KR100964579B1 - Polarized lens manufacturing method - Google Patents

Abstract

The present invention relates to a method for manufacturing a polarizing lens that can support a polarizing film without the need for a separate gasket mold and can adjust the thickness of the processed surface. The upper jig is placed on the lower jig, the polarizing film is placed on top of the lower jig, and the upper jig is placed on the upper part of the lower jig so that the polarizing film is supported, and the upper upper jig moves up and down by a pneumatic device. Next, the glass and the lower mold and the outer surface of the upper and lower jig are integrated by taping the heat-resistant masking tape with a taping device, and the lower space formed by contacting the polarizing film, the lower jig and the lower glass mold, and the upper glass mold. , The upper jig, the heat-resistant masking tape and the upper and lower parts in the upper space generated by contact with the polarizing film And a through via the process of solidification after the injection of the raw material liquid for producing a polarizing lens configured to produce a polarizing lens; Instead of the integrated gasket mold, the upper and lower jig can support the polarizing film, and the glass upper mold can be spaced apart from the upper jig, thereby controlling the thickness of the processed surface.

Description

Polarized lens manufacturing method

The present invention relates to a method of manufacturing a polarizing lens, and more particularly, to a method of manufacturing a polarizing lens capable of supporting a polarizing film without requiring a separate gasket mold and adjusting a thickness of a processed surface.

In general, a polarizing lens is typically used a polymer resin polarizing lens using a glass and a polymer synthetic resin as a main raw material.

At this time, the production of a polarized lens for manufacturing a polymer synthetic eyeglass lens is producing a lens that is practically impossible.

Looking at such a conventional manufacturing method of the polarizing lens, it is manufactured by the method of adhering the polarizing film on the front and rear of the CR39 lens manufactured by the conventional casting method.

However, this method is heavily influenced by adhesives and polarizing films, and has a limitation of mass production due to a decrease in production time and production efficiency.

In other words, the polarized lens that maximizes the refraction of refraction from the various reflectors that can not be blocked by the sunglasses, the polarized dazzling reflected interference light entering the field of view is blocked by the vertical polarizing film from the lens, more clear and the view is blurred due to reflection In addition to the shortcomings in the method of mass distribution, the polarizing film is adhered to the spectacle lens surface, which makes it difficult to accurately place the polarizing film in the middle of the lens, and the polarizing film is easily damaged by external impact. Due to this, there is a disadvantage in that the function as glasses falls.

In addition, a polarized lens using a PC lens is a non-lensable lens, which adds only a polarization function to the simple sunglasses effect, and is manufactured by an injection method, not a casting method, and has a limitation in reference to a spectacle lens for correcting vision of a person.

That is, because it is manufactured by injection, there is a disadvantage in that it is inconvenient to process according to the image disturbance phenomenon and vision.

In order to solve this problem, the present applicant has developed the Republic of Korea Patent Application No. 2003-57617.

By the way, in the case of the above-mentioned line application, since the ring used does not support the entire end edge while supporting the entire edge of the polarizing film, there is a problem in which wrinkles are sometimes generated in the polarizing film without attention. .

In addition, when manufacturing a different thickness of the processing surface has to be produced by replacing the new gasket mold, there is a problem in that the inconvenience and cost of having to manufacture a separate mold according to the type of lens.

Accordingly, the present invention has been made in view of the problems of the prior art as described above. Instead of the gasket mold of the integrated type, the polarizer film can be supported by the upper and lower jig, and the glass upper mold is spaced apart from the upper jig to adjust the spacing of the processed surface. An object of the present invention is to provide a polarizing lens manufacturing method capable of adjusting the thickness.

In addition, another object of the present invention is to close the space between the glass, the lower mold and the upper, lower jig with a tape so that the liquid raw material of the polarizing lens does not leak to make a high quality polarizing lens in a stable state. .

