JP2008178572A - Optical regulation apparatus for body hair growth - Google Patents

Optical regulation apparatus for body hair growth Download PDF

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JP2008178572A
JP2008178572A JP2007014744A JP2007014744A JP2008178572A JP 2008178572 A JP2008178572 A JP 2008178572A JP 2007014744 A JP2007014744 A JP 2007014744A JP 2007014744 A JP2007014744 A JP 2007014744A JP 2008178572 A JP2008178572 A JP 2008178572A
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light
moisture content
unit
hair growth
water content
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Osao Hamada
長生 濱田
Masato Kinoshita
雅登 木下
Yasuhiro Sato
安広 佐藤
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Priority to JP2007014744A priority Critical patent/JP2008178572A/en
Priority to KR1020097016848A priority patent/KR20090110340A/en
Priority to CN 200880003083 priority patent/CN101600472A/en
Priority to US12/524,357 priority patent/US20100100159A1/en
Priority to RU2009131927/14A priority patent/RU2406548C1/en
Priority to EP08703811A priority patent/EP2106824A4/en
Priority to PCT/JP2008/050984 priority patent/WO2008090953A1/en
Priority to TW097102803A priority patent/TWI374763B/en
Publication of JP2008178572A publication Critical patent/JP2008178572A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3554—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B18/203—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser applying laser energy to the outside of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00057—Light
    • A61B2017/00061—Light spectrum
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00452—Skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00452—Skin
    • A61B2018/00476—Hair follicles
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical regulation apparatus for body hair growth in which irradiation can be safely performed even from a location apart from a skin surface. <P>SOLUTION: The optical regulation apparatus for body hair growth has: a photoirradiation part 1 for body hair growth regulation which irradiates light accommodating the growth of body hair to the photoirradiation object section 5 of the human body; a water content measurement section 2 which measures the water content of the water content metering object section 4 of the human body; and a judgment section 3 which judges the propriety of the photoirradiation of the photoirradiation part 1 for body hair growth regulation from the result of the water content measurement section 2. Further, the water content measurement section 2 is provided with: a photoirradiation part 6 for metering which irradiates light containing 1,300 nm or more and 2,000 nm or less wavelength components to a water content metering object section 4; a light-intercepting element 7 which intercepts reflected light from the water content metering object section 4 to convert into an electric signal; and a signal analysis section 8 which analyzes an electric signal from the light-intercepting element 7 to determine the wavelength distribution of the reflected light and presumes water content from this wavelength distribution. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本願発明は、光照射によって体毛の成長を調節する光体毛調節装置に関するものである。   The present invention relates to a light body hair regulating device that regulates the growth of body hair by light irradiation.

従来から、特開２００２−１７７４０５号公報（特許文献１）に示されるような、レーザ光を皮膚に照射して脱毛・育毛などのトリートメントを行うレーザ光照射プローブは知られている。このレーザ光照射プローブは、レーザ光の照射時間をタイマによって制御する制御回路と電源を内蔵し、ケースの正面にヘッド部を突設して先端を開口して球レンズを挿嵌し、球レンズの外周にアジャスタを着脱自在に取付ける。そして、当該アジャスタの先端に接触センサを取付けて皮膚面との接触を検出し、皮膚面と接触したときのみ照射スイッチをオンにする。これにより、離れた所から照射したレーザ光を目に入れて損傷するような事故を未然に防止することができた。
特開２００２−１７７４０５号公報 2. Description of the Related Art Conventionally, there has been known a laser light irradiation probe that performs treatment such as hair removal and hair growth by irradiating a skin with laser light as disclosed in Japanese Patent Application Laid-Open No. 2002-177405 (Patent Document 1). This laser beam irradiation probe incorporates a control circuit that controls the laser beam irradiation time by a timer and a power source, and projects a head part from the front of the case, opens the tip, and inserts a ball lens. An adjuster is detachably attached to the outer periphery of the. A contact sensor is attached to the tip of the adjuster to detect contact with the skin surface, and the irradiation switch is turned on only when the contact is made with the skin surface. As a result, it was possible to prevent an accident in which a laser beam irradiated from a distant place was seen and damaged.
JP 2002-177405 A

