KR100262346B1 - Mechanical optical switch and the manufacturing method thereof - Google Patents

Abstract

PURPOSE: A mechanical optical switch is provided to ensure precise mechanical operation and easy manufacturing by having a simple mechanical structure and reducing manufacturing steps. CONSTITUTION: A mechanical optical switch includes a rotary arm(1), a lens arrangement plate(2), a coaxial support(3), a motor(4), collimator linkers(5) and a support. The central axis end of the rotary arm(1) is connected to the motor(4). The linkers(5) are connected around the other end of the rotary arm(1). The rotary arm(1) has a rotary lens hole for coupling the linkers(5) and an adjustment key hole. The lens arrangement plate(2) supports N number of links(5). The coaxial support(3) is connected with the lens arrangement plate(2) under the same. The linker(5) in the rotary arm(1) is positioned in one of the linkers(5) in the lens arrangement plate(2) through the motion of the motor(4).

Description

Mechanical optical switch and its manufacturing method

The present invention relates to a mechanical optical switch and a method for manufacturing the same, in particular for monitoring the optical path and optical cable test using a collimator linker and a motor configured to reduce light loss by attaching a small optical lens to the end of the optical fiber and parallelly expanding the light. The present invention relates to a mechanical optical switch that can be widely used for optical related tests.

In general, optical switches are used in the field of test and system related to optical communication and optics, and are located between the optical tester and the object under test.

1a to 1c is a view showing an example of the use of a general mechanical optical switch,

1A is a diagram illustrating an example of measuring optical device characteristics using a 1: N optical switch.

FIG. 1B is a diagram illustrating an example of measuring optical cable characteristics using a 1: N optical switch.

In particular, as shown in FIGS. 1A and 1B, the optical switches 15a and 15b are necessary in the middle in order for the test light from the optical tester 18 to be connected to the N objects 17. These optical switches 15a and 15b are mainly composed of a ratio of 1: N or 2: N to automatically or manually connect N test objects 17 to one optical test device 18.

However, in some cases, it may be an optical test device composed of two optical test devices, for example, one light source and one optical power meter.

FIG. 1C is a diagram for testing characteristics of an optical cable using a 2: N optical switch.

In general, the transmission of one input light to one of the N selected ports without light loss requires precise motor control technology, precise mechanical processing, and accurate assembly.

In addition, the optical tester is used in connection with an optical fiber. Since the light transmission diameter of the optical fiber is usually very small, ranging from 8 microns to 100 microns, the transmission of light from the optical fiber to the optical fiber causes a lot of optical loss.

In consideration of the problems of many optical losses generated when the light is transmitted by the optical fiber as described above, a small optical lens is attached to the end of the optical fiber to enlarge the light in parallel to reduce the optical loss. Attaching the lens is called a collimator linker (hereinafter referred to as 'linker').

Although the optical switch using the linker has been developed in part, its structure is complicated and there are many difficulties in manufacturing, and also automation is difficult in manufacturing, and the manufacturing cost and manufacturing time are greatly increased due to almost manual manufacturing. There is a problem that follows.

Therefore, in order to solve the above problems, a light-related test, such as for monitoring the optical path and the test of the optical cable by using a linker and a motor configured to attach a small optical lens to the end of the optical fiber and expand the light in parallel to reduce the optical loss. The purpose of the present invention is to provide a mechanical optical switch and a method of manufacturing the same, which can be widely used in the manufacturing of optical switches, and to avoid the complicated mechanical configuration in the optical switch, which can be manufactured easily by reducing the number of manufacturing processes.

1A to 1C show an example of use of a general mechanical optical switch.

2 is a perspective view of a mechanical optical switch of the present invention.

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

Figure 4a is an exploded cross-sectional view of the mechanical optical switch of the present invention.

4B is a plan view of each part shown in FIG. 3A.

Figure 5a shows the basic configuration of a linker according to the technique of the present invention.

5B is a diagram showing an example of the configuration of a linker.

