WO2021039952A1 - Skin inspection device - Google Patents
Skin inspection device Download PDFInfo
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- WO2021039952A1 WO2021039952A1 PCT/JP2020/032535 JP2020032535W WO2021039952A1 WO 2021039952 A1 WO2021039952 A1 WO 2021039952A1 JP 2020032535 W JP2020032535 W JP 2020032535W WO 2021039952 A1 WO2021039952 A1 WO 2021039952A1
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- skin
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- optical system
- optical
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
Definitions
- the present invention relates to a skin inspection device that inspects the condition of the skin obtained by imaging the skin of a subject.
- Patent Documents 1 to 3 Since the inspection device using the microlens has a shallow depth of field, various techniques described in Patent Documents 1 to 3 are disclosed in order to increase the depth of field.
- Patent Document 4 is configured as a scope device having a large viewing window, and makes it possible to observe various images related to a display object located almost directly below the viewing window.
- the background technique described in Patent Document 5 is configured as a microscope system including an imaging optical system for imaging an observation object with a wide field of view and high resolution, and an illumination system for irradiating the observation object with illumination light.
- an imaging optical system for imaging an observation object with a wide field of view and high resolution and an illumination system for irradiating the observation object with illumination light.
- the depth of field is deepened, a large viewing window is formed, the subject's skin is captured as an image by the large viewing window, and the skin surface of this wide area is deeply photographed.
- the image of the skin can be detected at the depth of field, the subject's skin rises in the center of the opening from the large viewing window (opening part of the optical system) by close-up photography, and the peripheral end of the opening presses against the opening end face. Since a large height difference is generated between this raised portion and the peripheral end portion, there is a problem that even a deep depth of field cannot be dealt with.
- the present invention has been made to solve the above problems, and a wide imaging area on the skin surface of a subject is imaged with a large image circle, and the entire wide imaging area is imaged with high accuracy from the surface to the deep part of the skin. It is possible to adjust the depth of field without any particular focus adjustment, and it is an object of the present invention to provide a skin inspection device for inspecting the skin condition of a subject with high accuracy.
- the skin inspection device is a skin inspection device that images the skin of a subject and inspects the condition of the skin, wherein the skin contact means composed of a tubular body that abuts the tip portion against the skin of the subject and the above. Formed by an optical means formed by an optical system that shifts the position of the object focal point inside the tip of the tubular body of the skin contact means, and an imaging element that converts the light emitted from the optical means into an electric signal. It is provided with an imaging means to be performed.
- the tip portion of the tubular body of the skin contact means is brought into contact with the skin of the subject, and the contact is made by the optical means of the optical system in which the object focus is positioned inward from the tip portion.
- the optical means of the optical system in which the object focus is positioned inward from the tip portion.
- the skin inspection apparatus is formed by the optical means by shifting a part of the rear depth of field of the optical system from the tip of the skin contact means toward the subject side, if necessary. Is to be done.
- the skin formed inside the skin since a part of the rear depth of field of the optical system is shifted from the tip of the skin contacting means to the subject side, the skin formed inside the skin.
- the stains and the like can be included in the depth of field, and there is an effect that the condition of the skin can be inspected with high accuracy in the entire region of the subject's skin from the epidermis to the dermis.
- the image pickup means arranges an image pickup lens in front of the image pickup element and arranges the image pickup lens at the focal point in the optical system of the optical means, if necessary. is there.
- the image pickup lens is arranged in front of the image pickup element and the image pickup lens is arranged at the focal point in the optical system of the optical means, the light from the optical means can be spread over a wider angle.
- the image circle which is the opening of the tubular body of the skin contacting means, is formed to be large, the incident light can be effectively emitted to the image pickup element, which has the effect of improving the inspection accuracy of the subject's skin.
- the skin inspection apparatus is housed in a cylindrical skin contacting means 1 for bringing the tip portion 11 into contact with the skin of the subject 100 and a cylindrical body of the skin contacting means 1.
- An optical means 2 formed by an optical system 21 in which the position of the focal point 21a on the object side is shifted inward from the tip portion 11 of the cylindrical body and the tip portion 11 is included in the depth of field, and an optical means. It is configured to include an image pickup unit 3 formed of an image pickup element 31 that converts light emitted from 2 into an electric signal, and the image pickup element 31 is arranged at an image side focal point 21b of an optical system 21.
- the skin contact means 1 is an opening that includes at least 15 skin hills (average width 0.2 to 0.6 mm) of the subject 100 that are continuous in the opening radial direction at the opening width of the tip portion 11 of the tubular body. It consists of dimensions (about 13 m).
- the opening size (13 mm) of the tip 11 is the width of the skin hill (average 0.2 to 0.6 mm) and the depth of the skin groove (about 0.2 to 0.6 mm) in the skin of the subject 100 included in the image circle forming the tip 11. It is calculated as follows based on the width of the skin groove (about 0.2 mm) (0.2 to 0.3 mm).
- the skin of the subject 100 in this image circle can be imaged in a skin region in which at least 15 skin hills are continuous in the vertical and horizontal directions. It becomes.
- the skin of the subject 100 to which the tip portion 11 having such a large opening size (13 mm) abuts becomes a wide subject in a state where at least 15 skin hills are continuous in the image circle, and the skin of the skin. Since the subject is raised with the central portion as the apex, the height difference between the vicinity of the contact of the tip portion 11 and the central portion is wide in the range of the subject, and the height difference in this wide range is supported. The depth of field in the optical system 21 of the optical means 2 is required.
- At least 15 skin hills can be imaged as a continuous subject, and a large number of skin hills of the subject can be compared with each other, and the individual skins can be imaged by the imaging means 3 in the subsequent stage.
- the skin of the subject can be examined accurately and appropriately, including the balance of the entire skin hills.
- the aperture size is set to 13 mm in order to obtain a wide imaging range in a range in which at least 15 skin hills are continuous, but as another demonstration, a verification test is performed with a plurality of aperture dimensions. It was. As a result of this demonstration test, when the opening size is 15 mm or more, the subject's skin bumps become larger, and when the opening size is less than 10 mm, the subject's skin bumps are suppressed, but the number of continuous cohesive skin hills. There was a fact that I could't get enough.
- the conditions for satisfying this depth of field can be obtained as follows based on FIG. 1 (B).
