JPH11314250A - Manufacture of dielectric lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dielectric lens manufacturing method capable of efficiently and certainly forming a matching layer uniform in thickness. SOLUTION: When a back side matching layer is formed by injecting a matching layer material, a predetermined cavity forming lower mold 7 and a bonding upper mold 8 are used not only to support a lens main body 1 by the whole of the surface side of the lens main body 1 but also to ensure a predetermined cavity by support pins 6 and, when a front side matching layer is formed by injecting the matching layer material, a predetermined bonding lower mold and a cavity forming upper mold are used to support the lens main body 1 by the whole of the back side of the lens main body 1 to separately injection mold the back side matching layer and the front side matching layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for manufacturing a dielectric lens, and more particularly, to a method for manufacturing a dielectric lens having a structure in which a matching layer is formed on a surface of a lens body made of a dielectric.

[0002]

2. Description of the Related Art As one of dielectric lenses, there is a dielectric lens having a structure in which a matching layer is formed on the surface of a lens body made of a dielectric.

When manufacturing such a dielectric lens,
Conventionally, the methods described below and below are generally used.

First, the first method is, for example, as shown in FIG.
As shown in (a), the upper mold 51 and the lower mold 52
Using a split mold 53, a lens body 54 is arranged between the upper mold 51 and the lower mold 52, and the lens body 5
4 is supported by a support pin 55, and a material (matching layer material) 57 for forming a matching layer is injected into a cavity 56 formed between the inner surface of the mold 53 and the lens body 54, and when the filling is completed. At the same time, after the support pins 55 are pulled out by a core back or the like, a space formed after the support pins 55 is filled with a matching layer material 57 to form a matching layer 58, as shown in FIG. A method of obtaining a dielectric lens having a structure in which a matching layer 58 is formed on a surface of a lens body 54 made of a dielectric material.

Another method is as shown in FIG.
A projection 59 having a height corresponding to the thickness of the matching layer is provided on the lens body 54, and the projection 59
A material (matching layer material) 57 for forming a matching layer is injected into a cavity 56 formed between the
8, the lens body 5 made of a dielectric material
There is known a method of manufacturing a dielectric lens having a structure in which a matching layer 58 is formed on the surface of a fourth lens.

In the above method, since the lens body to be inserted is usually a resin molded body,
When the matching layer material (usually resin) is injected, it is easily deformed by the pressure, and when the thickness of the matching layer is reduced,
The flow resistance increases, and the tendency of the lens body to deform increases. Therefore, when supported by the support pins, it is necessary to increase the number of gates into which the matching layer material is introduced so that a local force is not applied to the lens body.

[0007] However, even if the number of gates is increased, it is not easy to uniformly fill the matching layer material from each gate. There is a problem that it is difficult to form a matching layer having a thickness.

Further, in order to form a matching layer by pulling out a support pin supporting the lens body at the time of injection molding and further injecting a matching layer material after the support pin comes off,
Not only does the mold structure become complicated, but strict management of molding conditions is required, and it is difficult to improve productivity.

In addition, in the case of the above method, since it is necessary to form a projection on the lens body, there is a projection on each part of the matching layer, which deteriorates the function of the matching layer and deteriorates the lens characteristics. There is a problem. Furthermore, as in the case of the above method, the projections are deformed by the filling pressure during the injection of the matching layer material, and the lens body is displaced,
There is a problem that it is difficult to form a matching layer having a uniform thickness.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a method of manufacturing a dielectric lens capable of efficiently and surely forming a matching layer having a uniform thickness.

[0011]

To achieve the above object, a method of manufacturing a dielectric lens according to the present invention comprises a lens body made of a dielectric and a matching layer formed on the surface of the lens body. In the method of manufacturing a dielectric lens, (a) a cavity forming lower mold having a support pin for floating and supporting the lens body so that a predetermined gap (cavity) is formed between the lower body and the lens body. (C) a step of sandwiching the lens body between the lens body and a contact upper mold having a concave portion having a shape that is in close contact with the surface of the lens body; Forming a matching layer (back side matching layer) on the back surface of the lens body by injecting a matching layer material into the lens body; and (c) fitting and fitting to the back side of the lens body on which the back side matching layer is formed. The lower mold,
A cavity forming upper mold having a concave portion having a shape corresponding to the shape of the front surface side of the lens body and having a predetermined gap (cavity) formed with the surface of the lens body. A step of sandwiching the lens body on which the back side matching layer is formed, and (d) injecting a matching layer material into a cavity formed between the lens body and the upper mold for forming a cavity; Forming a matching layer (front side matching layer).

