Electric razor

Abstract

To suppress damage to skin during shaving.SOLUTION: An electric shaver 100 includes a first imaging device 131 for imaging periphery of skin contacted by a shaving part 121, an image processing device 150 for processing an image obtained from the first imaging device 131, and a notification device 140 for notifying a user of a processing result, wherein the image processing device 150 includes a property information generation part 151 for generating property information indicating property of hair or skin on the basis of the acquired image, a shaving information generation part 152 for generating shaving information on shaving on the basis of the property information, and a result notification part 153 for controlling the notification device 140, and notifying a user of the shaving information.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an electric shaver for cutting body hair such as facial hair. [Background technology]

[0002] Conventionally, a shaving guidance system has been proposed that includes an imaging device that records images of a user's body part, and that determines the local hair growth direction based on the captured image, and instructs the user in the direction and location in which a shaving device should be moved on the body based on the determined hair growth direction (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2016-534806 Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional systems are only capable of recognizing the direction and location of shaving, and are not able to provide instructions for the optimal shaving condition that reduces damage to the skin.

[0005] The present invention has been made in consideration of the above-mentioned problems, and has an object to provide an electric shaver that can inform a user of instructions to reduce damage to the skin. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, one aspect of the present invention is an electric razor comprising a handle portion held by a user and a head portion having a shaving portion for cutting body hair and connected to one end of the handle portion, the electric razor comprising a first imaging device for imaging the area near the skin against which the shaving portion comes into contact, an image processing device for processing images obtained from the first imaging device, and an alarm device for notifying the user of the processing results of the image processing device, the image processing device comprising a property information generation unit for generating property information indicating the properties of the body hair or skin based on the acquired image, a shaving information generation unit for generating shaving information related to shaving based on the property information, and a result alarm unit for controlling the alarm device to notify the user of the shaving information. Effect of the Invention

[0007] According to the present invention, it is possible to present to a user a shaving condition that reduces damage to the skin during shaving. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing an electric shaver according to an embodiment. [Diagram 2] FIG. 2 is a perspective view showing a head unit according to the embodiment. [Diagram 3] FIG. 3 is a block diagram showing the functional units of the image processing device according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of an electric shaver according to the present invention will be described with reference to the drawings. Note that the following embodiment is an example for explaining the present invention, and is not intended to limit the present invention. For example, the shapes, structures, materials, components, relative positional relationships, connection states, numerical values, mathematical expressions, contents of each step in the method, and the order of each step shown in the following embodiment are examples, and may include contents not described below. In addition, geometric expressions such as parallel and orthogonal may be used, but these expressions do not indicate mathematical strictness, and include errors, deviations, etc. that are substantially acceptable. In addition, expressions such as simultaneous and identical also include a substantially acceptable range.

[0010] In addition, the drawings are schematic diagrams in which emphasis, omissions, or ratios have been appropriately adjusted in order to explain the present invention, and the shapes, positional relationships, and ratios are different from the actual ones.

[0011] In addition, in the following, a plurality of inventions may be collectively described as one embodiment, and some of the contents described below are described as optional components related to the present invention.

[0012] Fig. 1 is a perspective view of an electric shaver. Fig. 2 is a perspective view of the head of the electric shaver. Note that the electric shaver 100 has rounded edges and has portions with unevenness for preventing slipping, but these are not shown in the figures.

[0013] The electric shaver 100 is a device that cuts and removes body hair such as whiskers using an electric blade, and includes a grip portion 110, a head portion 120, a first imaging device 131, a notification device 140, and an image processing device 150 (not shown in FIGS. 1 and 2). In this embodiment, the electric shaver 100 includes a second imaging device 132.

[0014] The grip part 110 is a portion that is gripped by a user when using the electric shaver 100. In the present embodiment, the grip part 110 functions as a housing that houses an image processing device 150, a control device that controls the drive of the shaving blade, a battery, etc. On the outer surface of the grip part 110, a power switch 111 for turning the power on and off, an input button 112 for receiving input from the user, etc. are provided.

