Light Emitting Unit

Abstract

To enable a light emitting unit which projects light to a radiation object to be attached to various commercially available blowers.SOLUTION: A light emitting unit 100 includes: a housing 110 in which a light emitting element is incorporated; and a mechanism 120 which couples the housing 110 to a dryer 200. The coupling mechanism 120 includes: a mechanism which fixes the housing 110 to the dryer 200; and a mechanism which adjusts at least one of a radiation position of light of the light emitting element to the radiation object and a wind direction of the dryer 200 in a state that the fixing mechanism fixes the housing 110 to the dryer 200.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a light-emitting unit that can be attached to a hair dryer, particularly a hair dryer. [Background technology]

[0002] It is said that in Japan alone, 17 million men and 5 million women are concerned about thinning hair. The applicant has been conducting joint research on hair growth and hair care using light and wind for several years with Dr. Kazuhiko Yoshizawa, director of Yotsuya Rose Clinic, a hair growth specialist hospital, and the results were published by Dr. Yoshizawa in November 2019 as "Effectiveness of thinning hair care and hair care using LED light and warm air using a hair dryer equipped with a red LED: Study in mice and humans" (Diagnostics and New Drugs 2019; 56: 737-747).

[0003] In this research, a light-emitting unit was attached to a commercially available hair dryer, and it was demonstrated that LEDs of a specific wavelength and wind can be used to promote hair growth, promote hair care, and provide hair care. In this study, sufficient procedures were followed, including mouse testing, human sensory testing, and human clinical trials. During this research, the applicant obtained Patent No. 6129392. In the patent specification (Patent Document 1), a hair care device in which a light-emitting unit is attached to the tip of the hair dryer is proposed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6129392 Summary of the Invention [Problem to be solved by the invention]

[0005] The hair dryer described in Patent Document 1 has a detachable light-emitting unit at the tip, and naturally employs a special structure for mounting the light-emitting unit.

[0006] On the other hand, considering that air blowers such as hair dryers are durable consumer goods and are not replaced frequently, it can be said that measures to utilize existing air blowers are necessary in addition to promoting the spread of dedicated air blowers.

[0007] The present invention has been made in consideration of this problem, and has an object to provide a light-emitting unit that can be attached to an existing air blower. [Means for solving the problem]

[0008] The light-emitting unit of the present invention comprises a housing that incorporates a light-emitting element, and a mechanism for connecting the housing to a blower device, and the connecting mechanism comprises a mechanism for fixing the housing to the blower device, and a mechanism for adjusting at least one of the irradiation position of the light from the light-emitting element on the target and the wind direction of the blower device while the housing is fixed to the blower device by the fixing mechanism. Effect of the Invention

[0009] The light emitting unit of the present invention can be applied to a variety of existing air blowing devices. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a perspective view showing a state in which the light-emitting unit of the first embodiment is attached to a dryer. [Diagram 2] FIG. 2 is a side view of the light-emitting unit according to the first embodiment. [Diagram 3] FIG. 2 is a front view of the light-emitting unit according to the first embodiment. [Figure 4] FIG. 2 is a top view of the light-emitting unit according to the first embodiment. [Diagram 5] FIG. 2 is a perspective view showing a state in which a housing and a coupling mechanism of the first embodiment are separated. [Figure 6] 2 is an XZ cross-sectional view of the light-emitting unit according to the first embodiment. FIG. [Figure 7] 13 is a perspective view showing a state in which a housing and a coupling mechanism are coupled together in a light-emitting unit according to a second embodiment. FIG. [Figure 8] 13 is a perspective view showing a state in which the housing and the coupling mechanism are separated in the light-emitting unit of the second embodiment. FIG. [Figure 9] 9(a) and 9(b) are YZ cross-sectional views showing the state in which the housing and the coupling mechanism are separated and coupled, respectively, in the light-emitting unit of the second embodiment. [Figure 10] 13 is a perspective view showing a state in which the housing and the coupling mechanism are coupled together in the light-emitting unit of the third embodiment. FIG. [Figure 11] 13 is a perspective view showing a state in which the housing and the coupling mechanism are separated in the light-emitting unit of the third embodiment. FIG. [Figure 12] 13 is a perspective view showing a state in which a housing and a coupling mechanism are coupled together in a light-emitting unit according to a fourth embodiment. FIG. [Figure 13] 13 is a perspective view showing a state in which the housing and the coupling mechanism are separated in the light-emitting unit of the fourth embodiment. FIG. [Figure 14] FIG. 13 is an XZ cross-sectional view of the light-emitting unit according to the fourth embodiment. [Figure 15] FIG. 13 is a perspective view showing a state in which the housing and the coupling mechanism are separated in the light-emitting unit of the fifth embodiment. [Figure 16] FIG. 13 is a perspective view showing a state in which the housing and the coupling mechanism are coupled together in the light-emitting unit of the fifth embodiment. [Figure 17] 17(a) to 17(c) are XZ cross-sectional views showing how the housing and the coupling mechanism are coupled to each other in the light-emitting unit of the fifth embodiment. [Figure 18] FIG. 13 is a perspective view showing a modified example of the light-emitting unit of the fifth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the same or equivalent components and members in each drawing will be given the same reference numerals, and descriptions thereof will be omitted as appropriate.

