JP6423535B2 - Optical component, holding unit, and biological light measuring device - Google Patents

Description

  The present invention relates to an optical component and a biological light measurement device, and more particularly, to a biological light measurement device that obtains information inside a living body by irradiating light on the living body and measuring a change in the amount of light that has passed through the living body, and used therein. It relates to optical components.

  As a technique for non-invasively measuring the internal state of a living body, a technique for obtaining biological information by measuring blood circulation, hemodynamics, and hemoglobin change by light irradiation is known. Measurement by light irradiation is simple because it has a small light generation mechanism and does not require special shield equipment used for measurement by MRI or X-ray CT, for example.

  An example of a technique related to a biological light measurement device that measures a change in blood dynamics in a living body is disclosed in Patent Document 1. In this apparatus, the light generated by the light source is transmitted through the optical fiber for light irradiation to irradiate the subject, and the light passing through the inside of the subject is detected by the optical fiber for light detection, guided to the photodetector, and photoelectrically detected. An electrical signal is acquired by conversion. In this apparatus, an optical fiber for light irradiation and an optical fiber for light detection are used in close contact with the scalp as a light detection probe.

JP 2001-286449 A

  In the apparatus described in Patent Document 1, when a plurality of persons are inspected by one apparatus in a medical field, the clean state is maintained by wiping the contact portion with the living body every time the measurement target is changed. However, wiping takes time, and even if wiping is performed, deposits are not completely removed, and there is a problem in terms of hygiene. Further, by making the contact part with the living body disposable, it becomes possible to easily maintain a high hygiene state. However, since the constituent members of the probe such as an optical fiber are generally expensive, the cost becomes high when disposable. .

  In addition, for example, a technique is known in which an optical fiber or an element that performs light irradiation or light detection is fixed in a state of being isolated from the surface of a living body using a holder. When a holder is used, the trouble of wiping off optical fibers and elements can be saved. In addition, since the holder that comes into contact with the living body can be discarded separately from the optical fiber and the element, it can be used at low cost.

  However, for example, when the tip of the optical fiber for light irradiation is fixed while being isolated from the surface of the living body, the irradiation light spreads, and not only the target measurement target region but also the region outside the measurement target region is irradiated with light. The In this case, since the biological information related to the region other than the measurement target region is also reflected in the detection result, the measurement accuracy decreases.

  In addition, even when the tip of the optical fiber for light detection is fixed in a state of being isolated from the surface of the living body, the light receiving region that passes through the inside of the subject and is received by the optical fiber is widened, and the measurement accuracy is lowered.

  An object of the present invention is to provide an optical component and a biological light measurement device that can easily maintain a sanitary state at low cost and can perform light irradiation or light detection with high accuracy.

  As a preferred embodiment of the optical component according to the present invention, a state in which the subject is irradiated with light, or a support member that supports an element that detects light from the subject, and the support member is isolated from the subject And a light guide mechanism that guides the irradiation light emitted from the element or the light from the subject.

  A preferred embodiment of the biological light measurement device according to the present invention is a biological light measurement device that irradiates light to a subject and detects light from the subject, and irradiates the subject with light. A first support member that supports the first element, and a first support member that is held in a state where the first support member is isolated from the subject and is detachably installed on the first support member A first optical component having a holding unit and a first light guiding mechanism for guiding irradiation light emitted from the first element, and a second element for detecting light from the subject are supported. A second support member that holds the second support member in a state of being separated from the subject, and is detachably installed on the second support member; and the subject A second light guiding mechanism for guiding light from the second light guiding mechanism.

  ADVANTAGE OF THE INVENTION According to this invention, the optical component and biological light measuring device which can maintain a sanitary state easily at low cost and can perform light irradiation or light detection with high precision are realizable.

