KR20200002152A - Lens Module and Light Curing Apparatus for Dental Clinic Including Thereof - Google Patents

Abstract

The present invention relates to a lens module and a dental photopolymerization apparatus comprising the same. The dental photopolymerization apparatus comprises: a light source module emitting light of the predetermined wavelength; a battery module for supplying power to the light source module; and a lens module including a barrel and a plurality of lenses and adjusting a light irradiation area emitted by varying the distance among the lenses.

Description

Lens Module and Light Curing Apparatus Including The Same {Lens Module and Light Curing Apparatus for Dental Clinic Including Thereof}

The present invention relates to a lens module and a dental photopolymerization apparatus including the same.

The contents described in this section merely provide background information on the present embodiment and do not constitute a prior art.

Conventional dental light polymerizer is composed of a high-power LED light source between 440 ~ 460nm and an optical fiber bundle for guiding uniformly irradiating the light emitted from it.

The energy output by the dental light polymerizer can theoretically be derived as follows.

Typically the proper curing energy to be investigated for an effective polymerization reaction corresponds to 10-16 J / cm ² . Referring to the equation, the output energy can be obtained by multiplying the light output and the irradiation time. Accordingly, the dental photopolymerizer can output light of appropriate curing energy by irradiating relatively low light for a long time or irradiating high light for a short time. In recent years, in order to shorten the medical treatment time and improve patient discomfort, most dental photopolymerizers have been developed to focus on increasing the light output.

Conventional dental photopolymerizers can improve resin polymerization degree to some extent by irradiating high power light. However, when the conventional dental photopolymerizer irradiates the light of excessively high output, there may be a problem that the resin is unevenly cured and the reliability of the resin is deteriorated due to the difference in internal and external shrinkage stresses. Furthermore, there is a problem that fever may occur and cause pain in a patient.

Accordingly, there is a demand for a dental photopolymerizer capable of appropriately adjusting the output in consideration of the condition of the patient, the degree of curing of the resin, and the like.

One embodiment of the present invention is to provide a dental photopolymerization apparatus that can be applied to a small size of the optical system while providing a high output light for curing without light loss.

One embodiment of the present invention, an object of the present invention is to provide a dental photopolymerization apparatus having a structure that can effectively remove the heat generation of the LED by high output.

One embodiment of the present invention, even if using a variety of resins, to provide a wide range of light, to provide a dental photopolymerization apparatus for curing the various types of resin effectively.

One embodiment of the present invention, an object of the present invention is to provide a lens module that can easily adjust the irradiation area of the light output from the dental photopolymerization apparatus and a dental photopolymerization apparatus including the same.

According to an aspect of the present invention, a light source module for emitting light of a predetermined wavelength, a battery module for supplying power to the light source module and a barrel and a plurality of lenses, the light irradiation area emitted by varying the distance between the lenses It provides a dental photopolymerization apparatus comprising a lens module for adjusting the.

According to an aspect of the invention, the light source module is characterized in that it comprises a light source for emitting a predetermined light and a package for minimizing the exit of the light emitted by the light source to the outside.

According to one aspect of the invention, the lens module is characterized in that it comprises a first lens disposed proximal to the light source module and a second lens disposed distal to the light source module.

According to one aspect of the invention, the lens module is characterized in that it comprises a lens fixing part for fixing the first lens.

According to an aspect of the invention, the lens module is characterized in that it comprises the first lens and the second lens inside the barrel.

According to an aspect of the invention, the first lens and the second lens is characterized in that the support is fixed inside the barrel.

According to an aspect of the present invention, in the lens module for controlling the area of the light emitted from the light source module to cure the resin (Resin), a plurality of lenses and lenses varying the focal length of the light emitted from the light source module It provides a lens module comprising a barrel for adjusting the irradiation area of the light emitted by varying the distance.

According to an aspect of the invention, the light source module is characterized in that it comprises a light source for emitting a predetermined light and a package for minimizing the exit of the light emitted by the light source to the outside.