In order to achieve the above object, the present invention is a method of manufacturing a polarizing lens, the lower jig is placed on the upper portion of the glass lower mold moving up and down by a pneumatic device, and the polarizing film is placed on the upper part of the lower jig, The upper jig is placed on the upper part of the lower jig so that the polarizing film is supported, and the upper part of the upper jig is placed with a glass upper mold moving up and down by a pneumatic device, and then taping on the outer peripheral surfaces of the glass, lower mold and upper and lower jig. Tape and integrate the heat-resistant masking tape, and the heat-resistant masking is integrated into the lower space formed by contacting the polarizing film, the lower jig and the lower glass mold, and the upper space formed by contacting the upper glass mold, the upper jig and the polarizing film. Through the tape and the upper and lower jig to inject the liquid raw material for manufacturing the polarizing lens, and then solidify Provides a polarizing lens manufacturing method configured to manufacture a polarizing lens through a process.

As described above, the present invention can support the polarizing film with the upper and lower jig instead of the integral gasket mold, and the glass upper mold can be separated from the upper jig to control the thickness of the processed surface.

In addition, the glass, the lower mold and the space between the upper and lower jig is closed with a tape to prevent the liquid raw materials of the polarizing lens from leaking has the effect of producing a high-quality polarizing lens in a stable state.

The preferred embodiment of the present invention as described above will be described in detail based on the accompanying drawings.

As shown in Figures 1 to 3 and 12, the present invention is a preparation process for a method of manufacturing a polarizing lens is as follows.

First, the lower jig 40 is placed on the upper portion of the glass lower mold 10 that moves up and down by a pneumatic device not shown in the drawing.

In this case, the lower jig 40 is configured to extend upward vertical surface 42 to form an obtuse angle after forming an upward inclined surface 41 while proceeding from the inner lower side portion to the outer side in a ring shape.

Subsequently, an upward vertical surface 42 extends to the upwardly inclined surface 41 to form a cross-sectional shape in a 'b' shape, and the upwardly inclined surface 41 and the upwardly vertical surface 42 have an obtuse angle of more than 90 °. Is formed.

In addition, a circumference of the lower jig 40 may further include one injection hole 43 penetrating through a thickness thereof.

Thereafter, the polarizing film 30 is placed on the lower jig 40, and the upper jig 20 is placed on the upper jig 40 so that the polarizing film 30 is supported.

At this time, the upper jig 20 is configured to extend the downward inclined surface 22 to form an obtuse angle after forming a horizontal surface 21 to proceed a portion of the outer upper side in the form of a ring.

Thereafter, the downward inclined surface 22 is removed to extend on the horizontal surface 21 to form a cross-sectional shape in a 'b' shape.

That is, the horizontal surface 21 and the downward inclined surface 22 is formed in the form of an obtuse angle of more than 90 °.

The circumference of the upper jig 20 may further include one injection hole 23 penetrating through a thickness thereof.

As shown in FIG. 4, in another embodiment, the lower jig 40 extends toward the center of the inner end 44 to support the upwardly inclined surface 41 on which the upper surface of the polarizing film 30 is supported. It can also be configured to increase the area.

At this time, by increasing the support area of the upward inclined surface 41 of the lower jig 40 is to prevent flow when injecting the raw material 71 of the shaking or liquid.

As shown in FIG. 5, in another embodiment, the lower jig 40 may constitute an upward curvature surface 45 in which the upwardly inclined surface 41 forms the same curvature as the curvature of the polarizing film 30.

Here, the upper surface of the polarizing film 40 is in close contact with the curvature of the downward curvature surface 15 is configured to be supported in a stable state.

As shown in Figures 1 to 3 and 12, the upper portion of the upper jig 20, the glass upper mold 50 that moves up and down by a pneumatic device is placed.

Subsequently, the taper 60 for heat-resistant masking is integrated on the outer circumferential surfaces of the glass and lower molds 50 and 10 and the upper and lower jigs 20 and 40 by a taping device.

That is, the glass 60 and the lower mold 50 and 10 and the polarizing film 30 are taped to the upper and lower jig 20 and 40 while the heat-resistant masking tape 60 is taped to maintain the tapering state. 30) do not flow.

As shown in Figure 6, the lower jig 40 and the upper jig 20 may be configured in an integral form.

