JP2941115B2 - Method and apparatus for evaluating nail surface morphology - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for evaluating a nail surface morphology and an apparatus therefor, and more particularly to an evaluation method for a nail surface morphology capable of easily evaluating the state of a nail surface morphology and an apparatus therefor.

[0002]

2. Description of the Related Art Although the ratio of nails to the whole is much smaller than that of facial skin, nails can be said to be a highly important part in consideration of total fashion.

[0003] Therefore, it is extremely important to evaluate the fine morphology of the nail surface (nail plate) and to accurately recognize the characteristics thereof in order to care for beautiful nails and nails. 2. Description of the Related Art Conventionally, as a method of knowing a nail surface morphology for grasping a state of a nail, a nail surface (nail plate) is similar to a hair skin (cuticle) on a hair surface, and there are horny cells arranged in a scale. However, a method of enlarging and actually photographing the peeled state and the uneven state of the angular material with a microscope or a camera has been used.

[0004] The images obtained by these methods are visually observed, and the complicated features of the nail shape are interpreted and evaluated.

[0005]

However, in the above-mentioned conventional method, specialized knowledge for evaluating the fine morphology of the nail surface is required, and only a specific person having the specialized knowledge evaluates the nail. I couldn't. For this reason,
A general user with little specialized knowledge could not easily evaluate the fine condition of the nail surface.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a nail surface morphology evaluation method and an apparatus therefor that enable even a general user to easily evaluate the state of the nail surface morphology.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention has the following constitution as a method for evaluating a nail surface morphology and an apparatus therefor. FIG. 1 is a principle diagram of the present invention, and a method for evaluating a nail surface morphology and an apparatus therefor will be described with reference to FIG.

First, the unevenness data of the nail surface is obtained from the nail surface or the nail replica, the obtained unevenness data is converted into a signal having a multi-stage hierarchy, and the converted signal is subjected to waveform processing. The gist of the present invention is to provide a method for evaluating a nail surface morphology, which comprises frequency-modulating a waveform-processed signal and outputting the modulated signal as sound.

Second, the reading means 2 obtains the unevenness data of the nail surface from the nail surface or the nail replica 1 and converts the data to the conversion means 4.
Converts the unevenness data obtained by the reading means 2 into a signal having a multi-level hierarchy. The processing means 9 includes the conversion means 4
The modulation means 13 performs waveform processing on the signal converted by the processing means 9, frequency modulates the signal subjected to the waveform processing by the processing means 9, and outputs the signal modulated by the modulation means 13 as sound. It is configured to

FIG. 13 shows the principle of the third invention. The reading means 2 obtains the unevenness data of the nail surface from the nail surface or the nail replica 1, and the converting means 4 converts the unevenness data obtained by the reading means 2 into a signal having a multi-stage hierarchy.
The pitch conversion means 32 converts the signal converted by the conversion means 4 into a pitch signal determined from the scale number and octave number of the desired scale, and the modulation means 13 is converted by the pitch conversion means 32. The pitch signal is frequency-modulated, and the output means 16 is configured to output the signal modulated by the modulation means 13 as sound.

The reading means 2 is a laser microscope 20 constructed as follows. The laser device 21 irradiates a laser beam to the nail surface or the nail replica 1 and
Scans a laser beam in a predetermined direction. The detector 28 receives the laser light reflected from the nail surface or the nail replica 1, and the moving unit 29 controls the detector 28 so that the output of the detector 28 becomes maximum at each point of the laser light scanned by the scanning unit 25. The nail surface or the nail replica 1 is moved, and unevenness data of the nail surface is obtained from the position information of the moving unit 29.

Further, a sound length generating means 34 and a tempo generating means 35 for outputting a sound length signal and a tempo signal to the modulating means 13 with respect to the pitch signal converted by the pitch converting means 32 are provided. The gist is that

[0013]

According to the present invention, the data of the unevenness of the nail surface is converted into a signal having a multi-level hierarchy, the converted signal is subjected to waveform processing, and the waveform-processed signal is subjected to frequency modulation. And output as a sound. By listening to the frequency of this sound, even a general user who does not have specialized knowledge of the nail surface morphology can easily and intuitively evaluate the characteristics of the nail surface morphology. It is possible to do.

