JPH05509028A - hair cutting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Hair cutting device・ FIELD OF THE INVENTION The present invention generally relates to hair cutting devices.

Background of the invention There are various types of hair cutting devices, which use one or more razor blades along the surface of the skin. The opposing blades are driven by a scissor-type actuator using an electrically driven vibrating element. There are things to do.

U.S. Pat. No. 3,934,115 discloses that a slot is describes an electric scorch method and apparatus in which a rim is formed and the rim is heated; In this device, the hair passed through the slot is burned off.

Summary of the invention It is an object of the present invention to provide an improved hair cutting device.

In accordance with a preferred embodiment of the present invention, a housing and a cutout disposed within the housing are provided. A laser device configured to cut hair by emitting a beam of light that hits the hair to be cut A hair cutting device is provided.

In accordance with a preferred embodiment of the invention, the laser device is strongly absorbed by the hair being cut; It is designed to emit a ray of light with a wavelength that is not strongly absorbed by adjacent physiological tissues. Ru.

In accordance with one preferred embodiment of the invention, the wavelength of the light is such that it is generally not absorbed by human skin. It is a matter of degree.

Preferably, the hair cutting device is used at a wavelength of 0.8 microns.

In accordance with a preferred embodiment of the present invention, the wavelength used by the hair cutting device is such that only hair of a certain color can be cut, e.g. For example, only white or gray hairs are cut, and the remaining hairs are selected not to be cut. Ru. A wavelength of 0.8 microns is suitable for this purpose. This kind of hair cutting device It is particularly useful for automatically cutting off unwanted white or gray hair.

According to a preferred embodiment of the invention, the hair cutting device also includes an optical device for directing the light beam onto the hair. have a means of transportation. Optical displacement means include refractive and reflective means with optical capabilities. can have

Further, according to a preferred embodiment of the present invention, the material is cut into pieces by a laser beam. A hair collecting device that collects loose hair may be disposed inside the housing. , an electrostatic hair collection device may be provided in place of or together with the suction device.

Brief description of the drawing FIG. IB depicts a laser hair cutting device constructed and operative in accordance with a preferred embodiment of the present invention. Diagram showing usage.

FIG. 2A shows a laser razor device constructed and operative in accordance with a preferred embodiment of the present invention. Schematic cross-sectional view.

FIG. 2B is a schematic cross-sectional view taken along line IIB-IIB in FIG. 2A.

FIG. 3A shows a laser razor constructed and operative in accordance with another preferred embodiment of the present invention. A schematic cross-sectional view of the device.

FIG. 3B is a schematic cross-sectional view taken along line IIIB-IIIB in FIG. 3A.

FIG. 4 shows a laser hair cutting device constructed and operative in accordance with another preferred embodiment of the present invention. Schematic cross-sectional view.

Detailed description of a preferred embodiment FIGS. LA, 2A, and 2B illustrate a system constructed and operative in accordance with one preferred embodiment of the present invention. A laser razor device is illustrated. The second laser razor device is preferably , having a housing 1o typically made of plastic or other suitable material. Ru. A laser device 12 is disposed within the housing 10 . laser device 12 preferably includes a laser source 14 and a laser beam produced by the laser source 14. and a laser beam moving optical system 16 that directs the laser beam toward the hair 19 to be cut. In accordance with one preferred embodiment of the invention, laser source 14 is a gallium peroxide laser, such as a gallium peroxide laser. It has a semiconductor laser and is preferably strongly absorbed by hair, such as facial hair, but not by skin. Emits an output laser beam at a wavelength that is not strongly absorbed by surrounding physiological tissues such as skin It works like this. One preferred wavelength is 0.8 microns, but other wavelengths are also possible. I can think of something suitable.

By appropriately selecting the operating wavelength of the laser source 14, the laser beam 18 can be The laser beam evaporates and carbonizes the hair at the point where it hits the hair root. You can tell which part is hit by the laser beam and which hairs extend outward from the position where the laser beam hits. . In this way, white or gray hair is automatically removed with a simple combing motion. It will be done.

The laser beam moving optical system 16 preferably includes a reflective optical system such as [20] and a laser beam moving optical system. It has a refractive optical system such as a lens 22. The laser beam moving optical system 16 can be replaced. Other configurations are possible, including suitable optical elements that can be used.