5c is a view for explaining the optical loss characteristic of the linker.

Figure 6a is a cross-sectional view of the jig attached to the lower part of the mechanical optical switch of the present invention for explaining the manufacturing method of the mechanical optical switch of the present invention.

Figure 6b is a plan view of the coaxial support of the present invention is fixed on the coaxial adapter.

6C is a plan view of the coaxial key shown in FIG. 5B.

Figure 6d is a cross-sectional view showing the step of placing the lens array plate upside down on the type plate according to the mechanical optical switch manufacturing method of the present invention.

FIG. 6E is a plan view of the type plate shown in FIG. 5D.

FIG. 7 is a cross-sectional view showing a method of attaching a fiber mounted optical fiber to a lower portion of a linker mounted in a lens array plate array hole; FIG.

* Explanation of symbols for main parts of the drawings

1: Rotating Arm 1a: Rotating Arm Lens Hole

1b: Rotating arm alignment key 1c: Motor shaft insertion hole

1d: U type lens hole 1e: Ottogi type lens hole

1f: rotating arm fixture 2: lens array plate

2a: lens plate array hole 2b: array alignment key hole

2c: fastening hole 2d: type fastening part

2e: center hole of array plate 3: coaxial support

3a: Coaxial M type fastening part 3b: Coaxial V groove

3c: coaxial taper fastening part 4: motor

4a: motor shafter 5: linker

5a: optical fiber 5b: capillary (glass capillary)

5c: optical lens (refractive index lens) 5d: anti-reflective coating

5e: housing 5f: inclined optical lens

5g: Inclined Capillary 5h: Aspherical Lens

5i: refractive index bonding adhesive 6: coaxial adapter

6a: Coaxial F type fastening part 6b: V groove fixing device

7: coaxial rotating body 8: type plate

8a: lens contact plane 8b: adhesive material

9: Coaxial Key 9a: Coaxial Key Inner Diameter

9b: coaxial key outer diameter 10: alignment key

11 spacer 12 lens clamp

13: precision positioning device 14: stand

15a, 15b: optical switch 16: light source

17: optical test object 18: optical test device

19a, 19b: tightening screw

Mechanical optical switch of the present invention for achieving the above object

A lower pedestal;

A coaxial support having a lower portion fixed to the pedestal, a coaxial taper fastening portion having a tapered vibrating toward the lower portion of the lower central portion, and a hollow space portion having a predetermined size formed therein;

A motor seated in an empty space in the coaxial support, the motor shaft protruding upward by a predetermined length to the top, and being rotated by a controller within a predetermined rotation angle range;

Holes of a predetermined size are formed in the center to accommodate the motor shafter in the inner center, and are fixed to the coaxial support and the upper surface of the motor by fixing means, respectively. A lens array plate in which N array holes in the longitudinal direction for mounting the linker are formed radially equal in radius and at regular intervals from the central axis thereof;

One side is fixed to the motor shafter protruding to the upper portion of the lens array plate, the other side is rotated in which the lens hole for linker mounting is formed on the same line in the vertical direction with the array hole formed on the lens array plate Arms;

And a linker which is respectively attached to the lens holes of the rotating arm and the N array holes on the lens array plate.

In addition, the manufacturing method of the mechanical optical switch of the present invention for achieving the above object

The lens array plate 2 is placed upside down on the U-shaped flat plate 8, and then an adhesive substance is applied to the circumferential surface of the optical lens, and then N array holes 2a in the lens array plate 2 are applied. A first step of binding the optical lens to the lens;

The adhesive material is hardened by heating the binding part in a heating furnace so that the optical lens is firmly adhered to the array hole 2a, and after cooling at room temperature for a predetermined time, both ends of the optical lens are washed with a cleaning liquid. A second step of washing;

A third step of attaching the linker (5) to the rotating arm lens hole (1a) of the rotating arm (1) in the same manner as in the first and second steps;