[0015] Head unit 120 has shaving part 121 equipped with a blade for cutting body hair, and is a member connected to one end of grip unit 110. In the present embodiment, head unit 120 is connected to grip unit 110 so as to be movable relative to it. The direction of movement of head unit 120 is not particularly limited, but electric shaver 100 can swing in circumferential directions about axes in the front-rear direction (X-axis direction in the figure), width direction Y (Y-axis direction in the figure), and up-down direction (Z-axis direction in the figure).

[0016] The shaving unit 121 includes a plurality of first outer blades 122 (four in this embodiment) in the front-rear direction, each of which has a semi-cylindrical shape extending in the width direction and a mesh-like through hole, and a second outer blade 123 having a slit-like through hole disposed between the first outer blades 122. The first outer blade 122 and the second outer blade 123 are attached to a head frame 124, and the shaving unit 121 is detachable from a head base 125.

[0017] A first inner cutter (not shown) corresponding to the first outer cutter 122 and a second inner cutter (not shown) corresponding to the second outer cutter 123 are arranged inside the head unit 120, and an inner cutter drive device is provided for reciprocatingly vibrating each of the first inner cutter and second inner cutter in the width direction (Y-axis direction in the figure). By vibrating the first inner cutter and second inner cutter with the inner cutter drive device, body hair inserted into the through holes of the first outer cutter 122 and second outer cutter 123 is cut between the vibrating first inner cutter and second inner cutter.

[0018] The first imaging device 131 is a device that images the vicinity of the skin against which the shaving unit 121 comes into contact. In the case of this embodiment, the first imaging device 131 has an angle of view that can capture an image of the skin of a length corresponding to the entire first outer blade 122 and second outer blade 123 in the front-rear direction (X-axis direction in the figure), and a length of the skin of a length corresponding to the entire width of the first outer blade 122 (Y-axis direction in the figure) in the width direction (Y-axis direction in the figure) at once when the shaving unit 121 is in contact with the skin. This makes it possible to accurately capture images of the state of the body hair and skin immediately before and after shaving.

[0019] The type of imaging device 131 is not particularly limited, and an example of the type is a so-called digital camera that is equipped with an optical system including a lens and an imaging element that converts an image formed by the optical system into an electrical signal.

[0020] The first imaging device 131 of this embodiment is fixed to the head base 125 of the head unit 120, and the first imaging device 131 also moves together with the movement of the head unit 120 relative to the grip unit 110. This allows the distance between the skin and the first imaging device 131 to be stabilized even during shaving with the electric shaver 100, and allows a clearer image to be captured. Specifically, as shown in FIG. 2, the first imaging device 131 is attached to a board 133 that protrudes forward from the front side (X-side in the figure) surface of the head base 125. This is preferable because the first imaging device 131 does not get in the way when attaching or detaching the head frame 124. In addition, an illumination device 135 such as an LED that illuminates the skin within the angle of view of the first imaging device 131 is attached to the board 133. The board 133, the first imaging device 131, and the illumination device 135 are covered by a cover 134.

[0021] The second imaging device 132 is a device that images a wider area than the first imaging device 131 when the shaving part 121 is in contact with the skin. The second imaging device 132 of this embodiment is fixed to the end of the grip part 110 on the opposite side to the head part 120, and has an angle of view that can image, for example, the entire cheek on one side when the shaving part 121 is in contact with the skin. This makes it possible to accurately grasp the condition of the skin immediately after shaving.

[0022] The notification device 140 is a device that notifies the user of the processing result of the image processing device 150. The notification method of the notification device 140 is not particularly limited, and examples include a method of notifying by sound (including voice), light, vibration, electrical stimulation, and a combination of these. In the case of this embodiment, the notification device 140 is a device that notifies information by light, and includes a plurality of light-emitting elements such as LEDs arranged on the periphery of the end of the grip part 110 on the head part 120 side. The notification device 140 is capable of changing at least one of the brightness, color, and light emission pattern of the light. A specific method of notifying shaving information will be described later.

[0023] 3 is a block diagram showing the functional parts of the image processing device. The image processing device 150 is a device for processing images obtained from the first imaging device 131, and includes a property information generating unit 151, a shaving information generating unit 152, and a result notifying unit 153 as processing units realized by causing a processor to execute a program. In the case of this embodiment, the image processing device 150 includes an information acquiring unit 154, an unshaved information generating unit 155, and a region designating unit 156.

