JP4691637B2 - Collimator lens module manufacturing method, collimator lens module and manufacturing apparatus thereof - Google Patents

Description

  The present invention relates to an optical coupler, and more particularly to a collimator lens module for controlling an optical signal propagating in an optical fiber.

In an optical fiber transmission system, it is necessary to insert an optical functional component in order to control an optical signal propagating through the optical fiber. The optical functional component (optical isolator, optical filter) is disposed and fixed between two collimator lenses (see Patent Documents 1 to 5 below).
On the other hand, the present inventors have greatly improved the MFD (Mode Field Diameter) of the SMF (Single Mode Optical Fiber), the gap length can be expanded, and the field distribution of the fundamental mode is large. A fiber-type collimator using Index Fiber is proposed (see Patent Document 6 below).
JP 2003-195098 A Japanese Patent Laid-Open No. 2003-13962 Japanese Patent Laid-Open No. 2003-131068 JP 2003-195098 A JP 2000-2331034 A JP 2004-325618 A

  However, in the above-described optical fiber transmission system, if all of the two optical fibers and the two collimator lenses are not arranged at the optimum positions on the order of microns, optical loss occurs due to the straightness of light, and the performance of the transmission system. Gets worse. Such placement work is a careful manual work or is performed using a custom-made expensive device, and there is a problem that the cost is inevitably increased.

  In view of the above circumstances, an object of the present invention is to provide a method for manufacturing a collimator lens module, a collimator lens module, and a manufacturing apparatus thereof that can be manufactured inexpensively and easily.

In order to achieve the above object, the present invention provides
[1] In the method of manufacturing a collimator lens module, the inside is hollow, and a mold for forming a frame on which an inner hole pin and a core as mold parts are mounted is provided. An inner hole pin for the left optical fiber for forming a hole for inserting the fiber, an inner hole pin for the right optical fiber for forming a hole for inserting the right optical fiber, and the inside of the mold for frame formation Left core with a concave curved surface of the collimator lens formed on the right end surface and a right core with a concave curved surface of the collimator lens formed on the left end surface for forming at least one collimator lens forming cavity on each of the left and right sides When the central core concave surface of each collimator lens on the left and right both sides is formed, a sprue Metropolitan formed from the exterior to the interior hollow place, melted at high temperature plastics Poured tics from the sprue into the mold, remove the bore pin and the core after cooling, the optical fiber is mounted in a portion bore pin has been removed for the optical fiber, the optical signal propagating in an optical fiber An in-line type collimator lens module for controlling is formed.

[2] In the method of manufacturing a collimator lens module, the inside is hollow, and a mold for forming a frame on which an inner hole pin and a core as mold parts are mounted is provided. Insert the left optical fiber inner hole pin to form the hole to insert the fiber, the right optical fiber inner hole pin to form the right optical fiber hole, and the rear optical fiber. A rear-side optical fiber inner-hole pin for forming a hole to be formed, a front-side optical fiber inner-hole pin for forming a hole for inserting the front-side optical fiber , and left and right in the frame forming mold for forming at least one of the collimator lens forming cavity respectively in the longitudinal direction, and the left core concave surface of the collimator lens to the right end surface is formed, a concave collimator lens to the left end surface The right core surface is formed, a front core concave surface of the collimator lens on the rear side is formed, the side of the core after the concave curved surface of the collimator lens to the front side surface is formed, on the left and right front and rear surfaces A central core in which a concave curved surface of the collimator lens is formed, and a gate formed from the outside into a hollow interior, and a plastic melted at a high temperature is poured from the gate into the mold, and after cooling, the inner hole pin and Remove the core, by mounting the optical fiber in a portion bore pin has been removed for the optical fiber, and characterized by forming a branched collimator lens module for controlling the optical signal propagating in an optical fiber To do.