3 is a cross-sectional view for explaining the configuration of an optical component according to Embodiment 1. FIG. It is sectional drawing for demonstrating the structure of the optical component which provided the photon detection element as an optical member. It is a block diagram which shows the structure of the biological light measuring device which uses the optical component of Example 1. FIG. It is sectional drawing for demonstrating the structure of the optical component provided with the suction cup as a contact part. 6 is a cross-sectional view for explaining a configuration of an optical component according to Example 4. FIG. FIG. 10 is a cross-sectional view for explaining the configuration of an optical component according to Example 5. 10 is a cross-sectional view for explaining a configuration of an optical component according to Example 6. FIG. It is a figure which shows the state which mounted | wore the surface of the subject with the optical component which concerns on Example 7. FIG.

  FIG. 1 is a cross-sectional view for explaining the configuration of the optical component 100 according to the first embodiment. FIG. 1A shows a state before the support plate 102 is integrated with the holding portion 103. As an element provided in the optical component, a light source that irradiates light to the subject may be provided, or a light detection element that detects light that has passed through the subject may be provided. In FIG. An example of the case will be described.

  The optical component 100 includes a light source 101 that irradiates light to the subject 120, a support plate 102 that supports the light source 101, a holding unit 103 that holds the support plate 102, a contact portion 104 that is in close contact with the subject 120, and a light source And a light conduction hole 105 which is a light guiding mechanism for guiding a part of the irradiation light emitted from 101.

  A holding unit 150 is configured by the holding unit 103, the close contact unit 104, and mirror surface units 161 to 162, which will be described later. The holding unit 150 is detachably attached to the support plate 102.

  As the light source 101, for example, a semiconductor laser, a titanium sapphire laser, a light emitting diode, or the like can be used.

  The support plate 102 has a substantially circular planar shape (see FIG. 1C), and a screw mechanism 102a is formed on the outer periphery thereof. The support plate 102 is integrated with the holding portion 103 by fitting the screw mechanism 102 a to the screw mechanism 103 a formed on the inner wall of the holding portion 103. On the other hand, by releasing this fitting state, the support plate 102 can be separated from the holding portion 103.

  The holding part 103 has a diameter of the opening substantially equal to the diameter of the support plate 102 so that the hollow cylinder forms an annular shape, and the support plate 102 is fitted into the hollow opening of the ring. It is formed in size. The holding part 103 is provided with a close contact part 104 so as to close the opening part opened to the subject 120 side.

  The contact portion 104 is formed of a black gel sheet material having high adhesiveness, and is formed in a circular shape having a hole at the center. The close contact portion 104 is installed so that the outer peripheral edge thereof is in contact with the inner wall of the holding portion 103, and is placed in contact with the surface of the subject 120 so that the holding portion 103 and the support plate 102 are covered. It has a function of fixing on the specimen 120.

  A mirror surface portion 162 is formed on the upper surface of the contact portion 104 and the inner wall surface of the holding portion 103, and a mirror surface portion 163 is formed on the installation surface of the light source 101 of the support plate 102. The mirror surface portions 162 to 163 are formed of a light reflective material.

  The light conduction hole 105 is formed in the close contact portion 104 and the mirror surface portion 162, and the mirror surface portion 161 is formed of a light reflective material on the inner wall surface of the light conduction hole 105.

  In Example 1, the contact portion 104 is formed of a black gel-like sheet member. However, if the mirror surface portion 162 is provided on the entire upper surface of the contact portion 104, the contact portion 104 does not necessarily have to be black. . However, it is preferable to make the contact portion 104 black because, for example, even if the mirror surface portion 161 is not formed up to the lower end portion of the photoconductive hole 105, light leakage from the photoconductive hole 105 can be prevented. .

  FIG. 1B is a view showing a state in which the support plate 102 is integrated with the holding portion 103, and FIG. 1C is a view of the optical component 100 of FIG. 1B viewed from the support plate 102 side. It is a top view.

  As shown in FIG. 1B, the light source 101 is held in a state of being isolated from the subject 120 by holding the support plate 102 by the holding unit 103. The support plate 102 is configured to be removable from the holding unit 103 by lifting a knob 107 provided at one end of the surface opposite to the installation surface of the light source 101 upward.

