JP2016163633A - Odor generation device, odor generation/deodorant device, device for investigating brain reaction to odor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an odor generation device that can easily and accurately control an amount of odor to be generated.SOLUTION: The odor generation device includes: a tank 12 storing specified odor liquid 11 and including a nozzle 13 for discharging the odor liquid 11; compression means for compressing the odor liquid 11 in the nozzle 13; pressure control means 16 for controlling the compression means; and a laser 21 for irradiating an odor droplet that is the odor liquid discharged by the nozzle 13 with a laser beam 22.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an odor generating apparatus, an odor generating / deodorizing apparatus, and an apparatus for examining a brain reaction caused by an odor.

  In the conventional fragrance supply apparatus, each of a plurality of fragrance test bottles is connected to one end of an individual hose, and an odor discharge tool (funnel) is connected to the other end of the hose, and the subject smells the fragrance discharged from the funnel. . An aroma valve is provided in the middle of the hose. By controlling the opening and closing of the valve, the aroma from a plurality of aroma test bottles is selected and supplied to the subject. In addition, while the subject is smelling the scent, the activity state of the subject's brain is detected by an electroencephalograph (see, for example, Patent Document 1).

JP-A-62-231638

  In the above conventional example, the amount of fragrance supplied to the subject's nose is controlled by the valve opening time. Therefore, in order to accurately control the amount of fragrance supplied to the subject's nose, the valve opening time is set to There is a problem that it is necessary to control, and the opening time control of this valve is complicated.

  Even if the opening time can be accurately controlled, the relationship between the opening time of the valve and the amount of released fragrance is not always constant, and therefore the amount of released fragrance can be kept constant. There is a problem that it is difficult.

  The above problem also arises with respect to odors other than fragrance.

  An object of this invention is to provide the odor generating apparatus which is easy to control accurately the quantity of the odor to generate | occur | produce.

  Another object of the present invention is to provide an odor generating / deodorizing apparatus that can maintain a constant amount of generated odor and can quickly erase the generated odor.

  The odor generating apparatus according to the present invention includes a tank having a nozzle that stores a predetermined odor generating liquid and discharges the odor generating liquid, a pressurizing unit that pressurizes the odor generating liquid in the nozzle, and the pressurizing unit. And a laser that irradiates laser light to the odorant droplets that are the odorant liquid discharged from the nozzle.

  The odor generating / deodorizing apparatus of the present invention stores a predetermined odor generating liquid, a tank having a nozzle for discharging the odor generating liquid, a pressure control means for controlling the pressurizing means, and the nozzle discharging A laser for irradiating the odorant droplets, which are odorant liquids, with laser light, and a deodorizing means for erasing the odor generated from the odorant droplets after the laser light irradiates the odorant droplets. It is characterized by having.

  According to the odor generating apparatus of the present invention, there is an effect that it is easy to accurately control the amount of generated odor.

  According to the odor generating / deodorizing apparatus of the present invention, the amount of generated odor can be kept constant, and the generated odor can be quickly erased.

It is a figure which shows the cartridge 10 used for Example 1 of this invention. It is a figure which shows the odor generator 20 which is Example 1 of this invention. It is a figure which shows the cartridge 10a which is a modification of the cartridge 10, and the pressure control means 16a. It is a figure which shows the smell generation and deodorizing apparatus 30 which is Example 2 of this invention. It is sectional drawing which looked at the odor generating and deodorizing apparatus 30 from the VV line | wire shown in FIG. 3 is a flowchart showing the operation of the odor generating / deodorizing apparatus 30. It is a figure which shows the MRI test | inspection apparatus 100 which test | inspects the reaction of the brain by the smell which is Example 3 of this invention. It is a figure which shows the mask M2 and the odor processing apparatus 40 with which the test subject P wears.

  The modes for carrying out the invention are the following examples.

  FIG. 1 is a view showing a cartridge 10 used in Embodiment 1 of the present invention.

  The cartridge 10 is an example of an odor enclosing device, and includes an odor generating liquid 11, a tank 12, a nozzle 13, and a heater 14. A pressure control means 16 is provided outside the cartridge 10.