That is, the integrated jig 80 in the form of combining the lower jig 40 and the upper jig 20 integrally from the inner side to the outer side forms the first inclined surface 81.

Thereafter, the upward vertical surface 82 extends to an obtuse angle with respect to the first inclined surface 81.

In addition, the first inclined surface 81 is spaced apart from each other to form a horizontal surface 83 that proceeds from the inner side to the outer side.

In addition, the second inclined surface 85 forms an obtuse angle with the horizontal surface 83 so as to contact the upward vertical surface 82.

The integrated jig 80 forms a second inclined surface 85 that forms an obtuse angle with the horizontal surface 81 so as to contact the upward vertical surface 82 to form the groove 84.

In addition, a pair of upper and lower portions or one or more injection holes 86 are formed at upper and lower portions, respectively, based on the groove 84.

Here, Figure 6 (a) is a state in which no injection hole 86, (b) is a state in which a pair of injection holes 86 are formed, (c) and (d) are injection holes 86 Each of these embodiments shows the upper and lower embodiments.

In addition, the upper and lower portions of the integrated jig 80 are respectively in contact with the glass and the mold 50, 10, and then tape the heat-resistant masking tape 60 on the outer peripheral surface.

As illustrated in FIGS. 7 to 9, the glass upper mold 50 may be configured to adjust the thickness of the processing surface 72 of the polarizing lens 70 by adjusting a distance from the upper jig 20. .

10 and 11, the polarizing film 30 has a dome shape which is raised to the lower portion, and the edge 31 is formed with a groove 32 which enters the inside in a position facing each other.

As shown in FIG. 12 and FIG. 16, a method of manufacturing the polarizing lens by another method is as follows.

The upper part 91 is short and the upper part 91 which moves up and down by the pneumatic device is short and the lower part 93 which forms the inclined surface 92 downhill from the outer side to the inner side protrudes toward the center for a long time. The jig 90 forming the support groove 94 in the shape is placed so that the lower end 93 contacts the upper portion of the glass lower mold 10.

Then, the polarizing film 30 is positioned in the support groove 94 through the upper end 91 of the jig 90 and placed to be supported by the inclined surface 92.

In addition, the upper surface 91 of the jig 90 by the pneumatic device to move the upper and lower glass upper mold 50 is placed in the glass, the lower mold 50, 10 and the outer peripheral surface of the jig 90 The tape 60 for heat-resistant masking is integrated with a taping apparatus to prepare a polarizing lens 70.

Referring to the method of manufacturing the polarizing lens 70 using the preparation process of the present invention configured as described above are as follows.

As shown in FIG. 13, the glass lower mold 10, the lower jig 40, the polarizing film 30, the upper jig 20, and the glass upper mold 50 are sequentially stacked in close contact with each other.

In such an assembled state, it is important that the shape of the polarizing film 30 is not changed so that the curved surface of the polarizing film 30 is not disturbed in order to prevent the flow of the polarizing film 30 when the polarizing film 30 is installed. Please assemble it.

In addition, when the inner end 44 of the lower jig 40 is formed to be long and the area of the upward inclined surface 41 is increased, the stable supporting force of the polarizing film 30 is produced in order to manufacture the polarizing lens 70 having a large area. Can be used when securing is required.

In addition, when the downward curvature surface 45 is formed on the lower jig 40, the polarizing film 30 is closely adhered to rotate the raw material 71 of the liquid for injection or when the polarizing film 30 is injected. ) Can fundamentally block the flow of

That is, the polarization film 30, the lower jig 40, the lower glass mold 10 is in contact with the lower space (a) is generated.

Then, the upper glass mold 50, the upper jig 20, the polarizing film 30 is in contact with the upper space (b) is generated.

On the other hand, the polarizing film 30 has a shape of a dome that is raised to the lower side of the edge 31 is formed with a groove 32 is entered into the inner side facing each other in one of the upper space (b) and the lower space (a) The raw material 71 of the injected liquid is allowed to flow to the upper and lower spaces (a) and (b).

