JP6071882B2 - Laser hair removal equipment - Google Patents

Description

  The present invention relates to a laser hair removal apparatus that performs hair removal by irradiating the skin with laser light.

  In addition to laser hair removal, methods for hair removal include wax hair removal and needle hair removal. Laser hair removal is a hair removal method that suppresses hair regeneration by irradiating the skin with laser light of a wavelength that is absorbed in black or brown, and causing thermal damage to the hair roots, etc. Widely done because it can be done.

  Laser hair removal using a high-power laser requires treatment by a doctor with advanced knowledge and experience. On the other hand, those using a low-power laser do not require specialized knowledge and can easily remove hair even at home.

  For home use, safety is important, and in order to avoid unintentional laser light irradiation, three touch sensors are arranged so as to surround the laser light irradiation port, and laser light irradiation is performed when even one of them does not touch the skin. (Patent Document 1).

For this reason, the energy density of the laser beam reaching the skin is changed by changing the distance between the light source of the laser beam and the skin by replacing the attachment that covers the laser beam emitting part with a different length (patented) In Document 2), touch sensors are attached to all attachments.
In addition to the laser light, a preheating light source such as a halogen lamp is also provided to heat the treatment area (Patent Document 3). When the irradiation range of the preheating light source is changed by changing to an attachment with a different aperture, all Attach the touch sensor to the attachment.

JP-A-2005-278724 JP 2002-306230 A Utility model registration 3028988

In such an attachment change-type laser hair removal device, a plurality of attachments are prepared, and one of them is appropriately selected and changed. Further, if dust or the like is sandwiched between the attachment and the main body and an electrical connection failure occurs, the touch sensor may not operate correctly and laser light may not be irradiated.
The problem to be solved by the present invention is how to change the energy density of the laser light and the light irradiation range by eliminating various problems associated with attachment replacement.

For this purpose, the present invention takes the following technical means.
In the first aspect of the present invention, an irradiation range changing cover for covering the laser beam emitting portion is provided in the main body of the laser hair removal apparatus, the cover is provided with two or more laser beam passage holes having different diameters, The laser hair removal apparatus is characterized in that one laser beam passage hole is made to face the emitting portion by moving the position.

  In the invention according to claim 2, the cover is formed in a hemispherical shape, and the opening edge of the cover is rotatably engaged with an annular hole provided in the main body of the laser hair removal device. The laser hair removal apparatus according to claim 1, wherein one laser beam passage hole is exposed to the laser beam.

  According to a third aspect of the present invention, there is provided a touch sensor on the cover in the vicinity of each of the two or more laser light passage holes, and two or more wires connected to the touch sensor for each of the light passage holes. 3. The laser hair removal apparatus according to claim 2, wherein a connector is provided inside the cover, and the position of the cover is moved to selectively connect with one of the connectors.

  According to a fourth aspect of the present invention, the hemispherical cover is attached so that a rotation axis thereof is inclined with respect to a longitudinal axis of the laser hair removal apparatus main body, and the laser beam emitting portion and the laser beam passage hole are provided. A rod-shaped light guide is provided between the laser hair removal apparatus main body and the longitudinal axis of the laser hair removal apparatus so that the opening surface is parallel to the longitudinal axis when each of the laser beam passage holes is located in front of the apparatus main body. 4. The laser hair removal apparatus according to claim 2 or 3, wherein the laser hair removal apparatus is arranged in a position.

  According to a fifth aspect of the present invention, an energization shift supporter having a hemispherical shape similar to the cover and rotating together with the cover is provided inside the cover, and the conductive shift supporter and the cover are electrically conductive. The laser hair removal apparatus according to any one of claims 2 to 4, wherein a body is arranged.

  According to the first aspect of the present invention, the irradiation range changing cover having two or more laser beam passage holes having different apertures is mounted on the main body of the laser hair removal device to cover the laser beam emitting portion, and the position of this cover is set. The laser beam irradiation range can be made variable without using an attachment for changing the irradiation range by moving one laser beam passage hole to the laser emitting portion by moving. This arrangement eliminates the use of attachments so they are not lost.

