KR101838231B1 - Teeth whitening apparatus using optical fiber - Google Patents

Abstract

The present invention relates to a tooth whitening machine, and more particularly, to a tooth whitening machine which is capable of increasing tooth whitening effect by allowing a light source to be placed outside a user's mouth and transmitting it to a mouthpiece through an optical fiber, The present invention relates to a tooth whitening machine which is capable of performing tooth whitening in a comfortable posture regardless of time and place as a portable type.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tooth whitening apparatus using optical fibers,

The present invention relates to a tooth whitening machine, and more particularly, to a tooth whitening machine which is capable of increasing tooth whitening effect by allowing a light source to be placed outside a user's mouth and transmitting it to a mouthpiece through an optical fiber, The present invention relates to a tooth whitening machine which is capable of performing tooth whitening in a comfortable posture regardless of time and place as a portable type.

As the quality of life improves, the tendency to pursue health and beauty at the same time is becoming stronger. As an example of this, the desire to have healthy teeth is increasing.

Most teeth are discolored to some extent due to birth, eating habits, and smoking effects, unless they have special care since childhood.

The tooth whitening is called tooth whitening, and tooth whitening is performed when tooth brushing is performed by using a toothpaste containing a tooth whitening agent.

However, the tooth whitening method using such dentifrice has a problem that the content of the whitening agent contained in the dentifrice is so low that it is not possible to effectively remove the dentifrice deposited on the tooth surface.

Recently, a professional technique using a laser for effective whitening treatment has been developed. However, the teeth whitening method using such a laser is excellent in whitening effect, but it is troublesome to receive outpatient treatment periodically for a long period of time, .

In recent years, a technique has been developed in which a whitening pad is easily attached to a tooth and a user can perform tooth whitening by himself or herself at a low cost.

This whitening pad is a pad to which a whitening agent based on a low concentration of carboxy or peroxide is applied, and is excellent in whitening effect since it can be used for a long time after it is stuck on a tooth.

However, since the whitening pad is adhered to the tooth as a water-soluble adhesive component, there is a problem in that it causes dislocation in the oral cavity by stimulating the tongue or oral mucosa by being moved away from the original attachment position due to movement of muscles around the mouth during long-

To solve these problems, recently, a luminescent tooth whitening machine has been developed. In this luminescent tooth whitening machine, a whitening agent containing a photoactive agent is applied to a tooth, and light for activation is irradiated thereon to be whitened by a photoactive agent I will.

1 shows a conventional light emitting type tooth whitening machine. Referring to FIG. 1, a conventional light emitting type tooth whitening machine 10 (Korean Patent Registration No. 10-1611987) includes a mouthpiece A plurality of light sources 12 attached to the mouthpiece 11 and a power cable 13 for supplying power to the light sources 12.

The conventional light emitting type tooth whitening machine 10 has an advantage that a user can perform teeth whitening while easily holding the mouthpiece 11 with the teeth without opening the mouth for a long time for light irradiation.

However, in the conventional light emitting type tooth whitening machine 10, since the light sources 12 are attached to the mouthpiece 11, it is difficult to use for a long period of time due to heat generation, and thus the tooth whitening effect is deteriorated.

In order to solve such a problem, US Patent Laid-Open Publication No. 2015-0164618 discloses a laser orthodontic device in which an optical fiber is embedded in a mouthpiece and a light source is supplied from the outside to perform dental correction .

In the conventional laser dental orthodontic appliance, there is a merit that the light source is located outside the mouthpiece, thereby reducing heat generation in the oral cavity. However, since the optical fiber is embedded directly in the mouthpiece, there is a limit in reducing heat generation, there is still a disadvantage that the user can not use the device for a long time due to the weight of the optical device.

FIG. 2 shows another example of a conventional laser dental proofing apparatus. The conventional laser dental proofing apparatus 20 comprises a bent light guiding tube 21 in which a connector 24 for inserting an optical device is formed.

The light guiding tube 21 has two legs 21a and 21b and microscopic reflecting particles 22 such as glass powder are provided in the legs 21a and 21b.

The connector 24 is provided with a beamsplitter 23 for splitting the input light into the legs 21a and 21b.