  By integrating the holding unit 103 and the support plate 102, a space 108 communicating with the light conduction hole 105 is formed inside the holding unit 103. As described above, the mirror surface portions 162 and 163 are provided on the upper surface of the close contact portion 104 forming the space 108, the inner wall surface of the holding portion 103, and the installation surface of the light source 101 of the support plate 102. However, it is in a state surrounded by the mirror surface parts 162 and 163.

  As shown in FIG. 1B, since the light source 101 is held by the holding unit 103 in a state of being isolated from the surface of the subject 120, the light irradiation range by the light source 101 is as shown in FIG. It extends in a range 110 indicated by a middle one-dot chain line. For this reason, the irradiation range 110 of the light source 101 includes not only a target measurement target region (for example, a region immediately below the light source 101) but also a region outside the measurement target region.

  In the optical component 100, the irradiation light from the light source 101 is shielded by the contact portion 104 and the mirror surface portion 162, and the light that has entered the photoconductive hole 105 is guided to the surface of the subject 120. Therefore, the range in which the surface of the subject 120 is irradiated with light is limited to the opening range 111 that opens to the subject 120 side of the photoconductive hole 105. As shown in FIG. 1, the diameter of the opening range 111 of the light conducting hole 105 is smaller than the diameter of the light irradiation range 110 by the light source 101. Accordingly, it is possible to prevent a decrease in measurement accuracy due to the reflection of the biological information of the region outside the target measurement target region.

  Further, if the light shielded by the close contact portion 104 and the mirror surface portion 162 is not irradiated on the surface of the subject 120, light is lost correspondingly. In the optical component 100, mirror surface portions 162 and 163 are provided on the surface forming the space 108 communicating with the light conducting hole 105. Therefore, the irradiation light blocked by the contact portion 104 and the mirror surface portion 162 is reflected by the mirror surface portions 162 and 163 on the upper surface of the contact portion 104, the inner wall surface of the holding portion 103, and the installation surface of the light source 101 of the support plate 102. And guided to the photoconductive hole 105. The light guided to the photoconductive hole 105 is finally guided to the surface of the subject 120 while being reflected by the mirror surface portion 161. For this reason, the loss of light due to the provision of the shielding portion can be reduced.

  Further, as described above, the light source 101 of the optical component 100 is held in a state of being isolated from the subject 120 by the support plate 102. For this reason, the hygienic state of the light source 101 can be maintained and used without wiping off the light source 101.

  In addition, as described above, the optical component 100 includes the holding unit 150 in a replaceable manner. For this reason, for example, when the adherent part 104 or the holding part 103 is contaminated due to biological material adhering to the holding part 103 from the subject 120, the holding unit 150 is discarded as a separate body from the light source 101. Can do. For this reason, the disposable use at low cost becomes possible.

  FIG. 2 is a cross-sectional view for explaining the configuration of an optical component 200 provided with a light detection element that detects light that has passed through a subject as an optical member.

In the optical component 200, a holding unit 250 is configured by a holding unit 203, a close contact unit 204, and mirror surface units 261 to 262 to be described later. Yes.
The optical component 200 shown in FIG. 2 is the same as the configuration of the optical component 100 shown in FIG. 1 except that a light detection element 201 is provided instead of the light source 101, and detailed description thereof is omitted.

  As the light detection element 201, for example, a photoelectric conversion element such as a photodiode can be used.

  In the optical component 200 shown in FIG. 2, the light conducting hole 205 serving as a light guiding mechanism is formed in the close contact portion 204 and the mirror surface portion 262, and the mirror surface portion 261 is light reflective on the inner wall surface of the light conducting hole 205. It is made of material.

  As shown in FIG. 2, the light detection element 201 is held in a state of being isolated from the surface of the subject 220. For this reason, the receivable range of the light emitted from the subject 220 by the light detection element 201 extends to a range 210 indicated by a one-dot chain line in FIG. In addition to (for example, a region immediately below the light detection element 201), a region outside the target light receiving region is also included.