  According to the invention described in claim 2, since the irradiation range changing cover has a hemispherical shape, the contact portion between the laser hair removal device and the skin surface becomes a smooth shape, and the skin surface when the device is slid and used. The load on is reduced. Also, the entire laser hair removal device is compared with the case where the cover is operated linearly by engaging the annular hole provided in the laser hair removal device main body and rotating along the ring. Can be made compact.

  According to the third aspect of the present invention, the touch sensor is provided in the vicinity of each of the two or more laser light passage holes provided on the cover, and the two or more connectors that are connected to the touch sensor for each laser light passage hole are provided. By moving inside the cover, moving the position of the cover, and selectively conducting with one of the connectors, a laser for hair removal can be emitted only when it is in contact with the touch sensor. The epilation device can be used safely.

According to the fourth aspect of the present invention, the hemispherical cover is attached so that its rotation axis is inclined with respect to the longitudinal axis of the laser hair removal apparatus main body, and each of the laser beam passage holes is positioned in front of the apparatus main body. In this case, since the opening surface is arranged so as to be parallel to the longitudinal axis, the laser beam passage hole located in front of the apparatus main body 2 can be easily contacted with a site to be treated. Further, the other laser beam passage holes do not contact the skin and can be used smoothly.
Further, since a rod-shaped light guide is provided between the laser beam emitting portion and the laser beam passage hole at a right angle to the longitudinal axis of the laser hair removal device body, the treatment is performed from the laser beam passage hole located in front of the device body 2. The laser beam is irradiated straight toward the desired site.

  According to the invention described in claim 5, by providing the energization shift supporter that rotates together inside the cover, and arranging the conductor between the energization shift supporter and the cover, the wiring portion can be firmly fixed, The apparatus can be used stably for a long period of time without causing disconnection or the like.

1 is an overall perspective view of a laser hair removal apparatus according to an embodiment of the present invention. It is a front view of the laser hair removal apparatus of FIG. It is a sectional side view of the laser hair removal apparatus of FIG. It is a sectional side view of the state which rotated the irradiation range change cover and the laser beam passage hole for spot irradiation turned to the front. It is an operation | movement diagram of the laser hair removal apparatus of FIG. 1, (a) is the state which turned the laser beam passage hole for wide irradiation to the front, (b) is in the middle of rotation, (c) is the laser beam passage hole for spot irradiation. It is in a state facing the front. It is a side view of the laser hair removal apparatus for demonstrating the attachment state of an irradiation range change cover. It is explanatory drawing which shows the assembly method of the rotation part of the laser hair removal apparatus of FIG. 1, (a) is a perspective view of an irradiation range change cover, (b) is a perspective view of a rotation side conductor, (c) is an electricity supply shift supporter (D) is a perspective view of a stationary-side conductor. It is explanatory drawing which shows the switching method of electricity supply of FIG. It is the perspective view which looked at the irradiation range change cover of the state which removed the touch sensor from the back. It is the perspective view which looked at the electricity supply shift supporter from the back. It is a top view of the state which piled up the rotation side conductor on the electricity supply shift supporter. It is a sectional side view of the laser hair removal apparatus which concerns on other embodiment.

  Hereinafter, one embodiment of the present invention will be described with reference to FIGS.

  A laser hair removal apparatus 1 according to the present embodiment shown in FIG. 1 is equipped with an irradiation range changing cover 3 having two laser passage holes with different diameters on an apparatus body 2 made of engineering plastic such as ABS resin. The laser hair removal apparatus 1 is a handy type apparatus in which an adult female who is a main user holds with one hand, and has a vertically long rectangular parallelepiped shape with rounded corners, and is lightened. The apparatus main body 2 is equipped with a secondary battery and can be used repeatedly by charging, and can be used with the power cable removed during use. Although not shown, the connection terminal of the power cable is provided at the bottom of the apparatus main body 2.

