Light-emitting unit and light-irradiating beauty device

Abstract

To provide a light emitting unit and a light irradiation type beauty device that can improve a beauty effect on skin.SOLUTION: A light emitting unit 20 comprises a first light source part 22 having a predetermined wavelength spectrum, and a second light source part 23 having a wavelength spectrum different from that of the first light source part 22. A second light source 231 of the second light source part 23 is arranged on a surface in which a normal line is set in a main optical axis direction of the first light source part 22. A blowing passage 24 extending in an intersecting direction intersecting with the main optical axis direction of the first light source part 22 and capable of passing wind so that it goes from one side to the other side in the intersecting direction is formed.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present disclosure relates to a light-emitting unit and a light-irradiating cosmetic device. [Background technology]

[0002] A method of irradiating light onto the surface of the practitioner's skin is known as a means of achieving beauty effects such as beautiful skin and hair growth. A light-irradiating beauty device is known as a device for achieving beauty effects by irradiating light onto the surface of the practitioner's skin.

[0003] This light-irradiating cosmetic device includes a light-emitting unit having a light source, which is generally a light source having a narrowband wavelength spectrum such as an LED (Light Emitting Diode) or a laser, or a light source having a broadband wavelength spectrum such as a flash lamp.

[0004] However, it is known that the cosmetic effects obtained when light emitted from a light source is irradiated onto the skin vary depending on the wavelength spectrum, and therefore, in recent years, there has been a need to simultaneously irradiate the skin with light emitted from light sources having different wavelength spectra in order to obtain various cosmetic effects.

[0005] The light mentioned above refers to light (electromagnetic waves) in a broad sense, including not only visible light but also ultraviolet and infrared wavelengths.

[0006] As a light-irradiating cosmetic device that can provide various cosmetic effects, a light-irradiating cosmetic device such as that shown in Patent Document 1 below has been proposed. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent No. 6296743 Summary of the Invention [Problem to be solved by the invention]

[0008] In the above Patent Document 1, the light-irradiating cosmetic device includes a first attachment with a flash lamp. In addition, the device includes a second attachment with LEDs arranged around an outlet for extracting light from the flash lamp, which is detachably attached to the first attachment. By using the light-irradiating cosmetic device with the second attachment attached to the first attachment, it is possible to irradiate multiple wavelength spectra on the same plane. In addition, the light-irradiating cosmetic device includes a cooling fan, which is driven to cool the flash lamp provided on the first attachment.

[0009] However, in the configuration disclosed in the above Patent Document 1, the LED is placed in a position where it is difficult to cool it with the cooling fan in the second attachment. Therefore, the LED placed in the second attachment cannot be sufficiently exposed to air, and only a small amount of energy can be extracted that does not require cooling by forced air cooling. Therefore, only light with a small amount of energy can be irradiated onto the skin, which makes it difficult to enhance the beauty effect on the skin.

[0010] In view of the above, an object of the present disclosure is to provide a light-emitting unit and a light-irradiating cosmetic device that can further improve the cosmetic effect on the skin. [Means for solving the problem]

[0011] A light-emitting unit according to one aspect of the present disclosure includes a first light source section having a predetermined wavelength spectrum and a second light source section having a wavelength spectrum different from that of the first light source section, a second light source of the second light source section is disposed on a plane having a normal in a direction of a main optical axis of the first light source section, and an air passage is formed extending in a cross direction intersecting with the direction of the main optical axis of the first light source section and capable of passing air from one side to the other side in the cross direction.

[0012] In addition, a light-irradiating cosmetic device according to one aspect of the present disclosure is a device comprising the light-emitting unit, a housing having a handle portion and in which the light-emitting unit is housed, and a wind generating portion held in the housing and generating wind that passes through the air passage. Effect of the Invention

[0013] According to the present disclosure, it is possible to obtain a light-emitting unit and a light-irradiating cosmetic device that can further improve the cosmetic effect on the skin. [Brief description of the drawings]

[0014] [Figure 1] 1 is a perspective view showing a light-irradiating cosmetic device according to an embodiment. [Diagram 2] 1 is a front view showing a light-irradiating cosmetic device according to an embodiment. [Diagram 3] 3 is a cross-sectional view taken along line AA in FIG. 2. [Figure 4] FIG. 2 is a perspective view showing a light-emitting unit and a wind generating section according to the embodiment. [Diagram 5] FIG. 2 is a plan view showing a light-emitting unit and a wind generating section according to the embodiment. [Figure 6] 2 is a front view showing a light-emitting unit and a wind generating section according to the embodiment; FIG. [Figure 7] 6 is a cross-sectional view of FIG. 5 taken along line B-B. [Figure 8] 5C is a cross-sectional view taken along line CC of FIG. [Figure 9] FIG. 6 is a cross-sectional view taken along the line DD in FIG. 5 . [Figure 10] 7 is a cross-sectional view of FIG. 6 taken along line E-E. [Figure 11] 1 is a block diagram showing a light-irradiating cosmetic device according to an embodiment. [Figure 12] 13 is a plan view showing a modified example of the arrangement of the light emitting unit and the wind generating section. FIG. [Figure 13] 13 is a perspective view showing a modified example of the arrangement of the light emitting unit and the wind generating section. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, the embodiments will be described in detail with reference to the drawings. However, more detailed description than necessary may be omitted. For example, detailed description of already well-known matters or duplicate description of substantially the same configuration may be omitted.

[0016] It should be noted that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0017] In the following description, electromagnetic waves will be used to refer to light in a broad sense, including not only visible light but also ultraviolet and infrared wavelengths.

[0018] In the following embodiments, the vertical direction of the light-irradiating cosmetic device with the light outlet facing upward is defined as the Z direction. The longitudinal direction of the light-irradiating cosmetic device as viewed along the Z direction is defined as the Y direction. The short side direction of the light-irradiating cosmetic device as viewed along the Z direction (the direction perpendicular to the Z and Y directions) is defined as the X direction.

[0019] (Embodiment) [An example of the configuration of a light-irradiating beauty device] First, an example of the configuration of a light-irradiating cosmetic device will be described with reference to FIGS. 1 to 3 and 11. FIG.

[0020] As shown in FIG. 1, a light-irradiating cosmetic device 1 according to this embodiment includes a main body 10 that is elongated in the Y direction.

[0021] In this embodiment, the main body 10 includes a housing 11 made of synthetic resin. This housing 11 constitutes the outer shell of the main body 10, and can be formed, for example, by joining a plurality of divided bodies. A cavity is formed inside the housing 11, and various electric components are accommodated in this cavity.