The beam splitter 23 splits the inputted light at a predetermined angle to output the branched lights 23a and 23b and the branched lights 23a and 23b are transmitted to the legs through the reflective particles 22. [

At this time, the branched lights 23a and 23b branched by the beam splitter 23 are not linearly diffused light but partially transmitted through the reflective particles 22 to the legs, (23aa, 23bb) (according to Brewster's law, if the turning radius is large, the branched beam does not move along the leg and goes straight ahead) It has a disadvantage that the effect of teeth whitening is low since the light is not reflected toward the teeth but is directed to the lip or the mucous membrane of the ball.

The light guide tube 21 of the conventional laser dental orthodontic apparatus is made of plastic such as PMMA (poly (methyl methacrylate)). The distance between the legs 21a and 21b is not variable, There are disadvantages that are difficult to use by other users.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-described problems, and it is an object of the present invention to provide a light generator, which is portable and connected to a mouthpiece through an optical fiber, And the tooth whitening effect can be increased.

Another object of the present invention is to provide a tooth whitening machine capable of maximizing the amount of light irradiated to a tooth by providing a light guide in a mouthpiece and diffusing a part of light and straightening a part thereof, thereby greatly increasing the tooth whitening effect.

Another object of the present invention is to provide a tooth whitening machine which can be commonly used by users having different sizes of arches.

In order to accomplish the above object, the present invention provides a mouthpiece comprising a transparent and flexible mouthpiece, A light guide body including a light guide body embedded in the mouthpiece in a shape of an arc and a tubular optical fiber insertion port protruding from the center of the outer periphery of the light guide body so as to insert one end of the optical fiber below; A light generator positioned outside the mouth of the user and spaced apart from the light guide to output light; And an optical fiber inserted into the optical fiber insertion port at one end and connected to the light generator at the other end and transmitting light output from the light generator to the light guide, The distance between both ends of the light guide main body can be flexibly changed by varying the width of the groove, light output from one end of the optical fiber is not branched, Wherein the light guide guides the diffused light and irradiates the light to the front of the tooth to cause an activation reaction with the whitening agent applied to the tooth to remove the coloring material on the tooth surface. do.

In a preferred embodiment, a diffusion lens for diffusing light output from one end of the optical fiber is provided in the optical fiber insertion port.

In a preferred embodiment, the diffusing lens has a cylindrical shape, one surface of which faces one end of the optical fiber, the other surface of which faces the light guide body, and the one surface has two angularly bent surfaces with respect to a vertical line passing through the center of the surface So that it is cut in the longitudinal direction.

In a preferred embodiment, the angle between two surfaces forming one surface of the diffusion lens is 80 degrees, the length between one surface and the other surface is 12 mm, the diameter of the other surface is 10 mm, and the light output from the other surface is diffused do.

In a preferred embodiment, a spherical lens convex toward the diffusion lens is further provided between the diffusing lens and the light guide, and the spherical lens converts part of light in the center of the light diffused by the diffusion lens into linear light And outputs it.

In a preferred embodiment, the light generator comprises: a portable case having an opening formed at one side thereof; A fiber adapter having one side inserted into the opening in the inside of the portable case in a cylindrical shape with both sides open and the other end of the optical fiber inserted and fixed to one side; A lens housing coupled to the other side of the fiber adapter and having a focusing lens therein; A heat sink mounted on the inside of the portable case and having an optical element attached to the center thereof and coupled to the other side of the lens housing such that the other edge of the lens housing surrounds the periphery of the optical element; A fastener for fastening the other side of the fiber adapter and one side of the lens housing to each other so that the optical axis of the focusing lens and the other end of the optical fiber are aligned with each other; A rechargeable battery provided inside the portable case and supplying power to the optical element; And a control board provided in the portable case and allowing a power source of the rechargeable battery to be supplied to the optical element, wherein the focusing lens is a lens convex on both sides toward the optical element and the optical fiber, A guide groove is formed in the lens housing so that a guide of the focusing lens can be inserted and fixed.