しかしながら、特許文献１に記載のレーザ光照射プローブでは、皮膚面と接触したときしかレーザ光を照射することができないため、使用者は使用時に常に皮膚面にアジャスタの先端を接触させる必要があり、利便性に欠ける。また、アジャスタの先端を眼の周辺の皮膚等に接触した状態では、レーザ光を眼に照射することが可能であり、幼児が誤って使用した場合には、眼を損傷するおそれもあった。   However, since the laser light irradiation probe described in Patent Document 1 can irradiate laser light only when it comes into contact with the skin surface, the user must always bring the tip of the adjuster into contact with the skin surface during use. Lack of convenience. Further, in a state where the tip of the adjuster is in contact with the skin around the eye or the like, it is possible to irradiate the eye with laser light, and there is a possibility that the eye may be damaged if used by an infant by mistake.

本願発明は上記の従来の問題点に鑑みて発明したものであって、利便性が高く、幼児が誤って使用したような場合でも眼を損傷するおそれの低い光体毛成長調節装置を提供することにある。   The present invention has been invented in view of the above-mentioned conventional problems, and provides a light hair growth control device that is highly convenient and has a low risk of damaging eyes even when an infant uses it incorrectly. It is in.

上記課題を解決するために、本願請求項１記載の発明では、体毛の成長を調節する光を人体の光照射対象部に照射する体毛成長調節用光照射部と、人体の含水率計測対象部の含水率を含水率計測対象部に接触せずに測定する含水率測定部と、含水率測定部の結果に基づいて体毛成長調節用光照射部の光照射の可否を判断する判断部と、を有することを特徴としている。   In order to solve the above-mentioned problems, in the invention according to claim 1 of the present application, a light irradiation unit for adjusting hair growth that irradiates the light irradiation target part of the human body with light for adjusting the growth of body hair, and a water content measurement target part of the human body A moisture content measurement unit that measures the moisture content of the hair without measuring the moisture content measurement target unit, and a determination unit that determines whether or not the light irradiation unit for body hair growth adjustment light irradiation is possible based on the result of the moisture content measurement unit; It is characterized by having.

また、本願請求項２記載の発明では、上記請求項１記載の光体毛成長調節装置において、含水率測定部は、含水率計測対象部に１３００ｎｍ以上２０００ｎｍ以下の波長成分を含む光を照射する計測用光照射部と、含水率計測対象部からの反射光を受光して電気信号に変換する受光素子と、受光素子からの電気信号を解析して反射光の波長分布を求め、この波長分布から含水率を推定する信号解析部と、を具備するものであることを特徴としている。   Further, in the invention according to claim 2 of the present application, in the light body hair growth regulating apparatus according to claim 1, the moisture content measurement unit is configured to irradiate the moisture content measurement target unit with light containing a wavelength component of 1300 nm to 2000 nm. Light receiving part, light receiving element that receives reflected light from the moisture content measurement target part and converts it into an electrical signal, and analyzes the electrical signal from the light receiving element to determine the wavelength distribution of the reflected light, and from this wavelength distribution And a signal analysis unit for estimating the moisture content.

また、本願請求項３記載の発明では、上記請求項２記載の光体毛成長調節装置において、受光素子が２次元状に複数配置されたものであることを特徴としている。   The invention described in claim 3 of the present application is characterized in that, in the optical hair growth control apparatus described in claim 2, a plurality of light receiving elements are two-dimensionally arranged.

また、本願請求項４記載の発明では、上記請求項２又は請求項３記載の光体毛成長調節装置において、前記計測用光照射部及び受光素子に偏光フィルタを設けたことを特徴としている。   The invention according to claim 4 of the present application is characterized in that, in the optical hair growth control apparatus according to claim 2 or 3, a polarizing filter is provided in the measurement light irradiation unit and the light receiving element.

本願発明の光体毛成長調節装置においては、人体の含水率計測対象部の含水率を含水率計測対象部に接触せずに測定する含水率測定部を有するので、含水率計測対象部と接触していなくても体毛成長調節用光照射部が皮膚であるかどうかを推定して、光照射の可否を判断できる。よって、含水率計測対象部を皮膚とする場合、皮膚から離れた位置からでも安全に体毛成長調節用光照射部の光照射を行うことができ、利便性が増す。また、皮膚に光体毛成長調節装置の一部を接触させる必要がないので、使用者に違和感を与えることもない。   In the light body hair growth regulating device of the present invention, since it has a moisture content measurement unit that measures the moisture content of the moisture content measurement target part of the human body without contacting the moisture content measurement target part, it contacts the moisture content measurement target part. Even if not, it is possible to determine whether or not light irradiation is possible by estimating whether or not the light irradiation unit for controlling hair growth is skin. Therefore, when the moisture content measurement target part is skin, the light irradiation part for body hair growth adjustment can be safely irradiated even from a position away from the skin, and convenience is increased. In addition, since it is not necessary to bring a part of the light hair growth regulating device into contact with the skin, the user does not feel uncomfortable.

