WO2005092438A1

WO2005092438A1 - Treatment device

Info

Publication number: WO2005092438A1
Application number: PCT/JP2005/005282
Authority: WO
Inventors: Iwao Yamazaki
Original assignee: Ya-Man Ltd.
Priority date: 2004-03-26
Filing date: 2005-03-23
Publication date: 2005-10-06
Also published as: JPWO2005092438A1

Abstract

A treatment device comprises a laser light radiating mechanism consisting of a laser drive circuit for radiating laser light from a laser radiation port onto a skin surface which is a subject of treatment, a laser diode, and a light guide lens, a shield member (shutter) for opening/closing a laser radiation port on the basis of the distance between the skin surface and the laser radiation port, and a sleeve-like member covering the laser radiation port, adapted to actuate the shield member, and capable of advance and retraction. Further, disposed at positions surrounding the laser radiation port inside the sleeve-like member are three contacts for realizing a touch sensor function.

Description

Treatment equipment

Technical field

The present invention relates to a treatment device for applying a cosmetic treatment by irradiating a skin surface with light such as a laser beam.

Background art

[0002] Generally, a laser capable of irradiating a skin surface with a laser beam having a high energy density to heat the skin's living tissue to a calorific value, etc., thereby activating skin cell tissues and performing treatments such as beautiful skin and hair growth. A light irradiation type treatment device is known (for example, see Patent Document 1).

[0003] In this type of treatment device, in addition to the above-described skin treatment and hair growth, treatments such as hair loss and slimming can be performed by appropriately setting the power and irradiation time of the laser beam applied to the skin surface. It is possible.

[0004] By the way, such a laser beam irradiation type treatment apparatus has a touch sensor function in order to prevent a laser beam from being erroneously irradiated with a high energy density at an unintended part of the body. Is also used. In other words, this touch sensor function detects the contact / non-contact between, for example, one or two contacts protruding in the direction of laser light irradiation and the skin surface to be treated, for example, the force near the laser light irradiation port. It controls the emission of laser light from the laser light source and the non-emission of laser light.

[0005] However, the touch sensor mechanism having the above-described configuration is not necessarily sufficient as a safety device for preventing erroneous irradiation of laser light, and further increases safety. Improvement is required.

Patent document 1: JP-A-2002-355320

Disclosure of the invention

Therefore, the present invention has been made to solve such a problem, and it is possible to more reliably prevent unintended light irradiation, thereby improving the safety when performing a treatment. The purpose is to provide. [0007] To achieve the above object, a treatment apparatus according to the present invention provides a light irradiation mechanism for irradiating light from an irradiation port toward a skin surface to be treated, and a separation distance between the skin surface and the irradiation port. And an irradiation port opening / closing mechanism for opening and closing the irradiation port based on the above.

[0008] That is, in the present invention, the irradiation port is opened and closed based on the distance between the skin surface and the irradiation port. For example, when the irradiation port comes close to the skin surface, the irradiation port is opened, On the other hand, if the irradiation port is relatively far away from the skin surface, the irradiation port can be closed. Thereby, light irradiation becomes possible only when the desired skin surface to be treated and the light irradiation port are close to each other within a predetermined distance. Therefore, according to the present invention, unintended light irradiation can be more reliably prevented, so that even when the light emitted from the irradiation port is, for example, a high energy density laser light, etc., it is safe to perform treatment. Can increase the integrity.

[0009] Further, in the treatment device according to the present invention, the irradiation port opening / closing mechanism may be configured such that the irradiation port opening / closing mechanism surrounds the irradiation port from the periphery and has a front end protruding from the irradiation port and a predetermined position retreating from the advance position. A tubular member movably provided between a retracted position and a retractable position, wherein the irradiation port is closed when the tubular member moves to the forward position in conjunction with the forward and backward movement of the tubular member; A shielding member that opens the irradiation port when the cylindrical member moves to the retracted position; and an urging member that urges the cylindrical member to the advanced position.

[0010] That is, according to the present invention, the distal end portion of the tubular member is pressed against the skin surface, and the shielding member moves only when the tubular member retreats to the retracted position while resisting the urging force of the urging member. Then, the irradiation port is opened and the light is irradiated on the skin surface. On the other hand, the tip of the tubular member is pressed against the skin surface! / In other cases, the biasing force of the biasing member positions the tubular member at the forward position and the shielding member does not move. The obstruction of the mouth is maintained, and irradiation of the skin surface is prevented. Therefore, also in the present invention, light irradiation can be performed only when the skin surface to be treated and the light irradiation port are within a predetermined distance, and therefore, it is possible to prevent light irradiation unintentionally. Can be.

