CN116459454A - Skin care device - Google Patents

Skin care device Download PDF

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Publication number
CN116459454A
CN116459454A CN202310506161.7A CN202310506161A CN116459454A CN 116459454 A CN116459454 A CN 116459454A CN 202310506161 A CN202310506161 A CN 202310506161A CN 116459454 A CN116459454 A CN 116459454A
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China
Prior art keywords
light
radiation illuminance
different
illuminance
skin
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Pending
Application number
CN202310506161.7A
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Chinese (zh)
Inventor
于倩倩
魏三刚
刘然
马永强
李栋栋
谢静
许显斌
王国庆
胡永岚
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Beijing Yeolight Technology Co ltd
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Beijing Yeolight Technology Co ltd
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Priority to CN202310506161.7A priority Critical patent/CN116459454A/en
Publication of CN116459454A publication Critical patent/CN116459454A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0613—Apparatus adapted for a specific treatment
    • A61N5/0616—Skin treatment other than tanning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0613—Apparatus adapted for a specific treatment
    • A61N5/0624—Apparatus adapted for a specific treatment for eliminating microbes, germs, bacteria on or in the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/065—Light sources therefor
    • A61N2005/0651—Diodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
    • A61N2005/0659—Radiation therapy using light characterised by the wavelength of light used infrared
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
    • A61N2005/0662—Visible light
    • A61N2005/0663—Coloured light
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

The embodiment of the invention discloses a skin care device, which comprises: a light emitting module; the light emitting module is used for periodically emitting light waves, m light waves are sequentially emitted in each light wave emitting period, and the radiation illuminance of at least one light wave in the m light waves is different from that of other light waves, wherein m is an integer greater than or equal to 2. According to the embodiment of the invention, through the matching of the light beams with different radiation illuminance, more heat can be received at all positions in the skin, and the skin surface can be prevented from being damaged by the light beams with strong radiation illuminance while a better nursing effect is achieved.