  The odor generating liquid 11 is a material that generates odor by itself, or generates odor when heated or evaporated. The odor generating liquid 11 is a liquid that generates an irritating odor such as ammonia, a scent of perfume containing a fragrance, a citrus odor, etc. In addition to this, the smell of flowers, the smell of sweat, the smell of spoilage, the smell of burnt, It is a liquid that generates an odor that is a mixture of one or more of all the odors that exist in the world, such as odors of foods such as fish and odors of cooking.

  The tank 12 is a container that stores the odor generating liquid 11.

  The nozzle 13 discharges the odorous liquid 11 from the tank 12 to the outside. The heater 14 is arranged in a part of the nozzle 13 or in the vicinity thereof. When the heater 14 generates heat, the odorous liquid 11 is compressed. By this compression force, the odorous liquid 11 present in the nozzle 13 is It is discharged to the outside of the nozzle 13.

  The heater 14 is an example of a pressurizing unit that pressurizes the odor generating liquid 11 in the nozzle 13.

  The pressure control means 16 applies pressure to the odor generating liquid 11 by heating the heater 14, and controls the amount and timing of emitting the odor generating liquid 11. That is, the pressure control means 16 controls the pressurizing means.

  According to the cartridge 10, if the shape or volume of the nozzle 13 is made constant, the odor concentration by the odor generating liquid 11 to be sealed is made constant, and the heating value of the heater 14 is made constant, the amount of odor generated can be accurately determined. Can be controlled. Moreover, the tank 12 can be easily transported using a material such as a glass bottle that does not need to be damaged.

  FIG. 2 is a diagram showing an odor generating apparatus 20 that is Embodiment 1 of the present invention.

  The odor generating device 20 includes a cartridge 10, a pressure control unit 16, and a laser 21. The laser 21 irradiates the odor generating liquid droplet 11d which is the odor generating liquid 11 discharged from the cartridge 10.

  At the evaporation position PS, where the odor generating droplet 11d evaporates, the odor generating droplet 11d is evaporated by the laser light 22, and the odor corresponding to the odor generating droplet 11d is diffused. The laser 21 generates laser light 22 intermittently.

  Further, after the odor generating liquid droplet 11d is discharged from the nozzle 13, a small amount of the odor generating liquid 11 may adhere to the tip of the nozzle 13. In preparation for this, the tip of the nozzle 13 may be irradiated with laser light after the odor generating droplet 11 is discharged, and the attached odor generating liquid 11 may be evaporated.

  A plurality of cartridges 10 may be provided. In this case, the odor generating liquid 11 corresponding to different odors may be sealed for each cartridge 10.

  FIG. 3 is a view showing a cartridge 10a which is a modified example of the cartridge 10 and a pressure control means 16a.

  The cartridge 10 a is provided with a piezo element 14 a so as to come into contact with the odor generating liquid 11 in the nozzle 13. Both ends of the piezo element 14 a are fixed to the nozzle 13. The pressure control means 16a applies a voltage to the piezo element 14a, so that the piezo element 14a is bent and thereby applies pressure to the odor generating liquid 11.

  According to the odor generating device 20, it is easy to transport a container (cartridge 10) enclosing odor, and if the size and concentration of the odor generating droplet 11 d are made constant, the odor generating droplet is used. Every time 11d evaporates, a certain amount of odor can be reliably generated.

  Further, instead of the combination of the heater 14 and the pressure control unit 16 and the combination of the piezo element 14a and the pressure control unit 16a, a pressurizing unit may be configured by providing a laser for heating the nozzle 13. In this way, the odorant liquid 11 in the nozzle 13 may be pressurized by heating the nozzle 13.

  FIG. 4 is a diagram showing an odor generating / deodorizing apparatus 30 that is Embodiment 2 of the present invention.

  The odor generating / deodorizing apparatus 30 is an apparatus when the cartridge 10 shown in FIGS. 1 and 2 is used.

  FIG. 5 is a cross-sectional view of the odor generating / deodorizing apparatus 30 as viewed from the line VV shown in FIG.