- the premise for obtaining this condition is that the diameter of the image circle is 13 mm, the imaging distance is 70 mm, the FHD (full high definition) of the image sensor 31 is 2.8 ⁇ m ⁇ 2.8 ⁇ m pixels, and the allowable confusion circle is 5 ⁇ m (0.005 mm).
- the optical system 21 has an image distance of 10 mm, an F value of 5, an object distance of 60 mm, and an image pickup distance of 70 mm.
- the calculated depth of field of about 1.8 mm is optically designed so that the optical system 21 of the optical means 2 is shown as an embodiment arrangement in FIG. 3 with respect to the tip portion 11 of the skin contact means 1. That is, the depth of field (about 1.8 mm) of the optical system 21 is shifted 0.7 mm from the tip end 11 of the skin contact means 1 to the optical system 21 side to adjust the object focus 21a, and the front side cover is adjusted.
- the near point of the depth of field is located 1.6 mm closer to the optical system 21 than the tip 11, and the far point of the rear depth of field is located 0.2 mm closer to the subject 100 than the tip 11. ..
- the skin of the subject 100 which is in contact with the tip portion 11 and is greatly raised by a large opening, can be sufficiently included, and a sufficient solution is provided for the entire region of the skin having a height difference.
- the image range can be secured.
- the depth of field (about 1.8 mm) according to the present embodiment is set to 1.0 mm as the reference example 1 and the depth of field is set to 1.0 mm as the reference example 2.
- the case where the depth of field is 2.2 mm is shown.
- the raised central portion of the skin of the subject 100 can be aligned with the object focal point 21a and a clear image can be obtained with a sufficient amount of light, but the peripheral portion of the skin deviates from the far point of the posterior depth of field. Is slightly caused.
- the depth of field of the optical system 21 can be designed in a range of 1.0 mm to 2.2 mm (1.95 mm + 0.55 mm) as a limit value centered on 1.8 mm (1.6 mm + 0.2 mm). ..
- the optical system 21 of the optical means 2 forms an image of light from the skin of the subject 100 detected at a depth of field of 1.8 on the image-side focal point 21b, and an image pickup element arranged at the image-side focal point 21b. It is incident on 31.
- the image sensor 31 is formed with a width of 5.6 mm, and the diameter of the image circle 13 mm at the tip 11 of the skin contact means 1 is 1080 pixels (1 pixel is 12 ⁇ m. In the case of 720 pixels, the image sensor 31 is 720 pixels. 1 pixel is 18 ⁇ m.) Each of the incident lights is photoelectrically converted.
- the permissible circle of confusion of light incident on the image sensor 31 can be displayed at 1.79 pixels when the setting is 5 ⁇ m.
- the permissible circle of confusion is set to 5.8 ⁇ m, it can be expressed by 2 pixels, and it is 24 ⁇ m on the skin of the subject 100.
- the skin inspection apparatus can perform imaging of the image circle, which is a large close-up opening, with sufficient resolution for the entire skin region of the subject 100 having a height difference, and the image is captured.
- the light can be accurately converted into an electric signal and detected, and the skin condition of the subject can be inspected with high accuracy.
- the skin inspection apparatus according to another embodiment of the present invention will be described with reference to FIGS. 4 and 5.
- the skin inspection apparatus according to the present embodiment is configured to include skin contact means 1, optical means 2, and imaging means 3 in common with the embodiment shown in FIG. 1, and the optical means 2
- the illumination means 22, the polarizing plates 23 and 24 on the object side and the image side, the light diffusing plate 25 and the light shielding plate 26 are arranged after the optical system 21, and the imaging means 3 includes an imaging lens 32. ..
- each LED 22a and 22b are spaced apart from each other on the same plane about the optical axis of the optical system 21 of the optical means 2, and each of them is directed toward the tip portion 11 of the skin contact means 1. It is configured to emit irradiation light.
- a light diffusing plate 25 is arranged adjacent to each of the LEDs 22a and 22b in the emission direction, and the light diffusing plate 25 includes a circular opening 25a centered on the optical axis of the optical system 21. The light of each LED 22a and 22b is diffused by the diffusion portion 25b on the outer periphery of the above.
- the polarizing plate 23 on the object side is arranged adjacent to the polarizing plate 23 on the object side in the direction of emitting the diffused light by the light diffusing plate 25, and the polarizing plate 23 on the object side has a substantially circular opening centered on the optical axis of the optical system 21.
- a portion 23a is provided, and notches 23b are formed at three locations on the outer periphery of the opening 23a, and the three notches 23b are arranged so as to face the three LEDs 22a.
- the polarizing plate 23 emits only the diffused light from the four LEDs 22b to the subject 100 as linearly polarized light, and emits the diffused light from the other three LEDs 22a to the subject 100 without polarization, and also opens.
- the reflected light from the subject 100 is emitted from the unit 23a to the optical system 21 side.
- the image-side polarizing plate 24 is arranged between the back surface side of the illumination means 22 and the optical system 21, is formed in a substantially circular shape centered on the optical axis of the optical system 21, and has a substantially circular shape.
- the configuration is such that three protrusions 24a are provided at three locations on the outer periphery of the surface, and the polarizing plate 23 on the object side is polarized in a direction orthogonal to the polarization direction.
- any light reflected from the subject 100 based on the unpolarized irradiation light from the three LEDs 22a and the linearly polarized light irradiation from the four LEDs 22b is the polarizing plate 23 on the object side. It is polarized so as to be transmitted in a direction orthogonal to the polarization direction and is emitted to the optical system 21 side.
- the light-shielding plate 26 is interposed between the optical system 21 and the polarizing plate 24, has an opening 26a centered on the optical axis of the optical system 21, and is polarized by the polarizing plate 24 through the opening 26a. The light is emitted to the optical system 21.
- the light from the three LEDs 22a is diffused by the light diffusing plate 25 and then irradiated to the skin of the subject 100 without polarization.
- the light from the four LEDs 22b is diffused by the light diffusing plate 25 and then irradiated to the skin of the subject 100 as linearly polarized light by the polarizing plate 23.
- the unpolarized light irradiation from the LED 22a is used to detect the texture of the skin on the skin of the subject 100
- the linearly polarized light irradiation from the LED 22b is used to detect the skin spots on the skin of the subject 100.