[0011] Further, the treatment device according to the present invention, the irradiation port from the inside of the cylindrical member At least three or more contacts arranged to surround and a touch sensor mechanism for operating the light irradiation mechanism by detecting contact between each of the contacts and the skin surface. .

[0012] According to the present invention, when the above-described tubular member is located at the forward position, that is, when the distal end of the tubular member is not pressed against the skin surface, the shielding member closes the irradiation unit, In addition, since each contact is also covered with the tubular member, it is possible to prevent light from being erroneously emitted except during the treatment. In other words, the present invention has a double protection function of irradiating light only after the two operations of the retracting operation of the cylindrical member and the operation of contacting each contact with the skin surface are performed. In addition, the safety when performing the treatment can be further improved. Such a highly safe light irradiation prevention function is useful when the light irradiated by the light irradiation mechanism is a laser beam having a high energy density or the like.

[0013] Further, in the present invention, three or more contacts, which are direct detection portions of the contact state with the skin surface and the non-contact state, are provided, and are substantially dispersed at positions surrounding the light irradiation port. Since the light is radiated only when the desired skin surface to be treated and the light irradiator are completely opposed to each other, the direction of the light irradiator is definitely determined. Will be.

[0014] Further, in the treatment apparatus according to the present invention, the light irradiation mechanism includes a light source and an optical system for condensing the light emitted from the light source, and further includes a light condensed by the optical system. A focal position of the contact is located closer to the light source than a contact portion of each of the contacts with the skin surface.

[0015] In the present invention, since the light having a reduced energy density is radiated again beyond the focal position on the skin surface where the focal position of the light is unlikely to overlap the skin surface, Safety during the maintenance.

[0016] Further, in the treatment device of the present invention, the detecting means for detecting that the tubular member has moved to the retracted position, and the detecting means does not detect the movement of the tubular member to the retracted position. In the state, the apparatus further comprises light irradiation blocking means for blocking the driving of the light irradiation mechanism. Further, the treatment device of the present invention is characterized in that the treatment device further comprises a lens that receives the emitted light and also emits the light while changing the aspect ratio of the cross-sectional shape of the incident light. . Further, it is preferable that the laser irradiation port is formed by, for example, a rectangular hole corresponding to an aspect ratio of a sectional shape of light passing through the lens. In addition, the portions of the lens that become the light incident surface and the light emitting surface are formed, for example, in a shape that swells so as to have different vertical and horizontal curvatures.

Brief Description of Drawings

FIG. 1 is a perspective view showing a treatment device according to an embodiment of the present invention.

FIG. 2 is a front view showing a laser irradiation device provided in the treatment device of FIG. 1.

FIG. 3 is a cross-sectional view of the laser irradiation apparatus of FIG. 2 as viewed from the side.

FIG. 4 is a perspective view showing a head part of the laser irradiation apparatus in FIG. 2.

FIG. 5 is a cross-sectional view of the head portion of FIG. 4 when laser light is not irradiated when viewed from the side.

FIG. 6 is a cross-sectional view of the state of the head unit of FIG. 4 when irradiated with laser light, as viewed from the side.

FIG. 7 is a block diagram functionally showing a control system of the treatment apparatus of FIG. 1.

FIG. 8 is a block diagram functionally showing a touch sensor circuit forming a part of the control system of FIG. 7.

FIG. 9 is a view showing another head part having a different structure from the head part in FIG. 6.

FIG. 10 is a diagram showing another head unit having a different structure from the head unit in FIGS. 6 and 9.

FIG. 11 is a perspective view showing another head part having a different structure from the head part in FIGS. 6, 9, and 10;

FIG. 12 is a plan view showing a head section of FIG. 11.

FIG. 13 is a perspective view schematically showing an optical system built in the head unit of FIG. 11.

[FIG. 14] A perspective view showing another head portion having a different structure from the head portion in FIG. 6, FIG. 9, FIG. 10, and FIG.