Description

Skin care device
Technical Field
The invention relates to the technical field of skin light care, in particular to a skin care device.
Background
Along with the improvement of living standard, people pay more and more attention to skin care, and the skin care is carried out by the non-contact photo-thermal effect widely applied at present, and the light of different wavelengths can penetrate the epidermis skin layer to reach dermis layer, fascia layer and muscle layer. For example, the use of light can remove melanin by cell activation, and can stimulate collagen regeneration, increase blood circulation, improve skin color, promote hair regeneration, and relieve skin problems such as skin redness, swelling and inflammation, such as burn, sunburn, etc. In addition, the light has a calm effect on skin, is favorable for relieving pigmentation spots and brightening skin color, has strong antibacterial property, can kill acne pathogenic bacteria, is used for preventing and treating light and moderate acne, is favorable for purifying skin, stabilizing oil glands and relieving inflammation, and plays roles in relieving, calm, repairing and accelerating wound healing in cooperation with other skin care means.
However, when caring skin by photothermal action, damage is easily caused to the top layer of the skin, causing pain and epidermal damage.
Disclosure of Invention
The invention provides a skin care device, which is used for avoiding skin damage during skin care.
According to an aspect of the present invention, there is provided a skin care device comprising:
a light emitting module;
the light emitting module is used for periodically emitting light waves, m light waves are sequentially emitted in each light wave emitting period, and the radiation illuminance of at least one light wave in the m light waves is different from that of other light waves, wherein m is an integer greater than or equal to 2.
Optionally, the ratio of the radiation illuminance of the light beam with the maximum radiation illuminance to the radiation illuminance of the light beam with the minimum radiation illuminance in the same light wave emission period is greater than 1 and less than or equal to 4.
Optionally, in the same light wave emission period, the ratio of the radiation illuminance of the light beam with the maximum radiation illuminance to the radiation illuminance of the light beam with the minimum radiation illuminance is greater than or equal to 1 and less than or equal to 2.
Optionally, the m light waves include light beams with n different radiation illuminance; the beams of n different irradiance satisfy the following DSR conditions:
PWM 1 /F 1 ＝C1*PWM 2 /F 2 ＝……＝Cn*PWM n /F n ；
wherein PWM 1 Duty cycle of the beam of light at the first irradiance, PWM 2 Duty cycle of the beam of light at the second irradiance, PWM n Duty cycle of beam of nth irradiance, F 1 Pulse frequency of beam of first irradiance, F 2 Pulse frequency of beam of second irradiance, F n The pulse frequency of the light beam for the nth radiation illuminance, C1 and Cn, is a constant, and n is an integer greater than or equal to 2 and less than or equal to m.
Optionally, the light emitting module includes at least two light sources with different light emitting colors;
in the same emission period, the m light waves are light waves with the same color or the m light waves comprise light beams with at least two different colors;
each light wave includes light waves of one or more colors.
Optionally, the skin care device further comprises:
the control module is used for acquiring a nursing mode selected by a user and controlling the emission mode of the light-emitting module according to the nursing mode;
the total number of light beams in the same light wave emission period, the emission sequence of light beams with different radiation illuminance in the same light wave emission period, the number of light beams with different radiation illuminance in the same light wave emission period, the radiation illuminance of each light beam and at least one of the colors of each light beam are different.
Optionally, each of the beams has an energy density of 1000-5000mJ/m 2 。
Optionally, the peak wavelength of the light wave emitted by the light emitting module is one or more of 465nm, 595nm, 640nm and 940 nm.
Optionally, when the depth of penetration of the light wave into the skin changes by 100um, the temperature change value of the heating temperature of the light wave is less than or equal to 10 ℃.
Optionally, the light emitting module includes a plurality of LED light sources;
wherein the number of the LED light sources is 300-3000;
the EMF radiation frequency of the lighting module is greater than or equal to 60000 times/s.
The light emitting module of the embodiment of the invention periodically emits light beams, at least one light wave in m light waves emitted by each light wave emitting period is different from the radiation illumination of other light waves, namely, each light wave emitting period emits 2 or more light waves with different radiation illumination to care skin, in the light waves with different radiation illumination, the light waves with stronger radiation illumination generate more heat when irradiated to the skin, the light waves with weaker radiation illumination generate less heat when irradiated to the skin, and through the cooperation of the light beams with different radiation illumination, more heat can be received everywhere inside the skin, so that the skin surface is protected from being damaged by the light beams with strong radiation illumination while the better care effect is achieved.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a graph of absorption coefficient versus wavelength of light according to an embodiment of the present invention;