- the optical system 21 captures the light from the skin of the subject 100 detected by the two types of irradiation light of unpolarized light and linearly polarized light under the same conditions such as the depth of field as in the embodiment shown in FIG.
- An image is formed at the center of the image pickup lens 32 in the means 3, and the image is incident on the image pickup element 31 from the image pickup lens 32.
- the image sensor 31 can photoelectrically convert the incident light and output it as an electric signal.
- the polarizing sheet of the portion cut out during the production of the polarizing plate 23 Since the internal dimensions of the opening 23a and the notch 23b of the polarizing plate 23 are formed to match the external dimensions of the polarizing plate 24, the polarizing sheet of the portion cut out during the production of the polarizing plate 23.
- the body can also be rotated 90 degrees to form the polarizing plate 24.
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Abstract
This skin inspection device is provided with: a cylindrical skin abutting means 1 for abutting a tip 11 against the skin of a subject; an optical means 2 that is stored in the cylindrical body of the skin abutting means 1, that shifts the position of an object-side focus point 21a inside the tip 11 of the cylindrical body, and that is formed by an optical system 21 including the tip 11 at a depth of field; and an imaging means 3 that is formed by an imaging element 31 for converting light emitted from the optical means 2 into an electrical signal and that is configured by disposing the imaging element 31 at the image-side focus point 21b of the optical system 21. A wide imaging region on the skin surface of the subject is imaged by a large image circle. It is possible to capture the wide imaging region with high accuracy over the entire region from the surface of the skin to a deep region. In particular, the depth of field can be adapted without adjusting the focus point at all, and the state of the skin of the subject can be inspected highly accurately.
Description
本発明は、被験者の皮膚を撮像した皮膚の状態を検査する皮膚検査装置に関する。
The present invention relates to a skin inspection device that inspects the condition of the skin obtained by imaging the skin of a subject.
従来、この種の皮膚検査装置は、スキンスコープ、マイクロスコープ等の製品名で多数存在し、いずれも接写用のマイクロレンズが用いられ、被写体となる被験者の皮膚を近距離から大きく撮像するように構成されていた。
Conventionally, there are many skin inspection devices of this type under product names such as skin scopes and microscopes, and all of them use a microlens for close-up photography so as to take a large image of the skin of the subject as a subject from a short distance. It was composed.
前記マイクロレンズを用いた検査装置は、被写界深度が浅いことから、この被写界深度を深くするため特許文献1ないし特許文献3に記載の各種の技術が開示されている。
Since the inspection device using the microlens has a shallow depth of field, various techniques described in Patent Documents 1 to 3 are disclosed in order to increase the depth of field.
また、特許文献4に記載される背景技術は、大きめの覗き窓を有するスコープ装置として構成され覗き窓のほぼ真下に位置する表示物と関連のある様々な像を観察可能としている。
Further, the background technique described in Patent Document 4 is configured as a scope device having a large viewing window, and makes it possible to observe various images related to a display object located almost directly below the viewing window.
さらに、特許文献5に記載の背景技術は、広視野且つ高解像度で観察対象を撮像する撮像光学系と、観察対象に照明光を照射する照明系を備える顕微鏡システムとして構成され、前記照明系を工夫することにより、皮膚表面の外側(表面)と内側を同時に直接的に観察できる。
Further, the background technique described in Patent Document 5 is configured as a microscope system including an imaging optical system for imaging an observation object with a wide field of view and high resolution, and an illumination system for irradiating the observation object with illumination light. By devising, the outside (surface) and inside of the skin surface can be directly observed at the same time.
しかしながら、前記各背景技術は、被写界深度を深くし、大きな覗き窓に構成して、大きな覗き窓で被験者の皮膚をより広い領域を画像として取り込み、この広い領域の皮膚表面を深い被写界深度で皮膚の画像を検出することができるものの、接写による大きな覗き窓(光学系の開口部分)から被験者の皮膚が開口中央で***すると共に、開口の周辺端部で開口端面に押圧状態となり、この***部分と周辺端部との間に大きな高低差が生じることから、深い被写界深度でも対応できないという課題を有する。
However, in each of the background techniques, the depth of field is deepened, a large viewing window is formed, the subject's skin is captured as an image by the large viewing window, and the skin surface of this wide area is deeply photographed. Although the image of the skin can be detected at the depth of field, the subject's skin rises in the center of the opening from the large viewing window (opening part of the optical system) by close-up photography, and the peripheral end of the opening presses against the opening end face. Since a large height difference is generated between this raised portion and the peripheral end portion, there is a problem that even a deep depth of field cannot be dealt with.
特に、被験者の皮膚内部に生じるシミ等の場合には、前記被写界深度でカバーする高低差がさらに大きくなり、皮膚の表面から深部までの撮像精度を十分に確保できないという課題を有していた。
In particular, in the case of spots or the like that occur inside the skin of the subject, the height difference covered by the depth of field becomes even larger, and there is a problem that sufficient imaging accuracy from the surface to the deep part of the skin cannot be ensured. It was.
本発明は前記課題を解消するためになされたもので、被験者の皮膚表面における広い撮像領域を大きなイメージサークルで撮像し、この広い撮像領域の全体に亘り皮膚の表面から深部までを高精度に撮像でき、特に焦点調節を一切行うことなく被写界深度を適合させることとなり、被験者の皮膚の状態を高精度に検査する皮膚検査装置を提供することを目的とする。
The present invention has been made to solve the above problems, and a wide imaging area on the skin surface of a subject is imaged with a large image circle, and the entire wide imaging area is imaged with high accuracy from the surface to the deep part of the skin. It is possible to adjust the depth of field without any particular focus adjustment, and it is an object of the present invention to provide a skin inspection device for inspecting the skin condition of a subject with high accuracy.
本発明に係る皮膚検査装置は、被験者の皮膚を撮像して皮膚の状態を検査する皮膚検査装置において、前記被験者の皮膚に先端部を当接させる筒状体からなる皮膚当接手段と、前記皮膚当接手段の筒状体における先端部より内側に物体焦点の位置を偏移させる光学系で形成される光学手段と、前記光学手段から射出される光を電気信号に変換する撮像素子で形成される撮像手段とを備えるものである。
The skin inspection device according to the present invention is a skin inspection device that images the skin of a subject and inspects the condition of the skin, wherein the skin contact means composed of a tubular body that abuts the tip portion against the skin of the subject and the above. Formed by an optical means formed by an optical system that shifts the position of the object focal point inside the tip of the tubular body of the skin contact means, and an imaging element that converts the light emitted from the optical means into an electric signal. It is provided with an imaging means to be performed.