  The odor generating / deodorizing device 30 includes the cartridge 10, the pressure control means 16, the mask M1, the air suction device 26, the laser 21, and the visible light generation source 31, and is generated while generating odor. It is a device that deodorizes odors.

  The mask M1 is provided with a convex lens 23, a concave lens 33, a titanium dioxide film 34, a shielding plate 36, optical fibers F2 and F3, an exhalation passage 37, and an inhalation passage 38.

  The titanium dioxide film 34 is provided with a through hole 35. Further, the odor generating liquid droplet evaporation position PS is a position where the laser light 22 condensed by the convex lens 23 irradiates the odor generating liquid droplet 11d and evaporates the odor generating liquid droplet 11d.

  The optical fiber F <b> 2 forms a path for the laser light 21 toward the convex lens 23. The optical fiber F <b> 3 forms a path for the visible light 32 toward the concave lens 33. The concave lens 33 diffuses visible light 32 and directs it to a wider area of the titanium dioxide film 34. The titanium dioxide film 34 is excited by visible light 32, and when the titanium dioxide film 34 is excited, the titanium dioxide film 34 exhibits a deodorizing function. The through-hole 35 provided in the titanium dioxide film 34 is a through-hole for ensuring a path when the laser light 22 collected by the convex lens 23 is irradiated to the odorous droplet 11d. The shielding plate 36 is for preventing the laser light 22 from irradiating the nose N when the laser light 22 irradiates the odorant droplet 11d.

  The exhalation passage 37 is a passage that discharges the breath exhaled when a person breathes to the outside. The intake passage 38 is a passage through which a breath taken when a person breathes is taken from the outside.

  The mask M1 has a flexible and slightly thick sheet shape, covers the subject's nose N, that is, wraps the convex lens 23, the concave lens 33, the titanium dioxide film 34, and the shielding plate 36, and at least the tip of the subject's nose N. Cover.

  Next, the operation of the odor generating / deodorizing apparatus 30 will be described.

  FIG. 6 is a flowchart showing the operation of the odor generating / deodorizing apparatus 30.

  First, in S1, the mask M1 is mounted on the subject's nose N, and the cartridge 10 is mounted on the mask M1. Note that a laser 21 and a visible light source 31 are connected to the mask M1 through optical fibers F2 and F3, and an air suction device 26 is connected through an air suction pipe P1.

  When the pressure control means 16 sends an electric current to the heater 14 in S2, the heater 14 is heated, and by this heat, the odor generating liquid 11 in the nozzle 13 is boiled, and bubbles 15 are generated due to the boiling. The odor generating liquid 11 present at the tip portion of the nozzle 13 is ejected and becomes a odor generating liquid droplet 11d and protrudes from the nozzle 13.

  In S3, the odor generating droplet 11d reaches the odor generating droplet evaporation position PS.

  The odor generating liquid droplet evaporation position PS is a position where the odor generating liquid droplet 11d is evaporated by the laser light 22 condensed by the convex lens 23.

  In S4, the laser 21 emits the laser beam 22, and this laser beam 22 is collected by the convex lens 23, the laser power per unit area of the laser beam 22 is increased, and is present at the odorant droplet evaporation position PS. The odor generating droplet 11d is irradiated. That is, the odor generating droplet 11d is irradiated with the laser light 22 in accordance with the timing at which the odor generating droplet 11d reaches the odor generating droplet evaporation position PS. By irradiating the laser beam 22, the odor generating droplet 11d is evaporated, and the odor is diffused around the nose N.

  In S5, the generated odor reaches the subject's nose N, and the subject feels the odor. Depending on this feeling, the response (activity) of the subject's brain varies. When examining the response of the subject's brain, at least one of NIRS, magnetoencephalograph, and electroencephalograph is used. Unlike MRI, these measuring apparatuses do not affect the measurement results even if a magnetic material is present in the vicinity of the measuring apparatus. Further, MEG may be used instead of MRI.

