JP2022176118A - Mold release type non-dicing mold for manufacturing micro-array lenses, and method for manufacturing micro-array lenses using the same - Google Patents

Abstract

To provide a mold release type non-dicing mold configured to save manpower required for manufacturing micro-array lenses, and a method for manufacturing micro-array lenses using the same.SOLUTION: The mold release type non-dicing mold comprises: a lower plate portion 100; a holder 200 which includes a holder body 210, a first coupling groove 220 formed in the center of the holder body and formed in a shape corresponding to a coupling projection 110, and a plurality of machined holes 230 formed in the holder body and formed to be spaced apart from each other at regular intervals, and is coupled to an upper part of the lower plate portion; and a plurality of lower core portions 300, each of which has a shape and the number corresponding to the machined holes of the holder portion, is inserted into the machined holes of the holder portion, and is secured to the upper part of the lower plate portion; and an upper core portion 400 which has a shape and the number corresponding to the machined holes of the holder portion, is configured to be at least partially inserted into the machined holes, is positioned at the upper part of the lower core portion, and is configured so as to move upward and downward.SELECTED DRAWING: Figure 3

Description

The present invention relates to a release type non-dicing mold for manufacturing a microarray lens and a method for manufacturing a microarray lens using the same.

More specifically, in a state in which the object to be molded is placed between the lower core portion and the upper core portion, the press plate presses the upper core portion to mold the object to form the microlens. Releasable type non-dicing mold for manufacturing microarray lenses configured to reduce manpower required for microlens manufacturing by allowing manufacturing to be automated, and use thereof The present invention relates to a method for manufacturing a microarray lens.

In general, with the development of ultra-precision processing, aspherical lenses can be processed into hard and brittle materials such as cemented carbide, and it is possible to produce aspherical lenses with small shape errors in a short time. It became so.

As a conventional method for molding an aspherical lens, glass exhibits the property of softening when the transition temperature (Tg) is exceeded. It is a molding technology that uses the principle of making a glass mold press method (Glass Mold Press, GMP).

Glass exhibits significant changes in physical properties above its transition temperature (Tg), and the difference in physical properties varies depending on the heating and cooling rates. A number of cooling steps are performed.

However, the conventional GMP method has a limitation in that the time required for manufacturing a product cannot be reduced below a certain time in order to prevent process stress on the glass material.

In such a conventional GMP method, high pressure is applied in the state of the glass transition temperature, so even if a large amount of stress is applied to the glass material and gradual cooling is performed, the degree of deformation of the physical properties of the glass material is large. will become

Further, in the conventional GMP method, high pressure is applied in a short period of time, so the core receives a large impact and is damaged. That is, frequent heat changes and high pressure pressing can reduce the life of the core.

As described above, as a lens molding apparatus using the GMP method, Korean Patent Publication No. 1739760 describes an aspherical lens that can automate the manufacturing process of an aspherical lens with a mold having a large number of cavities. An automated apparatus for manufacturing is disclosed.

In the prior art described above, a mold put into a pressure molding machine is pressed through a pressurizing means to mold a lens. As a result, a high-pressure press is applied to the mold for a short period of time, so there is still the problem of damage to the mold. That is, frequent heat changes and high pressure presses can damage the mold, thereby reducing the life of the mold.

On the other hand, small mobile devices are equipped with various additional functions in addition to a simple voice call function, thereby enhancing user convenience. Recently, with the rapid development of information and communication technology, the speed of data communication has increased and the amount of data communication has increased. It has a built-in high-pixel camera module to which a lens is applied.

Microlenses are widely used not only in liquid crystal display devices and optical communication systems but also in medical equipment and the like.

As such, high-definition pictures and videos can be taken by applying a high-pixel image sensor, but due to the miniaturization of mobile devices, camera modules are becoming thinner and lighter. There is a need.

As a manufacturing method for reducing the weight of a camera module, a method of manufacturing a large number of lenses of the same shape using an ultraviolet curable polymer for use in the camera module is applied.

The lens manufacturing process of the polymer replication method includes a mastering process of manufacturing a master lens, a stamping process of manufacturing a lens mold using the master lens manufactured by the mastering process, and a stamping process. It consists of an embossing process in which a liquid polymer is injected into a mold to manufacture a lens wafer, and a dicing process in which the lens wafer is cut.

Among these lens manufacturing processes, the mastering process involves first dropping a liquid polymer on the core, exposing it to ultraviolet rays to first cure the polymer, and then applying a second liquid polymer to the cured lens part. Drop it and attach the lens part to the glass wafer. By repeating this process, a large number of master lenses are formed on one glass wafer, and then the master lenses are cured by exposing the glass wafer to ultraviolet rays.

However, in the conventional mold for master lens production, the polymer directly contacts the rough surface of the metal material, so when the mold is separated, part of the polymer may adhere to the surface and cause defects. be.