According to an aspect of the invention, the plurality of lenses is characterized in that it comprises a first lens disposed in the vicinity of the light source module and a second lens disposed in the distal of the light source module.

According to one aspect of the invention, the lens module is characterized in that it further comprises a lens fixing part for fixing the first lens.

According to an aspect of the invention, the barrel is characterized in that it comprises the first lens and the second lens therein.

According to an aspect of the invention, the first lens and the second lens is characterized in that the support is fixed inside the barrel.

As described above, according to one aspect of the present invention, while providing a high output light for curing without light loss, there is an advantage that the small size of the optical system can be applied.

According to an aspect of the present invention, there is an advantage that can effectively remove the heat generated by the LED by the high output.

According to an aspect of the present invention, even when using various kinds of resin, there is an advantage that can be effectively cured various kinds of resin by providing light of a wide-band wavelength.

According to one aspect of the invention, there is an advantage that can easily adjust the irradiation area of the light output from the dental photopolymerization apparatus.

In addition, according to an aspect of the present invention, by simply adjusting the irradiation area of the light output from the dental photopolymerization apparatus to uniformly cure the resin, suppress the internal and external shrinkage of the resin, improve the long-term reliability of the resin There are advantages to it.

1 is a perspective view of a dental light polymerization apparatus according to an embodiment of the present invention.
2 is a cross-sectional view of a dental photopolymerization apparatus according to an embodiment of the present invention.
3 is a cross-sectional view of a light source module and a battery module according to an embodiment of the present invention.
4 is a diagram illustrating a configuration of a light source module according to a first embodiment of the present invention.
5 is a diagram illustrating a configuration of a light source module according to a second embodiment of the present invention.
6 is a graph showing the relationship between the intensity and the wavelength of the light emitted from the dental photopolymerization apparatus according to an embodiment of the present invention.
7 is a view showing the configuration of a light source module according to a third embodiment of the present invention.
8 is a diagram illustrating a configuration of a light source module according to a fourth embodiment of the present invention.
9 is a view showing a state that the resin is cured by a dental photopolymerization apparatus according to an embodiment of the present invention.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements.

Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. It is to be understood that the term "comprises" or "having" in the present application does not exclude in advance the possibility of the presence or addition of features, numbers, steps, operations, components, parts or combinations thereof described in the specification. .

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.

Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

In addition, each component, process, process, or method included in each embodiment of the present invention may be shared within a range that is not technically contradictory.

1 is a perspective view of a dental light polymerization apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a dental light polymerization apparatus 100 according to an embodiment of the present invention includes a battery module 110, a light source module 120, and a lens module 130.

The battery module 110 is connected to the light source module 120 to supply power to the light source module 120. The battery module 110 supplies power to the light source module 120, so that the light source module 120 can irradiate light for curing the resin.

The light source module 120 receives power from the battery module 110 and irradiates light. The light source module 120 does not irradiate light by receiving a separate optical fiber, but directly irradiates light by including a light source therein. As a result, a large amount of light loss caused by the optical fiber can be prevented, and the problem of including a plurality of optical fibers in order to irradiate light of a constant output can be solved. It can be miniaturized.

The lens module 130 is positioned at the front end of the light source module 120 to irradiate light, thereby adjusting the irradiation area of the irradiated light. The lens module 130 adjusts the irradiation area of the light irradiated by the light source module 120 by adjusting the distance between the lenses using a plurality of lenses. A detailed description thereof will be described with reference to FIG. 2.

2 is a cross-sectional view of a dental photopolymerization apparatus according to an embodiment of the present invention.

The lens module 130 includes a barrel 210, a first lens 220, a second lens 230, and a lens fixing part 240.

The barrel 210 includes an empty space therein and includes a first lens 220 and a second lens 230. The barrel 210 includes a support portion 215 protruding from the outermost portion of the barrel 210 to the inside to support the second lens 230 using the support portion 215. The support 215 is in contact with the second lens 230, thereby preventing the second lens 230 from escaping in the longitudinal direction or the vertical direction.