このように本発明においては、被験者の皮膚に皮膚当接手段の筒状体における先端部を当接させ、この先端部より物体焦点を内側に位置させる光学系の光学手段で前記当接された被験者の皮膚を撮像し、この撮像により射出される光を撮像素子の撮像手段で電気信号に変換する構成により、皮膚当接手段の先端部に当接させることにより***した皮膚を中央頂点から周辺端部までの全領域に亘って被写界深度内にカバーできることとなり、高精度な画像で被験者の皮膚の状態を高精度に検査できる効果を奏する。
As described above, in the present invention, the tip portion of the tubular body of the skin contact means is brought into contact with the skin of the subject, and the contact is made by the optical means of the optical system in which the object focus is positioned inward from the tip portion. By imaging the skin of the subject and converting the light emitted by this imaging into an electrical signal by the imaging means of the image sensor, the raised skin is brought into contact with the tip of the skin contacting means from the central apex to the periphery. The entire area up to the edge can be covered within the depth of field, which has the effect of being able to inspect the skin condition of the subject with high precision images.
また、本発明に係る皮膚検査装置は必要に応じて、前記光学手段が、光学系の後側被写界深度の一部を前記皮膚当接手段の先端部より被験者側へ偏移させて形成されるものである。
Further, the skin inspection apparatus according to the present invention is formed by the optical means by shifting a part of the rear depth of field of the optical system from the tip of the skin contact means toward the subject side, if necessary. Is to be done.
このように本発明においては、光学系の後側被写界深度の一部を皮膚当接手段の先端部より被験者側へ偏移させて形成されることから、皮膚の内部に形成される肌のシミ等を被写界深度内に含めることができることとなり、被験者の皮膚における表皮から真皮に亘る全領域で皮膚の状態を高精度に検査できる効果を有する。
As described above, in the present invention, since a part of the rear depth of field of the optical system is shifted from the tip of the skin contacting means to the subject side, the skin formed inside the skin. The stains and the like can be included in the depth of field, and there is an effect that the condition of the skin can be inspected with high accuracy in the entire region of the subject's skin from the epidermis to the dermis.
また、本発明に係る皮膚検査装置は必要に応じて、前記撮像手段が、撮像素子の前段に撮像レンズを配設し、当該撮像レンズを前記光学手段の光学系における焦点に配設するものである。
Further, in the skin inspection apparatus according to the present invention, the image pickup means arranges an image pickup lens in front of the image pickup element and arranges the image pickup lens at the focal point in the optical system of the optical means, if necessary. is there.
このように本発明においては、撮像素子の前段に撮像レンズを配設し、当該撮像レンズを光学手段の光学系における焦点に配設するように構成したので、より広角に光学手段からの光を入射できることとなり、特に皮膚当接手段の筒状体開口であるイメージサークルを大きく形成した場合に有効に入射光を撮像素子に射出できることとなり、被験者の皮膚の検査精度を向上させる効果を有する。
As described above, in the present invention, since the image pickup lens is arranged in front of the image pickup element and the image pickup lens is arranged at the focal point in the optical system of the optical means, the light from the optical means can be spread over a wider angle. In particular, when the image circle, which is the opening of the tubular body of the skin contacting means, is formed to be large, the incident light can be effectively emitted to the image pickup element, which has the effect of improving the inspection accuracy of the subject's skin.
(本発明の一実施形態)
以下、本発明の一実施形態に係る皮膚検査装置を図1ないし図3に基づいて説明する。
前記各図において本実施形態に係る皮膚検査装置は、被験者100の皮膚に先端部11を当接させる円筒状からなる皮膚当接手段1と、この皮膚当接手段1の円筒状体に収納され、この円筒状体の先端部11より内側に物体側焦点21aの位置を偏移させ、この先端部11を被写界深度に含む光学系21で形成される光学手段2と、こお光学手段2から射出される光を電気信号に変換する撮像素子31で形成され、この撮像素子31を光学系21の像側焦点21bに配設してなる撮像手段3とを備える構成である。 (One Embodiment of the present invention)
Hereinafter, the skin inspection apparatus according to the embodiment of the present invention will be described with reference to FIGS. 1 to 3.
In each of the above figures, the skin inspection apparatus according to the present embodiment is housed in a cylindrical skin contacting means 1 for bringing thetip portion 11 into contact with the skin of the subject 100 and a cylindrical body of the skin contacting means 1. An optical means 2 formed by an optical system 21 in which the position of the focal point 21a on the object side is shifted inward from the tip portion 11 of the cylindrical body and the tip portion 11 is included in the depth of field, and an optical means. It is configured to include an image pickup unit 3 formed of an image pickup element 31 that converts light emitted from 2 into an electric signal, and the image pickup element 31 is arranged at an image side focal point 21b of an optical system 21.
以下、本発明の一実施形態に係る皮膚検査装置を図1ないし図3に基づいて説明する。
前記各図において本実施形態に係る皮膚検査装置は、被験者100の皮膚に先端部11を当接させる円筒状からなる皮膚当接手段1と、この皮膚当接手段1の円筒状体に収納され、この円筒状体の先端部11より内側に物体側焦点21aの位置を偏移させ、この先端部11を被写界深度に含む光学系21で形成される光学手段2と、こお光学手段2から射出される光を電気信号に変換する撮像素子31で形成され、この撮像素子31を光学系21の像側焦点21bに配設してなる撮像手段3とを備える構成である。 (One Embodiment of the present invention)
Hereinafter, the skin inspection apparatus according to the embodiment of the present invention will be described with reference to FIGS. 1 to 3.