Further, the data on the unevenness of the nail surface is converted into a signal having a multi-level hierarchy, and the converted signal is converted into a pitch signal determined from the scale number and octave number of the desired scale. Further, since the pitch signal can be frequency-modulated to output a pitch using an arbitrary scale as a sound, the user can listen to the desired pitch and evaluate the nail surface morphology.

Further, the user can listen to the desired sound length and tempo to evaluate the nail surface morphology.

[0016]

Embodiment 1 A specific embodiment of the present invention will be described. FIG. 2 is a block diagram showing a first embodiment of a nail surface morphology evaluation apparatus for carrying out the nail surface morphology evaluation method according to the present invention.

In FIG. 1, reference numeral 1 denotes a nail replica of the nail surface, for example, a silicone resin or a mixture of a silicone resin or another rubber base mixed with a curing agent, and a material containing polyvinyl alcohol as a main component. And The nail replica 1 can be obtained by applying such a material to the nail surface, drying it, and peeling it off the nail.

The surface roughness meter 2 scans the nail replica 1 in the form of a nail surface, and obtains the surface roughness of the nail replica 1 as analog data of unevenness. FIG. 3 and FIG. 5 are diagrams showing analog data of irregularities on the nail surface along a certain axis of the nail replica 1.

The signal amplifying device 3 amplifies the analog data of the unevenness of the nail surface taken from the surface roughness meter 2 to a predetermined level, that is, a level conforming to the specification of the A / D converter 4 described later.

The A / D converter 4 converts the amplified analog data of the irregularities on the nail surface from the signal amplifier 3 into a digital signal having a multi-stage hierarchy. In this case,
The gradation is, for example, a specification such as 8, 16, 32, 64, or 128 gradation.

The information processing device 5 is a computer or the like. The information processing device 5 takes in a digital signal of irregularities on the nail surface from the A / D converter 4 and stores the digital signal in a waveform storage device 6 such as a frame memory or the like. The digital signal of unevenness stored in the storage device 6 is read and supplied to the interface 8. The VDT (monitor) 7 displays a digital signal of the unevenness of the nail surface from the A / D converter 4 as an image.

The information processing device 9 is composed of a computer or the like, and fetches a digital signal of the unevenness of the nail surface from the information processing device 5 via the interface 8 and performs processing of the waveform of the signal.

That is, even if a digital signal having irregularities is converted into an analog signal as it is, a sound that is very difficult for human ears to hear will be obtained. In some cases, the frequency may deviate from the human audible frequency range. Therefore, the information processing device 9
Performs processing such as amplifying the amplitude of the digital signal waveform of the irregularities on the nail surface and increasing the frequency.

The waveform storage device 10 stores the waveform of the processed digital signal or supplies the stored digital signal to the information processing device 9. The VDT (monitor) 11 displays the processed digital signal as an image.

The D / A conversion device 12 converts the processed digital signal from the information processing device 9 into a processed analog signal. The variable frequency oscillating device 14 has a frequency variable function and generates a sine wave signal or the like, and supplies the generated sine wave signal to the frequency modulation device 13. As the variable frequency oscillator 14, for example, a commercially available variable frequency oscillator may be used.

The frequency modulator 13 is a D / A converter 1
2 and a sine wave signal from the variable frequency oscillating device 14 and the like, and the magnitude of the amplitude of the processed analog signal is converted into a higher or lower frequency such as a sine wave signal. Obtain a modulated wave.

That is, when the processed analog signal is output as a sound for a certain period of time for evaluating the nail surface, an enormous amount of evaluation data is required. It is not enough to intuitively evaluate the difference in form as a good sound or a bad sound.

Therefore, the processed analog signal is frequency-modulated by the sine wave signal using the frequency modulation device 13. The signal amplifying device 15 includes the frequency modulation device 1
3 is amplified to a level sufficient to drive the speaker 16. The speaker 16 outputs the frequency-modulated wave amplified to a predetermined level as sound.

Next, a description will be given of an apparatus and method for evaluating a nail surface morphology according to the first embodiment configured as described above. First, for example, when the nail replica 1 in a good state is scanned along a certain axis using the surface roughness meter 2, analog data of the unevenness of the nail surface as shown in FIG. 3 is obtained. Further, for example, when the nail replica 1 in a bad state is scanned along a certain axis, analog data of the unevenness of the nail surface as shown in FIG. 5 is obtained.