[0012] (First embodiment) FIG. 1 is a perspective view showing a state in which the light-emitting unit 100 of the first embodiment is attached to the dryer 200. In FIG. 1, the airflow direction of the dryer 200 is indicated by the X-axis. The dryer 200 in FIG. 1 is a general dryer available on the market, and does not have a dedicated structure for attaching the light-emitting unit 100. The light-emitting unit 100 irradiates light onto the scalp portion exposed by the airflow of the dryer 200, thereby more effectively exerting the hair growth effect by light. The light-emitting unit 100 is attached to, for example, the tip portion 201 of the dryer 200. In this embodiment, the light-emitting unit 100 is fixed to the dryer 200 by fastening the fastening member 130 of the light-emitting unit 100 to the tip portion 201 of the dryer 200. In this way, by attaching the light-emitting unit 100 to the tip 201 of the dryer 200, it becomes easy to irradiate the scalp with light emitted by the light-emitting element 112 of the light-emitting unit 100 described later, while directing the airflow of the dryer 200 toward the hair and scalp. In addition, in the standard mounting position of the light-emitting unit 100 on the dryer 200 as shown in FIG. 1, the center of gravity G of the secondary battery 113 described later is closer to the handle 202 than the installation position of the light-emitting element 112 in the airflow direction (x-axis direction) of the dryer 200. Since the secondary battery 113 is relatively heavy among the components of the light-emitting unit 100, it is moved closer to the handle 202 to reduce the moment during use and reduce the load on the user. In addition, an example of the target of light irradiation is the scalp, but is not limited thereto, and can be any part of the skin. The dryer of this embodiment is an example of a blowing device.

[0013] Fig. 2 is a side view of the light-emitting unit 100 of this embodiment, Fig. 3 is a front view thereof, and Fig. 4 is a top view thereof. Fig. 5 is a rear perspective view of the light-emitting unit 100 with the housing 110 and the coupling mechanism 120 removed. In the following figures, the horizontal direction perpendicular to the X-axis is the Y-axis, and the direction perpendicular to the X-axis and Y-axis is the Z-axis. The light-emitting unit 100 includes a housing 110 and a coupling mechanism 120 that couples the housing 110 to the dryer 200. The housing 110 and the coupling mechanism 120 are configured to be detachable.

[0014] The housing 110 includes a lens 111, a light emitting element 112, a secondary battery 113, a switch 114, and a connector 115. The housing 110 is configured, for example, in a cylindrical shape. For example, in this embodiment, the dimension of the housing 110 in the X direction from a front end 110a to a rear end 110b is 96.5 mm, and the maximum diameter of the cylindrical shape is 28 mm.

[0015] Lens 111 is, for example, a Fresnel lens or a convex lens, and is attached to tip 110a of housing 110. Lens 111 is disposed on the front side of light emitting element 112 so that light irradiated from light emitting element 112 is incident on lens 111, and disposed so that its optical axis coincides with the optical axis of light emitted from light emitting element 112. The light emitted by light emitting element 112 is collected by lens 111 and released.