A fourth step of fastening the coaxial adapter (6) to the upper part of the coaxial rotating body operated at an angle equal to the dividing angle of the arrangement hole (2a) of the lens array plate (2) by manual or automatic control;

A fifth step of mounting a coaxial support (3) on the coaxial adapter (6) and then fixing it with a fastening device (6b);

Insert the motor 4 into the coaxial support 3, put the lens array plate 2 on the top, and then insert the coaxial key 9 into the center hole 2e of the lens array plate 2. Then, by fixing the motor 4, the lens array plate 2 and the lens array plate 2 and the coaxial support 3, respectively, the components of the motor, the lens array plate and the coaxial support are coaxial, and then A sixth step of removing the coaxial key;

A seventh step of fastening the rotating arm (1) to the motor (4), using the rotating plate fixing device (1f) in a state in which the rotating arm (1) and the lens array plate (2) are separated from each other by a predetermined distance;

An eighth step of coupling the capillary (5b) into which the optical fiber (5a) is inserted into the lower surface of any one of the N optical lenses (5c, 5f) mounted on the lens array plate (2);

A ninth step of repeatedly performing the above steps on the remaining N-1 optical lenses to couple the capillary 5b into which the optical fiber is inserted;

The optical switch module assembled from the coaxial adapter (6) is characterized in that it comprises a tenth step of fastening on the pedestal (14).

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view of a mechanical optical switch according to the present invention;

3 is a cross-sectional view taken along line AA of FIG. 2.

Referring to the drawings, the mechanical optical switch of the present invention is composed of a rotating arm (1), lens array plate (2), coaxial support (3), motor (4), collimator linker (5), pedestal (14) It is shown.

4A is an exploded cross-sectional view of a mechanical optical switch according to the present invention;

4B is a plan view of the component shown in FIG. 4A.

As shown in the figure, the central axis end of the rotary arm 1 is connected to the motor 4, the linker 5 is attached near the other end of the rotary arm (1). The rotating arm 1 has a rotating arm lens hole 1a, which is a hole for attaching the linker 5, and an alignment key hole 1b for aligning the rotating arm 1 when the rotating arm 1 is attached to the motor shaft. have.

The central end of the rotating arm 1 is connected to the motor shaft 4a and rotated according to a constant step angle of the motor, and selected by the motor controller of the N linkers 5 mounted on the lens array plate 2. One linker and optical axis coincide to transmit light.

The rotation radius of the rotating arm lens hole 1a coincides with the rotation radius of the array hole 2a formed on the lens array plate 2.

In addition, the lens array plate 2 is a plate for mounting the N links 5, and includes an array hole 2a, a key hole 2b for alignment and alignment, a fastening hole 2c, and a U-shaped fastening portion 2d. ) And plate center holes 2e are formed, respectively.

The arrangement holes 2a are for mounting the N linkers 5 on the circumference of the lens array plate 2 according to the dividing angle of the step motor 4 mounted therein, and the arrangement alignment key holes 2b It is located at the same radial position from the central axis of the rotating plate element key hole 1b and the motor 4, and the center line of the arrangement alignment key hole 2b is on the same horizontal line as the center line of any first hole of the arrangement hole 2a. Will be located.

The coaxial support 3 is formed of the m-shaped fastening part 3a formed in the upper outer surface, the coaxial V groove 3b of the lower part, and the taper fastening part 3c.

In addition, the coaxial support 3 is connected to the lens array plate 2 placed thereon, the U-shaped fastening portion 2d of the lens array plate 2 and the coaxial M-shaped fastening portion 3a of the coaxial support 3. ) Have the same diameter and have a shape in which the corners are shaved diagonally as shown in FIG. 4 so as to be automatically centered during assembly.

The coaxial V-shaped groove 3b formed along the lower outer circumference of the coaxial support 3 is for ease of assembly and fabrication. The V groove fixing device of the coaxial adapter (6 in FIG. 6a) located at the lower portion thereof ( 6b).