[3] In the collimator lens module manufacturing apparatus, the inside is hollow, and the inside is provided with a frame forming mold in which inner hole pins and cores as mold parts are mounted. Insert the left optical fiber inner hole pin to form the hole to insert the fiber, the right optical fiber inner hole pin to form the right optical fiber hole, and the rear optical fiber. A rear optical fiber inner hole pin for forming a hole to be formed, and a collimator lens on the right end surface for forming at least one collimator lens forming cavity respectively on the left and right and rear sides in the frame forming mold the left core concave surface is formed of, after the right core concave surface of the collimator lens on the left end surface is formed, which before side concave surface of the collimator lens is formed And the core, the central core concave surface of each collimator lens in the lateral surface and the rear side are formed, placing the sprue Metropolitan formed from the exterior to the interior hollow, the more the sprue the plastic melt at an elevated temperature poured into a mold, remove the bore pin and the core after cooling, by mounting the optical fiber in a portion bore pin has been removed for the optical fiber, branched for controlling the optical signal propagating in an optical fiber A collimator lens module is formed.

[4] A collimator lens module, which is manufactured by the method for manufacturing a collimator lens module according to [1], [2] or [3].
[5] In the collimator lens module manufacturing apparatus, the inside is hollow, and an inner hole pin for the left optical fiber for forming a hole for inserting the left optical fiber therein, and an optical fiber on the right side a bore pin for the right of the optical fiber for forming a hole for inserting, for forming at least one of the collimator lens forming cavity respectively to the left or right, the left concave surface of the collimator lens to the right end surface is formed A frame forming mold having a core, a right core on which a concave surface of the collimator lens is formed on the left end surface, and a central core on which the formation surface of the collimator lens is formed on both the left and right surfaces, and melts at high temperature Means for pouring the plastic into the mold, and the core is removed after cooling to form a left collimator lens and a right collimator lens. Characterized by comprising the stage, and means for mounting the optical fiber in a portion bore pin has been removed for the optical fiber.

[6] In the collimator lens module manufacturing apparatus, the inside is hollow, and an inner hole pin for the left optical fiber for forming a hole for inserting the left optical fiber therein, and an optical fiber on the right side Insert the right optical fiber inner hole pin for forming the insertion hole, the rear optical fiber inner hole pin for forming the rear optical fiber insertion hole, and the front optical fiber. An inner-hole pin for an optical fiber on the front side for forming a hole, and a left-side core on which a concave curved surface of a collimator lens is formed on the right end surface for forming at least one collimator lens forming cavity on each of the left and right sides the right core concave surface of the collimator lens on the left end surface is formed, a front core concave surface of the collimator lens on the rear side is formed, a collimator before side With a side of the core after the concave surface of the lens is formed, the frame forming mold having a central core which concave surface of each collimator lens back and forth and left and right surfaces are formed, the gold plastic melted at high temperatures Means for pouring into a mold, means for removing the core after cooling to form left and right collimator lenses, and means for attaching an optical fiber to a portion where the inner hole pin for the optical fiber is removed. Features.

[7] In the collimator lens module manufacturing apparatus, the inside is hollow, and an inner hole pin for the left optical fiber for forming a hole for inserting the left optical fiber therein, and an optical fiber on the right side Inner hole pin for the right optical fiber for forming the hole to be inserted, inner hole pin for the rear optical fiber for forming the hole for inserting the rear optical fiber, and left and right and rear collimator lens formation to form a use cavity, and the left core concave surface of the collimator lens to the right end surface is formed, and the left core concave surface of the collimator lens on the left end surface is formed, the concave surface of the collimator lens to the left end surface and right core but formed, the side of the core after the concave curved surface of the collimator lens to the front side is formed, the concave surface of each collimator lens in the lateral surface and the rear side is formed A frame forming mold having a central core which, means for pouring plastic melted at high temperature to the mold, remove the core after cooling, means for forming left and right and rear of the collimator lens, the light And means for attaching an optical fiber to a portion where the inner hole pin for the fiber is removed.

  ADVANTAGE OF THE INVENTION According to this invention, the collimator lens module which can be manufactured cheaply and easily can be provided.