In a preferred embodiment, the optical device is a light emitting diode (LED) or a laser diode (LD), and outputs light having a wavelength of 450 nm.

In a preferred embodiment, the other end of the optical fiber is branched into two, and the optical generator includes: a portable case having an opening through which the other end of the optical fiber can be inserted; A first fiber adapter disposed inside the portable case in a cylindrical shape with both sides thereof opened and having a first end of the optical fiber inserted and fixed; A first lens housing which is provided inside the portable case in a cylindrical shape with both sides thereof open, one side of which is coupled to the other side of the first fiber adapter and a first focusing lens is provided therein; A first fastener for fastening one side of the first lens housing to the other side of the first fiber adapter so that the optical axis of the first focusing lens and the first other end of the optical fiber are aligned with each other; A second fiber adapter provided inside the portable case in a cylindrical shape with both sides opened and having a second end of the optical fiber inserted and fixed; A second lens housing provided inside the portable case in a cylindrical shape with both sides opened, one side of which is coupled to the other side of the second fiber adapter, and a second focusing lens is provided inside; A second fastener for fastening one end of the second lens housing to the other end of the second fiber adapter so that the optical axis of the second focusing lens and the second end of the optical fiber are aligned with each other; A first optical element and a second optical element which are erected inside the portable case and spaced from each other at a center are attached and the other edge of the first lens housing surrounds the periphery of the first optical element, A heat sink coupled to the other side of the second lens housing such that the other edge of the second lens housing surrounds the periphery of the second optical element; A rechargeable battery provided inside the portable case and supplying power to the optical elements; And a control board provided in the portable case and allowing a power source of the rechargeable battery to be supplied to the optical elements, wherein the focusing lenses are convex lenses on both sides, protruding guides are provided on the side surfaces, Guide grooves are formed in the housings so that guides of the focusing lenses can be inserted and fixed by interference fit.

In a preferred embodiment, the optical elements are a light emitting diode (LED) or a laser diode (LD), the first optical element outputs light having a wavelength of 450 nm, and the second optical element outputs light having a wavelength of 660 nm .

The present invention has the following excellent effects.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a tooth whitening device and a toothbrush device, Since the light generator and the optical fiber are both located outside the user's mouth, no heat is generated in the oral cavity, so that the user can use the device for a long time, thereby increasing the whitening effect. .

In addition, according to the tooth whitening machine of the embodiment of the present invention, since the inner diameter of the light guide can be flexibly changed, it is advantageous that users of different sizes of arches can use it publicly.

In addition, according to the tooth whitening machine of the embodiment of the present invention, the light is guided through the light guide provided in the mouthpiece, rather than diverging and providing light, so that light can be irradiated to the entire teeth, It has an advantage that the whitening effect can be maximized by irradiating light.

In addition, according to the tooth whitening machine of the embodiment of the present invention, by simply fastening the fiber adapter and the lens housing to the inside of the light generator by the fastening tool, the optical axis of the focusing lens inside the lens housing and the end of the optical fiber inserted into the fiber adapter There is an advantage that the optical axes can be made to coincide with each other.

According to the tooth whitening machine of the embodiment of the present invention, since the guide of the focusing lens and the guide groove of the lens housing are tightly engaged with each other, the focusing lens can be prevented from being detached, Since the upper surface of the fastener can be contacted and fixed, it is advantageous that the components inside the portable case can be fixed without moving even by assembling the control board alone.

In addition, according to another embodiment of the present invention, tooth whitening, intraoral oral menstrual treatment and oral germ removal can be simultaneously performed by irradiating light of different wavelengths into the oral cavity.

1 is a view showing a conventional light emitting type tooth whitening machine,
2 is a view showing another example of a conventional laser dental proofing apparatus,
FIG. 3 is a photograph of a tooth whitener according to an embodiment of the present invention,
4 is a view for explaining a tooth whitener according to an embodiment of the present invention;
5 is a view for explaining a mouthpiece and a light guide of a tooth whitener according to an embodiment of the present invention,
FIG. 6 is a detailed view of a light guide of a tooth whitener according to an embodiment of the present invention, FIG.
7 is a perspective view of a light guide of a tooth whitener according to an embodiment of the present invention,
8 is an exploded view of a light generator of a tooth whitener according to an embodiment of the present invention,
9 is a view showing the inside of a light generator of a tooth whitener according to an embodiment of the present invention,
10 is a view showing a tooth whitener according to another embodiment of the present invention.