  In S6, after a predetermined time from the generation of the odor, the visible light source 31 emits visible light 32, the visible light 32 is diffused by the concave lens, and the titanium dioxide film 34 is irradiated with laser light. The titanium film 34 is excited and the titanium dioxide film 34 exhibits a deodorizing function.

  In addition, the titanium dioxide film 34 has titanium dioxide formed in a film shape on a transparent substrate, and titanium dioxide is formed on the nose N side in FIG. In FIG. 4, the titanium dioxide film 34 is provided between the movement path of the odor generating droplet 11d and the concave lens 33. However, the titanium dioxide film 34 is provided between the movement path of the odor generating droplet 11d and the nose N. It may be. In this case, it is preferable to provide a through hole in the titanium dioxide film 34 so that the odor can easily reach the nose N.

  As described above, after the titanium dioxide film 34 exhibits the deodorizing function, in S7, if it is determined that it is necessary to newly generate the odor using the odor generating liquid 11, the operation of S2 to S6 is performed. repeat. That is, the odor is intermittently generated by alternately repeating the operation in which the laser 21 generates the laser light 22 to generate the odor and the operation in which the visible light generation source 31 irradiates the visible light 32 to deodorize. Occurs and deodorizes each time.

  The titanium dioxide film 34 is a kind of photocatalyst and may be applied to a sheet. In this case, the sheet is a transparent sheet or a sheet having a through hole.

  According to the odor generating / deodorizing device 30, it is easy to transport the cartridge 10 enclosing the odor generating liquid 11 corresponding to the odor, and the size of the odor generating droplet 11d can be controlled. Since it is easy, a certain amount of odor can be reliably generated, and the generated odor can be quickly erased.

  In the odor generating / deodorizing apparatus 30, a plurality of cartridges 10 are provided, the odor generating liquid 11 corresponding to a certain kind of odor is enclosed in one cartridge 10, and other cartridges 10 have the same type and different concentrations. You may make it enclose the odor generating liquid 11 corresponding to an odor. Further, the odor generating liquid 11 corresponding to different types of odors having the same concentration may be sealed in each of the two cartridges 10, and further corresponding to different types of odors having different concentrations. The odor generating liquid 11 may be sealed in each of the two cartridges 10. In these cases, the type and concentration of the odor may be displayed on the cartridge 10.

  If the odor generating droplet 11d is discharged from the nozzle 13 and the air suction device 26 sucks air at the same time, the odor generating droplet 11d is easily guided to the odor generating droplet evaporation position PS. In this case, if the laser 21 emits the laser beam 22 at all times, the odorant droplet 11d is necessarily evaporated whenever the odorant droplet 11d passes the odorant droplet evaporation position PS. it can. That is, since it is not necessary to control the timing of irradiating the laser beam 22 in accordance with the timing at which the odor generating droplet 11d moves, the laser 21 can be easily controlled. Further, instead of the laser 21 always emitting the laser beam 22, the laser beam 22 is continuously emitted for a certain time including the time when the odor generating droplet 11d will pass the odor generating droplet evaporation position PS. You may do it.

  Note that the nozzle 13 may be deodorized by irradiating the nozzle 13 with laser light in preparation for a case where even a small amount of the odor titration 11d adheres to the nozzle 13.

  After a predetermined time has elapsed since the odor generating droplet 11d has evaporated, the air suction device 26 sucks air, and the gas (odor) from which the odor generating droplet 11d has evaporated is sucked to the outside via the air suction pipe P1. You may do it.

  In the odor generating / deodorizing apparatus 30, the cartridge 10 a and the pressure control unit 16 a shown in FIG. 3 may be used instead of the cartridge 10 and the pressure control unit 16.

  Furthermore, laser light may be used in place of the visible light 32, and this may be irradiated to the titanium dioxide film 34 to deodorize it. Instead of the titanium dioxide film 34, another photocatalyst (substance) may be used.

  When the activity state of the subject's brain is examined using the odor generating / deodorizing apparatus 30, MEG, NIRS, magnetoencephalograph, and electroencephalograph can be used instead of MRI.

  FIG. 7 is a diagram showing an MRI inspection apparatus 100 that inspects a brain reaction due to odor, which is Embodiment 3 of the present invention.