[0022] In this embodiment, as shown in Fig. 11, a flash lamp driving unit 13 that drives a flash lamp (first light source) 221 described later is accommodated in a cavity formed inside the housing 11. Also accommodated are an LED driving unit 14 that drives an LED (second light source) 231 described later, and a fan driving unit 15 that drives a fan (wind generating unit: blower) 16 described later. Furthermore, a power supply unit 12 that supplies power to the flash lamp driving unit 13, the LED driving unit 14, and the fan driving unit 15, etc. are accommodated.

[0023] The housing 11 is substantially cylindrical and is formed to a size that allows the user to hold it with one hand. One end side of the housing 11 in the longitudinal direction (Y direction) is a gripping part 111 that can be held by hand, and a functional part 112 that can irradiate electromagnetic waves (light) to the skin of the practitioner is provided adjacent to the other end side of the gripping part 111 in the longitudinal direction (Y direction). In this embodiment, the gripping part 111 and the functional part 112 are integrally formed.

[0024] Further, a protruding wall 1121 that protrudes upward (in the Z direction) is formed on the side of the functional part 112, and a substantially rectangular opening 1121a that opens upward (in the Z direction) is formed at the upper end of the protruding wall 1121.

[0025] A light-emitting unit 20 for irradiating the skin of the practitioner with electromagnetic waves (light) is housed inside this functional section 112. Specifically, the light-emitting unit 20 is housed and held in a state in which it is located lower in the up-down direction (Z direction) than the protruding wall 1121 of the housing 11. At this time, the light-emitting unit 20 is housed and held in the housing 11 in a state in which the direction of the main optical axis of the light irradiated from the light-emitting unit 20 is approximately aligned upward (Z direction).

[0026] The light-irradiating cosmetic device 1, in which such a light-emitting unit 20 is housed inside the housing 11, can be used to enhance the cosmetic effect of the practitioner's skin, for example, by irradiating the skin of the practitioner's face, hands, and feet with electromagnetic waves (light) of a predetermined wavelength spectrum. In this embodiment, the opening 1121a of the protruding wall 1121 serves as the exit port 113 that emits the electromagnetic waves (light) of the light-emitting unit 20 toward the skin. Thus, in this embodiment, the exit port 113 is formed in the housing 11 so as to open in a direction (Z direction) intersecting the longitudinal direction (Y direction) of the grip part 111.

[0027] Furthermore, in this embodiment, the protruding wall 1121 has a tapered shape tapering upward (in the Z direction), and a space portion having a substantially truncated quadrangular pyramid shape is formed inside the protruding wall 1121. A tapered collector mirror is disposed in the space inside the protruding wall 1121, and this collector mirror functions as an optical system for guiding at least a portion of the electromagnetic wave (light) of the light-emitting unit 20 to the emission port 113. In this embodiment, the integrator optical system 17 serving as a collector mirror is disposed in the space inside the protruding wall 1121.

[0028] Although not shown, the housing 11 is provided with an operation switch for operating the light-irradiating cosmetic device 1 (for turning the power on and off). This operation switch may be a push-type switch, a slide-type switch, or another type of switch. The housing 11 may also be provided with a selection switch that allows the selection of driving either the flash lamp driving unit 13 or the LED driving unit 14, or both. This selection switch may also be a push-type switch, a slide-type switch, or another type of switch.

[0029] A fan (air blowing section) 16 is accommodated and held inside the housing 11 as an airflow generating section that generates airflow, and is capable of blowing air toward the light-emitting unit 20. As the fan (air blowing section) 16, a conventionally known one can be used.

[0030] In the present embodiment, the fan 16 is disposed closer to the grip portion 111 than the light-emitting unit 20, so that air is blown along the Y direction. Instead of blowing air from the fan 16 towards the light-emitting unit 20, the fan 16 may suck in air around the light-emitting unit 20 to generate air in the Y direction at the light-emitting unit 20.

[0031] [An example of the configuration of a light-emitting unit] Next, an example of the configuration of the light emitting unit will be described with reference to FIGS.

[0032] The light-emitting unit 20 according to this embodiment includes a flash lamp unit (first light source unit) 22, an LED unit (second light source unit) 23, and a case 21 that holds the flash lamp unit 22 and the LED unit 23. The wavelength spectrum of the flash lamp unit 22 is different from the wavelength spectrum of the LED unit 23. In this manner, in this embodiment, the light-emitting unit 20 includes both the flash lamp unit 22 and the LED unit (LED light source unit) 23.

[0033] In this embodiment, the flash lamp unit 22 uses a flash lamp 221 as a first light source, and the LED unit 23 uses an LED 231 as a second light source. In this way, the electromagnetic waves emitted from the flash lamp unit 22 have a predetermined wavelength spectrum. And, the electromagnetic waves emitted from the LED unit 23 have a predetermined wavelength spectrum different from the electromagnetic waves emitted from the flash lamp unit 22.

[0034] In addition, when the flash lamp 221 is used as the first light source for producing a cosmetic effect as in this embodiment, broadband light of 400 nm to 1200 nm is emitted, so that a wide range of cosmetic effects can be provided to the practitioner's skin, and a hair removal effect can also be provided.

[0035] In this embodiment, a substantially cylindrical xenon flash lamp (cylindrical xenon flash lamp) 221 is used.

[0036] In this way, when a cylindrical xenon flash lamp 221 is used, electromagnetic waves (light) are emitted in the radial direction of the cylindrical tube, so that the electromagnetic waves (light) cannot be efficiently guided to the emission port 113, and a relatively large amount of electromagnetic waves (light) is wasted.

[0037] Therefore, in this embodiment, the flash lamp unit 22 is provided with a reflector 222 for guiding, to the emission port 113, at least a portion of the electromagnetic waves emitted from the flash lamp 221 and traveling in a direction away from the emission port 113.

[0038] The reflector 222 has a shape in which a substantially rectangular plate-like member is bent into a U-shape opening upward in a side view, and the inner surface of the reflector 222 is a mirror surface 222a. The cylindrical xenon flash lamp 221 is disposed on the lower side of the substantially U-shaped reflector 222 in a side view so as to face the mirror surface 222a. In this case, it is preferable that the cylindrical xenon flash lamp 221 is disposed at the focal point of a parabola that approximates the substantially U-shaped reflector 222 in a side view. In this way, the electromagnetic wave emitted from the cylindrical xenon flash lamp 221 can be more reliably reflected upward (to one side in the Z direction). In addition, partition walls 223 are provided at both ends of the longitudinal direction (Y direction) of the reflector 222 to eliminate light loss.

[0039] 9 and 10, in this embodiment, the cylindrical xenon flash lamp 221 and the reflector 222 are arranged on a base 225 with their axial direction (longitudinal direction) aligned along the Y direction. Specifically, the base 225 includes a first base 2251 and a second base 2252. The cylindrical xenon flash lamp 221 is held by the first base 2251, and the reflector 222 is held by the second base 2252.

