JP5158596B2 - Scent generation method that gives a sense of perspective from the source of the scent - Google Patents

Description

  The present invention relates to a method for generating a scent, and more particularly to a method for generating a scent that imparts a sense of perspective from a source of scent.

  The fragrance has been widely used as a fragrance in daily life since ancient times. In recent years, a therapy called aromatherapy has been widely known that uses scent components (fragrances) of flowers and medicinal herbs to reduce nerves and reduce stress to maintain and improve mental and physical health.

  Until now, the presentation of scents is often performed continuously, and when scents are continuously generated and perceived by humans, the activity of olfactory cells (nerves) decreases and the scent is not felt. Problems with olfactory adaptation occur. Moreover, in the case of presenting fragrances continuously, once the presentation is interrupted, the fragrance usually does not disappear immediately, and there is a problem of the influence of the remaining fragrance where the fragrance remains in the space for a while. .

Recently, with the development of 3D audio and 3D image technology, the need to provide an environment that gives a sense of realism is increasing, and as a means of providing a greater sense of realism, it responds to changes in sound and video. The presentation of olfactory information is attracting attention.
JP 2008-061937 A Japanese Patent Laying-Open No. 2005-089505 Kaori Otsu, Ami Kadowaki, Yuta Sato, Yuichi Sakauchi, Kenichi Okada, “Pulse injection presentation method of fragrance synchronized with breathing”, Information Processing Society of Japan, Vol.2008, No.7, pp.77-84, ( 2008.1.24)

  The conventional methods of presenting a scent continuously or intermittently to present a realistic scent have the above-mentioned problems of olfactory adaptation and the remaining scent, so video and audio that change over time The scent could not be presented along with the movement. Moreover, it is known from Patent Document 1 or Non-Patent Document 1 that the problem of olfactory adaptation can be solved by injecting a fragrance into a flowing air stream in a pulsed manner. However, even with this method, the viewer simply feels the scent, and the presentation of the scent with a sense of reality such as “approaching” or “moving away” has not been realized.

  This invention solves such a subject and aims at providing the fragrance generating method with a sense of presence by providing the perspective from the fragrance generating source.

The fragrance generating method for imparting a sense of perspective from the fragrance generating source that solves the above-mentioned problems is that the fragrance is pulsed in a flowing air with a pulse width of 0.1 to 0.5 seconds and a pulse interval of 0.6 to In addition to injecting with a pulse of 1.4 seconds , the amount of the perfume emitted with the pulse is increased or decreased to give a sense of perspective from the scent source.

  Further, the increase / decrease in the amount of the fragrance emitted by the pulse is preferably a step increase or a step decrease, and the step increase or the step decrease is each three steps. preferable.

  Further, the stepwise increase rate of the amount of the fragrance is preferably doubled, and the stepwise decrease rate is preferably a half reduction.

  The short time interval is preferably 1.2 to 1.4 seconds, and the minute time is preferably 0.1 to 0.5 seconds.

  According to the present invention, it is possible to provide a scent that gives a sense of perspective.

  Further, according to the present invention, it is possible to provide a sense of perspective such as “go away” and “approach” by presenting a scent.

  Further, by combining the present invention with stereoscopic video technology and 3D audio technology, it is possible to provide a more realistic environment.

  The method for generating a scent that gives a sense of perspective from the scent generation source of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic diagram showing a method of pulse-injecting a fragrance in a short time and at a short time interval. In FIG. 1, 10 is a scent generating device (apparatus), 11 is a scent provided to the user from the scent generating device, 12 is a width (pulse width) in which the fragrance is injected into flowing air for a short time, 13 Indicates a pulse interval, and 14 indicates a pulse ejection of the fragrance.

  In this invention, when inject | pouring a fragrance | flavor into air in a pulse form, it is necessary to make air flow. When the fragrance is injected in a pulsed form while the air is stationary, the diffusion speed of the fragrance in the air is slow, and in normal use, it does not diffuse in a laminar flow state. This is because when the olfactory organ is reached, the result is substantially the same as the method in which the scent is continuously generated and perceived. There is no particular restriction on the air flow speed, but since the scent is felt by the olfactory organ, it is usually preferred to be from about a breeze (0.8 m / sec) to about 2.0 m / sec which is said to be comfortable to the skin. If the wind speed is increased too much, the scent is disturbed and mixed in the air, so that the effect of emitting in a pulse shape is lost.