The motor 4 is always a constant rotational angle by a controller (not shown) as a step motor, which means that the linker 5 mounted on the rotating arm 1 is one of N linkers mounted on the lens array plate 2. Position it correctly in one linker (5).

The pedestal 14 allows the linker 5 to be mounted to the lens array plate 2 and finally connected to the pedestal 14 as a fastener so that it can be used to be connected to another support (not shown).

5 to 5c are diagrams showing an example of the configuration of the linker of the present invention.

Referring to FIG. 5A, the linker 5 generally includes the optical fiber 5a, the capillary 5b, and the optical lens 5c, and the predetermined length of the optical fiber 5a is formed into the capillary 5b. The capillary 5b and the optical lens 5c are attached with an adhesive made of a refractive index matching material such as epoxy.

In this case, the optical lens 5c may be a planar optical lens or an aspherical lens 5h, and a housing 5e may be covered on the outside thereof.

The capillary 5b and the optical lens 5c are bound by an adhesive made of an index-matching material such as epoxy, which receives light diameters of several microns from the optical lens and increases the diameter of the light by several hundred microns. It makes light, or conversely, enlarges parallel light into the diameter of light of several microns and transmits it to the optical fiber without loss.

At this time, in order to minimize the loss of light, an anti-reflective coating agent (5d) is applied to the surface of both ends of the optical lens, and the light incident from the optical fiber (5a) is reflected back to the air from the surface of the optical lens (5c) to return to the optical fiber (5a) In order to minimize fineness, one end surface of the inclined capillary 5g and the inclined green lens 5f is inclined to have an angle between about 8 degrees and 10 degrees. Alternatively, parallel light may be produced using the aspherical lens 5h.

FIG. 5C is a diagram illustrating optical loss characteristics of the linker, and the main characteristics of the linker will be described with reference to the drawings.

The shape of the light loss characteristic is different depending on the arrangement of the three linkers below. In other words,

1) If you are facing each other exactly, that is, if the optical axes are exactly the same,

2) The optical axis is shifted parallel to the other

3) When the optical axis is shifted with some angle from the other

In the case of 1), the optical loss is about 0.3-0.4 dB, and in the case of 2) the optical axis is parallel to each other, the optical loss increases exponentially as the deviation is increased. Usually, it has a loss value of about 1dB within ± 10㎛.

In the case of 3), the optical axis is shifted with a certain angle from the other one, and as the angle θ becomes larger, the optical loss increases more severely than in the case of 2). Therefore, when developing the optical switch using the linker (5) it can be seen that the precision of each component and the precise alignment between them is very important.

Hereinafter, a manufacturing process for manufacturing the mechanical optical switch of the present invention will be described.

6a to 6e are views for explaining the manufacturing process of the mechanical optical switch of the present invention,

Figure 6a is an exploded cross-sectional view of the jig used together when manufacturing the mechanical optical switch of the present invention coupled together,

6b is a plan view of the coaxial support shown in FIG.

FIG. 6C is a plan view of the coaxial key shown in FIG. 6A.

First, the method for manufacturing the mechanical optical switch of the present invention is a method of manufacturing in a state in which the capacities 5b and 5g and the optical lenses 5c and 5f are separated, and the capacities 5b and 5g and the optical lens ( There is another method of fabrication with 5c, 5f attached without housing 5e or with linker 5 already made by housing 5e.

At this time, the capillaries 5b and 5g have a thin tube having an inner diameter having the same size as the outer diameter of the optical fiber 5a, and after coupling the optical fiber 5a to the tube, the inserted optical fiber 5a The end is polished to be flattened and then used. This state is also referred to as capillary.

First, a method of manufacturing the capillary 5b and 5g and the optical lenses 5c and 5f, which are the first method for manufacturing the mechanical optical switch of the present invention, without the housing 5e will be described.

6d is a cross-sectional view showing the step of placing the lens array plate 2 in an inverted state on the type plate 8 according to the mechanical optical switch manufacturing method of the present invention,

FIG. 6E is a plan view of the type plate 8 shown in FIG. 6D.