[0040] Furthermore, in this embodiment, a flash lamp filter 224 is disposed above the cylindrical xenon flash lamp 221 and the reflector 222 that is substantially U-shaped in side view, and below the emission port 113 in the vertical direction Z (toward the first light source). Then, the electromagnetic waves emitted from the cylindrical xenon flash lamp 221 and the electromagnetic waves reflected by the mirror surface 222a of the reflector 222 pass through this flash lamp filter 224 before proceeding to the emission port 113. Thus, in this embodiment, the flash lamp filter 224 serves as the emission port of the flash lamp unit 22.

[0041] The flash lamp filter 224 can be formed of a material that easily transmits at least a part of the electromagnetic waves emitted from the flash lamp 221. It can also be formed by attaching a filter to the surface of a body such as glass or acrylic. In this case, a material that easily transmits all wavelengths can be selected, and when a material that easily transmits all wavelengths is selected, it becomes possible to extract higher energy. It is also possible to make the flash lamp filter 224 function as a wavelength cut filter that cuts off specific wavelengths. For example, by cutting off light of 400 nm to 550 nm that is likely to lead to pain when electromagnetic waves (light) are irradiated from the flash lamp 221 to the skin, it is possible to realize irradiation that is less painful. It is also possible to configure a bandpass filter and extract light of a specific wavelength, so that only light that can obtain the desired beauty effect is applied to the skin.

[0042] In this embodiment, the above-mentioned flash lamp unit 22 is held in the case 21. Specifically, the case 21 includes a base 211 and a cover 212, and the flash lamp unit 22 is placed on the base 211, and then the cover 212 is placed on top of the base 211, so that the flash lamp unit 22 is held in the case 21. At this time, a through hole is formed in the upper part of the cover 212, and the flash lamp filter 224 is exposed from the through hole of the cover 212 in a plan view with the flash lamp unit 22 held in the case 21.

[0043] In the present embodiment, one flash lamp 221 is used as a first light source for producing a cosmetic effect, but a plurality of LEDs 231 are used as a second light source for producing a cosmetic effect.

[0044] Surface-mounted LEDs are used as the plurality of LEDs 231, and the plurality of LEDs 231 are mounted on an LED mounting board 232. In this embodiment, the LED mounting board 232 is disposed so as to surround the periphery of the upper surface (flash lamp filter 224) of the flash lamp unit 22, and a connector section 232b is provided on the upper surface of the LED mounting board 232. The plurality of LEDs 231 are mounted on the LED mounting board 232 in a state of being spaced apart at approximately equal intervals all around. Therefore, in this embodiment, the plurality of LEDs 231 are disposed so as to surround the entire periphery of the upper surface (flash lamp filter 224) of the flash lamp unit 22. It is also possible to use LEDs other than surface-mounted LEDs as the LEDs 231.

[0045] Furthermore, by using LED 231 as the second light source for producing a cosmetic effect as in this embodiment, it is possible to select a wavelength according to the cosmetic effect desired, so that in addition to producing the desired cosmetic effect, it is also possible to produce a hair removal effect.

[0046] For example, by selecting the LED 231 in the following wavelength band, the following cosmetic effects can be obtained. Note that the wavelengths shown below indicate peak wavelengths, and part of the electromagnetic waves (light) emitted from the LED 231 may include wavelengths outside the range.

[0047] (1) 400nm~550nm: Improves fine lines, acne, redness, moisturizing, pore improvement, anti-inflammatory effect, sebum reduction, wound healing (2) 550nm~620nm: Improves fine lines, nasolabial folds, promotes cell turnover, and improves dark spots (3) 620nm~750nm: Wound healing, immune activation, wrinkle improvement, age spot improvement, cell turnover promotion, collagen production (4) 750nm~2000nm: Wound healing, immune activation, cell turnover promotion Furthermore, by using an LED with a wavelength spectrum of 550 nm to 1000 nm, it is possible to obtain the effect of improving skin brightness.

[0048] In addition, electromagnetic waves (light) of 500 nm to 1200 nm have high penetration into the skin and can reach deep into the skin, making it possible to increase the skin temperature deep inside. Therefore, if a light source having a wavelength band of 500 nm to 1200 nm is selected as the second light source, it becomes possible to apply electromagnetic waves (light) from the flash lamp 221 to the skin while increasing the temperature deep inside, thereby improving the hair removal effect.

[0049] In addition, it is not necessary for the LEDs 231 to have the same wavelength spectrum, and LEDs having different wavelength spectra may be used in combination. For example, by using a 450 nm LED and a 630 nm LED, it is possible to aim for acne improvement and collagen production effects.

[0050] Furthermore, the wavelength spectrum of the electromagnetic waves emitted from the LED 231 may have temperature dependency. For example, an LED that emits red light may be used as such an LED. In this way, by using an LED that has temperature dependency, it becomes possible to provide various effects to the skin according to temperature changes during use. In other words, it becomes possible to provide multiple effects to the skin with one LED.

[0051] In this embodiment, the plurality of LEDs 231 are thermally connected to a heat sink (heat dissipation section) 233 via an LED mounting substrate 232, and heat from the LEDs 231 is dissipated from the heat sink 233.

[0052] The heat sink 233 includes a rectangular plate-shaped base 2331 and a plurality of fins 2332 extending downward from the lower surface side of the base 2331. The base 2331 is fixed to the LED mounting board 232 in a state where it is stacked on the lower side of the LED mounting board 232. Specifically, a mounting hole 2331a is formed in the base 2331, and a mounting hole 232a is formed at a position corresponding to the mounting hole 2331a of the LED mounting board 232. The heat sink 233 is fixed to the LED mounting board 232 by inserting a screw (not shown) into the mounting hole 232a and the mounting hole 2331a with the mounting hole 2331a and the mounting hole 232a communicating with each other.

[0053] As described above, in this embodiment, the LED unit 23 includes a plurality of LEDs 231 as second light sources, an LED mounting board 232 on which the plurality of LEDs 231 are mounted, and a heat sink (heat dissipation section) 233 that dissipates heat from the LEDs 231.

[0054] Furthermore, the flash lamp unit 22 and the LED unit 23 are housed in the space of the housing 11 in an integrated state, as shown in FIG.

[0055] Specifically, LED mounting board 232 and base 2331 of heat sink (heat dissipation section) 233 have a rectangular ring shape in a plan view. Then, with case 21 housing flash lamp unit 22 inserted into the central opening of LED mounting board 232 and base 2331, LED mounting board 232 and base 2331 are fixed to case 21. In this manner, case 21 housing and holding flash lamp unit 22 is integrated with LED unit 23.