以下、本願発明を添付図面に示す実施形態に基づいて説明する。   Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

図１は、本願請求項１、２に対応した第一の実施形態である光体毛成長調節装置を示している。光体毛成長調節装置は、体毛成長調節用光照射部１と、含水率測定部２と、判断部３と、を有する。   FIG. 1 shows an optical hair growth control apparatus according to a first embodiment corresponding to claims 1 and 2 of the present application. The light body hair growth adjustment apparatus includes a body hair growth adjustment light irradiation unit 1, a moisture content measurement unit 2, and a determination unit 3.

体毛成長調節用光照射部１は、キセノンフラッシュランプを光源とし、人体の皮膚等をはじめとする光照射対象部５に対して体毛の成長を調節する光を照射する。   The hair growth adjusting light irradiation unit 1 uses a xenon flash lamp as a light source, and irradiates light irradiation target unit 5 including human skin and the like with light for adjusting the growth of body hair.

含水率測定部２は、人体の皮膚等をはじめとする含水率計測対象部４の含水率を測定するものであり、含水率計測対象部４に１３００ｎｍ以上２０００ｎｍ以下の波長成分を含む光を照射する計測用光照射部６と、含水率計測対象部４からの反射光を受光して電気信号に変換する受光素子７と、受光素子７からの電気信号を解析して反射光の波長分布を求めてこの波長分布から含水率を推定する信号解析部８と、を具備する。受光素子７は、計測用光照射部６の含水率計測対象部４に対する入射方向と４５°の方向から受光する。   The moisture content measurement unit 2 measures the moisture content of the moisture content measurement target unit 4 including human skin, and irradiates the moisture content measurement target unit 4 with light containing a wavelength component of 1300 nm to 2000 nm. Measuring light irradiating unit 6, light receiving element 7 that receives reflected light from moisture content measurement target part 4 and converts it into an electrical signal, and analyzes the electrical signal from light receiving element 7 to determine the wavelength distribution of the reflected light And a signal analysis unit 8 that obtains and estimates the water content from the wavelength distribution. The light receiving element 7 receives light from the incident direction with respect to the moisture content measurement target unit 4 of the measurement light irradiation unit 6 and a direction of 45 °.

このように、１３００〜２０００ｎｍの波長成分を含む光である近赤外領域の光を、水分を含んだ含水率計測対象部４である人体の皮膚等に照射し、近赤外線の反射率から含水率を測定するので、瞬時に、含水率計測対象部４に対して非接触で測定できる。また、計測用光照射部６から照射する光は、低パワーの光を用いても含水率を測定することができ、こうすることで、この光が誤って眼に照射された場合でも、損傷を与えることはない。したがって、非破壊で含水率を測定でき、幼児が誤って使用した場合でも安全性を確保できる。   In this way, light in the near infrared region, which is light including a wavelength component of 1300 to 2000 nm, is applied to the skin of the human body, which is the moisture content measurement target part 4 containing moisture, and water content is determined from the reflectance of the near infrared rays. Since the rate is measured, it can be instantaneously measured without contact with the moisture content measurement target unit 4. In addition, the light emitted from the measurement light irradiating unit 6 can measure the moisture content even when using low-power light, and even if this light is accidentally irradiated to the eye, it is damaged. Never give. Therefore, the moisture content can be measured nondestructively, and safety can be ensured even if an infant uses it by mistake.

判断部３は、含水率測定部２の結果に基づいて体毛成長調節用光照射部１の光照射の可否を判断する。   Based on the result of the moisture content measuring unit 2, the determining unit 3 determines whether or not the light irradiation unit 1 for adjusting hair growth can be irradiated.

図２に体毛成長調節用光照射部１の光照射の可否判断のフローチャートを示す。   FIG. 2 shows a flowchart for determining whether or not the light irradiation unit 1 for adjusting hair growth can be irradiated.