  In the optical component 200, the light emitted from the surface of the subject 220 is shielded by the contact portion 204 and the mirror surface portion 262, and the light incident from the light conduction hole 205 communicates with the light conduction hole 205 while being reflected by the mirror surface portion 261. The space 208 is guided to. Therefore, the range of light guided to the space 208 is limited to the opening range 211 of the light conducting hole 205 toward the subject 220. As shown in FIG. 2, the diameter of the opening range 211 of the photoconductive hole 205 on the subject 220 side is formed smaller than the diameter of the receivable range 210 by the light detection element 201. Therefore, it is possible to prevent a decrease in measurement accuracy due to receiving outgoing light emitted from a region outside the intended light receiving region.

  Further, in the optical component 200 shown in FIG. 2, like the optical component 100 shown in FIG. 1, mirror surface portions 262 and 263 are provided on the entire surface forming the space 208 communicating with the light conducting hole 205.

  For this reason, even if the emitted light from the subject 220 is emitted from the photoconductive hole 205 in various directions in the space 208, the emitted light is light from the inner wall surface of the holding unit 203 and the support plate 202. The light is reflected by the mirror surface portions 262 and 263 on the installation surface of the detection element 201 and the upper surface of the contact portion 204 and finally guided to the light detection element 201. For this reason, the loss of light due to the light guided to the space 208 leaking out of the holding unit 203 can be reduced.

  In FIGS. 1 and 2, an example in which a gel-like sheet member is used as the contact portions 104 and 204 with respect to the subject is shown. However, for example, a suction cup 250 as shown in FIG. 4 may be used as the contact portion. it can. The suction cup 250 can be formed of a resin material such as rubber.

  By using the suction cup 250 as the contact portion, for example, in the case of a gel-like sheet member, even when the adhesion to the subject is insufficient, the suction cup 250 can obtain a sufficient adhesion state to the subject.

  The optical components 100 and 200 described above can be individually installed on the surface of the subject. Further, the optical components 100 and 200 may be installed on a subject after being fixed to a belt-like member prepared separately, for example. This also applies to Examples 2-3 described later.

  FIG. 3 is a block diagram illustrating a configuration of the biological light measurement device using the optical component according to the embodiment. In FIG. 3, for example, the optical component 100 shown in FIG. 1 can be used as the light irradiation unit, and for example, the optical component 200 shown in FIG. 2 can be used as the light detection unit.

  In FIG. 3, 1 is a light irradiation unit, 2 is a light detection unit, 3 is a subject, 4 is a control unit, 5 is a processing unit, 6 is a display unit, and 7 is a storage unit. The control unit 4 controls the light irradiation unit 1 to irradiate the subject 3 with light having a predetermined wavelength. The control unit 4 controls the light detection unit 2 to detect light that passes through the inside of the subject 3 and is emitted from the surface of the subject 3. The light detection unit 2 photoelectrically converts the detected light and outputs it to the processing unit 5 as an electrical signal. The processing unit 5 calculates the intensity of the electrical signal output from the light detection unit 2 and outputs the calculation result to the display unit 6 and the storage unit 7. The intensity output from the processing unit 5 is displayed on the display unit 6 and stored in the storage unit 7. Each component is controlled by the control unit 4.

  FIG. 5 is a cross-sectional view for explaining the configuration of the optical component 300 according to the fourth embodiment. In the following description, a case where a light source is provided as an optical member will be described as an example. However, the optical component of Example 4 may be configured to include a light detection element as an optical member.

  In FIG. 5, 312 is a glass rod, 313 is a protective filter. Although the light source is not illustrated in FIG. 5, the light source is installed inside the glass rod 312 at a position where the glass rod 312 and the support plate 302 are in contact with each other.

  FIG. 5 shows a cross-sectional view of a state in which the support plate 302 and the holding portion 303 are integrated. In the optical component 300 as well, as in the first embodiment, the support plate 302 is configured to be detachable from the holding portion 303.

  In the optical component 300, a holding unit 350 is configured by a holding unit 303, a close-contact unit 304, and mirror surface units 361 to 362 described later, and the holding unit 350 is provided to be detachable from the support plate 302 and can be replaced. Yes.