The collimator lens module manufacturing method of the present invention includes a frame forming mold in which an inner hole pin and a core, which are mold parts, are mounted, and the left side light is provided in the mold. An inner hole pin for the left optical fiber for forming a hole for inserting the fiber, an inner hole pin for the right optical fiber for forming a hole for inserting the right optical fiber, and the inside of the mold for frame formation Left core with a concave curved surface of the collimator lens formed on the right end surface and a right core with a concave curved surface of the collimator lens formed on the left end surface for forming at least one collimator lens forming cavity on each of the left and right sides When the central core concave surface of each collimator lens on the left and right both sides is formed, a sprue Metropolitan formed from the exterior to the interior hollow place, melted at high temperature Plasti Poured therein from the sprues in the mold, remove the bore pin and the core after cooling, the optical fiber is mounted in a portion bore pin has been removed for the optical fiber, the optical signal propagating in an optical fiber An inline collimator lens module for control is formed.

Hereinafter, embodiments of the present invention will be described in detail.
1 is an exploded (before setting) schematic view of a collimator lens module manufacturing apparatus according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of the manufacturing apparatus of FIG. 1, and FIG. FIG. 2B is a sectional view in the vertical direction. FIG. 3 is a schematic view showing a state in which the collimator lens module manufacturing apparatus is set, FIG. 4 is a cross-sectional view thereof (Part 1), and FIG. 4A is a horizontal cross-sectional view at the gate level, 4B is a sectional view in the vertical direction, FIG. 5 is a sectional view (part 2) of the manufacturing apparatus in FIG. 3 , and FIG. 5A is a horizontal section at the height of the inner hole pin. FIG. 5B is a vertical sectional view thereof.

In these drawings, reference numeral 1 denotes a frame forming mold in which the inside is hollow and a mold part composed of a pin and a core is mounted, and 2 is formed by the frame forming mold 1 and other mold parts. Frame forming cavity 3 is a left optical fiber inner hole pin for forming a hole for inserting a left optical fiber, and 4 is a right light for forming a hole for inserting a right optical fiber. An inner hole pin for fiber 5 is a left core (a portion to be removed after molding of the left collimator lens) on the right end surface, and a concave surface of the collimator lens is formed on the left end surface. that the right of the core (a portion is pulled out after molding the right of the collimator lens), 7 forming the central core (left and right of the collimator lens concave surface of each of the left and right both sides collimator lens is formed Unplugged in part), the left side of the collimator lens forming cavity 8 communicating with the frame forming cavity 2, the right side of the collimator lens forming cavity 9 communicating with the frame forming cavity 2, 11 sprue, 13 left side A hole for mounting the inner hole pin 3 for the optical fiber , 14 is a hole for mounting the inner hole pin for the right optical fiber, and 17 is a hole for mounting the central core 7.

As shown in FIG. 1, a frame forming mold 1 that is hollow and has optical fiber inner hole pins 3 and 4 and cores 5, 6, and 7 inside includes a gate 11, an optical fiber on the left side A mounting hole 13 for the inner hole pin 3 for use, a mounting hole 14 for the inner hole pin 4 for the right optical fiber, and a mounting hole 17 for the central core 7 are formed. 3 and 4 and the cores 5, 6 and 7 are shown mounted in the frame forming mold 1. FIG.

As shown in FIG. 3, plastic melted at a high temperature is poured into the frame forming mold 1 of the manufacturing apparatus of the collimator lens module in which the inner hole pins 3 and 4 and the cores 5, 6 and 7 are set, By removing the pins 3 and 4 and the cores 5, 6 and 7 after cooling, an inline collimator lens module for controlling an optical signal propagating in the optical fiber can be formed.