[0016] Light emitting element 112 is an LED or the like, and is built into housing 110. The assumed irradiation distance of light emitting unit 100 is in the range of 50 to 150 mm from lens 111.

[0017] The secondary battery 113 is a lithium ion battery or the like, and is built into the housing 110. The secondary battery 113 is connected to the light emitting element 112 and supplies power to the light emitting element 112.

[0018] The switch 114 is used to instruct the light emitting element 112 to light up.

[0019] A connector 115 is provided at a rear end 110b located on the opposite side in the X direction from the front end 110a of the housing (see FIG. 4, for example). A cable (not shown) that supplies power to the secondary battery 112 is attached to and detached from the connector 115. An AC / DC adapter (not shown) is provided at the end of the cable, and a direct current voltage is applied to the connector 115. This charges the secondary battery 113.

[0020] The coupling mechanism 120 includes a fastening member 130 and an orientation adjustment mechanism 140 .

[0021] The fastening member 130 is configured to be able to fix the housing 110 to the dryer 200 in a direction in which the light of the light emitting element 112 faces the front of the dryer 200. The fastening member 130 of this embodiment fastens the tip portion 201 of the dryer 200 to fix the housing 110. The fastening member 130 of this embodiment is made of, for example, silicon, and has a band 131, a plurality of insertion holes 132 provided in the band 131, and a plurality of protrusions 133 provided in the band 131 and configured to be able to be inserted into the insertion holes 132. After wrapping and fastening the band 131 around any part of the dryer 200, the protrusions 133 are inserted into the insertion holes 132, thereby fixing the housing 110 to the dryer 200. The fastening member 130 may be provided with urethane or other flexible or adhesive material on the surface portion that comes into contact with the dryer 200. The fastening member 130 of this embodiment is an example of a fixing mechanism.

[0022] The direction adjustment mechanism 140 is configured to be able to adjust the irradiation position of the light from the light-emitting element 112 on the scalp by adjusting the direction of the light from the light-emitting element 112 while the housing 110 is fixed to the dryer 200 by the fastening member 130. The direction adjustment mechanism 140 of the present embodiment is an example of an adjustment mechanism.

[0023] Fig. 5 is a perspective view showing a state in which the housing 110 and the coupling mechanism 120 are separated, and Fig. 6 is an XZ cross-sectional view of the light-emitting unit 100 of the first embodiment. The orientation adjustment mechanism 140 of this embodiment includes a coupling portion 141 and a base portion 142 on which the coupling portion 141 is placed.

[0024] The coupling portion 141 is provided integrally with the housing 110 in order to place and couple the housing 110 to the coupling mechanism 120. Referring to Fig. 6, the coupling portion 141 of this embodiment includes a spherical recess 141a and incorporates a steel plate 141b. The steel plate 141b of this embodiment is an example of a ferromagnetic member. The steel plate 141b can be substituted with a metal plate made of a ferromagnetic material other than steel.

[0025] The base portion 142 is provided integrally with the band 131 so that the recessed portion 141a of the coupling portion 141 is placed thereon. The base portion 142 of the present embodiment includes a spherical protruding portion 142a and has a built-in magnet 142b. The magnet 142b is, for example, a neodymium magnet.

[0026] The spherical convex portion 142a is configured to fit into the spherical concave portion 141a. The concave portion 141a and the convex portion 142a fit together, and thus the housing 110 is coupled to the coupling mechanism 120. At this time, the magnet 142b attracts the steel plate 141b by its magnetic force. Since the concave portion 141a and the convex portion 142a are each formed into a spherical shape, the housing 110 operates to slide along the spherical surface of the convex portion 142a. Therefore, while the concave portion 141a and the convex portion 142a are held in a fitted state by the magnetic force, the housing 110 can rotate around the convex portion 142a in any of the tilt direction (XZ direction), pan direction (YX direction), and roll direction (YZ direction).

[0027] Here, in order to effectively exert the hair growth effect by the air blown by the dryer 200 and the light emitted by the light emitting unit, it is necessary to install the light emitting unit at a position on the dryer 200 where the light can be effectively irradiated onto the scalp part to which the dryer 200 blows air. However, the shapes of the dryers 200 available on the market are extremely diverse. Therefore, depending on the shape of the dryer 200 at the installation location, the light may not be effectively irradiated onto the air blowing part of the dryer 200, and a sufficient hair growth effect may not be exerted.

