TW517043B - Optical fiber manufacture method, preform manufacture method, and preform manufacture apparatus - Google Patents

Abstract

A method for manufacturing an optical fiber comprises setting a heating condition for heating a glass rod, which is a parent material of the optical fiber, and an elongating speed of the glass rod based on a prescribed numerical value which changes with a progress of elongation of the glass rod; heating and elongating the glass rod to generate a preform based on the heating condition and the elongating speed which are set by the setting; and drawing the preform to a filament-like form by further heating the preform to generate the optical fiber.

Description

517043

File: 5546piil.doc A7 B7 V. Description of the Invention (I) The present invention relates to a method for manufacturing optical fiber, a method for manufacturing a preform, and a device for manufacturing a preform, which can be manufactured with a small diameter Changing preforms and fibers. ^ Figure 1 shows a schematic diagram of a conventional glass base material first elongating device 400. The glass base material 102 is a fiber-based material, and is usually extended by the glass base material first extension device 400. This forces the diameter of the glass base material 102 to produce a 'glass rod' 106. The glass rod 106 has a diameter from 3 mm to 5 mm, which is larger than most conventional diameters for pulling out optical fibers. Most conventional diameters used to pull out optical fibers are 30mm to 80mm. The glass base material first extension device 400 includes a heating furnace tube 100 for heating the glass base material 102, and a drawing chuck 104 for supporting and extending the heating glass base material 102. In order to extend the glass base material 102, the glass base material first extension device 400 supplies the glass base material 102 to the heating furnace tube 100. Here, the glass base material 102 is heated to about 2000 degrees Celsius. The first extension device 400 then supports the glass base material 102 by pulling out the clip 104, and continuously pulls down the glass base material 102 from the heating furnace tube 100 to form a glass rod 106. FIG. 2 is a structural diagram of a conventional glass lathe 110. The glass rod 106 manufactured by the glass base material first extension device 400 will be extended twice through the glass lathe 110 degrees to produce a prefabricated part 107. At the same time, the diameter of the glass rod 106 is reduced to a prescribed diameter. The glass lathe u〇 includes clips 118 and 119 to support the glass rod 106, a rear support table U6 to move the clip 119, and a heating source 122 to heat the glass rod 106. Card holder one of 118 4 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) " " " " " " " '¥ (Please read the note on the back? Please fill in this page again for matters) ------ ^^ 1 IIIIII. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546pii 1 .doc A7 B7 5. Description of the invention (;) The side is fixed and the other side of the card holder 118 is movable. A traction force can be used for the clip 119. The glass rod 106 supported by the clamps 118 and 119 will be heated by the heating source 122. The glass rod 106 can be extended by pulling the glass rod 106 by moving the tail supporter 丨 16. Therefore, the diameter of the glass rod 106 is reduced to a predetermined diameter. When the glass base material 102 is extended using the conventional glass base material first extension device 400, it is possible to manufacture a curved glass rod 106. In addition, when a conventional glass lathe 110 is used to extend the glass rod 106 to make the preform 107, additional problems usually occur. These problems include variations in the diameter of the preform 107, because each preform is produced At 1007 hours, the reasons for the difference in the amount of gas supplied to the heating source 122 and the speed of moving the tail support table U6. When the curved glass rod 106 manufactured by the traditional glass base material first extension device 400 is extended, and the prefabricated part 107 is manufactured through the glass lathe 110, the diameter of the preformed 107 will change. When an optical fiber is manufactured by pulling out a preform 107 having a varying diameter, the diameter of the produced optical fiber also changes. This makes it difficult to manufacture high-quality optical fibers. Therefore, an object of the present invention is to provide a method for manufacturing an optical fiber, a method for manufacturing a preform, and a device for manufacturing a preform, which can solve the foregoing problems. The object of the present invention can be achieved by combining the features interpolated in the separate AL item of the patent application scope of the present invention. This application-scope independent term defines additional advantages of embodiments of the invention. According to a first aspect of the present invention, a method for manufacturing an optical fiber is provided, which includes setting a heating condition to heat a glass rod, which is the mother of the optical fiber. The paper size is in accordance with China National Standard (CNS) A4 specification. x 297 mm) '' " i. 0 ϋ · ϋ. ^ 1 ϋ 1_1 Βν ^ 1 ^^ Β ^ · ^ ^ 1 ^ 1 ^ 1 ϋ · ^ 1-4 (Please read the precautions on the back first (Fill in this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043: ile: 5 546pii 1 -doc A7 B7 V. Description of the invention (彡) Body material, and according to the specified number that changes with the extension of glass rod , Set the extension speed of the glass rod; according to the heating conditions and extension speed set in this setting, heat and extend the glass rod to produce a preform; and draw the preform into a similar thin line shape by additional heating of the preform to produce One fiber. A method for manufacturing an optical fiber is provided. The setting situation is determined based on the duration of the extension process, and the heating condition and the extension speed are set. This heating process and extension process may include a tail end drawing process to reduce the diameter of one end of the glass rod, and the tail end drawing process is based on the duration of the tail end drawing process. The Sheshan that pulls out the glass rod provides a method for manufacturing optical fiber. The setting situation is based on the duration of the extension process. The position of the burner to heat the glass rod and the amount of gas supplied to the burner are set as the heating status . This setting can be set as the extension speed based on the duration of the extension process. A method for manufacturing an optical fiber is provided. The setting situation is based on the length of the glass rod during the extension process, and the heating condition and the extension speed are set. A method for manufacturing an optical fiber is provided. The heating process and the extension process include a tail end drawing process to reduce the diameter of one end of the glass rod, and the tail end drawing process is based on the length of the glass rod. Pull out the end of the glass rod. This setting can be based on the extended length of the glass rod, the moving distance of the burner used to heat the glass rod, and the supply of this paper. Applicable to China National Standard (CNS) A4 (210 X 297 mm) (please read the back first) (Please note this page before filling in this page) ------- ^ 丨 Order w -------- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546piil.doc A7 B7 A7 V. Description of the Invention (I) The amount of gas from r ^ W to the burner is used as the heating condition. This setting can be used to extend the length of the glass rod, and set the release of the clip used to support the glass rod as an extension speed. Φ Provides a method for manufacturing optical fibers. This setting uses the / reference device, which is provided. On the motor used to drive the clip, the moving distance of the clip is measured by measuring the wide rotation angle. # _ Provide a method for manufacturing optical fiber. This setting is based on the tension generated on the glass rod during the process of _ as the number and set the heating condition. _ Speed Provide a method for manufacturing optical fiber to heat the source of the glass rod. The extension process is carried out, moving along the longitudinal direction of the glass rod, and controlling the extension speed with the heat and extension process, so that the tension before the printing of the heating source movement regulation _______ Li Zhi, Bureau of Intellectual Property of the Ministry of Economic Affairs, and the consumer co-operative cooperative will generally become 110%. Or lower than the average of the tension after the heating source moves _. A method for manufacturing an optical fiber is provided. The heating and elongation process control force is such that the tension before the heating source moves a predetermined distance generally becomes an average tension from 80% to 110% after the heating source moves a predetermined distance. This prescribed distance is generally between 50 mm and 150 mm. When the heating source moves this specified distance, the heating and extension process can control the extension speed to a certain speed. This setting depends on the tension, and the speed of the clamp used to support the glass rod is set as the extension speed. Provide a method for manufacturing optical fiber. The setting situation is based on the position of the mark provided on the connection between the glass rod and any virtual rod as a number. It is affixed to either end of the glass rod to set the heating condition and The paper size of the extended speed paper is applicable to the Chinese National Standard (CNS) A4 (210 X 297 male f)