[0024] The information acquiring unit 154 is a processing unit that acquires information such as an image captured by the imaging device 131. In the case of the present embodiment, the information acquiring unit 154 also acquires an image captured by the second imaging device 132, input information input by the user using the input button 112, etc.

[0025] The attribute information generating unit 151 generates attribute information indicating the attributes of body hair or skin based on the image acquired by the information acquiring unit 154 from the first imaging device 131. The attribute information is information including at least one of the following, for example: the length of body hair, the density of body hair, scale-like matter on the skin, and the color of the skin.

[0026] An example of a case where the attribute information generating unit 151 generates attribute information indicating the length of body hair will be described. The attribute information generating unit 151 performs a process to enhance contrast on an image of skin including body hair acquired by the information acquiring unit 154. For example, the attribute information generating unit 151 enhances the luminance contrast by performing gradation conversion on the luminance of each pixel of the image such that the change in output gradation relative to the input gradation is increased. Note that before or after this contrast enhancement, fine noise such as unevenness of the skin may be removed by applying a low-pass filter to the image.

[0027] Next, the property information generating unit 151 performs contour extraction on the contrast-enhanced image. More specifically, the property information generating unit 151 performs binarization (whitening / blackening) in which white pixels are output when the luminance difference with the surrounding pixels is equal to or greater than a threshold, and black pixels are output when the luminance difference is less than the threshold, and then performs expansion / contraction processing to remove fine noise. The expansion / contraction processing refers to an expansion processing in which a pixel of interest is replaced with white if there is even one white pixel around the pixel of interest, and a contraction processing in which a pixel of interest is replaced with black if there is even one black pixel around the pixel of interest. This contour extraction results in an image showing the contours of individual body hairs.

[0028] Next, the property information generating unit 151 calculates a circumscribing rectangle for each contour-extracted region. Specifically, the property information generating unit 151 calculates a circumscribing rectangle for each contour-extracted region such that the contour of the rectangle comes into contact with the region corresponding to the extracted body hair. However, the method of calculating the circumscribing rectangle is not limited to this method, and any other method may be used as long as it is possible to calculate a rectangle that covers the contour of the body hair in order to estimate the length of the body hair. By the above processing, an image showing a rectangle circumscribing the region corresponding to each body hair is obtained.

[0029] (Hair length) Next, the property information generator 151 calculates the length of the long side of each calculated circumscribing rectangle to identify the length of each body hair. To identify the length of the long side, the long side is treated as the hypotenuse, and the lengths of the two perpendicular sides of a right-angled triangle including two sides along the orthogonal direction in which the pixels are arranged (respectively, the number of pixels x pixel spacing) are calculated, and the length of the long side that is the hypotenuse is calculated using Pythagoras' theorem.

[0030] In this way, the length of each body hair is identified from the image captured by the first imaging device 131. Furthermore, the property information generating unit 151 statistically processes the lengths of the multiple body hairs contained in the image, and generates information representative of the lengths of the multiple body hairs in one image as quantified property information.

[0031] (Hair Density) An example will be described in which the property information generating unit 151 generates property information indicating the density of body hair. The process is the same as above until the property information generating unit 151 generates an image indicating the contours of each body hair.

[0032] Next, the attribute information generating unit 151 calculates the area of ​​each region whose outline has been extracted, and calculates the total area of ​​each region in the image. Furthermore, the attribute information generating unit 151 generates the ratio of the total area of ​​the rectangular regions to the area of ​​the image as digitized attribute information indicating the density of body hair.

[0033] (Scaly density) An example will be described in which the attribute information generating unit 151 generates attribute information indicating the density of scale-like matter, which is one of the skin attributes. The attribute information generating unit 151 extracts the outline of white scale-like matter from an image of skin including body hair acquired by the information acquiring unit 154. The extraction of the outline of scale-like matter may be performed by a method in which black and white are reversed in the method of extracting the outline of body hair.

[0034] Next, the property information generating unit 151 calculates the area of ​​each of the contour-extracted white regions, and calculates the total area of ​​each region in the image. Furthermore, the property information generating unit 151 generates the ratio of the total area of ​​the rectangular regions to the area of ​​the image as quantified property information indicating the density of the scale-like matter.