  The basic configuration of the fourth embodiment is the same as that of the first embodiment except that the glass rod 312 and the protective filter 313 are provided, and the description of the configuration common to the first embodiment is omitted.

  The glass rod 312 extends so that one end side covers the light source and the other end reaches the light source side opening of the light conducting hole 305. Light emitted from the light source is guided into the light conduction hole 305 by the glass rod 312.

  The protective filter 313 is provided so as to cover the opening of the photoconductive hole 305 on the subject 320 side. The protective filter 313 isolates the inner region of the holding unit 303 from the surface of the subject 320 so that the tip of the glass rod 312 and the light source do not contact the subject.

  The protective filter 313 only needs to be formed of a light transmissive material having light transmissive properties with respect to light from the light source and light emitted from the subject 320, and for example, a glass substrate can be used.

  Further, as the protective filter 313, for example, a neutral density filter such as a liquid crystal filter can be used. In this case, the light transmittance is adjusted to an appropriate value by adjusting the voltage applied to the liquid crystal filter by the control unit 4 (see FIG. 1). By providing a liquid crystal filter as the protective filter 313, for example, even when the amount of light irradiated from the light source is too large, the amount of light irradiated on the subject can be controlled to an appropriate amount.

  In the example shown in FIG. 5, the glass rod 312 is installed with a predetermined gap between it and the protective filter 313. Thereby, the support plate 302 can be easily removed from the holding portion 303.

  In FIG. 5, a mirror surface portion 361 is formed on the inner wall surface of the light conducting hole 305, and a mirror surface portion 362 is formed on the upper surface of the contact portion 304.

  In the optical component 300 according to the second embodiment, the light emitted from the light source is emitted into the light conduction hole 305 by the glass rod 312. The light emitted into the photoconductive hole 305 is guided toward the subject 320 while being reflected by the mirror surface portion 361 provided on the inner wall surface of the photoconductive hole 305. Further, the light leaking from the photoconductive hole 305 into the space 308 communicating with the photoconductive hole 305 is shielded by the close-contact portion 304 and the mirror surface portion 362 provided on the upper surface of the close-contact portion 304, and to the surface of the subject 320. Is prevented from being irradiated.

  In the optical component shown in FIG. 5, when a light detection element is provided instead of the light source, the light emitted from the surface of the subject 320 is shielded by the contact portion 304 and the mirror surface portion 362 and is not shown. The light incident into the conduction hole 305 is guided to the glass rod 312 while being reflected by the mirror surface portion 361, and is guided to the light detection element by the glass rod 312.

  Also in the optical component 300 of the second embodiment, the mirror surface portion may be provided not only on the inner wall surface of the light conducting hole 305 and the upper surface of the contact portion 304 but also on the inner wall surface of the holding portion 303 and the light source installation surface of the support plate 302. Is possible.

  The protective filter 313 can also be applied to the configurations of the first embodiment and the third to fourth embodiments described later.

  FIG. 6 is a cross-sectional view for explaining the configuration of the optical component 400 according to the fifth embodiment. In the following description, a case where the light source 401 is provided as an element will be described as an example. However, the optical component 400 according to the fourth embodiment may be configured to include a light detection element as an element.

  In FIG. 6, 401 is a light source, 402 is a support plate, 407 is a knob, 403 is a frame, 404 is a bottom plate member, 405 is a light conducting hole, 408 is a space communicating with the light conducting hole, 409 is a holding portion, 410 Is a close contact portion, and 411 is a spring material.

  In the optical component 400, the frame body 403, the bottom plate member 404, the holding portion 409, the close contact portion 410, and the spring material 411 constitute a holding unit 450, and this holding unit 450 is detachable from the support plate 402 and can be replaced. Is provided.

  In the optical component 100 of the first embodiment, the holding portion 103 and the close contact portion 104 are formed integrally with the light conducting hole 105. However, in the optical component 400 of the fifth embodiment, the holding portion 409 and the close contact portion 410 are optically connected. It is formed as a separate body from the conduction hole 405.