  In the MRI inspection apparatus 100 for inspecting the brain reaction due to the odor, the MRI 60 shows the reaction (activity state) of the brain of the subject P who smelled the odor diffused in the vicinity of the nose N when the odor drop 11d is evaporated. It is a device to inspect.

  FIG. 8 is a diagram showing an odor generating / deodorizing apparatus 30a configured by the mask M2 and the odor processing apparatus 40 worn by the subject P.

  An MRI inspection apparatus 100 that inspects a brain reaction due to odor includes a preparation room R1 and an MRI room R2.

  In the preparation room R1, an odor processing device 40, a storage device 51, a display device 52, and a control device 53 are provided.

  In the MRI room R2, an MRI 60 is provided, and a subject P lies in the MRI 60.

  A concave lens 33, a titanium dioxide film 34, and a mask M2 covering these are provided in the vicinity of the nose N of the subject P lying in the MRI room R2.

  The odor processing device 40 provided in the preparation chamber R1 is provided with a cartridge 10, a pressure control means 16, a laser 21, an air injection device 25, an air suction device 26, and a visible light source 31. ing. In addition, an odor supply pipe P2, an air suction pipe P1, and an optical fiber F3 are connected between the odor processing apparatus 40 and the mask M2.

  Further, the odor supply pipe P2, the air suction pipe P1, and the optical fiber F3 are gathered to form a pipe assembly P3, and this pipe assembly P3 is provided at the tip of the nose N of the subject P. The mask M2 and the odor processing device 40 are connected.

  The storage device 51 stores the brain activity state data of the subject P examined by the MRI 60, the control contents of the control device 53, and the like.

  The display device 52 displays the brain activity state of the subject P examined by the MRI 60 (particularly, the brain activity state corresponding to the odor supplied to the nose of the subject P), and the odorant liquid sealed in the cartridge 10 11 is a device that displays the name, its concentration, etc., and displays the type, amount, etc. of the odor supplied to the nose N of the subject P.

  The control device 53 is a device that controls the laser 21, the visible light source 31, the air injection device 25, the air suction device 26, and the MRI 60.

  Next, the operation of the MRI inspection apparatus 100 that inspects the brain reaction due to odor will be described.

  The odor generating droplet 11d is evaporated by the laser beam 22, and the odor (gas) generated by the evaporation is carried to the mask M2 by the air injection device 25. When this smell drifts in the vicinity of the nose N of the subject P, the subject P senses it with the nose N, and the brain of the subject P reacts according to this smell, and the reaction of the brain is examined with the MRI 60. That is, in the MRI inspection apparatus 100, the odor is a reaction inspection sample.

  Similar to the operation of the odor generating / deodorizing apparatus 30 shown in FIG. 6, the laser 21 generates the laser light 22, and the laser light 22 generates the odor by evaporating the odor generating droplet 11d. And the operation | movement which sends this generated odor to the nose N via the odor supply pipe P2 and the operation | movement which deodorizes by the visible light generation source 31 irradiating the visible light 32 are repeated alternately. In this process, the brain activity of the subject P can be examined by the MRI 60. In other words, the relationship between odor and brain activity, such as which part of the brain becomes active when there is no change in the brain activity, and what amount of odor is supplied to the nose N It becomes clear.

  The MRI examination apparatus 100 may be provided with an expiration expiration detection sensor (not shown, a sensor such as an anemometer) that detects the expiration expiration. In this case, when the expiration end detection sensor detects the end of expiration, the pressure control means 16 drives the heater 14 and the odorant droplet 11d is ejected from the nozzle 13. Then, the odor generating droplet 11d is evaporated by the laser light 22 to generate odor, and the air injection device 25 may inject high-pressure air so that the odor reaches the periphery of the nose N. .

  As described above, if the odor generating droplet 11d evaporates immediately after expiration, inhalation starts immediately after expiration, and the odor reaches the nose N at this timing, and the odor is effectively applied to the nose N. Inhaled.