When the matching layer material is injected to form the back side matching layer, the lens is formed over the entire front side (upper side) of the lens body by using the above-described cavity forming lower mold and close contact upper mold. In addition to supporting the main body, a predetermined cavity is secured by the support pin, and when forming the surface side matching layer by injecting the matching layer material, the above-mentioned close contact lower mold and the cavity forming By using a mold and supporting the lens body on the entire back side (lower side) of the lens body and separately injection-molding the back side matching layer and the front side matching layer, the lens body does not shift in position. A matching layer having a uniform thickness can be formed efficiently and reliably. Also,
Since there is no displacement of the lens body due to the pressure of the matching layer material at the time of injection, a side gate that can be easily gated can be adopted as a gate for introducing the matching layer material.

According to a second aspect of the present invention, in the method of manufacturing a dielectric lens, an undercut portion is formed when the back side matching layer is formed, and an undercut portion is formed when the front side matching layer is formed. By flowing a matching layer material into the cut portion, the front side matching layer is mechanically joined to the back side matching layer.

An undercut portion is formed when the back side matching layer of the lens body is formed, and a matching layer material is poured into the undercut portion when the front side matching layer is formed. In addition to the fusion between the materials constituting the front-side matching layer, the front-side matching layer flows into the undercut portion and is mechanically joined, so that the joining strength between the matching layers can be improved.

In the method for manufacturing a dielectric lens according to a third aspect of the present invention, (a) the lower mold for forming the cavity and the upper mold for contact are formed between the lens body and the lower mold for forming the cavity. In the step of injecting the matching layer material into the cavity to form the back side matching layer, the matching layer is made of the same material as the matching layer, protrudes outside the outer periphery of the lens body, and is positioned at a predetermined position. (B) having a shape such that a rear lens mounting portion provided with a plurality of through holes is formed;
In the step of injecting a matching layer material into a cavity formed between the lens body and the cavity forming upper mold, the contact lower mold and the cavity forming upper mold to form the surface side matching layer, It is made of the same material as the matching layer by being fused and integrated with the front surface side of the rear lens mounting portion, and protrudes outward from the outer peripheral portion of the lens body. The surface-side lens mounting portion constituting the dielectric lens mounting portion in which the holes are provided is shaped so as to be molded, and (c) when the matching layer is formed by injecting the matching layer material, A dielectric lens mounting portion, which is made of the same material, protrudes outward from the outer peripheral portion of the lens body, and has a plurality of mounting holes at predetermined positions, is formed simultaneously with the matching layer.

The lower mold for forming a cavity and the upper mold for close contact are formed in such a shape that a back side lens mounting portion having a plurality of through holes at predetermined positions is formed at the time of injection molding of a matching layer material. During the injection molding of the matching layer material, the lower mold and the upper mold for cavity formation are integrated with the matching layer material by fusing with the front surface side of the rear lens mounting portion, so that a plurality of mounting holes are provided at predetermined positions. The same material as the matching layer is used when the matching layer is formed by injecting the matching layer material by forming the matching lens so as to form the front-side lens mounting portion that forms the disposed dielectric lens mounting portion. And a dielectric lens mounting portion, which protrudes outward from the outer peripheral portion of the dielectric lens and has a plurality of mounting holes at predetermined positions, can be formed simultaneously with the matching layer.

In the method of manufacturing a dielectric lens according to a fourth aspect of the present invention, the diameter of the through hole of the rear lens mounting portion formed in the step (a) may be changed by adjusting the diameter of the finally formed dielectric hole. Molded larger than the diameter of the mounting hole of the body lens mounting part,
When the matching layer material is injected in the step (b) to form the front-side lens mounting portion, the dielectric lens mounting portion has a predetermined hole diameter as a mounting hole.

