JPS643065Y2

JPS643065Y2 -

Info

Publication number: JPS643065Y2
Application number: JP1982122397U
Authority: JP
Priority date: 1982-08-11
Filing date: 1982-08-11
Publication date: 1989-01-26
Also published as: JPS5927449U

Description

【考案の詳細な説明】〔産業上の利用分野〕本考案は、人体の皮膚の脂量を測定するための
測定装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a measuring device for measuring the amount of fat in the skin of a human body.

[Conventional technology]

従来、この種の測定には、第１図に示すように
ケース１内のリール２に巻かれた長尺で半透明な
テープ状のプラスチツク膜３を、反射鏡４の前面
を通してケース１内の別のリール５を巻き取つて
テープの未使用部分を反射鏡４の前面に引き出し
てケース１から露出させ、この露出したプラスチ
ツク膜３を、被測定部である皮膚に押し当て、採
取した皮脂量を第２図に示すように、所定の角度
を持つて入射した光が、被測定プラスチツク膜を
透過して反射鏡で反射してきた反射量の程度によ
つて測定する測定装置が採用されていた（例えば
特開昭54−33095号公報、特開昭57−16358号公
報）。 Conventionally, for this type of measurement, as shown in FIG. Wind up another reel 5 and pull out the unused part of the tape to the front of the reflector 4 to expose it from the case 1.The exposed plastic film 3 is pressed against the skin to be measured, and the amount of sebum collected is As shown in Figure 2, a measuring device was used that measures the amount of light that is incident at a predetermined angle, passes through the plastic film being measured, and is reflected by a reflecting mirror. (For example, JP-A-54-33095, JP-A-57-16358).

このプラスチツク膜３は、皮膚に押し当てる片
面が微細な多数の凹凸のある艶消し面に形成さ
れ、このプラスチツク膜３の片面に皮脂が付着し
ていないときには、第３図に示すように前記入射
光は乱反射し、またこのプラスチツク膜３の片面
に皮脂が付着しているときには、第２図に示すよ
うに皮脂膜６が前記凹凸を覆うため、入射光が皮
脂膜６およびプラスチツク膜３を透過し、反射鏡
４で反射した後、再びプラスチツク膜３および皮
脂膜６を透過して空気中に反射光として図外の光
量検出器に入るようになつている。 This plastic film 3 is formed on one side that is pressed against the skin as a matte surface with a large number of fine irregularities. The incident light is diffusely reflected, and when sebum adheres to one side of the plastic film 3, the sebum film 6 covers the unevenness as shown in FIG. 2, so the incident light passes through the sebum film 6 and the plastic film 3. After being reflected by the reflecting mirror 4, the light passes through the plastic film 3 and the sebum film 6 again and enters a light amount detector (not shown) as reflected light into the air.

[Problem that the invention attempts to solve]

しかし、この従来の測定装置では、所定の角度
で光を空気、皮脂膜、プラスチツク膜の媒体中に
透過させ、反射鏡で反射させて、所定の角度で反
射光を得る構成であるため、その光路が複雑な構
成となり、測定誤差が生じ易く、特に鏡面とプラ
スチツク膜面の平行度がずれると、その誤差は大
きくなる欠点があつた。 However, this conventional measuring device has a configuration in which light is transmitted through a medium such as air, sebum film, or plastic film at a predetermined angle, and is reflected by a reflector to obtain reflected light at a predetermined angle. The optical path has a complicated configuration, which tends to cause measurement errors, and especially when the parallelism between the mirror surface and the plastic film surface deviates, the errors become large.

また従来のこの種の別の測定方法として、
OsO₄発色法が知られている。このOsO₄発色法は
皮脂成分中の不飽和二重結合との選択的な酸化反
応による黒色化を利用して、例えばガラスフアイ
バー性フイルターに付着した皮脂量を比色定量す
る方法で直接的に皮脂を測定する優れた方法であ
る。この方法については、文献〔石田昭雄日本
皮膚科学会雑誌 71巻、No.10、1047頁、1963年〕
に詳しい記述がある。 Another conventional measurement method of this type is
OsO ₄ color method is known. This OsO ₄ coloring method utilizes blackening caused by a selective oxidation reaction with unsaturated double bonds in sebum components, and can be used to directly quantify, for example, the amount of sebum attached to a glass fiber filter by colorimetry. It is an excellent way to measure sebum. Regarding this method, see the literature [Akio Ishida, Journal of the Japanese Dermatological Association, Vol. 71, No. 10, p. 1047, 1963].
There is a detailed description.