[0056] At this time, two rows of fins 2332 are formed on both sides in the X direction of the light-emitting unit 20 so as to line up in the Y direction. In this embodiment, each fin 2332 has a generally rectangular prism shape that is elongated in the vertical direction (Z direction). In this embodiment, the base 211 of the case 21 includes an extension portion 2111 that extends outward in the X direction beyond the cover 212, and a space is formed between this extension portion 2111 and the base 2331. A plurality of fins 2332 are formed so as to exist in the space formed between this extension portion 2111 and the base 2331.

[0057] Incidentally, electromagnetic waves (light) are emitted upward (+Z direction) in the vertical direction Z from the flash lamp unit 22. Also, since the multiple LEDs 231 are top-emitting LEDs that emit electromagnetic waves (light) upward (+Z direction) in the vertical direction Z, there is no need to take into account electromagnetic waves (light) emitted downward (-Z direction) in the vertical direction Z.

[0058] However, since the LED 231 has a light distribution, it has a spread in the X and Y directions. Therefore, unless special consideration is given to this, only a small portion of the electromagnetic waves (light) emitted from the LED 231 will be emitted from the emission port 113.

[0059] Therefore, in this embodiment, the light-irradiating cosmetic device 1 is provided with an optical system arranged between the flash lamp unit 22 and the LED unit 23 and the emission port 113. This optical system is a member for guiding at least a portion of the electromagnetic waves (light) emitted from at least one of the light source parts of the flash lamp unit 22 and the LED unit 23 to the emission port 113. By providing the light-irradiating cosmetic device 1 with an optical system as a means for guiding the electromagnetic waves (light) emitted from the LED 231 to the emission port 113, it is possible to apply more electromagnetic waves (light) to the skin.

[0060] In this embodiment, as described above, a tapered collector mirror is used as the optical system, and this tapered collector mirror is provided between the emission port 113 and the light-emitting unit 20. By providing a tapered collector mirror, it becomes possible to efficiently extract the electromagnetic waves (light) of the flash lamp 221 and the LED 231, and to irradiate the respective electromagnetic waves (light) to the same location simultaneously.

[0061] Furthermore, when electromagnetic waves (light) are applied to the skin, it is desirable that the distribution of the electromagnetic waves (light) at the emission port 113 is uniform in order to prevent more damage than necessary to the skin and to obtain a certain cosmetic effect.

[0062] Therefore, in this embodiment, an integrator optical system 17 capable of reducing unevenness in brightness by mixing electromagnetic waves (light) is used as the optical system. As such an integrator optical system 17, a conventionally known one can be used.

[0063] In this embodiment, a light pipe 171 surrounded by a mirror surface 171a capable of reflecting electromagnetic waves (light) of a wavelength spectrum emitted from the flash lamp unit 22 and the LED unit 23 is used as the integrator optical system 17.

[0064] The light pipe 171 may be, for example, a tapered light pipe 171 formed by combining four mirrors so that the opening area becomes smaller toward the emission direction (upward in the vertical direction Z). In this case, the mirror surface 171a of the light pipe 171 may have four mirror surfaces inclined with respect to the central axis of the light pipe 171, or at least one of the four mirror surfaces may be a mirror surface extending parallel to the central axis of the light pipe 171.

[0065] When the integrator optical system 17 is formed using such a tapered light pipe 171, a substantially quadrangular pyramid-shaped space that penetrates vertically is formed inside the tapered light pipe 171. Note that it is preferable that the tapered light pipe 171 has an opening on the entrance side (LED 231 side: the lower side in the vertical direction Z) that can accommodate all of the multiple LEDs 231.

[0066] By using such a tapered light pipe 171, it becomes possible to obtain the integrator optical system 17 at a lower cost. Furthermore, it becomes possible to more efficiently guide the electromagnetic wave (light) from the LED 231 to the emission port 113 and make the electromagnetic wave (light) approximately uniform at the emission port 113.

[0067] However, even if the integrator optical system 17 is used, depending on the arrangement of the flash lamp unit 22 and the LED 231 (LED unit 23), the radiation of the electromagnetic waves (light) toward the emission port 113 may be obstructed by the light source unit on the other side. As a result, the amount of electromagnetic waves (light) emitted from the emission port 113 may be reduced.

[0068] Therefore, in this embodiment, flash lamp unit 22 is arranged at a position where interference with the electromagnetic waves emitted from LED unit 23 is suppressed. Furthermore, LED unit 23 is arranged at a position where interference with the electromagnetic waves emitted from flash lamp unit 22 is suppressed. In this way, in this embodiment, it is possible to more reliably suppress interference with the electromagnetic waves (light) emitted toward outlet 113, thereby making it possible to extract a sufficient amount of light from outlet 113.

[0069] Specifically, flash lamp unit 22 is arranged in a state in which the electromagnetic waves emitted from LED unit 23 in the main direction do not overlap with the electromagnetic waves emitted from LED unit 23 in the main direction until they reach emission port 113. Furthermore, LED unit 23 is arranged in a state in which the electromagnetic waves emitted from flash lamp unit 22 in the main direction do not overlap with the electromagnetic waves emitted from flash lamp unit 22 in the main direction until they reach emission port 113. Here, the main direction of the electromagnetic waves emitted from flash lamp unit 22 is upward in the vertical direction, and the main direction of the electromagnetic waves emitted from LED unit 23 is upward in the vertical direction.

[0070] Furthermore, in this embodiment, the LED unit 23 is disposed at a position that does not overlap with the flash lamp unit 22 in a plan view (as viewed from the exit port 113). The flash lamp unit 22 and the LED unit 23 are disposed so that the exit surface 22a of the flash lamp unit 22 and the exit surface 23a of the LED unit 23 are positioned on approximately the same plane. Thus, in this embodiment, the LEDs (second light source) 231 of the LED unit (second light source section) 23 are disposed on a plane (XY plane) having a normal line in the direction of the main optical axis of the flash lamp unit (first light source section) 22.

[0071] At this time, it is preferable that flash lamp unit 22 is arranged at a position where it does not interfere with electromagnetic waves within a half-value angle of the electromagnetic waves emitted from LED unit 23. It is also preferable that LED unit 23 is arranged at a position where it does not interfere with electromagnetic waves within a half-value angle of the electromagnetic waves emitted from flash lamp unit 22.

[0072] In this way, it becomes possible to guide the electromagnetic waves (light) emitted from each of flash lamp unit 22 and LED unit 23 to emission port 113 without interfering with the light source unit of the other side.

[0073] With this configuration, it becomes possible to emit light (electromagnetic waves) from light sources having different wavelength spectra from the same area (one emission port). Therefore, it is possible to prevent the existence of areas on the skin that can only be irradiated with one light (electromagnetic wave) from the light sources having different wavelength spectra. Therefore, it becomes possible to simultaneously irradiate light (electromagnetic waves) with different wavelength spectra to more areas of the skin, thereby further improving the cosmetic effect of the practitioner.