In the first step, as shown in FIG. 6D and FIG. 6E, the lens contact plane 8a overlies the lens array plate 2 on the hot oil U-shaped plate 8. An adhesive material is applied to each of the N array holes 2a and the circumferential surfaces of the optical lenses 5c and 5f in the lens array plate 2 and then mounted.

In this case, the adhesive material applied to the circumferential surfaces of the optical lenses 5c and 5f is epoxy, for example epoxy 353ND, and the material becomes liquid at about 40 to 50 ° C., for example, a temperature higher than the temperature. At 80 ° C, it has a characteristic of changing to a completely hard state such as glass.

Therefore, in order for the optical lenses 5c and 5f to be firmly adhered to the lens plate arraying holes 2a, the optical lenses 5c and 5f are heated in a heating furnace to harden the adhesive material and maintained at 70 to 80 ° C.

In the second process, the N optical lenses are mounted on the lens array plate 2, and then placed in a heating furnace and heated for a predetermined time so as to be strongly adhered to the array holes 2a. Then, after cooling the heat in a high temperature state at room temperature, both end surfaces of the optical lens (5c, 5f) is cleaned using a cleaning solution such as alcohol.

In the third step, the linker 5 is mounted in the same manner as in the second step even in the rotating arm lens hole 1a of the rotating arm 1, and then put into a heating furnace to be bonded or U-shaped without using an adhesive material. It is configured as the lens hole 1d and fastened with the lens fixing device (1g in FIG. 4B).

On the other hand, unlike the above case, as shown in FIG. 4B, the U-shaped lens hole 1d is formed like an pentagon-type lens hole 1e or O-type or U-type, and the linker 5 makes a circular rotating arm lens. After mounting to the hole (1a) in a vertical manner, and fasten with a lens fixing device (1g).

At this time, the lens fixing device (1g) may be a fixed screw having a flat end thereof, and in particular, the adhesive may be introduced at the same time so that the fixing screw can be completely fixed.

In the fourth step, the coaxial adapter 6 is firmly fastened to the coaxial rotating body (n in FIG. 6A) which moves automatically or manually. Here, the coaxial rotating body 7 can be operated at the same angle as the dividing angle of the arraying holes 2a of the lens array plate 2 by motor control.

As shown in Fig. 6b, the coaxial adapter 6 is provided with a V-groove fixing device 6b at three points divided by 120 degrees along the circumference, so that the coaxial support 6 before and after fabrication of the optical switch module is provided. Easily mounted and detached, and also has a coaxial tapered fastening portion (3c) in the lower center of the center to automatically secure a solid fastening to the F-shaped fastening portion (6a) of the coaxial adapter (6).

In the fifth step, the coaxial support 3 is mounted on the coaxial adapter 6 and fixed with the fastening device 6b.

In the sixth step, the motor 4 is placed straight in the coaxial support 3, and the lens array plate 2 is placed thereon. In the above state, the coaxial key (9 in Fig. 6a) is inserted into the inner center of the motor shaft 4a until the upper surface portion of the motor 4 touches and is pushed in through the lens array plate fastening hole 2c. (4) and the lens array plate (2) are firmly fixed with the fastening screw (19a). In this way, the components of the motor 4, the lens array plate 2, and the coaxial support 3 can be coaxial. The coaxial key 9 is removed in the coaxial state as described above.

Meanwhile, the coaxial key 9 is equal to the outer diameter of the motor shaft 4a, and the outer diameter 9b of the coaxial key is equal in size to the central inner diameter of the lens array plate 2 (2e in FIG. 4A). Therefore, the coaxial key 9 should be subjected to precise mechanical processing so that it can be attached to and detached from the inner diameter of the center of the motor shaft 4a and the lens array plate 2.