[0035] (Skin Color) An example of a case where the attribute information generating unit 151 generates attribute information indicating skin color will be described below. The attribute information generating unit 151 removes the hair portion from an image of skin including hair acquired by the information acquiring unit 154, statistically processes information regarding the color of each remaining pixel, and generates, as attribute information, a numerically quantified skin color that represents the color of multiple pixels in an image excluding the portion corresponding to hair.

[0036] The shaving information generating unit 152 generates shaving information related to shaving based on the property information generated by the property information generating unit 151. The shaving information is information including at least one of excessive pressure, excessive speed, and end of shaving. For example, the shaving information generating unit 152 may generate shaving information indicating end of shaving when the property information indicating the body hair length becomes equal to or less than a length threshold. The shaving information generating unit 152 may also generate shaving information indicating end of shaving when the property information indicating the shaved density becomes equal to or less than a shaved density threshold. The shaving information generating unit 152 may also generate shaving information indicating over-shaving when the property information indicating the density of scale-like matter becomes equal to or more than a scale density threshold.

[0037] In the present embodiment, the shaving information generating unit 152 may generate shaving information by judging the difference between a plurality of pieces of property information obtained from a plurality of images using a threshold value. For example, the shaving information generating unit 152 generates shaving information indicating excessive pressing by judging the color difference of the skin color from property information indicating the skin color based on an image before pressing the skin with the shaving unit 121 and property information indicating the skin color based on an image at the time of pressing using a color difference threshold value. For example, when the red element of the skin color becomes a value indicating white that is equal to or greater than the color difference threshold value, the shaving information generating unit 152 generates shaving information indicating excessive pressing. In addition, the shaving information generating unit 152 may calculate a motion vector focusing on body hair and skin texture from images captured at a predetermined interval, and generate shaving information indicating excessive speed when the speed obtained from the motion vector is equal to or greater than the speed threshold value. In addition, the shaving information generation unit 152 calculates the blur width of body hair, skin texture, etc. from a single image captured at a specified shutter speed (exposure time), and if the speed obtained from the shutter speed and the blur width is equal to or greater than a speed threshold, it may generate shaving information that is excessively fast.

[0038] In the present embodiment, the shaving information generating unit 152 generates shaving information corresponding to input information input by the user using the input buttons 112 or the like. For example, the image processing device 150 holds a plurality of length thresholds, and the shaving information generating unit 152 selects a length threshold corresponding to the input information. By using the selected length threshold, the shaving information generating unit 152 can change the length of body hair for which shaving information indicating the end of shaving is generated, and it becomes possible to adjust the finished length of shaving. Specifically, if it is desired to reduce the burden on the skin, a length threshold set relatively long may be selected, and if it is desired to prioritize a deep shave, a length threshold set relatively short may be selected.

[0039] In addition, the shaving information generation unit 152 may store multiple thresholds with different values, such as a first length threshold that is 20% longer than the length threshold and a second length threshold that is 40% longer than the length threshold, and generate shaving information that increases or decreases in stages, such as shaving information according to stages of body hair length.

[0040] After generating shaving information indicating the end of shaving because the property information becomes below the length threshold, below the shaved density threshold, above the scale density threshold, etc., the shaving information generating unit 152 may generate shaving information indicating over-shaving if it generates further shaving information indicating the end of shaving based on newly generated property information.

[0041] The result notification unit 153 controls the notification device 140 to notify the user of the shaving information generated by the shaving information generation unit 152. For example, the result notification unit 153 notifies the user of the shaving information by controlling the light emitted by the light emitting device included in the notification device 140 to change at least one of the brightness, color, and light emission pattern. When the length of the body hair is long, the result notification unit 153 controls the notification device 140 to emit red light to notify the user that shaving is not yet complete, and when shaving information indicating the completion of shaving is obtained from the shaving information generation unit 152, the result notification unit 153 controls the notification device 140 to emit blue light to notify the user that shaving is completed. Furthermore, when the user is shaving an area where body hair equal to or shorter than the length threshold exists, the notification device 140 may be controlled to flash or light up in another color (such as green) or flash blue to notify the user that shaving is over.