The barrel 210 adjusts the distance between the lenses 220 and 230 by varying the length. The barrel 210 may have a structure in which a portion of the barrel 210 is inserted into the lower portion of the other portion, or may vary in length in various ways such as being implemented with a stretchable material.

The first lens 220 is positioned at an end in the barrel 210 far from the battery module 110 to adjust the area of light emitted from the light source module. The first lens 220 contacts the barrel 210, particularly, the outermost portion of the barrel 210, whereby the position of the first lens 220 is fixed within the barrel 210. In addition, since the position of the first lens 220 is fixed in the barrel, as the length of the barrel 210 is changed, the distance between the lenses is also varied.

The second lens 230 focuses the light emitted from the light source module 120 to one focal point. The second lens 230 is prevented from being separated from the home position by the lens fixing part 240 and the support part 215 in the barrel 210.

As described above, as the barrel 210 varies in the longitudinal direction, the relative position of the first lens 220 with respect to the second lens 230 also varies. That is, since the distance between the lenses is different, the irradiation area of light irradiated to the outside of the dental photopolymerization apparatus 100 via the second lens 230 is different. When the first lens 220 and the second lens 230 are disposed apart by a predetermined distance, the light irradiated to the outside may be collected at one focal point. Accordingly, since the light output irradiated per unit area rises, the narrow area can be cured quickly. In contrast, as the barrel 210 moves, the first lens 220 and the second lens 230 are preliminary. When the distance is closer or farther than the set distance, the light irradiated to the outside does not converge to one focal point and is irradiated with a constant area. As a result, the light irradiation area is widened, so that a large area can be cured at once. The dental photopolymerization apparatus 100 can easily vary the light irradiation area by controlling the length of the barrel, and can irradiate light appropriately for the purpose of dental restoration treatment. When high power curing is required, the dental photopolymerization apparatus 100 irradiates light with a point light source, and when curing of a large area is required, the dental photopolymerization apparatus 100 may irradiate light with a surface light source, Significantly reduce dental treatment time and minimize patient discomfort. In addition, the dental photopolymerization apparatus 100 can control the light irradiation area appropriately to cure the resin uniformly, suppress internal and external shrinkage of the resin, and improve long-term reliability of the resin.

The lens fixing part 240 fixes the position of the second lens 230. The lens fixing part 240 is disposed at the rear of the second lens (the direction in which the light source module 120 is disposed) in the barrel to prevent the second lens 230 from being separated from the back position.

The light source module 120 includes a package 250 and a light source 260.

The package 250 is disposed around the light source 260 to minimize the light emitted by the light source 260 from escaping to the outside.

The light source 260 is connected to the battery module 110 and receives power from the battery module 110 to irradiate light for curing. Since the light source module 120 irradiates light using the light source 260 directly without a separate optical fiber, it is possible to minimize the light loss generated in the optical fiber. In addition, when the optical fiber is used, the higher the light output of the dental photopolymerization apparatus 100, the higher the probability of damage of the optical fiber, the lower the reliability of the dental photopolymerization apparatus 100, and the service life may be reduced. Existed. However, since the light source module 120 does not use a separate optical fiber, the above-described concern can be solved.

The dental photopolymerization apparatus 100 has the above-described configuration and can operate as shown in FIG. 9.

9 is a view showing a state that the resin is cured by a dental photopolymerization apparatus according to an embodiment of the present invention.

As shown in FIG. 9 (a), when the dental photopolymerization apparatus irradiates light with a large area, the output is relatively low, so that curing takes a relatively long time, but the resin can be uniformly cured overall. .

On the other hand, as shown in Figure 9 (b), when the dental photopolymerization apparatus is irradiated with light in a narrow area, the output is relatively high, it is possible to quickly cure the resin of the desired site.

3 is a cross-sectional view of a light source module and a battery module according to an embodiment of the present invention, Figure 4 is a view showing the configuration of a light source module according to a first embodiment of the present invention, Figure 5 is a second of the present invention A diagram illustrating a configuration of a light source module according to an embodiment.