Although the terms used in the present invention have been selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, the meaning described or used in the detailed description part of the invention The meaning must be grasped.

Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

3 and 4, a tooth whitening machine 100 according to an embodiment of the present invention includes a toothbrush 100 for applying a whitening agent to teeth, Of teeth whitening machine.

In addition, the tooth whitener 100 according to an embodiment of the present invention includes a mouthpiece 110, which can be held by a user in the oral cavity, a portable type such that the user can hold it by hand, put it in a pocket, And a light source 130 connected to the light generator 130 and the mouthpiece 110. The light generator 130 generates light and outputs the light to the mouthpiece 110, And an optical fiber 140 for transmitting the optical signal to the optical fiber.

In the tooth whitener 100 according to an embodiment of the present invention, only the mouthpiece 110 is located inside the user's mouth, and the light generator 130 and the optical fiber 140 are located outside the oral cavity.

That is, the heat generated in the oral cavity can be minimized as compared with a conventional laser dental orthodontic apparatus in which an optical fiber is buried in a mouthpiece.

The tooth whitener 100 according to an embodiment of the present invention may be constructed such that the mouthpiece 110 and the light generator 130 are not connected directly but are connected to each other through the optical fiber 140, So that the user can use the dental mouthpiece 110 for a long time without burdening the light generator 130.

In addition, the mouthpiece 110 can be inserted into a user's mouth to be filled with teeth, and has a substantially arc-like shape and is made to be water-borne using the entire teeth.

In addition, the mouthpiece 100 is preferably made of a transparent resin material and made of a flexible material that is harmless to the human body such as silicone.

Referring to FIG. 5, a light guide 120 is provided in the mouthpiece 100 to diffuse and straighten the light transmitted from the optical fiber 140 to irradiate light to the entire teeth.

6 and 7, the light guide 120 includes a light guide body 121 embedded in the mouthpiece 100 in a arc shape, And a tubular optical fiber insertion port 122 protruded to insert one end of the optical fiber 140 into the optical fiber insertion port 122.

In addition, the light guide 120 may be made of polycarbonate (PC).

Also, the light guide body 121 functions as an optical transmission medium.

In addition, grooves (a, b) are formed on the outer circumference of the light guide body 121 and open to the outside in the longitudinal direction on both sides of the optical fiber insertion port 122.

When the distance d between both ends of the light guide body 121 is varied, the widths c of the grooves a and b are varied to provide a spring action, The inner diameter of the light guide body 121 can be flexibly changed without breaking.

This has the advantage of allowing users of different arch sizes to use it together.

In addition, the mouthpiece 100 and the light guide 120 can be separated from each other and can be sanitarily used by other users after cleaning.

A diffusion lens 123 for diffusing light output from one end of the optical fiber 140 is provided in the optical fiber insertion port 122.

The diffusing lens 123 has a cylindrical shape and one surface 123b faces the optical fiber 140 and the other surface 123a faces the light guide body 121 and the one surface 123b faces the optical surface 120b of the one surface 123b (123bb, 123ba) bent at a certain angle (? 2) about the vertical line (e) passing through the center.

The two surfaces 123bb and 123ba diffuse the light input to the vertical line e at a predetermined light diffusion angle? 1 and output the light.

The light diffusing angle? 1 is preferably 120 degrees. For this purpose, the angle? 2 of two surfaces 123bb and 123ba forming one surface 123b of the diffusing lens 123 is 80 degrees, The length l1 between the one side vertical line e and the other side 123a of the lens 123 was 12 mm and the diameter l2 of the other side 123a was 10 mm.

That is, the diffusion lens 123 diffuses input light into a predetermined range rather than dividing the input light into two light paths, thereby effectively irradiating light to all the teeth including the front teeth, thereby enhancing the whitening effect.