The seventh step is to fasten the rotary arm 1 to the motor 4, and the alignment key 10 coincides with the rotary arm alignment key hole 1b and the array alignment key hole 2b of the lens array plate 2. Insert it correctly. At this time, in order to prevent the rotating plate 1 and the lens array plate 2 from touching each other, a spacer 11 having a flat surface having a predetermined thickness is temporarily inserted. At this time, the outer diameter of the alignment key 10 should be precisely processed with a minimum mechanical tolerance so that the attachment and detachment with the two alignment key holes (1b, 2b).

Lock the rotary arm fixing device (1f) in the state in which the alignment key 10 is inserted, and then removes the alignment key 10 and the spacer (11). The thickness of the spacer 11 is such that the surfaces of the rotating arm linker 5 facing each other and the surfaces of the lenses 5c and 5f or the linker mounted on the lens array plate are separated by a distance of about 2-5 mm. .

The eighth process will be described with reference to FIG.

It is a job of coupling the capillary 5b in which the optical fiber 5a is inserted to the N green lenses 5c and 5f mounted on the lens array plate 2.

The rotating arm 1 with the linker 1 is moved to the position of the first green lens 5c.

The lens clamp 12 is attached to a moving mechanism capable of basic vertical and horizontal movements such as X, Y, and Z, and the required angles θ _x , θ _y , and θ _z , and the capillaries 5b and 5g with the forceps 12. ) And the linker (5) and the green lens (5c, 5f) is aligned so that the optical axis is exactly made. In this case, in order to confirm the alignment of the optical axis, the light source is connected to the rotary arm linker 5 and the optical fiber 5a of the lens array plate 2 is connected to the optical power meter. After the alignment is completed, the refractive index matching adhesive 5i is applied to the cross-sections of the capillaries 5b and 5g, and the final adjustment is completed by attaching the lens 5c and 5f together with the lenses 5c and 5f to make the alignment again optimal. When the above operation is completed, the UV light is gradually hardened at a certain distance. In this manner, the remaining N-1 bonding operations are performed to construct a housingless linker for the lens array plate 2.

In the ninth step, after the work in the eighth step is completed, the adhesive is cured at room temperature to firmly solidify. Then, the optical switch module assembled from the coaxial adapter 6 is detached and finally fastened to the pedestal 14.

Next, a description will be given of a manufacturing method in a state where the housing 5e, which is a second method for manufacturing the mechanical optical switch of the present invention, is already made.

In the method of the present invention, the linker 5 is made in place of the first step and the second step so that the linker is inserted into the N array holes 2a with precise alignment, and the adhesive material is placed in the array holes 2a. Insert and harden. The other sorting method is the same as the first method.

As described above, the mechanical optical switch according to the present invention is a mechanical optical switch using a motor, which can selectively measure a plurality of optical elements and an object to be measured by one optical measuring device, and furthermore, The fiber optic test can be performed by selecting N fiber cores. In addition, the device of the present invention can be widely used in optical-related tests, such as for monitoring the optical path and optical cable test, and also can be developed to other applications based on the optical switch technology.

Claims (6)