517043 rile: 5546pii 1 .doc A7 B7 5. Description of the invention (f) degree. (Please read the precautions on the back before filling out this page) Provide a method for manufacturing optical fiber. The heating process and extension process include a tail end drawing process to reduce the diameter of one end of the glass rod and the basis for the tail end drawing process. Mark the position and pull out the end of the glass rod with the end of the heating and extension process. This setting can be based on the position of the cut provided on the connection between the glass rod and any of the virtual rods as the mark position to set the heating condition and the extension speed. A method for manufacturing optical fiber is provided, and the setting situation is based on the position of the fluorescent paint provided on the connection between the glass rod and any virtual rod as a mark position, and the heating condition and the extension speed are set. A method for manufacturing an optical fiber is provided. The setting situation is based on the diameter in a plurality of positions along the axis of the glass rod as a number, the extension speed in the plurality of positions along the axis of the glass rod is set, and according to the glass. The average diameter of the diameters in the plural positions of the poles sets the heating condition. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs to provide a method for manufacturing optical fibers. The diameter of one end of a glass rod pulled out by the tail end is reduced, and this setting is based on a plurality of positions along the axis of the glass rod. The diameter of the glass rod, and the length change of the glass rod along the axis direction of the glass rod through the extension process are used as a number to detect the position of the region where the tail end of the glass rod pulled out by the tail end is drawn, and The position of the exit area is to set the honing range of the glass rod honing through the flame, and to set the heating power status of the flame according to the diameter of the pull-out area at the tail end, and honing the glass through the flame of the heating power status during the heating and extending process. Honing range of poles. According to another aspect of the present invention, a method for manufacturing optical fiber is proposed. The paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) 517043 F i 1 e: 5 5 4 6 pii 1. .d oc The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed A7 B7 5 1¾¾¾ ^^ long-face rod, long surface medulla to produce a preform; additional heating of the preform to pull the preform into a similar thin line shape ' Optical fiber; and 'this heating and extending process has preheating the glass rod until the specified area of the glass rod is softened, and the tail end is pulled out of the specified area to reduce the diameter of the specified area, and is used for additional heating and extension of the specified area to make One end of a glass rod. A method for manufacturing an optical fiber is provided. The tail-end drawing process further includes a second heating process for heating an area through a flame. Compared with a center of a prescribed area, most of the areas are directed toward the middle surface of a glass rod. The flame concentration is less than The flame concentration of the preheating process. According to a first aspect of the present invention, a method for manufacturing a preform, which is a matrix material of an optical fiber, includes setting a heating condition for heating a glass rod, which is a matrix material of an optical fiber, and according to the progress of the extension of the glass rod. Change the specified number: 'Set the extension speed of the glass rod, and the heating condition and extension speed set according to this setting situation, heat and extend the glass rod to produce a preform. A method for manufacturing a prefabricated part is provided. The setting situation is based on the duration of the extension process as a number, and the heating condition and the extension speed are set. A method for manufacturing a preform is provided. The heating process and the extension process include a tail end drawing process to reduce the diameter of one end of the glass rod, and the tail end drawing process is based on the duration of the tail end drawing process. Pull the end of the glass rod with the end 5 of the extension process. This setting is based on the length of the glass rod extension during the extension process, and sets the heating condition and extension speed. The heating process and extension process also include a tail-end pull-out process, which is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) for this paper size. \ -------------- ---- ^ — Order, -------- (Please read the notes on the back before filling this page) 517043

File: 5546pii 1 .doc A7 B7 V. Description of the invention (q) Reduce the diameter of one end of the glass rod, and the process of pulling out the tail end according to the length of the glass rod. (Please read the precautions on the back before filling this page) 丄 山 _〇 Provides a method for manufacturing prefabricated parts. This setting is based on the tension generated on the glass rod during the extension process as a number, and sets the heating status and extension speed. . Provided is a method for manufacturing a preform, which is used to heat a heating source of a glass rod, and move along the longitudinal direction of the glass rod as the elongation process proceeds, and control the elongation speed during the heating and elongation process, so that the tension before the heating source moves a predetermined distance Roughly 110% or less becomes the average tension of the tension after the heating source moves a predetermined distance. A method for manufacturing a preform is provided, in which the tension is controlled during heating and elongation, so that the tension before the heating source moves a predetermined distance generally becomes an average tension from 80% to 110% after the heating source moves a predetermined distance. This prescribed distance is generally between 50mm and 150mm. When the heating source moves a specified distance, the heating and extension process controls the extension speed to a certain speed. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs to provide a method for manufacturing prefabricated parts. This setting is based on the position of the marker provided on the connection between the glass rod and any virtual rod, which is connected. Go to either end of the glass rod and set the heating condition and extension speed. The heating process and extension process may include a tail-end drawing process to reduce the diameter of one end of the glass rod, and the tail-end drawing process according to the marked position, with the heating and extending process, the tail end of the glass rod is pulled out of the end of the glass rod. Provide a method for manufacturing prefabricated parts. The setting situation is based on the diameter of a plurality of positions along the axis of the glass rod as the number. The setting of this paper applies the Chinese National Standard (CNS) A4 specification (210 X 297). Mm) 517043