However, since the conventional laser dental orthodontic appliance does not diffuse input light but uses a beam splitter to split it, light is not effectively irradiated to the front part, and most of the light goes straight toward the oral mucous membrane in the oral cavity. There is a low problem.

In order to achieve the above object, the present invention is characterized in that a spherical lens 124 is further provided at the rear of the diffusion lens 123, The light output from the central portion of the light diffused by the light source 123 is changed into a linear light so that a large amount of light is intensively irradiated to the teeth located forward.

In addition, the spherical lens 124 has a hemispherical shape, and a convex surface faces the diffusion lens 123.

Therefore, the light guide 120 of the present invention is advantageous in that the effect of whitening can be greatly enhanced by concentrating the light on the front teeth while irradiating light uniformly throughout the teeth.

One end of the optical fiber 140 is inserted into the optical fiber insertion port 122 of the light guide 120 and the other end is connected to the light generator 130. The light output from the light generator 130 is converted into the light To the guide body 121.

In addition, the optical fiber 140 is located outside the oral cavity.

That is, in the tooth whitener 100 according to an embodiment of the present invention, since both the light generator 130 and the optical fiber 140, which cause heat generation, are located outside the oral cavity, the user can use the device for a long time, There is an advantage that it can be increased.

Referring to FIGS. 8 and 9, the light generator 130 generates and outputs light from outside the user's mouth.

The light generator 130 includes a portable case 131, a fiber adapter 132, a lens housing 133, a heat sink 136, a fastener 134, a rechargeable battery 138, and a control board 139 .

The portable case 131 has an accommodation space for accommodating other components therein and has an opening through which the fiber adapter 132 can be inserted.

One side of the fiber adapter 132 inside the portable case 131 is inserted into the opening and fixed.

The other end of the optical fiber 140 is inserted into the inner space of the fiber adapter 132.

That is, the fiber adapter 132 is a module for connecting the optical fiber 140.

The lens housing 133 is connected to the other side of the fiber adapter 132 by being in contact with the other side of the lens housing 133 and has a focusing lens 135 therein.

The focusing lens 135 focuses the light of the optical element 137 to be described below and irradiates light to the other end of the optical fiber 140 inserted into the fiber adapter 132.

In addition, the focusing lens 135 is a convex lens on both sides, and the guide 135a protruding from the side is provided.

A guide groove 133a is formed in the lens housing 133 so that the guide 135a of the focusing lens 135 can be inserted and fixed.

That is, the focusing lens 135 is simply guided and fixed to the lens housing 133, and is not released to the outside of the lens housing 133 after assembly.

The coupling member 134 fixes one side of the lens housing 13 and the other side of the fiber adapter 132 and connects the optical axis of the focusing lens 135 and the other end of the optical fiber 140 coincident with each other So that the optical axis is aligned.

In addition, the fastener 134 has a shape of '∩' shape when viewed from the side, and one side of the lens housing 13 and the other side of the fiber adapter 132 are inserted and fixed in a groove formed at the center .

That is, one side of the lens housing 13 and the other side of the fiber adapter 132 are fastened to the fastener 134, so that the optical axis is automatically aligned, and no separate optical axis aligning operation is required, .

The heat dissipation plate 136 is installed inside the portable case, and an optical element 137 is attached to the center of the heat dissipation plate 136.

In addition, the other edge of the lens housing 133 surrounds the optical element 137 and couples the optical element 137 to the heat sink 136.

That is, all the light emitted from the optical element 137 is input into the lens housing 133, and the focusing lens 135 focuses the light emitted from the optical element 137, And outputs it to the other end.

Accordingly, since the light emitted from the optical element 137 can be all focused and transmitted to the optical fiber 140, the optical output efficiency can be enhanced and the heat generated from the optical element 137 can be effectively discharged, Heat damage to the lens housing 133 and the lens 135 can be prevented.

The optical element 137 is provided as a light emitting diode (LED) or a laser diode (LD), and outputs light having a wavelength of 450 nm, which activates the whitening agent applied to teeth to enable active oxygen to be generated.

The rechargeable battery 138 is provided inside the portable case 131 and supplies power to the optical device 137.