On the other hand, in order to mass-produce lenses, a plurality of aspheric convex portions are formed on a base substrate, diced, separated into individual pieces, and then post-processed.

FIG. 1 shows a square aspherical glass lens to which the present invention is applied. As shown in FIG. 1, the square aspherical lens L has an aspherical surface AS formed on one side surface of a substrate B having a substantially rectangular shape.

As shown in FIG. 2a, such a square aspherical lens is post-processed by forming a number of aspherical surfaces on a base substrate P, and performing dicing and precision polishing using a cutter C to form a square shape. A cleaning step is required to remove processing and foreign matter. As a result, after the dicing process, the product yield is reduced due to quality deterioration, and tolerance control between core molds and quality differences between cores occur.

In this way, in the processing of microlenses, there are many difficulties when relying on machining, and new processing techniques are being tried to overcome these problems. However, there is a limit to the number of lenses that can be produced, and the lenses to be manufactured are also expensive.

On the other hand, a manufacturing apparatus using a slide mold includes a lower core installed on the upper part of the plate, a core pin for molding the lower part of the lens is connected to the center, and a number of guide grooves are formed on the upper part, and the guide grooves. and a slide core that molds the side surface of the lens while reciprocating. an upper core to be moved; a fixed holder installed on the upper part of the support plate and having a core hole formed therein to receive the lower core and the upper core; , a sleeve formed with a through hole having an inner diameter the same as the outer diameter of the fixed holder.

FIG. 2b shows the main parts of a manufacturing apparatus using such slide molds. Such a slide mold molds a rectangular substrate including lenses by means of a slider S that slides horizontally while lowering the upper core in the vertical direction. However, there was a problem that it was impossible to apply automation.

Korean Patent Publication No. 10-2025429 "Self-weight Pressurizing Lens Molding Apparatus Using Load Factor" (2019.09.19.) Korean Patent Publication No. 10-1823609 "Slide Mold Apparatus for Microlenses" (2018.01.24.)

The present invention has been made to solve such problems. , The press plate unit presses the upper core unit to mold the object to be molded, thereby automating the production of the microlens, thereby reducing the manpower required for the production of the microlens. It is an object of the present invention to provide a releasable type non-dicing mold for manufacturing a microarray lens configured as above, and a method for manufacturing a microarray lens using the same.

In order to solve the above problems, a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention is formed into a disk shape and has a lower plate portion on which coupling protrusions are formed, and a holder body. , a first coupling groove that is formed in the center of the holder body and has a shape corresponding to the coupling protrusion, and a plurality of grooves that are formed along the circumference of the holder body but mutually a plurality of machining holes formed at regular intervals, the holder part being coupled to the upper part of the lower plate part; It consists of a plurality of lower core parts configured to be inserted into the machined holes of and fixed to the upper part of the lower plate part, and a shape and number corresponding to the machined holes of the holder part, at least part of which is the machined an upper core part configured to be inserted into the hole but positioned above the lower core part and configured to be movable up and down.

Further, the coupling protrusion of the lower plate part has a D-shaped cross section, and is configured to prevent rotation of the holder part when inserted into the first coupling groove of the holder part. Characterized by

Further, a spacer part coupled to the lower plate part but positioned under the holder part and configured to prevent rotation of the lower core part is further included, and the spacer part includes a spacer body. and a second coupling groove formed in the center of the spacer body and having a shape corresponding to the coupling protrusion, and a plurality of grooves arranged at regular intervals along the circumference of the spacer body. and a rotation prevention groove that is spaced apart and has a shape corresponding to the shape of the lower portion of the lower core portion to prevent rotation of the lower core portion.

In addition, the lower core portion includes a lower end member positioned below the lower core portion and configured to be a rotation prevention groove of the spacer portion, and the lower end member of the lower core portion has a cross section is formed in a D-cut shape so that the lower core is prevented from rotating when inserted into the anti-rotation groove of the spacer.

In addition, the lower core portion includes a projecting portion projecting from the upper portion of the lower core portion, and a non-molding material formed in the projecting portion and inserted between the lower core portion and the upper core portion. and one or more aspheric shaped grooves configured to form a spherical surface.

In addition, a sleeve part is further included, which is coupled to the protrusion of the lower core part and configured to form an outer surface of a molded object inserted between the lower core part and the upper core part to be molded. characterized by being

In addition, the sleeve portion includes an external mold forming a fixed space therein, a first internal mold formed in a shape of "┐" and inserted into the fixed space of the external mold, and the first internal mold. It is formed in a '└' shape corresponding to the '┐' shape of the mold and is inserted into the fixed space of the outer mold, but is inserted in a structure symmetrical with the first inner mold, and is inserted into the outer mold. and a second inner mold configured to fill the fixed space of the second inner mold to form a molding space between the first inner mold and the first inner mold.