[0074] In addition, even if the area of ​​the exit is small, it is possible to simultaneously emit light (electromagnetic waves) from multiple light sources from the exit, so that light (electromagnetic waves) emitted from multiple light sources can be simultaneously applied to small areas such as the wings of the nose and the corners of the eyes, thereby further enhancing the beauty effect.

[0075] In reality, it may not be possible to place them on the same plane, but in this case, it is preferable to place the light source unit on the other side in a position that does not block the light within the half-value angle of the electromagnetic waves (light) emitted from each light source unit. This also makes it possible to extract a sufficient amount of light.

[0076] Incidentally, the lifespan of the xenon tube used in the flash lamp 221 depends on the temperature of the xenon tube, and the higher the temperature, the shorter the lifespan. Therefore, in order to extend the lifespan of the xenon tube, it is necessary to properly cool the xenon tube.

[0077] In addition, LEDs generally have a maximum absolute rating determined by the junction temperature of the pn junction of the semiconductor, and cannot be used above that temperature. Therefore, when trying to extract high-energy electromagnetic waves (light) in order to achieve a higher beauty or hair removal effect, it is necessary to increase the current flowing through the LED. However, if the current flowing through the LED is increased, there is a problem that the LED temperature will rise and become unusable unless the LED is properly cooled.

[0078] In addition, when using an LED whose output is temperature dependent, it is possible to extract electromagnetic waves (light) with higher energy even with the same input power by using it at a low junction temperature.

[0079] Thus, in order to extract high-energy electromagnetic waves (light) to enhance the beauty and hair removal effects, it is necessary to properly cool both the flash lamp and the LED.

[0080] Therefore, in this embodiment, the cooling efficiency of the flash lamps 221 and the LEDs 231 is improved, thereby enabling the output of each light source to be improved, and the light emitted from multiple light sources with increased output can enhance the beauty and hair removal effects.

[0081] Specifically, the LEDs (second light source) 231 of the LED unit (second light source section) 23 are arranged on a plane (YX plane) having a normal line in the main optical axis direction (Z direction) of the flash lamp unit (first light source section) 22. In this embodiment, the LEDs 231 are arranged around the upper surface of the flash lamp filter 224, which is the emission surface 22a of the flash lamp unit 22 that houses the flash lamp 221.

[0082] The light-emitting unit 20 is provided with an air passage through which the wind generated by the fan (air blower) 16 can pass. Specifically, the case 21 is formed with an air passage (air passage) 24 that extends in a direction intersecting the main optical axis direction of the flash lamp unit 22 and allows the wind to pass from one side to the other side in the intersecting direction. In this embodiment, the air passage 24 is formed in the case 21 so as to extend in the Y direction. Thus, in this embodiment, the air passage 24 is formed so as to extend along a plane (XY plane) having the main optical axis direction of the flash lamp unit (first light source) 22 as a normal line. Note that the extension direction of the air passage 24 does not need to extend parallel to the XY plane, and may be along the XY plane in an inclined state.

[0083] Furthermore, the fan (air blowing section) 16 is disposed at a position where the light-emitting unit 20 can be easily cooled when air is blown. In this embodiment, the air generated by the fan 16 flows in the Y direction, and passes through the air blowing passage 24. That is, the air generated by the fan 16 flows along a plane (XY plane) whose normal line is the direction of the main optical axis of the flash lamp unit (first light source section) 22. The direction in which the air flows does not need to be parallel to the XY plane, and the air may flow at an angle to the XY plane.

[0084] In this embodiment, fan (wind generating unit) 16 is held in housing 11 in a state in which it generates wind along the extension direction of air passage 24 (Y direction).

[0085] Here, as described above, the LED (second light source) 231 is arranged in the housing 11 with the main optical axis direction facing upward (Z direction). Therefore, in this embodiment, the LED (second light source) 231 is arranged with the main optical axis direction of the LED (second light source) 231 tilted with respect to the longitudinal direction (Y direction) of the grip part 111, so that the wind flows along the longitudinal direction of the grip part 111.

[0086] In the present embodiment, air passage 24 includes first air passage 241 formed inside second base 2252, and second air passage 242 formed between cover 212 of case 21 and second base 2252. As shown in Fig. 10, first air passage 241 and second air passage 242 are formed in light-emitting unit 20 so as to allow air to pass straight through. This reduces loss of air when passing through air passage 24 of light-emitting unit 20 as much as possible, and enables light-emitting unit 20 to be cooled more efficiently.

[0087] Furthermore, the first ventilation passage 241 communicates with the second base 2252 and the vicinity of the flash lamp 221 inside the reflector 222, so that the wind can pass around the flash lamp 221.

[0088] As described above, in this embodiment, the flash lamp unit (first light source unit) 22 has a tubular flash lamp 221, and the tubular flash lamp 221 is arranged with its longitudinal direction substantially aligned with the Y direction. Therefore, in this embodiment, the airflow path 24 is formed to extend along the longitudinal direction of the flash lamp 221. This allows air to flow along the longitudinal direction of the tubular flash lamp 221, and allows the tubular flash lamp 221 to be cooled more efficiently. In this manner, in this embodiment, the airflow path 24 is formed to allow air to pass straight through and cool the light-emitting unit 20.

[0089] Furthermore, in this embodiment, the airflow passage 24 includes a third airflow passage 243 formed above the extension portion 2111 of the base 211 and outside the cover 212. The third airflow passage 243 is a space formed between the extension portion 2111 and the base 2331, and a plurality of fins 2332 are present in this space. Thus, in this embodiment, the LED unit (second light source unit) 23 includes the LED (second light source) 231 and the heat sink (heat dissipation unit) 233 thermally coupled to the LED (second light source) 231. The fins 2332 of the heat sink 233 are arranged in the third airflow passage 243. In this way, when the wind passes through the third airflow passage 243, the wind can be more efficiently blown onto the fins 2332 of the heat sink 233, and the LED unit (second light source unit) 23 can be more efficiently cooled. The third ventilation passage 243 is also designed to allow air to pass straight through and cool the light-emitting unit 20 (fins 2332).

[0090] In this embodiment, the third ventilation passage 243 is formed so as to open not only on both sides in the Y direction but also on the outside in the X direction. This makes it possible to more efficiently dissipate heat generated by the LEDs 231 from the fins 2332 of the heat sink 233 to the outside air (the air inside the housing 11).

[0091] The wind generated by the fan 16 and flowing in the Y direction is introduced into the first air passage 241 from one end side in the Y direction and is allowed to escape from the other end side. Similarly, the wind is introduced into the second air passage 242 from one end side in the Y direction and is allowed to escape from the other end side, and is introduced into the third air passage 243 from one end side in the Y direction and is allowed to escape from the other end side.

[0092] In this way, the flash lamp 221 present in the first ventilation passage 241 and the fins 2332 present in the third ventilation passage 243 are simultaneously cooled by the wind.