The light source module 120 includes a coupling part 310 and a transparent cover part 320 in addition to the package 250 and the light source 260. The battery module 110 includes a power supply unit 360, a control unit (not shown), a display unit (not shown), and a charging unit (not shown).

The light source module 120 and the battery module 110 may be configured separately, or may be configured separately. In addition, the battery module 110 may be included in the light source module 120.

The light source 260 includes an LED chip part 410, a metal frame 420, and a transparent cover part 320, and the transparent cover part 320 serves to protect the light source 260.

The light source 260 is electrically and / or thermally coupled to one side of the coupling part 310, and the other side of the coupling part 310 is electrically and / or thermally coupled to the power supply part. Power of the light source 260 is supplied by the coupling part 310, and heat generated by the LED part is radiated by the coupling part 310.

The coupling part 310 includes a metal part 314 and an insulating part 318, and the metal part 314 is separated into a first metal part and a second metal part by an insulating part 318, and each metal part 314 may be coupled to the positive electrode and the negative electrode of the power supply unit.

The light source module 120 and the battery module 110 may have a structure in which they are separated and coupled as shown in FIG. 3. In this structure, the coupling part 310 may be formed in the light source module 120, and the through hole 350 corresponding to a portion of the coupling part 310 exposed may be formed in the battery module 110. The exposed coupling part 310 may be guided and coupled to the through hole 350, and the light source module 120 and the battery module 110 may be coupled to each other. In addition, the exposed part of the coupling part 310 may be covered by a case or the like outside.

As shown in FIG. 3, the coupling part 310 may be male, and the through hole 350 may be configured in the form of an embodiment, but this is contrary to that, the coupling part 310 is female and a battery module corresponding thereto. A coupling part (not shown) may be formed at 110.

The power supply unit 360 is preferably in the form of a handheld in operation of the photopolymerizer, and therefore preferably includes a battery. The battery module 110 may include various components such as a display, a controller, a switch, and the like, which are required for an operation not shown.

Referring to FIG. 4, the light source module 120 may include an LED chip unit 410, and the LED chip unit 410 may be located on an upper surface of the metal frame 420. In addition, the metal frame 420 may be electrically and / or thermally coupled to the coupling part 310. In addition, the metal frame 420 may be integrally formed with the coupling part 310.

The current supplied by the metal part 314 of the coupling part 310 is supplied to the metal frame 420, and for this purpose, the metal frame 420 includes the insulating part 520, thereby providing a current of the metal part 314. The poles can be divided so that they do not short.

In addition, the metal frame 420 and the metal part 314 may be configured to have an insulating pad, electrically coupled by means such as wire bonding, and thermally coupled using an insulating pad having good thermal conductivity. .

As one embodiment of the present invention, since the light source module 120 outputs a high output within a short time, a problem occurs in fever, and teeth may be damaged by fever. Therefore, the heat must be effectively radiated, one embodiment of the present invention has the advantage that can effectively radiate the heat of the light source module 120 by the coupling portion.

Referring to FIG. 5, a light source having a wavelength provided by a conventional light source module is difficult to be manufactured as a light source having a broad wavelength. Therefore, it is difficult to cure various kinds of resins. In addition, when using a light source having a wide bandwidth, the peak power is low, and when using an optical fiber coupling using an LED in the main body as in the prior art, it is difficult to produce a specific wavelength required for curing.

However, in the case of the present invention, since the dental photopolymerization apparatus 100 is placed directly in the mouth, even when using a broadband light source, there is an advantage that can provide sufficient power. Therefore, it is easy to use a broadband light source. In order to use a broadband light source, in the case of this invention, a broadband light source is provided by wavelength conversion.

6 is a graph showing the relationship between the intensity and the wavelength of the light emitted from the dental photopolymerization apparatus according to an embodiment of the present invention.

As shown in FIG. 6, when a light source having a specific wavelength is irradiated to the phosphor unit 510, the phosphor unit 510 converts the wavelength into a light source having a wavelength of 400 to 500 nm. Therefore, it is possible to form a light source that can be applied to various resins. The phosphor 510 may include Ca 5 (PO 4) 3 Cl: Eu 2+, Ca 2 B 5 O 9 Cl: Eu 2+, SrGa 2 S: Ce 3+, (Sr, Mg) 2 SiO 4: Eu 2+.