FIG. 15 is a plan view showing a head section of FIG. 14.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a treatment device according to a first embodiment of the present invention, and FIG. 2 is a front view showing a laser irradiation device provided in the treatment device. FIG. 3 is a cross-sectional view of the laser irradiation apparatus of FIG. 2 as viewed from the side, and FIG. 4 is a head section of the laser irradiation apparatus. FIG. 5 is a cross-sectional view of the head portion of FIG. 4 when laser light is not irradiated, as viewed from the side. FIG. 6 is a cross-sectional view of the head portion of FIG. 4 when laser light is irradiated, as viewed from the side. It is. FIG. 7 is a block diagram functionally showing a control system of the treatment apparatus of FIG. 1, and FIG. 8 is a block diagram functionally showing a touch sensor circuit constituting a part of the control system of FIG.

As shown in FIG. 1, the treatment device 1 is a beauty treatment device operated by a user himself, and includes a controller / tool storage box (hereinafter, referred to as a “control box”) 2 and a control device And a laser irradiation device 5 connected to the box 2 through a connection cable 3.

[0022] On the front of the control box 2, a display panel 6 for visually displaying guidance information for operating the treatment device main body and an operation state of the device, and a connection terminal (plug) of the connection cable 3 are provided. There are sockets 7 to be installed. Further, the control box 2 incorporates a power supply for supplying power to the laser irradiation device 5 and a control circuit for controlling irradiation of laser light from the laser irradiation device 5.

[0023] Further, on the front of the control box 2, a power switch 8 for turning on and off the power of the beauty treatment apparatus main body, an LED 9 for indicating a power on and off state, and a setting for performing various settings are provided. A switch 10 and an LED 11 for visually indicating each setting state are provided.

[0024] Further, as shown in Figs. 2 and 3, the laser irradiation device 5 is a hand-held device for performing a treatment while being held by a user's hand. That is, the laser irradiation device 5 includes a case 12 forming an outer shape of the device, a control chip 16 mounted inside the case 12 via a substrate 15, and a setting switch provided on the entire surface of the case 12. 19, a laser diode 20 as a light source that emits laser light (see FIGS. 5 and 6), a heat sink for removing heat from the laser diode 20, a cooling fan 17 for cooling the heat sink, and an emission from the laser diode. It mainly comprises a rod-shaped light guide lens 24 for irradiating the laser light from the laser irradiation port 23 to the skin surface of the body while guiding the laser light thus emitted.

As shown in FIG. 2, the setting switch 19 turns on and off the power supply of the treatment device main body on the side of the laser irradiation device 5 and notifies the user by turning on and off the LED lamp 18. The setting switch 19 has almost the same function as the setting switch 10 on the main unit. This is for setting the on-time (irradiation time and its irradiation cycle) of the laser light to be intermittently (pulsed) irradiated. That is, every time the setting switch 19 is pressed once, the mode is switched in the order of power-on, on-time switching, and power-off. At this time, the display of the LED lamp 18 is switched in the order of green lighting, green flashing, orange lighting, orange flashing, red flashing, and red flashing corresponding to the setting levels 1 to 6. Finally, when the setting switch 19 is pressed for more than 1.5 seconds, for example, the power is turned off.

The above-described heat sink diffuses heat generated during the operation of the laser diode 20 by heat conduction, thereby suppressing a decrease in performance. For this reason, the heat sink is made of aluminum or an alloy thereof having good thermal conductivity, and is provided with a plurality of through holes in order to increase the surface area, thereby enhancing the heat radiation effect.

[0027] The laser diode excites a PN junction diode using a compound semiconductor such as GaAs (gallium arsenide) by directly passing a current through the diode to obtain laser oscillation. As the laser diode 20, for example, a semiconductor element capable of emitting laser light having a wavelength of 700 to 900 nm and an optical output of 5 mW to 5 W is applied.

[0028] Such a laser beam has an effect of inducing a photoelectric reaction, a magneto-optical reaction, a photodynamic reaction, a photochemical reaction, a photoimmune reaction, a photoenzymatic reaction, and the like. It promotes tissue metabolism to increase skin blood circulation, and is hardly absorbed by water or blood, so it has excellent reach to deep skin.

Here, various treatments that can be realized by the treatment device 1 will be briefly described.