In addition, a press plate portion that presses the upper core portion in the downward direction at the upper portion of the upper core portion so that the object to be molded that is arranged between the lower core portion and the upper core portion is molded. is further included, and the upper core portion is configured to be exposed above the processed hole in a state of being inserted into the processed hole of the holder portion, but is at least larger than the processed hole of the holder portion When formed with a size having an area and being pressurized by the press plate portion, the lower surface is configured to come into surface contact with the upper adjacent portion of the processing hole, thereby increasing the pressurization range of the press plate portion. A head member is included that is configured to limit the

In addition, a press plate portion that presses the upper core portion in the downward direction at the upper portion of the upper core portion so that the object to be molded that is arranged between the lower core portion and the upper core portion is molded. and the inner peripheral edge of the lower plate part is in contact with the outer peripheral edge of the holder part so that the holder part is not exposed to the outside. and a stopper part configured to limit the pressure range of the press plate part by protruding upward.

On the other hand, the method of manufacturing a microarray lens using a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention for solving such problems is the first step in which the lower plate portion is fixed to the workbench. a second fixing step of fixing the holder body to the upper portion of the lower plate portion by connecting the connecting protrusion of the lower plate portion with the first connecting groove of the holder portion; a first inserting step of inserting a core portion; an inserting step of inserting an object to be molded into a molding groove formed in the lower core portion; and a second inserting step of inserting an upper core portion into a machining hole of the holder portion. and a pressurizing step of pressurizing the upper portion of the upper core portion to pressurize the molded object positioned between the lower core portion and the upper core portion.

According to the releasable non-dicing mold for manufacturing the microarray lens according to the present invention and the method for manufacturing the microarray lens using the same, the object to be molded is placed between the lower core portion and the upper core portion. In this state, the press plate portion presses the upper core portion so that the molded object is molded, thereby automating the production of the microlens, thereby providing the necessary components for the production of the microlens. An advantage is that it is configured to save manpower.

In addition, according to the present invention, the connecting protrusion of the lower plate part has a D-shaped cross section, and the first connecting groove of the holder part has a shape corresponding to the shape of the connecting protrusion of the lower plate part. With this structure, when the lower plate part and the holder part are coupled, the rotation of the holder part can be prevented.

In addition, according to the present invention, the spacer part is coupled to the lower plate part, and is positioned below the holder part, and is configured such that the lower end member of the lower core part is inserted into the anti-rotation groove, The effect of preventing the rotation of the lower core portion is obtained.

In addition, according to the present invention, one or more aspheric surface forming grooves configured to form an aspheric surface of the molded article are configured to be formed in the protruding portion protruding from the upper portion of the lower core portion. By connecting the sleeve portion to the protruding portion of the lower core portion, the outer surface of the molded object configured to form an aspherical surface by the aspherical surface forming groove is shaped by the sleeve portion. You can get the effect of trimming.

In addition, according to the present invention, the portion that comes into direct contact with the outer surface of the object to be molded when molding the object is composed of the first internal mold and the second internal mold, which are separated from each other. By being configured to be easy to use, it is possible to obtain the effect of being configured to reduce the breakage rate during takeout after the microlenses are molded.

In addition, according to the present invention, the press plate portion configured to press the upper core portion downward so as to allow molding of the object to be molded is performed in the upper portion of the upper core portion. Since the pressure range is limited by the head member formed in the head member, there is no separate structure for limiting the pressure range of the press plate part, so manufacturing costs are reduced and equipment damage is prevented. It is possible to obtain the effect of being able to prevent loss due to replacement due to, for example.

Further, according to the present invention, the press plate portion configured to press the upper core portion in the downward direction at the upper portion of the upper core portion so that the molded object is molded is formed on the outer peripheral edge of the holder portion. Although it is provided in contact with the upper core part and the lower core part due to excessive pressing and pressure, the stopper part configured to be higher than the holder part limits the pressure range. Advantageously, it is configured to prevent problems such as part breakage and microlens fabrication errors.

1 is a diagram showing a conventional microlens; FIG. It is a conceptual diagram showing a conventional method of manufacturing a microlens. It is a conceptual diagram showing a conventional method of manufacturing a microlens. FIG. 2 is a view showing a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention; FIG. 4 is a diagram showing a spacer portion in a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention; FIG. 4 is a diagram showing a spacer portion in a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention; FIG. 4 is a diagram showing a sleeve portion in a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention; FIG. 4 is a diagram showing a sleeve portion in a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention; FIG. 4 is a diagram showing a sleeve portion in a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention; 1 is a view showing a first embodiment of a press plate part in a release type non-dicing mold for manufacturing a microarray lens according to the present invention; FIG. 1 is a view showing a first embodiment of a press plate part in a release type non-dicing mold for manufacturing a microarray lens according to the present invention; FIG. FIG. 4 is a view showing a second embodiment of a press plate part in a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention; FIG. 4 is a view showing a second embodiment of a press plate part in a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention; 1 is a flowchart showing a method for manufacturing a microarray lens using a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention; FIG.