fig. 2 is a schematic view of a skin care device according to an embodiment of the present invention;
FIG. 3 shows heating temperatures corresponding to different penetration depths of different light rays in the related art according to the embodiment of the present invention;
the embodiment of fig. 4 provides a skin care device with heating temperatures corresponding to different band penetration depths.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It has been found that the photothermal effect of light on skin has a number of effects: 1) When light acts on skin, subcutaneous cells can crack hemoglobin by absorbing strong light to generate high heat, so that the blood vessel is cracked and closed, and the effect of improving red blood filaments is achieved; 2) The photothermal effect can chemically change the internal molecular structures of collagen and elastic fiber of the dermis layer, restore elasticity, enhance vascular function, improve circulation, shrink pores and eliminate superficial wrinkles; 3) When light acts on the skin, the darker the cells, the more light is absorbed, and the more heat is generated, so that the cells are easily decomposed to have the whitening effect; 4) The light can react with the metabolite of the subcutaneous bacteria to generate tissue oxygen, so as to attack and kill the bacteria, improve the skin environment and achieve the beauty effects of removing acne and eliminating acne.
An embodiment of the present invention provides a skin care device including:
a light emitting module;
the light emitting module is used for periodically emitting light waves, m light waves are sequentially emitted in each light wave emitting period, and the radiation illuminance of at least one light wave in the m light waves is different from that of other light waves, wherein m is an integer greater than or equal to 2.
The light emitting module may include an LED light source, or may include other light sources, which is not limited in this embodiment. m may be 2, 3, 4, etc., and the m light waves may include two light beams with different radiation illuminance, or may include three or more light beams with different radiation illuminance. For example, each light wave emission period of the light emitting module sequentially emits 2 light waves, so that the radiation illuminance of two light waves is different, each light wave emission period of the light emitting module sequentially emits 3 light waves, and the radiation illuminance of one light wave is different from the radiation illuminance of the other two light waves, and the radiation illuminance of three light waves is different.
In addition, the emission sequence of the light beams with different radiation illuminance in the m light waves can be set according to the requirement, the irradiation intensity of the light beams emitted by the light emitting module in one emission period can be sequentially reduced, the irradiation intensity of the light beams can be sequentially increased and then decreased, the irradiation intensity of the light beams with high radiation illuminance and the irradiation intensity of the light beams with low radiation illuminance can be alternately emitted. For example, each light wave emission period of the light emitting module sequentially emits 2 light waves with different radiation illuminance, so that in one light wave emission period, a light beam with strong radiation illuminance can be emitted first, and then a light beam with weak radiation illuminance can be emitted, or a light beam with weak radiation illuminance can be emitted first, and then a light beam with strong radiation illuminance can be emitted; in an exemplary embodiment, each light wave emission period of the light emitting module sequentially emits 3 light waves, where the 3 light waves include 1 light beam of a first radiation illuminance and 2 light beams of a second radiation illuminance, and in one light wave emission period, the light beam of the first radiation illuminance may be emitted first, then the light beam of the second radiation illuminance may be emitted sequentially, or the light beam of the second radiation illuminance may be emitted first, then the light beam of the first radiation illuminance may be emitted, and then the light beam of the second radiation illuminance may be emitted.
In the prior art, the skin is usually irradiated by light beams with the same irradiation illuminance, and in order to enable more light and heat to be received everywhere in the skin, the skin is usually irradiated by light with higher irradiation illuminance, however, the skin surface layer is easily damaged by the light with higher irradiation illuminance.
The light emitting module of this embodiment periodically emits light beams, and at least one light wave among m light waves emitted by each light wave emitting period is different from the radiation illuminance of other light waves, namely, each light wave emitting period emits 2 or more light waves with different radiation illuminance to care skin, among the light waves with different radiation illuminance, the light waves with stronger radiation illuminance can generate more heat when irradiating the skin, the light waves with weaker radiation illuminance can generate less heat when irradiating the skin, and through the cooperation of the light beams with different radiation illuminance, more heat can be received everywhere inside the guaranteed skin, so that the skin surface layer can be prevented from being damaged by the light beams with strong radiation illuminance while better care effect is achieved.