File: 5546pii 1 .doc A7 B7 V. Description of the invention (¾) The extension speed in the multiple positions of the glass rod in the axial direction, and the heating condition is set based on the average diameter of the diameters in the multiple positions of the glass rod. To provide a method for manufacturing a preform, the diameter of one end of a glass rod pulled out by a tail end is reduced, and the setting situation is based on the diameter in a plurality of positions along the axis of the glass rod, and along the extension process The length change of the glass rod in the direction of the axis of the glass rod is taken as a number. The position of the region of the tail end of the glass rod pulled out by the tail end is detected, and the position of the region of the end of the glass rod is set to pass through the flame. The honing range of the glass rod is set according to the diameter of the region pulled out at the end, and the heating power status of the flame is set, and the honing range of the glass rod is honed by the flame during the heating and extending process. According to another aspect of the present invention, a method for manufacturing a preform is provided, which is a mother material of an optical fiber, including preheating a glass rod until a specified area of the glass rod is softened, and pulling out the specified area at a tail end to reduce The diameter of the specified area is used to make one thousandth of the glass through additional heating and extension of the specified area. This process of pulling out the tail end further includes a second heating process for heating an area through the flame. Compared with the center of the prescribed area, most of it is directed toward the middle surface of the glass rod. The flame concentration is less than that of the flame during the preheating process. concentration. According to a first aspect of the present invention, a device for manufacturing a preform, which is a mother material of an optical fiber, includes a heating source for heating a glass rod, which is a mother material of the preform; an extension unit for extending glass A rod; a measuring device for measuring the number that changes with the extension of the glass rod; and a control unit for applying the Chinese national standard (CNS) based on the number of paper sizes measured by the measuring device ) A4 specification (210 X 297 public love) -IV. (Please read the note on the back? Matters before filling out this page) ------ Buddy, -------- line% Intellectual Property of the Ministry of Economic Affairs Printed by the Bureau's Consumer Cooperatives 517043

File: 5546piil.doc A7 Explanation of the invention (1) 値, control the heating condition of the heating source and the extension of the extension unit to provide pre-fabricated bets, face bribes_Printed by the Employees' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs and the Ministry of Economic Affairs The execution time is counted, and the control unit provides a kind of device for manufacturing prefabricated parts according to the measured delay. The extension of the extension unit is changed by the measurement device. Alas, Yan Eryuan's Crane II, which turns over based on the amount of classics _ measurement type = heating condition and extension speed. The process of disengagement and tethering creates a gambling problem, and it is difficult to measure the beach. _ Extending by measuring the movement of students _ 値, and controlling _ Yuan based on the tension generated on the Wei and Jing Yan poles, _ heating conditions / 一 、、 / 1 For a device for manufacturing prefabricated parts, the heating source moves longitudinally of the glass rod along with the extension process, and the control unit controls the extension speed, so that the tension of # before the heating source moves a predetermined distance generally becomes 110% or more Low average 値 of tension after the heating source has moved a predetermined distance. η mention 1 There is a device for manufacturing prefabricated parts. The control unit controls the tension, so that the tension at the distance of the moving distance of the source is generally changed from 80% to U0% after the heating source moves a predetermined distance. Average 値. This specified distance = is roughly between. When the heating source moves a predetermined distance, the control unit can control the extension speed to a certain speed. Provided is a device for manufacturing a prefabricated part. A measuring device measures a marked position provided on a connection between a glass rod and any virtual rod as a data frame, which is connected to either end of the glass rod, and controls The unit is based on a measuring device measuring 12 paper rulers «Hour_: Grid Copier / · (Please read the precautions on the back before filling this page)

517043

File: 5546pii 1 .dc Printed A7 B7 by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (丨 (?) Marking position measured by the measuring device to control the heating status and extend the speed. Device, measuring device measures the diameter in a plurality of positions along the axis of the 5-bar _ rod as a number, and controls the gastric element based on the diameter in a plurality of positions along the axis of the glass rod, and controls _ The elongation speed in a plurality of positions along the axis of the glass rod and @ · The heating condition is controlled based on the average diameter of the diameters in the plurality of positions. In order to make the above and other objects, features, and advantages of the present invention more Obviously easy to understand, the following describes in detail the preferred embodiment and the accompanying drawings, as follows: Brief description of the drawings: Figure 1 shows a schematic diagram of a first extension device 400 of a traditional glass base material; FIG. 2 does not show the architecture diagram of a conventional glass lathe 110; FIG. 3 shows the system diagram of the optical fiber manufacturing apparatus of the present invention; FIG. 4 shows the optical fiber manufacturing method of the present invention Flow chart; Figure 5 shows the architecture of the first extension device 900 of the basic glass material; Figure 6 shows the architecture of the first extension device 402, which passes through a basic material fixing unit Π6 Support a standard rod us to adjust the axis used to extend the glass base material 102; FIG. 7 shows a detailed flowchart of the first extension process (S204) of the glass base material in FIG. 4; FIG. 8 shows It is the architecture diagram of the first extension device 402, which supports the standard bar 138 via the extension clip I42; This paper size is applicable to the Chinese National Standard (CNS) A4 specification (21〇X 297 mm) {Please read the note on the back first Matters refill this page}

