JP2011167450A - Hair growth control light irradiation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair growth control light irradiation device, capable of efficiently controlling the growth of new and existing body hair while restricting effects on the skin surface. <P>SOLUTION: The hair growth control light irradiation device 1 controls the growth of new and existing hair of a human beard 43, and irradiates hair growth control light 37 that is not a UV-ray toward a surrounding part 46 of the beard including the beard 43 and projected parts 44. Energy of the hair growth control light 37 is set at 0.1-10 J/cm<SP>2</SP>. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a hair suppression light irradiation apparatus. More specifically, the present invention relates to a hair suppression light irradiation device capable of effectively suppressing hair growth and growth of a human mustache.

  2. Description of the Related Art Conventionally, an apparatus for excising body hair (eg, beard) on the skin surface using laser light has been developed (see, for example, Patent Document 1).

  This ablation device includes a laser source that generates laser light, optical means that focuses the laser light, and a manipulator that changes the irradiation position of the laser light.

Special table 2007-501047 gazette

  By the way, the excision apparatus described in Patent Document 1 only excises the hair with a laser beam, and does not have the effect of suppressing hair growth and growth of the hair. Moreover, since the energy density of the laser beam to be used is large, there is a possibility that the skin surface is adversely affected (damaged).

  Then, an object of this invention is to provide the hair suppression light irradiation apparatus which can suppress the hair growth and growth of a body hair efficiently, suppressing the influence with respect to a skin surface.

In order to solve the above-mentioned problems, the present invention is a hair suppression light irradiating apparatus that suppresses hair growth and growth of a human mustache and irradiates the hair with a hair suppression light that is light other than ultraviolet rays. The energy of the hair suppression light is set to 0.1 to 10 J / cm ² .

According to the hair suppression light irradiation apparatus according to the present invention, hair growth and growth of mustaches can be effectively suppressed by using hair suppression light having an energy of 0.1 to 10 J / cm ² . Moreover, since ultraviolet rays that may adversely affect (damage) the human skin surface are not used, the influence on the skin can be suppressed. In addition, since the hair suppression light based on this invention has energy smaller than before, it can further suppress the bad influence which it has on the skin surface of a human body.

It is a schematic sectional drawing showing the inside of the hair-loss light irradiation device concerning a 1st embodiment of the present invention. It is a side view which shows the state which reflects hair suppression light by the polygon mirror of FIG. It is a schematic sectional drawing which shows the inside of the modification of the hair suppression light irradiation apparatus which concerns on 1st Embodiment of this invention. It is a side view which shows the state which is irradiating the hair surface of the human body with the hair-loss light irradiation apparatus of FIG. It is the schematic of the image which reflected the skin surface with the camera of FIG. The state which divided | segmented the image of FIG. 5 into several area | region is shown. It is a schematic sectional drawing which shows the inside of the hair suppression light irradiation apparatus which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the irradiation part of FIG. It is a front view which shows the mechanical shutter of FIG. 7, (a) shows the mechanical shutter of a closed state, (b) shows the mechanical shutter of an open state. It is a side view which shows the state which is irradiating the hair surface light of the human body by the hair light irradiation apparatus of FIG. It is the schematic of the image which reflected the skin surface with the camera of FIG. It is the schematic which shows the site | part of the skin surface which irradiates hair-loss light. It is a schematic sectional drawing which shows the inside of the hair suppression light irradiation apparatus which concerns on 3rd Embodiment of this invention. It is the schematic of the image which projected the skin surface with the camera of FIG. In this figure, (a) is a partial cross-sectional view of the hair-loss light irradiating device showing a state in which the split mirror is operating, and (b) is a schematic diagram showing a portion of the skin surface that irradiates the hair-loss light. FIG. It is a schematic sectional drawing which shows the inside of the hair suppression light irradiation apparatus which concerns on 4th Embodiment of this invention. It is a schematic sectional drawing which shows the inside of the hair suppression light irradiation apparatus which concerns on 5th Embodiment of this invention. It is a schematic sectional drawing which shows the inside of the hair suppression light irradiation apparatus which concerns on 6th Embodiment of this invention. It is a schematic sectional drawing which shows the inside of the hair suppression light irradiation apparatus which concerns on 6th Embodiment of this invention. It is a front view which shows the site | part of the face of the human body which irradiated the hair suppression light in Examples 1-3. It is a graph which shows the result of Example 1, and shows the relationship between the energy of the irradiated barium light and the number of the mustaches after irradiation. It is a graph which shows the result of Example 2, and shows the relationship between the wavelength range of a hair suppression light and the number reduction rate of a beard. It is a graph which shows the result of Example 3, and shows the relationship between the wavelength range of hair suppression light and the number increase rate of a growth suppression mustache. It is a graph which shows the ratio of the hair with a slow growth rate with the presence or absence of irradiation about the hair suppression light whose wavelength range is 400-700 nm. It is a graph which shows the ratio of the hair with a slow growth rate with the presence or absence of irradiation about the hair suppression light whose wavelength range is 700-1200 nm.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