Terms and words used in the specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventors are responsible for describing their invention in the best possible way. , should be interpreted with meanings and concepts consistent with the technical idea of the present invention in accordance with the principle that the concepts of terms can be appropriately defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely one of the most preferred embodiments of the present invention, and do not represent the entire technical idea of the present invention. There may be various equivalents and modifications that may be substituted therefor at the time of this application.

Prior to the following description with reference to the drawings, matters not necessary for illustrating the gist of the present invention, that is, known configurations that can be obviously added by those skilled in the art having ordinary knowledge are not illustrated. , or clarifies that it is not specified.

In the present invention, a microlens is formed by pressing the upper core portion with the press plate while the object to be molded is placed between the lower core portion and the upper core portion so that the object to be molded is molded. Releasable type non-dicing mold for manufacturing microarray lenses configured to reduce manpower required for microlens manufacturing by allowing manufacturing to be automated, and use thereof The present invention relates to a method for manufacturing a microarray lens.

Hereinafter, a release type non-dicing mold for manufacturing a microarray lens according to the present invention and a method for manufacturing a microarray lens using the mold will be described in detail with reference to the accompanying drawings.

FIG. 3 is a view showing a releasable type non-dicing mold for manufacturing the microarray lens according to the present invention.

3, a releasable non-dicing mold for manufacturing a microarray lens according to the present invention and a method for manufacturing a microarray lens using the mold include a lower plate part 100 and a holder part 200. , a lower core portion 300 and an upper core portion 400 may be included.

The releasable non-dicing mold for manufacturing the microarray lens of the present invention and the method for manufacturing the microarray lens using the same are performed by the holder portion 200 installed on the lower plate portion 100. The upper core part 400 is vertically movable while the positions of the lower core part 300 and the upper core part 400 are fixed. It is configured to heat and pressurize the molded object 10 that is put in to manufacture a microlens.

The lower plate part 100 is formed in a disk shape, and protrudes upward from the center of the lower plate part 100 to prevent rotation of the holder part 200, which will be described later. A coupling protrusion 110 is formed.

The coupling protrusion 110 of the lower plate part 100 is configured to prevent the rotation of the holder part 200 and the rotation of equipment coupled to the coupling protrusion 110. The coupling protrusion 110 of the plate part 100 may be configured to have a D-shaped cross section.

In other words, the coupling protrusion 110 of the lower plate part 100 does not have a simple circular shape but has a corner where at least two surfaces meet to prevent rotation of the holder part 200 coupled to the coupling protrusion 110 . may consist of

In other words, although the connecting protrusion 110 of the lower plate part 100 is illustrated and described as having a D-shaped cross section in the present invention, the connecting protrusion 110 of the lower plate part 100 may be different depending on the implementation environment. The shape can be variously modified, such as triangular, square, elliptical, etc., as long as the structure prevents rotation of the holder part 200 coupled to the coupling protrusion 110 of the lower plate part 100 .

In addition, a plurality of lift holes 120 may be formed in the lower plate part 100 at positions corresponding to positions of the lower core part 300 to be described later. And after manufacturing the microlenses by the upper core part 400, a separate lift pin (not shown) is raised to take out the manufactured microlenses.

The holder part 200 is configured to be coupled to the upper part of the lower plate part 100, and is configured to fix the lower core part 300 and guide the upward movement of the upper core part 400. may

The holder part 200 includes a holder body 210, a first coupling groove 220 formed in the center of the holder body 210 and having a shape corresponding to the coupling protrusion 110, and a plurality of the holder body. A plurality of machined holes 230 formed along the circumference of 210 but spaced apart from each other at regular intervals may be included.

That is, since the first coupling groove 220 is for coupling the holder body 210 to the upper portion of the lower plate part 100 , it has a shape corresponding to the D-cut shape of the coupling protrusion 110 of the lower plate part 100 . The plurality of processing holes 230 may be formed to accommodate the lower core portion 300 and the upper core portion 400 therein, so that the lower core portion 300 and the upper core portion 400 to be described later may be formed. may be formed in a shape corresponding to the shape of

Further, the holder part 200 may be formed with a holder discharge port 240 having a shape penetrating from the processing hole 230 to the outer peripheral edge of the holder part 200, and the holder discharge port 240 may be formed by the processing The holes 230 are for discharging combustion gas generated during the process of molding the molding 10 by the lower core portion 300 and the upper core portion 400, which will be described later, to the outside.

One or a plurality of such holder outlets 240 may be formed per one processing hole 230, and the number of holder outlets 240 may be varied according to the implementation environment.