A safety lock 8 is provided on the front surface of the apparatus main body 2 to prevent the laser hair removal apparatus 1 from being accidentally turned on. A power supply for turning on / off the hair removal apparatus 1 is provided on the rear surface although not shown. A switch and two adjustment buttons for adjusting the intensity of the laser light and the light of the flash lamp are provided.
This strength is, for example, five levels of level 1, level 2,..., Level 5 in order from the weakest, and the strength is given by the difference in irradiation time as follows. Level 1 irradiates flash lamp light for 0.5 seconds and laser light for 0.5 seconds. Level 2 irradiates flash lamp light for 0.75 seconds and laser light for 1.2 seconds. In level 3, the flash lamp light is irradiated for 1 second, and the laser light is irradiated for 1.8 seconds. In level 4, light from the flash lamp is irradiated for 1 second and laser light is irradiated for 2.4 seconds. Level 5 irradiates flash lamp light for 1 second and laser light for 3.0 seconds. In either case, the laser beam is irradiated for 0.5 seconds following the flash lamp light irradiation, and the overlap time of the flash lamp light irradiation and the laser light irradiation is about 0.2 seconds.
Further, a light irradiation switch 16 that is pressed when irradiating flash lamp light and laser light is provided on the side surface of the apparatus main body 2, and only when the switch 16 is pressed, the flash lamp light and laser light can be irradiated. Note that a control circuit S for controlling the irradiation and strength of the flash lamp light and laser light is provided inside the apparatus main body 2.

A hemispherical irradiation range changing cover 3 is mounted above the apparatus main body 2 so as to face obliquely upward. That is, the irradiation range changing cover 3 is attached with its rotation shaft 3 a inclined at an angle θ with respect to the longitudinal axis 2 a of the apparatus body 2. This angle θ is an acute angle, preferably about 45 degrees (see FIG. 6).
The irradiation range changing cover 3 is provided with two laser light passage holes 5 and 6. The centers of the rotating laser light passage holes 5 and 6 are arranged on a circumference overlapping with the rotation center of the hemispherical irradiation range changing cover 3, and are arranged by being distributed 180 degrees. The laser beam passage holes 5 and 6 are arranged so that the opening surface is parallel to the longitudinal axis 2a when the laser beam passage holes 5 and 6 are respectively positioned in front of the apparatus main body 2 (see FIG. 6). Equipping the irradiation range cover 3 means providing the cover 3 so that it cannot be removed when the user normally uses it. One of the laser beam passage holes is a wide irradiation laser beam passage hole 5, which is used when a wide range of hair parts such as legs and arms are processed. The other is a laser beam passage hole 6 for spot irradiation, which is used when processing a narrow hair region such as a finger. These two laser beam passage holes having different diameters, that is, the wide irradiation laser beam passage hole 5 and the spot irradiation laser beam passage hole 6 are provided, and a glass plate is fitted into each of the passage holes (FIGS. 3 and 4). reference).
The irradiation range changing cover 3 is configured to engage with an annular portion provided in the main body 2 of the laser hair removal device 1 and rotate clockwise and counterclockwise along the annular portion (see FIG. 5). .
In order to facilitate the rotation operation of the irradiation range changing cover 3, two projections 4 are provided on the cover, and the user puts his / her finger on the projections 4 to rotate the irradiation range changing cover 3. The irradiation range changing cover 3 is normally restricted by the rotation lock mechanism, but can be rotated by the rotation lock release lever 7.
The structure of this rotation lock mechanism is as follows.
A hemispherical energizing shift supporter 13 similar to the cover 3 is provided inside the irradiation range changing cover 3 (see FIG. 7C), and two recesses 13a and 13a are provided at the bottom of the energizing shift supporter 13. Are provided facing each other. The rotation lock mechanism includes a fitting plate 7 a integrated with the rotation lock release lever 7 and the energization shift supporter 13. The fitting plate 7 a is a plate-like member that can be moved in and out provided on the main body 2 side, and is biased toward the energization shift supporter 13 by a spring. The fitting plate 7a is locked in a state in which the fitting plate 7a is fitted in the recess 13a, and can be rotated by releasing the fitting.
A flat portion 5 a is provided in the vicinity of the wide irradiation laser beam passage hole 5 on the irradiation range changing cover 3 and on the peripheral side of the irradiation range changing cover 3.
The flat portion 5a and the glass plate of the wide irradiation laser beam passage hole 5 are formed substantially flush with each other.
Further, alignment marks 17 to 19 are provided at two predetermined positions on the front upper portion of the apparatus main body 2 and the peripheral portion of the irradiation range changing cover 3, respectively.