In accordance with a preferred embodiment of the invention, the laser beam is absorbed and the laser beam is imprecise. A laser beam absorber 30 is provided to prevent irradiation.

Referring to FIGS. 3A and 3B, the laser beam is reflected multiple times in the shaved area. A preferred embodiment of a laser shaving device having a laser beam moving optical system having the following features: Illustrated. In this case, the absorber 30 has at least two mirrors 32, preferably , is replaced by a mirror assembly with a rectangular outline, and this mirror is It acts to provide a pattern that goes back and forth and covers a relatively wide range. It is effective in cutting hair. In this example, the laser beam on #i20 The initial incidence of is such that it causes a reflection that is not perpendicular to the plane of R32. I understand.

In accordance with a preferred embodiment of the invention, the laser beam 18 strikes and cuts the material into pieces. A device will be installed to collect the hair. A device for collecting loose hair is preferably has an electrically operated suction device 24, such as a suction blower, but not an electrostatic device. Other suitable hair collection devices may be substituted.

Laser source 12 and suction machine 24 are powered by a suitable power source 26. power supply 26 uses a battery or alternatively uses an external power source.

Referring to FIG. 4, a hair cutting device constructed and operative in accordance with a preferred embodiment of the present invention. is illustrated. This device includes the elements in the embodiments of FIGS. 2A, 2B, 3A and 3B. The implementation of FIG. In the example, laser beam 18 focused by lens 22 strikes hair 42. A seed part 40 is arranged to substantially arrange the hair 42 of a person's head into one plane. It is. Lens 22 can alternatively be omitted. Another alternative is positioning or contouring the laser beam and directing it along multiple optical paths; Additionally or alternatively, a hair thinning function can be provided, thereby reducing the desired proportion of hair. Only can be cut by laser beam.

Those skilled in the art will appreciate that the present invention is not limited to what has been described and illustrated in detail above. 1. The scope of the invention is limited only by the claims. .

FIG, 2A FIG, 3A Summary book a housing, which is disposed within the housing and emits a beam of light that hits the hair to be cut; A hair cutting device comprising a laser means for cutting hair with a recording light beam.

Claims (13)

[Claims] 1. a housing, and a light beam disposed within the housing that emits a beam of light that impinges on the hair to be cut. , a hair cutting device comprising laser means for causing said light beam to cut the hair. 2. The laser means is strongly absorbed by the hair to be cut and is absorbed by the adjacent physiological tissue. The hair cutting device according to claim 1, which operates to emit light at a wavelength that is not strongly absorbed by the hair. Place. 3. 3. The wavelength of the light beam is a wavelength that is not substantially absorbed by human skin. Hair cutting device. 4. Although the wavelength of light is generally absorbed by hair in a predetermined color range, 4. The coloring agent according to claim 1, which is generally not absorbed by hair outside the coloring range. Hair cutting device. 5. The wavelength of the light is commonly absorbed by and cuts white and gray hair. 5. The hair cutting device according to claim 4, wherein the wavelength is not absorbed by hair of other colors. 6. Hair cutting according to any one of claims 2 to 5, wherein the wavelength of the light beam is 0.8 microns. Device. 7. Claim 1 wherein the laser means comprises optical displacement means for directing the beam of light to the hair. 6. The hair cutting device according to any one of Items 6 to 9. 8. 7. The optical moving means comprises refractive and reflective means having optical capabilities. Hair cutting device as described. 9. Collect the loose hair cut by the laser beam in the housing The hair cutting device according to any one of claims 1 to 8, further comprising hair collecting means. 10. The hair cutting device according to claim 9, wherein the hair collecting means includes a suction device. 11. The optical movement means comprises means for causing multiple reflections of the laser beam. The hair cutting device according to any one of claims 7 to 10. 12. The optical movement means may include means for focusing the laser beam. The hair cutting device according to any one of claims 7 to 11. 13. Strongly absorbed by hair of a predetermined color range that is the hair to be cut It is strengthened by hair of a color outside the above-determined color range that you do not want to cut. providing a laser beam having a wavelength that is not absorbed; and applying the laser beam to the hair. to cut hair of a predetermined color range, but cut hair of a color outside the predetermined color range. How to select a color and cut the hair without cutting the hair.