Optionally, the ratio of the radiation illuminance of the light beam with the maximum radiation illuminance to the radiation illuminance of the light beam with the minimum radiation illuminance in the same emission period is in a range of greater than 1 and less than or equal to 4.
Specifically, when the difference between the radiation illuminance of the light beam with the maximum radiation illuminance and the radiation illuminance of the light beam with the minimum radiation illuminance is too large, the photothermal effect on the skin generated when the light beam with the minimum radiation illuminance irradiates the skin is smaller, the generated heat is less, the better nursing effect cannot be achieved, the ratio range of the radiation illuminance of the light beam with the maximum radiation illuminance to the radiation illuminance of the light beam with the minimum radiation illuminance in the same emission period is more than 1 and less than or equal to 4, the light beam with the minimum radiation illuminance plays a stronger photothermal effect on the skin, the light beam with the minimum radiation illuminance and the light beam with the maximum radiation illuminance can be better matched for skin nursing, and the driving difficulty of the light emitting module is reduced.
Optionally, in the same light wave emission period, the ratio range of the radiation illuminance of the light beam with the maximum radiation illuminance to the radiation illuminance of the light beam with the minimum radiation illuminance is greater than or equal to 1 and less than or equal to 2 in the light beam with the same color.
Specifically, the luminous efficiency of the light source with the same color is close, when the radiation illuminance of the light beam with the maximum radiation illuminance and the radiation illuminance of the light beam with the minimum radiation illuminance are different greatly, the driving difficulty of the light source is increased, and in the same light wave emission period, the ratio range of the radiation illuminance of the light beam with the maximum radiation illuminance to the radiation illuminance of the light beam with the minimum radiation illuminance in the light beam with the same color is more than or equal to 1 and less than or equal to 2, so that the driving difficulty of the light source is reduced.
Optionally, the m light waves include n light beams with different radiation illuminance; the beams of n different irradiance satisfy the following DSR (Dose-effect Relationship Standard) conditions:
PWM 1 /F 1 ＝C1*PWM 2 /F 2 ＝……＝Cn*PWM n /F n ；
wherein PWM 1 Duty cycle of the beam of light at the first irradiance, PWM 2 Duty cycle of the beam of light at the second irradiance, PWM n Duty cycle of beam of nth irradiance, F 1 Pulse frequency of beam of first irradiance, F 2 Pulse frequency of beam of second irradiance, F n The pulse frequency of the light beam for the nth radiation illuminance, C1 and Cn, is a constant, and n is an integer greater than or equal to 2 and less than or equal to m.
Wherein the duty ratio of the light beam in this embodiment is that the light source emitting the light beam periodically emits the light beam, the duration of emitting one light beam in one periodA ratio to a period duration, wherein a period includes a total duration of emitting the light beam and not emitting the light beam. Exemplary PWM 1 The light source for emitting the light beam of the first irradiation illuminance emits a ratio of a duration of one light beam of the first irradiation illuminance to a duration of one period when the light beam of the first irradiation illuminance is periodically emitted. PWM (pulse Width modulation) 2 The light source for emitting the light beam of the second irradiation illuminance emits a ratio of a duration of one light beam of the second irradiation illuminance to a duration of one period when the light beam of the second irradiation illuminance is periodically emitted. PWM (pulse Width modulation) n The light source for emitting the light beam of the nth irradiation illuminance emits a ratio of a duration of the light beam of the nth irradiation illuminance to a duration of one period when periodically emitting the light beam of the nth irradiation illuminance. The pulse frequency is the number of times the beam is emitted per unit time. For example F n The number of light beams of the nth irradiation illuminance per unit time is emitted as a light source for emitting light beams of the nth irradiation illuminance.
By way of example, if the duty cycle of the light beam of the first irradiation illuminance is 50% and the pulse frequency is 400Hz, the light source for emitting the first irradiation illuminance emits 400 light beams of the first irradiation illuminance within 1s, the emission period is 2.5ms, and the emission period of one light beam of the first irradiation illuminance is 1.25ms.