517043

File: 5546pii 1 .doc A7 B7 V. Description of the Invention (II) Figure 9 shows the architecture diagram of the first extension device 402, which supports the standard bar 138 via the suspension mechanism I34 and the extension mechanism 14; (please first (Please read the notes on the back and fill in this page) Figure 10 shows an example of using the extension roller 14 to replace the extension clip I42 on the extension mechanism M0; Figure 11 shows the use of the extension roller 144a The example of the extension clip I42 on the system 140 with 144b instead of the extension machine; Figure I2 can't draw a schematic diagram of the glass base material 102, and its curvature is measured; Table 13 can't draw through The first extension device 402 controls the rotation speed of the extension rollers M4a and 14; Figure 14 shows the deviation between the center position of the heat-softened area of the glass base material ι〇2 and the extension axis I54. The relationship between the curvature of the glass rod 106; Figure 15 shows the extension roller; the deformation of the surface of i44a and l44b; Figure 16 shows the number of times when the metal pipe system is changed from Figure 15 The displacement diagram of the metal tube when the extended rollers 144a and 144b are loaded by 300; Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Figure Π shows the dislocation map of the central position of the heat-softened area via the first extension device 402 in the embodiment. Figure 18 shows when the extension The change of the center position of the heat-softened area when the rotation speed of the rollers 44a and 144b are controlled at the same rotation speed; Figure 19 shows the burner (37) for the glass rod melting device 37 of Figure 5 ( burner) 176 another embodiment; FIG. 20 shows a structural diagram of a glass rod conveying device 380; this paper size applies the Chinese National Standard (CNS) A4 specification (210x297 mm 517043 F i 1 e: 5 5 4 6 pii 1. D occ A7 B7 The invention description (μ) printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (Figure 5) Figure 21 shows the schematic diagram of the storage container 224 of the first extension device 402; (Please read first Note on the back, please fill in this page again.) Figure 22 cannot depict the movement of the glass rod conveying device 380 when the glass rod 106 is conveyed. Figure 23 shows another implementation of the glass rod conveying device 380. Example; Figure 24 shows when the glass rod loses When the feeding device 380 conveys the glass rod 106, the movement diagram of the glass rod conveying device 380 in FIG. 23 is shown in FIG. 25; FIG. 25 shows the structural diagram of the second extension device 111 of the glass rod of the present invention; The detailed flow chart of the second extension process (S206) of the glass rod in FIG. 4; FIG. 27 shows the cooling device 330 provided on the fixed clip 118 and the movable clip 119 of the second extension device 111 of the glass rod Figure 28 shows the temperature map of the fixed clip 118 and the movable clip 11.9 of the example and the comparative example; Figure 29 shows the temperature between the heating source 122 and the diameter measuring device 124 The relationship between the distance and the percentage change in the diameter of the glass rod 106; Figure 30 shows the structure of the glass rod second extension device 111, which has a force measuring device 282; Figure 31 shows the 26th Fig. 32 is a detailed flowchart of the extension process (S154); Fig. 32 shows the process of diameter change during the extension of the glass rod 106; Fig. 33 shows the extension process according to Fig. 31 (S154) The paper size of glass is applicable to Chinese National Standard (CNS) A4 (21 0 X 297 mm) 517043

File: 5 546pii 1 .doc A7 B7 V. Description of the invention (丨}) The process drawing of the pole 10 6 being extended; (Please read the notes on the back before filling this page) Figure 34 shows the early stage of the example The tension change of the glass rod 106 during the extension phase; Figure 35 shows the tension change of the glass rod 106 during the early extension phase of the comparative example; Figure 36 does not show the extension of the glass rod 106 After that, the diameter of the glass rod 106 is changed; FIG. 37 shows a detailed flowchart of the drawing-out process (S158) at the end of FIG. 26; FIG. 38 shows a schematic view of the cutout 284, which is shown at The drawing position detection process (S169) at the end of Figure 37 is provided on the connection between the glass rod 106 and the virtual rod 108; Figure 39 shows a schematic diagram of the mark 287, which is used between The connection between the glass rod 106 and the virtual rod 108 is used as another example of the mark; FIG. 40 shows the second detection of the cutout 284 of the glass rod in the position detection process (S169) at the tail end. Schematic diagram of extension device 111; Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, Figure 41 and 7 ^ During the drawing process of the tail end of the glass rod 106 not shown in the flowchart in FIG. 37, the heating source 122 and the tail support platform 116 are moved. FIG. 42 shows the drawing process at the tail end of FIG. 37. In (S158), another example of the setting method of the tail-pulling process is shown in FIG. 43. FIG. 43 shows another process of the tail-pulling process in FIG. 37 (S158). ^ Another ^ setting example of the method; Figure 44 shows the structure diagram of the heating source 122 of the second extension device of the glass rod in; This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 517043

File: 5546pii 1 .doc A7 B7 V. Description of the Invention (γ) Figure 45 shows a plan view of the top of the heating source 122; _ (Please read the precautions on the back before filling this page) Figure 46 shows It is the relationship between the linear velocity of oxygen and the top temperature of the heating source 122. Figure 47 shows the shape of the tip of the preform 107, and its diameter is reduced and reduced during the tail end drawing process (S158). Melting; Figure ⑽ shows another shape of the tip of the preform 107, whose tail is extended; Figure 49 shows the preform 107 in the surface treatment process (S168) of Figure 26. The damage map of the preform 107 before surface treatment; Figure 50 shows a schematic diagram of the preform 107a, which is treated by the example shown in Figure 51 and Figure 52 through hydrofluoric acid etching; Figure 51 The number of the hydrogen fluoride concaves on the preform 107 of the example and the comparative example is counted by visual inspection. Figure 52 shows the preform after the hydrofluoric acid etching process of the example and the comparative example. 107 uneven surface; Figure 53 shows the surface prefabricated The other shape of 107; Figure 54 shows the unintentional use of ultrasonic washing device 4 for washing the heating source; and Figure 55 shows the printing by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. A structural diagram of a preform pull-out device 500 for extending the preform 107 to manufacture an optical fiber. Description of the symbols of the drawings: 100: heating furnace tube 102: glass base material 104: pull-out clip 106: glass rods 107, 107a, 107b: preform 108, 342: virtual rod This paper size applies Chinese national standards (CNS) A4 size (210 X 297 mm) 517043

