JP2000217939A - Laser beam radiation device for laser cosmetic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide cosmetic treatment which improves its radiation efficiency of laser beam. SOLUTION: A pedestal 12 as a band plate shaped heat sink is arranged on a soft and resilient sheet member 11 which is made of plastic in drainboard- shape. Both ends of the pedestal 12 are screwed through a screw patch member 13 that keeps distance between the pedestal 12 and the sheet member. A cutaneous patch member 14 that keeps a distance between the cutaneous patch member and the skin is installed under the sheet member 11 along a lateral direction of the both ends. Many long and lengthwise holes are punctured at the pedestal 12 then laser diodes 16 are inserted and engaged with being directed their emission faces downward respectively. Parts of the sheet member 11 that opposed to the emission face of the laser diodes 16 are opened then ball lens 17 are installed. Laser beam that radiates to skin is reflected to a lower face of the sheet member 11 so that laser beam is diffused to a wide range. Many air holes are punctured on a surface of the sheet member 11 and blast air from an air tube that is opened at a void between the sheet member and the pedestal is injected from the air holes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser cosmetic device for irradiating a laser beam of a semiconductor laser to a skin surface to perform treatments such as beautiful skin, slimming, hair loss, and hair growth.

[0002]

When the skin from which hair has been removed with a depilatory cream is irradiated with laser light, the laser light is absorbed by melanin in the epidermis and generates heat, causing protein degeneration in the skin tissue. As a result, the sebaceous glands and the dermal papilla are damaged, and the hair follicle tissue is hardened to exert a hair removal effect in which the growth of hair is suppressed.

[0003] Alternatively, when abnormal pigment cells scattered in the epidermis or dermis of the skin such as spots and freckles are irradiated with laser light, the abnormal pigment cells generate heat and are dispersed into fine particles.
The dispersed abnormal pigment cells float on the surface or become waste products, are absorbed by blood vessels and lymph vessels, and disappear, thereby exhibiting a beautiful skin effect to restore normal color skin.

[0004] When performing beauty treatment such as hair removal and beautiful skin by irradiating a laser beam in this way, waste hair, stains,
It is necessary to irradiate laser light evenly over a wide area of the skin such as freckles.

However, the semiconductor laser used for cosmetic treatment has a very small light emitting section cross section of several μm to several tens μm, so that a parallel thin linear beam having high directivity such as a He—Ne laser can be used. Not 30-45
Widely spreads at an angle of °. Therefore, the light is condensed by a lens in order to concentrate the power density, but the beam diameter near the focal point is considerably reduced to 1 to 2 mm. For this reason, when trying to irradiate the laser light evenly over a wide area of the skin with one beam, the beam diameter is small, so that it takes time and effort, and it takes time and labor.

Accordingly, the present invention increases the efficiency of laser light irradiation by arranging a large number of semiconductor lasers in a plane and irradiating a large number of laser lights at once over a wide area of the skin, thereby reducing the labor required for cosmetic treatment. The purpose is to reduce the time.

[0007]

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

[0008] That is, the invention of claim 1 is a laser cosmetic device which performs a treatment such as beautiful skin, slimming, hair loss and hair growth by irradiating the skin surface with a laser beam of a semiconductor laser.
A large number of laser diodes are arranged on the surface of a bendable planar member, and a spacer that keeps the distance from the skin surface is provided on the planar member, and the laser beams of the multiple laser diodes are irradiated at a time over a wide area of the skin. A laser beam irradiation device characterized by the following. A second aspect of the present invention is the laser beam irradiation apparatus according to the first aspect, wherein a spherical lens is provided in front of a light emitting surface of the laser diode. The invention according to claim 3 is the laser light irradiation apparatus according to claim 1, wherein the surface of the planar member is formed by a light reflector. According to a fourth aspect of the present invention, there is provided the laser light irradiation apparatus according to the first aspect, further comprising a blower for blowing air to the skin surface to be irradiated with the laser light. The invention according to claim 5 is the laser light irradiation device according to claim 1, wherein the laser diode is mounted on a heat sink for cooling.