  Further, by controlling the number of times the pressure control means 16 generates pressure, the number of the odor generating droplets 11d that are evaporated can be controlled. In addition, in the MRI inspection apparatus 100 that inspects the brain reaction due to odor, the odor droplets 11d discharged from the same cartridge 10 are evaporated one by one and deodorized each time the odor is emitted, That is, MRI measurement may be performed by repeating odor generation and deodorization.

  Further, each of the plurality of cartridges 10 is filled with a odor generating liquid 11 having the same kind of odor and generating a different concentration of odor, and the odor generating liquid droplets 11d are evaporated for each cartridge 10 one by one. It is possible to perform MRI measurement by deodorizing each time a odor is generated, that is, deodorizing, that is, repeating odor generation and deodorization. Further, the MRI measurement may be performed while repeating the odor and deodorization for the odor droplet 11d in which odors of different concentrations are the same. Further, the MRI measurement may be performed on the odor generating droplet 11d that generates odors of different concentrations, while repeating odor generation and deodorization.

  In addition, when the air suction device 26 sucks air in synchronization with the air jet device 25 ejecting air, the movement of the odor that the odor generating droplet 11d has evaporated becomes smooth.

  Further, the odor generated by the laser light 22 irradiating the odor generating droplet 11d is sent out by the air injection device 25 toward the mask M2. In this case, after a predetermined time (after the subject P smells the odor) after the laser light 22 irradiates the odor generating droplet 11d and the odor due to this is supplied to the mask M2, the air ejecting device 25 moves the cartridge 10 If air is jetted from the nozzle 13 through the mask M2 toward the outside of the mask M2 (air suction device 26), the inside of the mask M2 can be efficiently deodorized.

  Further, the diameter φD2 of the laser beam 22 is made slightly larger (or the same diameter) than the diameter φD1 of the odor generating droplet 11d, and the laser 21 is a means for irradiating the laser beam 22. That is, φD1 ≦ φD2. By doing in this way, since the laser beam 22 covers all of the odor droplet 11d, evaporation is performed reliably, and since there are few laser beams 22 that irradiate other than the odor droplet 11d, the laser beam 22 is less wasted and the efficiency of the laser 21 is good.

  Under each of the above conditions, the brain activity of the subject P may be measured with the MRI 60 in different time zones (morning, noon, night, before going to bed, etc.). If it does in this way, the reaction according to the physical condition of the test subject P, piorism, etc. can be investigated.

  The odor generating / deodorizing device 30a may be used for collecting data necessary for cosmetic development. In this way, it is possible to objectively grasp the correlation between odor and comfort.

  In addition, when determining the presence or absence and degree of a brain disorder such as dementia based on the degree of response of the subject's P brain to a predetermined odor, the MRI examination apparatus 100 that examines the brain reaction by MRI is used. May be. In particular, in the above embodiment, since the amount of odor generated can be accurately controlled, the relationship between the amount of odor and the level of brain activity can be accurately grasped. That is, it is expected that the degree of progress of a brain disorder such as dementia can be accurately grasped by using the above embodiment.

  In the above embodiment, the MRI 60 is an example of a brain examination means, but other brain examination means may be used instead. For example, at least one of MEG, NIRS, magnetoencephalograph, and electroencephalograph may be used. The MEG is a device that examines brain activity spatially, and the NIRS is a device that examines brain activity temporally.

  Further, in the MRI inspection apparatus 100, when the MRI 60 is used to check the activity state of the brain of the subject P, the odor processing device 40 is provided outside the MRI room R2, but if the odor processing device 40 is shielded, The odor treatment apparatus 40 can be provided inside the MRI room R2.

  Further, in the odor generating / deodorizing apparatus 30a, a path that bypasses the mask M2 may be provided among the paths from the odor supply pipe P2 to the air suction pipe P1. In this case, doors (not shown) are provided at the entrance and exit of the mask M2, and the door is closed when air passes through the bypass. In this way, when air is sent out from the air injection device 25 with both the doors closed, the air suction device 26 can quickly suck the odor remaining in the odor supply pipe P2.