File: 5 546pii 1 .doc A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (β) 110: Glass Lathe Glass Rod Second Extension Device 112: Pallet 116: Tail Support 118, 119, 346 : Clip moving bracket 122: Heating source diameter measuring device 130: Extension furnace suspension mechanism 136: Basic material fixed unit standard rod 140: Extension mechanism extension clip 144a, 144b: Extension roller 149: Bearing 150: Measurement Device diameter measuring device 154: extended axis diameter control unit 158: position control unit burner 178: flame hydrogen supply pipe 192: oxygen supply pipe annular gas inlet 196: cooling water cooling water supply pipe 200: cooling water discharge pipe feeder 206: Extension device support leg 210: Rotary table motor 214: Timing conveyor belt burner holder 218: Extended melting cartridge storage container, 234b, 236a, 236b: Support element cylinder storage box 245: Removable support element fixed support Element 248: Operation switch box 264: Actuator 252: Support frame 18 (Please read the precautions on the back before filling this page) Scale applicable Chinese National Standard (CNS) A4 size (210 X 297 mm) 517043

File: 5 546pii 1 .doc A7 B7 V. Description of the invention (/ f) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 254: Manipulator 256, 268: Rotary shaft 257, 258: Shaft nail 260: Tray 262: Pillar 266 : Coupling shaft 270: Sliding pusher 272: Moving bracket encoder 273: End support bracket drive encoder 274: Moving bracket motor 275: End bracket driving motor 276: Chain 278: Flow controller 280: Control unit 282: Tension measurement device 284: Cutout 285: Outer tube 286: Inner tube 287: Fluorescent paint 288: Oxygen outlet 290: Flammable gas outlet 294: Flame 296: Inert gas passage 298: Inert gas flow rate control unit 300: Valve 302: Connection element 304: control element 306: drive source 308: oxygen channel 310: oxygen flow rate control unit 312: flammable gas channel 314: flammable gas flow rate control unit 316: branch tool 330: cooling device 332: melting section 334: Cutting surface 336: Tapered portion 338: Thin portion 340: Handle 346: Clip 344: Movable support 348: Heating device 350: Optical fiber 352: Diameter measuring device 354: First coating device 3 56: First corrective device (please read the precautions on the back before filling this page) This paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) 517043 < ηε: 5 546ρϋ 1 .doc Description of the invention (M) 358: second coating device 362: traction machine 3S0: glass rod transmission device 392: hydrogen inlet pipe A7 B7 396 400 402 500 600 ultrasonic oscillator 36: second correction device 370: glass Rod melting device 390: Flame nozzle 394: Oxygen inlet pipe 398: Washing liquid Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs Employee Consumer Cooperatives 900 Printed glass first extension device First extension device 404: Ultrasonic washing device prefab Glass base material generating device 700: Glass base material dewatering and sintering device Detailed description of the present invention The present invention will be explained using embodiments. However, the following examples do not limit the scope of the present invention as described in the patent application scope. In addition, all the features described in the embodiments or a combination thereof are not necessary for the present invention. Although the present invention has been disclosed in the preferred embodiments, the scope of the present invention is not limited to these embodiments. Anyone skilled in the art can make various modifications and improvements to the embodiments of the present invention. Such amendments or improvements to the patentable scope of the present invention are also within the protection scope of the present invention. FIG. 3 is a system diagram of the optical fiber manufacturing apparatus of the present invention. The system of the optical fiber manufacturing device of the present invention includes a glass base material generating device 600 for generating a glass base material 102 as a base material for an optical fiber; a glass base material dehydrating and sintering device 700 for Dehydrated and sintered glass base material 102; —Glass base material first extension 20 (please read the note on the back? Matters before filling out this page) -------- tT --------- line Qin Ben paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 517043

File: 5 546pii 1 .dc Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention ((¾) 900 ′ is used to extend the glass base material 102 to produce a glass rod 106; a A glass rod transmission device 380 for transmitting the glass rod 106; a glass rod second extension device 111 for extending the glass rod 106 a second time to produce a preform 107; and a preform pull-out device 500, It is used to pull out the preform 107 to generate an optical fiber. Figure 4 shows a flowchart of the optical fiber manufacturing method of the present invention. The glass-based material generating device 600 uses a VAD method, a vapor axis deposition method, or the like ( S200) to produce a glass base material 102. The glass base material ι〇2 will then be dehydrated in a chlorine gas environment through a glass base material dehydration and sintering device 700 (S200), and in an inert gas environment. The diameter of the glass base material 102 is usually 10 to 200 mm. Compared with the diameter of 30 mm to 80 mm, it is more practical for pulling out optical fibers. Therefore, the dehydrated and sintered glass base material 102 is first passed through Glass foundation The material is extended by the first extension device 900 to produce a glass rod 106 (S204). The glass rod 106 has a diameter of 3mm to 5mm, which is convenient for pulling out the optical fiber from 30mm to 80mm. The glass rod 106 passes through Glass rod transmission device 38 (S205) transmission. The glass rod 106 receiver will be heated and extended to a specified diameter through the glass rod second extension device 1 丨 丨 to produce a prefabricated part 107 (S206) The preform 107 is heated and extended to a similar thin wire form through the preform pull-out device 500 to produce an optical fiber (S210). Figure 5 shows the first extension device 900 made of glass base material. The first extension device 900 of the glass base material includes a first extension device 402 for heating and extending the glass base material 102, and a glass rod melting device. The paper size applies the Chinese National Standard (CNS) A4 specification ( 21〇X 297 Public Love) (Please read the phonetic on the back? Matters before filling out this page)

517043

File: 5 546pii 1 .doc A7 B7 V. Description of the Invention (θ) (Please read the notes on the back before filling this page) 37〇 Used to melt the glass rod 106. The first extension device 402 has an extension furnace 130 having a heating furnace 100, and a suspension mechanism 134 is provided above the extension furnace 130. The suspension mechanism 134 is used to supply the glass base material OM2 to the interior of the extension furnace 130 at a predetermined speed. The first extension device 402 further has an extension mechanism 14 provided below the extension furnace 130 to support the glass rod 106 of the reduced diameter, and the glass rod 106 is pulled out at a prescribed speed. The suspension mechanism 134 has a base material fixing unit 136 for supporting the glass base material 102. The extension mechanism 140 has an extension clip 142 for supporting the glass rod 106. The glass rod melting device 370 has a burner 1-6, a rotating table 210, a certain time conveyor belt 214, a motor 212, a support leg 208, a burner holder 216, an extension device 206, and an extension melting Clip 218. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the glass base material 102 is mounted on the base material fixing unit 136, and is fed into the heating furnace 100 at a predetermined speed. The glass base material 10 is heated by the heating furnace 100, and then supported and pulled out through the extension clip 142 to reduce the diameter to produce a glass rod 106. The glass rod 106 is pulled out at a speed through the extension device 206 to obtain a suitable diameter, so that the glass base material 102 is extended to a desired diameter. At the same time, the diameter of the glass rod 106 is measured via a diameter measuring device 52. In order to extend the glass rod 106 to the desired diameter, the feeder 204, the heating furnace 100, and the extension device 206 are controlled based on the measurement results. After the glass rod 106 is extended to a predetermined diameter and length, a part of the glass rod 106 is melted by the burner 176, and it does not include bubbles or bubbles having a diameter of about 0.3 mm or more. Combustion of oxygen and hydrogen is a reasonable burner. This paper size is applicable to Zhongguanjia Standard (CNS) A4 specification (21G X 297 mm) ~ '517043