まず、水分を吸収する波長帯の分光吸収値（Ｌ１）を求める。具体的には、計測用光照射部６が含水率計測対象部４である人体の皮膚に１３００ｎｍ以上２０００ｎｍ以下の波長成分を含む光を照射し、受光素子７が人体の皮膚からの反射光を受光して電気信号に変換し、信号解析部８が受光素子７からの電気信号を解析し、水分を吸収する波長帯である１４５０ｎｍ±５ｎｍの分光吸収値（Ｌ１）を求める（Ｓ１）。   First, a spectral absorption value (L1) in a wavelength band that absorbs moisture is obtained. Specifically, the measurement light irradiation unit 6 irradiates the human skin that is the moisture content measurement target unit 4 with light including a wavelength component of 1300 nm or more and 2000 nm or less, and the light receiving element 7 reflects the reflected light from the human skin. The light is received and converted into an electrical signal, and the signal analysis unit 8 analyzes the electrical signal from the light receiving element 7 to obtain a spectral absorption value (L1) of 1450 nm ± 5 nm, which is a wavelength band for absorbing moisture (S1).

次に、メラニンに依存する波長帯である５７０ｎｍ±５ｎｍの分光吸収値（Ｌ０）を求める。具体的には、計測用光照射部６が含水率計測対象部４である人体の皮膚に１３００〜２０００ｎｍの波長成分を含む光を照射し、受光素子７が人体の皮膚からの反射光を受光して電気信号に変換し、信号解析部８が受光素子７からの電気信号を解析し、メラニンに依存する波長帯である５７０ｎｍ±５ｎｍの分光吸収値（Ｌ０）を求める（Ｓ２）。   Next, a spectral absorption value (L0) of 570 nm ± 5 nm which is a wavelength band depending on melanin is obtained. Specifically, the measurement light irradiation unit 6 irradiates the human skin, which is the moisture content measurement target unit 4, with light including a wavelength component of 1300 to 2000 nm, and the light receiving element 7 receives the reflected light from the human skin. Then, the signal is converted into an electric signal, and the signal analysis unit 8 analyzes the electric signal from the light receiving element 7, and obtains a spectral absorption value (L0) of 570 nm ± 5 nm which is a wavelength band depending on melanin (S2).

次に、信号解析部８が水分を吸収する波長帯である１４５０ｎｍ±５ｎｍの分光吸収値（Ｌ１）とメラニンに依存する波長帯である５７０ｎｍ±５ｎｍの分光吸収値（Ｌ０）の割合を演算し、含水率（Ｋ）を出力する。具体的には、「Ｋ＝Ｌ１／Ｌ０」の式から含水率（Ｋ）の値を求める（Ｓ３）。   Next, the signal analysis unit 8 calculates the ratio of the spectral absorption value (L1) of 1450 nm ± 5 nm which is a wavelength band for absorbing moisture and the spectral absorption value (L0) of 570 nm ± 5 nm which is a wavelength band depending on melanin. The moisture content (K) is output. Specifically, the value of the moisture content (K) is obtained from the equation “K = L1 / L0” (S3).

次に、判断部３が、信号解析部８が出力した含水率（Ｋ）が設定範囲内の値であるかを判断する（Ｓ４）。この結果、含水率（Ｋ）が設定範囲内の値であれば、含水率計測対象部４は人体の皮膚であると判断する（Ｓ５）。含水率（Ｋ）が設定範囲内の値でなければ、含水率計測対象部４は人体の皮膚ではないと判断する（Ｓ６）。   Next, the determination unit 3 determines whether the moisture content (K) output from the signal analysis unit 8 is a value within the set range (S4). As a result, if the moisture content (K) is a value within the set range, it is determined that the moisture content measurement target unit 4 is human skin (S5). If the moisture content (K) is not a value within the set range, it is determined that the moisture content measurement target unit 4 is not human skin (S6).