[0028] According to this embodiment, it is possible to adjust the position where the light from the light-emitting element 112 is irradiated on the scalp. This makes it easier to irradiate the light from the light-emitting element 112 to the air-blowing location of the dryer 200. Therefore, restrictions on the installation position of the dryer 200 are relaxed, and it becomes possible to use the dryer more easily while fully exerting the hair-growth effect.

[0029] According to this embodiment, the housing 110 is rotatably coupled to the coupling mechanism 120 in a state where the spherically formed recess 141a and the protrusion 142a are fitted together. According to this configuration, in particular, the housing 110 is rotatable in the tilt direction and the pan direction around the protrusion 142a (see Figs. 4 and 6), so that even if the light-emitting unit 100 is attached to a location whose central axis is an axis that is substantially perpendicular to the air-blowing direction (X direction in this embodiment), such as the handle of the dryer 200, it becomes easy to irradiate the light of the light-emitting element 112 to the air-blowing location of the dryer 200. Therefore, the installation position of the light-emitting unit 100 on the dryer 200 can be selected more flexibly, and convenience is increased.

[0030] According to this embodiment, the connection between the housing 110 and the coupling mechanism 120 is maintained by the magnet 142b attracting the steel plate 141b with the recessed portion 141a and the protruding portion 142a fitted together. According to this configuration, the connection between the housing 110 and the coupling mechanism 120 is maintained by the magnetic force acting between the magnet 142b and the steel plate 141b, so that the housing 110 is prevented from coming off the coupling mechanism 120 when the light direction of the light emitting element 112 is adjusted.

[0031] According to the present embodiment, the housing 110 incorporates the secondary battery 113, and the housing 110 and the coupling mechanism 120 are detachably coupled. Here, if the housing 110 and the coupling mechanism 120 cannot be detached, when charging the secondary battery 113, it is necessary to charge the secondary battery 113 with the coupling mechanism 120 attached to the dryer 200, or to detach the coupling mechanism 120 from the dryer 200 and then charge the secondary battery 113. Since the dryer 200 is relatively large and heavy, this is a burden on the worker. According to this configuration, by making the housing 110 and the coupling mechanism 120 detachable, charging is possible by the simple action of detaching the housing 110 and the coupling mechanism 120, so that the burden on the worker during charging can be reduced.

[0032] Modifications will be described below.

[0033] In the embodiment, the irradiation position of the light emitting element 112 on the scalp is adjusted by adjusting the direction of the light of the light emitting element 112, but this is not limited thereto. For example, the housing 110 may be attached to one end of a stretchable member, and the coupling mechanism 120 may be attached to the other end, and the position of the housing 110 relative to the dryer 200 may be adjusted to adjust the irradiation position of the light emitting element 112 on the scalp. In addition, in the embodiment, the irradiation position of the light emitting element 112 on the scalp is adjusted, but this is not limited thereto. For example, the light emitting unit 100 may be provided with a mechanism for adjusting the wind direction of the dryer 200, so that the wind of the dryer 200 hits the irradiation position of the light emitting element 112 on the scalp. In this case, for example, a mechanism including a rotatable wind direction plate may be provided in the light emitting unit 100 so that the wind direction of at least one of the X direction and Y direction of the air blown by the dryer 200 can be adjusted, and this mechanism may be disposed at the tip portion 201 of the dryer 200. To summarize the above, it can be said that orientation adjustment mechanism 140 adjusts at least one of the position at which light from light-emitting element 112 is irradiated onto the target and the airflow direction from dryer 200 while housing 110 is fixed to dryer 200 by fastening member 130.

[0034] In the embodiment, an LED is used as the light emitting element 112, but other types of light emitting elements such as a semiconductor laser diode or an organic EL element may be used. Although one light emitting element 112 is used, it is of course possible to use a plurality of light emitting elements, and the light emitting element may be in an array or matrix form.

[0035] In the embodiment, the housing 110 is configured to have a cylindrical shape, but is not limited to this. For example, the housing 110 may be configured to have a polygonal shape, a spherical shape, a conical shape, a polygonal pyramid shape, or any other shape.