When the diameter of the through hole of the rear lens mounting portion is formed larger than that of the dielectric lens mounting portion to be finally formed, when forming the front lens mounting portion,
When integrated with the backside lens mounting portion and the diameter of the mounting hole of the dielectric lens mounting portion finally formed is set to a predetermined size, when forming the front side matching layer, When inserting the lens body with the matching layer formed into the mold, it is possible to easily insert the lens body without causing a problem of pitch and shape variation of the through-holes of the rear lens mounting portion, Pitch accuracy and shape can be adjusted only by the mold at the time of forming the front side matching layer.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described, and features thereof will be described in more detail.

FIG. 1 is an exploded perspective view showing a dielectric lens manufactured by a method of manufacturing a dielectric lens according to an embodiment of the present invention, and FIG. 2 is a sectional view of the dielectric lens. As shown in FIGS. 1 and 2, this dielectric lens is made of a dielectric material, and has a partially spherical surface on the front side (upper side) and a flat shape on the back side (lower side); A back side matching layer 2 formed on the back side of the lens body 1, a back side lens mounting portion 3 integrally formed with the back side matching layer 2 so as to protrude outside the outer periphery of the lens body 1, A front side matching layer 4 formed on the front side of the lens body 1 and a front side lens mounting portion 5 integrally formed with the front side matching layer 4 so as to protrude outside the outer periphery of the lens body 1. It has a configuration provided. The back side matching layer 2 and the front side matching layer 4 are actually completely fused and integrated,
In addition, the backside lens mounting portion 3 formed integrally with the backside matching layer 2 and the front side lens mounting portion 5 formed integrally with the frontside matching layer 4 are actually completely fused and integrated. However, in FIG. 1, the back side matching layer 2 and the front side matching layer 4 and the back side lens mounting portion 3 and the front side lens mounting portion 5 are separated from each other for easy understanding of the invention. The state is shown and described.

In addition, the above-mentioned rear lens mounting portion 3 includes:
A through hole 21 to be a mounting hole 10 for mounting a dielectric lens on a predetermined mounting object is formed, and when forming the front side matching layer 4, a matching layer material is applied to the back side of the lens body 1. A hole 11 for forming an undercut portion is formed so as to be turned around.

The front lens mounting portion 5 has a mounting hole 10 for mounting a dielectric lens.

Next, a method of manufacturing a dielectric lens will be described with reference to FIGS. 3 and 4 are views showing a method of manufacturing the dielectric lens according to this embodiment. FIG. 3 shows a process of forming the back side matching layer 2 and the back side lens attachment portion 3, and FIG. FIG. 4 is a view showing a step of forming a layer 4 and a front-side lens attachment portion 5. 3 and 4, for easy understanding, the lens body 1 and the upper molds 8 and 28 are cut vertically and divided into two, and only one of them is shown.

[Formation of Backside Matching Layer] In manufacturing a dielectric lens, first, as shown in FIG. 3, the lens body 1 is floated and supported so that a predetermined space is formed between the lens body 1 and the backside. And four support pins 6 for forming holes 11 (FIG. 1) for forming an undercut portion, and a through hole 21 for forming a mounting hole for mounting a dielectric lens. Eight pins (core pins) 12 for forming (FIG. 1) and a gate (side gate) for supplying a matching layer material (molten resin)
13, a concave portion 14 having a shape corresponding to the spherical shape on the front surface side of the lens body 1 and closely contacting the surface of the lens body 1; In the embodiment, the contact upper die (die) in which the sprue hole 15 for supplying the molten polypropylene resin) is formed.
8, the lens body 1 is sandwiched. Thus, a cavity is formed between the back surface of the lens body 1 and the cavity forming lower mold 7.

Then, a matching layer material is injected into the cavity formed between the lens body 1 and the lower mold 7 for forming a cavity under the following conditions, so that the matching layer material with the back side matching layer 2 (FIGS. 1 and 2) is formed. The rear lens attachment 3 (FIGS. 1 and 2) is formed. (Molding conditions) Mold temperature: 60 ° C Cylinder temperature: 290 ° C Injection pressure: 500 kg / cm ² Injection speed: 15 mm / sec Cooling time: 15 sec

[Formation of Front-Side Matching Layer] Next, as shown in FIG. 4, the lens body 1 on which the back-side matching layer 2 and the back-side lens attachment portion 3 are formed includes the back-side lens attachment portion 3. A core pin 22 having a shape corresponding to the shape of the back side matching layer 2 for forming the mounting hole 10 for mounting the dielectric lens;
The surface-side matching layer 4 and the surface-side lens mounting portion 5 (FIG. 1)
2) is sandwiched between a cavity forming upper mold (mold) 28 having a partially spherical concave portion 34 so as to form a predetermined gap (cavity) as shown in FIG. The matching layer material is injected into the cavity formed between the mold 28 and the mold under the following conditions to form the matching layer (front side matching layer) 4 and the front side lens mounting portion 5 on the surface of the lens body 1. . The matching layer material is injected into the cavity from the two side gates 33.