Specifically, the duty ratio affects the irradiation duration of the light beam, and the pulse frequency affects the number of times of irradiation of the light beam. For the light beam with stronger radiation illuminance, the pulse frequency is smaller, when the duty ratio is larger, the irradiation time of one light beam is too long, the skin surface layer is easy to overheat, and for the light beam with stronger radiation illuminance, the larger pulse frequency and the smaller duty ratio can be set, so that the light beam with stronger radiation illuminance irradiates the skin for a plurality of times in a short time. For the light beam with weak radiation illuminance, the pulse frequency is larger, and the duty ratio is smaller, so that the irradiation time of one light beam is too short to have a good photo-thermal effect on the skin, and therefore, the light beam with weak radiation illuminance can be provided with smaller pulse frequency and larger duty ratio.
The present embodiment is realized by setting PWM 1 /F 1 ＝C1*PWM 2 /F 2 ＝……＝Cn*PWM n /F n The irradiation time and the irradiation times of the light beams with different irradiation degrees are balanced, and the light beams with different irradiation degrees are matched to play a good photo-thermal role on the skin on the premise of avoiding damage to the surface layer of the skin, so that a good nursing effect on the skin is achieved.
Note that, C1, cn, and the like may be set according to skin care requirements, and the embodiment is not particularly limited. For example, different C1 and Cn values may be set, or the same C1 and Cn values may be set, under different care requirements such as whitening, acne removal, moisturizing, repair, anti-aging, skin rejuvenation, and oil control.
Optionally, the light emitting module comprises at least two light sources of different light emitting colors.
Fig. 1 is a graph of the absorption coefficient of light versus the Wavelength of light according to an embodiment of the present invention, referring to fig. 1, the horizontal axis Wavelength in fig. 1 represents the Wavelength, and the vertical axis Absorption coefficient represents the coefficient, referring to fig. 1, it can be seen that the absorption coefficients of different substances for light with different wavelengths are different, that is, the care effects of light with different colors on skin are different, for example: blue light with the wavelength of 465nm is favorable for absorption and generation of bilirubin, so that inflammation can be effectively eliminated, infrared light with the wavelength of 940nm can effectively decompose fat and remove moisture, promote cell regeneration, enhance skin elasticity and resist skin relaxation and aging. The red light of 640nm is favorable for absorption of hemoglobin, and can rupture the hemoglobin, so that the vascular rupture and closure are initiated, and the effect of improving the red blood filaments is achieved. Yellow light at 595nm can act on metabolites of propionibacterium acnes, generating singlet oxygen (singet oxygen), attacking and killing propionibacterium acnes; and the light of the wave band is milder, so that the skin barrier can be effectively repaired, and redness, burning and pain and itching in the skin care process can be relieved. Furthermore, the light energy in 465-940nm wave band acts on melanin, breaks up the pigment and then discharges the pigment out of the body, thereby achieving the effects of removing black, lightening spots and whitening.
Specifically, light sources of different colors may be selected as desired. By way of example, the light emitting module may include red, blue, yellow, and infrared light sources, which are primarily bilirubin, melanin, fat, oxyhemoglobin, deoxyhemoglobin, oxymyoglobin, and absorption bands of deoxymyoglobin. Through setting up the light emitting module and including at least two kinds of light sources, can carry out multiple different nursing to skin, promote user experience.
Optionally, in the same emission period, the m light waves are light waves of the same color or the m light waves comprise light beams of at least two different colors;
each light wave includes light waves of one or more colors.
Specifically, the peak wavelength of the light wave emitted by the light emitting module is one or more of 465nm, 595nm, 640nm and 940 nm.
Specifically, the color of the light wave can be set according to the needs, for example, when nursing is performed for a certain skin problem, the light waves of the same color can be set for m light waves, and when nursing is performed for two or more different skin problems, the light waves of the m light waves can be selected to include light beams of at least two different colors. For example, when m is 3, it may be set that one light wave of a first color and two light waves of a second color are included in the m light waves.
In addition, the color of each light wave may be set according to specific nursing requirements, for example, each light wave may be set to include only one color light wave, or each light wave may be set to include two or more different colors light waves.
In the embodiment, in the same emission period, the m light waves are light waves with the same color or the m light waves comprise light beams with at least two different colors; each light wave beam comprises light waves with one or more colors, and can meet different skin care requirements.