  In addition, a magnetic material cannot be used in the MRI room R2, but a copper wire, a silver wire, a gold wire, an aluminum wire, or the like is not a magnetic material and can be used in the MRI room R2.

10 ... cartridge,
11 ... Odor generating liquid,
11d ... Odor drop,
13 ... Nozzle,
16 ... Pressure control means,
21 ... Laser,
23 ... convex lens,
26 ... Air suction device,
31. Visible light source,
33 ... concave lens,
34 ... titanium dioxide film,
M1, M2 ... Mask,
40. Odor treatment device,
100: MRI inspection apparatus.

Claims (15)

A tank that stores a predetermined odorant liquid and includes a nozzle that discharges the odorant liquid;
Pressurizing means for pressurizing the odorant liquid in the nozzle;
Pressure control means for controlling the pressurizing means;
A laser for irradiating the odorant liquid droplets, which are the odorant liquid ejected by the nozzle, with laser light;
An odor generator characterized by comprising: In claim 1,
The odor generating apparatus, wherein the pressurizing means is a heater or a piezo element. In claim 1,
The said pressurization means is a laser which heats the said nozzle, and when the said nozzle is heated, the odor generating liquid in the said nozzle is pressurized, The odor generating apparatus characterized by the above-mentioned. In claim 1,
The odor generating apparatus according to claim 1, wherein the laser is means for irradiating an area including an evaporation position where the odor generating droplet is evaporated by the laser light. In claim 4,
The laser is means for irradiating the evaporation position with the laser light when the odorant droplet has arrived at the evaporation position and when the odorant droplet has not arrived at the evaporation position. Odor generator characterized by. A tank that stores a predetermined odorant liquid and includes a nozzle that discharges the odorant liquid;
Pressure control means for controlling the pressurizing means;
A laser for irradiating the odorant liquid droplets, which are the odorant liquid ejected by the nozzle, with laser light;
Deodorizing means for erasing the odor generated from the odor drop after the laser light irradiates the odor drop;
Odor generating / deodorizing device characterized by having In claim 6,
Odor generation / deodorization characterized in that the odor is intermittently generated by alternately repeating the operation in which the laser beam irradiates the odorant droplet and the operation in which the odor eliminating means deodorizes. apparatus. In claim 6,
The odor generating / deodorizing apparatus, wherein the laser is means for constantly irradiating the position where the odor generating droplet is irradiated with the laser light. In claim 6,
The laser is a means for irradiating a laser beam having a diameter slightly larger than the diameter of the odorant droplets, or a laser beam having the same diameter as the diameter of the odorant droplets. Deodorizing device. In claim 6,
The odor generating / deodorizing device, wherein the odor eliminating means is a means for odor eliminating the nozzle and its periphery. In claim 6,
An odor generating / deodorizing apparatus characterized in that, when a plurality of cartridges are provided, odor generating liquids corresponding to different odors are sealed for each cartridge. In claim 6,
The odor generating and deodorizing apparatus is characterized in that the deodorizing means includes a photocatalyst provided in the vicinity of a subject's nose and an optical fiber for guiding light to the photocatalyst. A mask covering the subject's nose;
A tank that stores a predetermined odorant liquid and includes a nozzle that discharges the odorant liquid;
Pressure control means for controlling the pressurizing means;
A laser for irradiating the odorant liquid droplets, which are the odorant liquid ejected by the nozzle, with a laser beam;
An air injection device for sending out the odor generated by the laser light irradiating the odorant droplets toward the mask;
Deodorizing means for erasing the odor generated from the odor drop after the laser light irradiates the odor drop;
A brain examination means for examining the brain state of the subject;
A device for examining the reaction of the brain due to an odor characterized by comprising In claim 10,
The brain examination means is at least one of MRI, MEG, NIRS, magnetoencephalograph, and electroencephalograph, and an apparatus for examining a brain reaction due to odor. In claim 13,
The air ejecting apparatus is an apparatus that ejects air from the nozzle to the outside of the mask through the mask after a predetermined time from the laser light irradiating the odorant droplet. This device examines the reaction of the brain caused by the odor.

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