[First embodiment]
First, the hair suppression light irradiation apparatus according to the first embodiment of the present invention will be described.

  FIG. 1 is a schematic cross-sectional view showing the inside of the hair suppression light irradiation apparatus according to the first embodiment of the present invention, and FIG. 2 is a side view showing a state in which the hair suppression light is reflected by the polygon mirror of FIG. 3 is a schematic cross-sectional view showing the inside of a modified example of the hair-loss light irradiating device according to the first embodiment of the present invention, and FIG. It is a side view which shows the state which is irradiating hair light. FIG. 5 is a schematic view of an image of the skin surface projected by the camera of FIG. 4, and FIG. 6 shows a state in which the image of FIG. 5 is divided into a plurality of regions.

  As shown in FIG. 1, the hair suppression light irradiating apparatus 1 according to the first embodiment of the present invention includes a camera 9, a light source 7, a polygon mirror group 11, and a lens 13 disposed inside a housing 3 that covers an outer surface. It has.

  The camera 9 is fixed to the bottom wall surface of the housing 3 and projects an image of the skin surface 39 through the lens 13. The light source 7 is installed on the side wall surface of the housing 3 and irradiates the hair suppression light 37 from the tip. As this light source 7, for example, a xenon lamp or the like can be suitably used. The polygon mirror group 11 is formed by laminating individual polygon mirrors 17 formed in a plate shape in the thickness direction, and each polygon mirror 17 is pivotable about a rotation axis. It is supported. Specifically, each polygon mirror 17 is formed as a regular hexagonal plate-like member in side view from side surfaces 21 and 21 formed on both sides and a reflection surface 19 formed along the outer periphery. Yes. Further, as shown in FIG. 2, the hair suppression light 37 emitted from the light source 7 strikes the reflection surface 19 of the polygon mirror 17 and is reflected, but the polygon mirror 17 at the position of the solid line rotates in the direction of the arrow to When coming to the position of the chain line, the hair suppression light 37 is also reflected in the direction of the two-dot chain line.

  An irradiation unit 5 is provided at the end of the housing 3 at a position facing the camera 9. The irradiation unit 5 is configured such that the hair suppression light 37 reflected by the polygon mirror group 11 is irradiated from the irradiation port 23 through the lens 13.

  In addition, as shown in FIG. 3, the aspect which changes the arrangement | positioning position of the camera 9 is also possible. Rails 34, 34 that bridge the side wall surface of the housing 3 are provided, and the camera 9 is attached to the rails 34, 34 so as to be able to run. As a result, when the image of the skin surface 39 is projected, the camera 9 is arranged at a position facing the lens 13, and when irradiating the hair suppression light 37, it slides upward or downward so as not to block the hair suppression light 37. To.

  Next, the operation procedure of the hair-loss light irradiating device according to the first embodiment will be described with reference to FIGS.

