KR20160076876A - Dispenser and light cylinder manufacturing method using the same - Google Patents
Dispenser and light cylinder manufacturing method using the same Download PDFInfo
- Publication number
- KR20160076876A KR20160076876A KR1020140187472A KR20140187472A KR20160076876A KR 20160076876 A KR20160076876 A KR 20160076876A KR 1020140187472 A KR1020140187472 A KR 1020140187472A KR 20140187472 A KR20140187472 A KR 20140187472A KR 20160076876 A KR20160076876 A KR 20160076876A
- Authority
- KR
- South Korea
- Prior art keywords
- optical resin
- clay
- optical
- resin
- light
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
Abstract
A dispenser and a method of manufacturing a light cylinder formed thereby are disclosed. The dispenser includes a body in which an optical resin is accommodated; An injecting part formed on one surface of the body and emitting the optical resin; And a bubble discharge passage formed on at least one side surface of the body, the bubble discharge passage removing bubbles generated when the optical resin is released.
Description
The present invention relates to a dispenser for injecting an optical resin and a method of manufacturing a light cylinder using the dispenser.
The light pipe is a device that transmits light generated from a light source through the inside of a light pipe, and can be transmitted to a remote place with a relatively small transmission loss and can be made thinner.
A conventional light pipe has an air layer inside a clay, and a reflection plate is installed inside or outside the light pipe. Such a light pipe reflects the incoming light by using a reflector.
In this case, the light output from the light source is uniformly transmitted from the input end of the light pipe to the output end (end) of the light pipe, but is not uniformly transmitted over the entire light pipe due to diffusion generated at the input end of the light pipe .
In addition, there is a disadvantage that uniformity of light transmission is reduced due to leakage phenomenon near the input end of the light pipe.
The present invention provides a dispenser capable of filling a resin capable of ultraviolet curing into the inside thereof, and a method of manufacturing a light cylinder using the dispenser. Here, the light cylinder may have a flexible characteristic.
Another object of the present invention is to provide a dispenser capable of effectively removing bubbles generated by filling an optical resin and ensuring uniformity over the entire area of a light cylinder, and a method of manufacturing a light cylinder using the dispenser.
According to one aspect of the present invention, there is provided a dispenser for optical resin injection and a method of manufacturing a light cylinder formed thereby.
According to the first embodiment, there is provided a liquid crystal display comprising: a body in which an optical resin is accommodated; An injection unit formed on one surface of the body and emitting the optical resin; And a bubble discharging passage formed on at least one side of the body, the bubble discharging passage removing bubbles generated when the optical resin is discharged.
The bubble discharge passage may be formed on both sides of the body, and may be formed adjacent to the injection unit.
The bubble eliminating passage may be formed with a leakage preventing film for preventing the optical resin leakage.
The leakage preventing film may be formed on one surface of the bubble discharging passage contacting the one side surface of the body.
A part of the body adjacent to the injection unit may have a round corner shape, and the bubble discharge passage may be formed on one side of the round corner.
The bubble eliminating passage may be formed in an " a " shape to prevent the optical resin leakage.
The bubble eliminating passage may communicate with a tank for accommodating the optical resin.
The bubble discharge passage may be formed by connecting the lower region and the upper region of one side of the body so as to penetrate.
The injection unit may be coupled with an injection needle.
According to the second embodiment, the first step of filling the clay with the optical resin using the dispenser containing the optical resin; And a second step of curing the filled optical resin, wherein the refractive index of the optical resin to be filled is determined in consideration of the refractive index of the clay, and the dispenser is capable of removing air bubbles which can be generated in the filling process The method of manufacturing a light cylinder can be provided.
The direction for curing the optical resin corresponds to the direction in which the optical resin is filled, and the curing is ultraviolet curing.
A bubble discharge passage through which the bubble can be discharged to the outside can be formed on one side of the dispenser.
In the first step, the closure may be coupled to one end of the clay.
The optical cylinder according to the present invention includes a core filled with a resin for ultraviolet curing, and can output the light output from the light source and totally transmit the light to the output terminal.
At this time, the resin is selected in consideration of the refractive index of the clay of the optical cylinder so that total internal reflection can be performed, and may be a single material or a mixed material. In particular, when the resin is made of a mixed material, the combination of the resin may be variously modified so long as it allows internal total internal reflection. That is, the selection width of the filled resin can be widened.
Further, in manufacturing the optical cylinder according to an embodiment of the present invention, bubbles generated by filling the optical resin for curing with ultraviolet rays are removed, and uniformity of light transmission in the entire region of the optical cylinder can be secured.
1 is a perspective view of a light cylinder according to a first embodiment;
2 is a perspective view of a light cylinder according to a second embodiment;
3 is a view showing the structure of a dispenser for manufacturing a light cylinder according to the first embodiment;
4 is a view showing a structure of a dispenser for manufacturing a light cylinder according to a second embodiment;
5 is a view showing a manufacturing process of an optical cylinder according to the first embodiment;
6 is a view for explaining a manufacturing process of a light cylinder according to the first embodiment;
7 is a view showing a simulation result of a light leakage produced by a light cylinder according to the first embodiment and a light cylinder manufactured by extrusion molding.