Next, the analog data of the unevenness on the nail surface is amplified to a predetermined level by the signal amplifying device 3, and the A / A
The digital signal is converted into a digital signal of, for example, 64 gradations by the D converter 4.

Then, the digital signal of the unevenness of the nail surface is displayed on the VDT 11 under the control of the information processing device 9 via the information processing device 5 and the interface 8. While observing the digital signal of the unevenness, a command is given from the outside to the information processing device 9, and the information processing device 9 processes the waveform of the digital signal of the unevenness into an appropriate amplitude and frequency.

Further, the processed digital signal of the unevenness is converted into an analog signal of the unevenness by the D / A converter 12, and the analog signal of the unevenness and the sine wave signal from the variable frequency oscillator 14 are converted into a frequency. The data is taken into the modulation device 13.

When frequency modulation is performed by the frequency modulation device 13, a frequency-modulated wave is obtained in which the magnitude of the amplitude of a digital signal having irregularities is converted into a constant amplitude and a high / low frequency.
Therefore, the peak (for example, a) portion of the unevenness shown in FIG. 3 is converted into a high frequency component as shown in FIG. The valleys (for example, b) of the unevenness shown in FIG.
The signal is converted into a low frequency component as shown in FIG.

Further, the frequency modulation wave from the frequency modulation device 13 is amplified to a predetermined level by the signal amplification device 15 and output to the speaker 16. When a general user listens to the sound of the speaker 16, the peak (valley) interval shown in FIGS. 3 and 5 is expressed as the length of the sound in accordance with the number of data existing there. That is, in a portion corresponding to a wide mountain, a high frequency component is output for a relatively long time.

For example, as shown in FIG. 3, in a fine nail having many narrow peaks, a high sound and a low sound are frequently and frequently repeated. Also, as shown in FIG. 5, in a rough nail having a wide range of peaks (for example, P, Q, R, and S), the difference between a high sound and a low sound is slowly repeated.

On the other hand, a claw having a large difference in height of the unevenness has a large difference between a high sound and a low sound, and a claw having a small difference in the height of the unevenness has a small difference in the sound. In actual experiments,
The sound of a good claw sample was a high-pitched sound like a bird chirping like a curkur, but a bad claw sample had a low-pitched buzz in the middle of a high-pitched crumbling! The impact sound was frequently occurring.

As described above, according to this embodiment, the data of the unevenness of the nail surface is converted into a signal having a multi-stage hierarchy, the converted signal is subjected to waveform processing, and further converted to a waveform-processed signal. The sound is modulated and output as a sound, so you can intuitively and intuitively listen to the high and low frequencies of this sound with the degree of rhythm and tempo comfort. Even a general user who does not have the intuition can easily and intuitively evaluate the characteristics of the nail surface morphology.

In order to further increase the musicality and to effectively output the sound as a highly directable sound flow, for example, a synthesizer or FM having a modulation source and having a modulation function is provided. -A board or the like may be used.

In the case where a function generator having a VCF (voltage controlled oscillation) input terminal is used as the frequency modulation device 13, the digital signal is processed before the frequency modulation according to the required amplitude and frequency. , And convert it to an analog signal and transmit it to the function generator. The signal frequency-modulated by the function generator is output as sound to an external speaker.

When an FM board or a synthesizer is used for the frequency modulation device 13, the digital signal is processed directly to these devices after processing the amplitude and frequency as required before modulation. The frequency-modulated signal is output as a sound to a speaker of itself or an external speaker.

In this embodiment, the interface 8 is omitted, the information processing device 5 and the information processing device 9 can be formed by the same computer, and the monitors 7 and 11 can be shared by one monitor. The storage device 6 can also be shared with the waveform storage device 10.

Embodiment 2 Next, Embodiment 2 of the present invention will be described. FIG. 6 is a block diagram illustrating an apparatus for performing the nail surface morphology evaluation method according to the second embodiment.

In FIG. 6, the apparatus has a laser device 21 for irradiating the nail replica 1 with light to clearly capture the surface morphology of the nail replica 1, an optical lens, and the like. Enlargement optical system 22 for obtaining an optical image at an arbitrary magnification, an optical system conversion device as a detector for converting a magnified optical image into an electric signal for representing the brightness of a nail surface image by a CCD camera or the like. It has a laser microscope 20 provided with 23 and an image storage device 24 for storing digitized electric signals for representing the brightness of the nail surface image.