[0030] Since the laser light has a higher energy density than other light, when the living tissue is irradiated, the temperature of the irradiated part can be increased relatively easily. As a result, the laser light can be used to generate a photothermal reaction that intentionally causes denaturation of proteins at a desired site in a living tissue, or a so-called non-thermal reaction (a temperature not exceeding 40 ° C) to promote metabolic functions. It is possible to induce photochemical reactions, photomagnetic reactions, ionization reactions, and other biological reactions that occur at relatively low temperatures.

[0031] That is, the treatment device 1 performs treatments such as hair growth, hair removal, beautiful skin, and slimming by appropriately setting the laser power, irradiation time, and the like, and irradiating the skin surface of the human body with laser light. Manifest.

[0032] Hair restoration treatment is performed by irradiating the scalp surface with laser light whose energy density is set relatively low. As a result, blood circulation in the scalp is promoted, pores are opened, and sebum and dirt clogged in the pores are washed, thereby obtaining a hair growth effect. On the other hand, hair removal treatment is realized by irradiating a hair root such as body hair with a laser beam having a relatively high energy density. In this case, the denaturation of proteins of hair mother cells such as body hair is promoted, whereby the growth of hair is suppressed and a hair loss effect is obtained.

[0033] When performing beautiful skin treatment, laser light is irradiated so that the temperature of the melan- es scattered in the epidermis and the dermis of the skin is relatively high, and the temperature is raised to a temperature. Cause it to remove aza, stains, freckles, etc. Also perform slimming treatment Depth related to sympathetic nerves! Relatively low energy density to specific tubs! レーザ Laser light is supplied to the tubs by non-thermal action such as photochemical reaction, magneto-optical reaction, ionization reaction, etc. Stimulates blood circulation, thereby activating cell tissues to enhance metabolic function and burn excess fat. Here, the target light emitted from the head unit 22 to the skin surface may be changed to laser light power, for example, UV light. By irradiating the skin surface with UV light having a bactericidal action, a bactericidal treatment for purifying the skin can be performed.

Next, a control system of the treatment device 1 will be described.

That is, as shown in FIG. 7, the control system 37 of the treatment apparatus 1 detects the contact of each of the contacts 25a, 25b, and 25c with the skin surface, and radiates laser light from the laser diode. A touch sensor circuit 28 for controlling the irradiation, a memory 29 for storing the laser beam irradiation pattern, and a mode for switching the treatment mode according to the setting contents of the setting switches 10 and 19. A switching circuit 38, a laser driving circuit 30 that drives the laser diode 20 to emit laser light, a CPU 31 that controls these circuits in general, a touch sensor circuit 28, and an input that connects the laser driving circuit 30 and the CPU 31. The tough ace is also composed of 32 mag and power.

The memory 29 stores various programs including setting values of laser beam irradiation timing intermittently irradiated from the laser diode 20 for a predetermined irradiation time. The laser drive circuit 30 supplies a predetermined drive current voltage to the laser diode 20 under the control of the CPU 31. And the laser diode 20 emits laser light.

Here, the touch sensor mechanism included in the treatment device 1 of the present embodiment will be described in detail mainly with reference to FIGS.

That is, as shown in FIGS. 3 to 6, the treatment apparatus 1 having the laser irradiation apparatus 5 has a laser driving circuit 30 for irradiating a laser beam from the laser irradiation port 23 to the skin surface S to be treated. A laser beam irradiation mechanism 48 such as a laser diode 20 and a light guide lens 24; and an irradiation port opening / closing mechanism 49 that opens and closes the laser irradiation port 23 based on the distance between the skin surface S and the laser irradiation port 23. , Is provided. Here, the irradiation port opening / closing mechanism 49 surrounds the laser irradiation port 23 from the peripheral edge, and has a forward end position (see FIG. 5) in which the front end projects from the laser irradiation port 23 (in the direction of arrow Z1) and the forward position. The tubular member 52 is provided so as to be able to move forward and backward between a predetermined retreat position (see FIG. 6) to retreat (in the direction of arrow Z2), and the tubular member 52 moves forward in conjunction with the forward and backward movement of the tubular member 52. The laser irradiation port 23 is closed when it moves to the position (see Fig. 5), and the laser irradiation port 23 is opened when the tubular member 52 moves to the retracted position (see Fig. 6). And a coil spring 51 as an urging member for urging the tubular member 52 to the forward position.