As shown in FIGS. 3 and 4, a laser emitting portion 11 that emits and emits laser light is provided in the main body 2 so as to irradiate the laser light perpendicularly to the longitudinal surface of the main body, and the laser emitting portion 11 is provided. An irradiation range changing cover 3 is provided so as to cover it. A rod-shaped light guide 10 is provided between the glass plate of the wide irradiation laser beam passage hole 5 and the laser emitting portion 11. A glass plate is also fitted in the spot irradiation laser beam passage hole 6. In addition, a flash lamp 12 for ensuring the illuminance and heat of the surface on which laser irradiation is performed is provided adjacent to the laser emitting portion 11.
A light leakage prevention cover 21 is provided above the cover 12a covering the flash lamp 12, and closes the passage hole 5 or 6 on the side where the light of the flash lamp and the laser light are not emitted.
Three touch sensors 9a are provided in the vicinity of the wide irradiation laser beam passage hole 5 so as to surround the passage hole 5 and provided in the vicinity of the spot irradiation laser beam passage hole 6. Three touch sensors 9 b are provided so as to surround the hole 6. When the flash lamp light and laser light are irradiated using the wide irradiation laser beam passage hole 5, it is confirmed that all three touch sensors 9a in the vicinity of the passage hole 5 are in contact with the skin. The control circuit S confirms the irradiation of the flash lamp light and laser light. Similarly, when irradiating flash lamp light and laser light using the spot irradiation laser beam passage hole 6, the light of the flash lamp and the light from the three touch sensors 9 b near the passage hole 6 are also detected. Laser light irradiation is possible. By this interlock control, there is no possibility that the light of the flash lamp and the laser light are accidentally irradiated to an unintended part, and the safety of the apparatus is improved.
Reference numeral 20 denotes a cover plate that covers the upper and left and right sides of the rotation lock release lever 7. The upper plate of the cover plate 20 has left and right ends projecting from the touch sensors 9a and 9b by a predetermined dimension in a side view, and on the table with the passage hole 5 or 6 located on the front side of the main body facing downward. Touch sensor 9a, 9b does not touch the table or the like. Further, since the central portion of the upper plate of the cover plate 20 is recessed, it does not interfere with the contact between the touch sensors 9a and 9b and the skin h when operating at the correct position with the elasticity of the skin.

  A heat sink is provided so as to wrap the laser emitting unit 11 in order to diffuse heat generated during operation of the laser emitting unit 11 by heat conduction and suppress degradation of performance. The heat sink is cast from aluminum or an alloy thereof having good thermal conductivity, and a plurality of through holes are provided to increase the surface area, thereby enhancing the heat dissipation effect.

  Although the shape of the irradiation range changing cover 3 is expressed as a hemispherical shape, this means that the cover is a partial shape of the sphere, and there is no problem even if it does not strictly use half of the sphere. . For example, there is no problem even if the sphere is divided into three equal parts in the axial direction passing through the center.

Further, as shown in FIG. 7, the two parts of the irradiation range changing cover 3 and the hemispherical energization shift supporter 13 similar to the cover 3 are fixed to each other, and the edge of the annular portion provided in the apparatus main body 2 is fixed. It is set as the structure which pinches | interposes, ie, the structure engaged. With this configuration, the irradiation range change cover 3 can be rotated along the ring, and the energization shift supporter 13 rotates together with the operation when the irradiation range change cover 3 rotates.
On the energization shift supporter 13, a groove for fitting the rotation-side conductor 14 that is wire-coupled to the touch sensor 9 is formed, and the irradiation range changing cover 3 is sandwiched between the conductor 14 (see FIG. 7B). Fix it. In addition, the connectors 15 a and 15 b that are energized to all the touch sensors for the laser passage holes 5 and 6 are fixed to face each other in the energization shift supporter 13.
As shown in FIG. 8, five plate-like conductors 151 and 152 are fixed to the connectors 15a and 15b, respectively. Three of them are electrically connected to the touch sensor 9a and the touch sensor 9b each having three one-to-one. The remaining two connectors 15a are connected to each other by a conductive wire. The remaining two connectors 15b are connected to each other via a resistor r (about 100 kΩ). The control circuit S detects this difference in resistance value and determines which of the wide irradiation laser beam passage hole 5 side and the spot irradiation laser beam passage hole 6 side is conducting.
When laser irradiation is performed using the laser beam passage hole 5 for wide irradiation with the above configuration, the connector 15a contacts the conductor provided in the apparatus body 2, and the signal of the touch sensor 9a is transmitted to the conductor 14 and It is sent to the control circuit S provided in the apparatus main body 2 through the connector 15a. On the other hand, when the laser beam passage hole 6 for spot irradiation is used, the connector 15b comes into contact with the conductor provided in the apparatus body 2, and the signal of the touch sensor 9b is sent to the control circuit S through the rotation side conductor 14 and the connector 15b. It is done.
As shown in FIG. 7D, reference numeral 24 denotes a fixed-side conductor provided on the main body, and includes five pins 24a which can be moved in and out and are urged toward the outside. The pin 24 a contacts the bottom of the plate-like conductor 151 or 152 of the connectors 15 a and 15 b by rotating the energization shift supporter 13 together with the irradiation range changing cover 3.