6 is a schematic view of a collimator lens module manufactured by the manufacturing apparatus according to the first embodiment of the present invention , FIG. 7 is a cross-sectional view of FIG. 6, and FIG. 7 (a) is a horizontal cross-sectional view of FIG. FIG. 7B is a vertical sectional view thereof. Here, description will be made with reference to FIGS.
In these figures, 21 is a frame formed by the frame forming mold 1, 22 is a left optical fiber mounted in the mounting hole 13 of the left optical fiber inner hole pin 3, and 23 is the right light. The right optical fiber 24, which is mounted in the mounting hole 14 of the fiber inner hole pin 4, is made of plastic formed in the left collimator lens forming cavity 8 between the left core 5 and the central core 7. The left collimator lens 25 is a right collimator lens 25 made of plastic formed in the right collimator lens forming cavity 9 between the right core 6 and the central core 7, and 26 is the left core 5 removed. The formed hollow portion 27 is a hollow portion formed by removing the right core 6, and 28 is a hollow portion formed by removing the central core 7.

Thus, according to the present invention, a plastic dissolved in a high temperature, the casting frame forming mold 1 shown in FIGS. 1 to 5, an inner hole pins 3 and 4 and the core 5,6,7 after cooling 6 to 7, the left optical fiber 22 -the left collimator lens 24 -the right collimator lens 25 -the right optical fiber 23 is accurately arranged in-line at a predetermined position of the frame 21. Is done. In addition, since it can be manufactured collectively with plastic, it can be manufactured very easily.

  Here, since the optical functional element is disposed between the collimator lenses 24 and 25, the interval (L) between the collimator lenses 24 and 25 is 10 mm as a rough guide. The structural parameters of each part of the optical coupler required for this purpose were theoretically designed and confirmed to be parameter values that can be produced. The radius of curvature of the collimator lenses 24 and 25 may be the same value or different values corresponding to the parameters of the left optical fiber 22 and the right optical fiber 23.

According to the present invention, since it is configured as described above, a precise inline-type collimator lens module can be easily manufactured, and the cost can be reduced.
FIG. 8 is a perspective view showing an apparatus in which the above-described collimator lens modules according to the second embodiment of the present invention are arrayed.
In this figure, 30 is a collimator lens module device, 31 to 34 are collimator lens modules manufactured according to the present invention, 35 is a left optical fiber, and 36 is a right optical fiber.

Here, the collimator lens modules 31 to 34 manufactured according to the present invention are arranged side by side to form an array.
Figure 9 is a collimator lens for forming a third two collimator lenses on one side a modification of the apparatus for manufacturing a collimator lens module according to the first embodiment described above illustrates an example (four collimator lens in total) of the present invention FIG. 7A is a schematic cross-sectional view of the module, FIG. 7A is a horizontal cross-sectional view thereof, and FIG. 7B is a vertical cross-sectional view thereof.

In these drawings, 41 is a frame, 42 is a left optical fiber, 43 is a right optical fiber, 44 is a hollow portion formed by removing the first core from the left side, and 45 is the first core and the left side from the left side. The first collimator lens made of plastic formed in the first collimator lens forming cavity from the left side between the first core and the second core, 46 is a hollow portion formed by removing the second core from the left side 47 is the second collimator lens from the left side made of plastic formed in the cavity for forming the second collimator lens from the left side between the second core from the left side and the central core, and 48 is the center core removed. The formed cavity part 49 is a second collimator lens forming cavity on the right side between the second core and the central core from the right side. Second collimator lens from the right side of a plastic which is made, during the 50 hollow portion formed unplugged the second core from the right, 51 and the first core from the second core and the right side from the right side The first collimator lens made of plastic and formed in the cavity for forming the collimator lens, 52 is a hollow portion formed by removing the first core from the right side.

Thus, a precise in-line type collimator lens module in which two collimator lenses 45, 47; 49, 51 are formed on both sides can be easily manufactured, and the cost can be reduced.
Figure 10 is a schematic view of a collimator lens module having a fourth input to the three-way a modification of the apparatus for manufacturing a collimator lens module according to the first embodiment described above illustrates an example port of the present invention, FIG. 10 (a) Is a horizontal sectional view of the X-axis, FIG. 10B is a vertical sectional view along the left-right direction, and FIG. 10C is a vertical sectional view along the front-rear direction.