[0093] In this embodiment, the case 21 and the base 255 are cooled by the wind introduced into the second airflow passage 242, and the flash lamps 221 and the LEDs 231 are indirectly cooled by cooling the case 21 and the base 255. In this manner, in this embodiment, the wind generated by the fan 16 flows in the airflow passage 24, so that both the flash lamps 221 and the LEDs 231 can be efficiently cooled at the same time. This makes it possible to input more electric power and increase the power of the light, thereby improving the beauty and hair removal effects.

[0094] Incidentally, in the above-mentioned light-emitting unit 20, when the wind is made to flow in the Z direction, that is, in the direction of the main optical axis of the flash lamp unit (first light source unit) 22, an air passage passing through in the Z direction is formed in the light-emitting unit 20. However, due to the configuration of the light-emitting unit 20, it is not possible to form an air passage passing through in the Z direction on the fin side of the heat sink, so the wind directed toward the fin side is bent significantly on the mounting board side before passing upward. Therefore, the loss of the wind when passing through the air passage of the light-emitting unit 20 becomes large, and it is not possible to efficiently cool the flash lamp 221 and the LED 231 at the same time.

[0095] Furthermore, in order to prevent wind loss from becoming large even when wind is made to flow in the Z direction through the light-emitting unit 20, it was necessary to bend the fins and protrude them to the outside of the mounting board. Therefore, in order to prevent wind loss from becoming large even when wind is made to flow in the Z direction through the light-emitting unit 20, the fins would have to be made complicated, and the light-emitting unit 20 itself would have to be made larger.

[0096] Thus, when an air passage for blowing air in the Z direction is formed in the light-emitting unit 20, it is not possible to efficiently cool the flash lamps 221 and the LEDs 231 simultaneously while achieving miniaturization.

[0097] However, as in the present embodiment, if the airflow is made to flow in a direction intersecting the Z direction, even when the size is reduced, it is possible to prevent the airflow introduced into the air passage 24 from being significantly bent. That is, even when the fins 2332 are rod-shaped and extend in one direction (the up-down direction), it is possible to prevent the airflow loss from becoming large.

[0098] Moreover, even if the fins 2332 are formed so as to be hidden inside the mounting board 232 in a plan view, it is possible to suppress the loss of wind from becoming too large. In this way, by making the wind flow in a direction intersecting the Z direction, it is possible to form the air passage 24 in which the loss of the passing wind is not too large while miniaturizing the light-emitting unit 20.

[0099] Therefore, in this embodiment, the air is caused to flow in a direction intersecting the Z direction, thereby making it possible to efficiently cool both the flash lamps 221 and the LEDs 231 simultaneously while miniaturizing the light-emitting unit 20.

[0100] Even when the air is made to flow in a direction intersecting the Z direction, it is preferable to form the air passage 24 so that the loss of the air passing through it is minimized. For example, it is preferable to form the air passage 24 so that there are as few parts as possible that generate vortexes in the air passage 24 as possible.

[0101] [An example of how a light-emitting beauty device works] The operation of the light-irradiating cosmetic device 1 housing the light-emitting unit 20 configured as above will be described.

[0102] First, the operation switch of the light-irradiating cosmetic device 1 housing the light-emitting unit 20 is operated to turn the power on.

[0103] At this time, when a selection switch is provided and the selection switch selects driving both the flash lamp driving unit 13 and the LED driving unit 14, power is supplied from the power supply unit 12 to the flash lamp driving unit 13. Then, the flash lamp 221 is caused to emit light by the flash lamp driving unit 13. Also, power is supplied from the power supply unit 12 to the LED driving unit 14, and the LED 231 is caused to emit light by the LED driving unit 14.

[0104] Then, the electromagnetic waves (light) emitted from the flash lamp 221 and the electromagnetic waves (light) emitted from the LED 231 are introduced into the integrator optical system 17, and the two types of electromagnetic waves (light) are emitted to the outside from the emission port 113 in a more evenly mixed state.

[0105] In this state, the light-irradiating cosmetic device 1 is slid along the skin with the skin covering the emission port 113. In this way, the light is irradiated onto the surface of the practitioner's skin, and the desired cosmetic effect is imparted to the practitioner's skin.

[0106] In this manner, in the present embodiment, when electromagnetic waves (light) are emitted from flash lamp unit 22 and LED unit 23, at least a portion of the two types of electromagnetic waves (light) are emitted from the same region (one emission port 113). Note that in the present embodiment, the two types of electromagnetic waves (light) are the electromagnetic waves emitted from flash lamp unit 22 and the electromagnetic waves emitted from LED unit 23.

[0107] In addition, when the power is turned on, if the selection switch selects driving either the flash lamp driving unit 13 or the LED driving unit 14, electromagnetic waves (light) emitted from one of the light source units will be emitted from the emission port 113.

[0108] At this time, power is also supplied from power supply unit 12 to fan drive unit 15, fan drive unit 15 drives fan 16, and the wind generated by the driving of fan 16 passes through air passage 24. Then, flash lamp 221 and LED 231 are cooled by the wind passing through air passage 24.

[0109] As described above, the light-irradiating cosmetic device 1 according to this embodiment is a device that exerts a cosmetic or hair removal effect by using a flash lamp 221 and an LED (LED light source) 231, and blows air generated by a fan (blower) 16 to a light-emitting unit 20 so that the air flows along a plane (XY plane) whose normal is the optical axis of a flash lamp 221 having a predetermined wavelength spectrum.

[0110] In the above embodiment, the fan (wind generating unit) 16 is held in the housing 11 in a state in which the fan (wind generating unit) 16 generates wind along the extension direction (Y direction) of the air passage 24. However, as shown in Figs. 12 and 13, the fan (wind generating unit) 16 may be held in the housing 11 in a state in which the fan (wind generating unit) 16 generates wind along a direction intersecting the extension direction (Y direction) of the air passage 24. That is, the fan (wind generating unit) 16 may be disposed so that the generated wind is blown obliquely to the light-emitting unit 20. In this case, too, it is preferable to dispose the fan (wind blowing unit) 16 in a position where the light-emitting unit 20 can be easily cooled when the fan (wind blowing unit) 16 blows air.

[0111] Such a configuration can be obtained, for example, by accommodating fan (wind generating unit) 16 in housing 11 so as to generate wind flowing in the Y direction, and accommodating light-emitting unit 20 in housing 11 with the extension direction of air passage 24 intersecting with the Y direction. That is, when wind is made to flow along the longitudinal direction (Y direction) of grip portion 111, light-emitting unit 20 is disposed so that the extension direction of air passage 24 intersects with the longitudinal direction (Y direction) of grip portion 111.