[0042] Furthermore, when the shaving information generating unit 152 generates shaving information that increases or decreases stepwise, the result notifying unit 153 may notify the user of the stepwise shaving information by controlling the light emitted by the light emitting device to change at least one of the brightness, color, and light emission pattern stepwise. For example, the light intensity may be increased or decreased stepwise, or the blinking interval of the light emission may be increased or decreased stepwise.

[0043] The unshaved information generating unit 155 generates unshaved information indicating an area where shaving has not been performed based on an image obtained from the second imaging device 132. For example, in the initial stage of shaving an area such as one cheek area, chin area, or area under the nose, or in the stage immediately before, the unshaved information generating unit 155 obtains an initial image of the area, and then obtains images at a predetermined interval. The unshaved information generating unit 155 compares the initial image with the subsequent image to estimate a place where the shaving part 121 of the electric shaver 100 is in contact with the skin as a treated area. The unshaved information generating unit 155 generates unshaved information indicating at least a part of an area that is adjacent to an area where the shaving part 121 is actually in contact and is not estimated as a treated area. The unshaved information generating unit 155 may also process an image obtained from the first imaging device 131 to estimate a treated area or an unshaved area.

[0044] The region designation unit 156 controls the notification device 140 based on the unshaved information generated by the unshaved information generation unit 155 to designate the unshaved region to the user. For example, in the case of the present embodiment, the notification device 140 has light-emitting elements at eight locations, namely, the front, rear, left, right, and middle of the grip unit 110. After the result notification unit 153 controls the notification device 140 to notify the shaving information indicating the end of shaving, the region designation unit 156 controls the notification device 140 to emit light from the light-emitting element arranged at the position corresponding to the direction in which the unshaved region exists. Based on the light emitted by the notification device 140, the user can recognize that the processing of the region currently being shaved has been completed, and can recognize the location where the shaving processing will be performed next. As a result of the above, excessive shaving processing can be suppressed, and the entire shaving processing can be efficiently performed.

[0045] According to the electric razor 100 of the above embodiment, information on body hair or the skin surface can be extracted from the image obtained from the first imaging device 131, and shaving information on shaving can be notified to the user. Therefore, the user can perform the shaving process while recognizing the strength with which the electric razor 100 is pressed against the skin, the speed at which the electric razor 100 moves against the skin, the end of shaving in a predetermined area, etc., and can suppress damage to the skin and efficiently proceed with the shaving work.

[0046] In addition, by generating shaving information corresponding to the input information input by the user, the user can select the shaving state that suits his / her preference. For example, the electric shaver 100 can be changed to a mode that suits the user's preference, such as determining the length of body hair after shaving or determining the degree of burden on the skin.

[0047] Furthermore, by providing the notification device 140 with a light emitting element, it becomes possible to easily notify the user of multiple pieces of shaving information by changing the brightness, color, and light emission pattern of the light.

[0048] In addition, by using the difference in property information obtained from multiple images taken at different times, shaving information based on changes in the condition of body hair and changes in the condition of the skin can be generated, and accurate shaving information can be provided to the user.

[0049] In addition, the image from the second imaging device 132, which has a comparatively wide angle of view, allows untreated areas to be distinguished from treated areas, and allows the user to navigate to the area to be shaved next. This allows a wide area to be shaved efficiently, and reduces damage to the skin.

[0050] The present invention is not limited to the above-described embodiment. For example, the components described in this specification may be combined in any manner, or some of the components may be removed to create another embodiment of the present invention. In addition, the present invention also includes modifications that are made to the above-described embodiment by those skilled in the art without departing from the spirit of the present invention, i.e., the meaning of the words in the claims.

[0051] For example, although the notification device 140 equipped with a light-emitting element has been exemplified, the notification device 140 may be equipped with a sound generating device such as a speaker, a vibration device that generates vibrations in the grip portion 110, an electrical muscle stimulator that applies electrical stimulation to the hand holding the grip portion 110, etc. Such notification device 140 can notify shaving information by changing the strength and generation pattern of sound (including voice) and vibration, and the strength and direction of the electrical stimulation.