(Molding conditions) Mold temperature: 60 ° C. Cylinder temperature: 290 ° C. Injection pressure: 500 kg / cm ² Injection speed: 20 mm / sec Cooling time: 15 sec

FIG. 5 shows the structure of the front side matching layer 4 and the front side lens mounting portion 5 thus formed. However, the front side matching layer 4 and the front side lens mounting portion 5
Is actually fused and integrated with the back side matching layer 2 (FIGS. 1 and 2) and the back side lens mounting portion 3 (FIGS. 1 and 2).

As described above, according to the method of manufacturing the dielectric lens of this embodiment, when the matching layer material is injected to form the back side matching layer 2, the front side of the lens body 1 is brought into close contact. The lens body 1 is supported on the entire surface side of the lens body 1 in close contact with the concave portion 14 of the mold 8, and a predetermined cavity is secured by the four support pins 6. Without the back surface side matching layer 2
Can be formed. In addition, since the displacement of the lens body 1 does not occur due to the pressure of the matching layer material at the time of injection, a side gate that can be easily gated is adopted as a gate for introducing the matching layer material, and efficient injection is performed. Molding can be performed.

When the matching layer material is injected to form the front side matching layer 4, the lens body 1 is supported on the entire back side of the lens body 1 and the two side gates 3 are formed.
3, the rear-side matching layer 2 and the lens body 1 on which the rear-side lens mounting portion 3 is formed are not displaced, and the front-side matching layer 4 is uniform in thickness.
Can be reliably formed.

Therefore, according to the method of the above embodiment, a dielectric lens having a uniform thickness matching layer formed on the surface of the lens body and having a lens mounting portion is provided.
It can be manufactured efficiently.

In the above embodiment, as the four support pins 6, as shown in FIGS. 3 and 6 (a), a structure having a step 6a on the surface is used. After the matching layer material is injection-molded when forming the back side matching layer 2, as shown in FIG. 6B, an undercut portion (gap) A is formed and the front side matching layer 4 is formed by injection molding. Then, as shown in FIG. 6C, the matching layer material flows into the undercut portion A, and in addition to the fusion between the materials forming the back side matching layer 2 and the front side matching layer 4, the matching layer 4 Flows into the undercut portion A to perform mechanical joining, so that the lens body 1 and the front side matching layer 4 are more securely joined.

In the above-described embodiment, the hole 8 for forming the through hole 21 for forming the mounting hole in the rear lens mounting portion 3 is provided.
As shown in FIG. 7A, a tapered step 12 a is formed as the pin (core pin) 12, the lower part of the step 12 a becomes a large diameter part, and the upper part of the step 12 a becomes a small diameter part. When the back side matching layer 2 and the back side lens attachment portion 3 are injection-molded,
As shown in FIGS. 7A and 7B, the diameter is larger than the final mounting hole 10 (FIG. 7C), and the tapered step portion 21a for forming the undercut portion B on the inner surface. Is formed.

Then, as shown in FIG. 7 (b), with the core pin 22 of the contact lower mold 27 (FIG. 4) fitted in the through hole 21, the front side matching layer 4 and the front side lens mounting By injecting the matching layer material for forming the portion 5, the front side lens mounting portion 5 having the mounting hole 10 having a predetermined diameter is formed as shown in FIG. 7 (c). As shown in FIG. 7C, the front side matching layer 4 (front side lens mounting portion 5) and the back side matching layer 2 (back side lens mounting portion 3) are fused around the mounting hole 10. At the same time, the matching layer material for the front side matching layer is
Since it flows into the undercut portion B below a and is mechanically joined, the two are more reliably joined.