このような安全上の確認ステップを経ることで、光体毛成長調節装置は含水率計測対象部４が皮膚である場合のみに含水率計測対象部４を光照射対象部５とし、この光照射対象部５に対して体毛成長調節用光照射部１からの光照射が行われる。以上の手順により、含水率の異なる眼と皮膚とを区別することができ、幼児が誤使用した場合でも、体毛成長調節用光照射部から照射される強い光が眼に照射されるおそれが低くなる。   Through such a safety confirmation step, the photohair growth control apparatus sets the moisture content measurement target part 4 as the light irradiation target part 5 only when the moisture content measurement target part 4 is skin, and this light irradiation target. The unit 5 is irradiated with light from the body hair growth adjusting light irradiation unit 1. By the above procedure, eyes and skin having different moisture contents can be distinguished, and even if an infant misuses, there is a low risk that the eyes will be irradiated with intense light emitted from the light irradiation unit for hair growth control. Become.

ここで、前記受光素子７は２次元状に複数配置することもできる。受光素子７が２次元状に複数配置された場合は、広い範囲にわたって含水率を測定することができる。このために、より広い範囲の含水率計測対象部について人体の皮膚であるか否かを推定することができ、安全性が向上する。   Here, a plurality of the light receiving elements 7 may be arranged two-dimensionally. When a plurality of light receiving elements 7 are arranged two-dimensionally, the moisture content can be measured over a wide range. For this reason, it can be estimated whether it is the skin of a human body about the moisture content measurement object part of a wider range, and safety improves.

また、上記の含水率測定方法以外にも、マイクロ波方式や誘電率方式による含水率測定でも同様の用及び効果を奏することができる。   In addition to the water content measurement method described above, the same use and effect can be achieved by measuring the water content using a microwave method or a dielectric constant method.

図３は、本願請求項１〜４に対応した第二の実施形態である光体毛成長調節装置を示している。   FIG. 3 shows an optical hair growth control apparatus which is a second embodiment corresponding to claims 1 to 4 of the present application.

なお、ここでは、上記第一の実施形態と相違する事項（構成、作用効果等）についてのみ説明し、その他の事項については、上記第一の実施形態と同様であるのでその説明を省略する。   Here, only matters (configuration, operational effects, etc.) that are different from those in the first embodiment will be described, and the other items are the same as those in the first embodiment, and the description thereof will be omitted.

本実施形態の光体毛成長調節装置は、計測用光照射部６と受光素子７の前にそれぞれ偏光フィルタ９、９'を設けている。含水率を計測する対象は皮膚内部であるのに対して、皮膚に計測用光照射部６からの光を照射すると、照射した光の約７０％を皮膚表面が反射してしまう。このため、受光素子７が受光する光の大半が皮膚表面からの反射光となり、皮膚内部からの反射光が正確に計測できない。しかし、皮膚内部を透過した光は偏光角度が変化するのに対して、皮膚表面の反射光は照射光と同じ偏光角度となる。ここで、計測用光照射部６が所定の偏光角度に偏光した光を照射し、受光素子７が皮膚内部の反射光の偏光角度に偏光した光のみを受光できるようにすれば、皮膚表面の反射光を計測対象から除外して、皮膚内部を透過・反射した光のみを測定することができる。   The optical hair growth control apparatus of this embodiment is provided with polarizing filters 9 and 9 ′ in front of the measurement light irradiation unit 6 and the light receiving element 7, respectively. Whereas the object whose moisture content is to be measured is inside the skin, when the skin is irradiated with light from the measurement light irradiation unit 6, the skin surface reflects about 70% of the irradiated light. For this reason, most of the light received by the light receiving element 7 is reflected light from the skin surface, and the reflected light from the inside of the skin cannot be measured accurately. However, the light transmitted through the skin changes in polarization angle, whereas the reflected light on the skin surface has the same polarization angle as the irradiation light. Here, if the measurement light irradiation unit 6 emits light polarized at a predetermined polarization angle and the light receiving element 7 can receive only light polarized at the polarization angle of the reflected light inside the skin, By excluding the reflected light from the measurement target, only the light transmitted and reflected inside the skin can be measured.