  First, an image of the skin surface 39 as shown in FIG. In FIG. 5, moles 41, beards 43, etc. are scattered on the skin surface 39. Here, as shown in FIGS. 5 and 6, the skin portion in the vicinity of the root of the beard 43 is a slightly raised elliptical convex portion 44.

  Next, in the image processing unit, as shown in FIG. 6, the image is divided into the divided image 45 obtained by dividing the image by the thickness of the polygon mirror 17. In the divided image, the beard peripheral portion 46 including the beard 43 and the convex portion 44 is formed. The irradiation area 47 is determined by selectively capturing. Therefore, only the beard 43 excluding the lips can be selected. Then, the hair suppression light 37 is irradiated from the light source 7 toward the irradiation region 47. As described above, the light source 7 can irradiate the hair suppression light 37 only on the desired irradiation region 47 when the polygon mirror 17 is turned on and off repeatedly and reaches a predetermined angle.

  Here, when the irradiation spot is the beard peripheral portion 46 on the skin surface 39, the hair suppression light 37 is irradiated. However, in the case of the mole 41 or the skin, the irradiation from the light source 7 is controlled so as not to irradiate. When the signal from the image processing unit is transmitted to the light source 7 and the polygon mirror 17 is rotated by a predetermined angle, irradiation from the light source 7 is performed or stopped. In FIG. 4, since the irradiation spot is located at the site of the beard 43, the hair suppression light 37 emitted from the light source 7 is reflected by the reflecting surface of the polygon mirror 17, and then collected by the lens 13, and then on the beard peripheral portion 46. Irradiated.

Next, the hair suppression light 37 according to the present invention will be described. The hair suppression light 37 is light other than ultraviolet light, and has an action of suppressing hair growth and growth of the beard 43 of the human body. Moreover, although energy is 0.1-10 J / cm < ² >, Preferably, it is 0.1-1.0 J / cm < ² >, More preferably, it is 0.1-0.4 J / cm < ² >.

Here, it is not preferable to use light containing ultraviolet rays as the hair suppression light 37 because it may adversely affect (damage) the skin surface 39 of the human body. Therefore, the hair suppression light 37 according to the present invention is light excluding ultraviolet rays. Moreover, when energy is less than 0.1 J / cm < ² >, as shown in Examples 1-3 mentioned later, the hair growth inhibitory effect and the growth inhibitory effect of the beard 43 become small, and it is not preferable. On the other hand, if the energy is larger than 10 J / cm ² , there is a possibility that the human skin surface 39 is adversely affected (damaged). In addition, although it is clear that the hair growth inhibitory effect and growth inhibitory effect of the beard 43 become high, so that energy is high, it is also necessary to consider the bad influence of the skin surface 39. Therefore, the energy of the hair suppression light 37 according to the present invention is at least 0.1 to 10 J / cm ² .

  Furthermore, the wavelength of the hair suppression light 37 is preferably 400 to 1200 nm. This is because, as shown in Examples 1 to 3 to be described later, when the skin surface 39 is irradiated with the hair suppression light 37 having a wavelength of 400 to 1200 nm, the hair growth suppressing effect and the growth suppressing effect of the beard 43 are enhanced. The wavelength of the hair suppression light 37 is more preferably 400 to 700 nm.

  Below, the effect by this embodiment is demonstrated.

(1) The hair-raising light irradiation device 1 according to the present embodiment suppresses the hair growth and growth of the beard 43 of the human body, and includes the hair-bearing light 37 that is light other than ultraviolet rays, and the hair-bearing light 37. It is the hair-loss light irradiation apparatus 1 which irradiates toward the beard peripheral part 46, Comprising: The energy of the said hair-loss light 37 is set to 0.1-10 J / cm < ² >.

When the energy is less than 0.1 J / cm ² , the hair growth suppressing effect and the growth suppressing effect of the whiskers 43 become small, which is not preferable. On the other hand, when the energy is larger than 10 J / cm ² , there is a possibility that the skin surface 39 of the human body is adversely affected (damaged). Thus, the hair growth and growth of the beard 43 can be effectively suppressed by using the hair suppression light 37 having an energy of 0.1 to 10 J / cm ² . Further, since ultraviolet rays that may adversely affect (damage) the skin surface 39 of the human body are not used, the influence on the skin can be suppressed.