  The frame body 403 has a hollow cylindrical shape, and a bottom plate member 404 is provided on one end side of the opening of the frame body 403 so as to be in contact with the inner peripheral surface thereof. The frame body 403 has a circular planar shape, and a light conducting hole 405 serving as a light guiding mechanism is formed by a hollow cylindrical portion protruding from the center. Although not shown in FIG. 6, a mirror surface portion is formed on the inner surface of the bottom plate member 404.

  The support plate 402 is configured to be detachable from the frame body 403. By fitting a screw mechanism 402a formed on the outer peripheral surface of the support plate 402 to a screw mechanism 403a formed on the inner wall of the frame body 403, It is integrated with the frame body 403. The support plate 402 can be detached from the frame body 403 by lifting the knob 407 upward.

  The holding portion 409 has a hollow cylindrical shape having a diameter larger than the outer diameter of the frame body 403, and is installed so as to surround the outer periphery of the frame body 403.

  A leg 409 a having a predetermined width is extended toward the inner peripheral side of the opening of the holding unit 409 on the subject 420 side. A close contact portion 410 is attached to the bottom surface of the leg portion 409a. The holding unit 409 is erected on the subject 420 by placing the contact portion 410 in contact with the surface of the subject 420. For example, as in the first embodiment, a gel-like sheet member can be used for the contact portion 410.

  The holding portion 409 is connected to the frame body 403 by a spring material 411. For this reason, as the support plate 402 is integrated with the frame body 403, the light source 401 installed on the support plate 402 is held in a state of being isolated from the surface of the subject 420 by the holding unit 409.

  The holding portion 409 can be displaced independently of the light source 401 by being connected to the frame body 403 by a spring material 411. For this reason, for example, when the optical component 400 is installed on the subject 420 having an uneven surface, it can be mounted while adjusting the installation position of the holding unit 409 so as to follow the uneven shape of the subject 420. Yes, a good installation state can be obtained.

  In the optical component 400 shown in FIG. 4, the light emitted from the light source 401 is shielded by the upper surface of the bottom plate member 404, and the light incident in the light conduction hole 405 is guided to the surface of the subject 420. When a light detection element is provided as an optical member, the light emitted from the surface of the subject is shielded by the lower surface of the bottom plate member 404, and the light incident on the photoconductive hole 405 is guided to the space 408.

  FIG. 7 is a cross-sectional view for explaining the configuration of the optical component 500 according to the sixth embodiment. Example 4 has a configuration including a scraping unit that scrapes hair when hair is present in the measurement target region of the subject.

  7A is a schematic diagram illustrating a state in which the scraping unit 510 is mounted on an optical component having the same configuration as that of the first embodiment, and FIG. 7B is a plan view illustrating the configuration of the scraping unit 510. It is.

  The scraping part 510 has a pressing part 512 having an observation window 511 at the center, a scraping piece 513, and a movable part 514. The holding portion 512 has a circular planar shape, and is configured so that the holding portion 503 can be installed in a region within the observation window 511. The scraping piece 513 has a triangular shape and is disposed on the outer peripheral edge of the pressing portion 512. The movable portion 514 is installed at a position facing the scraping portion 513 on the outer peripheral edge of the pressing portion 512.

  FIG. 7C is a diagram illustrating a state before and after the movement of the scraping unit 510, and FIG. 7D is a diagram continuously illustrating a movement when the hair is scraped by the scraping unit 510. .

  When mounting the optical component 500 on the subject, first, the end of the scraping piece 513 is moved around the movable portion 514 as shown in FIG. 7D while pressing the scraping piece 513 against the subject. Thereby, the hair is scraped by the tip of the scraping piece 513. When the end of the scraping piece 513 further moves to the state shown in the right diagram of FIG. 7C, the hair scraped by the scraping piece 513 is pressed by the pressing portion 512.