しかし、OsO₄（酸化オスミウム）は強力な酸化
作用を有するため、人体に対する刺激性が大き
く、眼、神経系統、皮膚等の損傷を引き起すこと
がある。米国連邦政府労働基準監督局の作業環境
基準として時間平均2μg／m³という値が示されて
いる。そのためその取扱いに際しては、十分な注
意と安全化対策を取らねばならない欠点があつ
た。 However, since OsO ₄ (osmium oxide) has a strong oxidizing effect, it is highly irritating to the human body and may cause damage to the eyes, nervous system, skin, etc. The working environment standard set by the US Federal Labor Standards Inspection Bureau is an hourly average value of 2 μg/m ³ . Therefore, when handling it, it has the disadvantage that sufficient care and safety measures must be taken.

本考案は、上記欠点を解消するもので、人体の
皮膚に付着する皮脂量を、より一層高い精度であ
りながら、簡便な構成で、かつ人体に損傷を与え
ずに安全に測定することができる皮脂量測定装置
を提供することを目的とする。 The present invention solves the above-mentioned drawbacks and makes it possible to safely measure the amount of sebum adhering to the human skin with higher accuracy, a simple configuration, and without causing damage to the human body. The purpose is to provide a sebum amount measuring device.

[Means for solving problems]

本考案は、微細な多数の凹凸のある面を採取面
として含み予めこの採取面を被測定皮膚に押し当
てこの採取面に上記皮膚から採取した皮脂量に応
じた皮脂膜が形成された光透過性の皮脂採取プレ
ートと、光源と、この光源から発せられ上記皮脂
採取プレートを透過する光を受光して電気信号に
変換する光電変換素子とを備えた皮脂量測定装置
において、上記皮脂採取プレートの凹凸面上から上記光源
の光を照射して１方向から１回だけ上記皮脂採取
プレートを透過させる配置手段を含み、上記皮脂
採取プレートの採取面の凹凸の各寸法はその凹部
の深さが0.2μｍ以上2.0μｍ以下であつて、その凸
部と凸部との間隔が10μｍ以上200μｍ以下である
ことを特徴とする。 The present invention includes a surface with many fine irregularities as a sampling surface, and this sampling surface is pressed against the skin to be measured in advance, and a sebum film is formed on this sampling surface according to the amount of sebum collected from the skin. A sebum amount measuring device comprising a sebum collection plate, a light source, and a photoelectric conversion element that receives light emitted from the light source and passes through the sebum collection plate and converts it into an electrical signal, the sebum amount measuring device comprising: It includes an arrangement means for irradiating light from the light source from above the uneven surface and transmitting the light from the sebum collecting plate only once from one direction, and each dimension of the unevenness on the collecting surface of the sebum collecting plate has a depth of 0.2. It is characterized in that the distance between the convex portions is 10 μm or more and 200 μm or less.

[Effect]

人体の分泌する最大皮脂量を想定した容積とな
るような凹凸面の採取面が形成された採取プレー
トに測定すべき皮脂を採取する。 Sebum to be measured is collected on a collection plate having a collection surface with an uneven surface having a volume that is based on the maximum amount of sebum secreted by the human body.

この採取プレートを光源とこれに対向する位置
にある受光素子からなる光学測定系に入れて採取
された皮脂による透過光量から皮脂量を測定す
る。 The collection plate is placed in an optical measurement system consisting of a light source and a light receiving element located opposite the light source, and the amount of sebum is measured from the amount of light transmitted by the collected sebum.

〔Example〕

以下実施例図面に基づいて本考案を説明する。 The present invention will be explained below based on the drawings.