[0036] The arrangement of the switch 114, the connector 115, etc. may be changed as appropriate in accordance with the design of the light-emitting unit 100.

[0037] In the embodiment, the coupling portion 141 is provided integrally with the housing 110, but may be provided separately.

[0038] In the embodiment, the coupling portion 141 includes the recess 141a, and the base portion 142 includes the protrusion 142a, but this is not limited thereto. The coupling portion 141 may include the protrusion 142a, and the base portion 142 may include the recess 141a. Also, in the embodiment, the coupling portion 141 includes the steel plate 141b, and the base portion 142 includes the magnet 142b, but this is not limited thereto. The coupling portion 141 may include the magnet 142b, and the base portion 142 may include the steel plate 141b.

[0039] In the embodiment, the dryer 200 is used as the blower device, but the present invention is not limited to this. For example, a portable electric fan or the like may be used as the blower device.

[0040] Second embodiment The second embodiment of the present invention will be described below. In the drawings and descriptions of each embodiment below, the same or equivalent components and members as those in the first embodiment are denoted by the same reference numerals. Descriptions that overlap with the first embodiment will be omitted as appropriate, and the description will focus on the configurations that differ from the first embodiment.

[0041] Fig. 7 is a perspective view showing a state in which the housing 110 and the coupling mechanism 120 are coupled in the light-emitting unit 100 of the second embodiment. Fig. 8 is a perspective view showing a state in which the housing 110 and the coupling mechanism 120 are separated in the light-emitting unit 100 of the second embodiment. Fig. 9(a) is a YZ cross-sectional view showing a state in which the housing 110 and the coupling mechanism 120 are separated in the light-emitting unit 100 of the second embodiment. Fig. 9(b) is a YZ cross-sectional view showing a state in which the housing 110 and the coupling mechanism 120 are coupled in the light-emitting unit 100 of the second embodiment.

[0042] Band 131 in the second embodiment is made of an elastic material that can be pushed open by hand, such as silicon, elastomer, or rubber. One end of band 131 of fastening member 130 is provided with hook 136. Band 131 is wrapped around any location of dryer 200, and hook 136 is hooked into insertion hole 132 provided on the other end, thereby fixing light-emitting unit 100 to dryer 200.

[0043] The coupling portion 141 and the convex portion 142a of the base portion 142 in the second embodiment are formed in a semi-cylindrical shape with the Y direction as the central axis. The concave portion 141a of the coupling portion 141 extends in the X direction at the center in the Y direction. When the semi-cylindrical convex portion 142a is inserted into the concave portion 141a, as shown in Figs. 9(a) and 9(b), the shaft portion 142c protruding on both sides in the Y direction provided on the convex portion 142a fits into the bearing portion 141c recessed on both sides in the Y direction provided on the concave portion 141a. This allows the housing 110 to be coupled to the coupling mechanism 120 so as to be rotatable in the tilt direction. Furthermore, in this coupled state, the magnet 142b magnetically attracts the steel plate 141b, thereby maintaining this coupled state.

[0044] In order to facilitate rotation of housing 110 in the tilt direction relative to coupling mechanism 120 when housing 110 and coupling mechanism 120 are coupled, coupling portion 141 and protrusion 142a of base portion 142 are semi-cylindrical, but may be of any shape.

[0045] Third embodiment A third embodiment of the present invention will now be described. Fig. 10 is a perspective view showing a state in which the housing 110 and the coupling mechanism 120 are coupled in the light-emitting unit 100 of the third embodiment. Fig. 11 is a perspective view showing a state in which the housing 110 and the coupling mechanism 120 are separated in the light-emitting unit 100 of the third embodiment.

[0046] In the third embodiment, the housing 110 is formed in an ellipsoidal spherical shape (egg shape). In the third embodiment, the coupling portion 141 has a spherical convex portion 142a, and the base portion 142 has a spherical concave portion 141a.