The lower core part 300 has a shape and number corresponding to the machining hole 230 of the holder part 200 , is inserted into the machining hole 230 of the holder part 200 , and is fixed to the upper part of the lower plate part 100 . be done.

Such a lower core portion 300 may be configured to form an aspherical surface of the molded article 10 to be placed between the lower core portion 300 and the upper core portion 400, which will be described later.

More specifically, the lower core part 300 has a protrusion 320 that protrudes from the upper part of the lower core part 300 , and a protrusion formed on the protrusion 320 between the lower core part 300 and the upper core part 400 . One or more aspherical molding grooves 330 configured to form an aspherical surface of the input molding 10 may be included.

That is, the release type non-dicing mold for manufacturing the microarray lens of the present invention and the method for manufacturing the microarray lens using the same are provided by forming the molding groove 330 formed in the projecting portion 320 of the lower core portion 300. An upper core portion 400, which will be described later, is positioned above the lower core portion 300, and the upper core portion 400 is pressed downward to press the object 10 to be molded. It is configured to be molded into microlenses.

The upper core part 400 has a shape and number corresponding to the machining hole 230 of the holder part 200 , and at least a part of the upper core part 400 is configured to be inserted into the machining hole 230 . It is located on the upper part and configured to be able to move up and down.

In other words, the upper core part 400 descends after the object to be molded is put on the upper part of the lower core part 300 in a state of rising upward, and the object to be molded 10 together with the lower core part 300 is lowered. are pressed to produce microlenses.

On the other hand, in the release type non-dicing mold for manufacturing the microarray lens of the present invention and the method for manufacturing the microarray lens using the same, the mold is inserted into the processing hole 230 of the holder part 200, and the mold is inserted into the mold. A heater (not shown) configured to apply heat to the lower core portion 300 and the upper core portion 400 configured to mold the article 10 may further be included, such heaters being Alternatively, heat may be applied to the object to be molded 10 to facilitate deformation of the object to be molded 10 .

4a and 4b are diagrams showing the spacer part of a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention.

4a and 4b, the release type non-dicing mold for manufacturing the microarray lens of the present invention and the method for manufacturing the microarray lens using the mold include the lower plate part 100. A spacer portion 500 coupled to and configured to prevent rotation of the lower core portion 300 may be further included.

The spacer part 500 is configured to determine the position of the lower core part 300 and fix the lower core part 300 before the holder part 200 is coupled. Accordingly, the spacer part 500 may set the position of the lower core part 300 and prevent the rotation of the lower core part 300 .

The spacer part 500 includes a spacer body 510, a second coupling groove 520 formed in the center of the spacer body 510 and having a shape corresponding to the coupling protrusion 110, and a plurality of the spacer bodies. 510 are spaced apart from each other in the circumferential direction of 510 and are formed in a shape corresponding to the shape of the lower part of the lower core part 300 so that the lower core part 300 is prevented from rotating. An anti-rotation groove 530 may also be included.

Like the first coupling groove 220 of the holder part 200 , the second coupling groove 520 of the spacer part 500 is formed in a shape corresponding to the shape of the coupling protrusion 110 of the lower plate part 100 . Therefore, it may be configured to have a shape corresponding to the D-cut shape of the coupling protrusion 110, and the anti-rotation groove 530 of the spacer part 500 fixes the lower part of the lower core part 300 so that the It prevents the lower core part 300 from rotating.

The lower core part 300 may include a lower end member 310 positioned below the lower core part 300 and configured to receive the anti-rotation groove 530 of the spacer part 500 . The lower end member 310 of the part 300 may have a D-shaped cross section and be configured to prevent the rotation of the lower core part 300 when inserted into the anti-rotation groove 530 of the spacer part 500 . .

That is, the lower core part 300 is configured such that the lower end member 310 is inserted into and fixed to the rotation prevention groove 530 of the spacer part 500, thereby preventing the rotation of the lower core part 300. It is configured as follows.

The shape of the lower end member 310 of the lower core part 300 and the shape of the anti-rotation groove 530 of the spacer part 500 are according to the present invention, the coupling protrusion 110 of the lower plate part 100 and the first coupling groove of the holder part 200 . Similar to the D-cut shape of 220, the D-cut shape is shown and described as an example, but the coupling protrusion 110 of the lower plate part 100 and the first coupling groove 220 of the holder part 200 are D-cut. If the bottom member 310 of the lower core part 300 is inserted into the anti-rotation groove 530 of the spacer part 500 to prevent the rotation of the lower core part 300, it may be triangular. It can be modified in any number of ways, such as a shape, a square shape, an elliptical shape, and the like.

5a to 5c are diagrams showing the sleeve portion of a releasable type non-dicing mold for manufacturing the microarray lens according to the present invention.