[0112] In addition, it is also possible to accommodate the light-emitting unit 20 in the housing 11 with the extension direction of the air passage 24 aligned in the Y direction, and to accommodate a fan (wind generating unit) 16 in the housing 11 so as to generate wind that flows in a direction intersecting the Y direction.

[0113] With this configuration, the following effects can be achieved.

[0114] For example, as in the above embodiment, when airflow is generated in the Y direction and air passage 24 is extended in the Y direction, air heated on the upstream side is sent to fins 2332 on the far side (downstream side). This may result in variation in the cooling effect between the upstream side and the downstream side.

[0115] In contrast, if the wind is directed obliquely at the light-emitting unit 20, the wind generated by the fan (wind generating unit) 16 can also be directed directly at the fins 2332 of the heat sink 233 on the far side (downstream side). As a result, it becomes possible to send wind that has not been heated on the upstream side to the downstream side, thereby making it possible to suppress variations in the cooling effect between the upstream side and the downstream side.

[0116] Even when the wind is directed at the light-emitting unit 20 at an angle, it is preferable to position the fan (wind generating unit) 16 in such a state that the generated wind can be introduced into the first air passage 241 and the second air passage 242.

[0117] [Actions and Effects] The characteristic configurations of the light-emitting unit and the light-irradiating cosmetic device described in the above embodiment and the effects obtained thereby will be described below.

[0118] The light emitting unit 20 shown in the above embodiment includes a first light source section 22 having a predetermined wavelength spectrum, and a second light source section 23 having a wavelength spectrum different from that of the first light source section 22.

[0119] Further, the second light source 231 of the second light source section 23 is disposed on a plane having the principal optical axis direction of the first light source section 22 as a normal line.

[0120] An air passage 24 is formed which extends in a direction intersecting the main optical axis direction of the first light source unit 22 and allows air to pass from one side to the other in the intersecting direction.

[0121] In this way, by arranging the second light source 231 on a plane whose normal line is the main optical axis direction of the first light source unit 22 and providing an air passage 24 extending in an intersecting direction in the case 21, it becomes possible to efficiently cool the first light source unit 22 and the second light source unit 23 simultaneously.

[0122] As a result, it becomes possible to lower the temperatures of the first light source 221, the second light source 231 and their surroundings, and it becomes possible to increase the light power of the first light source 221 and the second light source 231 by supplying electric power, thereby making it possible to further improve the cosmetic effect and the hair removal effect.

[0123] For example, when an LED is used as the second light source 231, the LED can be cooled more efficiently. Therefore, even if an LED that generates a relatively large amount of heat is used as the second light source 231, the LED can be cooled so that it can be operated appropriately, and therefore, the cosmetic effect and hair removal effect can be further improved.

[0124] In this way, according to this embodiment, it is possible to obtain a light-emitting unit 20 that can further improve the cosmetic effect on the skin.

[0125] Moreover, the air passage 24 may extend along a plane having the principal optical axis direction of the first light source unit 22 as a normal line.

[0126] In this way, when the second light source 231 is disposed on a plane normal to the principal optical axis direction of the first light source section 22, it becomes possible to more reliably apply wind to the first light source section 22 and the second light source section 23. Therefore, it becomes possible to more efficiently cool the first light source section 22 and the second light source section 23 simultaneously.

[0127] Moreover, the second light source section 23 may include the second light source 231 and the heat dissipation section 233 thermally coupled to the second light source 231 , and the heat dissipation section 233 may be disposed in the air passage 24 .

[0128] In this way, when the wind passes through the ventilation passage 24, it becomes possible to more efficiently blow the wind onto the heat dissipation portion 233, and therefore it becomes possible to more efficiently cool the second light source portion 23.

[0129] Alternatively, the first light source unit 22 may have a tubular flash lamp 221 , and the air passage 24 may extend along the longitudinal direction of the flash lamp 221 .

[0130] This allows the air to flow along the longitudinal direction of the tubular flash lamp 221, making it possible to cool the tubular flash lamp 221 more efficiently.

[0131] The second light source unit 23 may include an LED 231 .

[0132] This makes it possible to select a wavelength according to the desired cosmetic effect, and therefore it becomes possible to provide not only the desired cosmetic effect but also a hair removal effect, making it easier to achieve a variety of cosmetic effects.

[0133] Furthermore, the peak wavelength of the electromagnetic wave emitted from the second light source unit 23 may be 500 nm to 1200 nm.

[0134] This light of 500 nm to 1200 nm has high penetration into the skin and reaches deep into the skin, and is capable of increasing the temperature of the skin deep inside. Therefore, if a light source having a wavelength band of 500 nm to 1200 nm is selected as the second light source 231, it becomes possible to apply the electromagnetic waves (light) of the flash lamp 221 to the skin in a state where the temperature of the deep inside is increased, and the hair removal effect can be improved.

[0135] Furthermore, the light-irradiating cosmetic device 1 shown in the above embodiment includes the above-mentioned light-emitting unit 20, a housing 11 having a grip portion 111 and in which the light-emitting unit 20 is housed, and a wind generating portion 16 that is held in the housing 11 and generates wind that passes through the air passage 24.

[0136] In this way, it becomes possible to send the wind generated by the wind generation unit 16 to the airflow passage 24 extending in the intersecting direction, and the temperature of the first light source 221, the second light source 231 and the surrounding area can be reduced by the wind generated by the wind generation unit 16. As a result, it becomes possible to increase the light power of the first light source 221 and the second light source 231 by supplying electric power, and it becomes possible to further improve the cosmetic effect and the hair removal effect.

[0137] As described above, according to this embodiment, it is possible to obtain a light-irradiating beauty device 1 capable of enhancing the beauty effect. That is, by improving the cooling efficiency, it is possible to improve the output of the light source, and it is possible to obtain a light-irradiating beauty device 1 capable of enhancing the beauty and hair removal effect by the light emitted from multiple light sources with increased output.

[0138] Furthermore, when electromagnetic waves are radiated from the first light source unit 22 and the second light source unit 23, respectively, the housing 11 may be formed with an exit port 113 through which at least a portion of the electromagnetic waves radiated from the first light source unit 22 is emitted. Furthermore, when electromagnetic waves are radiated from the first light source unit 22 and the second light source unit 23, respectively, at least a portion of the electromagnetic waves radiated from the second light source unit 23 may also be emitted from this exit port 113. The exit port 113 may be formed in the housing 11 so as to open in a direction intersecting with the longitudinal direction of the grip portion 111.

[0139] In this way, light emitted from light sources having different wavelength spectra can be irradiated onto the skin from the same plane at the same time, making it possible to provide various beauty effects to the skin. Also, since light outlet 113 can be easily applied to the skin while gripping portion 111 in the hand, the usability of light-irradiating beauty device 1 can be improved.

[0140] Moreover, the wind generating unit 16 may be held in the housing 11 in a state in which the wind generating unit 16 generates wind along the extension direction of the air passage 24.