Next, by sealing the tape 60 for heat-resistant masking on the outer circumferential surface of the lower glass mold 10, the lower jig 40, the polarizing film 30, the upper jig 20, the upper glass mold 50. .

Thereafter, the liquid raw material 71 for manufacturing the polarization lens 70 is injected through the heat-resistant masking tape 60 and the upper and lower jig 20, 40.

At this time, the upper and lower jig 20, 40 is used that the injection holes 43, 23 is formed and the raw material 71 of the liquid in the state that the injection holes 43, 23 is located in the upper position Is injected, and injected through the heat-resistant masking tape 60 at the time of injection.

That is, the glass lower mold 10, the lower jig 40, the polarizing film 30, and the upper jig 20, which are taped with the heat-resistant masking tape 60 so that the injection holes 43 and 23 are positioned on the upper portion. , The glass upper mold 50 is rotated as a whole.

For example, when the raw material 71 of the liquid is injected through the injection hole 43 by using a separate injection device (not shown), the grooves of the polarizing film 30 are simultaneously filled in the lower space a. Filled while flowing to the upper space (b) through (32).

At this time, the air present in the upper and lower spaces (a) and (b) is discharged through the injection hole 23 while filling the raw material 71 of the liquid to the upper and lower spaces (a) and (b).

The raw material is sufficiently solidified in the state of supplying the raw material 71 in a series of liquid phases, and then the polarizing lens is removed by removing the glass and lower molds 50 and 10 and the upper and lower molds 50 and 10. 70 is manufactured.

As shown in FIG. 14, when the polarizing lens 70 is manufactured by using the integrated jig 80, the polarizing lens 70 is polarized into the groove 84 generated by the upward vertical plane 82 and the second inclined plane 85. After inserting the edge 31 of the film 30, the upper and lower glass and lower molds 50 and 10 are brought into close contact with each other, and then the tape 60 for heat-resistant masking is taped to the outer circumferential surface. After injecting the liquid raw material 71 through the injection hole 86 in a state of being rotated so as to be positioned thereon, and solidifying the glass material, the lower molds 50 and 10 and the upper and lower molds 50 and 10 are solidified. By removing the polarizing lens 70 is manufactured.

As shown in FIG. 15, when the thickness of the processing surface 72 of the polarizing lens 70 is modified, the glass lower mold 10, the lower jig 40, the polarizing film 30, and the upper jig are formed. In the state in which the 20 is laminated, the glass upper mold 50 is spaced apart by the thickness of the processing surface 72 to be manufactured by the upper jig 20.

At this time, the upper and lower jig 20, 40 is used that the injection hole 23, 43 is not formed.

Thereafter, the tape 60 for heat-resistant masking is taped along the outer circumferential surfaces of the glass and lower molds 50 and 10 and the upper and lower jigs 20 and 40 so that the space is closed.

In addition, injection holes 61 and 62 penetrating a thickness are formed in upper and lower portions of the heat-resistant masking tape 60 positioned between the glass upper mold 50 and the upper jig 20.

In this case, when the raw material 71 of the liquid is injected through an injection hole 62 of the injection holes 61 and 62 by using a separate injection device (not shown), it is filled in the upper space b. At the same time it is filled while flowing into the lower space (a) through the groove 32 of the polarizing film 30.

At this time, the air present in the upper and lower spaces (b) and (a) is discharged through the injection hole 62 while the liquid raw material 71 is filled to the upper and lower spaces (b) and (a) to solidify Next, the polarized lens 70 is manufactured by removing the glass and lower molds 50 and 10 and the upper and lower molds 50 and 10.

As shown in FIG. 16, the upper end 91 of the lower portion of the glass lower mold 10 moving up and down by the pneumatic device is short, and the lower end 93 of which the inclined surface 92 is formed on the inner side from the outside to the inner side. The long jig 90 protruding toward the center to form the 'c' shaped support groove 94 is placed so that the lower end 93 is in contact with the upper portion of the lower glass mold 10.

Then, the polarizing film 30 is positioned in the support groove 94 through the upper end 91 of the jig 90 and placed to be supported by the inclined surface 92.

Subsequently, the glass upper mold 50, which is moved up and down by a pneumatic device, is placed on the upper end 91 of the jig 90, and then on the outer circumferential surfaces of the glass, lower mold 50, 10 and the jig 90. The tape 60 for heat-resistant masking is taped and integrated by a taping apparatus.

Next, the lower space a generated by the polarizing film 30, the jig 90, the glass lower mold 10 is in contact with the glass upper mold 50, the jig 90, the polarizing film 30 After injecting the liquid raw material 71 through the injection hole 95 of the heat-resistant masking tape 60 and the jig 90 into the upper space b formed by the contact, and solidifying the glass-like bottom The polarization lens 70 is manufactured by removing the molds 50 and 10 and the upper and lower molds 50 and 10.

In general, it can be seen that the polarizing lens 70 manufactured by the method of manufacturing the polarizing lens is embedded in the polarizing film 30 impregnated therein.

The manufactured polarizing lens 70 is used as a lens such as sunglasses having a degree of power by processing the surface or the end for power again.

As a result, since the polarizing film 30 is manufactured in a state of being embedded in the polarizing lens 70, there is no fear of damaging the polarizing film 30, and the efficacy of the polarizing film 30 is inferior even after long-term use. It is possible to completely solve the problems such as.

In addition, when manufacturing different polarization lenses 70 according to the thickness of the processing surface 72, it can be manufactured by simply adjusting the spacing between the upper jig 20 and the glass-shaped mold 50.

Thus, by forming a mold by taping the heat-resistant masking tape 60 without using a separate gasket mold, the polarizing lens 70 can be simply manufactured, and the supply cost due to mass production and mass production can be reduced.

In addition, the processing surface 72 may be manufactured in various thicknesses so that a separate mold according to the thickness of the processing surface 72 is not required.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and is not limited to the spirit of the present invention. Various changes and modifications can be made by those who have

1 is an exploded bottom perspective view of a component for manufacturing a polarizing lens according to the present invention;

2 is a perspective view of the combination of FIG.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a cross-sectional view showing another embodiment of the upper jig;

5 is a cross-sectional view showing another embodiment of the upper jig;

6 is a cross-sectional view of various embodiments of the integrated jig;

7 is an exploded perspective view of a component for manufacturing a polarizing lens by adjusting the processing surface;

8 is a perspective view of the combination of FIG.

9 is a cross-sectional view taken along line B-B of FIG. 8;

10 is a cross-sectional view of the polarizing film,

11 is a plan view of the polarizing film,

12 is a cross-sectional view showing an integrated jig,

13 is a process chart of manufacturing a polarizing lens using the polarizing lens manufacturing method of FIG.

14 is a process chart of manufacturing a polarizing lens by using a method of manufacturing a polarizing lens with an integrated jig.

15 is a process chart of manufacturing a polarizing lens using a polarizing lens manufacturing method by adjusting the thickness of the processing surface;

FIG. 16 is a process chart of manufacturing a polarizing lens using the polarizing lens manufacturing method with the integrated jig of FIG. 12.

<Description of Symbols for Main Parts of Drawings>

10: glass lower mold 20: upper jig

21: horizontal plane 22: downward slope

23: injection hole 30: polarizing film

31: edge 32: groove

40: lower jig 41: upward slope

42: upward vertical plane 43: injection hole

50: upper glass mold 60: heat-resistant masking tape

70 polarizing lens 71 liquid raw material

72: machining surface 80: integral jig

81: first inclined plane 82: upward vertical plane

83: horizontal plane 84: groove

85: second inclined surface 86: injection hole

90: jig 91: top

92: slope 93: lower

94: support groove

a: lower space b: upper space

Claims (14)

In the method of manufacturing a polarizing lens, The lower jig 40 is placed on the upper portion of the glass lower mold 10 which is moved up and down by a pneumatic device. After placing the polarizing film 30 on the lower jig 40, the upper jig 20 is placed on the upper side of the lower jig 40 to support the polarizing film 30, The upper surface of the upper jig 20, the upper and lower molds 50, which move up and down by a pneumatic device is placed therein, and then the outer peripheral surface of the glass, lower mold 50, 10 and the upper, lower jig 20, 40 Taping the tape 60 for heat-resistant masking with a taping device to integrate The lower space a generated by the polarizing film 30, the lower jig 40, the glass lower mold 10 is in contact with the glass upper mold 50, the upper jig 20, the polarizing film 30 Injecting a liquid raw material 71 for manufacturing the polarizing lens 70 through the heat-resistant masking tape 60 and the upper and lower jig 20, 40 in the upper space (b) to be produced by contact And a polarizing lens manufacturing method configured to manufacture a polarizing lens 70 through a solidification process. According to claim 1, wherein the lower jig 40 is configured to extend upward vertical surface 42 to form an obtuse angle after forming an upwardly inclined surface 41 to the inner lower side portion in a ring form from the inside to the outside Polarizing lens manufacturing method characterized in that. The circumference of the lower jig 40 further includes one injection hole 43 penetrating a thickness thereof. Polarizing lens manufacturing method characterized in that the circumference of the upper jig 20 further comprises a single injection hole (23) passing through the thickness. The method of claim 1, wherein the upper jig 20 is configured to extend the downward inclined surface 22 to form an obtuse angle after forming a horizontal surface 21 to advance a portion of the outer upper side in the form of a ring from the outside to the inside. A polarizing lens manufacturing method characterized by the above-mentioned. In the method of manufacturing a polarizing lens, The upper part 91 is short and the upper part 91 which moves up and down by the pneumatic device is short and the lower part 93 which forms the inclined surface 92 downhill from the outer side to the inner side protrudes toward the center for a long time. 'The jig 90 forming the support groove 94 of the shape is placed so that the lower end 93 in contact with the upper portion of the glass lower mold 10, The polarizing film 30 is inserted into the support groove 94 through the upper side 91 of the jig 90, and placed to be supported by the inclined surface 92. A glass upper mold 50, which is moved up and down by a pneumatic device, is placed on the upper end 91 of the jig 90, and then a taping device is formed on the outer circumferential surfaces of the glass, lower mold 50, 10 and the jig 90. Tape and heat-resistant masking tape 60 to integrate The lower space a generated by the polarizing film 30, the jig 90, and the lower glass mold 10 is in contact with the glass upper mold 50, the jig 90, and the polarizing film 30. Injecting the liquid raw material 71 for manufacturing the polarizing lens 70 through the injection hole 95 of the heat-resistant masking tape 60 and the jig 90 into the upper space (b) to be produced and solidified Polarizing lens manufacturing method configured to manufacture a polarizing lens 70 through a process. According to claim 1 or claim 3, wherein the lower jig 40 is extended to the inner end 44 toward the center to increase the support area of the upwardly inclined surface 41, the upper surface of the polarizing film 30 is supported Polarizing lens manufacturing method characterized in that configured to. The polarizing lens of claim 1 or 3, wherein the lower jig 40 constitutes an upward curvature surface 45 in which the upwardly inclined surface 41 forms the same curvature as the curvature of the polarizing film 30. Manufacturing method. According to claim 1, wherein the lower jig 40 and the upper jig 20 extends from the inside to the outside in an integral form to form the first inclined surface 81, the upward vertical surface 82 to form an obtuse angle And forming a horizontal plane 83 that is spaced apart from the first inclined plane 81 so as to face from the inside to the outside thereof, and then forms an obtuse angle with the horizontal plane 81 so as to contact the upward vertical plane 82 to form the groove 84. A method of manufacturing a polarized lens, characterized in that to form an integral jig (80) by forming a second inclined surface (85). The method of claim 8, wherein the jig 80 is configured to further include a pair of injection holes 86 through the thickness of the upper and lower portions or one of the upper and lower portions, respectively, based on the groove 84 Polarizing lens manufacturing method characterized in that. The method of claim 1, wherein the glass upper mold 50 is manufactured by adjusting the distance between the upper jig 20 and the thickness of the processing surface 72 of the polarizing lens 70, characterized in that the polarizing lens manufacturing Way. delete delete delete delete

Images