In addition, the luminous efficiency of the red light source is greater than the luminous efficiency of the blue light source, the luminous efficiency of the yellow light source is greater than the luminous efficiency of the infrared light source, and the illuminance=ηP/(40 pi f L of the light radiation is greater than the luminous efficiency of the infrared light source 2 ) Wherein eta is the luminous efficiency of the light source, P is the output power of the light source, f is the frequency of the light wave, L is the irradiation distance, therefore, at the same output power and irradiation distance of the light source, different colors are obtainedThe different illuminance of chromatic light can select the colors of light beams with different illuminance in the same light wave emission period according to skin care needs, so that better skin care is realized.
Fig. 2 is a schematic view of a skin care device according to an embodiment of the present invention, and referring to fig. 2, the skin care device further includes:
the control module 20, the control module 20 is used for obtaining the nursing mode selected by the user, and controlling the emission mode of the light emitting module 10 according to the nursing mode;
the total number of light beams in the same light wave emission period, the emission sequence of light beams with different radiation illuminance in the same light wave emission period, the number of light beams with different radiation illuminance in the same light wave emission period, the radiation illuminance of each light beam and at least one of the colors of each light beam are different.
The total number of light beams in the same light wave emission period is m, and the number of light beams in different radiation illumination in the same light wave emission period is n. The care mode may include a whitening mode, an acne removing mode, a moisturizing mode, a repair mode, an anti-aging mode, a skin rejuvenation mode, an oil control mode, and the like. A care mode knob or key, etc. may be provided on the care device, and the control module 20 determines a care mode selected by the user according to the key triggered by the user or the position of the user's rotation knob, and adjusts the emission mode of the light emitting module 10 according to the care mode. Each nursing mode may be set to correspond to one transmitting mode, different nursing modes correspond to different transmitting modules, or two or several nursing modes may be set to correspond to one same nursing mode, which is not limited in particular.
In this embodiment, by setting the control module 20, the control module 20 obtains the nursing mode selected by the user, and controls the emission mode of the light emitting module 10 according to the nursing mode, so as to meet different nursing requirements.
Optionally, the energy density of each beam is less than or equal to 1000-5000mJ/m 2 。
In particular, the higher the irradiance of the beam, the more photothermal effect it has on the skin, the more heat is generatedIn many cases, the energy density of each beam is set to be less than or equal to 1000-5000mJ/m 2 The skin-care product has strong photo-thermal effect on skin, generates more heat, and can avoid damaging the surface layer of the skin due to overhigh radiation illuminance.
Alternatively, the light wave emission period is 1-5ms.
Specifically, in the same emission mode, the light beams emitted by each light wave emission period are the same. The light wave sending period is set to be 1-5ms, so that different nursing requirements can be met.
Optionally, when the depth of penetration of the light wave into the skin changes by 100um, the temperature change value of the heating temperature of the light wave is less than or equal to 10 ℃.
Fig. 3 is a schematic diagram showing heating temperatures corresponding to different penetration depths of different light rays in the related art according to the embodiment of the present invention, and fig. 4 is a schematic diagram showing heating temperatures corresponding to different band penetration depths in the skin care device according to the embodiment of the present invention. In fig. 3 and 4, the horizontal axis Wavelength represents Wavelength and the vertical axis skin depth represents skin penetration.
Referring to fig. 3, when the depth of light wave transmission is changed by 100um, the temperature change value of the heating temperature of the light wave is large, and when the temperature of the deep skin reaches 30-40 degrees, the temperature of the surface layer of the skin reaches 70-90 degrees, which is easy to damage the surface layer skin.
Referring to fig. 4, in the embodiment of the present invention, by matching light beams with different radiation illuminance, and adjusting the duty cycle and the frequency of the light beams with different radiation illuminance, when the depth of penetration of the light wave into the skin changes by 100um, the temperature change value of the heating temperature of the light wave is less than or equal to 10 ℃. When the temperature in the deep skin reaches 46-48 degrees, the temperature of the surface layer of the skin is kept at 50-52 degrees, so that the damage of the surface layer of the skin is avoided.
Optionally, the light emitting module 10 includes a plurality of LED light sources;
wherein the number of the LED light sources is 300-3000;
the EMF (Electric magnetic field) radiation frequency of the light emitting module 10 is 60000 times/s or more.
In particular, the higher the EMF frequency, the higher the frequency at which the entire lighting module 10 emits a light beam, the less damage to the skin and the better the care. The EMF frequency is set to be more than or equal to 60000 times/s, namely the light emitting module can emit an over-frequency wave beam, so that skin damage can be avoided, and skin care is better carried out.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (10)