[0047] In the third embodiment, the band 131 of the fastening member 130 is formed of an elastic material such as silicon, elastomer, or rubber that can be pushed open by hand, and the tip 131a is split for pushing open. The diameter of the band 131 is made smaller than the assumed tip diameter of the dryer 200, but the optimal value depends on the flexibility and strength of the band 131, and may be determined by experiment. A plurality of spacers 134 (e.g., three at an angle of 120 degrees) made of a flexible material such as silicon may be provided to fasten the dryer 200. In this embodiment, the material and inner diameter of the band 131 and the material and height of the spacer 134 may be optimally determined by experiment. In the third embodiment, the band 131 is pushed open, and the tip 201 of the dryer 200, for example, is placed in the pushed-open portion, and then the pushing open is stopped, whereby the dryer 200 is fastened by the band 131.

[0048] (Fourth embodiment) A fourth embodiment of the present invention will be described below. Fig. 12 is a perspective view showing a state in which the housing 110 and the coupling mechanism 120 are coupled in the light-emitting unit 100 of the fourth embodiment. Fig. 13 is a perspective view showing a state in which the housing 110 and the coupling mechanism 120 are separated in the light-emitting unit 100 of the fourth embodiment. Fig. 14 is a side cross-sectional view of the light-emitting unit 100 of the fourth embodiment.

[0049] In the fourth embodiment, the housing 110 is formed in a semicircular shape when viewed in the Y direction (see FIG. 14). The joint 141 of the housing 110 is formed by the entire bottom of the housing 110, and the entire bottom surface of the joint 141 forms a convex portion 142a. The base portion 142 has a spherical concave portion 141a.

[0050] In the fourth embodiment, band 131 of fastening member 130 has annular portions 135 arranged side by side on one side and the other side in the X direction. The diameter of annular portion 135 of band 131 is made smaller than the assumed diameter of the tip of dryer 200, but the optimum value depends on the flexibility and strength of band 131 and can be determined by experiment. In the fourth embodiment, for example, tip portion 201 of dryer 200 is inserted into two annular portions 135, whereby dryer 200 is fastened by band 131.

[0051] 14, the housing 110 is coupled to the coupling mechanism 120 by placing the protruding portion 142a of the housing 110 on the recessed portion 141a of the coupling portion 141. Since the protruding portion 142a is formed in a semicircular shape when viewed in the Y direction, the housing 110 is rotatable in the tilt direction (XZ direction).

[0052] Fifth embodiment A fifth embodiment of the present invention will be described below. Fig. 15 is a perspective view showing a state in which the housing 110 and the coupling mechanism 120 are coupled in the light-emitting unit 100 of the fifth embodiment. Fig. 16 is a perspective view showing a state in which the housing 110 and the coupling mechanism 120 are separated in the light-emitting unit 100 of the fifth embodiment. Figs. 17(a) to 17(c) are XZ cross-sectional views showing how the housing 110 and the coupling mechanism 120 are coupled in the light-emitting unit 100 of the fifth embodiment.

[0053] The coupling mechanism 120 of the fifth embodiment has a hinge 143 attached to the housing 110 and the dryer 200. Specifically, the orientation adjustment mechanism 140 of the fifth embodiment includes the hinge 143 and a base portion 142 on which the hinge 143 is placed. The hinge 143 has a hinge shaft portion 143a attached to the hinge attachment portion 116 provided on the housing 110, and a flat plate portion 143b. The base portion 142 of the fifth embodiment does not have the above-mentioned convex portion 142a etc., and has a flat plate insertion portion 142d into which the flat plate portion 143b of the hinge 143 can be inserted.

[0054] 17(a) to 17(c) are referred to. The flat plate portion 143b of the hinge 143 is inserted into the flat plate insertion portion 142d, whereby the hinge 143 is fixed to the dryer 200 via the flat plate insertion portion 142d. In a state in which the flat plate portion 143b is inserted into the flat plate insertion portion 142d, the housing 110 is rotatable in the XZ directions around the hinge shaft portion 143a, and this allows the direction of light of the light-emitting unit 100 to be adjusted. Note that, for the sake of simplification, an example in which the base portion 142 and the flat plate insertion portion 142d are separated is shown in FIG. 17(a) to FIG. 17(c), but the base portion 142 and the flat plate insertion portion 142d may be integrally configured.