File: 5 546pii 1 .doc A7 B7 5. Description of the invention (2 (?) 176 heating device. Gas combustion based on hydrocarbon fuels such as propane and oxygen can also be used in the burner 176. The burner Π6 passes The support feet 208 are mounted on the rotary table 210. The rotary table 210 is rotated by a driving device such as a motor 212 and is rotated via a timing belt 214. The rotary table 210 is mounted on the burner rack 216. The glass rod melting device 370 is rotated The burner 176 heats the glass rod 106 to melt the glass rod 106, and extends the glass rod 106 using an extended melting clip 218 having a prescribed speed and pull-out strength. FIG. 6 shows a first extension device 402 A structural diagram of the structure, which supports a standard rod 138 through a base material fixing unit 136 to adjust the axis for extending the glass base material 102. The suspension mechanism 134 has a mechanism not shown in the figure for adjusting the base material fixing The vertical inclination of unit 136. The extension mechanism H0 has a mechanism, which is not shown in the figure, and is used to adjust the vertical inclination of the extension clip I42. The extension mechanism M0 has a mechanism, which is also not shown in the figure. To adjust the position of the extension mechanism 140 within the horizontal phase angles of the rear and front and the left and right. Fig. 7 shows the details of the first extension process (S204) of the glass base material in Fig. 4 Flow chart. The first extension process of glass base material (S204) has a process for adjusting the extension axis of the first extension device 402. First, a metal or ceramic rod is formulated as a standard rod 138. A linear standard rod 138 needs to be guaranteed. The standard rod 138 usually has the length of a glass base material 102, and the virtual rod is attached to the glass base material 102. The linear state axis of the standard rod 138 is guaranteed to follow the full length. As shown in Figure 6, the basic material fixed unit via the suspension mechanism 134 The paper size applies the Chinese National Standard (CNS) A4 specification (210 x 2 mm) < Please read the precautions on the back before filling this page) * 0 — ^ 1 ϋ · ϋ 1 a Μ— ^ 1 n —ϋ ^ 1 · ϋ I *, ^ Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5 5 46piil.doc pj B7 V. Description of the invention) 136 Support standard bar 138 (S110) ° Next, adjust the inclination A of the suspension mechanism I34 so that the direction of the standard bar 138 matches the vertical direction (S112). Subsequently, after the adjustment process is completed, the standard rod Π8 is removed from the base material fixing unit U6 (S114). FIG. 8 shows a structural diagram of the first extension device 402, which supports the standard rod 138 via the extension clip 142. An extension clip 142 via an extension mechanism 140 supports a standard bar 138 (Fig. 7'S116). Next, adjust the inclination B of the extension mechanism 140 so that the direction of the standard rod 138 conforms to the vertical direction (FIG. 7, S118). At the same time, the extension clip 142 is maintained at the approximate center in the longitudinal direction of the par 138. The steps of adjusting the suspension mechanism 134 and the extension mechanism 140 can be reversed. The extension mechanism 140 may be adjusted first, and then the suspension mechanism 134 may be adjusted. FIG. 9 shows the architecture diagram of the first extension device 402, which supports the standard bar 138 via both the suspension mechanism 134 and the extension mechanism H0. After the adjustment steps of the suspension mechanism 134 and the extension mechanism 140 are completed, the standard rod 138 is supported by the basic material fixing unit 136, and the bottom end of the standard rod 138 is supported by the extension clip 142 (Fig. 7, S120). Next, adjust the horizontal position C of the extension mechanism 140 or the horizontal position C of the suspension mechanism 134 so that the horizontal direction difference between the vertical axis and the standard rod 138 is less than 0.5 mm per lm length (Figure 7, S122) . Subsequently, the glass base material 102 is extended by using the first extension device 402 to generate the glass rod 106, and the extension axis thereof is adjusted (Figure 7, S124). Finally, the glass rod 106 is melted through the glass rod melting device 370 (Figure 7, S126). Figures 10 and 11 show the use of extension rollers 144a and 144b. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -------------- ---- · Order, -------- (Please read the notes on the back before filling out this page) 517043 pile: 5 546pii 1 .doc Magic B7 V. Description of the invention (2) In the extension mechanism 140 Here is an example of the extension clip 142. If the extension rollers 144a and 144b are used to adjust the vertical inclination of the axis connecting the suspension mechanism 34 and the extension mechanism 140, the following method can be used. The standard rod 138 is supported via the extension rollers 144a and 144b relative to the standard rod 138 via the extension clip 142 (FIG. 7, S116). Subsequently, the inclination of the extension mechanism is adjusted by adjusting the horizontal inclination of the straight line F. The straight line F connects the two rotation axes between the extension rollers 144a and 14 °. After the inclination adjustment step of the extension mechanism 140 (Fig. 7'S118) ', the extension rollers 144a and 144b can vertically support the standard rod 138. Then, as shown in FIG. 11, in this step, the standard rod 138 supported by the base material fixing unit 136 of the suspension mechanism 134 and the extension rollers 144a and 144b of the extension mechanism 140 corresponds to the base material fixing unit 136 and extension A standard rod 138 supported by the clip 142 (FIG. 7, S120). Next, the vertical inclination E of the axis connecting the suspension mechanism 134 and the extension mechanism 140 is adjusted. This adjustment step can be completed by adjusting the position of the extension mechanism 140 in the horizontal direction or adjusting the position of the suspension mechanism 134 in the horizontal direction. This step corresponds to the step of adjusting the horizontal position of the suspension mechanism 134 and the extension mechanism 140 (No. 7 (S122). Using the above adjustment method, the vertical inclination of the axis connecting the suspension mechanism 134 and the extension mechanism 140 can be easily adjusted. This method is not only suitable for extending the glass base material 102 with a straight line without any gap between the virtual rod and the glass base material 102, but also suitable for extending the curved glass base material 102 to obtain a desired linear state range. Inside the reduced diameter glass rod 106. The glass base material 102 is attached to the virtual rod, and the basic paper size of the glass applies the Chinese National Standard (CNS) A4 (210 X 297 mm) -L. (Please read the precautions on the back before filling this page ) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546piil.doc Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (4) It is possible that there is no gap between the base material 102 and the axis of the virtual rod. For the method of supporting the glass base material 102 through the suspension mechanism 134, the extension mechanism 140, or both, the 'first extension device 402 can accurately adjust the extension axis Vertical tilt. Therefore, the bending moment which causes the bending in the heat-softened area of the glass base material 102 can be reduced. The bending caused by the extended width of the glass base material 102 is related to the extension mechanism 140. The glass base material 102 can thus be extended within a desired linear state range without creating a gap between the glass base material 102 and the axis of the virtual rod. Fig. 12 shows a schematic diagram of the glass base material 102, and its bending degree is measured. The glass base material 102 is extended through the extension device 402, and its vertical tilt is adjusted through the adjustment method described above. Next, the curvature of the glass rod 106 was measured. First, the glass rod 106 is placed on the two bearings H8 and 149 mounted horizontally, so that the straight connection can be the top of the bearings 148 and 149 of a standard line. Next, the maximum or minimum height of the height is measured from the standard line using a device such as a scale measuring device along the glass rod 106 via the scanning measuring device 150. Then, the glass rod 106 is rotated 180 degrees, and the maximum and minimum of the local degree are measured from the standard line in the same way. The maximum value between the difference between the maximum value of the first measurement and the minimum value of the next measurement or the difference between the minimum value of the first measurement and the maximum value of the next measurement is set to "2h". This frame is divided into "h" by the length L1, which is the distance between the two bearings 148 and 149, and represents the linear state of the glass rod 106 per unit length. The five-segment straight glass base material 102 with a virtual rod is seamlessly extended by the first extension device 402 on an adjusted extension axis to produce five sections. This paper is sized to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ------------------- Ordering ----------- line, (Please read the precautions on the back before filling this page) 517043