本実施形態の光体毛成長調節装置は、計測用光照射部６の前に偏光フィルタ９を設置して所定の偏光角度に偏光した光を照射できるようにしている。また、受光素子７の前に、皮膚内部の反射光の偏光角度に偏光した光のみを透過する偏光フィルタ９'を設置している。こうすることにより、受光素子７は、皮膚内部を透過・反射した光のみを受光して、皮膚表面の反射光を受光しないようにすることができる。この結果として、皮膚内部の含水率を正確に測定でき、安全性が向上する。   The optical hair growth control apparatus of the present embodiment is provided with a polarizing filter 9 in front of the measurement light irradiation unit 6 so that light polarized at a predetermined polarization angle can be irradiated. Further, in front of the light receiving element 7, a polarizing filter 9 ′ that transmits only light polarized at the polarization angle of the reflected light inside the skin is installed. By doing so, the light receiving element 7 can receive only the light transmitted and reflected inside the skin and can not receive the reflected light on the skin surface. As a result, the moisture content inside the skin can be accurately measured, and safety is improved.

以下に、各実施形態の光体毛成長調節装置における体毛成長調節用光照射部１について詳細に述べる。   Hereinafter, the light irradiation unit 1 for body hair growth adjustment in the light body hair growth regulation apparatus of each embodiment will be described in detail.

皮膚の分光反射率は、日本人の場合、図４に示した３人の分光反射率の分布からもわかるように４００〜６００ｎｍ付近で反射率が低下しており、この波長域の光を吸収しやすい特性をもっている。これは皮膚に存在するメラニンの影響が大きい。図５はメラニン単体の吸光率の分光特性を示しており、５６７ｎｍで照射光の３９％を吸収する。   In the case of Japanese, the spectral reflectance of the skin is reduced in the vicinity of 400 to 600 nm, as can be seen from the spectral reflectance distribution of the three shown in FIG. 4, and absorbs light in this wavelength range. It has the characteristic that it is easy to do. This is greatly influenced by melanin present in the skin. FIG. 5 shows the spectral characteristics of the absorbance of melanin alone, which absorbs 39% of the irradiation light at 567 nm.

このために体毛成長調節用光照射部１からの光照射に際しては、４００〜６００ｎｍという皮膚が吸収しやすい波長帯の光を使用することで、低出力の光で毛に刺激を与えることができる。なお、皮膚に有害な４００ｎｍ以下の紫外線は、体毛成長調節用光照射部１の前にＵＶカットフィルタなどを設けてカットしてもよい。   For this reason, when irradiating light from the body hair growth adjusting light irradiating unit 1, light having a wavelength band of 400 to 600 nm that is easily absorbed by the skin can be used to stimulate the hair with low-power light. . Note that ultraviolet rays having a wavelength of 400 nm or less harmful to the skin may be cut by providing a UV cut filter or the like in front of the light irradiation unit 1 for controlling hair growth.

キセノンフラッシュランプである光源による照射光量としては１５０万〜７００万ｌｕｘの光を閃光時間（ピークパワーの半値）１００〜７００μｓで照射を行う。   As the amount of light emitted from the light source, which is a xenon flash lamp, light of 1.5 million to 7 million lux is irradiated for a flash time (half value of peak power) of 100 to 700 μs.

また、照射エネルギー（Ｊ／ｃｍ２）は、照射パワー（Ｗ）と照射時間（秒）との積であり、この照射エネルギーＫがたとえば０．１Ｊ／ｃｍ２となるように照射パワー（Ｗ）と照射時間（秒）とを制御することで、光照射による副作用の発生を確実に抑えることができる。これに伴って、１回／日の照射を何日かの間隔をおいて行う場合と、１回／日の照射を５〜１０日程度連続して繰返す場合とでは、後者の方がより低パワーの光源を使用することができる。   Further, the irradiation energy (J / cm 2) is a product of the irradiation power (W) and the irradiation time (second), and the irradiation power (W) and the irradiation so that the irradiation energy K becomes, for example, 0.1 J / cm 2. By controlling the time (seconds), it is possible to reliably suppress the occurrence of side effects due to light irradiation. Accordingly, the latter is lower when the irradiation is performed once / day at intervals of several days and when the irradiation is repeated continuously for about 5 to 10 days. A power light source can be used.