  In addition, since the hair suppression light 37 which concerns on this embodiment has energy smaller than before, the bad influence which it has on the skin surface 39 of a human body can be suppressed.

(2) Since the wavelength of the hair suppression light 37 is 400 to 1200 nm, hair growth and growth of the beard 43 can be more effectively suppressed.

(3) An image of the skin surface 39 is projected using the camera 9, and an image processing unit that selects the beard 43 from the image, and the hair suppression light 37 is directed to the beard 43 based on the image data of the image processing unit. And an irradiation unit 5 for selectively irradiating. Therefore, it is possible to reduce the irradiation amount of the hair suppression light 37 to the skin portion (in particular, the lips and the mole 41) without the beard 43, and to reduce the influence on the skin.

(4) The image processing unit selects the beard peripheral portion 46 including the beard 43 and the convex portion 44 of the skin portion excluding the lips. Thus, by preventing irradiation of the lip portion that is particularly susceptible to the effect of the hair suppression light 37 in the skin surface 39, the influence on the skin can be further reduced.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.

  FIG. 7 is a schematic cross-sectional view showing the inside of the hair suppression light irradiation apparatus according to the second embodiment of the present invention, and FIG. 8 is a perspective view showing the irradiation unit of FIG. FIG. 9 is a front view showing the mechanical shutter of FIG. 7, wherein (a) shows the closed mechanical shutter and (b) shows the opened mechanical shutter. FIG. 10 is a side view showing a state in which the hair surface of the human body is irradiated with the hair suppression light by the hair suppression light irradiation device of FIG. 7, and FIG. 11 is a schematic view of the image of the skin surface projected by the camera of FIG. 12 is a schematic view showing a portion of the skin surface that irradiates with hair-loss light. In addition, the same code | symbol is attached | subjected to the site | part same as 1st Embodiment mentioned above, and the description is abbreviate | omitted.

  As shown in FIG. 7, the hair suppression light irradiation apparatus according to the second embodiment of the present invention includes a camera 9, a light source 7, a mirror 53, a mechanical shutter 59, and a lens 57 disposed inside a casing that covers the outer surface. It has.

  The housing 3, the camera 9, and the light source 7 have the same structure as that of the hair suppression light irradiation apparatus according to the first embodiment shown in FIG. Below the light source 7, a mirror 53 is disposed along an oblique direction. The mirror 53 reflects the hair suppression light 37 emitted from the light source 7 toward the irradiation unit 5.

  In addition, as shown in FIG. 8, a plurality of circular irradiation holes 61 are formed through the irradiation unit 5 along the longitudinal direction of the housing 3. 59 and a lens 57 are provided. In this mechanical shutter 59, a plurality (six in this embodiment) of leaf-shaped sectors 63 are arranged along the circumferential direction, and these sectors 63 can be opened and closed. FIG. 9A shows the mechanical shutter 59 in a closed state, and FIG. 9B shows the mechanical shutter 59 in an open state. When the mechanical shutter 59 is closed, the hair suppression light 37 from the light source 7 is shielded by the mechanical shutter 59, and when the mechanical shutter 59 is opened, the hair suppression light 37 is sent to the lens 57 through the opening 65. Irradiation from the irradiation hole 61. The light source 7 may continuously generate hair suppression light 37 or pulse light.

  Next, using FIG. 10 to FIG. 12, an operating procedure of the hair-lashing light irradiation apparatus according to the second embodiment will be described.

  First, similarly to the first embodiment, after the image of the skin surface 39 is projected using the camera 9, the image processing unit selectively captures the beard peripheral portion 46 including the beard 43 and the convex portion 44. The irradiation area 73 is determined. Then, the hair suppression light 37 is irradiated from the light source 7 toward the irradiation region 73.