File: 5 546pii 1 .doc B7 V. Description of the invention (4) (Please read the note on the back? Matters before filling out this page) Glass rod 106. The linear state of each glass rod 106 is measured by the method shown in Figure I2. The "h" of the glass rod 106 are all within 0.5 mm. Then, the glass rod 106 is extended by the first extension device 402 without adjusting the extension axis. On average, 90% of the glass rods 106 are curved, meaning that the glass rod 106 needs to be corrected by adjusting the extension axis. Brother 13 cannot draw a mechanism diagram for controlling the rotation speed of the extension check wheels M4a and 144b via the first extension device 402. The first extension device 402 controls the rotation speed of each extension roller 144a and 144b, respectively. The glass base material 102 is suspended by the base material fixing unit 136 of the base material of the extension device 402, and is sent to a heating furnace (not shown in the figure) at a predetermined speed. The glass rod 106 is heated and softened by the heating furnace, and is grasped by a pair of extension rollers 144a and 144b. By measuring the diameter of the heat-softened area of the glass base material 102 using the diameter measuring device 152, the center position of the heat-softened area of the glass base material 102 can be obtained. At the same time, the center position of this measured diameter can be calculated. A laser beam transmission type diameter measuring device is used as the diameter measuring device 1S2. This laser beam passes through a window provided on the lower part of the heater in the heating furnace, and is irradiated on the heat-softened area of the glass base material 102. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs This measured diameter is input into the diameter control unit 156 to calculate the difference between the target diameter 値 and the measured diameter 値. The rotation speed of the extension roller 144a is controlled based on the calculated difference in diameter. Then, the information at the center position of the heat-softened area is input to the position control unit 158. The position control unit 158 calculates the number of deviations between the center position of the heat-softened area and the extension axis 154 of the first extension device 402. Position control unit 27 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) '' 517043 A7

File: 5 546piil.doc _B7_____ 5. Description of the invention ($) (Please read the note on the back? Matters before filling out this page) I58 also calculates the correction of the rotation speed 其, which can reduce the center position and Extend the number of deviations between the axes 154 to the actual zero point. Next, the position control unit 158 controls the rotation speed of the extension roller 144b based on the increased correction value 値 and the rotation speed of the extension roller 144a. Figure I4 shows the relationship between the number of deviations between the center position of the thermally softened area of the glass base material 102 and the extension axis 154 and the curvature caused by the glass rod 106. Between the glass base material 10 The number of deviations between the center position of the thermally softened region 2 and the extended axis 154 is large, and the result bent in the glass rod 106 is large. When the number of deviations is large, the thermoelectric resistance elements on the surfaces of the extension rollers 144a and 144b are deformed. The shape of the extension roller 14 and M4b may be slightly different from each other. As a result, the rotation speeds of the surfaces of the extension rollers 144a and 144b are different from each other. If the deformation of the surfaces of the extension rollers 144a and M4b is one of the causes of the bending of the glass rod 106, the bending of the glass rod 106 can be reduced by controlling the rotation speed of each extension roller 144a and 144b separately. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The surfaces of the extension rollers 144a and 144b are formed of a thermal resistance material such as non-asbestos or asbestos. These materials are thermally resistant and flexible, so that the extension rollers 144a and 144b can easily extend the glass rod 106 at high temperatures. The surfaces of the extension rollers 144a and 144b that contact the glass rod 106 are gradually deformed by the high temperature and pressing force or the friction force of the glass rod 106. Since the deformation of the extension rollers 144a and 14b gradually becomes different from each other, the rotation speeds of the surfaces of the extension rollers H4a and 14d will also be different. Table 5 shows the deformation of the surfaces of the extension rollers 144a and 144b. Extension roller; the outer shape of U4a and the outer shape of extension roller 144b are 28. This paper size applies to China National Standard Flat (CNS) A4 specification (210 X 297 mm) " '" " " "' 517043