8 is a view showing a bubble movement path according to an embodiment of the present invention;
9 and 10 are diagrams illustrating dispensers compared to dispensers of the present invention.
11 illustrates a dispenser system in accordance with one embodiment of the present invention.
12 illustrates operation of a dispenser according to an embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
The terms first, second, etc. 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.
The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.
The present invention relates to a dispenser capable of filling an optical resin for manufacturing a light cylinder manufactured by filling an optical resin capable of being cured with ultraviolet rays, and a method of manufacturing an optical cylinder using the dispenser.
The light cylinder can be manufactured by filling a light-transmissive optical resin in a light-diffusible clay such as a tube or the like, followed by ultraviolet curing. Here, the core produced as the filled optical resin is cured may have a total reflection relationship with the clay. As a result, the light incident on the optical cylinder can be transmitted to the output end of the optical cylinder without leakage.
Here, the optical resin can be filled in the clay by using a dispenser. The dispenser according to the first embodiment can effectively remove bubbles generated in the process of filling the optical resin in the clay. This will be described in more detail with reference to FIG. 3 below.
Further, according to another embodiment, the resin forming the core may be produced by mixing a plurality of materials capable of transmitting light. Preferably, a resin having a desired refractive index may be formed by mixing optical materials so as to form a total reflection relationship with the material forming the clay. However, it should be apparent to those skilled in the art that the constituents of the resin can be variously modified as long as the clay and the core have a total internal reflection, and such modifications fall within the scope of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view of a light cylinder according to a first embodiment, and FIG. 2 is a perspective view of a light cylinder according to a second embodiment.
As shown in FIG. 1, the
The
According to the first embodiment, the shape of the
The
The
Although the thickness of the
The inside of the
The
Can be formed through homopolymers or copolymers of polymethylmethacrylate (PMMA), polycarbonate (PC) homopolymers and copolymers or resins based on polypropylene homopolymers or copolymers.
Here, polymethyl methacrylate (PMMA) is a polymer having methyl methacrylate as a raw material and has the highest transparency and weatherability among plastics, has a light transmittance of 90 to 91%, and is easily colored.
Polycarbonate (PC) is easily processed by injection molding, extrusion molding, and has excellent optical properties and toughness. That is, the polycarbonate resin has a visible light transmittance of about 89% on average.
Polypropylene is a thermoplastic resin that softens when heated, forms a spiral structure with a polymer of propylene monomer, has a unique crystal structure, and has properties such as excellent rigidity, heat resistance, and chemical stability.
Polyethylene (PE) is divided into Low Density Polyethylene (LDPE) and High Density Polyethylene (HDPE). It has the advantage of being manufactured easily when manufacturing clay by extrusion process.
In the case of polyurethane and thermosetting urethane elastomer, it is a material having a three-dimensional structure, which has quality and chemical stability and has an advantage that a material having high transmittance can be formed.
The
According to one embodiment, the
A method of forming the
Therefore, in the method of manufacturing the optical cylinder of the present invention, the
For example, when the
Particularly, when the
However, such an optical resin may be a single substance or a mixed substance. In the case of a mixed material, the materials constituting the optical resin may be various combinations so as to match the refractive index of the determined resin. For example, when the refractive index of the optical resin to be filled is determined to be 1.5, an acrylic resin having excellent optical properties and an acrylate having excellent adhesiveness as a main chain, an optical resin having a high refractive index, and an acrylate . That is, the combination of the optical resin may be variously modified as long as the refractive index is determined.
Although it is mentioned above that two materials are combined to form a filler resin, three or more materials may be combined.
In the above description, the filling resin is ultraviolet cured. However, the filling resin is not limited to ultraviolet rays as long as the filling resin is cured after being filled in the
In summary, in the optical cylinder manufacturing method of the present embodiment, the optical resin having the refractive index determined in consideration of total internal reflection is filled in the
Further, in the conventional light pipe, a reflector is required to transmit light. However, in the
In the above description, the
The
FIG. 3 is a view showing a structure of a dispenser for manufacturing a light cylinder according to the first embodiment, and FIG. 4 is a view showing a structure of a dispenser for manufacturing a light cylinder according to the second embodiment.