In the step of forming the rear-side lens mounting portion 3, a through hole 21 larger than the final mounting hole 10 is formed, and when the front-side lens mounting portion 5 is formed,
Since the mounting hole 10 having a predetermined hole diameter is formed, the positional accuracy when the integrally molded body in which the back side matching layer 2 and the back side lens mounting portion 3 are formed in the lens body 1 is inserted into a mold. Is not so high, the pitch and shape of the through-holes 21 are allowed to vary to some extent, and only the mold used for forming the front-side matching layer is used. Pitch accuracy,
The shape and the like can be adjusted. Therefore, the dielectric lens can be manufactured efficiently, and the productivity can be improved.

In the above-described embodiment, the undercut portions A and B are provided only on the backside lens mounting portion formed integrally with the backside matching layer, and when forming the front side matching layer, the matching layer material is used. Since it is poured, no trace is left on the surface of the front side matching layer, and the appearance can be improved.

In the above embodiment, the case where polypropylene was used as the matching layer material was described.
The matching layer material is not limited to this, and various other dielectric materials can be used.

In other respects, the present invention is not limited to the above-described embodiment. The constituent materials of the lens and the matching layer, the shape of the lens body, the structure of the matching layer and the lens mounting portion, the shape of the mounting hole, The gist of the invention relates to the specific structure of the lower mold for forming a cavity and the upper mold for forming the lower surface side matching layer and the specific structure of the lower mold for forming the contact and the upper mold for forming cavity used for forming the upper matching layer. Within the range, various applications and modifications can be made.

[0039]

According to the method for manufacturing a dielectric lens of the present invention, when the matching layer material is injected to form the back side matching layer, the above-described cavity forming lower mold and close contact upper mold are used. ,
While supporting the lens body on the entire front side of the lens body, a predetermined cavity is secured by the support pin, and when forming the surface side matching layer by injecting the matching layer material, Since the lower mold and the upper mold for forming a cavity are used to support the lens body on the entire back side of the lens body and to separately mold the back side matching layer and the front side matching layer, It is possible to efficiently and reliably form a matching layer having a uniform thickness without causing displacement. In addition, since the position of the lens body does not shift due to the pressure of the matching layer material at the time of injection, a side gate that can be easily gated can be adopted as a gate for introducing the matching layer material. Therefore, according to the method of the above embodiment, it is possible to efficiently manufacture a dielectric lens in which a matching layer having a uniform thickness is formed on the surface of the lens body without causing a positional shift of the lens body.

Further, as in the method of manufacturing a dielectric lens according to the second aspect of the present invention, when forming the back side matching layer of the lens body, forming the undercut portion and forming the front side matching layer. In addition, by pouring the matching layer material into the undercut portion, in addition to the fusion between the materials constituting the back side matching layer and the front side matching layer, the front side matching layer flows into the undercut portion, and mechanical joining is performed. Since this is performed, it is possible to improve the bonding force between the matching layers.

Further, as in the method of manufacturing a dielectric lens according to the third aspect of the present invention, a plurality of through-holes are formed at predetermined positions in the lower mold for forming a cavity and the upper mold for close contact during injection molding of a matching layer material. The rear-surface-side lens mounting portion provided is formed into a shape such that it is molded. By fusing and integrating, a dielectric lens mounting portion having a plurality of mounting holes at predetermined positions is formed. When the matching layer is formed by injecting the layer material, the matching layer is made of the same material as the matching layer, protrudes outward from the outer peripheral portion of the dielectric lens, and has a plurality of mounting holes at predetermined positions. The body lens attachment part is formed simultaneously with the matching layer. It becomes possible.

Further, as in the method of manufacturing a dielectric lens according to the fourth aspect of the present invention, the diameter of the through hole of the rear lens mounting portion is made larger than that of the finally formed dielectric lens mounting portion. When the front side lens mounting part is formed in large size, it is integrated with the rear side lens mounting part, and the diameter of the mounting hole of the dielectric lens mounting part finally formed has a predetermined size. In such a case, when forming the front side matching layer, when inserting the lens body on which the back side matching layer is formed into a mold, the pitch and the shape of the through holes of the back side lens mounting portion may have a problem. In addition to this, it is possible to easily insert, and the pitch accuracy and shape of the mounting holes can be adjusted only by the mold at the time of forming the front side matching layer.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a dielectric lens manufactured by a method for manufacturing a dielectric lens according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a dielectric lens manufactured by a method for manufacturing a dielectric lens according to one embodiment of the present invention.

