradiation condensing apparatus which concerns on this invention. It is a block diagram which shows an example of the spectroscopic analyzer using the conventional irradiation condensing apparatus. It is a block diagram which shows an example of the conventional irradiation condensing apparatus. It is a block diagram showing another example of a conventional spectroscopic analyzer.

Explanation of symbols

1, 8, 19 Light source 2, 5, 10, 13, 16, 18, 21, 22, 25, 28, 29, 33, 34, 35, 39, 40, 41, 45 Optical fiber 3, 11, 17, 23 , 51, 54, 55 Irradiation condensing device 4, 12, 24, 31, 37, 43 Object to be measured 6, 15, 26 Spectroscopic means 7, 27, 30, 32, 36, 38, 42, 44 Lens 9, 14, 20 switching means 50, 52, 53 Spectroscopic analyzer 56, 58 Irradiating means 57, 59 Condensing device

Claims (5)

In the irradiation condensing device that irradiates the object to be measured with light from the light source and collects and supplies the reflected light from the object to be measured.
A plurality of irradiation optical fibers for propagating light from the light source;
A condensing optical fiber that propagates reflected light from the object to be measured; and
The emitted light of the plurality of irradiation optical fibers is converted into parallel light so as to irradiate different portions on the object to be measured and reflected light from the different portions on the object to be measured, respectively. An irradiation condensing device comprising: a lens for condensing light. In the irradiation condensing device that irradiates the object to be measured with light from the light source and collects and supplies the reflected light from the object to be measured.
A plurality of irradiation optical fibers for propagating light from the light source;
A condensing optical fiber that propagates reflected light from the object to be measured; and
Irradiation lenses for irradiating different portions on the object to be measured with the emitted light of the plurality of irradiation optical fibers as parallel light,
An irradiation condensing apparatus comprising: a condensing lens that condenses reflected light from different portions on the object to be measured on the condensing optical fiber. In the irradiation condensing device that irradiates the object to be measured with light from the light source and collects and supplies the reflected light from the object to be measured.
It consists of a plurality of irradiation optical fibers that propagate the light from the light source, and an irradiation lens that irradiates different parts on the object to be measured by making the emitted light of the plurality of irradiation optical fibers into parallel light. An irradiation device;
A condensing optical fiber for propagating reflected light from the object to be measured, and a condensing lens for condensing the reflected light from different parts on the object to be measured on the condensing optical fiber, respectively. An irradiation condensing device comprising: a condensing device comprising: In the irradiation condensing device that irradiates the object to be measured with the light from the light source and collects and supplies the transmitted light from the object to be measured.
It consists of a plurality of irradiation optical fibers that propagate the light from the light source, and an irradiation lens that irradiates different parts on the object to be measured by making the emitted light of the plurality of irradiation optical fibers into parallel light. An irradiation device;
A condensing optical fiber for propagating transmitted light from the object to be measured, and a condensing lens for condensing the transmitted light from different parts on the object to be measured on the condensing optical fiber, respectively. An irradiation condensing device comprising: a condensing device comprising: The irradiation condensing device according to any one of claims 1 to 4, wherein the irradiation condensing device is applied to a spectroscopic analyzer.

Images