3, a dispenser for filling an optical resin in the
The
A connecting
Further, at least one side surface of the
When the optical resin is filled into the
Therefore, it is important to remove air bubbles that can be generated when the optical resin is filled into the
According to one embodiment, the
As shown in FIG. 8, bubbles generated when filling the optical resin into the
9, when the
10, even when the
Accordingly, the
At this time, the
As another example, the
As another example, the
As another example, the
The
In addition, the
That is, in the optical cylinder manufacturing method of the present embodiment, the
3 shows an example in which the
The position where the
The
The
Fig. 12 shows the closed and open states of the
That is, the
The optical resin accommodated in the
Further, an injection needle may be connected to the
The injection needle is connected to the
FIG. 5 is a view showing a manufacturing process of the optical cylinder according to the first embodiment, and FIG. 6 is a view illustrating the manufacturing process of the optical cylinder according to the first embodiment.
In the
The
As shown in FIG. 6, in the
3, the dispenser 300 can immediately remove bubbles generated by the release of the optical resin to release the optical resin to the
The
The
In the
6, the ultraviolet ray irradiation direction for ultraviolet curing of the resin can be irradiated in a direction coinciding with the direction in which the resin is injected into the
As shown in FIG. 3, a
An inspection process for inspecting the
In the sixth step (535), the optical cylinder (100) passed the inspection process is commercialized.
7 is a graph comparing simulation results of the light leakage phenomenon of the optical cylinder manufactured according to the extrusion molding and the optical cylinder according to the first embodiment.
Fig. 7 (a) is a simulation result of light leakage of the optical cylinder according to the first embodiment, and Fig. 7 (b) is a simulation result of light leakage of a light cylinder manufactured by extrusion molding.
As shown in FIG. 7 (b), it can be seen that many light leakage phenomena are generated in the curve region where the light source is incident in the optical cylinder manufactured by extrusion molding.
In contrast, in the
In addition, in the light pipe manufactured by the extrusion process and the optical cylinder according to the first embodiment, a small amount of leakage phenomenon occurs in the bended part (A), but a very small amount It is lighted.
As a result, when comparing the light source emitted from the output portion opposed to the surface on which the light source is incident, the light cylinder manufactured according to the extrusion molding has a large amount of light due to the light leakage phenomenon that is largely emitted in the curve region adjacent to the point where the light source is incident And light is emitted relatively weakly at the output end of the light cylinder.
On the other hand, the optical cylinder manufactured by filling the outer-curing resin according to the first embodiment has a light leakage phenomenon in a region where a lot of light loss has occurred in a light cylinder manufactured by extrusion molding (a curve region adjacent to a point where a light source is incident) The light is uniformly emitted from the output end of the light cylinder.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.
100: Light cylinder
110: Clay
120: Core
300: Dispenser
310: Body
315:
320, 325: first inlet, second inlet
330: bubble discharge passage
?
Claims (13)
An injection unit formed on one surface of the body and emitting the optical resin; And
And a bubble discharge passage formed on at least one side of the body to remove bubbles generated when the optical resin is discharged.
The bubble discharge passage is formed on both sides of the body,
Wherein the dispenser is formed adjacent to the injection unit.
Wherein the bubble elimination passage is formed with a leakage preventing film for preventing the optical resin leakage.
Wherein the leakage preventing film is formed on one side of the bubble discharging passage which abuts on one side of the body.
Wherein a portion of the body adjacent the injection portion is configured in a rounded corner shape,
And the bubble discharging passage is formed to communicate with one surface of the round corner.
Wherein said bubble discharge passage is formed in an "" shape to prevent said optical resin leakage.
And the bubble discharge passage communicates with a tank that houses the optical resin.
Wherein the bubble discharging passage is formed so as to penetrate through a lower region and an upper region of one side of the body.
Wherein the injection unit is coupled to the injection needle.
And a second step of curing the filled optical resin,
Wherein the refractive index of the optical resin to be filled is determined in consideration of the refractive index of the clay, and the dispenser has a function of removing bubbles that can be generated in the filling process.
Wherein a direction for curing the optical resin coincides with a direction in which the optical resin is filled,
Wherein said curing is ultraviolet curing.
Wherein a bubble discharge passage is formed in one side surface of the dispenser so that bubbles can be discharged to the outside.
Wherein a closure is coupled to one end of the clay in the first step.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140187472A KR20160076876A (en) | 2014-12-23 | 2014-12-23 | Dispenser and light cylinder manufacturing method using the same |
US14/635,549 US10725236B2 (en) | 2014-12-23 | 2015-03-02 | Light cylinder, dispenser, and light cylinder manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140187472A KR20160076876A (en) | 2014-12-23 | 2014-12-23 | Dispenser and light cylinder manufacturing method using the same |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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KR1020170146399A Division KR101950767B1 (en) | 2017-11-06 | 2017-11-06 | Dispenser and light cylinder manufacturing method using the same |
KR1020170146398A Division KR101950766B1 (en) | 2017-11-06 | 2017-11-06 | Dispenser and light cylinder manufacturing method using the same |
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Publication Number | Publication Date |
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KR20160076876A true KR20160076876A (en) | 2016-07-01 |
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KR1020140187472A KR20160076876A (en) | 2014-12-23 | 2014-12-23 | Dispenser and light cylinder manufacturing method using the same |
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