  Here, in the irradiation hole 61 corresponding to the beard 43 on the skin surface 39, the irradiation spot 61 is irradiated toward the beard peripheral portion 46 after the mechanical shutter 59 is opened and the hair suppression light 37 is collected through the lens 57. Is done. On the other hand, in the irradiation hole 61 corresponding to the mole 41 or the skin, the mechanical shutter 59 is closed and the hair suppression light 37 is blocked.

  Below, the effect by this embodiment is demonstrated.

  In this embodiment, since the hair suppression light 37 is irradiated by opening and closing the mechanical shutter 59, the hair suppression light 37 can be reliably irradiated to a desired part.

[Third embodiment]
Next, a third embodiment of the present invention will be described.

  FIG. 13 is a schematic cross-sectional view showing the inside of a hair suppression light irradiation apparatus according to the third embodiment of the present invention, FIG. 14 is a schematic view of an image showing the skin surface with the camera of FIG. (A) is a cross-sectional view of a part of the hair suppression light irradiation device showing a state in which the split mirror is operating, and (b) is a schematic view showing a portion of the skin surface that emits hair suppression light. In addition, the same code | symbol is attached | subjected to the same site | part as 1st and 2nd embodiment mentioned above, and the description is abbreviate | omitted.

  In the hair suppression light irradiation device 81 according to the present embodiment, a split mirror 83 is employed. The split mirror 83 is composed of a plurality of small rectangular pieces 85 and 86, and each of the split bodies 85 and 86 is pivotally supported around a rotation axis. And the division bodies 85 and 86 which irradiate toward the irradiation area | region in the skin surface 39 are rotated to a predetermined angle, and the division bodies 85 and 86 are made not to rotate with respect to the area | regions which are not irradiated, such as the mole 41. .

  Next, an operation procedure of the hair-loss light irradiating device according to the third embodiment will be described with reference to FIGS. 14 to 15.

  First, as in the first embodiment, as shown in FIG. 14, an image of the skin surface 39 is projected using the camera 9, and then the beard peripheral portion including the beard 43 and the convex portion 44 in the image processing unit. 46 is selectively captured to determine an irradiation area. And the hair suppression light 37 is irradiated from the light source 7 toward this irradiation area | region. That is, also in the present embodiment, as indicated by the two-dot chain line in FIG. 15B, the irradiation region 88 is the beard peripheral portion 46 including the beard 43 and the convex portion 44.

  Here, as shown in FIGS. 15 (a) and 15 (b), the divided body 85 corresponding to the beard 43 is rotated to a predetermined angle to reflect the hair suppression light 37 from the light source 7 to the beard 43. Irradiate toward. On the other hand, the divided body 86 corresponding to the mole 41 or the like other than the beard 43 is held in a position without being rotated.

  Below, the effect by this embodiment is demonstrated.

  In this embodiment, since the hair-loss light 37 is irradiated using the split mirror 83, the hair-loss light 37 can be reliably irradiated to a desired part.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described.

  FIG. 16 is a schematic cross-sectional view showing the inside of the hair suppression light irradiation apparatus according to the fourth embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same site | part as the 1st-3rd embodiment mentioned above, and the description is abbreviate | omitted.

  In this hair suppression light irradiating device 91, a cutting portion 93 of the beard 43 is provided at the distal end portion of the beard shaving main body 95, and the irradiation portion 97 and the camera 9 are disposed on the side of the beard shaving main body 95. Specifically, a pair of cutting portions 93 for cutting the beard 43 on the skin surface 39 are disposed on both the left and right sides of the distal end portion of the beard 43 shaving body 95. Further, an irradiation part 97 having a light source 7 is disposed on the side of the shaving body 95 (on the side of the cutting part), and the hair suppression light is directed toward the skin surface 39 immediately before or immediately after the shaving 43 is shaved. 37 is irradiated. Further, a camera 9 is attached to the side of the irradiation unit 97, and an image of the skin surface 39 can be projected with the camera 9.