[0009]

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

FIG. 1 shows a configuration diagram of a laser cosmetic device embodying the present invention. The laser beauty device connects the laser beam irradiation device 1 and the control box 2 via a cable 3,
The power cord 4 is connected to the control box 2.

The control box 2 has an operation panel P on the front side, and incorporates a laser oscillator (not shown) and a compressor (not shown) and a control circuit for timer control of laser irradiation and air blowing.

The operation panel P is used to turn on / off the power, set the irradiation time, set the treatment time, start and stop the treatment, and the like.

For setting the irradiation time, a very short count value of 1 to 6 seconds is set in the timer so as not to cause transient damage to the skin. In setting the treatment time, a timer is set to a count value of 5 to 60 minutes appropriate for normal use so as not to damage the skin due to long use.

The cable 3 includes an air tube connected to a compressor (not shown) and a lead wire connected to a laser oscillator and a control circuit.

FIGS. 2 to 4 show a front view, a longitudinal sectional view and a transverse sectional view of a laser beam irradiation apparatus embodying the present invention. In the laser beam irradiation apparatus 1, a large number of strip-shaped pedestals 12 as heat sinks are arranged in a longitudinal direction on a flexible and elastic plastic sheet member 11 along the length direction. The pedestal 12 is screwed at both ends via screwing members 13 that maintain the distance from the sheet member 11.

Below the sheet member 11, a skin contact member 14 for keeping a distance from the skin along the width direction at both ends is attached. The skin contact member 14 is formed of a flexible elastic material, and when pressed against an arm or a leg, is integrated with the sheet member 11 and is bent in close contact with the skin.

A case 15 is mounted on the upper side of the pedestal 12 to cover the entire sheet member 11 and the pedestal 12. Also,
The case 15 is provided with a number of ventilation grooves (not shown) to release heat generated inside.

A number of vertical holes are formed in the pedestal 12 along the length direction, and a laser diode 16 is inserted into each of the pedestals 12 with the light emitting surface facing down.

The sheet member 11 includes a laser diode 16
The portion facing the light emitting surface is opened, and the spherical lens 17 is attached so that the peripheral edge of the opening protrudes. The lower surface of the sheet member 11 has a mirror-like surface, reflects the laser light irradiated on the skin, and diffuses the laser light over a wide range.
A large number of air holes a are formed in the surface of the sheet member 11, and jet air from an air tube (not shown) opened in a gap between the sheet member 11 and the pedestal 12 is blown out therefrom.

The spherical lens 17 condenses the laser light of the laser diode 16 having a large spread angle with a short focal length.
Focus the laser beam power density on the skin surface.

As the laser diode 16, a semiconductor laser is used in which a laser is oscillated by passing a current directly through a PN junction diode using a compound semiconductor such as GaAs (gallium arsenide) to generate laser oscillation. The semiconductor laser has a peak wavelength of 600 to 1600 nm and an optical output of 5 to 500 mW, has good thermal efficiency, and causes a sufficient photothermal reaction on the skin. In addition to the thermal reaction, there are photo-electric reaction, photo-magnetic reaction, photo-dynamic reaction, photo-chemical reaction, photo-immune reaction, photo-enzyme reaction, etc. Increase the absorption of water and blood,
Has excellent skin penetration.

The pedestal 12 diffuses heat generated during the operation of the laser diode 16 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.

