WO2015033513A1 - 体毛用光照射装置 - Google Patents
体毛用光照射装置 Download PDFInfo
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- WO2015033513A1 WO2015033513A1 PCT/JP2014/004002 JP2014004002W WO2015033513A1 WO 2015033513 A1 WO2015033513 A1 WO 2015033513A1 JP 2014004002 W JP2014004002 W JP 2014004002W WO 2015033513 A1 WO2015033513 A1 WO 2015033513A1
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- light
- output
- peak
- spectrum
- peak region
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- 210000004209 hair Anatomy 0.000 title claims abstract description 75
- 238000001228 spectrum Methods 0.000 claims description 115
- 238000010521 absorption reaction Methods 0.000 claims description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000000862 absorption spectrum Methods 0.000 claims description 30
- 238000002835 absorbance Methods 0.000 claims description 26
- 230000001747 exhibiting effect Effects 0.000 claims 2
- 230000000052 comparative effect Effects 0.000 description 86
- 230000003779 hair growth Effects 0.000 description 26
- 230000007423 decrease Effects 0.000 description 21
- 230000009471 action Effects 0.000 description 14
- 230000003595 spectral effect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 230000001678 irradiating effect Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 9
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- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000031700 light absorption Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
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Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0616—Skin treatment other than tanning
- A61N5/0617—Hair treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0626—Monitoring, verifying, controlling systems and methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0659—Radiation therapy using light characterised by the wavelength of light used infrared
Definitions
- the present invention relates to a light irradiation apparatus for body hair.
- the hair irradiation apparatus disclosed in Patent Document 1 has an LED lamp.
- the light emitted by this LED lamp has a peak at the specific absorption wavelength of water in the near infrared region.
- Patent document 1 is disclosing that the hair-growth effect
- the inventor of the present application has found that the following problems exist in the light irradiation apparatus for body hair.
- the said hair irradiation device for body hair may become difficult to promote a hair-growth effect
- An object of the present invention is to provide a light irradiation apparatus for body hair in which the amount of light absorbed by a living body is unlikely to decrease even when the light irradiation time increases.
- the light irradiation device for body hair includes a light source unit that outputs light, and a control unit that is connected to the light source unit and controls the output of the light source unit.
- the control unit has a main peak region in which the output light of the light irradiation device for body hair through the output of the light source unit includes an output light peak indicating a maximum intensity within a wavelength range of 1350 nm to 1550 nm, and the output light
- the integrated value of the peak short wavelength component that is the main peak region component on the short wavelength side of the peak is larger than the integrated value of the peak long wavelength component that is the main peak region component on the long wavelength side of the output light peak.
- the output of the light source unit is controlled so that
- a decrease in the amount of light absorbed by the living body is suppressed even if the light irradiation time is increased.
- the block diagram of the light irradiation apparatus for body hair of one Embodiment. Sectional drawing of the light source part unit of FIG. (A) The graph which shows the spectrum of the light of one Embodiment. (B) The graph which shows the spectrum of the light of one Embodiment when the light source part temperature rises. (C) The graph which shows the spectrum of the light of one Embodiment when the light source part temperature rises further. (A) The graph which shows the spectrum of the light of a comparative example. (B) The graph which shows the spectrum of the light of the comparative example in case the light source part temperature rises. (C) The graph which shows the spectrum of the light of the comparative example in case the light source part temperature rises further.
- the light irradiation device for body hair includes a light source unit that outputs light, and a control unit that is connected to the light source unit and controls the output of the light source unit.
- the control unit has a main peak region in which the output light of the light irradiation device for body hair through the output of the light source unit includes an output light peak indicating a maximum intensity within a wavelength range of 1350 nm to 1550 nm, and the output
- the integrated value of the peak short wavelength component which is the main peak region component on the shorter wavelength side than the light peak, is larger than the integrated value of the peak long wavelength component, which is the main peak region component on the longer wavelength side than the output light peak. In this manner, the output of the light source unit is controlled.
- the short wavelength side maximum gradient that is the maximum gradient of the main peak region on the short wavelength side from the output light peak is the maximum gradient of the main peak region on the long wavelength side from the output light peak. It is preferable to be smaller than the long wavelength side maximum gradient.
- the absorption spectrum of water has an absorption peak region that includes an absorption peak indicating the maximum absorbance within a wavelength range of 1440 nm to 1460 nm.
- the control unit controls the spectrum of the output light with respect to the absorption spectrum of the water, whereby the long-wavelength-side maximum gradient of the main peak region is changed to the absorption peak region on the longer wavelength side than the absorption peak. It is preferable to make it larger than the long-wavelength side absorbance gradient, which is the maximum gradient.
- the absorption spectrum of water has an absorption peak region that includes an absorption peak indicating the maximum absorbance within a wavelength range of 1440 nm to 1460 nm.
- the control unit controls the spectrum of the output light with respect to the absorption spectrum of the water, whereby the maximum gradient on the short wavelength side of the main peak region is changed to the absorption peak region on the shorter wavelength side than the absorption peak. It is preferable to make it smaller than the short-wavelength side absorbance gradient which is the maximum gradient.
- the output light does not have a significant peak region other than the main peak region in a wavelength range of 1200 nm to 1600 nm.
- the main peak region is a short wavelength side base point that is a base point of the main peak region existing on the short wavelength side of the output light peak, and the long wavelength side of the output light peak.
- a long-wavelength side base point that is a base point of the main peak region, wherein a slope of a line between two points connecting the long-wavelength side base point and the output light peak is the short-wavelength side base point and the output light peak Is preferably larger than the gradient of the line between two points connecting the two.
- FIG. 1 shows a block diagram of an embodiment of a light irradiation apparatus 1 for body hair.
- the body hair light irradiating device 1 contributes to promoting the hair growth action of the living body by irradiating the living body with light.
- Hair growth refers to a phenomenon that promotes the regeneration and growth of body hair in a living body.
- the hair growth action indicates the action of a living body that promotes hair growth. As the hair growth action is promoted by the light irradiation, the hair growth is facilitated.
- the body hair light irradiation apparatus 1 includes a main unit 10 and a light source unit 70.
- the main unit 10 has a plurality of components.
- the plurality of components of the main unit 10 include a main body housing 20, a power supply unit 30, an operation unit 40, a control unit 50, and a pulse generation unit 60.
- the light source unit 70 has a plurality of components.
- the plurality of components of the light source unit 70 include a light source housing 71, a light distribution lens 72, and a light source unit 80.
- the body hair light irradiation device 1 has a plurality of electric blocks.
- the electric block is driven based on electric power supplied from the power supply unit 30.
- the operation unit 40, the control unit 50, the pulse generation unit 60, and the light source unit 70 correspond to an electric block.
- the body housing 20 is formed of a resin material as an example.
- the main body housing 20 has a hand-held form as an example.
- the main body housing 20 has an internal space for accommodating the components of the main body unit 10.
- the power supply unit 30 is disposed inside the main body housing 20.
- the power supply unit 30 is attached to the main body housing 20.
- the power supply unit 30 is electrically connected to each of the operation unit 40, the control unit 50, the pulse generation unit 60, and the light source unit 70.
- the power supply unit 30 supplies power of the primary battery or the secondary battery to each electric block.
- the operation unit 40 is formed on the main body housing 20.
- the operation unit 40 has, for example, a button type form.
- the operation unit 40 includes a power supply operation unit 41, an output operation unit 42, an irradiation time setting unit 43, and a frequency setting unit 44.
- the power supply operation unit 41 is electrically connected to the power supply unit 30.
- the operation position of the power supply operation unit 41 can be changed by being operated by the operator.
- the power supply unit 30 supplies power to each electric block when the operation position of the power supply operation unit 41 is the on position.
- the power supply unit 30 does not supply power to each electric block when the operation position of the power supply operation unit 41 is the off position.
- the output operation unit 42 is electrically connected to the control unit 50.
- the output operation unit 42 outputs an operation signal ST to the control unit 50 every time it is operated by the operator.
- the operation signal ST includes information indicating that the output operation unit 42 has been operated.
- the irradiation time setting unit 43 is electrically connected to the control unit 50.
- the irradiation time setting unit 43 outputs a time setting signal SM to the control unit 50 every time it is operated by the operator.
- the time setting signal SM includes information for designating a specified time, which is a time for the light source unit 80 to output light.
- the content of the time setting signal SM changes according to the number of operations of the irradiation time setting unit 43. For example, the time setting signal SM designates a specified time of 5 minutes, 10 minutes, and 20 minutes.
- the frequency setting unit 44 is electrically connected to the control unit 50.
- the frequency setting unit 44 outputs a change request signal SC to the control unit 50 every time it is operated by the operator.
- the change request signal SC includes information for designating a frequency at which the light source unit 80 outputs light (hereinafter, “output frequency TL”).
- the content of the change request signal SC changes according to the number of operations of the frequency setting unit 44.
- the change request signal SC specifies an output frequency TL of 0 Hz, 200 Hz, 500 Hz, or 1000 Hz.
- the output frequency TL is 0 Hz
- the light source unit 80 is driven in a continuous irradiation form that is a form in which light is continuously emitted.
- the light source housing 71 is formed of a resin material as an example.
- the light source housing 71 can be coupled to and separated from the main body housing 20.
- the light source unit housing 71 has an internal space for housing the components of the light source unit 70.
- the light distribution lens 72 is made of polymethyl methacrylate resin as an example. As an example, the light distribution lens 72 has a trapezoidal cone shape. The light distribution lens 72 is attached to the opening of the light source unit housing 71.
- the light source unit 80 is disposed inside the light source unit housing 71.
- the light source unit 80 is attached to the light source unit housing 71.
- the light source unit 80 is electrically connected to the control unit 50.
- the light source unit 80 outputs light based on the output execution signal SA received from the control unit 50.
- the light source unit 80 stops the light output based on the output stop signal SB received from the control unit 50.
- the light emitted from the light source unit 80 is output to the outside of the body hair light irradiation device 1 through the light distribution lens 72.
- Light output to the outside of the body hair light irradiation device 1 (hereinafter, “output light”) is irradiated to the living body.
- the pulse generator 60 is disposed inside the main body housing 20.
- the pulse generator 60 is electrically connected to the controller 50.
- the pulse generation unit 60 performs pulse modulation on the output execution signal SA input to the light source unit 80 based on the output change signal SD received from the control unit 50.
- the frequency of light output from the light source unit 80 is changed by pulse-modulating the output execution signal SA.
- the control unit 50 is disposed inside the main body housing 20.
- the control unit 50 controls the operation of the light source unit 70 based on the operation signal ST, the time setting signal SM, and the change request signal SC.
- the control unit 50 outputs the output execution signal SA or the output stop signal SB to the light source unit 80 based on the reception of the operation signal ST.
- the control unit 50 alternately outputs the output execution signal SA and the output stop signal SB.
- the output execution signal SA includes information for causing the light source unit 80 to output light.
- the output stop signal SB includes information for stopping the light output from the light source unit 80.
- the control unit 50 causes the light source unit 80 to start outputting light, and then counts the time that the light source unit 80 emits light.
- the control unit 50 outputs an output stop signal SB to the light source unit 80 when the counted time reaches a specified time set based on the time setting signal SM.
- the control unit 50 outputs the output change signal SD to the pulse generation unit 60 based on the reception of the change request signal SC.
- the output change signal SD includes pulse modulation information corresponding to the information of the output frequency TL included in the change request signal SC.
- the output execution signal SA is pulse-modulated by this pulse modulation information, and the frequency of the light output from the light source unit 80 is changed.
- the light source unit 80 outputs light based on the command signals (the output execution signal SA, the output stop signal SB, and the output change signal SD) of the control unit 50.
- FIG. 2 is a cross-sectional view illustrating an example of the light source unit 70.
- the light source unit 70 includes a printed circuit board 73, a conductive pattern 74, a resist 75, and a conductive component 76 in addition to the light source unit housing 71, the light distribution lens 72, and the light source unit 80.
- the printed circuit board 73 is disposed inside the light source unit housing 71.
- the printed circuit board 73 is attached to the light source unit housing 71.
- the printed circuit board 73 is made of a resin in which paper is impregnated with phenol.
- the conductive pattern 74 is formed on the printed circuit board 73.
- the resist 75 is formed on the conductive pattern 74.
- the resist 75 exposes a part of the conductive pattern 74.
- the conductive component 76 has, for example, a wire form.
- the conductive component 76 is connected to the conductive pattern 74.
- the light source unit 80 has a form of an LED lamp as an example.
- the light source unit 80 has a plurality of components.
- the plurality of components of the light source unit 80 include an LED chip 81, a reflector 82, and a sealing material 83.
- the LED chip 81 has a surface mount type configuration.
- the LED chip 81 is mounted on the printed board 73.
- the LED chip 81 is connected to the pattern 74 by a conductive component 76.
- the LED chip 81 is covered with a sealing material 83.
- the reflector 82 is disposed on the resist 75.
- the reflector 82 is attached to the resist 75.
- the reflector 82 is formed of a metal material, a resin material, or a material having a high reflectance.
- An example of a material with high reflectivity is ceramic.
- the reflector 82 reflects the light emitted from the LED chip 81 toward the light distribution lens 72.
- the sealing material 83 is filled in a space defined by the reflecting surface of the reflector 82.
- the sealing material 83 is formed of a silicon resin, an epoxy resin, or a resin material having a high transmittance.
- the resin material having a high transmittance is formed by mixing a light-dispersing agent with a glass-containing base material or a glass base material.
- the output light of the body hair light irradiation device 1 will be described.
- the spectrum of the output light of the body hair light irradiation device 1 is controlled through the output of the light source unit 80 by the control unit 50.
- 3 (a) to 3 (c) show the water absorption spectrum.
- the absorbance in the wavelength range of 1100 nm to 1800 nm is displayed as a relative value with respect to the peak absorbance (reference absorbance).
- the solid lines in FIGS. 3A to 3C indicate the spectrum of the output light of the body hair light irradiating apparatus 1 (hereinafter, “output spectrum”).
- output spectrum the spectrum of the output light of the body hair light irradiating apparatus 1
- the intensity in the wavelength range of 1100 nm to 1800 nm is displayed as a relative value with respect to the peak intensity (reference intensity).
- FIGS. 3 (a) to 3 (c) show these two spectra superimposed on each other, assuming that the reference absorbance in the absorption spectrum and the reference intensity in the output spectrum are “1”, respectively.
- the output spectrum in each figure corresponds to a relative spectrum using the absorption spectrum as a reference spectrum.
- 3A to 3C show the absorption spectrum and output spectrum obtained under a standard temperature environment.
- the standard temperature environment shows a case where the ambient temperature is room temperature.
- the absorption spectrum of water will be described.
- the absorption spectrum shows the absorbance having a significant magnitude from around 1150 nm. In the wavelength range from 1150 nm to 1370 nm, the absorbance of the absorption spectrum increases slightly as the wavelength increases.
- the absorption spectrum has an absorption peak region in the range of 1370 nm to 1540 nm. That is, the absorption peak showing the maximum absorbance exists in the wavelength range of 1100 nm to 1800 nm.
- a fundamental portion on the short wavelength side of the absorption peak region exists around 1370 nm, which is a shorter wavelength than the absorption peak.
- the root portion on the short wavelength side has a convex inflection point.
- the absorption peak region There is a fundamental portion on the long wavelength side of the absorption peak region around 1540 nm, which is longer than the absorption peak.
- the root part on the long wavelength side has a concave inflection point.
- An absorption peak is present at 1450 nm.
- the absorption peak region has a convex inflection point at 1495 nm and has a concave inflection point around 1540 nm.
- the absorption spectrum has another peak region in the wavelength range of 1750 nm to 1800 nm.
- FIG. 3A shows an output spectrum (hereinafter, “reference output spectrum”) when the temperature of the LED chip 81 (hereinafter, “light source temperature”) belongs to the reference temperature region.
- FIG. 3B shows an output spectrum when the light source temperature belongs to the first temperature region higher than the reference temperature region.
- FIG. 3C shows an output spectrum when the light source temperature belongs to a second temperature region that is higher than the first temperature region.
- the reference temperature corresponds to the light source temperature when the LED chip 81 is sufficiently dissipating heat in a standard temperature environment.
- the reference output spectrum has a significant component in the wavelength range of 1200 nm to 1600 nm.
- the reference output spectrum has no significant component outside the wavelength range of 1200 nm to 1600 nm.
- a significant component means the component which has the possibility of affecting the promotion of hair growth action.
- the reference output spectrum has a main peak region including an output light peak showing the maximum intensity in the wavelength range of 1200 nm to 1600 nm.
- the reference output spectrum has no significant peak region other than the main peak region in the wavelength range of 1200 nm to 1600 nm. That is, the reference output spectrum has a single peak region in the wavelength range of 1200 nm to 1600 nm.
- the significant peak area has shown the peak area (spectrum) which has the possibility of affecting the promotion of hair-growth effect
- the main peak region has an output light peak at 1450 nm which substantially matches the wavelength of the absorption peak.
- a fundamental portion on the short wavelength side of the main peak region exists around 1200 nm, which is shorter than the output light peak.
- a fundamental portion on the long wavelength side of the main peak region exists around 1600 nm, which is longer than the output light peak.
- the main peak region may have an output light peak at a wavelength other than 1450 nm.
- a preferable range that the output light peak can take in the main peak region is, for example, a wavelength range of 1350 nm to 1550 nm.
- the main peak region has a convex inflection point in the wavelength range of 1330 nm to 1360 nm.
- the main peak region has a concave inflection point in the wavelength range of 1370 nm to 1390 nm.
- the main peak region has a convex inflection point in the wavelength range of 1390 nm to 1410 nm.
- the main peak region has a concave inflection point in the wavelength range of 1410 nm to 1420 nm.
- the main peak region has a convex inflection point in the wavelength range of 1420 nm to 1430 nm.
- the main peak region has a concave inflection point in the wavelength range of 1430 nm to 1440 nm.
- the main peak region does not have a clear inflection point in the wavelength range of 1450 nm to 1600 nm.
- strength of the vertex (output light peak) of a main peak area is 60 microwatt / cm ⁇ 2 > / nm as an example.
- the main peak area has at least the following four characteristics.
- the first feature is described as follows.
- the peak that is the main peak area component on the longer wavelength side than the peak of the main peak area is the integrated value of the peak short wavelength component that is the main peak area component on the short wavelength side of the peak (output light peak) of the main peak area It is larger than the integral value of the long wavelength component.
- the peak region short wavelength component includes a component from the fundamental portion on the short wavelength side of the main peak region to the apex of the main peak region.
- An example of the integrated value of the peak region short wavelength component is 5400 ⁇ W / cm 2 .
- the peak region long wavelength component includes a component from the apex of the main peak region to the root portion on the long wavelength side of the main peak region.
- An example of the integrated value of the peak region long wavelength component is 4338 ⁇ W / cm 2 .
- the second feature is described as follows.
- the maximum gradient of the short wavelength side which is the maximum gradient of the main peak region on the short wavelength side from the apex of the main peak region (output light peak), is the maximum gradient of the main peak region on the long wavelength side of the apex of the main peak region It is smaller than the long wavelength side maximum gradient.
- the short wavelength side maximum gradient is confirmed between the wavelength of the peak (output light peak) of the main peak area and a predetermined wavelength on the short wavelength side of the peak of the main peak area.
- the short wavelength side maximum gradient is confirmed in a wavelength range of 1420 nm to 1450 nm.
- An example of the short wavelength side maximum gradient is 0.59 ⁇ W / cm 2 / nm 2 .
- the long-wavelength side maximum gradient is confirmed between the wavelength of the peak (output light peak) of the main peak region and a predetermined wavelength on the longer wavelength side of the peak of the main peak region.
- the long-wavelength side maximum gradient is confirmed in a wavelength range of 1450 nm to 1510 nm.
- An example of the long wavelength side maximum gradient is 1.1 ⁇ W / cm 2 / nm 2 .
- the third feature is described as follows.
- the long wavelength side maximum gradient is larger than the long wavelength side absorbance gradient which is the maximum gradient of the absorption peak region on the long wavelength side from the apex (absorption peak) of the water absorption peak region.
- the long wavelength side absorbance gradient is confirmed in the wavelength range of 1490 nm to 1530 nm as an example.
- the fourth feature is described as follows.
- the short wavelength side maximum gradient is smaller than the short wavelength side absorbance gradient which is the maximum gradient of the absorption peak region on the short wavelength side than the apex (absorption peak) of the water absorption peak region.
- the long wavelength side absorbance gradient is confirmed in a wavelength range of 1420 nm to 1450 nm.
- the inventor of the present application examines the relationship between the irradiation time of light and the amount of light absorbed by the living body (hereinafter referred to as “absorbed light amount”), and has the above four characteristics based on the knowledge obtained from the result.
- the output spectrum was defined.
- the hair growth action becomes difficult to be promoted as the light irradiation time becomes longer.
- the reason is considered to be due to a decrease in the amount of absorbed light.
- the reason why the amount of absorbed light is reduced is considered as follows.
- the living body mainly absorbs a component superimposed on the absorption spectrum of water in the light output from the light irradiation apparatus for body hair.
- the living body is particularly likely to absorb a component that overlaps with the absorption peak region of water in the light output from the light irradiation apparatus for body hair.
- the amount of absorbed light mainly depends on the amount of light output from the light irradiation device for body hair and the amount of the output light that overlaps with the water absorption spectrum.
- the temperature of the light source part rises to cause a phenomenon that the spectrum of light shifts to the longer wavelength side with respect to the reference spectrum (hereinafter referred to as “spectrum shift”).
- the amount by which the spectrum is shifted by the spectrum shift (hereinafter referred to as “shift amount”) increases as the temperature of the light source unit increases.
- the temperature of the light source rises as the light irradiation time becomes longer. For this reason, the shift amount increases as the light irradiation time becomes longer.
- the inventor of the present application examined a light spectrum in which the overlapped portion with the light absorption spectrum did not decrease much even if the shift amount of the light spectrum increased due to the spectrum shift, and obtained the following knowledge from the result.
- the integral value of the peak region short wavelength component is larger than the integral value of the peak region long wavelength component, compared to the case where the integral value of the peak region short wavelength component is less than or equal to the integral value of the peak region long wavelength component. Even if the amount of shift of the spectrum of light due to the spectrum shift increases, the amount of absorbed light is unlikely to decrease. The reason is presumed as follows.
- the spectrum shift direction in the spectrum shift is one direction (long wavelength side)
- the peak long wavelength component overlaps with the water absorption spectrum compared to the peak short wavelength component.
- the peak region short wavelength component exists on the shorter wavelength side than the peak region long wavelength component, so the portion that does not overlap with the water absorption spectrum as the amount of shift of the spectrum increases is the peak region long wavelength component No more than.
- the integral value of the peak region short wavelength component is larger than the integral value of the peak region long wavelength component, the amount of absorbed light does not decrease much even if a spectral shift occurs. For this reason, even if the irradiation time of light increases, the effect which accelerates
- the inventor of the present application confirmed the influence of the spectral shift on the amount of absorbed light based on the comparison with the spectrum of light output from the light irradiation device of the comparative example (hereinafter referred to as “comparison spectrum”).
- the comparative spectrum will be described with reference to FIGS. 4 (a) to 4 (c).
- the dashed-dotted lines in FIGS. 4 (a) to 4 (c) show the water absorption spectrum.
- the absorbance in the wavelength range of 1100 nm to 1800 nm is displayed as a relative value with respect to the peak absorbance (reference absorbance).
- comparative spectrum the output spectrum (hereinafter referred to as “comparison spectrum”) of the light output from the light irradiation device of the comparative example.
- comparative spectrum the intensity in the wavelength range of 1100 nm to 1800 nm is displayed as a relative value with respect to the peak intensity (reference intensity).
- FIG. 4A shows a comparison spectrum when the light source temperature belongs to the reference temperature region (hereinafter, “reference comparison spectrum”).
- FIG. 4B shows a comparative spectrum when the light source temperature belongs to the first temperature region.
- FIG. 4C shows a comparative spectrum when the light source temperature belongs to the second temperature region.
- the reference comparison spectrum has a significant component in the wavelength range of 1200 nm to 1600 nm.
- the reference comparison spectrum has no significant component outside the wavelength range of 1200 nm to 1600 nm.
- the reference comparison spectrum has a comparison peak region including the maximum intensity as the output light peak in the wavelength range of 1200 nm to 1600 nm.
- the reference comparison spectrum has no significant peak region other than the comparative peak region in the wavelength range of 1200 nm to 1600 nm. That is, the reference comparison spectrum has a single peak region in the wavelength range of 1200 nm to 1600 nm.
- the comparative peak area is a comparative peak area short wavelength component which is a component on the short wavelength side from the apex (output light peak) of the comparative peak area, and a comparative peak area which is a component on the long wavelength side from the apex of the comparative peak area Has a long wavelength component.
- the comparative peak area has a substantially line-symmetric shape with respect to a symmetrical line passing perpendicularly through the apex of the comparative peak area. That is, the comparative peak region short wavelength component and the comparative peak region long wavelength component have a line-symmetric relationship with respect to the symmetry line.
- the comparative peak region has an output light peak at 1450 nm that substantially matches the wavelength of the absorption peak.
- a fundamental portion on the long wavelength side of the comparative peak region exists around 1600 nm, which is longer than the output light peak.
- strength of the vertex (output light peak) of a comparative peak area is 60 microwatts / cm ⁇ 2 > / nm as an example.
- the spectral shift of the comparative spectrum will be described with reference to FIGS. 4 (a) to 4 (c).
- the light irradiation device of the comparative example causes the light source unit to start outputting light based on the operation of the output operation unit by the operator.
- the irradiation time of the light output from the light source unit is less than the first predetermined time
- the light source temperature belongs to the reference temperature region.
- a comparative spectrum shows the reference
- the irradiation time is equal to or longer than the first predetermined time, the light source temperature transitions to the first temperature region, thereby causing a spectrum shift.
- the reference comparison spectrum changes to the comparison spectrum shown in FIG.
- the comparative spectrum shown in FIG. 4B changes to the comparative spectrum shown in FIG. 4C as an example with an increase in the light source temperature.
- the comparative peak region long wavelength component and the comparative peak region short wavelength component are reduced in the portion overlapping the water absorption peak region in the process of changing from the reference comparative spectrum of FIG. 4A to the comparative spectrum of FIG. 4B. To do.
- the comparative peak region long wavelength component and the comparative peak region short wavelength component have a portion that overlaps with the water absorption peak region in the process of changing from the comparative spectrum of FIG. 4B to the comparative spectrum of FIG. Further decrease.
- 4 (a) to 4 (c) indicate the amount of light absorbed by the light irradiation device of the comparative example.
- the amount of absorbed light decreases in the order of the reference comparison spectrum in FIG. 4A, the comparison spectrum in FIG. 4B, and the comparison spectrum in FIG. That is, the amount of absorbed light decreases as the irradiation time increases.
- the amount of absorbed light at each wavelength in the comparative peak region can be determined mainly by the product of the light intensity at each wavelength and the absorbance of water.
- the control unit 50 causes the light source unit 80 to start outputting light based on the operation of the output operation unit 42 by the operator.
- the irradiation time of the light output from the light source unit 80 is less than the first predetermined time
- the light source temperature belongs to the reference temperature region.
- the output spectrum indicates the reference output spectrum of FIG.
- the irradiation time is equal to or longer than the first predetermined time
- the light source temperature transitions to the first temperature region, thereby causing a spectrum shift.
- the reference output spectrum changes to the output spectrum shown in FIG. 3B as an example as the light source temperature increases.
- the irradiation time is equal to or longer than the second predetermined time
- the light source temperature further rises and transitions to the second temperature region.
- the output spectrum shown in FIG. 3B changes to the output spectrum shown in FIG. 3C as an example, as the light source temperature increases.
- the portion overlapping the water absorption peak region further decreases.
- the portion overlapping with the absorption peak region of water decreases in the process of changing from the output spectrum of FIG. 3B to the output spectrum of FIG.
- the area of the short wavelength component in the peak region is larger than the short wavelength component in the comparative peak region, the overlapping portion with the water absorption spectrum does not decrease much as compared with the comparative peak region as the entire main peak region. For this reason, the amount of light absorbed by the living body does not decrease so much in the output spectrum as compared with the comparative spectrum even if the light irradiation time increases.
- 3 (a) to 3 (c) indicate the absorbed light amount of the output light of the body hair light irradiation device 1.
- the amount of absorbed light has substantially the same magnitude in the reference output spectrum of FIG. 3A and the output spectrum of FIG.
- the amount of absorbed light in the output spectrum of FIG. 3C is less than the amount of absorbed light in the reference output spectrum of FIG. 3A and the output spectrum of FIG.
- the amount of absorbed light at each wavelength in the main peak region can be determined mainly by the product of the light intensity at each wavelength and the absorbance of water.
- the light irradiation apparatus 1 for body hair has the following effects. (1) In the main peak region of the output light, the integrated value of the peak region short wavelength component is larger than the integrated value of the peak region long wavelength component. For this reason, when a spectral shift occurs, the overlapping portion between the main peak region and the water absorption peak region does not decrease so much. For this reason, even if the irradiation time of light increases, the fall of absorbed light quantity is suppressed.
- the short wavelength side maximum gradient is smaller than the long wavelength side maximum gradient. For this reason, even when a spectral shift occurs, the overlapping portion of the short wavelength component in the peak region and the water absorption peak region does not decrease so much. For this reason, the effect of said (1) is improved more.
- the long wavelength side maximum gradient of the main peak region of the output light is larger than the long wavelength side absorbance gradient of the absorption peak region. For this reason, even when a spectral shift occurs, it is possible to suppress an increase in the portion that does not overlap with the water absorption peak region in the peak region long wavelength component. For this reason, it is suppressed that the ratio of the absorbed light quantity with respect to the quantity of the output light irradiated to the biological body falls.
- the short wavelength side maximum gradient of the main peak region of the output light is smaller than the short wavelength side absorbance gradient of the absorption peak region. For this reason, even when a spectral shift occurs, the overlapping portion of the short wavelength component in the peak region and the water absorption peak region does not decrease so much. For this reason, the effect of said (1) is improved more.
- the light irradiation apparatus 1 for body hair has advantageous effects in the following respects with respect to the light irradiation apparatus of the comparative example.
- the output spectrum (comparison spectrum) of light output from the light irradiation device of the comparative example is different from the output spectrum of the body hair light irradiation device 1 in the following points.
- the comparative spectrum has a peak region (comparative peak region) including the maximum intensity as the output light peak in the wavelength range of 1200 nm to 1600 nm.
- the comparative peak region has a substantially line-symmetric relationship with respect to a symmetrical line that passes vertically through the apex (output light peak) of the comparative peak region.
- the comparative peak region has a comparative peak region short wavelength component on the short wavelength side from the apex and a comparative peak region long wavelength component on the long wavelength side from the apex.
- the comparative peak region short wavelength component may have the same shape as the peak region short wavelength component of the main peak region of the body hair light irradiation device 1.
- the comparative peak region long wavelength component forms a line symmetrical relationship with the comparative peak region short wavelength component with respect to the above-described symmetry line.
- the integrated value of the comparative peak region long wavelength component is larger than the integrated value of the peak region long wavelength component of the body hair light irradiation device 1 in the above embodiment.
- the comparison peak area long wavelength component can have a larger overlapping portion with the absorption peak area.
- the comparative peak region long wavelength component is present on the shift direction side in the spectral shift with respect to the peak of the absorption peak region. For this reason, when a spectral shift occurs, the ratio of the comparative peak region long wavelength component that contributes to the formation of the overlapping portion with the absorption peak region is smaller than that of the comparative peak region short wavelength component. That is, when a spectral shift occurs, the efficiency of forming the overlapping portion of the comparative peak region long wavelength component with the absorption peak region is lower than that of the comparative peak region short wavelength component.
- the total integrated value in the comparative spectrum of the light irradiation device of the comparative example is larger than the total integrated value in the output spectrum of the body hair light irradiation device 1.
- the light irradiation apparatus of the comparative example uses a large amount of electrical energy for light output. Therefore, the light source unit of the irradiation device of the comparative example is likely to be heated to a higher temperature than the light source unit 80 of the body hair light irradiation device 1. For this reason, in the light irradiation apparatus of a comparative example, a spectrum shift tends to occur.
- the integrated value of the comparative peak region long wavelength component is large, it becomes easy to secure a superimposed portion with the absorption peak region, while the spectrum shift with the increase in energy consumption. Is easier to promote. For this reason, there is a high possibility that the formation efficiency of the overlapping portion between the comparative peak region and the water absorption peak region when a spectral shift occurs is lowered.
- the integrated value of the peak region long wavelength component is smaller than the integrated value of the peak region short wavelength component.
- the first advantageous effect is described as follows.
- the integral value of the peak region long wavelength component having a lower contribution to the formation of the overlapped portion than the peak region short wavelength component is small. For this reason, compared with the light irradiation apparatus of a comparative example, the energy consumed in order to ensure the superimposition part of the main peak area and the light absorption peak area is reduced.
- the second beneficial effect is described as follows.
- the integral value of the peak region long wavelength component of the main peak region is smaller than the integral value of the comparative peak region long wavelength component of the comparative peak region.
- the electrical energy used for the output of light is smaller than the light irradiation apparatus of a comparative example.
- the shift amount is unlikely to increase.
- the energy consumed in order to ensure the superimposition part of the main peak area and the light absorption peak area is small.
- the body hair light irradiation device 1 can be implemented in other embodiments different from the above embodiment.
- Other embodiment includes the modification of embodiment shown below as an example. The following modifications can be combined with each other within a technically consistent range.
- the power supply part 30 may convert the alternating current of a commercial power source into a direct current, and may supply the electric power after conversion to each electric block.
- the operation part 40 may have a form of a switch or a touch panel as an example.
- the LED lamp may have a bullet-shaped form.
- the output light may be defined by the following features:
- the main peak area of the output light is the base point of the short wavelength side that is the base point of the main peak area that exists on the short wavelength side from the top of the main peak area, and the main peak that exists on the long wavelength side of the top of the main peak area It has a long wavelength side base point that is the base point of the region.
- the main peak region has a short-wavelength side point-to-point gradient defined by the short wavelength side base point and the apex of the main peak region.
- the main peak region has a long-wavelength side point-to-point gradient defined by the apex of the main peak region and the long-wavelength side base point.
- the short wavelength side two-point gradient is smaller than the long wavelength side two-point gradient.
- the apex of the main peak region exists in the wavelength range of 1350 nm to 1550 nm when the light source temperature belongs to any of the reference temperature region, the first temperature region, the second temperature region, and other temperature regions. Preferably, it exists in a wavelength range of 1400 nm to 1500 nm.
- the apex of the main peak region is preferably in the wavelength range of 1350 nm to 1550 nm, and more preferably in the wavelength range of 1400 nm to 1500 nm, when the light source temperature belongs to the main temperature region.
- the main temperature region is a temperature region in which the light source temperature belongs to the longest period in the period from the start of use to the end of use of the body hair light irradiation device 1.
- the light source temperature transitions in the order of the reference temperature region, the first temperature region, and the second temperature region during the period from the start of use to the end of use of the body hair light irradiation device 1.
- the first temperature region corresponds to the main temperature region.
- the main temperature region can be defined in advance based on the use conditions set for the body hair light irradiation device 1. In the case where the main temperature region differs according to the specified time selected according to the operation of the irradiation time setting unit 43, for example, one of the specified times is included in the use condition of the body hair light irradiation apparatus 1. Based on this use condition, the main temperature region can be defined.
- the above-mentioned modification defines a preferable wavelength range that can be taken by the apex of the main peak region based on the relationship with the main temperature region.
- This modification can further take at least one of the following configurations (a) and (b).
- the difference between the integrated value of the peak region short wavelength component and the integrated value of the peak region long wavelength component is the integrated value of the peak region short wavelength component and the integrated value of the peak region long wavelength component in the output light spectrum of the above embodiment. It is smaller than the difference. That is, the overall shape of the main peak area is more symmetric with respect to the symmetry line passing perpendicularly through the apex of the main peak area, compared to the overall shape of the main peak area of the above embodiment. .
- the difference between the short wavelength side maximum gradient and the long wavelength side maximum gradient is smaller than the difference between the short wavelength side maximum gradient and the long wavelength side maximum gradient in the output light spectrum of the above embodiment. That is, the overall shape of the main peak area is more symmetric with respect to the symmetry line passing perpendicularly through the apex of the main peak area, compared to the overall shape of the main peak area of the above embodiment. .
- Example 2 The inventor of the present application implements the hair growth demonstration test described below, thereby promoting the hair growth action obtained by the light irradiation apparatus for body hair 1 of the above embodiment and the hair growth action obtained by the light irradiation apparatus of the comparative example. The difference in the promotion effect was confirmed. Note that the light output from the light irradiation device of the comparative example has a comparative spectrum shown in FIGS. 4 (a) to 4 (c) as described above.
- the lower limbs of adult males were used as light irradiation target sites.
- the number of samples of the irradiation target site was set to 4.
- a part of the irradiation target part was set as the observation target part.
- the site to be observed was set as the site to be irradiated by shaving all the body hair at the predetermined site of the site to be irradiated.
- the site to be observed has a range of 4 cm ⁇ 4 cm.
- the irradiation schedule, irradiation time, output frequency, and observation period were defined as a plurality of experimental conditions as follows.
- the irradiation schedule was set to 5 days. Then, on each day of the five days of the irradiation schedule, light irradiation based on the prescribed irradiation time and output frequency was performed once. Three types of irradiation time were set: 5 minutes, 10 minutes, and 20 minutes.
- the irradiation time indicates the time per day for irradiating the observation target site with the light irradiation device 1 for body hair.
- the output frequency As the output frequency, three types of 0 Hz (continuous irradiation), 100 Hz, and 500 Hz were set.
- the output frequency is an output frequency TL of light irradiated to the irradiation target site.
- Four types of observation time were set before the start, 10th, 20th, and 30th. The day after the first irradiation of light to the irradiation target site was set as the first day of the observation period.
- the number of hairs indicates the diameter of the base of the hair.
- the base of the hair indicates the portion of the hair that has grown from the skin that is closest to the skin.
- the inventors of the present application set the test conditions for the hair growth demonstration test by combining the irradiation time, the output frequency, and the observation period, and conducted the test based on the same test conditions in each of the examples and comparative examples.
- the results of the hair growth demonstration test in the examples are shown in [Table 1].
- the results of the hair growth demonstration test in the comparative example are shown in [Table 2].
- the number of hairs in the examples is larger than the number of hairs in the comparative example.
- the number of hairs showed the largest value under the conditions of irradiation time “20 minutes”, output frequency “500 Hz”, and observation period “30 days”.
- the hair thickness in the examples is thicker than the number of hairs in the comparative example.
- the thickness of the hair showed the largest value under the conditions of the irradiation time “20 minutes”, the output frequency “500 Hz”, and the observation time “30 days”.
- the length of the hair in the example is longer than the length of the hair in the comparative example.
- the length of the hair showed the largest value under the conditions of the irradiation time “20 minutes”, the output frequency “500 Hz”, and the observation period “30 days”.
- the above measurement results show that, even if the light irradiation time increases, the decrease in the amount of absorbed light based on the output light of the light irradiating device 1 for body hair is lower than that of the amount of absorbed light based on the output light of the light irradiating device of the comparative example It is small. That is, it is shown that the hair-growth action is more easily promoted by using the body hair light irradiating apparatus 1 than when the comparative example light irradiating apparatus is used.
Abstract
Description
一実施形態において、前記主要ピーク域は、前記出力光ピークよりも短波長側に存在する前記主要ピーク域の基点である短波長側基点と、前記出力光ピークよりも長波長側に存在する前記主要ピーク域の基点である長波長側基点とを有し、ここで、前記長波長側基点と前記出力光ピークとを結ぶ2点間ラインの勾配が、前記短波長側基点と前記出力光ピークとを結ぶ2点間ラインの勾配よりも大きいことが好ましい。
体毛用光照射装置1は、生体に光を照射することにより、生体の育毛作用を促進させることに貢献する。育毛は、生体における体毛の再生および成長が促進される現象を示す。育毛作用は、育毛を促進させる生体の作用を示す。光の照射により育毛作用が促進されるにつれて、育毛が促進されやすくなる。
光源部ユニット70は、光源部ハウジング71、配光レンズ72、および、光源部80の他に、プリント基板73、導電パターン74、レジスト75、および、導電部品76を含む。
吸光スペクトルは、1150nmあたりから有意な大きさを持つ吸光度を示している。1150nm~1370nmの波長範囲においては、波長が長くなるにつれて、吸光スペクトルの吸光度がわずかに増加する。吸光スペクトルは、1370nm~1540nmの範囲に吸光ピーク域を有している。つまり、最大の吸光度を示す吸光ピークは、1100nm~1800nmの波長範囲において存在する。吸光ピークよりも短波長の1370nmあたりに吸光ピーク域の短波長側の根本部分が存在している。短波長側の根本部分は、凸状の変曲点を有する。吸光ピークよりも長波長の1540nmあたりに吸光ピーク域の長波長側の根本部分が存在している。長波長側の根本部分は、凹状の変曲点を有する。吸光ピークは、1450nmに存在している。吸光ピーク域は、1495nmにおいて凸状の変曲点を有し、1540nmあたりにおいて凹状の変曲点を有している。吸光スペクトルは、1750nm~1800nmの波長範囲において別のピーク域を有している。
図3(a)は、LEDチップ81の温度(以下、「光源温度」)が基準温度領域に属する場合の出力スペクトル(以下、「基準出力スペクトル」)を示している。図3(b)は、光源温度が基準温度領域よりも高い第1温度領域に属する場合の出力スペクトルを示している。図3(c)は、光源温度が第1温度領域よりも高い第2温度領域に属する場合の出力スペクトルを示している。基準温度は、標準的な温度環境下においてLEDチップ81が十分に放熱しているときの光源温度に相当する。
第1の特徴は、次のとおり記述される。主要ピーク域の頂点(出力光ピーク)よりも短波長側の主要ピーク域成分であるピーク域短波長成分の積分値が、主要ピーク域の頂点よりも長波長側の主要ピーク域成分であるピーク域長波長成分の積分値よりも大きい。
図4(a)~4(c)の一点鎖線は、水の吸光スペクトルを示している。この吸光スペクトルは、1100nm~1800nmの波長範囲における吸光度をピーク吸光度(基準の吸光度)に対する相対値として表示している。
比較例の光照射装置は、操作者による出力操作部の操作に基づいて、光源部に光の出力を開始させる。光源部から出力される光の照射時間が第1所定時間未満の場合、光源温度が基準温度領域に属する。このとき、比較スペクトルが図4(a)の基準比較スペクトルを示す。照射時間が第1所定時間以上の場合、光源温度が第1温度領域に遷移することにより、スペクトルシフトが生じる。その結果、基準比較スペクトルは、光源温度の上昇にともない、一例として、図4(b)に示される比較スペクトルに変化する。照射時間が第1所定時間よりも長い第2所定時間以上の場合、光源温度がさらに上昇して第2温度領域に遷移する。その結果、図4(b)に示される比較スペクトルは、光源温度の上昇にともない、一例として、図4(c)に示される比較スペクトルに変化する。
制御部50は、操作者による出力操作部42の操作に基づいて、光源部80に光の出力を開始させる。光源部80から出力される光の照射時間が第1所定時間未満の場合、光源温度が基準温度領域に属する。このとき、出力スペクトルが図3(a)の基準出力スペクトルを示す。照射時間が第1所定時間以上の場合、光源温度が第1温度領域に遷移することにより、スペクトルシフトが生じる。その結果、基準出力スペクトルは、光源温度の上昇にともない、一例として、図3(b)に示される出力スペクトルに変化する。照射時間が第2所定時間以上の場合、光源温度がさらに上昇して第2温度領域に遷移する。その結果、図3(b)に示される出力スペクトルは、光源温度の上昇にともない、一例として、図3(c)に示される出力スペクトルに変化する。
(1)出力光の主要ピーク域において、ピーク域短波長成分の積分値がピーク域長波長成分の積分値よりも大きい。このため、スペクトルシフトが生じた場合において、主要ピーク域と水の吸光ピーク域との重畳部分があまり減少しない。このため、光の照射時間が増加しても吸収光量の低下が抑制される。
・操作部40が、一例として、スイッチまたはタッチパネルの形態を有していてもよい。
・出力光が、次の特徴によって規定されてもよい。出力光の主要ピーク域は、主要ピーク域の頂点よりも短波長側に存在する主要ピーク域の基点である短波長側基点、および、主要ピーク域の頂点よりも長波長側に存在する主要ピーク域の基点である長波長側基点を有している。主要ピーク域は、短波長側基点と主要ピーク域の頂点とにより規定される短波長側2点間勾配を有する。また、主要ピーク域は、主要ピーク域の頂点と長波長側基点とにより規定される長波長側2点間勾配を有する。短波長側2点間勾配は、長波長側2点間勾配よりも小さい。
本願発明者は、以下に説明する育毛実証試験を実施することにより、上記実施形態の体毛用光照射装置1により得られる育毛作用の促進効果、および、比較例の光照射装置により得られる育毛作用の促進効果の相違を確認した。なお、比較例の光照射装置が出力する光は、上述のとおり、図4(a)~4(c)に示される比較スペクトルを有している。
照射時間として、5分、10分、および、20分の3種類を設定した。照射時間は、体毛用光照射装置1による観察対象部位への光の照射を行う1日あたりの時間を示している。
観察時期として、開始前、10日、20日、および、30日の4種類を設定した。照射対象部位に対して最初に光を照射した日の翌日を観察時期の第1日目に設定した。
Claims (4)
- 光を照射する体毛用光照射装置であって、
光を出力する光源部と、
前記光源部に接続され、前記光源部の出力を制御する制御部と、を備え、
前記制御部は、前記光源部の出力を通じた前記体毛用光照射装置の出力光が、最大強度を示す出力光ピークを1350nm~1550nmの波長範囲内に含む主要ピーク域を有し、前記出力光ピークよりも短波長側の主要ピーク域成分であるピーク域短波長成分の積分値が、前記出力光ピークよりも長波長側の主要ピーク域成分であるピーク域長波長成分の積分値よりも大きくなるように前記光源部の出力を制御する、
体毛用光照射装置。 - 前記出力光ピークよりも短波長側における前記主要ピーク域の最大勾配である短波長側最大勾配は、前記出力光ピークよりも長波長側における前記主要ピーク域の最大勾配である長波長側最大勾配よりも小さい、
請求項1に記載の体毛用光照射装置。 - 水の吸光スペクトルが、最大吸光度を示す吸光ピークを1440nm~1460nmの波長範囲内に含む吸光ピーク域を有し、
前記制御部は、前記水の吸光スペクトルに対して前記出力光のスペクトルを制御することにより、前記主要ピーク域の前記長波長側最大勾配を、前記吸光ピークよりも長波長側における前記吸光ピーク域の最大勾配である長波長側吸光度勾配よりも大きくする、
請求項2に記載の体毛用光照射装置。 - 水の吸光スペクトルが、最大吸光度を示す吸光ピークを1440nm~1460nmの波長範囲内に含む吸光ピーク域を有し、
前記制御部は、前記水の吸光スペクトルに対して前記出力光のスペクトルを制御することにより、前記主要ピーク域の前記短波長側最大勾配を、前記吸光ピークよりも短波長側における前記吸光ピーク域の最大勾配である短波長側吸光度勾配よりも小さくする、
請求項2または3に記載の体毛用光照射装置。
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EP14841661.3A EP3042696B1 (en) | 2013-09-06 | 2014-07-30 | Light emitting device for body hair |
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PCT/JP2014/004002 WO2015033513A1 (ja) | 2013-09-06 | 2014-07-30 | 体毛用光照射装置 |
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US (1) | US20160184604A1 (ja) |
EP (1) | EP3042696B1 (ja) |
JP (1) | JP6112416B2 (ja) |
CN (1) | CN105473179B (ja) |
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JP6516219B2 (ja) * | 2015-06-24 | 2019-05-22 | 公立大学法人名古屋市立大学 | 光線力学的治療用光照射装置 |
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Also Published As
Publication number | Publication date |
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EP3042696A4 (en) | 2016-09-14 |
EP3042696A1 (en) | 2016-07-13 |
JP6112416B2 (ja) | 2017-04-12 |
CN105473179B (zh) | 2017-08-08 |
CN105473179A (zh) | 2016-04-06 |
US20160184604A1 (en) | 2016-06-30 |
JP2015051118A (ja) | 2015-03-19 |
EP3042696B1 (en) | 2017-06-28 |
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