5a to 5c attached, the release type non-dicing mold for manufacturing the microarray lens of the present invention and the method for manufacturing the microarray lens using the mold include the lower core part 300. and a sleeve portion 600 configured to be inserted between the lower core portion 300 and the upper core portion 400 to form the outer surface of the molded object 10 to be molded. may

When the molding object 10 is molded into a microlens, the sleeve part 600 is configured to be easily detached, thereby preventing damage that may occur when the microlens is taken out. It may be configured as

The sleeve part 600 includes an outer mold 610 forming a fixed space 611 therein, a first inner mold 620 having a shape of ┐ and inserted into the fixed space 611 of the outer mold 610, It is formed in a '└' shape corresponding to the '┐' shape of the first inner mold 620, and is inserted into the fixed space 611 of the outer mold 610, but has a symmetrical structure with the first inner mold 620. and a second inner mold 630 configured to be inserted into the outer mold 610 to fill the fixed space 611 of the outer mold 610 to form a molding space 640 with the first inner mold 620. good too.

That is, the sleeve part 600 has the first inner mold 620 and the second inner mold 620 so that the microlens molded by heating and pressing between the lower core part 300 and the upper core part 400 can be easily removed. The second inner mold 630 is configured to be easily detached from the outer mold 610 .

In other words, the first inner mold 620 and the second inner mold 630 are described as being formed in a ┐ shape and a └ shape and coupled to each other, but actually It may be understood that they are formed in the same “┐” shape and coupled with each other, and the structure and shape of the first inner mold 620 and the second inner mold 630 are the same as the first inner mold 620 and the second inner mold 630 . The inner mold 620 and the second inner mold 630 are configured to be produced on the same production line, thereby reducing the cost of providing a separate production line.

6a and 6b are diagrams showing a first embodiment of a press plate part of a release type non-dicing mold for manufacturing a microarray lens according to the present invention.

6a and 6b attached, the release type non-dicing mold for manufacturing the microarray lens of the present invention and the method for manufacturing the microarray lens using the mold include the upper core part 400. At the top of the press plate part 700, the upper core part 400 is pressed downward so that the molded object 10 disposed between the lower core part 300 and the upper core part 400 is molded. may be included.

The outer diameter of the press plate part 700 may be equal to or larger than that of the lower plate part 100, and is configured to press the upper core part 400 using its own weight. may

In addition, the upper core part 400 is configured to be exposed above the machining hole 230 in a state of being inserted into the machining hole 230 of the holder part 200 , but at least the machining hole 230 of the holder part 200 is exposed. When the press plate portion 700 is pressed by the press plate portion 700, the lower surface of the press plate portion 700 is configured to come into surface contact with the adjacent portion above the processing hole 230. A head member 410 configured to limit the pressure range of 700 may be included.

That is, when the head member 410 is pressed by the press plate portion 700 , the lower portion of the head member 410 having a larger area than the processing hole 230 of the holder portion 200 is formed with the processing hole 230 of the holder portion 200 . It is configured to limit the pressure range of the press plate part 700 by coming into contact with the adjacent parts.

In other words, when pressure is applied by the press plate part 700 , the body of the upper core part 400 excluding the head member 410 of the entire upper core part 400 is inside the processing hole 230 of the holder part 200 . , and the head member 410 of the upper core part 400 comes into contact with the part adjacent to the machining hole 230 of the holder part 200 .

The head member 410 of the upper core part 400 may be separately installed on the body of the upper core part 400 or may be integrated with the body of the upper core part 400 . good.

7a and 7b are diagrams showing a second embodiment of a press plate part of a release type non-dicing mold for manufacturing a microarray lens according to the present invention.

7a and 7b, the release type non-dicing mold for manufacturing the microarray lens of the present invention and the method for manufacturing the microarray lens using the mold include the upper core part 400. a press plate part 700 that presses the upper core part 400 downward in the upper part of the to mold the object 10 disposed between the lower core part 300 and the upper core part 400; Although it is positioned above the lower plate part 100, the inner peripheral edge is configured to be in contact with the outer peripheral edge of the holder part 200 so that the holder part 200 is not exposed to the outside and is positioned above the holder part 200. A stopper part 800 configured to limit the pressing range of the press plate part 700 by protruding may be further included.

That is, the stopper part 800 is formed in a ring shape and positioned outside the holder part 200 to limit the pressing range of the press plate part 700 .

At this time, the stopper part 800 may be formed with a stopper outlet 810 for discharging the combustion gas discharged from the holder outlet 240 of the holder part 200 to the outside of the stopper part 800 . The number of stopper outlets 810 may be equal to or less than that of the holder outlets 240 .

FIG. 8 is a flowchart showing a method of manufacturing a microarray lens using a releasable non-dicing mold for manufacturing a microarray lens according to the present invention.

Referring to FIG. 8 attached, the method for manufacturing a microarray lens using a releasable type non-dicing mold for manufacturing a microarray lens according to the present invention includes a first fixing step (S10), a second fixing step (S10), A step (S20), a first inserting step (S30), a loading step (S40), a second inserting step (S50), and a pressurizing step (S60) may be included.