ここにおいて、毛（体毛）は成長期から退行期、休止期というサイクルで変化する毛周期を有することが知られている。そして前記照射条件での光照射を皮膚に対して行えば、既存の医療用レーザ等で見られるような細胞形態上の変化が生じることはなく、細胞の破壊も起きない上に、上記毛周期における成長期に光照射を行えば、毛の成長が効果的に抑制されることを本願発明者らはマウス実験で確認している。なお、毛周期における休止期に光を照射すれば、毛周期における成長期における毛の成長が早く進むことも確認している。また火傷等の副作用発生が無いことも確認している。   Here, it is known that hair (body hair) has a hair cycle that changes in a cycle from a growth phase to a regression phase and a resting phase. If the skin is irradiated with light under the irradiation conditions, there is no change in cell morphology as seen with existing medical lasers, no cell destruction occurs, and the hair cycle The present inventors have confirmed through mouse experiments that hair growth is effectively suppressed if light irradiation is carried out during the growth period. It has also been confirmed that if light is irradiated during the rest period of the hair cycle, the hair growth proceeds rapidly in the growth phase of the hair cycle. It has also been confirmed that there are no side effects such as burns.

上記成長期に細胞形態上の変化が生じないレベルの光照射を行うと、毛の成長が抑制される理由は明らかではないが、ＲＮＡレベルでの分析結果では上記光照射によって炎症性サイトカインの活性化が起きていることから、この炎症性サイトカインの活性化が上記の毛の成長抑制をもたらすものと考えられる。   It is not clear why the growth of hair is suppressed when light irradiation is performed at a level that does not cause changes in cell morphology during the growth phase, but the analysis results at the RNA level indicate that the activity of inflammatory cytokines is due to the light irradiation. It is considered that the activation of the inflammatory cytokine brings about the suppression of hair growth described above.

なお、毛周期の変化に効果が出た５００〜６００ｎｍの分光反射率を基準とし，光照射対象の皮膚の分光反射率の変化率に応じて前記照射パワーを変化させるものとする。基準となる特定波長の反射率をＲ０、照射する皮膚の反射率をＲ１とし、Ｒ０の皮膚に対し炎症性サイトカインの活性を達成した光源のパワーをＰ０とすると、求める照射パワーＰは、
Ｐ＝Ｒｌ／Ｒ０×Ｐ０
で求めることができる。そして毛周期に影響を及ぼすエネルギーは一定値となるために、皮膚の分光反射率が高い場合は照射パワーを高くして照射時間を短くすればよい。 In addition, the said irradiation power shall be changed according to the change rate of the spectral reflectance of the skin of light irradiation object on the basis of the spectral reflectance of 500-600 nm which produced the effect in the change of the hair cycle. Assuming that the reflectance of the reference specific wavelength is R0, the reflectance of the skin to be irradiated is R1, and the power of the light source that has achieved the activity of inflammatory cytokines on the skin of R0 is P0, the required irradiation power P is:
P = Rl / R0 × P0
Can be obtained. Since the energy affecting the hair cycle is a constant value, when the spectral reflectance of the skin is high, the irradiation time may be shortened by increasing the irradiation power.

なお、毛周期における成長期と退行期と休止期の各期間は腕，頭髪等、場所により異なっているために、毛の成長抑制を行いたい場所に応じて成長期にあるかどうかを見定めた上で、光照射を行う。   In addition, since each period of the growth period, regression period, and rest period in the hair cycle differs depending on the place such as the arm, hair, etc., it was determined whether or not it is in the growth period depending on the place where hair growth suppression is desired. Above, light irradiation is performed.

ここで、本願発明の実施形態では、体毛成長調節用光照射部１と計測用光照射部６とに異なる照射部を用いているが、同じ照射部を用いることも可能である。こうすることにより、部品点数を少なくして、低コスト化することができる。ただし、この場合には、照射部を計測用光照射部として使用する際には、照射する光の照射パワーを低くして、体毛成長調節用光照射部として使用する際には、照射する光の照射パワーを高くすることが必要となる。   Here, in embodiment of this invention, although the different irradiation part is used for the light irradiation part 1 for body hair growth adjustment, and the light irradiation part 6 for measurement, it is also possible to use the same irradiation part. By doing so, the number of parts can be reduced and the cost can be reduced. However, in this case, when the irradiation unit is used as the measurement light irradiation unit, the irradiation power of the irradiation light is lowered, and when the irradiation unit is used as the body hair growth adjustment light irradiation unit, the irradiation light It is necessary to increase the irradiation power.

