JP2001029125A - Laser depilation probe, - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laser depilation probe capable of efficiently depilating a user's skin with a beautiful finish. SOLUTION: Plural semiconductor laser diodes 3 for irradiating laser beams are arranged on both sides of a tweezing actuator 2 with a rotary disk or clasping nails of an electric tweezer. Each semiconductor laser diode 3 is inserted into a through hole (a) bored in a heat sink 4 and a spherical lens 5 is disposed in front of the light emitting surface of the semiconductor laser diode 3. The spherical lens 5 collects laser beams from the semiconductor laser diode 3, forming a beam waist at the tip of the tweezing actuator 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a laser hair removal probe for performing hair removal treatment by irradiating a skin surface with a laser beam.

[0002]

In the laser hair removal, laser light is applied to the skin after removing the unwanted hair to cause protein degeneration in the hair papilla and sebaceous glands, thereby suppressing the growth of hair. As a method of removing waste hair, there are methods such as pulling out with tweezers, dissolving with hair removal cream, peeling off with hair removal tape, but shaving with a razor damages the skin,
It is painless, safe and hassle-free.

[0003] On the other hand, hair removal is painful, but since there is no shaving left compared to shaving with a razor, the finish is clean and hair grows slowly. Is optimal. In addition, laser hair removal needs to be repeatedly performed continuously for a long period of time so that a change appears only about three months after the application of the laser beam. However, since laser hair removal requires removing unwanted hair each time before treatment, this is a troublesome and time-consuming operation, and has been a bottleneck in performing laser hair removal continuously for a long period of time.

Accordingly, the present invention provides a laser hair removal probe which has a hair removal means provided on a probe for irradiating a laser beam and irradiates the skin with a laser beam while pulling out hair on the surface of the skin, so that the finished hair is clean and the hair can be efficiently removed. It is made for the purpose of doing.

[0005]

In order to achieve the above object, the present invention is configured as follows.

More specifically, a first aspect of the present invention is a laser hair removal probe comprising a hair removing means provided at a tip of a probe for irradiating a laser beam, and irradiating the skin with a laser beam while pulling out hair on the skin surface. is there. Claim 2
The invention of claim 1 is the laser hair removal probe according to claim 1, wherein the hair removal means is an electric hair removal device. According to a third aspect of the present invention, there is provided a condensing lens for forming a beam waist of the laser beam on a skin surface, and a distance between the condensing lens and the skin surface is kept constant via the hair removing means. Item 1
It is a laser hair removal probe of the description. The invention of claim 4 is
2. The laser hair removal probe according to claim 1, further comprising a skin surface movement detecting means for detecting a movement of the skin surface of the probe, and irradiating a laser beam in conjunction with the movement of the probe on the skin surface.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a front view and a partially cutaway side view of a laser hair removal probe embodying the present invention.
In the laser hair removal probe 1, a plurality of semiconductor laser diodes 3 for irradiating laser light are arranged on both sides of a hair removal actuator 2 in which a rotating disk or a holding claw of an electric hair removal device is arranged. The semiconductor laser diode 3 has a through hole a inserted into the heat sink 4 and is fitted therein, and a spherical lens 5 is disposed in front of the light emitting surface thereof. The spherical lens 5 condenses the laser light of the semiconductor laser diode 3 to form a beam waist at the tip of the hair removal actuator 2. Note that the semiconductor laser diodes 3 may be arranged on only one side of the hair removal actuator 2.

The semiconductor laser diode 3 is inserted into the heat sink 4 as shown in FIG.
And connected to the entrance end of the large diameter optical fiber 7 through
The large-diameter optical fiber 7 is branched into a large number of small-diameter optical fibers 9 via a melt-stretched optical coupler 8, and their emission ends face the rear of the spherical lens 5, and the hair removal actuator 2
May be arranged on both sides. The coupling module 6 squeezes outgoing light of the semiconductor laser diode 3 with a coupling lens (not shown) and causes the light to be incident at an angle smaller than the light receiving angle of the large-diameter optical fiber 7.

Since the spherical lens 5 has a shorter focal length than an ordinary lens, the light power can be narrowed down to a small and narrow range. Conversely, from the position beyond the focal point, the light beam spreads at the same angle, and the light power is dispersed over a wide range. For this reason, at a position beyond the focal point, the energy density is reduced and the optical power is reduced, so that there is less danger of damaging the living body even if it is erroneously irradiated.

The hair removal actuator 2 functions as a spacer, and maintains the distance between the ball lens 5 and the skin surface constant so that the beam waist of the laser beam condensed by the ball lens 5 just comes to the skin surface. I do.

The heat sink 4 diffuses heat generated during operation of the semiconductor laser diode 3 by heat conduction, thereby suppressing a decrease in performance. For this reason, aluminum or an alloy thereof having good heat conduction efficiency is cast, and several dummy through holes are provided to enhance the heat radiation efficiency.

The semiconductor laser diode 3 is made of GaAs
(Gallium arsenide) and other PN junction diodes using a semiconductor such as a semiconductor are excited by passing a current directly, and a laser beam with a peak wavelength of 600 to 1600 nm and an optical output of 5 mW to 3 W is output, and sufficient photothermal reaction on the skin is achieved. Wake up. Also,
In addition to the thermal reaction, it causes a photoelectric reaction, a magnetooptical reaction, a photodynamic reaction, a photochemical reaction, a photoimmune reaction, a photoenzymatic reaction, etc., and promotes the metabolism of living tissue by photobiological activation to enhance skin blood circulation. There is no action to damage living tissue at an appropriate power density, and there is no danger of causing skin damage.

The laser hair removal probe of the present invention is configured as described above. When performing hair removal treatment, first, the power is turned on, the electric hair removal device is driven, and the tip of the hair removal actuator 2 is pressed against the skin. Move slowly. In conjunction with the movement of the probe, the semiconductor laser diode 3 on the opposite side of the movement direction is turned on, whereby the skin from which the hair has been pulled out is constantly irradiated with laser light.

[0015]

As described above, the laser hair removal probe of the present invention is provided with a hair removal means at the tip of the probe for irradiating the laser beam, and irradiates the skin with the laser beam while pulling out the hair on the skin surface. Therefore, according to the present invention, since hair removal and laser beam irradiation to be performed before laser hair removal can be performed at the same time, the efficiency of hair removal treatment is improved,
The finish is clean and effective hair removal treatment can be performed.

[Brief description of the drawings]

FIG. 1 is a front view of a laser hair removal probe embodying the present invention.

FIG. 2 is a side view in which a part of FIG. 1 is cut away.

FIG. 3 is a configuration diagram of a probe that irradiates a laser beam linearly using an optical fiber.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laser hair removal probe 2 Hair removal actuator 3 Semiconductor laser diode 4 Heat sink 5 Ball lens 6 Coupling module 7 Large diameter optical fiber 8 Optical coupler 9 Small diameter optical fiber a Through hole

Claims (4)

[Claims] 1. A laser hair removal probe comprising a hair removal means at the tip of a probe for irradiating laser light, and irradiating the skin with laser light while pulling out hair on the skin surface. 2. The laser hair removal probe according to claim 1, wherein said hair removal means is an electric hair removal device. 3. A converging lens for forming a beam waist of the laser beam on a skin surface, wherein a distance between the converging lens and the skin surface is kept constant via the hair removing means. The laser hair removal probe as described in the above. 4. The laser hair removal probe according to claim 1, further comprising a skin surface movement detecting means for detecting a movement of the probe on the skin surface, and irradiating a laser beam in conjunction with the movement of the probe on the skin surface. .