The first fixing step (S10) is a step of fixing the lower plate part 100 to the workbench.

At this time, the lower plate 100 may be configured to be fixed to the workbench by being configured to be coupled with a separate fixing means. A fixing method of the lower plate 100 fixed to the workbench by the fixing means can be changed according to the implementation environment.

The second fixing step ( S<b>20 ) is a step of connecting the connecting protrusion 110 of the lower plate part 100 and the first connecting groove 220 of the holder part 200 to fix the holder body 210 to the upper part of the lower plate part 100 .

At this time, the coupling protrusion 110 of the lower plate part 100 is formed in a D-shaped shape, and the first coupling groove 220 of the holder part 200 is formed in a shape corresponding to the shape of the coupling protrusion 110. The holder body 210 may be fixed to the upper portion of the lower plate part 100 so as not to rotate.

The first inserting step ( S<b>30 ) is a step of inserting the lower core part 300 into the machined hole 230 of the holder part 200 .

Depending on the implementation environment, the processing hole 230 of the holder part 200 may be formed in a D-cut shape like the coupling protrusion 110 of the lower plate part 10 , and the shape of the lower core part 300 may be the shape of the holder part 200 . When the lower core part 300 is formed in a shape corresponding to the machining hole 230 , the lower core part 300 may not be rotated when the lower core part 300 is inserted into the machining hole 230 .

The inserting step (S40) is a step of inserting the molded object 10 into the molding groove 330 formed in the lower core portion 300, and the second inserting step (S50) is a step of inserting the molding hole 230 of the holder portion 200. This is the step of inserting the upper core part 400 into the .

As described above, when the processing hole 230 of the holder part 200 is formed in a D-cut shape like the coupling protrusion 110 of the lower plate part 10 , the shape of the upper core part 400 is similar to that of the lower core part 300 . , and in such a case, the upper core part 400 may be configured not to rotate while being inserted into the machining hole 230. .

The pressing step ( S<b>60 ) is a step of pressing the upper part of the upper core part 400 to press the molded object 10 positioned between the lower core part 300 and the upper core part 400 .

On the other hand, in the method of manufacturing a microarray lens using a release type non-dicing mold for manufacturing a microarray lens according to the present invention, a second bonding of the spacer part 500 is performed after the first fixing step (S10). After the third fixing step of inserting the coupling protrusion 110 of the lower plate part 100 into the groove 520 and fixing the spacer body 510 to the upper part of the lower plate part 100, and the first inserting step (S30). , a fourth fixing step of inserting the sleeve part 600 into the machining hole 230 of the holder part 200 to be coupled and fixed to the protruding part 320 of the lower core part 300 may be further included.

As described above, according to the present invention, the press plate portion presses the upper core portion in a state in which the object to be molded is placed between the lower core portion and the upper core portion, so that the object to be molded is molded. Advantageously, by automating the production of the microlenses, the manpower required for the production of the microlenses is reduced.

Although various embodiments of the present invention have been presented and described above, the present invention is not necessarily limited thereto, and a person having ordinary skill in the technical field to which the present invention pertains may It is understood that various substitutions, modifications, and alterations are possible without departing from the technical spirit of the invention.

REFERENCE SIGNS LIST 10 molded object 100 lower plate portion 110 coupling projection 120 lift hole 200 holder portion 210 holder body 220 first coupling groove 230 machining hole 240 holder outlet 300 lower core portion 310 lower end member 320 protruding portion 330 molding groove 400 upper core portion 410 Head Member 500 Spacer Part 510 Spacer Body 520 Second Coupling Groove 530 Anti-rotation Groove 600 Sleeve Part 610 External Mold 611 Fixed Space 620 First Internal Mold 630 Second Internal Mold 640 Molding Space 700 Press Plate Part 800 Stopper Part 810 stopper outlet

Claims (10)

