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Laser shaving device

A laser, laser source technology, applied in optics, devices for washing hair or scalp, optical components, etc., can solve the problems of unsuitable razors for daily use, skin carbonization, etc., to avoid the risk of cutting the skin and increase the service life. , no noise effect

Pending Publication Date: 2018-07-17
李明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The laser is directly irradiated on the human skin, and the laser power density exceeds 200W / cm 2 It is easy to cause damage such as skin carbonization, and the device is not suitable for daily use as a shaver

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0042] In this embodiment, the laser source 1 adopts 4 C-mount packaged side-emitting semiconductor lasers, arranged in a line at equal intervals, such as figure 2 shown.

[0043]The width of the light-emitting surface of the edge-emitting semiconductor laser is on the order of microns, and the light-emitting angle is inconsistent in the direction of the fast axis and the slow axis, and the difference is relatively large, and the emitted far-field spot is elliptical. The laser wavelength is 810nm, the rated maximum laser power is 1W, and the laser shaping unit 2 adopts a cylindrical lens 5, such as image 3 As shown, along the direction of the fast axis of the laser, the beam is converged and imaged, and the light-emitting surface of the laser is imaged above the shaving surface 3 in the form of a linear laser spot 8, and the laser in the direction of the slow axis is not affected.

[0044] The four cylindrical lenses 5 are fixed to the casing 7 through the electric actuatio...

Embodiment 2

[0047] In this embodiment, the laser source 1 adopts 3 surface-emitting semiconductor lasers, the size of the light-emitting surface is about 1mm*0.6mm, the laser wavelength is 808nm, and the maximum power is 2W; the laser shaping unit 2 adopts an aspheric positive lens 12 and an aspheric cylindrical lens 5 combinations such as Figure 4 As shown, the aspheric positive lens 12 forms a reduced real image of the laser source 1, after reducing the laser light-emitting surface, it is converged in one direction by the aspheric cylindrical lens 5, and an image of the same size is formed in the width direction. The upper part of the whisker surface 3 converges into a linear laser spot 8, and the spot length after the superposition of the three laser spots is 3cm, and the width is 200um.

[0048] The aspherical cylindrical lens 5 is fixed together with the housing 7 through the electric actuation retractor 6. The electric actuation retractor 6 is a superimposed polymer actuator. 8 ca...

Embodiment 3

[0051] In this embodiment, the laser source 1 adopts an optical fiber coupling output mode, the output end face of the optical fiber is 200um, and the laser power is 2W. The laser shaping unit 2 adopts a cylindrical lens 5 to image the laser spot output from the output surface of the optical fiber on the shaving surface 3. It is a linear spot 8, the spot width is 200um, and the spot length is 1cm. The beard 9 is cut off at the intersection with the laser spot 8, and the beard section after laser cutting is trimmed with the sharp edge of the shaving face 3 again.

[0052] Except for the form of the above-mentioned laser source, other structures are the same as the first embodiment.

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Abstract

The present invention discloses a laser shaving device. The device comprises a laser source, a laser shaping unit and a shaving surface; the laser source, the laser shaping unit and the shaving surface are arranged in order, after the laser source is subjected to imaging through the laser shaping unit, linear laser light spots are gathered above the shaving surface, and beards are cut off at intersection positions of the laser light spots. The shaving surface is a flexible surface and can be bent by contacting skin, the laser shaping unit is movable to allow the laser light spots to generate up-and-down displacement along the bending of the shaving surface so as to maintain a good shaving effect. The laser shaving device increases lifting laser linear light spots on the basis of an original manual shaver, and is taken as a 'shaver' for usage so as to improve a shaving effect, reduce the sharpness requirement of a blade of the shaver, prolong the service life of the shaver and avoid therisk of cutting into skin when shaving is performed.

Description

technical field [0001] The invention relates to a laser shaving device. Background technique [0002] At present, the shaving devices on the market are mainly electric shavers and manual blade shavers. Electric shavers are noisy and the blades are not easy to clean; Risk of cuts and short blade life requiring frequent replacement. [0003] The prior art discloses a hair shortening device, which adopts a laser source, generates multiple focal points after shaping, and directly irradiates the skin to form a laser-induced optical destruction phenomenon in the hair tissue, so as to achieve the purpose of shortening the hair and damage the skin hair follicles , to achieve permanent hair removal, the laser power density threshold reaches 4×10 11 W / cm 2 Magnitude. The laser is directly irradiated on the human skin, and the laser power density exceeds 200W / cm 2 It is easy to cause skin carbonization and other damage problems, and the device is not suitable for daily use as a sh...

Claims

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Application Information

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IPC IPC(8): G02B27/09A45D26/00
CPCA45D26/00G02B27/0911G02B27/0955G02B27/0966
Inventor 李明
Owner 李明
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