第４図は本考案一実施例装置の要部平面図であ
る。第４図において、符号１０は皮脂採取プレー
トである。この皮脂採取プレート１０は光透過性
のプラスチツク製であつて、このプレート１０に
は被測定皮膚に押し当ててこの皮膚から皮脂を採
取する採取面１０ａを備える。この採取面１０ａ
には、第５図および第６図に示すように、微細な
多数の凹凸が形成される。この採取面１０ａの凹
凸は光源１１から光が照射されたときに照射光を
乱反射させるように、ランダムに方向性を有する
ことなく形成される。また凹凸の各寸法は、第６
図に示すように凹部の深さｄは、ｄ＝0.2〜2.0μ
ｍ、凸部と凸部との間隔ｗは、ｗ＝10〜200μｍ
に構成する。これらの数値は、人体の皮脂分泌量
が最大300μｇ／cm²／3Hrと考えられていることか
ら、その容積は皮脂の比重を0.9と仮定すれば、
333×10^-6cm³／cm²／3Hrとなることに基づいて設
定される。 FIG. 4 is a plan view of essential parts of an apparatus according to an embodiment of the present invention. In FIG. 4, reference numeral 10 is a sebum collection plate. This sebum collection plate 10 is made of light-transmissive plastic, and is provided with a collection surface 10a that is pressed against the skin to be measured to collect sebum from the skin. This sampling surface 10a
As shown in FIGS. 5 and 6, a large number of fine irregularities are formed on the surface. The irregularities on the sampling surface 10a are formed randomly without any directionality so that when the light is irradiated from the light source 11, the irradiated light is diffusely reflected. In addition, each dimension of the unevenness is determined by the sixth
As shown in the figure, the depth d of the recess is d=0.2~2.0μ
m, the distance w between the convex parts is w = 10 to 200 μm
Configure. These numbers are based on the fact that the human body's sebum secretion is thought to be a maximum of 300μg/cm ² /3Hr, so assuming that the specific gravity of sebum is 0.9, the volume is:
It is set based on 333×10 ^-6 cm ³ /cm ² /3Hr.

上記皮脂採取プレート１０は、光源１１の光が
採取面１０ａに照射されるように取付け板１２に
取付けられる。１３は光電変換素子であつて、皮
脂採取プレート１０を介して光源１１に対向す
る。 The sebum collection plate 10 is attached to the mounting plate 12 so that the light from the light source 11 is irradiated onto the collection surface 10a. Reference numeral 13 denotes a photoelectric conversion element, which faces the light source 11 via the sebum collection plate 10.

このような構成で、本実施例装置の使用方法を
説明する。まず測定を必要とする皮膚に皮脂採取
プレート１０の採取面１０ａを押し当て皮脂を採
取する。この皮脂を採取すると、第４図ｂに示す
ように採取面１０ａには、皮脂膜１４が凹凸を覆
うように形成される。この皮脂膜１４の厚みは採
取した皮脂量に応じて厚く形成される。 A method of using the apparatus of this embodiment with such a configuration will be explained. First, the collection surface 10a of the sebum collection plate 10 is pressed against the skin that requires measurement to collect sebum. When this sebum is collected, a sebum film 14 is formed on the collection surface 10a so as to cover the irregularities, as shown in FIG. 4b. The thickness of this sebum film 14 is increased depending on the amount of collected sebum.

次いで光源１１の光が照射されるように取付け
板１２にこのプレート１０を配設すると、この皮
脂膜１４の厚み、すなわち皮脂量に応じて光源１
１からの光がプレート１０を透過して光電変換素
子１３に入射する。この皮脂量が少ない場合に
は、採取面１０ａの凹凸に起因して照射光の乱反
射量が多くなり、プレート１０を透過する光は減
少して、光電変換素子１３には少量の光が入射す
る（第４図ａ）。またこの皮脂量が多い場合には、
皮脂膜１４が採取面１０ａの凹凸を平坦化するた
め、プレート１０を透過する光は増加して、光電
変換素子１３には多量の光が入射する。この光電
変換素子１３に入射した光は、電気信号に変換さ
れ図外の記録計に記録される。 Next, when this plate 10 is arranged on the mounting plate 12 so that the light from the light source 11 is irradiated, the light source 1
Light from 1 passes through plate 10 and enters photoelectric conversion element 13 . When the amount of sebum is small, the amount of diffused reflection of the irradiated light increases due to the unevenness of the sampling surface 10a, the amount of light transmitted through the plate 10 decreases, and a small amount of light enters the photoelectric conversion element 13. (Figure 4a). Also, if there is a large amount of sebum,
Since the sebum film 14 flattens the unevenness of the sampling surface 10a, the amount of light transmitted through the plate 10 increases, and a large amount of light enters the photoelectric conversion element 13. The light incident on the photoelectric conversion element 13 is converted into an electrical signal and recorded on a recorder (not shown).