  Although air in the natural state is used as air, depending on the situation where the present invention is used, for example, air with an increased oxygen concentration may be used. Further, the humidity and temperature of the air may be adjusted.

  The pulse width (injection time) is related to the flow velocity of the flowing air and the pulse interval, but is preferably 0.1 to 0.5 seconds. If it is less than 0.1 seconds, there is a case where the amount of the fragrance injected is small and the scent is not felt. Moreover, since the influence which it has on the perception of fragrance is small even if it exceeds 0.5 second, a fragrance | flavor may be wasted.

  The pulse interval (ejection interval) depends on human respiration.

  In human breathing, the smell of smell is felt when inhaling air (when inhaling). In order to make the scent feel in the sense of smell during inhalation, it is necessary to generate a scent pulse during inspiration. There are two methods for setting the interval between such pulses.

  One is a method of detecting the timing of inhalation using a sensor 15 for sensing respiration as shown in FIG. 2 and generating a scent pulse 14 during inspiration to sense the scent.

  In this method, since a scent is generated by detecting the timing of inspiration using a respiration sensor for sensing respiration, a fragrance can be used effectively. However, since a means for detecting the timing of inspiration such as the respiration sensor 15 and the computer 60 is required, the apparatus becomes large and complicated, and becomes expensive.

  The other method is a method in which a pulse of fragrance is emitted at the timing of inspiration without using such means for detecting the timing of inspiration.

  For human breathing, the average breathing cycle at rest for healthy individuals is 5 seconds. Since the ratio of inspiration and expiration in respiration is 1: 1.5, the average time of inspiration in respiration is 2 seconds. In the inhalation, the section in which the scent is felt is a two-third section from the start to the end of the inspiration, and the time is 1.33 seconds. That is, when the scent is emitted in a cycle of about 1.3 seconds, the scent can be sensed in the average breathing cycle of a healthy person at rest. Moreover, it has been confirmed that the problem of olfactory adaptation is solved or reduced by this pulse injection method (Non-Patent Document 1).

  In addition, since there are some individual differences in the number of breaths per unit time when a healthy person is at rest, the pulse interval can be adjusted in the range of 1.2 to 1.4 seconds. preferable.

  Furthermore, this method can be used other than when a healthy person is resting. In this case, for example, it is possible to adjust within a range of 0.6 to 1.4 seconds so as to be able to cope with quick breathing. Is preferred.

  As an apparatus for carrying out the present invention, any type of device can be used as long as it is capable of pulse-injecting a means for flowing air and a fragrance.

  As a means for flowing air, a blower (fan) having a simple structure and easy operation is preferable, but air may be flowed by other means such as a suction device. When use in a quiet environment is required, it is preferable that the sound generated from the blower be as small as possible.

  As a means for emitting the fragrance in pulses, an on-demand type bubble jet (registered trademark) head used in an ink jet printer is preferable. As shown in FIG. 3, this bubble jet (registered trademark) type head guides the fragrance to the fragrance chamber 21 in the head unit 20a and heats the heater 22 on the head wall surface (23 indicates the heater heating operation). The fragrance is boiled to generate bubbles 24, and the fragrance is discharged (injected) into the air in the form of droplets 25 using the rapid increase in pressure in the head caused by the generation of bubbles. is there. Since the discharged fragrance droplets are extremely fine, they are vaporized 100%. This Bubble Jet (registered trademark) type head can control the amount of fragrance discharged in units of several picoliters, so the fragrance concentration can be easily adjusted by adjusting the amount of fragrance discharged. can do. Further, since the pulse interval can be adjusted in units of 0.1 second, the control becomes easy.

  As a means for discharging the fragrance, an ink jet head using a piezoelectric element may be used instead of the heating means.

  In addition, the present invention can be implemented by any means as long as it is means for spraying perfume other than ink jet means into flowing air and the pulse emission of the present invention is possible.

  FIG. 4 shows an example of a scent pulse ejection head 20 suitable for carrying out the present invention. (In FIG. 4, the rightmost liquid path has the partition constituting the liquid path removed. The heater 22 is exposed). Reference numeral 28 denotes a fragrance tank, and the fragrance is heated by the heater 22 when passing through the liquid passage 27, and is ejected as a droplet 25 from the discharge port 26. A plurality of liquid passages 27 are provided in the discharge head 20b, and heaters 22 are provided in the respective liquid passages 27, and it is possible to perform on / off control for pulse ejection for each liquid passage. ing. Each discharge port 26 has the same diameter. When a switch (not shown) for supplying electricity to the heater 22 is turned on, the fragrance is discharged from the discharge port. For example, when the heaters of two liquid paths are simultaneously turned on, the fragrance is discharged from the two discharge ports. To do. Further, when the heaters of the four liquid passages are simultaneously turned on, the fragrance is discharged from the four discharge ports. As described above, the amount of the fragrance injected into the flowing air can be adjusted depending on how many heaters among the heaters of each liquid passage are turned on. That is, by adjusting the number of heaters to be turned on at the same time, it is possible to increase or decrease the amount of the fragrance injected into the air flowing in one pulse.