The laser microscope 20 is shown in more detail in FIG.
It is configured as shown in FIG. The scanning unit 25 is, for example, a rotating mirror, and scans a laser beam from the laser device 21 along a direction of a fixed axis. The half mirror 26 semi-transmits the laser light scanned by the scanning unit 25 and outputs the reflected laser light from the nail replica 1 in the direction of the pinhole 28. The pinhole 28 narrows the reflected laser light and is provided to improve the resolution.

The optical system electrical system 23 obtains a detection output at each point of the laser beam scanned by the scanning unit 25. The moving unit 29 moves the nail surface or the nail replica 1 such that the output of the detector 28 is maximized (that is, focused) at each point of the laser beam scanned by the scanning unit 25. The focus movement memory 30 obtains the unevenness data of the nail surface along the direction of the fixed axis from the position information (Z direction) of the moving unit 29. The signal amplifying device 3 includes the optical-to-electrical-system converting device 2
3 and the output of the focus movement memory 30 are input.

The apparatus includes a signal amplifier 3, an A / D converter 4, an information processor 9, a monitor 7, a frequency modulator 13, a variable frequency oscillator 14, It has a signal amplifying device 15 and a speaker 16.

Next, an apparatus and a method according to a second embodiment will be described with reference to FIGS. First, when laser light is applied from the laser device 21 to the nail replica 1 having a good nail state shown in FIG. 8 or the nail replica 1 having a bad nail state shown in FIG. The laser light is scanned, and the laser light is
The nail replica 1 is radiated through the nail 2. The light reflected from the nail replica 1 is enlarged by the magnification optical system 22 at an arbitrary magnification. Then, the enlarged optical image is converted into an electric signal for representing the brightness of the nail surface image by the optical system electric system converter 23. At this time, the moving section 29 moves the nail replica 1 in the Z direction so that the detected output becomes maximum at each point of the scanned laser beam.

That is, the focus is adjusted at each point, and the position information in the Z direction at this time is stored in the focus movement memory 30. The position information and the output of the optical-to-electrical-system converter 23 are input to the signal amplifier 3 as electric signals.

If the electric signal is, for example, one scanning line of the nail surface image (corresponding to a fixed axis in the first embodiment), it becomes irregular data including a DC component E as shown in FIG. DC component E
Is due to constant light from the laser device 21,
The unevenness data is based on the form of the nail surface. Then, the electric signal is amplified to a predetermined level by the signal amplifier 3.

The amplified electric signal is converted into a digital electric signal of, for example, 64 gradations by the A / D converter 4, and the digital electric signal for representing the brightness of the nail surface image is controlled by the information processing device 9. Is displayed on the monitor 7.

While watching the monitor 7, the information processing device 9
, The DC component E is removed, and the frequency is processed. The processed digital electric signal and a sine wave signal from the variable frequency oscillator 14 are taken into the frequency modulator 13.

When the frequency modulation is performed by the frequency modulation device 13, a frequency-modulated wave in which the magnitude of the amplitude of the digital electric signal is converted into a high-low frequency having a constant amplitude. Further, the signal amplifying device 15 amplifies the frequency modulated wave from the frequency modulating device 13 to a predetermined level and outputs the amplified signal to the speaker 16.

Therefore, the waveform shown in FIG. 8 is similar to that shown in FIG. 3. For a fine nail having a narrow mountain, the difference between the high sound and the low sound is repeated quickly. . On the other hand, the waveform as shown in FIG. 9 is similar to that of FIG. 5, and therefore, for a rough nail having a wide peak, a difference between a high sound and a low sound is slowly repeated.

Therefore, even in the second embodiment, the same effect as in the first embodiment can be obtained. In the second embodiment,
Since the information processing device 5, the waveform storage device 6, the monitor 7, and the interface 8 of the first embodiment are not used, the configuration can be simplified.

<Embodiment 3> FIG. 10 is a block diagram showing an apparatus for carrying out a method for evaluating a nail surface morphology according to Embodiment 3 of the present invention. In the third embodiment, a light transmissive replica 1a in which a nail surface morphology is transferred is used in place of the above-described nail replica repeller 1.