Further, the head section 22 is provided with an inner cylindrical body 53 in which a laser diode 20, a light guide lens 24, and a shielding member (shutter) 55 are built. That is, the laser irradiation port 23 is provided on the tip side of the inner cylindrical body 53. The tubular member 52 moves forward and backward (in the direction of the arrow Z1-Z2) so as to slide on the outer diameter portion of the inner tubular body 53. The coil spring 51 has its inner diameter part fitted into the outer part of the inner cylindrical body, and urges the cylindrical member 52 (in the direction of arrow Z1) through the step of the cylindrical member 52. The tubular member 52 and the inner tubular body 53 are fixed to the case through the base 54. Also, at least three or more of the above-mentioned contacts 25a, 25b, and 25c protrude from the laser irradiation port 23 in the irradiation direction of the laser beam and surround the laser irradiation port 23 from the inside of the cylindrical member 52. In the embodiment, three) are arranged! The touch sensor circuit 28 detects the contact between each of these contacts (all contacts) 25a, 25b, 25c and the skin surface S, and under the control of the CPU 31, the laser beam irradiation mechanism 48 (laser drive circuit 30) Activate

That is, in the treatment device 1 of this embodiment, the distal end of the tubular member 52 is 6, the shielding member 55 moves (in the direction of arrow Z2) only when the cylindrical member 52 is retracted to the retracted position as shown in FIG. 6 while resisting the urging force of the coil spring 51. Then, the laser irradiation port 23 is opened, and the laser beam is irradiated on the skin surface S. On the other hand, the distal end of the tubular member 52 is pressed against the skin surface S. Since the cylindrical member 52 is positioned (stopped) at the advanced position and the shielding member 55 does not move, the closed state of the laser irradiation port 23 is maintained, and the irradiation of the skin surface S with the laser beam is prevented. However, according to the treatment apparatus 1, laser light can be irradiated only when the skin surface S to be treated and the laser irradiation port 23 of the laser light are close to each other within a predetermined distance. Can be prevented, and In the treatment device 1, laser light is emitted only after the two operations of the retreating operation of the tubular member 52 and the operation of contacting the contacts 25a, 25b, and 25c with the skin surface S are performed together. The double protection function enhances the safety of the treatment.

Here, as shown in FIG. 2, FIG. 4, and FIG. 5, each of the contacts 25a, 25b, and 25c is provided with a laser in a state where the skin surface to be treated and the laser irradiation port 23 are surely opposed to each other. They are arranged in a preferred layout for starting light irradiation. That is, these contacts 25a, 25b, 25c are provided substantially on the outer peripheral edge of the laser irradiation port 23, and are arranged at substantially equal intervals in a direction around the outer peripheral edge. More specifically, the contacts 25a, 25b, and 25c are arranged at three apexes of an equilateral triangle that can inscribe the outer peripheral edge of the laser irradiation port 23 formed in a circular shape.

As shown in FIGS. 7 and 8, the touch sensor circuit 28 converts a weak AC voltage generated when each of the contacts 25a, 25b, and 25c comes into contact with the skin into a band-pass filter 33 and a rectifier circuit, respectively. 34, it is configured to convert it into a DC voltage via an amplifier 35, perform waveform shaping, level adjustment, offset adjustment, and then input it to the CPU 31 via the AZD converter 36 and the interface 32. The touch sensor circuit 28 may be a contact type, a type that detects a change in impedance such as capacitance or resistance, or a type that detects a change in pressure by a piezoelectric element.

The touch sensor circuit 28 reads the voltage value of each of the contacts 25a, 25b, and 25c in the above-described configuration, determines whether or not a predetermined AC voltage is generated, and determines whether each of the contacts 25a, 25a, 25b When a predetermined AC voltage is generated in both of the laser diodes 25c, an ON signal is output to the laser drive circuit 30 of the laser diode 20. That is, the laser irradiation device 5 is configured such that the laser beam is irradiated only after all the contacts 25a, 25b, and 25c are brought into contact with the skin surface. As a result, there is no possibility that an unintended biological part is erroneously irradiated with laser light, and the safety of the apparatus is improved. Such a touch sensor circuit 28 is realized by, for example, the control chip 16 built in the laser irradiation device 5.