The rod-shaped light guide 10 is made of rod-shaped glass and extends to the vicinity of the glass plate fitted in the passage holes 5 and 6 (the gap between the rod-shaped light guide 10 and the glass plate is about 3 mm). Therefore, as shown in FIGS. 9 and 10, the irradiation range change cover 3 has an arcuate groove 22 connecting between the passage holes 5 and 6 so as not to hinder the rotation of the irradiation range change cover 3 and the energization shift supporter 13. The energizing shift supporter 13 is provided with arc-shaped holes 23 connecting the passage holes 5 and 6.
91 is a hole for fixing the touch sensor 9a, and 92 is a hole for fixing the touch sensor 9b. Reference numeral 153 denotes a long hole for fixing the plate-like conductor.

The laser beam is excited by flowing a current directly through a PN junction diode using a compound semiconductor such as GaAs (gallium arsenide). 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 6 W is applied to this diode. The emitted laser light has the effect of inducing a photoelectric reaction, a photomagnetic reaction, a photodynamic reaction, a photochemical reaction, a photoimmune reaction, a photoenzyme reaction, etc., and promotes the metabolism of living tissues through photobiological activation. Therefore, it has excellent reachability to the deep part of the skin.
Here, the principle of hair removal using a laser will be briefly described. Since the laser beam has a higher energy density than other light, the temperature of the irradiated portion can be raised relatively easily when irradiated to a living tissue. As a result, the laser light can induce a photothermal reaction that intentionally causes a modification of a protein at a desired site in the living tissue. Laser hair removal suppresses the growth of hair by irradiating a hair root such as body hair with laser light having a relatively high energy density and promoting the degeneration of proteins in the hair matrix cells. Thereby, a desired hair removal effect is obtained.

The flash lamp is a halogen lamp, and the wavelength of emitted light has a wide range from visible light to infrared light (about 450 to 1650 nm) with a peak at 950 nm.
In the present invention, the amount per unit area of the laser light and flash lamp light exiting the wide irradiation laser light passage hole 5 that strikes the skin, and the laser light and flash lamp light exiting the spot irradiation laser light passage hole 6. The rod-shaped light guide 10 is stretched to the vicinity of the glass plate fitted in the passage holes 5 and 6 so that the amount per unit area hitting the skin does not change, and a glass plate is fitted in the passage holes 5 and 6 instead of the lens. That is, since the rod-shaped light guide 10 is extended to the vicinity of the glass plate fitted in the passage holes 5 and 6, the laser light is irradiated to the skin with almost no diffusion. In addition, since the glass plate is fitted in the passage hole, the intensity of the flash lamp light per unit area of the skin is almost the same regardless of the size of the passage hole. Therefore, there is no difference in the feeling of use depending on the laser light irradiation range, and it can be used comfortably.

  Touch sensors 9a and 9b are provided in the vicinity of the laser beam passage holes 5 and 6 provided on the cover 3, and two or more connectors 15a for wiring connection to the touch sensors 9a and 9b for the respective laser beam passage holes 5 and 6 are provided. , 15b in the cover 3 and operating the cover 3, the control circuit S is selectively connected to either of the connectors 15a, 15b, and can be irradiated with laser light or flash lamp light. To do. With this configuration, only when the touch sensor in the vicinity of the laser beam passage hole facing the laser emitting unit 11 comes into contact with the skin, the laser beam for performing hair removal or the light of the flash lamp can be emitted, and the hair removal apparatus 1 can be safely operated. Can be used.