Also, the rechargeable battery 138 can be charged with a USB cable.

The control board 139 allows the power of the rechargeable battery 138 to be supplied to the optical device 137 and to set whether the optical device 137 is on or off or on time.

The control board 139 is in the form of a plate and contacts the upper edge of the heat sink 136 and the upper surface of the fastener 134 and covers the inner surface of the portable case 131, 136 and the fastener 136 are fixed.

That is, the heat sink 136, the lens housing 133, and the fiber adapter 132 can be simply fixed by assembling the control board 139 without a separate fixing device.

FIG. 10 shows a tooth whitener 200 according to another embodiment of the present invention. The tooth whitener 200 according to another embodiment of the present invention includes a tooth whitener 100 according to an embodiment of the present invention, The configuration of the mouthpiece 110 and the light guide 120 are substantially the same and the configuration of the light generator 210 is different.

The other end of the optical fiber 141 is branched into two end portions 141a and 141b.

The light generator 210 includes a portable case 131, a heat sink 136 that is installed in the portable case, a first optical device 137 that is spaced apart from the heat sink 136, A first focusing lens 135 which surrounds the edge of the first optical element 137 and is attached to the heat sink 136 and concentrates the light of the first optical element 137 and outputs the condensed light; A first lens adapter 137 coupled to the first lens housing 137 and having a first end 141a of the optical fiber 141 inserted and fixed therein, A first fastening member 135 which fastens the housing 137 and the first fiber adapter 132 to each other and coaxially aligns the optical axis of the first focusing lens 135 and the first end 141a of the optical fiber 141, And a sphere 133.

The light generator 210 may include a second focusing lens 205 that surrounds the edge of the second optical element 205 and is attached to the heat sink 136 and condenses light of the second optical element 205 therein, A second lens housing 202 coupled to the second lens housing 202 and having a second end 141b of the optical fiber 141 inserted and fixed therein, The second lens housing 202 and the second fiber adapter 201 are coupled to each other so that the optical axis of the second focusing lens 204 and the second end 141b of the optical fiber 141 are collinear And a second fastener (203) that coincides with the first fastener (203).

That is, the tooth whitener 200 according to another embodiment of the present invention transmits light output from the two optical devices 137 and 205 to the optical fiber 141, so that two lights in the optical guide 120 Output.

The first optical device 137 and the second optical device 205 may be light emitting diodes or laser diodes, respectively, and the light output from the first optical device 137 is light having a wavelength of 450 nm. The light output from the second optical element 205 is light having a wavelength of 660 nm.

In addition, the light of 660 nm wavelength band is known to perform the function of removing the oral bacteria and treating the menstrual blood.

That is, the tooth whitening machine 200 according to another embodiment of the present invention has an advantage of simultaneously performing tooth whitening and oral disease treatment.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Various changes and modifications will be possible.

100, 200: Teeth whitener 110: mouthpiece
120: light guide 121: light guide body
122: light guide inserting port 130: light emitting element
131: Portable case 132: Optical fiber adapter
133: Lens housing 134:
135: focusing lens 136: heat sink
137: Optical element 138: Rechargeable battery
139: Control board

Claims (9)