[0055] Fig. 18 is a perspective view of a modified example of the fifth embodiment. For simplification, the fastening member 130 is omitted in Fig. 18. In the examples of Figs. 15 to 17, the housing 110 and the hinge mounting portion 116 are integrally configured, but the housing 110 and the hinge mounting portion 116 may be configured separately. In this case, for example, the housing 110 and the hinge mounting portion 116 are configured to be detachable by magnetism. Also, the bottom of the hinge 143 and the base portion 142 may be configured to be detachable by magnetism, for example, without having the flat plate portion 143b and the flat plate insertion portion 142d. [Explanation of symbols]

[0056] 100 light emitting unit, 110 housing, 111 lens, 112 light emitting element, 113 secondary battery, 114 switch, 115 connector, 116 hinge mounting portion, 120 coupling mechanism, 130 fastening member, 131 band, 132 insertion hole, 133 protrusion, 140 orientation adjustment mechanism, 141 coupling portion, 142 base portion, 143 hinge, 200 dryer.

Claims

1. A housing incorporating a light emitting element that emits light for hair growth; a mechanism for connecting the housing and a blower; Equipped with The coupling mechanism comprises: a mechanism for fixing the housing to the blower; a mechanism for adjusting an irradiation position of the light of the light emitting element on a scalp while the housing is fixed to the blower by the fixing mechanism; Equipped with the fixing mechanism is configured to fix the housing to the air blower in a direction in which light from the light-emitting element is directed forward of the air blower; The light-emitting unit is characterized in that the adjusting mechanism is configured to adjust the direction of light of the light-emitting element only in a tilt direction.

2. 2. The light emitting unit according to claim 1, The adjusting mechanism includes: a coupling portion provided on the housing, the coupling portion having a semi-cylindrical protrusion having a central axis in a horizontal direction perpendicular to the concave portion and the optical axis of the light emitting element; a base portion on which the coupling portion is placed and having one of the recessed portion and the protruding portion that fits into the other of the recessed portion and the protruding portion, The housing is coupled to the coupling mechanism so as to be rotatable in a tilt direction with the recess and the protrusion fitted together.

3. 2. The light emitting unit according to claim 1, The housing is formed in a semicircular shape when viewed in a horizontal direction perpendicular to an optical axis of the light emitting element, The adjusting mechanism includes: a coupling portion provided on the housing, the coupling portion having a protruding portion on the entire bottom surface of the housing; a base portion on which the coupling portion is placed and which has a spherical recess; The housing is coupled to the coupling mechanism so as to be rotatable in a tilt direction with the recess and the protrusion fitted together.

4. 4. The light-emitting unit according to claim 2, one of the coupling portion and the base portion includes one of a magnet and a ferromagnetic member, the other of the coupling portion and the base portion includes the other of the magnet and the ferromagnetic member, A light emitting unit, wherein the connection between the housing and the connecting mechanism is maintained by the magnet attracting the ferromagnetic member with the recess and protrusion fitted together.

5. 2. The light emitting unit according to claim 1, The coupling mechanism includes a hinge. The hinge is attached to the housing and the blower device, The housing is rotatable about the axis of the hinge.

6. 6. The light-emitting unit according to claim 1, The housing contains a secondary battery, The housing and the coupling mechanism are removably coupled to the light emitting unit.

7. 7. The light emitting unit according to claim 1, wherein the fixing mechanism is a fastening member that fastens a part of the air blowing device to fix the housing.

8. 8. The light-emitting unit according to claim 7, wherein the fixing mechanism comprises a band for wrapping around a portion of the air blower and tightening it, and a fixing portion for fixing the band in a tightened state by wrapping it around a portion of the air blower.

9. 8. The light-emitting unit according to claim 7, wherein the fixing mechanism comprises a band made of a pushable elastic material and spacers provided on both ends of the band; In the light emitting unit, after a part of the air blower is disposed in the part where the band is pushed open while the band is pushed open, the air blower is tightened by the band by stopping the pushing open.

10. 8. The light-emitting unit according to claim 7, wherein the fixing mechanism includes a band having two annular portions arranged side by side on one side and the other side of the air blowing direction of the air blowing device when the housing is fixed to the air blowing device by the fixing mechanism, The light-emitting unit, wherein the blower is fastened by the band by inserting a part of the blower into the two annular portions.

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