FIG. 3 is a view showing a step of forming a back side matching layer and a back side lens attaching portion in the method of manufacturing a dielectric lens according to one embodiment of the present invention.

FIG. 4 is a view showing a step of forming a front-side matching layer and a front-side lens attachment portion in the method of manufacturing a dielectric lens according to one embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a structure of a front-side matching layer and a front-side lens attachment portion formed in a method of manufacturing a dielectric lens according to one embodiment of the present invention.

FIGS. 6A, 6B, and 6C are cross-sectional views illustrating a process of forming an undercut portion with a support pin in a method of manufacturing a dielectric lens according to an embodiment of the present invention.

FIGS. 7A, 7B, and 7C are cross-sectional views illustrating a process of forming a mounting hole of a lens mounting portion in a method of manufacturing a dielectric lens according to an embodiment of the present invention.

FIGS. 8A and 8B are cross-sectional views illustrating a conventional method of manufacturing a dielectric lens.

FIG. 9 is a cross-sectional view illustrating another example of a conventional method for manufacturing a dielectric lens.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lens main body 2 Back side matching layer 3 Back side lens attaching part 4 Front side matching layer 5 Front side lens attaching part 6 Support pin 6a Stepped part 7 Cavity forming lower mold 8 Close contact upper mold 10 Mounting hole 11 Undercut forming Hole 12 pin (core pin) 12a tapered step 13 gate (side gate) 14 recess 15 sprue hole 21 through hole 21a tapered step 22 core pin 27 close lower mold 28 cavity forming upper mold 33 side gate 34 recess A, B Undercut section

Claims (4)

[Claims] 1. A method of manufacturing a dielectric lens comprising a lens body made of a dielectric and a matching layer formed on the surface of the lens body, wherein: (a) a predetermined gap ( (Cavity) is formed between a lower mold for cavity formation having a support pin for floating and supporting the lens body and an upper contact mold having a concave portion having a shape closely contacting the surface of the lens body. (B) injecting a matching layer material into a cavity formed between the lens body and the lower mold for forming a cavity to form a matching layer (a back side matching layer) on the back surface of the lens body; (C) between the lower surface of the lens body on which the rear surface side matching layer is formed and the close contact lower mold that fits and adheres to the rear surface of the lens body, and the shape of the front surface of the lens body. Predetermined gap (cavity) A step of sandwiching the lens body on which the back side matching layer is formed between the cavity forming upper mold having a concave portion having a shape to be formed; and (d) a lens body and a cavity forming upper mold. Forming a matching layer (surface-side matching layer) on the surface of the lens body by injecting a matching layer material into a cavity formed between the dielectric lens and the lens body. . 2. An undercut portion is formed when forming the back side matching layer, and a matching layer material is poured into the undercut portion when forming the front side matching layer, whereby the front side matching layer is formed. 2. The method according to claim 1, wherein the step (c) is mechanically bonded to the back side matching layer. 3. (a) Injecting a matching layer material into the cavity formed between the lens body and the cavity forming lower mold by using the lower mold for forming a cavity and the upper mold for close contact to form the back side alignment. In the step of forming a layer, the back side lens attachment portion, which is made of the same material as the matching layer, protrudes outward from the outer peripheral portion of the lens body, and has a plurality of through holes at predetermined positions, is provided. (B) Injecting the matching layer material into the cavity formed between the lens body and the cavity forming upper mold, In the step of forming the front-side matching layer, by being fused and integrated with the front side of the back-side lens mounting portion, the same material as the matching layer is used, and the outer side of the lens body projects outside. And given (C) forming a matching layer by injecting the matching layer material to form a front lens mounting portion constituting a dielectric lens mounting portion in which a plurality of mounting holes are provided in To
A dielectric lens mounting portion made of the same material as the matching layer, protruding outward from the outer peripheral portion of the lens body, and having a plurality of mounting holes at predetermined positions is formed simultaneously with the matching layer. The method for producing a dielectric lens according to claim 1 or 2, wherein: 4. A method for forming the through hole of the rear lens mounting portion formed in the step (a) to be larger than the hole diameter of the finally formed dielectric lens mounting portion. In the meantime, when the matching layer material is injected in the step (b) to form the front lens mounting portion, the dielectric lens mounting portion has a predetermined hole diameter as a mounting hole. The method for manufacturing a dielectric lens according to claim 3.