A coaxial rotating body (7) which can be operated automatically or manually at an angle equal to the dividing angle of the arrangement holes (2a) formed in the lens array plate (2); A coaxial adapter 6 mounted on an upper portion of the coaxial rotor 7 and having a predetermined size groove 6a formed at an inner center thereof, and having a V groove fixing device 6b spaced along a circumference; A coaxial support (3) seated on an upper portion of the coaxial adapter (6), and having a tapered coaxial taper fastening portion (3c) protruding toward a lower portion of a lower central portion, and having a cavity having a predetermined size therein; A motor (4) seated in the cavity of the coaxial support (3), the motor shaft (4a) of a predetermined length protrudes upward, and rotates within a predetermined angle range by a controller; A hole is formed in the inner center portion 2e, and is fixed by fixing means 19a and 19b on each upper surface of the coaxial support 3 and the motor 4, and a linker 5 near its end along the circumference thereof. Lens array plate (2) in which N array holes (2a) in the longitudinal direction for attaching the < RTI ID = 0.0 >) are formed, < / RTI > One side is fixed to the motor shafter 4a protruding upward through the hole 2e at the center of the lens array 2, and the other side is a longitudinal array hole formed on the lens array plate 2. A rotating arm 1 in which a lens hole 1a for mounting the linker 5 is formed at the same line in the longitudinal direction as 2a; An alignment key (10) for fastening the rotary arm (1) onto the lens array plate (2); And a linker (5) respectively attached to the lens hole (1a) of the rotating arm (1) and the N array holes (2a) formed on the lens array plate (2). According to claim 1, wherein the rotary arm (1) is a two-arm rotary arm that can form a 2: N-type optical switch by binding the linker to each of the positions 180 degrees around the motor shaft (4a) is characterized in that Mechanical optical switch. In the manufacturing method of the mechanical optical switch The lens array plate 2 is placed upside down on the U-shaped flat plate 8, and then an adhesive material is applied to the circumferential surfaces of the optical lenses 5c and 5f, and then the lens array plate 2 A first step of binding the optical lenses 5c and 5f to the N array holes 2a; A second step of heating and solidifying the binding portion, and then cooling the end surfaces of the optical lenses 5c and 5f after cooling for a predetermined time at room temperature; A third step of attaching the linker (5) to the lens hole (1a) of the rotating arm (1) in the same manner as in the first and second steps; A fourth step of fastening the coaxial adapter (6) on the coaxial rotary body (7) operated at an angle equal to the dividing angle of the arrangement holes (2a) of the lens array plate (2) by manual or automatic control; A fifth step of mounting the coaxial support (3) on the coaxial adapter (6) and then fixing it with a fastening device (6b); The motor 4 is inserted into the inner cavity of the coaxial support 3, the lens array plate 2 is placed on top of the motor 4 and the coaxial support 3, and then the coaxial key 9 is attached to the lens. After inserting into the hole 2e located in the center of the array plate 2, the components 4 are coaxial by fixing the motor 4, the lens array plate 2 and the coaxial support 3, respectively. A sixth step of removing the coaxial key (9); The seventh step of fastening the rotary arm (1) to the motor (4), using the rotary plate fixing device (1f) in a state in which the rotary arm (1) and the lens array plate (2) spaced a certain distance apart; ; An eighth coupling the capillary 5b into which the optical fiber 5a is inserted to the lower surface of any one of the N optical lenses 5c and 5f mounted on the lens array plate 2; Process; A ninth step of repeatedly performing the above processes on the remaining N-1 optical lenses 5c and 5f to couple the capacities 5b into which the optical fiber 5a is inserted; Method of manufacturing a mechanical optical switch comprising a tenth step of separating the optical switch module assembled from the coaxial adapter (6) and fastening on the pedestal (14). The method of claim 3, The coaxial adapter (6) is provided with a coaxial support fixing device (6b) along the circumference so that the coaxial support (3) mounted therein before and after fabrication of the optical switch module can be easily detached, the coaxial support in the inner center (3) A method for manufacturing a mechanical optical switch, characterized in that a space is provided for accommodating the tapered fastening portion (3c). The method of claim 4, wherein The coaxial support fixing device (6b) is a mechanical type characterized in that it is formed by a fixture formed with a V-shaped protrusion at the end inserted into the through hole formed at three points divided by 120 degrees along the circumference of the coaxial adapter (6) How to make optical switch. The method of claim 3, When the coaxial key 9 is inserted into the hole 2e located in the center of the lens array plate 2, the motor shaft 4a is inserted into the inner center of the coaxial key 9 so that the motor 4 The upper surface portion is pushed in until it touches, and the motor 4 and the lens array plate 2 are first fastened with the fastening screw 19a through the fastening holes 2c formed in the lens array plate 2, and then the lens Method of manufacturing a mechanical optical switch characterized in that the coaxial key (9) is removed in a state in which the arrangement plate (2) and the coaxial support (3) is fixed by the fastening screw (19b) secondary coaxially.

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