In each of the above figures, the skin inspection apparatus according to the present embodiment is housed in a cylindrical skin contacting means 1 for bringing the
前記皮膚当接手段1は、筒状体の先端部11の開口幅で開口径方向に連続する少なくとも15の被験者100の皮膚の皮丘(平均幅0.2~0.6mm)を包含する開口寸法(約13m)で構成される。この先端部11の開口寸法(13mm)は、先端部11を形成するイメージサークルに含まれる被験者100の皮膚における皮丘の幅(平均0.2~0.6mm)、皮溝の深さ(約0.2~0.3mm)、皮溝の幅(約0.2mm)により下記の通り算出される。
The skin contact means 1 is an opening that includes at least 15 skin hills (average width 0.2 to 0.6 mm) of the subject 100 that are continuous in the opening radial direction at the opening width of the tip portion 11 of the tubular body. It consists of dimensions (about 13 m). The opening size (13 mm) of the tip 11 is the width of the skin hill (average 0.2 to 0.6 mm) and the depth of the skin groove (about 0.2 to 0.6 mm) in the skin of the subject 100 included in the image circle forming the tip 11. It is calculated as follows based on the width of the skin groove (about 0.2 mm) (0.2 to 0.3 mm).
開口寸法13mm≒15×(0.6+0.2)=12mm
このイメージサークル内の被験者100の皮膚は、図2(A),(B),(C)に示すように縦・横に少なくとも15の皮丘を連続する皮膚領域を撮像対象とすることができることとなる。 Aperture size 13 mm ≒ 15 x (0.6 + 0.2) = 12 mm
As shown in FIGS. 2A, 2B, and 2C, the skin of thesubject 100 in this image circle can be imaged in a skin region in which at least 15 skin hills are continuous in the vertical and horizontal directions. It becomes.
このイメージサークル内の被験者100の皮膚は、図2(A),(B),(C)に示すように縦・横に少なくとも15の皮丘を連続する皮膚領域を撮像対象とすることができることとなる。 Aperture size 13 mm ≒ 15 x (0.6 + 0.2) = 12 mm
As shown in FIGS. 2A, 2B, and 2C, the skin of the
このような大きな開口寸法(13mm)の先端部11が当接した被験者100の皮膚は、イメージサークル内に皮膚の皮丘が少なくとも15個を連続させた状態の広い被写体となると共に、この皮膚の中央部分を頂点として***した被写体を対象とすることから、先端部11の当接近傍と中央部分との間で高低差が広い被写体の範囲で生じることとなり、この広い範囲の高低差に対応する前記光学手段2の光学系21における被写界深度が要求されることとなる。
The skin of the subject 100 to which the tip portion 11 having such a large opening size (13 mm) abuts becomes a wide subject in a state where at least 15 skin hills are continuous in the image circle, and the skin of the skin. Since the subject is raised with the central portion as the apex, the height difference between the vicinity of the contact of the tip portion 11 and the central portion is wide in the range of the subject, and the height difference in this wide range is supported. The depth of field in the optical system 21 of the optical means 2 is required.
この光学系21による広い範囲の撮像は、皮膚の皮丘が少なくとも15個連続する被写体として撮像でき、被験者のまとまった多数の皮丘を相互に対比できることとなり、後段の撮像手段3で個々の皮丘の判断に加えて複数の皮丘全体のバランスを含めて被験者の皮膚を精密且つ適正に検査できることとなる。
In the wide-range imaging by the optical system 21, at least 15 skin hills can be imaged as a continuous subject, and a large number of skin hills of the subject can be compared with each other, and the individual skins can be imaged by the imaging means 3 in the subsequent stage. In addition to judging the hills, the skin of the subject can be examined accurately and appropriately, including the balance of the entire skin hills.
なお、本実施形態においては、皮丘の数を少なくとも15個連続させた範囲で広い撮像範囲とするために開口寸法を13mmとしたが、他の実証として、複数の開口寸法において実証試験を行った。
この実証試験の結果、開口寸法15mm以上の場合は、被験者の皮膚の***がさらに大きくなり、また開口寸法10mm未満の場合は被験者の皮膚の***が抑制されるものの連続するまとまった皮丘の数量が十分得られないという実情があった。このような実情から、被験者のまとまった多数の皮丘(少なくとも15個以上)を一度に観察することを目的とする肌検査装置においては、その開口寸法を10mm以上15mm未満とすることが有効との知見を得て、本実施形態においては最も望ましい13mmに特定することとした。 In the present embodiment, the aperture size is set to 13 mm in order to obtain a wide imaging range in a range in which at least 15 skin hills are continuous, but as another demonstration, a verification test is performed with a plurality of aperture dimensions. It was.
As a result of this demonstration test, when the opening size is 15 mm or more, the subject's skin bumps become larger, and when the opening size is less than 10 mm, the subject's skin bumps are suppressed, but the number of continuous cohesive skin hills. There was a fact that I couldn't get enough. From such a situation, it is effective to set the opening size to 10 mm or more and less than 15 mm in a skin inspection device for the purpose of observing a large number of skin hills (at least 15 or more) of a subject at a time. Based on the above findings, it was decided to specify the most desirable 13 mm in this embodiment.
この実証試験の結果、開口寸法15mm以上の場合は、被験者の皮膚の***がさらに大きくなり、また開口寸法10mm未満の場合は被験者の皮膚の***が抑制されるものの連続するまとまった皮丘の数量が十分得られないという実情があった。このような実情から、被験者のまとまった多数の皮丘(少なくとも15個以上)を一度に観察することを目的とする肌検査装置においては、その開口寸法を10mm以上15mm未満とすることが有効との知見を得て、本実施形態においては最も望ましい13mmに特定することとした。 In the present embodiment, the aperture size is set to 13 mm in order to obtain a wide imaging range in a range in which at least 15 skin hills are continuous, but as another demonstration, a verification test is performed with a plurality of aperture dimensions. It was.
As a result of this demonstration test, when the opening size is 15 mm or more, the subject's skin bumps become larger, and when the opening size is less than 10 mm, the subject's skin bumps are suppressed, but the number of continuous cohesive skin hills. There was a fact that I couldn't get enough. From such a situation, it is effective to set the opening size to 10 mm or more and less than 15 mm in a skin inspection device for the purpose of observing a large number of skin hills (at least 15 or more) of a subject at a time. Based on the above findings, it was decided to specify the most desirable 13 mm in this embodiment.