  Next, using FIG. 16, an operation procedure of the hair suppression light irradiation apparatus according to the fourth embodiment will be described.

  First, similarly to the first embodiment, after an image of the skin surface 39 is projected using the camera 9, the image processing unit selectively captures the beard peripheral portion 46 including the beard 43 and the convex portion 44, and performs irradiation. Determine the area. And the hair suppression light 37 is irradiated from the light source 7 toward this irradiation area | region.

  Here, since the beard 43 is cut by the cutting portion 93, the hair suppression light 37 is irradiated toward the remaining portion of the beard 43 after being cut or the beard peripheral portion 46 to be cut.

  Below, the effect by this embodiment is demonstrated.

  In this embodiment, the cutting part 93 which cuts the beard 43 is further provided, and the irradiation part 97 and the camera 9 are disposed on the side of the cutting part 93.

  Therefore, since the whisker 43 can be cut by the cutting unit 93 while irradiating the hair suppression light 37, the processing time of the irradiation of the hair suppression light 37 and the cutting of the hair 43 can be shortened. Further, when the hair suppression light 37 is irradiated after the hair 43 is cut, the hair suppression light 37 is not shielded by the hair shadow 43, so that the hair root 37 can be efficiently applied to the hair root.

  Moreover, since the irradiation part 97 is provided in the right-and-left both sides of the shaving main body 95, even if the shaving main body 95 is moved to any of the left-right direction in FIG. 16, the hair-retaining light 37 can be irradiated before and after shaving. .

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described.

  FIG. 17 is a schematic cross-sectional view showing the inside of the hair suppression light irradiation apparatus according to the fifth embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same site | part as the 1st-4th embodiment mentioned above, and the description is abbreviate | omitted.

  In the hair suppression light irradiation apparatus 101 according to the present embodiment, a pair of cutting portions 93 and 93 are disposed on both sides of the distal end portion of the shaving body 103, and the irradiation portion is interposed between the cutting portions 93 and 93. 105 and 105 are arranged in a pair.

  Next, using FIG. 17, an operation procedure of the hair-loss light irradiating device according to the fifth embodiment will be described.

  First, as in the first embodiment, after the image of the skin surface 39 is projected using the camera 9 (not shown), the beard peripheral portion 46 including the beard 43 and the convex portion 44 is selectively selected in the image processing unit. Determine the irradiation area. And the hair suppression light 37 is irradiated from the light source 7 toward this irradiation area | region.

  Here, since the beard 43 is cut by the cutting portion 93, the hair suppression light 37 is irradiated toward the remaining portion of the beard 43 after being cut, or toward the beard 43 and the convex portion 44 to be cut.

  Below, the effect by this embodiment is demonstrated.

  In the present embodiment, a cutting portion 93 for cutting the beard 43 is further provided, and the irradiation unit 105 is disposed inside the cutting portion 93.

  Therefore, since the whisker 43 can be cut by the cutting unit 93 while irradiating the hair suppression light 37, the processing time for the irradiation of the hair suppression light 37 and the hair cutting 43 can be shortened. Further, when the hair suppression light 37 is irradiated after the hair 43 is cut, the hair suppression light 37 can be efficiently irradiated because the hair suppression light 37 is not shielded by the hair 43.

  Moreover, since the irradiation part 105 is provided in the right-and-left both sides of the shaving main body 103, even if the shaving main body 103 is moved to any of the left-right direction in FIG. 17, the barrage light 37 can be irradiated before and after shaving. .

[Sixth Embodiment]
Next, a sixth embodiment of the present invention will be described.

  FIG. 18 is a schematic cross-sectional view showing the inside of the hair suppression light irradiation apparatus according to the sixth embodiment of the present invention, and FIG. 19 is a schematic view showing the inside of the hair suppression light irradiation apparatus according to the sixth embodiment of the present invention. FIG.