As described above, according to the treatment apparatus 1 according to the present embodiment, the shielding member (shutter) 5 that is linked by pressing the distal end portion of the tubular member 52 against the skin surface S and retreating the tubular member 52. Laser light is emitted only after the two operations of the opening operation of 5 and the contact operation of each of the contacts 25a, 25b, and 25c with the skin surface S are performed. It will have a double protection function to prevent this, so that the safety when performing the treatment can be further improved.

The laser diode 20 included in the laser irradiation device 5 has a very small area of the light emitting section in the order of several / zm to several tens / zm. The beam does not become a parallel, narrow, linear beam with directivity, but is emitted radially at an angle of 30 ° to 45 °. That is, since the laser irradiation device 5 does not use a focusing lens or the like for focusing a laser beam, there is no laser focal position, and safety is considered.

As described above, the present invention is specifically described by the embodiments. The present invention is not limited to the embodiments, and various changes can be made without departing from the scope of the invention. For example, a CCD (Charge Coupled Device) or the like is mounted on the head unit 22 of the treatment device 1, and a liquid crystal display or the like that displays an image of an illuminated portion on the skin surface and an image of a peripheral portion thereof captured by the CCD is provided. It may be provided in the housing of the laser irradiation device 5 or the like.

As shown in FIG. 9, a convex lens 24a may be provided as an optical system for condensing the laser light emitted from the laser diode 20. When such a convex lens 24a is added, the focal position R2 of the laser beam condensed by the convex lens 24a is larger than the position R1 of the contact portion of each of the contacts 25a, 25b, and 25c with the skin surface S. Laser diode 20 side (arrow Z2 It is desirable to install each of the contacts, the convex lens and the laser diode in consideration of the layout of the contact, the convex lens and the laser diode. Applying the layout shown in Fig. 9, the focal position R2 of the laser beam is unlikely to overlap the skin surface S.Furthermore, the energy dissipated again beyond the focal position R2 on the skin surface S The laser light with reduced density will be irradiated, and the safety of the treatment will be ensured.

Further, as shown in FIG. 10, it is detected that the tubular member 52 retreats in the direction of arrow Z2 while resisting the urging force of the coil spring 51, and that the tubular member 52 has moved to the retracted position. A detection switch 56 may be provided. As the detection switch 56, for example, a push switch or the like disposed at a position in contact with the rear end of the tubular member 52 moved to the retreat position is illustrated. Further, in this case, when the detection switch 56 does not detect the movement of the tubular member 52 to the retracted position, the CPU 31 and the laser drive as light irradiation blocking means for blocking the drive of, for example, the laser diode 20 constituting the laser beam irradiation mechanism. Circuit 30 (see Figure 7) may be activated. In addition, a mechanism for controlling the movement of the shielding member 55a is added according to the detection result by the detection switch 56, that is, whether or not the force with which the tubular member 52 has retracted to the retracted position. Opening and closing may be controlled. By using the detection switch 56 in such a form, it is possible to more reliably prevent the laser light from being unintended by the user.

Further, instead of the cylindrical head portion 22 shown in FIG. 4, etc., as shown in the perspective view of FIG. 11 and the plan view of FIG. Alternatively, a tubular head portion 61 having a rectangular cross section (rectangular shape), such as a tubular member 62 and a pedestal 64, may be applied. The head portion 61 is provided with, for example, a rectangular hole (a rectangular long hole) as a laser irradiation port 63. Further, at least three or more contacts 65a, 65b, 65c for realizing the touch sensor function are arranged in the head portion 61 so as to surround the laser irradiation port 63 from the periphery.

Here, the internal structure of the head section 61 will be described with reference to FIG. 13 in addition to FIGS. 11 and 12. FIG. 13 is a perspective view schematically showing an optical system built in the head section 61.

That is, the laser diode 20 built in the head section 61 and the laser at the tip of the head section 61 Between the irradiation port 63 (on the optical path of the laser light emitted from the laser diode 20), a barrel-shaped lens 24b for forming a laser spot Q having a different aspect ratio on the skin surface S is arranged. Have been. The shape of the incident surface and the outgoing surface of the laser beam in the lens 24b is formed by swelling so that the vertical and horizontal curvatures are different. More specifically, in FIG. 13, the lens 24b, which is illustrated in an upright position along the directions of arrows Y1 and Y2, has a curvature of a horizontal cross section of a laser beam incident portion and a laser beam outgoing portion is larger than that of its vertical cross section. It is formed to be large. That is, the lens 24b emits the laser light toward the laser irradiation port 63 side while changing the aspect ratio of the cross-sectional shape of the laser light incident from the laser diode 20 side.