1. A skin care device, comprising:
a light emitting module;
the light emitting module is used for periodically emitting light waves, m light waves are sequentially emitted in each light wave emitting period, and the radiation illuminance of at least one light wave in the m light waves is different from that of other light waves, wherein m is an integer greater than or equal to 2.
2. The skin care device of claim 1, wherein:
the ratio of the radiation illuminance of the light beam with the maximum radiation illuminance to the radiation illuminance of the light beam with the minimum radiation illuminance in the same light wave emission period is more than 1 and less than or equal to 4.
3. The skin care device of claim 2, wherein:
and in the same light wave emission period, the ratio of the radiation illuminance of the light beam with the maximum radiation illuminance to the radiation illuminance of the light beam with the minimum radiation illuminance in the light beam with the same color is more than or equal to 1 and less than or equal to 2.
4. The skin care device of claim 1, wherein:
the m light waves comprise n light beams with different radiation illumination; the beams of n different irradiance satisfy the following DSR conditions:
PWM 1 /F 1 ＝C1*PWM 2 /F 2 ＝……＝Cn*PWM n /F n ；
wherein PWM 1 Duty cycle of the beam of light at the first irradiance, PWM 2 Duty cycle of the beam of light at the second irradiance, PWM n Duty cycle of beam of nth irradiance, F 1 Pulse frequency of beam of first irradiance, F 2 Pulse frequency of beam of second irradiance, F n The pulse frequency of the light beam for the nth radiation illuminance, C1 and Cn, is a constant, and n is an integer greater than or equal to 2 and less than or equal to m.
5. The skin care device of claim 1, wherein:
the light-emitting module comprises at least two light sources with different light-emitting colors;
in the same emission period, the m light waves are light waves with the same color or the m light waves comprise light beams with at least two different colors;
each light wave includes light waves of one or more colors.
6. The skin care device of claim 1, further comprising:
the control module is used for acquiring a nursing mode selected by a user and controlling the emission mode of the light-emitting module according to the nursing mode;
the total number of light beams in the same light wave emission period, the emission sequence of light beams with different radiation illuminance in the same light wave emission period, the number of light beams with different radiation illuminance in the same light wave emission period, the radiation illuminance of each light beam and at least one of the colors of each light beam are different.
7. The skin care device of claim 1, wherein:
the energy density of each of the beams is less than or equal to 1000-5000mJ/m 2 。
8. The skin care device of claim 1, wherein:
the peak wavelength of the light wave emitted by the light-emitting module is one or more of 465nm, 595nm, 640nm and 940 nm.
9. The skin care device of claim 1, wherein:
when the depth of the light wave penetrating through the skin changes by 100um, the temperature change value of the heating temperature of the light wave is less than or equal to 10 ℃.
10. The skin care device of claim 1, wherein:
the light emitting module comprises a plurality of LED light sources;
wherein the number of the LED light sources is 300-3000;
the EMF radiation frequency of the lighting module is greater than or equal to 60000 times/s.
CN202310506161.7A 2023-05-06 2023-05-06 Skin care device Pending CN116459454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310506161.7A CN116459454A (en) 2023-05-06 2023-05-06 Skin care device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310506161.7A CN116459454A (en) 2023-05-06 2023-05-06 Skin care device

Publications (1)

Publication Number Publication Date
CN116459454A true CN116459454A (en) 2023-07-21

Family

ID=87184279

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310506161.7A Pending CN116459454A (en) 2023-05-06 2023-05-06 Skin care device

Country Status (1)

Country Link
CN (1) CN116459454A (en)

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