  At this time, the holding unit 503 is installed in a region within the observation window 511, and finally, the close contact unit 504 is pressed against the surface of the subject, so that the entire optical component 500 is placed on the subject. Thereby, the light irradiation on the subject from the light source 501 or the detection of the light emitted from the subject by the light detection element 501 can be performed without being blocked by the hair. For this reason, highly accurate measurement can be performed.

  FIG. 8 is a diagram illustrating a state in which the optical components according to Examples 1 to 2, and 4 to 5 are mounted on the surface of the subject.

  In FIG. 8, a test object is formed as a connection body 604 in which one light irradiation unit 601 provided with a light source and one light detection unit 602 provided with a light detection element are arranged in a line and connected by a connection tool 603. An example of wearing is shown. FIG. 8 shows an example in which the connection body 604 is attached to the forehead portion of the subject.

  In biological light measurement, generally, biological light measurement is performed a plurality of times for the same subject. At this time, if the installation positions of the light irradiation unit 601 and the light detection unit 602 are different for each measurement, the measurement accuracy is lowered. For this reason, it is desirable that the light irradiation unit 601 and the light detection unit 602 are installed at the same location each time for the same subject.

  In the example shown in FIG. 8, the connecting body 604 is installed in a first fixing mechanism 605 that keeps the distance from the nasal root part constant and a second fixing mechanism 606 that keeps the distance from the ear part constant. , Attached to the subject.

  The first fixing mechanism 605 is configured such that a connecting body 604 is installed at one end of a wire that sandwiches the nasal root from both sides, and the second fixing mechanism 606 is provided at one end of a wire laid on the ear. A connecting body 604 is installed.

  As the first fixing mechanism 605 and the second fixing mechanism 606, it is preferable to use a material having a certain degree of strength, such as a metal material molded into a wire shape or a plastic molded body.

  By attaching the coupling body 604 to the subject in a state where the coupling body 604 is installed in the first fixing mechanism 605 or the second fixing mechanism 606, the coupling body 604 is, for example, a reference position of the subject such as a nasal root portion or an ear portion. It is possible to mount the device while maintaining a certain distance from it.

  In the example illustrated in FIG. 8, the second fixing mechanism 606 includes a scale 607, and the distance from the nose root portion or the ear portion to the coupling body 604 is variably configured. In this case, the user grasps the distance from the nose root portion or the ear portion to the connection body 604 in advance, so that the connection body 604 is positioned at the same position each time without adjusting the installation position for each measurement. It becomes possible to install in.

DESCRIPTION OF SYMBOLS 1,601 ... Light irradiation part, 2,602 ... Light detection part, 3 ... Subject, 4 ... Control part, 5 ... Processing part, 6 ... Display part, 7 ... Memory | storage part, 100, 200, 300, 400, 500 Optical components 101, 401 Light source 102, 202, 302, 402 Support plate 103, 203, 303, 409, 503 Holding unit 102a 103a 402a 403a Cutting mechanism 104 204 204 , 410, 504 ... contact part, 105, 205, 305, 405 ... light conduction hole, 107,407 ... knob, 108, 208, 308, 408 ... space communicating with the light conduction hole, 110 ... irradiation range of the light source, 210: Receivable range by photodetection element, 111, 211: Opening range of photoconductive hole, 120, 220, 320, 420 ... Subject, 161, 162, 163, 261, 2 2, 263, 361, 362 ... mirror surface part, 201 ... light detection element, 250 ... suction cup, 312 ... glass rod, 313 ... protective filter, 403 ... frame body, 404 ... bottom plate member, 409a ... leg part of holding part, 411 ... Spring material, 501 ... Light source or light detection element, 510 ... Scraping part, 511 ... Observation window, 512 ... Pressing part, 513 ... Scraping piece, 514 ... Moving part, 603 ... Connector, 604 ... Connector, 605 ... No. 1 fixing mechanism, 606 ... second fixing mechanism, 607 ... scale

Claims (15)