[0052] Furthermore, the attribute information generating unit 151 may generate the orientation of the hair as one of the attribute information. Specifically, as in the above embodiment, in the image of the hair enclosed in the circumscribing rectangle, the root of the hair has a grayscale gradation that becomes black from white toward the tip, and at the tip of the hair, there is a large brightness difference between the outline of the hair and the skin. In other words, unlike the tip, the hair root is embedded under the skin, so the contrast between the hair and the skin is small. The attribute information generating unit 151 identifies the orientation of the hair by using at least one of the features of the image of the vicinity of the hair root including the hair root and the features of the image of the vicinity of the tip including the tip of the hair root.

[0053] Furthermore, the property information generating unit 151 may specify the direction of the hair (regardless of the direction from the root to the tip) using a circumscribing rectangle of the hair.

[0054] Based on the property information indicating the orientation or direction of the body hair, the result notifying section 153 may notify the direction in which the electric shaver 100 should be operated.

[0055] In addition, in the above embodiment, a shaving unit 121 having four first outer blades 122 and one second outer blade 123, i.e., five outer blades in total, is exemplified, but the number of outer blades is not particularly limited, and the shaving unit 121 may have four or less, or six or more outer blades.

[0056] Also, the shaving section 121 may be one in which the inner blade rotates relative to the outer blade to shave.

[0057] The attachment position of the first imaging device 131 is not limited to the above embodiment, and may be attached to the rear side (X+ side in the figure) or the side (Y- side or Y+ side in the figure), or may be attached to the grip part 110. The number of first imaging devices 131 is not limited to one, and may be attached to multiple locations. [Industrial Applicability]

[0058] The present invention can be applied to electric shavers capable of shaving the body hair of animals including humans, such as so-called electric shavers for shaving beards and so-called clippers for shaving hair. [Explanation of symbols]

[0059] 110 Gripping part 111 Power switch 112 Input button 120 Head 121 Shaving section 122 First outer blade 123 Second outer blade 124 Head frame 125 Head base 131 First Imaging Device 132 Second Imaging Device 133 Substrate 134 Cover 135 Lighting Equipment 140 Notification device 150 Image Processing Device 151 Property information generation section 152 Shaving information generation section 153 Results Notification Department 154 Information Acquisition Department 155 Unshaven information generation section 156 Area instruction section

Claims

1. An electric shaver comprising: a grip portion to be gripped by a user; and a head portion having a shaving portion for cutting body hair and connected to one end of the grip portion, a first imaging device that images an image of an area near the skin that the shaving unit contacts; an image processing device that processes an image obtained from the first imaging device; a notification device that notifies a user of a processing result of the image processing device, The image processing device includes: an attribute information generating unit that generates attribute information, which is at least one of skin color, body hair, and skin texture, based on the acquired image; a shaving information generating unit which generates shaving information indicating excessive pressure by determining a color difference of the skin color based on a plurality of images according to a threshold value, or which calculates a motion vector focusing on body hair and skin texture from images captured at a predetermined interval, and generates shaving information indicating excessive pressure if the speed obtained from the motion vector is equal to or exceeds a speed threshold value, or calculates a blur width of body hair and skin texture from an image captured at a predetermined shutter speed, and generates shaving information indicating excessive pressure if the speed obtained from the shutter speed and the blur width is equal to or exceeds a speed threshold value; a result notification unit that controls the notification device to notify a user of the shaving information. Electric razor.

2. The image processing device includes: An information acquisition unit that acquires input information input by a user, The shaving information generating unit includes: Generate the shaving information corresponding to the input information 2. The electric shaver according to claim 1.

3. The notification device includes: A device that notifies information by light, The result notification unit is The notification device is controlled to change brightness, color, and light emission pattern to notify the user of the shaving information.

3. The electric shaver according to claim 1 or 2.

4. a second imaging device that captures an image of a wider area than the first imaging device; The image processing device includes: an unshaved information generating unit that generates unshaved information indicating an unshaved area based on an image obtained from the second imaging device; and a region indicating unit that controls the notification device based on the unshaved region information to indicate an unshaved region to a user. The electric shaver according to any one of claims 1 to 3.

5. the head portion is movably connected to the handle portion; The first imaging device is fixed to the head portion. The electric shaver according to any one of claims 1 to 4.

6. The first imaging device is The angle of view is such that the entire width of the skin area that the shaving part comes into contact with is captured at once. The electric shaver according to any one of claims 1 to 5.

Images