[0141] This makes it possible to more efficiently send the wind generated by the wind generation unit 16 to the air passage 24, thereby making it possible to more efficiently cool the first light source unit 22 and the second light source unit 23 simultaneously.

[0142] Moreover, the wind generating unit 16 may be held in the housing 11 in a state in which the wind generating unit 16 generates wind along a direction intersecting the extension direction of the air passage 24.

[0143] This makes it possible to send air that has not been heated on the upstream side to the downstream side, thereby making it possible to suppress variations in the cooling effect between the upstream and downstream sides.

[0144] [others] The light-emitting unit and light-irradiating cosmetic device according to the present disclosure have been described above, but the present disclosure is not limited to these descriptions, and it will be obvious to those skilled in the art that various modifications and improvements are possible.

[0145] For example, the present disclosure can be applied to the embodiments in which the configurations shown in the above embodiments are modified, replaced, added, omitted, etc. Also, it is possible to combine the components described in the above embodiments to form new embodiments.

[0146] In the above embodiment, the flash lamp unit 22 and the LED unit 23 are arranged so that the emission surface 22a of the flash lamp unit 22 and the emission surface 23a of the LED unit 23 are located on approximately the same plane. However, the arrangement positions of the flash lamp unit 22 and the LED unit 23 are not limited to such positions, and they may be arranged at positions where interference with electromagnetic waves emitted from the light source unit of the other side is suppressed. For example, the heights of the emission surface 22a of the flash lamp unit 22 and the emission surface 23a of the LED unit 23 may be different.

[0147] In the above embodiment, the tapered light pipe 171 is used as the integrator optical system 17, but the light pipe 171 may be any light pipe capable of guiding light to the exit port 113 more efficiently than when no light pipe is provided. For example, an integrator optical system such as a linear light pipe or a flywheel array lens may be used. This also makes it possible to more efficiently guide the electromagnetic wave (light) to the exit port 113, and to make the illuminance distribution at the exit port 113 substantially uniform.

[0148] In the above embodiment, the flash lamp 221 is shown as an example of the first light source, and the LED 231 is shown as the second light source. However, the first light source and the second light source may be anything that can emit electromagnetic waves, and may be, for example, an LD (Laser Diode), an organic EL, or the like. This also allows the wavelength to be selected according to the desired cosmetic effect, and the desired cosmetic effect and hair removal effect can be achieved.

[0149] In addition, in the above embodiment, an integrated light-irradiating cosmetic device (a light-irradiating cosmetic device in which the light-emitting unit cannot be detached) 1 is exemplified, but it is also possible to provide an attachment that is detachably attached to the main body. In this case, the attachment can be one of a plurality of light-irradiating attachments, such as an attachment for the body and an attachment for the face. In this way, a plurality of attachments can be used depending on the purpose, resulting in a more versatile light-irradiating cosmetic device, and also making it easier to replace the light-emitting unit.

[0150] In the above embodiment, the light-emitting unit 20 is exemplified as including both the flash lamp unit 22 and the LED unit (LED light source unit) 23. However, the light-emitting unit 20 does not need to include both, and it is also possible to include only one of the flash lamp unit 22 and the LED unit (LED light source unit) 23.

[0151] Furthermore, in the above embodiment, the flash lamp unit (first light source unit) 22 and the LED unit (second light source unit) 23 are held in the case 21. However, this configuration is not necessary, and for example, it is also possible to hold the flash lamp unit (first light source unit) 22 in the case 21, while holding the LED unit (second light source unit) 23 by a separate part such as a housing.

[0152] Furthermore, by providing a device for hair removal (a device having a cutting blade) or the like, the device may have a function other than light irradiation.

[0153] In addition, in the above embodiment, the opening 1121a of the protruding wall 1121 is used as the light exit port 113, but a light guide plate may be provided in the opening 1121a, and the opening 1121a and the light guide plate may form the light exit port 113.

[0154] Furthermore, the specifications of the first light source unit, the second light source unit, and other details (shape, size, layout, etc.) can also be changed as appropriate. [Industrial Applicability]

[0155] As described above, the light-emitting unit and light-irradiating cosmetic device disclosed herein can further enhance the cosmetic effect, and can therefore be applied to devices that irradiate light to the skin to obtain a biological effect, specifically, facial beauty devices, hair removal devices, physical therapy devices, medical devices, etc. [Explanation of symbols]

[0156] 1 Light irradiation type beauty device 11. Housing 111 Gripping part 113 Exit port 16 Fan (wind generating part) 20 Light Emitting Unit 22 Flash lamp unit (first light source unit) 221 Flash lamp (first light source) 23 LED unit (second light source) 231 LED (second light source) 233 Heat sink (heat dissipation part) 24 Air duct

Claims

1. a first light source unit having a predetermined wavelength spectrum; a second light source unit having a wavelength spectrum different from that of the first light source unit; Equipped with a second light source of the second light source unit is disposed on a plane having a normal line in a direction of a main optical axis of the first light source unit, An air passage is formed which extends in a cross direction crossing a main optical axis direction of the first light source unit and allows air to pass from one side to the other side in the cross direction; The air passage extends along a plane having a normal line in the direction of a main optical axis of the first light source unit, The first light source unit is disposed in the air passage, the second light source unit includes a second light source and a heat dissipation unit thermally coupled to the second light source, The heat dissipation unit is disposed in the air passage. Light emitting unit.

2. The first light source unit has a tubular flash lamp, The air passage extends along the longitudinal direction of the flash lamp. The light-emitting unit according to claim 1 .

3. The second light source unit has an LED. The light-emitting unit according to claim 1 .

4. The peak wavelength of the electromagnetic wave emitted from the second light source unit is 500 nm to 1200 nm. The light-emitting unit according to any one of claims 1 to 3.

5. A light-emitting unit according to any one of claims 1 to 4, A housing having a grip portion and accommodating the light emitting unit; a wind generating unit that is held by the housing and generates wind that passes through the air passage; Equipped with Light irradiation type beauty device.

6. the housing is formed with an emission opening through which at least a part of the electromagnetic waves radiated from the first light source unit and at least a part of the electromagnetic waves radiated from the second light source unit are emitted when electromagnetic waves are radiated from the first light source unit and the second light source unit, respectively; The light exit port is formed in the housing so as to open in a direction intersecting with a longitudinal direction of the grip portion. The light-irradiating cosmetic device according to claim 5 .

7. The airflow generating unit is held in the housing in a state in which the airflow generating unit generates airflow along an extension direction of the air passage. The light-irradiating cosmetic device according to claim 5 or 6.

8. The airflow generating unit is held in the housing in a state in which the airflow generating unit generates airflow along a direction intersecting an extension direction of the air passage. The light-irradiating cosmetic device according to claim 5 or 6.

Images