  Further, the energization shift supporter 13 that rotates together inside the cover 3 is provided, and the rotation-side conductor 14 is disposed between the energization shift supporter 13 and the cover 3, so that the wiring portion can be firmly fixed, disconnection, etc. It is possible to use the laser hair removal device 1 stably for a long period of time without causing any problems.

Next, the usage method of the laser hair removal apparatus 1 is demonstrated.
Before using the laser hair removal apparatus 1, the secondary battery provided in the laser hair removal apparatus 1 is charged. Charging is performed by connecting the power cord to a connection terminal provided at the bottom of the laser hair removal device 1. Check that the battery has been fully charged with the LED indicator and remove the power cord.

  When processing a wide range of body hairs such as legs, arms, and sides (see FIG. 5A), the irradiation range changing cover 3 is set so that the wide irradiation laser passing hole 5 is in front of the laser hair removal device 1. Rotate. When rotating, the protrusion 4 is rotated by putting a finger on the protrusion 4 with the rotation lock release lever 7 lowered. At this time, when the mark 17 on the upper front of the apparatus main body 2 and the mark 18 on the peripheral edge of the irradiation range changing cover 3 are matched to return the rotation lock release lever 7, the fitting plate 7 a provided on the main body 2 is brought into one recess 13 a. The connector 15a can be fitted and fixed at an appropriate position, and the connector 15a is electrically connected to the fixed conductor 24 provided on the main body.

Next, the safety lock 8 is removed and the power switch is activated. When the power switch is pressed once, the laser hair removal apparatus 1 is held by the control circuit S in a preparation state in which laser irradiation is possible. After adjusting to the desired intensity with the two adjustment buttons for adjusting the intensity of the laser beam, the wide irradiation laser passage hole 5 of the irradiation range changing cover 3 is brought into contact with the body hair part of the skin surface h (FIG. 6). This contact state is confirmed by the control circuit S built in the apparatus main body 2 via the touch sensor 9a. The signal from the touch sensor 9a acts as an interlock signal, and it is a necessary condition for laser irradiation that all the probes 9a are in contact. In this state, when the light irradiation switch 16 on the side surface of the apparatus body 2 is pressed, the light from the flash lamp is first irradiated onto the skin surface through the wide irradiation laser passage hole 5. Subsequently, the laser hair is irradiated to the hair part. The skin is warmed by the light of the flash lamp, and subsequently, it is difficult to release the heat of the laser that reaches the pores, and an excellent hair removal effect can be obtained.
The flat portion 5a is combined with the irradiation laser passage hole 5 to be a large-area contact portion, and serves as a guide for hair removal such as a side that is difficult to visually recognize.

  After performing the said treatment, the case (refer FIG.5 (c)) of processing the hair region of a narrow range, such as a finger | toe, is demonstrated continuously. With the rotation lock release lever 7 lowered, a finger is placed on the protrusion 4 to rotate the irradiation range changing cover 3 so that the laser irradiation hole 6 for spot irradiation faces the front of the laser hair removal device 1. At this time, when the mark 17 on the front surface of the apparatus main body 2 is aligned with the mark 19 on the peripheral edge of the irradiation range changing cover 3 and the rotation lock release lever 7 is returned, the fitting plate 7a provided on the main body 2 becomes the other recess 13a. And the connector 15b is electrically connected to the fixed-side conductor 24 provided on the main body. Thereafter, the same treatment as in the case of the wide irradiation laser passage hole 5 is performed. After performing the treatment, the laser hair removal apparatus 1 is turned off by pressing the power switch again, and is locked with the safety lock 8 and stored.

  As described above, the laser beam irradiation range can be changed without using an attachment for changing the irradiation range. Thus, since the attachment is not used in the laser hair removal apparatus 1 of this embodiment, it is not lost.

  Further, since the irradiation range changing cover 3 has a hemispherical shape, the contact portion between the laser hair removal device 1 and the skin surface becomes smooth, and the load on the skin surface is reduced when the device 1 is slid and used. . Compared with the case where the cover 3 is engaged with an annular hole provided in the apparatus body 2 of the laser hair removal device 1 and rotated along the ring, the cover is operated linearly. The entire laser hair removal apparatus 1 can be made compact.