a lower plate part (100) formed in a disk shape and having a coupling protrusion (110) formed thereon;
A holder body (210), a first coupling groove (220) formed in the center of the holder body (210) and having a shape corresponding to the coupling protrusion (110), and a plurality of the holders. A plurality of machining holes (230) are formed along the circumference of the body (210) but are spaced apart from each other at regular intervals, and are coupled to the upper portion of the lower plate part (100). a holder portion (200) that
It has a shape and number corresponding to the machining hole (230) of the holder part (200), is inserted into the machining hole (230) of the holder part (200), and is fixed to the upper part of the lower plate part (100). a plurality of lower core portions (300) configured to:
It has a shape and number corresponding to the machining hole (230) of the holder part (200), and at least a part of it is configured to be inserted into the machining hole (230), but the lower core part (300) A releasable type non-dicing mold for manufacturing a microarray lens, comprising: an upper core part (400) positioned on the upper part and configured to be able to move up and down. The coupling protrusion (110) of the lower plate part (100) is
The holder part (200) is configured to be prevented from rotating when the holder part (200) is inserted into the first coupling groove (220) of the holder part (200) with a D-shaped cross section. A releasable type non-dicing mold for manufacturing the described microarray lens. A spacer part (500) coupled to the lower plate part (100) but positioned under the holder part (200) and configured to prevent rotation of the lower core part (300) is further included. be,
In the spacer part (500),
a spacer body (510);
a second coupling groove (520) formed in the center of the spacer body (510) and having a shape corresponding to the coupling protrusion (110);
The spacer body (510) is composed of a plurality of spacer bodies (510), which are spaced apart from each other in a circumferential direction, and formed in a shape corresponding to the lower shape of the lower core part (300). The releasable type non-dicing mold for manufacturing a microarray lens according to claim 1, comprising an anti-rotation groove (530) for preventing rotation of the lower core part (300). In the lower core part (300),
a lower end member (310) positioned below the lower core part (300) and configured to be inserted into the anti-rotation groove (530) of the spacer part (500);
The lower end member (310) of the lower core portion (300) is
4. The microarray according to claim 3, wherein the cross section is formed in a D-cut shape and configured to prevent the rotation of the lower core part (300) when inserted into the anti-rotation groove of the spacer part (500). Releasable type non-dicing mold for manufacturing lenses. In the lower core part (300),
a projecting part (320) projecting from the upper part of the lower core part (300);
One formed in the protruding part (320) and configured to form an aspherical surface of the molding (10) inserted between the lower core part (300) and the upper core part (400) or a plurality of aspherical molding grooves (330). The outer surface of the molding (10) that is combined with the protrusion (320) of the lower core part (300) and is inserted between the lower core part (300) and the upper core part (400) to be molded A releasable type non-dicing mold for manufacturing a microarray lens according to claim 5, further comprising a sleeve portion (600) configured to form a. The sleeve portion (600) includes:
an external mold (610) forming a fixed space (611) inside;
a first inner mold (620) formed in a ┐ shape and inserted into a fixed space (611) of the outer mold (610);
It is formed in a '└' shape corresponding to the '┐' shape of the first inner mold (620) and is inserted into the fixed space (611) of the outer mold (610). It is inserted in a symmetrical structure with the mold (620) so as to fill the fixed space (611) of the outer mold (610) and form a molding space (640) between the first inner mold (620) and the first inner mold (620). and a second inner mold (630) configured to: A molded object placed between the lower core part (300) and the upper core part (400) by pressing the upper core part (400) downward in the upper part of the upper core part (400) further comprising a press plate portion (700) for allowing (10) to be molded;
In the upper core part (400),
When inserted into the processing hole (230) of the holder part (200), it is configured to be exposed above the processing hole (230), but at least the processing hole (230) of the holder part (200) When formed in a size having a larger area than the press plate part (700) and pressed by the press plate part (700), the lower surface is configured to be in surface contact with the upper adjacent part of the processing hole (230) , a releasable non-dicing mold for manufacturing a microarray lens according to claim 1, comprising a head member (410) configured to limit the pressure range of the press plate part (700). . A molded object placed between the lower core part (300) and the upper core part (400) by pressing the upper core part (400) downward in the upper part of the upper core part (400) a press plate portion (700) allowing (10) to be molded;
Although it is positioned on the upper part of the lower plate part (100), the inner peripheral edge is configured to be in contact with the outer peripheral edge of the holder part (200) so that the holder part (200) is not exposed to the outside, and the lower part a stopper part (800) configured to limit the pressure range of the press plate part (700) by protruding from the plate part (100) above the holder part (200); A releasable type non-dicing mold for manufacturing the microarray lens according to claim 1, further comprising: In a method for manufacturing a microarray lens using a releasable type non-dicing mold for manufacturing the microarray lens according to any one of claims 1 to 9,
a first fixing step (S10) of fixing the lower plate part (100) to the workbench;
The coupling protrusion (110) of the lower plate part (100) and the first coupling groove (220) of the holder part (200) are combined to fix the holder body (210) to the upper part of the lower plate part (100). 2 fixing step (S20);
a first insertion step (S30) of inserting the lower core portion (300) into the machined hole (230) of the holder portion (200);
A loading step (S40) of loading the molded object (10) into the molding groove (330) formed in the lower core portion (300);
a second inserting step (S50) of inserting the upper core part (400) into the machined hole (230) of the holder part (200);
a pressurizing step (S60) of pressurizing the upper part of the upper core part (400) to pressurize the molding object (10) located between the lower core part (300) and the upper core part (400); A method for manufacturing a microarray lens using a releasable type non-dicing mold for manufacturing a microarray lens, characterized by comprising:

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