In the laser beam irradiation apparatus of the present invention having the above-described configuration, when performing a treatment, first, the operation panel P is operated to set the irradiation time and the treatment time. In the case of hair removal, a hair removal cream is applied to unneeded hair such as arms and legs to be treated and the hair on the surface is dissolved and removed in advance. Next, as shown in FIG.
While holding both ends of the case 15 of the laser beam irradiation device 1 with hands, the lower sheet member 11 is pressed against a waste hair portion such as an arm or a leg. Thereby, the sheet member 11 is deformed, and FIG.
As shown in (1), it is curved inward, and covers one side of the arm or leg so as to wrap around one side of the arm or leg while keeping the distance to the skin constant by the skin contact member 14. In this state, when the start of the treatment is designated, the laser beam is applied at once to a wide area of the skin for the set number of seconds. At the same time, the sheet member 11
Air is blown out from the ventilation holes a to cool the skin. Thereafter, the irradiation of the laser beam is stopped for 3 seconds. The air blowing continues during the pause. The above irradiation and pause are repeated for the set treatment time.

[0024]

As described above, in the laser beam irradiation apparatus of the present invention, a large number of laser diodes are arranged on the surface of a bendable planar member, and the planar member is provided with a spacer for keeping a distance from the skin surface. To irradiate a large number of laser beams at once over a wide area of the skin. Therefore, according to the present invention, the treatment efficiency of hair removal, beautiful skin, and the like that require irradiation of a laser beam over a wide area of the skin is greatly improved.

In the laser beam irradiation device of the present invention, a spherical lens is provided in front of the light emitting surface of the laser diode. Therefore, according to the present invention, since the laser light of the semiconductor laser having a large spread angle is focused at a short focal length, the power density of the laser light is concentrated on the skin surface.

In the laser irradiation apparatus of the present invention, the surface of the planar member is formed by a light reflector. Therefore, according to the present invention, since the laser beam irradiated on the skin is reflected and diffused,
The photothermal effect of the laser light spreads over a wide area of the skin.

The laser beam irradiating apparatus of the present invention has a blowing means for blowing air to the skin surface irradiated with the laser beam. Therefore, according to the present invention, since the skin surface irradiated with the laser beam is appropriately cooled to prevent overheating, a sufficient photothermal effect can be given to the skin.

In the laser irradiation apparatus of the present invention, a laser diode is mounted on a heat sink for cooling. Therefore,
According to the present invention, since a large amount of heat generated when a large number of laser diodes operate at one time is diffused by heat conduction, it is possible to suppress a decrease in the performance of the laser diode and to perform a large amount of irradiation.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a laser cosmetic device embodying the present invention.

FIG. 2 is a front view of a laser beam irradiation device embodying the present invention.

FIG. 3 is a cross-sectional view of FIG.

FIG. 4 is a longitudinal sectional view of FIG.

FIG. 5 is an explanatory diagram of a method of using a laser beam irradiation device embodying the present invention.

FIG. 6 is a cross-sectional view of the laser light irradiation device curved inward.

[Description of Signs] 1 Laser beam irradiation device 11 Sheet member 12 Pedestal 13 Screw contact member 14 Skin contact member 15 Case 16 Laser diode 17 Ball lens a Vent hole

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4C082 RA01 RC09 RE01 RE34 RE35 RE36 RE39 RG02 RG06 RL02 RL16

Claims (5)

[Claims] 1. A laser cosmetic device for performing treatment such as beautiful skin, slimming, hair loss, and hair growth by irradiating a laser beam of a semiconductor laser to a skin surface, wherein a large number of laser diodes are arranged on the surface of a bendable planar member. In addition, a laser beam irradiating apparatus characterized in that a spacer for keeping a distance from the skin surface is provided on the planar member, and the laser beams of a large number of laser diodes are irradiated at once over a wide area of the skin. 2. The laser beam irradiation apparatus according to claim 1, wherein a spherical lens is provided in front of a light emitting surface of said laser diode. 3. The laser beam irradiation apparatus according to claim 1, wherein the surface of said planar member is formed of a light reflector. 4. The laser beam irradiation apparatus according to claim 1, further comprising a blower for blowing air to the skin surface to be irradiated with the laser beam. 5. The laser beam irradiation apparatus according to claim 1, wherein said laser diode is mounted on a heat sink for cooling.