  FIG. 5 shows an example of an apparatus 50 for carrying out the present invention, in which 20 is a scent ejection head, 40 is a blower (fan), and the wind speed is 0.1 m / sec in the range of 0.8 to 2.0 m / sec. 42 is a scent discharge port. Reference numeral 43 denotes a wind tunnel, and the fragrance is pulse-injected from the scent pulse ejection head 20 into fine droplets (sprayed) in the flowing air blown from the blower 40 and discharged from the scent discharge port 42. Is done. Reference numeral 60 denotes a control device that controls the injection pulse width of the fragrance (fragrance) ejected from the scent ejection head, the pulse interval, the rotational speed of the blower, and the like. Reference numeral 70 denotes a scent measurement surface. In this embodiment, the distance B between the scent discharge port 42 and the scent measurement surface is 10 cm. The scent measurement surface is a place where a nose (olfactory organ) that senses scent is located.

6 shows an AA cross section including the injection head 20 and the wind tunnel 43 of FIG. 5, and FIG. 7 shows an arrangement of ejection ports of the injection head 20 as seen from the BB cross section of FIG. The apparatus shown in FIGS. 6 and 7 is an example in which two types of fragrance can be discharged into the wind tunnel at the same time or at different injection times. In addition, the arrow C of FIG. 7 shows the flow of air.
The perfume tank 28 is provided with two of 28a and 28b.

  Further, the discharge port is divided into two blocks 201 and 202. Each discharge block can discharge corresponding to a different fragrance. Each discharge block has 128 discharge ports. For example, the discharge block 201 includes discharge ports 201-1, 201-2,... 201-127, 201-128. Similarly, the discharge block 202 also has 128 discharge ports. In the discharge block having these 128 discharge ports, the amount of fragrance discharged can be adjusted from 1 to 128 for each fragrance type by adjusting the number of heaters corresponding to each discharge port simultaneously turned on. Is possible.

  For example, in the case where 10 heaters of a certain fragrance discharge head are simultaneously turned on and discharged from the discharge port, and in the case where 20 heaters of the discharge head are simultaneously turned on for the same fragrance, the latter is doubled with respect to the former. Discharge amount. When none of the heaters in the liquid path to which a certain fragrance is supplied is turned on, the discharge amount of the fragrance is 0 “zero”.

  Of course, it is obvious to those skilled in the art that the number and size of the fragrance tanks, the number of discharge blocks, or the number of discharge ports provided in each discharge block can be increased or decreased as necessary.

  For example, among a plurality of fragrances, a certain fragrance is stored in a large tank, the number of discharge ports of the corresponding discharge head is 256, and other fragrances are stored in a small tank, and the discharge ports of the corresponding discharge head are stored. It can be 128 or 64.

  In addition, when discharging three kinds of fragrances, it is only necessary to provide three or more fragrance tanks and discharge blocks. When discharging more fragrances, the number of fragrances to be discharged is equal to or more than that. A perfume tank and a discharge block may be provided.

  Of course, in the example shown in FIGS. 6 and 7, it is possible to discharge only one kind of fragrance using only one fragrance tank and one discharge block.

  A general-purpose device such as a personal computer (PC) or a microcomputer can be used as the control device 60 for the amount of the fragrance droplets to be ejected and the ejection interval.

  The fragrance used in the present invention may be any of natural fragrances such as lavender, lemon, melon, rosemary, jasmine, coffee, banana, and artificial fragrances that can be pulse-injected with a head such as a bubble jet (registered trademark) system. Any kind of perfume can be used.

  One fragrance can be used alone or a plurality of fragrances can be mixed. Furthermore, the (natural) fragrance extract itself may be used, or it may be used as fragrance water to which water or ethanol is added.

  By the way, it is known that human sensory intensity is proportional to the logarithm of physical stimuli (Tatsuaki Kawasaki, Motoki Nakajima, Mitsuo Tonoike: Characteristics and analytical evaluation of odorous substances, Fragrance Journal, 2003). Since this is considered to be the same for the sense of smell, the following preliminary experiment was conducted to confirm this.

<Preliminary experiment>
First, a recognition threshold value capable of recognizing the type of scent was determined using the devices shown in FIGS. 5 to 7 for 6 subjects (21 to 24 years old: 4 men and 2 women). The pulse width was 0.1 second and the wind speed was 1.8 m / second. As the fragrance, two kinds of natural fragrance extracts of lavender and lemon were used. In addition, each fragrance | flavor which carries out pulse injection was made into the fragrance | flavor water which added water and ethanol to the natural fragrance | flavor extract. The ratio of the natural fragrance extract in the fragrance water is 5% by volume.

  For the pulse injection of the perfume water, a method in which the breathing sensor 15 shown in FIG. In the experiment, in the ejection head 20b shown in FIGS. 4 and 7, a descending method is adopted in which the number of heaters to be simultaneously ejected is increased from a large number (a large injection amount) to a gradually decreasing state (a small injection amount). did.

  During the measurement, lemon and lavender were randomly dispensed in order to avoid preconceptions.

  As a result of the measurement, the average recognition threshold of lavender is 24/128 (that is, the amount of lavender perfume water simultaneously injected from 24 of the discharge ports 128 shown in FIG. 7, 17028 picoliters; natural fragrance extract; Is equivalent to 851 picoliters). That is, the scent of lavender can be recognized when fragrance water is injected from 24 outlets at the same time, but it cannot be recognized by simultaneous injection from 23 outlets. The threshold value is 24.

  Similarly, lemon is 19/128 (that is, the amount of lemon perfume water injected simultaneously from 19 of the outlets 128 shown in FIG. 7, 10545 picoliters, and the amount of natural lemon extract is 527 picos. Equivalent to 1 liter).

  As shown in FIG. 8, the average recognition threshold value obtained in this experiment is the injection level 1, and as shown in FIG. 8, the injection level 2 at which the injection amount is doubled and the injection level 3 at which the injection amount is four times the injection level 1, respectively. The amount of the fragrance water of lavender and lemon (the number of discharge ports for simultaneously injecting the fragrance) was set.

  Next, about two types of fragrance | flavors, it divided | segmented and injected | emitted in one inhalation by the quantity shown in FIG. 8, and the intensity | strength which felt two fragrance | flavors was measured. The measurement was performed by randomly selecting the injection level and measuring the sensory intensity per one intake.

  As a result, at each ejection level shown in FIG. 8, two different kinds of fragrances had the same sensory intensity. That is, for example, at the level of injection 2, the sensation intensity felt by the subject with the amount of lavender fragrance that is simultaneously injected from 48 outlets out of 127 outlets, and 38 out of 127 outlets of lemon fragrance It was confirmed that the sensation intensity felt by the subject was the same depending on the amount simultaneously ejected from the discharge port.

  This result shows that the human olfactory intensity is also proportional to the logarithm of the physical stimulus, and even in the olfaction, the amount of the fragrance is doubled (in the case of increase, 1, 2, 4, 8,. ; In the case of reduction, when it is injected at 1, 1/2, 1/4, 1/8,...), Even if the injection amount is different, the sensory intensity of the two types of perfume is almost the same, This was confirmed by this preliminary experiment.

  Experiments were conducted on the relationship between the injection level and the perspective using the apparatus 50 shown in FIGS. 5 to 7 for 20 subjects (21 to 24 years old: 18 men and 2 women). The pulse width was set to 0.1 second and the wind speed was set to 1.8 m / second.

  In the experiment, the same fragrance water of lavender and lemon as in the preliminary experiment was used, and the subjects were allowed to smell the scents of the combination of all the injection levels of lavender and lemon at the three levels of injection amount shown in FIG. . Then, he asked me to choose between “far” and “close” as a way to feel the scent. As shown in FIG. 9, the scent presentation was performed twice for each scent pulse injection 14, 14 once in total, as shown in FIG. 9, and the way of feeling was examined. .

  The results are shown in FIGS.

  As a result of the experiment, it was found that, regardless of the order of fragrance injection and the injection level, all subjects had selected “distant” for both lavender and lemon at the injection level 1, so that a sense of being far was obtained. Similarly, at injection level 3, it was found that both fragrances felt “close”.

  On the other hand, for injection level 2, the subject's answer includes both “near” and “far”, indicating that there is no absolute sense of perspective.

  From the above, use injection level 1 to make the scent feel far away (if it is far from the scent source), and use injection level 3 to make it feel closer (close to the scent source). I knew it was good. It was also confirmed that the injection level 2 plays an intermediate role in the concept of “far” and “near”.

  As can be seen from FIGS. 10 and 11, this result is the same as that obtained by changing the injection order of lavender and lemon, and does not depend on the type of fragrance.

  From this result, it was found that the perspective can be sensed by gradually increasing or decreasing the amount of the fragrance injected.

  Next, an injection method that produces a dynamic perspective with the movements of “going away” and “approaching” was examined as follows.

  Experiments were conducted on the relationship between the injection level and the perspective using the apparatus 50 shown in FIGS. 5 to 7 for 22 subjects (21 to 27 years old: 20 men and 2 women). The pulse width was set to 0.1 second and the wind speed was set to 1.8 m / second.

  In the experiment, the same fragrance water of lavender and lemon as in the preliminary experiment was used, and the subjects were allowed to smell the scent at the injection amount of three injection levels shown in FIG. The breath sensor 15 of FIG. 2 was used to detect the start of inhalation, and a pulse injection was presented once every inspiration for 6 breaths. At this time, among the injection levels shown in FIG. 8, the injection number of injection level 2 is changed to 0 times, 1 time, and 2 times, and each perfume is 3 with respect to the perspective of “go away” and “approach”. A total of six injection methods were performed for each pattern. This injection method is shown in FIG. In the figure, reference numeral 14 denotes pulse emission of fragrance.

  The number of injections at the injection level 1 and the injection level 3 was allocated so that the number of injections obtained by subtracting the number of injection levels 2 from the total 6 times was as uniform as possible. The test subjects were allowed to smell the scents of such 6 patterns of injection methods for each fragrance, and were selected from the seven evaluation items shown in FIG.

  Here, dynamic perspective does not mean that the recipient feels that the fragrance suddenly moves away or that the fragrance suddenly approaches, but that the fragrance gradually moves away or fragrance It is thought that it is to get a smooth feeling `` getting closer and closer '', so among the above evaluation items, the injection method with the most responses (ii) and (iv) is `` go away '' `` Suppose that it is to perform a perspective effect of “approaching”.

  In order to compare the way of feeling due to the difference in the number of injections at injection level 2, the result of comparing the number of people who selected (ii) while paying attention only to (ii) of the answers to the three injection methods of “go away” 14 shows. Similarly, FIG. 15 compares the number of persons who chose (iv) among the responses to the three approach methods “approaching”.

  14 and 15, regardless of the type of fragrance, when the number of injections at the injection level 2 is 0, less than half of the people answered that they feel “go away” or “approach”. About 70% of the respondents answered that they felt “go away” or “approached” about 90% when the number of injections at injection level 2 was 2.

  Therefore, by using this scent presentation method that changes the injection amount in stages, it is possible to realize a perspective effect, and in order to produce a dynamic perspective, the number of injections at the injection level 2 is more than once. Two times were found to be suitable.

  According to the present invention, it was confirmed by the following experiment that the perspective effect is possible even when the respiration sensor is not used.

  As described above, when a healthy person is at rest, when the pulse emission interval is set to a length of 1.3 seconds and the fragrance is pulsed, it has an olfactory characteristic that senses the fragrance without adapting to the olfaction. It has been.

  Therefore, using the same perfume water of lavender and lemon as in the preliminary experiment, using the apparatus 50 shown in FIGS. 5 to 7, the subjects smelled the scent at three levels of injection amount shown in FIG. .

  In order to present perfume water so that the scent is felt by every inspiration during 6 breaths, 30 seconds corresponding to 6 breaths are divided into three equal parts. From the results of Example 2 above, the injection level Since the number of injections of 2 is suitable for 2 times, pulse injection of the injection level 2 is performed for 10 seconds from the middle 10 seconds to 20 seconds in the period of 30 seconds so as to correspond to 2 breaths. It was decided. As shown in FIG. 16, when “going away”, level 3 pulse is emitted for the first 10 seconds, level 1 pulse is emitted for the last 10 seconds, and when “close”, The level 1 pulse was emitted for 10 seconds, and the level 3 pulse was emitted for the last 10 seconds. In FIG. 16, reference numeral 14 denotes pulse emission.

  For such an injection method, 20 subjects (21 to 27 years old: 17 men, 3 women) smell each scent, and the best way to feel the scent The evaluation shown in FIG. We had you choose from item.

  As a result of experiments on each of lavender and lemon, it was found that 80 to 95% of people could obtain the sensation (ii) or (iv) shown in FIG. 13 by this injection method.

  Therefore, according to the present invention, it was confirmed that a scent perspective effect can be performed without using a respiration sensor.

  Even if the present invention is carried out alone, it is clear that the initial effects can be obtained. However, when the present invention is carried out in combination with three-dimensional sound and stereoscopic image technology, further effects can be exhibited.

  In particular, the presentation of a scent with a sense of perspective is desired as a realistic sensation of scent presentation combined with three-dimensional sound and stereoscopic video. For example, when presenting a situation of sightseeing in a lavender field, a distant lavender field is copied as a stereoscopic image, and an image gradually approaching the lavender field is presented. At this time, the scent of the lavender from the lavender field, which is the source of the scent, is first felt, and as you approach it, the scent feels stronger, and presents a scent that gives you a sense of perspective. Can produce.

  Also, as the lavender fragrance from the lavender field, which is the source of the lavender fragrance, gradually weakens, along with the stereoscopic image on the way from the lavender field to the field where the melon is cultivated and the three-dimensional sound of the birdsong By providing a scent that produces a sense of perspective such that the melon scent from the melon field, which is the source of the melon scent, gradually becomes stronger, it is possible to produce a realistic sensation.

The conceptual diagram which shows the fragrance generating method of this invention. The conceptual diagram which shows the fragrance provision method which uses a respiration sensor. The operation | movement conceptual diagram of the head of the bubble jet (registered trademark) system used when implementing the fragrance generating method of this invention. The conceptual diagram of the head which carries out the pulse injection of the fragrance | flavor for implementing the fragrance generating method of this invention. The figure which shows an example of the apparatus which enforces the fragrance generating method of this invention (partially broken view). FIG. 6 is a cross-sectional view of the apparatus shown in FIG. 5 taken along the line AA including the injection head 20 and the wind tunnel 43. 7 is an enlarged view of the ejection port array of the ejection head viewed from the direction of arrow B in FIG. The amount of each fragrance injected relative to the injection level. Measurement of the amount of pulse emission that senses the distance of two types of fragrances. How to feel the perspective of the injection level of the measurement shown in FIG. 9 (after lavender / lemon). FIG. 9 is a perspective view of the measured injection level shown in FIG. 9 (lemon tip / after lavender). The schematic diagram of the injection | emission method which presents the effect of perspective using a respiration sensor. An evaluation item that indicates how the scent is felt. The graph which shows the result of how to feel (feeling to go away) by the difference in the frequency | count of injection of the injection level 2 in the injection method of FIG. FIG. 13 is a graph showing the result of how to feel the difference in the number of injections at the injection level 2 in the injection method of FIG. The schematic diagram of the injection | emission method which presents the production of the perspective using an olfactory characteristic.

Explanation of symbols

10 Aroma generating device
11 Fragrance (fragrance)
12 Pulse ejection width 13 Pulse interval 14 Fragrance pulse ejection 15 Respiration sensor 20 Pulse ejection head (assembly)
20a head unit 20b discharge head 21 fragrance chamber 22 heater 23 heater heating operation 24 bubble
25 Fragrance droplet 26 Discharge port 28, 28a, 28b Fragrance tank 40 Blower (fan)
42 Scent outlet 43 Wind tunnel 60 PC (control device)
70 Aroma measurement surface

Claims (5)

The air flowing, perfume in pulse width is 0.1 to 0.5 seconds, with pulse interval is emitted in pulses of 0.6 to 1.4 seconds, the pulse width per perfume emitted by the pulse A method for generating a scent that gives a sense of perspective from the source of the scent by increasing or decreasing the amount of the scent. The fragrance generating method for imparting a sense of perspective from the fragrance generation source according to claim 1, wherein the increase or decrease in the amount of the fragrance emitted by the pulse is a stepwise increase or a stepwise decrease. The fragrance generating method for imparting a sense of perspective from the fragrance generating source according to claim 2, wherein the stepwise increase rate of the amount of the fragrance is doubled, and the stepwise decrease rate is a half reduction. The method for generating a scent that imparts a sense of perspective from the scent generation source according to claim 2 or 3, wherein the stepwise increase or decrease is in three steps. The fragrance generating method for imparting a sense of perspective from the fragrance generating source according to any one of claims 1 to 4, wherein the fragrance is of two different types, and the pulse injection timing of each fragrance is different.

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