  In this figure, 61 is a frame, 62 is an optical fiber on the left side, 63 is an optical fiber on the right side, 64 is an optical fiber on the rear side (shown on the upper side in the drawing), and 65 is formed by removing the core on the left side. 66 is a left collimator lens made of plastic formed in the left collimator lens forming cavity between the left core and the central core, and 67 is a hollow portion formed by removing the central core. 68 is a right collimator lens made of plastic formed in a cavity for forming a collimator lens between the right core and the central core, 69 is a hollow portion formed by removing the right core, and 70 is a central core. A rear collimator lens made of plastic formed in a cavity for forming a rear collimator lens between the rear core and 71 is a rear side Cavity portion in which the core is formed unplugged, 72 is an optical functional part which is arranged in the hollow portion 67 formed unplugged the central core.

In the collimator lens module of this embodiment, the input / output ports are arranged in three directions. Further, by arranging optical functional components (filter, beam splitter) obliquely with respect to the optical axis in the hollow portion 67 formed by removing the central core, it is possible to output to a plurality of outlets.
Figure 11 is a schematic view of a collimator lens module having a fifth four-way input and output ports which is a modification of the apparatus for manufacturing a collimator lens module according to the first embodiment described above illustrates an embodiment of the present invention.

In this figure, the cavity portion 67 central core is formed unplugged in FIG 10, a cavity portion 80 formed unplugged the central core of the cross-shaped, the collimator lens forming cavity in front of that A front collimator lens 81 made of plastic and a front optical fiber 82 are provided.
In the embodiment shown in FIG. 10, there are three input / output ports. However, as shown in FIG. 11, four input / output ports in the front, rear, left and right directions are arranged in this embodiment.

Further, a plurality of input / output ports larger than that may be formed.
Needless to say, the number of front, rear, left and right collimator lenses is not limited to one, and a plurality of collimator lenses can be formed.
Since it comprised in this way, a multifunctional branch type collimator lens module can be manufactured easily and cost can be reduced.

  In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

  The collimator lens module of the present invention can be used as a fiber-type collimator for an inexpensive and precise inline type or branch type optical device.

It is a decomposition | disassembly (before setting) schematic diagram of the manufacturing apparatus of the collimator lens module which shows 1st Example of this invention. It is sectional drawing of the manufacturing apparatus of FIG. 1 of this invention. It is a schematic diagram which shows the state by which mold components were set to the manufacturing apparatus of the collimator lens module of 1st Example of this invention. FIG. 4 is a cross-sectional view (part 1) of FIG. 3. It is sectional drawing (the 2) of FIG. It is a schematic diagram of a co re meter lens module manufactured by the manufacturing apparatus of the first embodiment of the present invention. It is sectional drawing of FIG. It is a perspective view which shows the apparatus which arrayed the above-mentioned collimator lens module which shows 2nd Example of this invention. Schematic of the collimator lens module that forms a the third one obtained by modifying the production apparatus of the collimator lens module according to the first embodiment described above illustrates an embodiment of the present invention the two collimator lenses (total of four collimator lens) FIG. Is a schematic view of a collimator lens module having a fourth output port to a three-way a modification of the apparatus for manufacturing a collimator lens module according to the first embodiment described above illustrates an embodiment of the present invention. It is a schematic diagram of the collimator lens module which has the input / output port in the four directions which deform | transformed the manufacturing apparatus of the collimating lens module of 1st Example mentioned above which shows 5th Example of this invention.