Although the present invention has been specifically described above with reference to the embodiment, the present invention is not limited to this embodiment, and can be implemented in other forms without departing from the scope of the invention.
Although the laser hair removal apparatus 1 according to the present invention has been described centering on the combined use of laser light and flash lamp light, it can be similarly applied to an apparatus for hair removal using only laser light.
For example, as shown in FIG. 12, a flash lamp is not provided inside the apparatus main body 2, and a convex lens L is fitted in the spot irradiation laser beam passage hole 6 instead of a glass plate.
The laser beam emitted from the spot irradiation laser beam passage hole 6 becomes stronger than the laser beam emitted from the wide irradiation laser beam passage hole 5, and the intensity of the laser beam to be irradiated can be increased or decreased according to the irradiation site.
However, when the laser light and the light from the flash lamp are used in combination, the skin is warmed by the light from the flash lamp, and it is difficult to release the heat of the laser that has reached the pores.

  In another embodiment, the irradiation range changing cover 3 has a hemispherical shape. However, the irradiation range changing cover 3 may be formed in a board shape and mounted on the main device to slide the main device surface.

  Further, although the two laser passage holes 5 and 6 are provided in the irradiation range changing cover 3, it is possible to use three or more. In that case, the projection 4 provided on the irradiation range changing cover 3 is preferably provided between the passage holes.

However, the irradiation range changing cover 3 has a hemispherical shape, and its rotation shaft 3a is inclined by about 45 degrees with respect to the longitudinal axis of the apparatus main body 2 so that each of the laser beam passage holes 5 and 6 is positioned in front of the apparatus main body 2. In this case, by arranging the opening surface so as to be parallel to the longitudinal axis 2a, it is possible to easily contact the portion to be treated with the rotating laser beam passage hole located in front of the apparatus main body 2. In addition, other rotating laser light passage holes can be used smoothly without contacting the skin.
Further, when 2 to 4 laser beam passage holes are provided, the laser beam passage holes are not close to each other, and the irradiation range changing cover 3 can be smoothly rotated.

  The touch sensors 9a and 9b and the connectors 15a and 15b can be connected with a cable.

DESCRIPTION OF SYMBOLS 1 Laser hair removal apparatus 2 Apparatus main body 3 Irradiation range change cover 4 Projection part 5 Wide irradiation laser beam passage hole 6 Spot irradiation laser beam passage hole 7 Rotation lock release lever 8 Safety lock 9a Touch sensor (Wide irradiation laser beam passage hole) Neighborhood)
9b Touch sensor (near the laser beam passage hole for spot irradiation)
DESCRIPTION OF SYMBOLS 10 Bar-shaped light guide 11 Laser beam emission part 12 Flash lamp 13 Current supply shift supporter 14 Conductor 15a Connector (thing connected with the touch sensor 9a)
15b connector (conducted with touch sensor 9b)
16 Light switch

Claims (5)

Equipped with a laser hair removal device body with an irradiation range change cover that covers the laser beam emission part,
The cover is provided with two or more laser light passage holes having different apertures,
A laser hair removal apparatus, wherein the laser beam passing hole is made to face the emitting portion by moving the position of the cover. Forming the cover into a hemispherical shape;
The opening edge is rotatably engaged with an annular hole provided in the main body of the laser hair removal device,
The laser hair removal apparatus according to claim 1, wherein one laser beam passage hole faces the front side of the emission unit. A touch sensor is provided on the cover and in the vicinity of each of the two or more laser beam passage holes,
The cover has two or more connectors for wiring connection to the touch sensor for each laser beam passage hole,
The laser hair removal apparatus according to claim 2, wherein the laser hair removal apparatus is selectively connected to one of the connectors by moving the position of the cover. The hemispherical cover is attached so that its rotation axis is inclined with respect to the longitudinal axis of the laser hair removal apparatus main body, and a rod-shaped light guide is disposed between the laser light emitting portion and the laser light passage hole. Provided perpendicular to the longitudinal axis of the device body,
The laser hair removal apparatus according to claim 2 or 3, wherein when each of the laser beam passage holes is located in front of the apparatus main body, the opening surface is parallel to the longitudinal axis. . Inside the cover, a hemispherical shape similar to this cover is provided, and an energizing shift supporter that rotates together with the cover is provided,
The laser hair removal apparatus according to any one of claims 2 to 4, wherein a conductor is disposed between the energization shift supporter and the cover.

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