この被写界深度を満足する条件は、図1(B)に基づいて以下の通り求めることができる。この条件を求める前提は、イメージサークルの直径が13mm、撮像距離が70mm、撮像素子31のFHD(full high definition)が2.8μm×2.8μmピクセル、且つ5μm(0.005mm)の許容錯乱円、光学系21が像距離10mm・F値5・物体距離60mm・撮像距離70mmとする。
The conditions for satisfying this depth of field can be obtained as follows based on FIG. 1 (B). The premise for obtaining this condition is that the diameter of the image circle is 13 mm, the imaging distance is 70 mm, the FHD (full high definition) of the image sensor 31 is 2.8 μm × 2.8 μm pixels, and the allowable confusion circle is 5 μm (0.005 mm). The optical system 21 has an image distance of 10 mm, an F value of 5, an object distance of 60 mm, and an image pickup distance of 70 mm.
前記算出した被写界深度約1.8mmは、皮膚当接手段1の先端部11に対して光学手段2の光学系21を図3中の実施例配置として示すように光学設計される。即ち、前記光学系21の被写界深度(約1.8mm)は、皮膚当接手段1の先端部11より光学系21側に0.7mm偏移して物体焦点21aが調整され、前側被写界深度の近点が先端部11より光学系21側に1.6mmに位置し、後側被写界深度の遠点が先端部11より被験者100側に0.2mmに位置する態様となる。
The calculated depth of field of about 1.8 mm is optically designed so that the optical system 21 of the optical means 2 is shown as an embodiment arrangement in FIG. 3 with respect to the tip portion 11 of the skin contact means 1. That is, the depth of field (about 1.8 mm) of the optical system 21 is shifted 0.7 mm from the tip end 11 of the skin contact means 1 to the optical system 21 side to adjust the object focus 21a, and the front side cover is adjusted. The near point of the depth of field is located 1.6 mm closer to the optical system 21 than the tip 11, and the far point of the rear depth of field is located 0.2 mm closer to the subject 100 than the tip 11. ..
このような被写界深度の配置態様により、先端部11に当接して大きな開口により大きく***した被験者100の皮膚を十分に包含できることとなり、高低差を有する皮膚の全領域に対して十分な解像範囲を確保できることとなる。
With such an arrangement of the depth of field, the skin of the subject 100, which is in contact with the tip portion 11 and is greatly raised by a large opening, can be sufficiently included, and a sufficient solution is provided for the entire region of the skin having a height difference. The image range can be secured.
なお、前記図3に各々示すように、本実施形態に係る被写界深度(約1.8mm)に対して参考例1として被写界深度を1.0mmとした場合と、参考例2として被写界深度を2.2mmとした場合を示す。前記参考例1の場合は、被験者100の***する皮膚中央部分を物体焦点21aに一致させて十分な光量で鮮明に撮像できるが、皮膚周辺部分が後側被写界深度の遠点から外れる部分を若干生じさせている。また、参考例2の場合は被験者100の***する皮膚の中央部分から周辺部分まで全領域に亘って包含させることができるものの、被写界深度の近点及び遠点近傍で皮膚の表皮又は真皮が存在しない部分も包含することとなっている。従って、光学系21の被写界深度は、1.8mm(1.6mm+0.2mm)を中心として1.0mmから2.2mm(1.95mm+0.55mm)を限界値とする範囲で設計できることとなる。
As shown in FIG. 3, the depth of field (about 1.8 mm) according to the present embodiment is set to 1.0 mm as the reference example 1 and the depth of field is set to 1.0 mm as the reference example 2. The case where the depth of field is 2.2 mm is shown. In the case of Reference Example 1, the raised central portion of the skin of the subject 100 can be aligned with the object focal point 21a and a clear image can be obtained with a sufficient amount of light, but the peripheral portion of the skin deviates from the far point of the posterior depth of field. Is slightly caused. Further, in the case of Reference Example 2, although the entire region can be included from the central portion to the peripheral portion of the raised skin of the subject 100, the epidermis or dermis of the skin is included near the near and far points of the depth of field. It is supposed to include the part where does not exist. Therefore, the depth of field of the optical system 21 can be designed in a range of 1.0 mm to 2.2 mm (1.95 mm + 0.55 mm) as a limit value centered on 1.8 mm (1.6 mm + 0.2 mm). ..
前記光学手段2の光学系21は、被写界深度1.8で検出される被験者100の皮膚からの光を像側焦点21bに結像させ、この像側焦点21bに配設される撮像素子31に入射させる。この撮像素子31は、5.6mmの幅で形成され、前記皮膚当接手段1の先端部11におけるイメージサークルの直径13mmを1080ピクセル(1ピクセルが12μmとする。なお、720ピクセルの場合は、1ピクセルが18μmとなる。)で前記入射した光を各々光電変換する。
The optical system 21 of the optical means 2 forms an image of light from the skin of the subject 100 detected at a depth of field of 1.8 on the image-side focal point 21b, and an image pickup element arranged at the image-side focal point 21b. It is incident on 31. The image sensor 31 is formed with a width of 5.6 mm, and the diameter of the image circle 13 mm at the tip 11 of the skin contact means 1 is 1080 pixels (1 pixel is 12 μm. In the case of 720 pixels, the image sensor 31 is 720 pixels. 1 pixel is 18 μm.) Each of the incident lights is photoelectrically converted.
この撮像素子31に入射する光の許容錯乱円は、前記設定の5μmの場合に1.79ピクセルで表示できる。なお、前記許容錯乱円が5.8μmと設定した場合には、2ピクセルで表現でき、被験者100の皮膚では24μmとなる。
The permissible circle of confusion of light incident on the image sensor 31 can be displayed at 1.79 pixels when the setting is 5 μm. When the permissible circle of confusion is set to 5.8 μm, it can be expressed by 2 pixels, and it is 24 μm on the skin of the subject 100.
以上のように本実施形態に係る皮膚検査装置は、大きな接写開口部となるイメージサークルの撮像を高低差を有する被験者100の皮膚全領域に対して十分な解像度で実行できると共に、この撮像された光を正確に電気信号に変換して検出でき、被験者の皮膚の状態を高精度に検査できることとなる。
As described above, the skin inspection apparatus according to the present embodiment can perform imaging of the image circle, which is a large close-up opening, with sufficient resolution for the entire skin region of the subject 100 having a height difference, and the image is captured. The light can be accurately converted into an electric signal and detected, and the skin condition of the subject can be inspected with high accuracy.