DESCRIPTION OF SYMBOLS 1 Frame forming die which mounts pin and core inside hollow 2 Frame forming cavity 3 Inner hole pin for left optical fiber 4 Inner hole pin for right optical fiber 5 Concave surface of collimator lens on right end surface central core 8 left collimator lens forming cavity 9 right side concave surface of the right core 7 on the left and right both sides collimator lens concave surface is formed is formed of the collimator lens to the core 6 the left end surface of the left but formed Cavity for forming a collimator lens 11 Plastic pouring gate 13 Hole for mounting an inner hole pin for the left optical fiber 14 Mounting hole for an inner hole pin for the right optical fiber 17 Mounting holes 21 and 41 for the center core , 61 Frame 22, 35, 42, 62 Left optical fiber 23, 36, 43, 63 mounted in mounting hole Right optical fiber 24, 66 attached to the hole 24, 66 Left collimator lens 25, 68 Right collimator lens 26, 65 Hollow part 27 formed by removing the left core 27, 69 Right core removed Cavity portion 28, 48, 67 Cavity portion formed by removing the central core 30 Collimator lens module device 31-34 Collimator lens module 44 Cavity portion formed by removing the first core from the left side 45 First part from the left side Collimator lens 46 Cavity portion formed by removing the second core from the left side 47 Second collimator lens from the left side 49 Second collimator lens from the right side 50 Cavity portion formed by removing the second core from the right side 51 Right side The first collimator lens from 52 The first core from the right side is pulled out Cavity 64 formed in the back 64 Optical fiber 70 in the back 70 Collimator lens 71 in the back Cavity formed by removing the back core 72 Optical functional parts arranged in the cavity formed by removing the core in the center 80 Cavity formed by removing the central core of the cross shape 81 Front collimator lens 82 Front optical fiber

Claims (7)