第７図は同一箇所の皮膚の脂量を本考案の測定
法と前述した従来の精度の高いOsO₄発色法とに
より測定したときの相関図である。第７図におい
て、たて軸は本考案による入射光の透過度、よこ
軸はOsO₄発色法による590nｍにおける吸光度で
である。第７図の関係から両測定方法には、高い
相関があることが認められる。 FIG. 7 is a correlation diagram when the amount of skin oil in the same area is measured by the measuring method of the present invention and the conventional highly accurate OsO ₄ coloring method described above. In FIG. 7, the vertical axis is the transmittance of incident light according to the present invention, and the horizontal axis is the absorbance at 590 nm according to the OsO ₄ coloring method. From the relationship shown in FIG. 7, it is recognized that there is a high correlation between both measurement methods.

なお上記例では、皮脂採取プレート１０の材質
として、プラスチツクの例を示したが、光透過性
のあるものであれば、プラスチツクに限るもので
はない。 In the above example, the material of the sebum collection plate 10 is made of plastic, but the material is not limited to plastic as long as it is transparent to light.

[Effect of idea]

以上述べたように、本考案によれば、片面に人
体の最大分泌皮脂量を想定した容積の微細な多数
の凹凸が形成された光透過性のプレートに皮脂を
採取し、この凹凸面に光を照射して反射鏡を用い
ずにその透過光量を光電変換素子により測定して
その差から皮脂量を求めるように構成した。 As described above, according to the present invention, sebum is collected on a light-transmissive plate on which a large number of fine irregularities are formed on one side, and the irregular surface is exposed to light. is irradiated, the amount of transmitted light is measured by a photoelectric conversion element without using a reflecting mirror, and the amount of sebum is determined from the difference.

このため、採取プレートの凹凸面の１方向から
１回だけ透過した光を検出するので、反射鏡を用
いた場合に生ずる光路のずれによる測定誤差が大
きくなる欠点が解消して測定精度の低下がなくな
る。また反射鏡を設ける必要がないため、複雑な
光路構成をとることなく、簡単な光路構成で光の
透過量が精度よく得られる。そして、人体の皮膚
に付着する皮脂量を、より一層高い精度で、簡便
に、かつ安全に測定することができる優れた効果
がある。 Therefore, since the light that has passed through the uneven surface of the sampling plate only once from one direction is detected, the disadvantage of large measurement errors due to optical path deviations that occur when using a reflector is eliminated, and a decrease in measurement accuracy is avoided. It disappears. Further, since there is no need to provide a reflecting mirror, the amount of light transmitted can be obtained with high precision with a simple optical path configuration without requiring a complicated optical path configuration. Further, there is an excellent effect that the amount of sebum adhering to the skin of the human body can be measured easily and safely with even higher accuracy.

[Brief explanation of the drawing]

第１図は従来例測定装置の構成図。第２図およ
び第３図はその要部拡大平面図。第４図は本考案
一実施例測定装置の要部平面図。第５図はその要
部正面図。第６図は第４図の要部拡大平面図。第
７図は本考案一実施例測定装置の特性図。１０……皮脂採取プレート、１１……光源、１
２……取付け板、１３……光電変換素子。 FIG. 1 is a configuration diagram of a conventional measuring device. FIGS. 2 and 3 are enlarged plan views of the main parts thereof. FIG. 4 is a plan view of essential parts of a measuring device according to an embodiment of the present invention. Figure 5 is a front view of the main part. FIG. 6 is an enlarged plan view of the main part of FIG. 4. FIG. 7 is a characteristic diagram of a measuring device according to an embodiment of the present invention. 10...Sebum collection plate, 11...Light source, 1
2...Mounting plate, 13...Photoelectric conversion element.

Claims

[Scope of Claim for Utility Model Registration] Includes a surface with a large number of minute irregularities as a sampling surface. This sampling surface is pressed against the skin to be measured in advance, and a sebum film is formed on this sampling surface in accordance with the amount of sebum collected from the skin. A sebum amount measuring device comprising: a light-transmissive sebum collection plate, a light source, and a photoelectric conversion element that receives light emitted from the light source and passes through the sebum collection plate and converts it into an electrical signal; It includes an arrangement means for irradiating light from the light source onto the uneven surface of the sebum collecting plate and transmitting the light from the sebum collecting plate only once from one direction, and each dimension of the unevenness on the collecting surface of the sebum collecting plate is determined by The depth is 0.2 μm or more and 2.0 μm or less, and the interval between the convex portions is 10 μm or more and 200 μm.
A sebum amount measuring device characterized by the following: