JP4076469B2 - GLASSES LENS, ITS MANUFACTURING METHOD, AND GLASSES - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spectacle lens provided with a decorative portion in which a decorative body is embedded in the lens, a method for manufacturing the spectacle lens, and spectacles using the spectacle lens.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, spectacles in which a frame portion, a temple portion, or a brittle portion are decorated are well known. However, there are not so many examples in which some decoration is applied to the lens itself. This is because it is difficult to provide some foreign matter on the lens itself in terms of the function as spectacles, it is difficult to process the lens, and there is little necessity.
[0003]
However, in recent years, plastic lenses are often used as spectacle lenses, and demands from the fashion or design aspect of the spectacles are diversified and are at a high level. For this reason, an attempt has been made to enhance the decorative effect by forming a shallow groove on the lens end face and mixing a pigment or the like in the adhesive layer provided there (see Patent Documents 1 and 2). .
[Patent Document 1]
Japanese Utility Model Publication No. 62-122894 [Patent Document 2]
Japanese Patent Laid-Open No. 2000-347140
[Problems to be solved by the invention]
However, the above-mentioned conventional device having a shallow groove on the lens end face certainly has a decoration on the lens end face, so it can be said that the lens itself is decorated. However, since ornaments such as pigments are only arranged in the shallow groove on the lens end face, there is only an effect that the lens is bordered by the pigment, and the lens itself is large in design. It couldn't be said before that there were decorations that influenced.
[0005]
The present invention has been made under the background described above, and provides a spectacle lens, a manufacturing method thereof, and spectacles using the spectacle lens capable of remarkably expanding the design range of the spectacles as a whole. Objective.
[0006]
[Means for Solving the Problems]
As means for solving the above-mentioned problem, the first means is:
A spectacle lens provided with a decorative portion near the edge of the lens,
The decorative portion has a lens region having a predetermined distance or more from the edge of the lens to the optical axis side so that it can be clearly seen that the spectacle lens is disposed in the transparent region of the lens when viewed from the front. The eyeglass lens is characterized in that a decorative body is provided therein or is decorated.
The second means is
The decorative portion is formed integrally with the lens by embedding a decorative body in a deep groove-shaped slit portion formed from the edge end surface of the spectacle lens toward the optical axis direction. 1 is a spectacle lens according to the first means.
The third means is
The slit portion has a depth dimension larger than its width dimension and is formed from the edge end surface of the spectacle lens toward the optical axis direction substantially along the front and back surfaces of the lens. The eyeglass lens according to the second means.
The fourth means is
The decorative body is a spectacle lens according to the second or third means, wherein the decorative body has a thin plate shape.
The fifth means is
The decorative body is a spectacle lens according to any one of the first to fourth means, wherein a decorative part formed in a predetermined decorative shape is embedded in a transparent resin layer. .
The sixth means is
The decorative part is a spectacle lens according to a fifth means, wherein the decorative part is a thin plate part formed in a thin plate shape.
The seventh means is
The decorative part is a spectacle lens according to a fifth or sixth means, wherein a wettability improving process is performed in advance.
The eighth means is
An eyeglass characterized by using the eyeglass lens according to any one of the first to seventh means.
The ninth means is
The spectacle lens has a deep groove-like slit portion that has a depth dimension larger than its width dimension and is formed along the front and back surfaces of the lens from the edge end surface of the spectacle lens toward the optical axis direction,
Put a transparent adhesive in this slit,
Insert and decorate decorative body parts into the slit part,
By removing the part protruding from the lens end face of the decorative body parts,
A spectacle lens manufacturing method characterized in that a spectacle lens in which a decorative portion formed by embedding the decorative body in a lens and formed integrally with the lens is provided in the vicinity of the edge of the lens is obtained.
The tenth means is
The spectacle lens has a deep groove-like slit portion that has a depth dimension larger than its width dimension and is formed along the front and back surfaces of the lens from the edge end surface of the spectacle lens toward the optical axis direction,
Put decorative parts that have been treated with a transparent resin and wettability in advance in this slit,
Curing the transparent resin to form a decorative body,
A spectacle lens manufacturing method characterized in that a spectacle lens in which a decorative portion formed by embedding the decorative body in a lens and formed integrally with the lens is provided in the vicinity of the edge of the lens is obtained.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
1 is a diagram showing a spectacle lens and spectacles according to a first embodiment of the present invention, FIG. 2 is a partially enlarged view of FIG. 1, FIG. 3 is a sectional view taken along line III-III in FIG. 2, and FIG. FIG. 5 is an explanatory view of a processing method of the slit portion, FIG. 6 is an enlarged view of the slit portion, FIG. 7 is an explanatory view of the slit portion, and FIGS. FIG. 14 is an explanatory view of attachment of decorative body parts, and FIG. 15 is an explanatory view of a method of forming a decorative portion according to the second embodiment. Hereinafter, a spectacle lens and spectacles according to an embodiment will be described with reference to these drawings.
[0008]
(First embodiment)
In FIG. 1, the spectacles according to this embodiment are examples in which the present invention is applied to so-called edgeless spectacles, and are directly fixed to the left and right spectacle lenses 1, 1 ′ and the left and right spectacle lenses 1, 1 ′, respectively. Armor 2, 2 ′, a bridge 3 that is directly fixed to the right and left spectacle lenses 1, 1 ′ and couples and fixes both, and left and right nose pads 4, 4 ′ attached to the bridge 3.
[0009]
The spectacle lenses 1, 1 ′ are provided with decorative portions 10, 10 a and 10 ′, 10 ′ a, respectively. The decorative portions 10 and 10 'and the decorative portions 10a and 10'a are the same except that the left and right are reversed. Further, the decorative portions 10 and 10a and the decorative portions 10 ′ and 10′a have the same basic structure except that they are provided in different parts and shapes. Therefore, below, the decoration part 10 is demonstrated in detail and other description is abbreviate | omitted.
[0010]
As shown in FIGS. 3 and 4, the decorative portion 10 has a depth dimension larger than its width dimension and is formed from the edge end face of the spectacle lens toward the optical axis direction substantially along the front and back surfaces of the lens. The decorative body 100 is embedded in the slit portion 11 having a deep groove shape and bonded and fixed.
[0011]
The slit portion 11 has a depth d of about 3 mm and a width t of about 0.4 mm. In addition, the dimension of this slit part 11 is selected from the range whose d is about 2-10 mm and t is about 0.1-1 mm. For example, as shown in FIG. 5, the slit portion 11 is processed by fixing the spectacle lens 1 with the total mold holding jig 5 and moving the metal saw 6 in parallel. This processing may be performed vertically from the lens side with a thin end mill. In this case, the lens may be fixed by directly using a holder fixed to the lens for holding the lens when the lens is trimmed.
[0012]
As shown in FIG. 7, when the lens curve near the edge of the spectacle lens 1 is large, the slit portion 11 is processed and formed along the lens curve. That is, for example, when a surface substantially parallel to the lens surface in the vicinity of the edge of the spectacle lens forms an angle θ with respect to a direction perpendicular to the optical axis, the depth direction of the slit portion 11 is also a direction perpendicular to the optical axis. Is formed at an angle θ.
[0013]
The decorative body 100 has substantially the same shape as the slit portion 11, and the thickness thereof is substantially the same as the width of the slit portion 11, and the thickness is about 0.4 mm. The decorative body 100 is decorated in the transparent resin layer 110. The thin plate part 120 as a part is embedded. In the decorative body 100, a transparent adhesive is put in the slit portion 11 in advance, and then the decorative body 100 is inserted into the slit portion 11 and cured. As a result, as shown in FIG. 4, a thin adhesive layer 130 is formed between the decorative body 100 and the slit portion 11, and the decorative body 100 is embedded and fixed to the spectacle lens 1 integrally with the spectacle lens 1. Is done.
[0014]
The resin layer 110 is made of, for example, a resin such as epoxy. This resin layer is desirably made of a material having a refractive index close to that of the lens in order to maintain a sense of unity with the lens material. Moreover, the thin plate part 120 as a decorative part is formed by, for example, forming a 24-gold thin plate having a thickness of 0.1 mm into a substantially deformed S-shape or the like. When this thin plate part 120 is subjected to plasma cleaning to improve wettability, bubbles are less likely to adhere and the adhesion strength is improved. The same effect can be obtained by applying a surfactant to the thin plate part 120. As the thin plate part 120, other metals such as silver, platinum, rhodium, and other thin plates of these alloys can be used. Moreover, a resin thin plate or a resin film (for example, a positive film or a color film on which a pattern is imprinted) can be used. Furthermore, as a decorative part embedded in the resin layer 110, any decorative part can be used instead of the thin plate part 120. For example, jewelry, fiber, or paper may be used.
[0015]
The decorative body 100 is manufactured as follows, for example. That is, as shown in FIG. 8, a transparent resin 112 is applied to a resin film 111, and a thin plate part 120 is embedded therein, defoamed, and cured. Alternatively, the resin 112 is applied to the resin film 111, the thin plate part 120 is placed thereon, and the resin 112 is further applied onto the thin plate part 120 and then cured. After curing, the resin 112 is cut into the required shape. When cutting off, either the film 111 may be left attached or the film 111 may be peeled off. This method facilitates vacuum defoaming because bubbles escape upward. As the film 111 to be used, for example, PET can be used. If the film 111 has transparency, the raw material will not be specifically limited. It may be colored. For example, epoxy can be used as the resin 112, but the material is not particularly limited as long as it has transparency. It may be colored. In order to reduce white turbidity, it is desirable to use a resin having a refractive index close to that of the lens material.
[0016]
As another method, as shown in FIG. 9, a resin 112 is applied to a film 111, and a thin plate part 120 is embedded therein. Evict (similar to how to create a slide). After curing, the film is cut into the required shape. According to this method, the thickness of the decorative body 100 can be easily controlled.
[0017]
Furthermore, as another method, as shown in FIG. 10, FIG. 11 and FIG. 12, a mold part 7 is used in which a large number of mold parts 71 made of a difficult-to-adhere material such as polyacetal are formed. A transparent resin having a low viscosity is poured into 71 and cured while vacuum degassing. Thereby, the thin plate-shaped decorative body part 1000 in which the thin plate part 120 is embedded from one end portion is obtained. In this example, the mold part 71 is made of polyacetal. However, the material of the mold is not particularly limited as long as the potting resin and the adhesiveness are low. Generally, polyethylene or the like has low adhesiveness.
[0018]
According to this method, it is not necessary to cut out the resin after curing into a required shape, and the thin plate part 120 can be potted at a predetermined place of the mold. Moreover, since the upper part is open | released, a vacuum degassing can be performed easily. Furthermore, since the thickness of the recess is constant, the thickness of the decorative body 100 can be easily controlled.
[0019]
As shown in FIG. 14, the decorative body part 1000 obtained in this way is inserted into the slit portion 11 (see FIGS. 4 and 5) formed in the spectacle lens 1 by the metal saw 6 and fixed by adhesion. That is, a transparent adhesive is filled or applied in the slit portion 11, and the portion where the thin plate part 120 of the decorative body part 1000 is embedded is inserted so as to be disposed in the slit portion 11, defoaming, etc. After performing, the adhesive is cured. Thereafter, the portion protruding from the slit portion 11 is removed with a cutting tool or the like, and end face polishing is performed as necessary to obtain the spectacle lens 1 on which the decorative portion 10 is formed.
[0020]
In the spectacle lens and the spectacles according to the embodiment described above, a decorative body part 1000 including a portion that becomes the decorative body 100 having substantially the same thickness as the width of the slit portion 11 is created in advance and inserted into the slit portion 11. Thus, there is no fear that bubbles are generated and left during the curing of the adhesive or the resin, leading to a decrease in the adhesion strength of the resin or a decrease in aesthetics. In addition, the volume of the adhesive and the resin may decrease during curing, but the influence is small because the amount of the adhesive and the resin for bonding and fixing the decorative body parts is small. Further, the arrangement position of the thin plate part 120 can be easily and accurately arranged at the planned position. In this embodiment, the decorative body 100 has a thickness substantially the same as the width of the slit portion 11, but the present invention is not limited to this, and the decorative body 100 may be thinned and filled with resin or adhesive accordingly. Good.
[0021]
(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the first embodiment, an example in which a decorative body previously formed into a thin plate shape is embedded in the slit portion 11 has been described. However, in the second embodiment, the thin plate part 120 is directly attached without performing the procedure for forming the thin plate shape. This is an example of embedding in the slit portion 11. The method of forming the slit portion 11 in the spectacle lens 1 is the same as that in the first embodiment, and the thin plate part 120 to be used is also the same.
[0022]
First, the thin plate part 120 embedded in the slit part 11 is prepared, and the wettability improvement process for improving wettability is performed. In this embodiment, the wettability improving process is performed by irradiating the surface of the thin plate part 120 with plasma to clean and modify the surface (hereinafter referred to as plasma process in this specification). This plasma treatment is more preferable because it can be carried out in a short time by a commercially available plasma irradiation apparatus and the adhesion strength with the resin can be improved. In addition, the wettability improvement processing method is not particularly limited to this, and for example, a method of applying a surfactant to the thin plate part 120 may be used.
[0023]
Next, the spectacle lens 1 whose interior of the slit portion 11 has been cleaned in advance is placed so that the bottom of the slit portion 11 is substantially horizontal, and the thin plate part 120 that has been subjected to the wettability improving process is placed in the slit portion 11, In this state, the resin 112 is injected into the slit portion 11. In this embodiment, both sides of the slit portion 11 are open, but since the slit width is narrow, the injected resin 112 is held in the slit portion 11 by surface tension.
[0024]
The resin 112 to be injected preferably has a low viscosity, a high transparency, and a high weather resistance (light), and further has a refractive index (1.5 to 1.8) and a hardness (60 to Those having 85 Shore D) are preferred. In the embodiment, a two-component mixed epoxy resin (adhesive) that is transparent and has a refractive index of 1.5 to 1.7 is used. The viscosity of this resin 112 is about 200 cP for the main agent and about 3000 cP for the curing agent. This resin is mixed at a main agent: curing agent = 2: 1 (viscosity after mixing is about 900 cP), and after degassing in a low-pressure atmosphere, It injected into the slit part 11.
[0025]
When the low-viscosity resin 112 is used, bubbles are hardly generated when the resin 112 is injected into the slit portion 11. A preferred viscosity range is 100 to 5000 cP. In addition, it is more preferable that the resin 112 to be injected is defoamed in advance in a low-pressure atmosphere as in the present embodiment because bubbles are less likely to be generated in the slit portion 11. In addition, when a material having a refractive index close to the refractive index of the lens material is used, the boundary between the resin 112 and the lens material is inconspicuous, the sense of unity with the lens material is increased, and the cutting surface when the slit portion 11 is formed is increased. This is desirable because white turbidity can be reduced.
[0026]
Note that the resin 112 to be used is not limited to this, and may be a photocurable resin or a thermosetting resin.
[0027]
Examples of the photocurable resin include acrylic photocurable resins (refractive index: 1.5 to 1.8). When the spectacle lens 1 itself is treated to prevent UV transmission, it is difficult to cure the spectacle lens 1 by transmitting the spectacle lens 1 and irradiating the slit portion 11 with UV rays if an ultraviolet curable resin is used. However, a visible light curable resin is preferable because the resin can be cured even in such a case.
[0028]
When a thermosetting resin is used, it is necessary to cure at a temperature that does not damage the lens material and the coating applied to the lens by heat, and it is preferable to cure at about 60 ° C. or less.
[0029]
FIG. 15 is an explanatory diagram of a method for forming a decorative portion according to the second embodiment of the present invention.
As shown in FIG. 15, for injection, for example, an injection device 8 provided with an injection needle 81 at the tip is used. As this injection needle 81, for example, an injection needle or the like can be used, but other injection needles may be used as long as the injection needle 81 can be injected from the tip of a nozzle that is narrower than the slit width and longer than the slit depth. In addition, it is desirable that the injection is performed slowly because air bubbles are less likely to be generated in the resin 112.
[0030]
After filling the resin 112 in this way, the position of the thin plate part 120 is adjusted as necessary. In this state, the spectacle lens 1 may be placed in a low-pressure atmosphere, and the resin 112 in the slit portion 11 may be defoamed. Further, when the amount of the resin 112 is insufficient, it may be added.
[0031]
Next, the filled resin 112 is cured. In this embodiment, after being cured for several hours at room temperature, it was further allowed to stand for several hours in a high temperature atmosphere (about 50 ° C.) that does not affect the spectacle lens 1 and cured. After curing, the resin 112 protruding from the slit portion 11 is shaved with an edger, and the lens end surface near the slit portion 11 is polished to complete the spectacle lens 1.
[0032]
When created by such a method, it is possible to prevent bubbles from being generated in the slit portion 11, and in particular, even when the thin plate part 120 having an uneven shape is used, a wettability improving process is performed in advance. Therefore, it is hard to produce bubbles. In addition, there is an advantage that it does not take time since the procedure for creating the thin plate-like decorative body part as in the first embodiment is not necessary.
[0033]
In the above method, the resin 112 is filled with the thin plate part 120 in the slit portion 11 in advance. However, the resin 112 is filled first, and the thin plate part 120 that has been subjected to the wettability improving process in advance is slit. You may insert from the opening part of the part 11, and may arrange | position in a predetermined position. In this case, it is more preferable that the thin plate part 120 is slowly inserted because it is difficult for bubbles to enter. In the case of such a method, since the resin 112 can be injected into the slit portion 11 in a state where the thin plate part 120 is not disposed, there is an advantage that the injection operation of the resin 112 is easy. It is also possible to defoam the resin filled in the slit portion 11 after the resin 112 is filled and before the thin plate part 120 is inserted.
[0034]
In this way, by embedding a decorative article inside the lens by the method of the present invention, the convex surface and concave surface of the lens can be flattened, and the decorative article is protected by the lens base material, Even if wiped, etc., the ornaments will not be peeled off or damaged. Therefore, even if the physical strength and weather resistance, such as fiber and paper, are extremely low, it can be used as a decorative article.
[0035]
In the above embodiment, the example in which the present invention is applied to the rimless glasses has been described. However, the present invention is not limited to the rimless, but can be applied regardless of the type of glasses, such as full rim and rimlon. Of course you can. Moreover, although the example which uses what embedded decorative parts, such as the thin plate part 120, in the resin layer was shown as the decorative body 100, this may be what disperse | distributed the pigment to the whole resin layer, for example. Further, without using a material corresponding to the decorative body 100, a resin in which pigments, gold powder, or the like is dispersed may be directly filled in the slit portion 11 and cured. Further, a thin plate, block decoration, jewelry, or the like that has been processed with a high decorative effect may be inserted into the slit portion 11 and hardened with a transparent resin or a color resin resin.
[0036]
Moreover, in the said embodiment, although the slit part 11 was formed in the spectacle lens 1 and the decoration body 100 was embedded there, or the thin plate part 120 was embedded directly, the example which formed the decoration part 10 was shown, but the lens was shown. The decorative body 100 may be bonded and fixed to the surface, or the lens surface may be decorated such as engraving. For example, a color film may be attached to an area corresponding to the decorative portion 10, or a film on which various cutout patterns are formed may be attached.
[0037]
【The invention's effect】
As described above, the present invention is a spectacle lens in which a decorative portion is provided in the vicinity of the edge of the lens, and this decorative portion is disposed in the transparent region of the lens when the spectacle lens is viewed from substantially the front. It is characterized in that a decorative body is provided in the lens area on the optical axis side from the edge of the lens to the extent that it can be clearly seen that the It is an object of the present invention to provide a spectacle lens, a manufacturing method thereof, and spectacles using the spectacle lens capable of remarkably widening the design.
[Brief description of the drawings]
FIG. 1 is a diagram showing a spectacle lens and spectacles according to a first embodiment of the present invention.
FIG. 2 is a partially enlarged view of FIG.
FIG. 3 is a cross-sectional view taken along line III-III in FIG.
4 is a partially enlarged view of FIG. 3;
FIG. 5 is an explanatory diagram of a method for processing a slit portion.
FIG. 6 is an enlarged view of a slit portion.
FIG. 7 is an explanatory diagram of a slit portion.
FIG. 8 is an explanatory diagram of a method for manufacturing a decorative body part.
FIG. 9 is an explanatory diagram of a method for manufacturing a decorative body part.
FIG. 10 is an explanatory diagram of a method for manufacturing a decorative body part.
FIG. 11 is an explanatory diagram of a method for manufacturing a decorative body part.
FIG. 12 is an explanatory diagram of a method for manufacturing a decorative body part.
FIG. 13 is an explanatory diagram of a method for manufacturing a decorative body part.
FIG. 14 is an explanatory view of attachment of decorative body parts.
FIG. 15 is an explanatory diagram of a method of forming a decorative portion according to the second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 1 '... Eyeglass lens 2, 2' ... Temple, 3 ... Bridge 4, 4 '... Nose pad 10, 10a, 10', 10'a ... Decoration part, 11, 11a ... Slit part, 100 ... Decorative body, 120 ... Thin plate parts.

Claims (14)

A spectacle lens provided with a decorative portion formed integrally with the lens in the vicinity of the edge of the lens ,
This decorative portion has a depth dimension larger than the width dimension, and a deep groove-shaped slit portion formed from the edge end surface of the spectacle lens toward the optical axis direction substantially along the front and back surfaces of the lens,
A decorative body having a thin plate shape inserted into the slit portion;
A transparent adhesive layer formed between the slit portion and the decorative body,
The spectacle lens according to claim 1, wherein the decorative body is formed by embedding decorative parts formed in a predetermined decorative shape in a transparent resin layer . The spectacle lens according to claim 1, wherein a thickness of the decorative body is substantially the same as a width of the slit portion. The decorative parts, according to claim 1 or 2 spectacle lens wherein it is a thin plate part formed of a thin plate or film. The spectacle lens according to claim 1, further comprising a transparent film on one side or both sides of the decorative body. An eyeglass lens according to any one of claims 1 to 4 , wherein the eyeglass lens is attached to an eyeglass frame . In a method of manufacturing a spectacle lens provided with a decorative portion formed integrally with the lens in the vicinity of the edge of the lens,
The step of providing the decorative portion includes:
A step of forming a thin plate-shaped decorative body by curing in a state in which decorative parts formed in a predetermined decorative shape are embedded in a transparent resin;
Forming a deep groove-shaped slit portion having a depth dimension larger than the width dimension and substantially formed along the front and back surfaces of the lens from the edge end surface of the spectacle lens toward the optical axis direction;
The decorative body formed by the decorative body forming step is inserted into the slit section formed by the slit portion forming process, and the space between the slit section and the decorative body is filled with a transparent adhesive.
A method of manufacturing a spectacle lens, comprising: a step of bonding and fixing in this manner. The decorative body forming step includes
Applying a transparent resin to a transparent film;
Embedding the decorative part in the applied transparent resin;
The method of manufacturing a spectacle lens according to claim 6. The decorative body forming step includes
The method for manufacturing a spectacle lens according to claim 7, further comprising a step of applying a transparent film on the coated transparent resin. The decorative body forming step includes
The method for manufacturing a spectacle lens according to claim 6, further comprising a step of embedding a decorative part by pouring a transparent resin into a mold part opened upward. The method for manufacturing a spectacle lens according to any one of claims 6 to 9, wherein the decorative part is preliminarily plasma-treated before being embedded in the transparent resin. The method for manufacturing a spectacle lens according to any one of claims 6 to 10, wherein a portion protruding from the slit portion of the decorative body is removed after the adhesion fixing step. In a method of manufacturing a spectacle lens provided with a decorative portion formed integrally with the lens in the vicinity of the edge of the lens,
The step of providing the decoration portion forms a deep groove-shaped slit portion having a depth dimension larger than the width dimension and formed substantially along the front and back surfaces of the lens from the edge end surface of the spectacle lens toward the optical axis direction. Process,
Plasma treatment of thin plate parts made of thin plates or films formed in a predetermined decorative shape; and
Putting a transparent resin defoamed in advance in a low-pressure atmosphere into the slit portion formed by the slit portion forming step, and a thin plate part plasma-treated by the plasma treatment step;
A process of defoaming the lens in a low pressure atmosphere with a transparent resin and a thin plate part placed in the slit part,
Curing the transparent resin defoamed by the defoaming step;
A method of manufacturing a spectacle lens, comprising: The slit portion forming step is performed by fixing the spectacle lens and translating a metal saw,
13. The method for manufacturing a spectacle lens according to claim 12, wherein the step of putting the transparent resin and the thin plate part into the slit part is performed in a state where the bottom of the slit part is horizontal. The transparent resin is made of a two-component mixed epoxy resin, and the two components are mixed and defoamed in a low-pressure atmosphere before entering the slit portion.
The method of manufacturing a spectacle lens according to claim 12.

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