(本発明の他の実施形態)
本発明の他の実施形態に係る皮膚検査装置を図4及び図5に基づいて説明する。
各図において本実施形態に係る皮膚検査装置は、前記図1に記載の一実施形態と共通して皮膚当接手段1、光学手段2、撮像手段3を備えて構成され、前記光学手段2が光学系21の後段に照明手段22、物体側及び像側の各偏光板23,24、光拡散板25及び遮光板26を配設され、また前記撮像手段3が撮像レンズ32を備える構成である。 (Other Embodiments of the present invention)
The skin inspection apparatus according to another embodiment of the present invention will be described with reference to FIGS. 4 and 5.
In each figure, the skin inspection apparatus according to the present embodiment is configured to include skin contact means 1,optical means 2, and imaging means 3 in common with the embodiment shown in FIG. 1, and the optical means 2 The illumination means 22, the polarizing plates 23 and 24 on the object side and the image side, the light diffusing plate 25 and the light shielding plate 26 are arranged after the optical system 21, and the imaging means 3 includes an imaging lens 32. ..
本発明の他の実施形態に係る皮膚検査装置を図4及び図5に基づいて説明する。
各図において本実施形態に係る皮膚検査装置は、前記図1に記載の一実施形態と共通して皮膚当接手段1、光学手段2、撮像手段3を備えて構成され、前記光学手段2が光学系21の後段に照明手段22、物体側及び像側の各偏光板23,24、光拡散板25及び遮光板26を配設され、また前記撮像手段3が撮像レンズ32を備える構成である。 (Other Embodiments of the present invention)
The skin inspection apparatus according to another embodiment of the present invention will be described with reference to FIGS. 4 and 5.
In each figure, the skin inspection apparatus according to the present embodiment is configured to include skin contact means 1,
前記照明手段22は、光学手段2の光学系21における光軸を中心として同一平面上に7個のLED22a、22bが離隔して配設され、各々が皮膚当接手段1の先端部11方向へ照射光を射出する構成である。この各LED22a、22bの射出方向に光拡散板25が隣接して配設され、この光拡散板25は前記光学系21の光軸を中心に円形の開口部25aを備え、この光拡散板25の外周の拡散部分25bで各LED22a、22bの光を拡散する構成である。
In the lighting means 22, seven LEDs 22a and 22b are spaced apart from each other on the same plane about the optical axis of the optical system 21 of the optical means 2, and each of them is directed toward the tip portion 11 of the skin contact means 1. It is configured to emit irradiation light. A light diffusing plate 25 is arranged adjacent to each of the LEDs 22a and 22b in the emission direction, and the light diffusing plate 25 includes a circular opening 25a centered on the optical axis of the optical system 21. The light of each LED 22a and 22b is diffused by the diffusion portion 25b on the outer periphery of the above.
この光拡散板25による拡散光を射出する方向に物体側の偏光板23が隣接して配設され、この物体側の偏光板23は、光学系21の光軸を中心とする略円形の開口部23aを備え、この開口部23aの外周3個所に切欠き部23bが形成されてこの3つの切欠き部23bを前記三つのLED22aに対向させて配設する構成である。また、この偏光板23は、前記4つのLED22bからの拡散光のみを直線偏光として被験者100へ射出すると共に、他の3つのLED22aからの拡散光を無偏光で被験者100へ射出し、また、開口部23aから被験者100からの反射光を光学系21側へ射出することとなる。
The polarizing plate 23 on the object side is arranged adjacent to the polarizing plate 23 on the object side in the direction of emitting the diffused light by the light diffusing plate 25, and the polarizing plate 23 on the object side has a substantially circular opening centered on the optical axis of the optical system 21. A portion 23a is provided, and notches 23b are formed at three locations on the outer periphery of the opening 23a, and the three notches 23b are arranged so as to face the three LEDs 22a. Further, the polarizing plate 23 emits only the diffused light from the four LEDs 22b to the subject 100 as linearly polarized light, and emits the diffused light from the other three LEDs 22a to the subject 100 without polarization, and also opens. The reflected light from the subject 100 is emitted from the unit 23a to the optical system 21 side.
前記像側の偏光板24は、照明手段22の背面側と光学系21との間に配設され、光学系21の光軸を中心とする略円形状に形成されると共に、この略円形状の外周3個所に3つの突起部24aを備え、前記物体側の偏光板23の偏光方向と直交する方向に偏光させる構成である。この偏光板24は、前記3つのLED22aからの無偏光による照射光及び4つのLED22bからの直線偏光による照射光に基づいて被験者100からの反射されるいずれの光も前記物体側の偏光板23の偏光方向と直交する方向で透過するように偏光して光学系21側へ射出する。
The image-side polarizing plate 24 is arranged between the back surface side of the illumination means 22 and the optical system 21, is formed in a substantially circular shape centered on the optical axis of the optical system 21, and has a substantially circular shape. The configuration is such that three protrusions 24a are provided at three locations on the outer periphery of the surface, and the polarizing plate 23 on the object side is polarized in a direction orthogonal to the polarization direction. In the polarizing plate 24, any light reflected from the subject 100 based on the unpolarized irradiation light from the three LEDs 22a and the linearly polarized light irradiation from the four LEDs 22b is the polarizing plate 23 on the object side. It is polarized so as to be transmitted in a direction orthogonal to the polarization direction and is emitted to the optical system 21 side.
前記遮光板26は、光学系21と偏光板24との間に介装され、光学系21の光軸を中心とする開口部26aを備え、この開口部26aを介して偏光板24で偏光された光を光学系21へ射出する構成である。
The light-shielding plate 26 is interposed between the optical system 21 and the polarizing plate 24, has an opening 26a centered on the optical axis of the optical system 21, and is polarized by the polarizing plate 24 through the opening 26a. The light is emitted to the optical system 21.
このように構成された本実施形態においては、7つのLED22a、22bで発光される光のうち、3つのLED22aからの光を光拡散板25で拡散した後に無偏光で被験者100の皮膚に照射し、他方4つのLED22bからの光を光拡散板25で拡散した後に偏光板23で直線偏光として被験者100の皮膚に照射する。このLED22aからの無偏光の照射は被験者100の皮膚における肌のキメを検出するために用いられ、LED22bからの直線偏光の照射は被験者100の皮膚における肌のシミを検出するために用いられる。
In the present embodiment configured as described above, of the lights emitted by the seven LEDs 22a and 22b, the light from the three LEDs 22a is diffused by the light diffusing plate 25 and then irradiated to the skin of the subject 100 without polarization. On the other hand, the light from the four LEDs 22b is diffused by the light diffusing plate 25 and then irradiated to the skin of the subject 100 as linearly polarized light by the polarizing plate 23. The unpolarized light irradiation from the LED 22a is used to detect the texture of the skin on the skin of the subject 100, and the linearly polarized light irradiation from the LED 22b is used to detect the skin spots on the skin of the subject 100.