本願発明の第一の実施形態である光体毛成長調節装置を示すブロック図である。It is a block diagram which shows the optical hair growth control apparatus which is 1st embodiment of this invention. 同上の光体毛成長調節装置の動作を示すフローチャートである。It is a flowchart which shows operation | movement of the optical body hair growth control apparatus same as the above. 本願発明の第二の実施形態である光体毛成長調節装置を示すブロック図である。It is a block diagram which shows the optical hair growth control apparatus which is 2nd embodiment of this invention. ３人の皮膚の分光反射率の測定結果を示すグラフである。It is a graph which shows the measurement result of the spectral reflectance of three people's skin. メラニン単体の吸光度示すグラフである。It is a graph which shows the light absorbency of a melanin single-piece | unit.

符号の説明Explanation of symbols

１ 体毛成長調節用光照射部
２ 含水率測定部
３ 判断部
４ 含水率計測対象部
５ 光照射対象部
６ 計測用光照射部
７ 受光素子
８ 信号解析部
９、９' 偏光フィルタ DESCRIPTION OF SYMBOLS 1 Light irradiation part for body hair growth adjustment 2 Moisture content measurement part 3 Judgment part 4 Moisture content measurement object part 5 Light irradiation object part 6 Measurement light irradiation part 7 Light receiving element 8 Signal analysis part 9, 9 'Polarization filter

Claims (4)

体毛の成長を調節する光を人体の光照射対象部に照射する体毛成長調節用光照射部と、人体の含水率計測対象部の含水率を含水率計測対象部に接触せずに測定する含水率測定部と、含水率測定部の結果に基づいて体毛成長調節用光照射部の光照射の可否を判断する判断部と、を有することを特徴とする光体毛成長調節装置。   Moisture content that measures the moisture content of a human hair growth control light irradiation unit that irradiates the light irradiation target part of the human body with light that regulates the growth of body hair and the moisture content measurement target part of the human body without contacting the moisture content measurement target part An optical hair growth control apparatus comprising: a rate measurement unit; and a determination unit that determines whether or not the light irradiation unit for body hair growth adjustment can be irradiated based on a result of the moisture content measurement unit. 前記含水率測定部は、含水率計測対象部に１３００ｎｍ以上２０００ｎｍ以下の波長成分を含む光を照射する計測用光照射部と、含水率計測対象部からの反射光を受光して電気信号に変換する受光素子と、受光素子からの電気信号を解析して反射光の波長分布を求め、この波長分布から含水率を推定する信号解析部と、を具備するものであることを特徴とする請求項１記載の光体毛成長調節装置。   The moisture content measuring unit receives a measurement light irradiating unit that irradiates light containing a wavelength component of 1300 nm or more and 2000 nm or less to the moisture content measuring target unit, and receives reflected light from the moisture content measuring target unit and converts it into an electrical signal. And a signal analyzing unit for analyzing the electrical signal from the light receiving element to obtain a wavelength distribution of the reflected light and estimating a moisture content from the wavelength distribution. The light hair growth control apparatus according to 1. 前記受光素子が２次元状に複数配置されたものであることを特徴とする請求項２に記載の光体毛成長調節装置。   The light body hair growth regulating apparatus according to claim 2, wherein a plurality of the light receiving elements are two-dimensionally arranged. 前記計測用光照射部及び受光素子に偏光フィルタを設けたことを特徴とする請求項２又は請求項３に記載の光体毛成長調節装置。   The optical hair growth control apparatus according to claim 2 or 3, wherein a polarizing filter is provided in the measurement light irradiation unit and the light receiving element.
JP2007014744A 2007-01-25 2007-01-25 Optical regulation apparatus for body hair growth Pending JP2008178572A (en)

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JP2007014744A JP2008178572A (en) 2007-01-25 2007-01-25 Optical regulation apparatus for body hair growth
KR1020097016848A KR20090110340A (en) 2007-01-25 2008-01-24 Optical body hair growth regulatng device
CN 200880003083 CN101600472A (en) 2007-01-25 2008-01-24 Optical body hair growth regulatng device
US12/524,357 US20100100159A1 (en) 2007-01-25 2008-01-24 Hair growth modulation device
RU2009131927/14A RU2406548C1 (en) 2007-01-25 2008-01-24 Device for hair growth regulation
EP08703811A EP2106824A4 (en) 2007-01-25 2008-01-24 Optical body hair growth regulating device
PCT/JP2008/050984 WO2008090953A1 (en) 2007-01-25 2008-01-24 Optical body hair growth regulatng device
TW097102803A TWI374763B (en) 2007-01-25 2008-01-25 Hair growth light management device

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