The phosphor part 510 is coated on the light source, and the cover part (not shown) is covered. The cover part is used as a mask to provide an effect of emitting only a portion where light is uniform. In addition, the phosphor part 510 may be included in the transparent cover part 320 for the convenience of the process.

7 is a view showing the configuration of a light source module according to a third embodiment of the present invention, Figure 8 is a view showing the configuration of a light source module according to a fourth embodiment of the present invention.

According to an exemplary embodiment, a lens unit 710 or a reflector 810 is included between the LED chip unit 410 and the transparent cover unit 320. Although separately configured in the embodiment, the lens unit 710 and the reflector 810 may be configured at the same time. In addition, the phosphor unit 510 may be implemented simultaneously with the lens unit 710 and / or the reflector 810.

As a problem with the prior art, the light source provided to the teeth must be irradiated with light uniformly. In order to uniformly irradiate light, the lens unit 710 and / or the reflector 810 may be used.

The lens may use an aspherical lens or a total reflection lens as disclosed in FIG. 8.

In addition, the reflector 810 may include a mirror or the like to improve uniformity.

The metal frame may be integrally formed with the reflective cup and may be separately formed on the upper surface of the metal frame. The size or shape of the reflecting cup can be determined by the size, output, LED arrangement, etc. of the light polymerizer.

The above description is merely illustrative of the technical idea of the present embodiment, and those skilled in the art to which the present embodiment belongs may make various modifications and changes without departing from the essential characteristics of the present embodiment. Therefore, the present embodiments are not intended to limit the technical idea of the present embodiment but to describe the present invention, and the scope of the technical idea of the present embodiment is not limited by these embodiments. The scope of protection of the present embodiment should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present embodiment.

100: dental light polymerization apparatus
110: battery module
120: light source module
130: lens module
210: barrel
215: support
220: first lens
230: second lens
240: lens fixing unit
250: Package
260: light source
310: coupling part
314: metal part
318: insulation
320: transparent cover
350: through hole
360: power supply
410: LED chip part
420: metal frame
510: phosphor part
520: insulation
710: lens unit
810: Reflector

Claims (12)

A light source module emitting light of a predetermined wavelength;
A battery module for supplying power to the light source module; And
Lens module including a barrel and a plurality of lenses, and controls the light irradiation area emitted by varying the distance between the lenses
Dental photopolymerization apparatus comprising a. The method of claim 1,
The light source module,
And a package for minimizing the exit of the light emitted by the light and the light emitted by the light source to the outside. The method of claim 1,
The lens module,
And a first lens disposed proximal to the light source module and a second lens disposed distal to the light source module. The method of claim 3,
The lens module,
Dental photopolymerization apparatus comprising a lens fixing portion for fixing the first lens. The method of claim 3,
The lens module,
Dental optical polymerizer characterized in that it comprises the first lens and the second lens in the barrel. The method of claim 5,
The first lens and the second lens,
Dental photopolymerization device characterized in that the support is fixed to the inside of the barrel. In the lens module for controlling the area of light emitted from the light source module to cure the resin,
A plurality of lenses for varying the focal length of the light emitted from the light source module; And
Tube for adjusting the irradiation area of the emitted light by varying the distance between the lenses
Lens module comprising a. The method of claim 7, wherein
The light source module,
And a package for minimizing the exit of the light emitted from the light source and the light emitted by the light source to the outside. The method of claim 7, wherein
The plurality of lenses,
And a second lens disposed proximal to the light source module and a second lens disposed distal to the light source module. The method of claim 9,
The lens module further comprises a lens fixing portion for fixing the first lens. The method of claim 9,
The barrel is,
The lens module, characterized in that including the first lens and the second lens therein. The method of claim 11,
The first lens and the second lens,
Lens module, characterized in that the support is fixed to the inside of the barrel.

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