  As shown in FIG. 18, an outer blade 120 curved in a substantially U shape in a side view and an outer blade 120 of the shaving main body 113 constituting the hair suppression light irradiation device 111 according to the present embodiment. An inner blade 119 disposed on the inner side is disposed. The outer blade 120 is formed in a mesh shape, and a gap 121 is formed between the blades. Further, the inner blade 119 has a shape in which the outer peripheral edge is along the inner surface of the outer blade 120 in a side view as shown in FIG. 18, and is arranged in a plurality at predetermined intervals in the left-right direction as shown in FIG. ing. Further, the inner blade 119 is connected to a drive unit (not shown) via the inner blade support portion 117, and is reciprocated along the arrow direction in FIG. 43 is cut.

  Further, a pair of light sources 7 are arranged above the inner blade 119 inside the shaving body 113 (housing). The hair suppression light 37 emitted from the light source 7 passes through the gap 121 between the inner blade 119 and the outer blade 120 and is irradiated toward the beard peripheral portion 46 of the skin surface 39.

  Below, the effect by this embodiment is demonstrated.

  In the present embodiment, the outer periphery of the hair suppression light irradiation device 111 is covered with a shaving body 113 that is a housing, and the outer blade 120 and the inner blade 119 that are cutting portions for cutting the beard 43 are formed at the front end of the housing. The irradiation unit 115 and a camera (not shown) are arranged inside the housing. Therefore, since the irradiation of the hair suppression light 37 and the cutting of the beard 43 can be performed simultaneously, the processing time can be shortened.

  Next, the present invention will be further clarified through examples.

[Example 1]
First, the relationship between the energy of the hair suppression light and the hair growth suppressing effect of the beard was examined.

  As shown in FIG. 20, the hair on one side of the face was irradiated with the hair suppression light according to this embodiment. Specifically, irradiation was performed at four locations, the lower nose (A), jaw (B), cheek (C), and lower jaw (D). Irradiation time was as follows. The site of A to D was irradiated every day by irradiating a 30 mm × 20 mm site with one shot for 0.2 seconds and gradually shifting the irradiated site. The other half of the face was not irradiated. This hair-removal light has a wavelength range of 700 to 1200 nm, and as shown in FIG. 21, the hair-removal light having different energy was continuously irradiated for 4 weeks. In addition, the ratio (%) of the number of the mustaches 43 is measured by the total value in the above A to D as a relative value when the initial number is 100% of the standard, and the result shown in the graph of FIG. 21 is obtained. It was.

As shown in FIG. 21, when the energy was 0.01 J / cm ² and 0.08 J / cm ² , the number of 43 whiskers after 4 weeks was 98%, which was hardly decreased. On the other hand, when the energy is 0.1 J / cm ² , the number of 43 beards after 4 weeks is 86%, and when 0.14 J / cm ² , the number is 77%. It was done. Although not shown in FIG. 21, it is clear that the energy of 0.14 J / cm ² or more exerts a greater hair suppression effect of the beard 43.

[Example 2]
Next, the hair growth suppression effect of the hair of the hair of the present invention was verified by examining the relationship between the wavelength region of the hair and the reduction rate (%) of the number of hairs.

  Facial parts A to D similar to those in the first embodiment are irradiated with hair suppression light having a wavelength range of 400 to 700 nm on one half of the face, and a wavelength range of 700 is applied to the other half of the face. Irradiated with hair of ~ 1200 nm. The irradiation period was continued for 4 to 6 weeks, and verification was performed on three subjects.

  Here, a method for calculating the reduction rate of the number of beards will be briefly described. Y (T) is the reduction rate of the number of mustaches by irradiating the hair, and Y (F) is the reduction rate of the number of mustaches on the irradiated side. Assuming Y (C), Y (T) = Y (F) −Y (C). On the other hand, if the number of beards before irradiation in the irradiated region is N (0) and the number of beards disappeared after the irradiation period in the irradiated region is N (A), Y (F) = N (A) / N (0). Y (C) can be obtained in the same manner as Y (F). The average value was calculated by measuring the length before and after irradiation of 65 to 100 mustaches in three subjects. The result is shown in the graph of FIG.