前記無偏光と直線偏光との二種類の照射光により検出される被験者100の皮膚からの光を、前記図1記載の一実施例と同様の被写界深度等の条件で光学系21が撮像手段3における撮像レンズ32の中心に結像させ、この撮像レンズ32から撮像素子31へ入射される。この入射された光を撮像素子31が光電変換して電気信号として出力できることとなる。
The optical system 21 captures the light from the skin of the subject 100 detected by the two types of irradiation light of unpolarized light and linearly polarized light under the same conditions such as the depth of field as in the embodiment shown in FIG. An image is formed at the center of the image pickup lens 32 in the means 3, and the image is incident on the image pickup element 31 from the image pickup lens 32. The image sensor 31 can photoelectrically convert the incident light and output it as an electric signal.
なお、前記偏光板23の開口部23a及び切欠き部23bの内形寸法は偏光板24の外形寸法に一致させて形成していることから、偏光板23の製作時に切抜かれた部分の偏光シート体を90度回転させて偏光板24として形成することもできる。
Since the internal dimensions of the opening 23a and the notch 23b of the polarizing plate 23 are formed to match the external dimensions of the polarizing plate 24, the polarizing sheet of the portion cut out during the production of the polarizing plate 23. The body can also be rotated 90 degrees to form the polarizing plate 24.
1 皮膚当接手段
2 光学手段
3 撮像手段
11 先端部
21 光学系
21a 物体焦点
22 照明手段
22a,22b LED
23 偏光板
23a 開口部
23b 切欠き部
24 偏光板
25 光拡散板
26 遮光板
26a 開口部
31 撮像素子
32 撮像レンズ 1 Skin contact means 2 Optical means 3 Imaging means 11Tip part 21 Optical system 21a Object focus 22 Lighting means 22a, 22b LED
23Polarizing plate 23a Opening 23b Notch 24 Polarizing plate 25 Light diffusing plate 26 Shading plate 26a Opening 31 Image sensor 32 Image sensor
2 光学手段
3 撮像手段
11 先端部
21 光学系
21a 物体焦点
22 照明手段
22a,22b LED
23 偏光板
23a 開口部
23b 切欠き部
24 偏光板
25 光拡散板
26 遮光板
26a 開口部
31 撮像素子
32 撮像レンズ 1 Skin contact means 2 Optical means 3 Imaging means 11
23
Claims (3)
- 被験者の皮膚を撮像して皮膚の状態を検査する皮膚検査装置において、
前記被験者の皮膚に先端部を当接させる筒状体からなる皮膚当接手段と、
前記皮膚当接手段の筒状体における先端部より内側に物体焦点の位置を偏移させる光学系で形成される光学手段と、
前記光学手段から射出される光を電気信号に変換する撮像素子で形成される撮像手段とを備えることを
特徴とする皮膚検査装置。 In a skin inspection device that images the skin of a subject and inspects the condition of the skin
A skin contacting means composed of a tubular body whose tip is brought into contact with the skin of the subject,
An optical means formed by an optical system that shifts the position of the object focal point inward from the tip of the tubular body of the skin contact means.
A skin inspection apparatus including an image pickup means formed by an image pickup element that converts light emitted from the optical means into an electric signal. - 前記請求項1に記載の皮膚検査装置において、
前記光学手段が、光学系の後側被写界深度の一部を前記皮膚当接手段の先端部より被験者側へ偏移させて形成されることを
特徴とする皮膚検査装置。 In the skin inspection apparatus according to claim 1,
A skin inspection apparatus, characterized in that the optical means is formed by shifting a part of the rear depth of field of the optical system from the tip end portion of the skin contact means toward the subject side. - 前記請求項1または2に記載の皮膚検査装置において、
前記撮像手段が、撮像素子の前段に撮像レンズを配設し、当該撮像レンズを前記光学手段の光学系における焦点に配設することを
特徴とする皮膚検査装置。 In the skin inspection apparatus according to claim 1 or 2,
A skin inspection apparatus characterized in that the image pickup means arranges an image pickup lens in front of an image pickup element and arranges the image pickup lens at a focal point in the optical system of the optical means.
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WO2006049192A1 (en) * | 2004-11-05 | 2006-05-11 | Ya-Man Ltd. | Skin treatment apparatus |
JP2008015033A (en) * | 2006-07-03 | 2008-01-24 | Moritex Corp | Magnification imaging apparatus |
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JP5614256B2 (en) | 2010-11-18 | 2014-10-29 | 富士通株式会社 | Imaging apparatus, image processing apparatus, and imaging method |
JP2012253602A (en) | 2011-06-03 | 2012-12-20 | Nikon Corp | Imaging optical system and imaging apparatus |
JP2016039471A (en) | 2014-08-07 | 2016-03-22 | 日立マクセル株式会社 | Conversion lens unit and imaging system |
JP2019041995A (en) | 2017-08-31 | 2019-03-22 | 株式会社タカラトミー | Scope device |
JP7346012B2 (en) | 2017-11-29 | 2023-09-19 | 花王株式会社 | Skin observation method |
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WO2006049192A1 (en) * | 2004-11-05 | 2006-05-11 | Ya-Man Ltd. | Skin treatment apparatus |
JP2008015033A (en) * | 2006-07-03 | 2008-01-24 | Moritex Corp | Magnification imaging apparatus |
JP2013236758A (en) * | 2012-05-15 | 2013-11-28 | Sony Corp | Information processor, information processing method, program and information processing system |
JP2015169839A (en) * | 2014-03-07 | 2015-09-28 | ポーラ化成工業株式会社 | Imaging unit and imaging apparatus |
JP2019015774A (en) * | 2017-07-04 | 2019-01-31 | Goko映像機器株式会社 | Head, microscope, and method for observation |
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