This will be described with reference to FIG. When the light transmitting replica 1a is irradiated with light from the laser device 21, the light passes through the light transmitting replica 1a, and the transmitted light is enlarged by the magnification optical system 22 at an arbitrary magnification. Subsequent processing is the same as that of the second embodiment. Even in the third embodiment, the same effect as that of the second embodiment can be obtained.

<Embodiment 4> FIG. 12 shows Embodiment 4 of the present invention.
It is a block diagram which shows the apparatus for implementing the nail surface morphology evaluation method of FIG. In this embodiment, an FM board includes a reference scale setting device 31, a pitch conversion device 32, a sound length generation device 34, a tempo generation device 35, a timbre generation device 33, and a frequency modulation device 13.

The reference scale setting device 31 is based on a multi-level signal output from the A / D conversion device 4,
A digitized reference scale signal is generated. For example, when the level of the hierarchical level of a signal having a multi-level hierarchical level is “0”, it is assumed to be a c sound (a sound of C). The reference scale setting device 31 outputs this reference scale signal and a signal having a multi-level hierarchy to the scale conversion device 32.

The pitch conversion device 32 includes a reference scale setting device 3
A signal having a multi-level hierarchy using the reference scale signal output from 1 as a reference scale is converted into an FM board pitch signal determined from the scale number and octave number of the desired scale. For example, a signal having 256 levels of hierarchy is converted into 12 octaves (consisting of whole and semitones) in 8 octaves, and
Obtain M board pitch signal. In this case, a signal having a 256-level hierarchy is divided into eight sections of 32, and each signal having a 32-level hierarchy is distributed to each octave.

Further, a signal having 32 levels of hierarchies is
, Rounded and converted to a 12-stage signal. Then, as shown in FIG. 13, the signal values are sequentially assigned in ascending order of the signal values in the 12 steps, starting from the above-mentioned c sound (sound of c). In FIG. 13, a sharp # indicates a sound that is one semitone higher than a predetermined whole sound.

In this way, the FM board pitch signal of 12 octaves and 8 octaves converted by the pitch conversion device 32 is input to the frequency modulation device 13. On the other hand, the sound length generation device 34 outputs a desired sound length (note) to the frequency modulation device 13. The tempo generation device 35 outputs a desired tempo signal to the frequency modulation device 13.

The timbre generator 33 generates harmonics that are the same as or close to the desired timbre, and outputs the generated timbre signal to the frequency modulator 13. Further, the FM board pitch signal, sound length signal, and timbre signal are frequency-modulated by the frequency modulator 13, amplified by the signal amplifier 15, and output as sound to the speaker 16.

That is, the speaker 16 can output a pitch using an arbitrary scale, can output a sound with an arbitrary length and tempo, and can specify a timbre and output the timbre.

As a result, the user can hear a desired tone such as a piano sound or a flute sound. In addition, it has become possible to evaluate more pleasant and wide-ranging nail surface morphologies, such as ensemble based on signals obtained from existing music, various rhythm patterns, and skin replicas of different people. Furthermore, it becomes possible to listen to and evaluate the sound at a desired sound length and tempo, and a wider range of sound expression is possible.

[0065]

According to the present invention, the data of the unevenness of the nail surface is converted into a signal having a multi-level hierarchy, the converted signal is subjected to waveform processing, and further the waveform processed signal is processed. Since the frequency is modulated and output as a sound, the characteristics of the nail surface morphology can be easily and intuitively understood even by a general user who does not have specialized knowledge about the nail surface morphology by listening to the frequency of this sound. Can be evaluated.

Further, the data of the unevenness of the nail surface is converted into a signal having a multi-stage hierarchy, and the converted signal is converted into a pitch signal determined from the scale number and octave number of the desired scale. Further, since the pitch signal can be frequency-modulated to output a pitch using an arbitrary scale as a sound, the user can listen to the desired pitch and evaluate the nail surface morphology.

[Brief description of the drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a block diagram illustrating an apparatus for performing the method for evaluating a nail surface morphology according to the first embodiment.

FIG. 3 is a diagram showing unevenness data of a nail surface obtained by scanning a fixed axis of a nail replica of a person having a good nail state with a surface roughness meter.

FIG. 4 is a diagram illustrating a frequency modulation device.

FIG. 5 is a diagram showing unevenness data on a nail surface obtained by scanning a nail replica of a person having a poor nail condition on a fixed axis of the nail surface with a surface roughness meter.

FIG. 6 is a block diagram showing an apparatus for implementing the method for evaluating a nail surface morphology according to the second embodiment.

FIG. 7 is a configuration diagram of a laser microscope according to a second embodiment.

FIG. 8 is a laser microscope photograph showing the nail replica {the surface state of the nail (form of living thing)} and the unevenness data showing the uneven shape of the nail surface of a person with a good nail condition.

FIG. 9 is a laser microscope photograph showing a nail replica {nail surface state (creature form)} and unevenness data showing the uneven shape of the nail surface of a person with a poor nail condition.

FIG. 10 is a block diagram showing an apparatus for carrying out a method for evaluating a nail surface morphology according to a third embodiment.

FIG. 11 is a principle diagram of the third invention.

FIG. 12 is a block diagram showing an apparatus for performing the nail surface morphology evaluation method according to the fourth embodiment.

FIG. 13 is a diagram for explaining an FM board pitch signal converted by the pitch conversion device according to the fourth embodiment.

[Explanation of symbols]

 1. Nail replica 2. Surface roughness meter 3. Signal amplification device 4. A / D conversion device 5. Information processing device 6. Waveform storage device 7. VDT (monitor) 8. Interface 9. ..Information processing device 10..waveform storage device 11..VDT (monitor) 12 ... D / A converter 13 ... frequency modulator 14 ... frequency sine wave oscillator 15 ... signal amplifier 16 ... speaker 20 ・ ・ Laser microscope 21 ・ ・ Laser device 22 ・ ・ Enlarged optical system 23 ・ ・ Optical system electrical system conversion device 24 ・ ・ Image storage device 25 ・ ・ Scanning part 26 ・ ・ Half mirror 27 ・ ・ Nail replica 28 ・ ・ Pin Hall 29, moving part 30, focus movement memory 31, reference scale setting device 32, pitch conversion device 33, tone color generator 34, sound length generator 35, tempo generator

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-146412 (JP, A) JP-A-4-73052 (JP, A) (58) Fields investigated (Int.Cl. ⁶ , DB name) G01B 21/00-21/32 G01B 11/00-11/30 102 A61B 5/06-5/22

Claims (5)

(57) [Claims] 1. An unevenness data of a nail surface is obtained from a nail surface or a nail replica, the obtained unevenness data is converted into a signal having a multi-stage hierarchy, and the converted signal is subjected to waveform processing, A method for evaluating a nail surface morphology, comprising frequency-modulating a processed signal and outputting the modulated signal as sound. 2. A reading means (2) for obtaining unevenness data of a nail surface from a nail surface or a nail replica (1), and converting the unevenness data obtained by the reading means (2) into a signal having a multi-stage hierarchy. Converting means (4), a processing means (9) for subjecting the signal converted by the converting means (4) to waveform processing, and a modulation for frequency-modulating the signal waveform-processed by the processing means (9). A nail surface morphology evaluation device, comprising: means (13); and output means (16) for outputting a signal modulated by the modulation means (13) as sound. 3. A reading means (2) for obtaining unevenness data of a nail surface from a nail surface or a nail replica (1), and converting the unevenness data obtained by the reading means (2) into a signal having a multi-stage hierarchy. Conversion means (4) for converting the signal converted by the conversion means (4) into a pitch signal determined from the scale number and octave number of a desired scale; Modulating means (1) for frequency-modulating the pitch signal converted by the pitch converting means (32)
3) and an output device (16) for outputting a signal modulated by the modulation device (13) as a sound. 4. A reading device (2) comprising: a laser device (21) for irradiating the nail surface or the nail replica (1) with a laser beam; and a scanning unit (25) for scanning the laser beam in a predetermined direction. A detector (28) for receiving a laser beam reflected from the nail surface or the nail replica (1); and an output of the detector (28) at each point of the laser beam scanned by the scanning unit (25). Moving part (29) for moving the nail surface or the nail replica (1) so that the maximum value is obtained.
The nail surface morphology evaluation device according to claim 2 or 3, wherein the laser microscope (20) is configured to obtain unevenness data of the nail surface from position information of the moving unit (29). 5. A sound length generating means (34) for outputting a sound length signal and a tempo signal to said modulating means (13) with respect to the pitch signal converted by said pitch converting means (32).
The nail surface morphology evaluation device according to claim 3 or 4, further comprising a tempo generation means (35).