A support member for supporting an element for irradiating the subject with light or detecting light from the subject;
Holding the support member in a state of being isolated from the subject, and a holding unit detachably installed on the support member;
Have a, and a light guide mechanism to guide light from the irradiation light or the subject is irradiated from the element,
The inner surface of at least a portion and the light guide mechanism of a surface forming a space communicating with said light guide mechanism to said retaining portion coupled to the support member, the light reflective material that you have mirror portion is formed Features optical components. A support member for supporting an element for irradiating the subject with light or detecting light from the subject;
Holding the support member in a state of being isolated from the subject, and a holding unit detachably installed on the support member;
A light guide mechanism for guiding the irradiation light emitted from the element or the light from the subject,
The holding part is provided with a close contact portion that is in close contact with the subject, and the close contact portion is formed of a gel-like member. A support member for supporting an element for irradiating the subject with light or detecting light from the subject;
Holding the support member in a state of being isolated from the subject, and a holding unit detachably installed on the support member;
A light guide mechanism for guiding the irradiation light emitted from the element or the light from the subject,
A light-transmissive protective member is provided at an opening of the light guide mechanism that opens toward the subject, and the protective member is a liquid crystal filter that varies a light transmittance according to an applied voltage. Optical parts. The element is a light emitting element that irradiates the subject with light,
The light guide mechanism forms a circular cross section, its diameter, optics according to any one of claims 1-3, characterized in that less than the diameter of the irradiation range of light emitted from the light emitting element parts. The element is a light detection element that detects light from the subject,
The optical component according to any one of claims 1 to 3, wherein the light guide mechanism has a circular cross section and a diameter thereof is smaller than a light receiving range of the light detection element. The optical component according to claim 2 , wherein the light guiding mechanism is a light conduction hole formed in the contact portion. The optical component according to claim 2 , wherein the contact portion is a black body. The optical component according to claim 2 , wherein the holding portion is provided separately from the light guide mechanism and is displaceable independently of the support member. The optical component according to any one of claims 1 to 3, further comprising a fixing mechanism that maintains a constant distance from a reference position of the subject to the element. Wherein the holding portion and the front Symbol light guide mechanism is a holding unit together, the holding unit, any one of claims 1-3, characterized in that the interchangeable with respect to the support member 1 The optical component according to item. A holding unit for holding a supporting member that supports an element that irradiates light to the subject or detects light from the subject,
Holding the support member in a state of being isolated from the subject, and a holding unit detachably installed on the support member;
A light guide mechanism for guiding the irradiation light emitted from the element or the light from the subject,
A holding unit, wherein a mirror surface portion is formed of a light reflective material on at least a part of a surface forming a space communicating with the light guiding mechanism in the holding portion and an inner surface of the light guiding mechanism. A holding unit for holding a supporting member that supports an element that irradiates light to the subject or detects light from the subject,
Holding the support member in a state of being isolated from the subject, and a holding unit detachably installed on the support member;
A light guide mechanism for guiding the irradiation light emitted from the element or the light from the subject,
The holding unit is provided with a close contact portion that is in close contact with the subject, and the close contact portion is formed of a gel-like member. A holding unit for holding a supporting member that supports an element that irradiates light to the subject or detects light from the subject,
Holding the support member in a state of being isolated from the subject, and a holding unit detachably installed on the support member;
A light guide mechanism for guiding the irradiation light emitted from the element or the light from the subject,
A light-transmissive protective member is provided at an opening of the light guide mechanism that opens toward the subject, and the protective member is a liquid crystal filter that varies a light transmittance according to an applied voltage. And holding unit. Supports an element that irradiates light to the subject or detects light from the subject, and holds a support member having a light guide mechanism that guides irradiation light emitted from the element or light from the subject A holding unit for
Holding the support member in a state isolated from the subject, and having a holding unit that is detachably installed on the support member;
The holding portion includes a connection mechanism that connects the holding portion and the support member so as to be independently displaceable in order to hold the support member;
The holding unit is provided with a close contact portion that is in close contact with the subject, and the close contact portion is formed of a gel-like member. 11. An optical component according to claim 1, comprising both an element that irradiates light to the subject and an element that detects light from the subject, and provides light to the subject. And measuring information from the subject by detecting light from the subject .

Images