A transparent and flexible mouthpiece to which a user can ride with a tooth;
A light guide body including a light guide body embedded in the mouthpiece in a shape of an arc and a tubular optical fiber insertion port protruding from the center of the outer periphery of the light guide body so as to insert one end of the optical fiber below;
A light generator positioned outside the mouth of the user and spaced apart from the light guide to output light; And
And an optical fiber inserted into the optical fiber insertion port at one end and connected to the light generator at the other end and transmitting light output from the light generator to the light guide,
Grooves are formed on both sides of the optical fiber insertion port on the outer circumference of the light guide body and the distance between both ends of the light guide body can be flexibly changed by varying the width of the groove,
The light emitted from one end of the optical fiber is not diverged but is diffused in a predetermined angle range. The light guide guides the diffused light to the front surface of the tooth to cause an activation reaction with the whitening agent applied to the tooth, Thereby removing the coloring material.
The method according to claim 1,
And a diffusion lens for diffusing light output from one end of the optical fiber is provided in the optical fiber insertion port.
3. The method of claim 2,
Wherein the diffusing lens has a cylindrical shape and one surface is directed to one end of the optical fiber and the other surface is directed to the light guide body,
Wherein the one surface is cut in a longitudinal direction so as to be two angled surfaces bent at a predetermined angle with respect to a vertical line passing through the center of the one surface.
The method of claim 3,
Wherein an angle between two surfaces forming one surface of the diffusing lens is 80 degrees, a length between one surface and the other surface is 12 mm, a diameter of the other surface is 10 mm, and light output from the other surface is diffused in a range of 120 degrees. Tooth whitening machine.
5. The method of claim 4,
And a spherical lens convex toward the diffusing lens is further provided between the diffusing lens and the light guide, and the spherical lens converts part of light at the center among the light diffused by the diffusing lens into linear light and outputs the light Tooth whitening machine.
6. The method of claim 5,
The light generator includes:
A portable case having an opening formed at one side thereof;
A fiber adapter having one side inserted into the opening in the inside of the portable case in a cylindrical shape with both sides open and the other end of the optical fiber inserted and fixed to one side;
A lens housing coupled to the other side of the fiber adapter and having a focusing lens therein;
A heat sink mounted on the inside of the portable case and having an optical element attached to the center thereof and coupled to the other side of the lens housing such that the other edge of the lens housing surrounds the periphery of the optical element;
A fastener for fastening the other side of the fiber adapter and one side of the lens housing to each other so that the optical axis of the focusing lens and the other end of the optical fiber are aligned with each other;
A rechargeable battery provided inside the portable case and supplying power to the optical element; And
And a control board provided in the portable case, the power source of the rechargeable battery being supplied to the optical element,
Wherein the focusing lens is a lens convex on both sides toward the optical element and the optical fiber, a protruding guide is provided on a side surface,
Wherein a guide groove is formed in the lens housing so that a guide of the focusing lens can be inserted and fixed by interference fit.
The method according to claim 6,
Wherein the optical element is a light emitting diode (LED) or a laser diode (LD), and outputs light having a wavelength of 450 nm.
6. The method of claim 5,
The other end of the optical fiber branches into two,
The light generator includes:
A portable case having an opening through which the other end of the optical fiber can be inserted;
A first fiber adapter disposed inside the portable case in a cylindrical shape with both sides thereof opened and having a first end of the optical fiber inserted and fixed;
A first lens housing which is provided inside the portable case in a cylindrical shape with both sides thereof opened, one side of which is coupled to the other side of the first fiber adapter and a first focusing lens is provided therein;
A first fastener for fastening one side of the first lens housing to the other side of the first fiber adapter so that the optical axis of the first focusing lens and the first other end of the optical fiber are aligned with each other;
A second fiber adapter provided inside the portable case in a cylindrical shape with both sides opened and having a second end of the optical fiber inserted and fixed;
A second lens housing provided inside the portable case in a cylindrical shape with both sides opened, one side of which is coupled to the other side of the second fiber adapter, and a second focusing lens is provided inside;
A second fastener for fastening one end of the second lens housing to the other end of the second fiber adapter so that the optical axis of the second focusing lens and the second end of the optical fiber are aligned with each other;
A first optical element and a second optical element which are erected inside the portable case and spaced from each other at a center are attached and the other edge of the first lens housing surrounds the periphery of the first optical element, A heat sink coupled to the other side of the second lens housing such that the other edge of the second lens housing surrounds the periphery of the second optical element;
A rechargeable battery provided inside the portable case and supplying power to the optical elements; And
And a control board provided inside the portable case, the power source of the rechargeable battery being supplied to the optical elements,
Wherein the focusing lens is a convex lens on both sides and a protruded guide is provided on a side surface of the lens housing, and guide grooves are formed in the lens housings so that the guide of the focusing lens can be inserted and fixed by interference fit. Whitening machine.
9. The method of claim 8,
Wherein the optical elements are light emitting diodes (LED) or laser diodes (LD), the first optical element outputs light having a wavelength of 450 nm, and the second optical element outputs light having a wavelength of 660 nm group.

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