  As shown in FIG. 22, when the hairband light having a wavelength range of 400 to 700 nm is irradiated, the reduction rate of the number of whiskers is 23%, and when the hairband light having a wavelength range of 700 to 1200 nm is irradiated. The reduction rate of the number of beards was 8%. Thus, it has been found that the hair growth suppressing effect is higher in the wavelength range of 400 to 700 nm than in the case of 700 to 1200 nm, and the hair growth suppressing effect is higher than that in the case of no irradiation (that is, 0 nm). There was found.

[Example 3]
Next, the effect of suppressing the growth of beard by the hair suppression light according to the present invention was verified by examining the relationship between the wavelength range of the hair suppression light and the rate of increase in the number of growth suppression hairs (%). The rate of increase in the number of growth-suppressed mustaches means a delay rate of the growth rate of beards.

  Facial parts A to D similar to those in Examples 1 and 2 are continuously irradiated with half-hair light having a wavelength range of 400 to 700 nm on one half of the face every day, and the other half of the face is irradiated. Irradiates hair-removal light having a wavelength range of 700 to 1200 nm every day. The irradiation period was continued for 4 to 6 weeks, and verification was performed on three subjects.

  For 65 to 100 mustaches in three subjects, the length before and after irradiation was measured, and the average value was calculated by calculating the proportion of mustaches with which the growth rate of beard growth was slow.

  As shown in FIG. 24, in the wavelength range of 400 to 700 nm, the proportion of hair with a slow growth rate was 62.9% when irradiated, and was 54.7% when not irradiated. . Therefore, the difference of 8.2% (62.9% -54.7% = 8.2%) is the rate of increase in the number of growth-suppressed mustaches shown in FIG.

  On the other hand, as shown in FIG. 25, in the wavelength range of 700 to 1200 nm, the proportion of hair with a slow growth rate is 50.5% when irradiated, and 46.4% when not irradiated. there were. Therefore, the difference of 4.1% (50.5% -46.4% = 4.1%) is the rate of increase in the number of growth-suppressed mustaches shown in FIG.

  Thus, it has been found that the effect of suppressing the growth of whiskers is higher in the wavelength range of 400 to 700 nm than in the case of 700 to 1200 nm, and the effect of suppressing the growth is higher than the case where no irradiation is performed (that is, 0 nm). There was found.

1,31,51,71,8191,101,111 Hair-reducing light irradiating device 5, 97, 105 Irradiation unit 7, 115 Light source 9, 35 Camera 37 Hair-removing light 39 Skin surface 43 Beard 93 Cutting unit 113 Shaving body ( Housing)

Claims (6)

While suppressing hair growth and growth of the beard of the human body, it is a hair suppression light irradiation device that irradiates the hair with a hair suppression light other than ultraviolet rays,
The hair-loss light irradiating apparatus characterized in that the energy of the hair-loss light is set to 0.1 to 10 J / cm ² .   2. The hair-loss light irradiating apparatus according to claim 1, wherein the wavelength of the hair-loss light is 400 to 1200 nm.   An image processing unit that projects an image of the skin surface using a camera and selects a whiskers from the image, and an irradiation unit that selectively irradiates the hair with shading light based on the image data of the image processing unit; The hair-irradiating device according to claim 1 or 2, characterized in that   The said image processing part selects the whiskers of the skin part except a lip, The hair suppression light irradiation apparatus of Claim 3 characterized by the above-mentioned.   The hair suppression light irradiation apparatus according to claim 3 or 4, further comprising a cutting unit for cutting the beard, wherein the irradiation unit and the camera are arranged on a side of the cutting unit.   The outer periphery of the hair-loss light irradiating device is covered with a casing, a cutting section for cutting the whiskers is provided at the tip of the casing, and the irradiation section and the camera are arranged inside the casing. The hair-irradiating device according to claim 3 or 4.

Images