(A) The inside is hollow, the inside is provided with a mold for frame formation in which an inner hole pin and a core as mold parts are mounted, and a hole for inserting the left optical fiber is formed in the mold. A left optical fiber inner hole pin, a right optical fiber inner hole pin for forming a right optical fiber insertion hole, and at least one collimator on each of the left and right sides of the frame forming mold. To form a lens forming cavity, a left core with a concave curved surface of the collimator lens on the right end surface , a right core with a concave curved surface of the collimator lens on the left end surface, and a collimator lens on each of the left and right sides A central core on which a concave curved surface is formed ;
(B) arranging a gate formed from the outside into a hollow interior;
( C ) Pour plastic melted at high temperature from the gate into the mold,
(D) venting said bore pin and the core after cooling, by mounting the optical fiber in a portion bore pin has been removed for the optical fiber, in-line collimator for controlling an optical signal propagating in an optical fiber A method of manufacturing a collimator lens module, comprising forming a lens module. (A) The inside is hollow, the inside is provided with a mold for frame formation in which an inner hole pin and a core as mold parts are mounted, and a hole for inserting the left optical fiber is formed in the mold. A left optical fiber inner hole pin, a right optical fiber inner hole pin for forming a right optical fiber insertion hole, and a rear optical fiber insertion hole for forming a rear optical fiber insertion hole. a bore pin for an optical fiber on the side, front and inner hole pins for optical fiber of the front to form a hole for inserting the optical fibers, each of the at least one collimator in the lateral longitudinal direction in the frame forming mold to form a lens forming cavity, a collimator les and left core concave surface of the collimator lens to the right end surface is formed, and the right core concave surface of the collimator lens is formed on the left end face, the rear side A front core concave surface of the figure is formed, the side of the core after the concave curved surface of the collimator lens to the front side is formed, the central core concave surface of each of the right and left front and rear surfaces collimator lens is formed,
(B) arranging a gate formed from the outside into a hollow interior;
( C ) Pour plastic melted at high temperature into the mold from the gate ,
(D) venting said bore pin and the core after cooling, by mounting the optical fiber in a portion bore pin has been removed for the optical fiber, branched collimator for controlling an optical signal propagating in an optical fiber A method of manufacturing a collimator lens module, comprising forming a lens module. (A) The inside is hollow, the inside is provided with a mold for frame formation in which an inner hole pin and a core as mold parts are mounted, and a hole for inserting the left optical fiber is formed in the mold. A left optical fiber inner hole pin, a right optical fiber inner hole pin for forming a right optical fiber insertion hole, and a rear optical fiber insertion hole for forming a rear optical fiber insertion hole. a bore pin for an optical fiber on the side, for forming at least one collimator lens forming cavity left and right and rear in the frame forming mold, left concave curved surface of the collimator lens to the right end surface is formed the core and the right core concave surface of the collimator lens on the left end surface is formed, prior to the side of the core after the concave curved surface of the collimator lens on the side surface is formed, respectively collimator Le to the right and left side and the rear side A central core concave surface of the figure is formed,
(B) arranging a gate formed from the outside into a hollow interior;
( C ) Pour plastic melted at high temperature into the mold from the gate ,
(D) venting said bore pin and the core after cooling, by mounting the optical fiber in a portion bore pin has been removed for the optical fiber, branched collimator for controlling an optical signal propagating in an optical fiber A method of manufacturing a collimator lens module, comprising forming a lens module.   The collimator lens module manufactured by the manufacturing method of the collimator lens module of Claim 1, 2, or 3. (A) The inside is hollow, and an inner hole pin for the left optical fiber for forming a hole for inserting the left optical fiber therein and a hole for inserting the right optical fiber are formed therein. a bore pin for the right of the optical fiber, for forming at least one of the collimator lens forming cavity respectively to the left or right, and left sides of the core concave surface of the collimator lens is formed on the right end face, the collimator lens on the left end surface A frame forming mold having a right core on which the concave curved surface is formed and a central core on which the concave curved surface of the collimator lens is formed on both the left and right sides ,
(B) means for pouring the plastic melted at a high temperature into the mold;
(C) means for removing the core after cooling and forming a left collimator lens and a right collimator lens;
(D) means for attaching the optical fiber to the portion where the inner hole pin for the optical fiber is removed;
An apparatus for manufacturing a collimator lens module, comprising: (A) The inside is hollow, and an inner hole pin for the left optical fiber for forming a hole for inserting the left optical fiber therein and a hole for inserting the right optical fiber are formed therein. An inner hole pin for the right optical fiber, an inner hole pin for the rear optical fiber for forming a hole for inserting the rear optical fiber, and a front hole for forming the hole for inserting the front optical fiber a bore pin for an optical fiber, a concave right and left to form at least one of the collimator lens forming cavity, respectively before and after the left core concave surface of the collimator lens to the right end surface is formed, a collimator lens on the left end surface the right core curved are formed, a front core concave surface of the collimator lens on the rear side is formed, the side of the core after the concave curved surface of the collimator lens to the front side is formed, the right and left front and rear Each includes a frame forming mold having a central core which concave surface of the collimator lens is formed,
(B) means for pouring the plastic melted at a high temperature into the mold;
(C) means for removing the core after cooling and forming left and right and front and rear collimator lenses;
(D) means for attaching the optical fiber to the portion where the inner hole pin for the optical fiber is removed;
An apparatus for manufacturing a collimator lens module, comprising: (A) The inside is hollow, and an inner hole pin for the left optical fiber for forming a hole for inserting the left optical fiber therein and a hole for inserting the right optical fiber are formed therein. A right optical fiber inner hole pin, a rear optical fiber inner hole pin for forming a rear optical fiber insertion hole, and left and right and rear collimator lens forming cavities; The left core with the concave surface of the collimator lens formed on the right end surface, the right core with the concave surface of the collimator lens formed on the left end surface, and the rear core with the concave surface of the collimator lens formed on the front side surface And a frame forming mold having a central core on which the concave curved surface of the collimator lens is formed on each of the left and right surfaces and the rear surface ,
(B) means for pouring the plastic melted at a high temperature into the mold;
(C) means for removing the core after cooling and forming left and right and rear collimator lenses;
(D) means for attaching the optical fiber to the portion where the inner hole pin for the optical fiber is removed;
An apparatus for manufacturing a collimator lens module, comprising:

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