The above-mentioned laser irradiation port 63 has a shape corresponding to the aspect ratio of the cross-sectional shape of the laser light passing through the lens 24b (a shape capable of transmitting all the light fluxes which do not block the laser light). (A long rectangular hole having a size). That is, the laser spot Q formed on the skin surface S by the laser beam passing through the lens 24b and the laser irradiation port 63 is positioned in the longitudinal direction of the laser irradiation port 63 (arrow Y1) as shown in FIGS. — The Y2 direction) is the long axis, while the short direction (arrow X1-X2 direction) of the laser irradiation port 63 is the long and narrow irradiation spot with the short axis.

[0053] Therefore, when the user moves the head unit 61 in the short-axis direction (the direction of arrow XI-X2) of the laser spot Q formed on the skin surface S, the treatment (laser light) on the skin surface S is performed. (The application of a thermal effect by the irradiation). Further, instead of arranging the lens 24b for forming a long and thin laser spot, for example, a plurality of laser diodes may be arranged. In this case, the plurality of laser diodes are desirably provided at positions facing the laser irradiation port 63 and are arranged side by side in the longitudinal direction of the laser irradiation port 63. Further, instead of the head portion 61 shown in FIGS. 11 and 12, etc., as shown in the perspective view of FIG. 14 and the plan view of FIG. 15, a tubular member 72 and a pedestal 74 having a substantially square cross section, and Alternatively, the treatment device may be configured by applying a rectangular laser irradiation port 73, a barrel-shaped lens 24c, and a head unit 71 including contacts 75a, 75b, and 75c. With this head portion 71, substantially the same effect as the above-described head portion 61 can be expected. Industrial applicability

INDUSTRIAL APPLICABILITY The present invention can be widely used in the electronic and electrical equipment manufacturing industries and the like.

Claims

The scope of the claims

[1] A light irradiation mechanism that irradiates light from the irradiation port toward the skin surface to be treated,

An irradiation port opening / closing mechanism that opens and closes the irradiation port based on a separation distance between the skin surface and the irradiation port,

A treatment device comprising:

[2] The irradiation port opening / closing mechanism is

A cylindrical member that surrounds the irradiation port from the periphery and is provided so as to be able to move forward and backward between a forward position in which a front end projects from the irradiation port and a predetermined retreat position in which the forward position force retreats;

A shield that closes the irradiation port when the cylindrical member moves to the forward position in conjunction with the forward and backward movement of the cylindrical member, and opens the irradiation port when the cylindrical member moves to the retracted position. Components,

An urging member for urging the cylindrical member to the forward position,

The treatment device according to claim 1, further comprising:

[3] at least three or more contacts arranged so as to surround the periphery of the irradiation port from the inside of the cylindrical member;

A touch sensor mechanism for detecting contact of all of the contacts with the skin surface and activating the light irradiation mechanism;

3. The treatment device according to claim 2, further comprising:

[4] The light irradiated by the light irradiation mechanism is a laser beam.

The treatment device according to 2.

[5] The light irradiation mechanism comprises:

A light source,

An optical system for condensing light emitted from the light source,

4. The treatment apparatus according to claim 3, wherein a focal position of the light condensed by the optical system is closer to the light source than a position of a contact portion of the contact with the skin surface. .

[6] detecting means for detecting that the cylindrical member has moved to the retracted position, In a state where the movement of the tubular member to the retracted position is not detected by the detection unit, a light irradiation blocking unit that blocks driving of the light irradiation mechanism;

3. The treatment device according to claim 2, comprising:

7. The treatment apparatus according to claim 1, further comprising a lens that receives the emitted light, and emits the light while changing the aspect ratio of a cross-sectional shape of the incident light. .

8. The treatment apparatus according to claim 7, wherein the laser irradiation port is formed by a rectangular hole corresponding to an aspect ratio of a cross-sectional shape of light passing through the lens.

[9] The treatment device according to claim 7, wherein portions of the lens to be a light incident surface and a light emitting surface are formed in a shape bulging so as to have different vertical and horizontal curvatures.