File.5546piil.doc A7 B7 5. Description of the Invention (2t) The number of different batches is the number of glass base materials 102, all of which have been extended. If the number of batches is increased ', deformation and wear will increase. As a result, the number of extensions between the extension rollers l44a and l44b will be different, causing the position of the heat-softened area of the glass base material 102 to change, and sequentially causing the glass rod 106 to bend. Fig. 16 shows the displacement of the center position of the heating area of the metal pipe when the metal pipe system is loaded by 300 extension rollers 144a and 14 in the batch shown in Fig. 15. The vertical axis represents the displacement of the center position of the heated area of the metal tube, and the horizontal axis represents time. A curve A represents a change in the number of deviations in the rotation directions of the extension rollers 144a and 144b. Curve A shows that during a single rotation of the extension rollers 144a and 144b, the displacement thereof varies greatly. Curve B shows that the displacement of the extension rollers 144a and 144b is very small. FIG. 17 shows a displacement map of the center position of the heat-softened area via the first extension device 402 in the embodiment. The vertical axis represents the displacement of the center position of the heat-softened area of the glass base material 102, and the horizontal axis represents the time from the start. After 1500 seconds of the initial extension, the displacement of the heat-softened area is controlled and maintained at a small level. Therefore, by controlling the rotation speed of each of the extension rollers 144a and 144b separately, a glass rod 106 without solid bending can be manufactured. This allows the center position of the heat-softened area to be maintained at a relatively fixed point. (Comparative example) Fig. 18 is a graph showing the change in the center position of the heat-softened area when the rotation speeds of the extension rollers 144a and 144b are controlled at the same rotation speed. The vertical axis represents the variation of the center position of the heat-softened area of the glass base material 102. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the note on the back first? Matters before filling out this page) -------- Order -------- Line-Printed by Employee Consumer Cooperative of Intellectual Property Bureau, Ministry of Economy 517043

File: 5 546pii 1 .doc A7 B7 V. Description of the invention (4) Bit, and the horizontal axis represents the time from the beginning of the extension. (Please read the precautions on the back before filling in this page) By measuring the diameter of the heat-softened area of the glass base material 102 using the same diameter measuring device 152 shown in Figure 17, a glass rod with a specified diameter can be manufactured 1〇6. The rotation speeds of the extension roller and the servo are controlled at the same rotation speed with each other. The change in the center position of the heat-softened area is so large that the bending caused by the extended glass rod 106 needs to be corrected. Fig. 19 shows another embodiment of the burner 176 used in the glass rod melting device 370 of Fig. 5. The annular burner 176 has a hydrogen supply pipe 190 and an annular gas inlet 194, both of which are connected to an oxygen supply pipe 192. The cooling water 196 is connected to the cooling water supply pipe 198 and the cooling water discharge pipe 200, and it is provided on the outer area of the annular burner 176. The annular gas inlet 194 may be a single layer for ejecting a mixture of hydrogen and oxygen. The annular gas inlet 194 may also be multi-layered or triple-layered, which ejects hydrogen from the upper and lower layers and oxygen from the middle layer. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. After hydrogen and oxygen are supplied to the ring burner 176 and burned, the glass rod 106 is placed inside the ring of the ring burner 176. The surface of the glass rod 106 is melted by the flame 178. The annular burner 176 can effectively heat the glass rod 106, so that the glass rod 106 does not need to be heated excessively. Therefore, when the glass is heated to a temperature above 2000 ° C ', the opaque areas on the glass surface cannot be seen on the melting surface of the glass rod 106. According to the above embodiment, 'glass rod' 06 will be melted. A glass base material 102 having a diameter of 120 mm is heated by a ring burner 176 for ten minutes. Hydrogen is supplied to the annular burner 176 at a rate of 300 liters / minute and oxygen at a rate of 20 liters / minute. When the glass rod 106 is melted, the paper size applies the Chinese National Standard (CNS) A4 (210 x 297 mm) 517043

File: 5546pii 1 .doc A _ A7 B7 V. Description of the Invention (2δ) The glass rod 106 will melt by extension. The melting surface of the glass rod 106 will change to the shape of a round rudder. The color of the surface of the glass rod 106 is transparent. FIG. 20 shows a structural diagram of the glass rod conveying device 380. The glass rod conveying device 380 is used for conveying the glass rod 106 produced through the first extension device 402. The glass rod 106 is supported by a movable support member 2M and a fixed support member 246 mounted on the cylinder storage box 244. When a cylinder (not shown) in the cylinder storage box 244 is driven, the movable support element 245 moves in the direction of the fixed support element 246 to support the glass rod 106. The force with which the movable support element 245 pushes the fixed support element 246 can be modified by modifying the air pressure flowing into the cylinder. During the transmission of the glass rod 106, the cylinder pressure can be modified by operating a switch. This switch is provided on the operation switch box 248. This embodiment has a second thrust level for pushing the movable support element 245 to the fixed support element 246. This can be achieved by adjusting one of the two possible levels of air pressure into the cylinder. For example, the weak side of the thrust pushing the movable supporting element 245 to the fixed supporting element 246 is the first supporting force, and the strong side of the thrust is the second supporting force. The first support force was set at 0.5 kg, and the second support force was set at 80 kg. There are only two adjustment levels for cylinder air pressure adjustment. The pressure adjustment can be a multi-level adjustment type to adjust the air pressure more than three levels, or a continuous adjustment type to provide a stepwise level change. The rotating actuator 25 rotates the movable support member 245 and the fixed support member 246 through the cylinder storage box 244 to rotate the glass rod 106 from a vertical state to a horizontal state. Supporting flame (holding flame) 252 is connected to the glass rod conveying device 380 and this paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page)- ----- ^ 丨 tr --------- line ^ j ^ · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043: ile: 5546pii 1 .doc A7 B7 V. Description of the Invention (Clever) 1 The extension device 402 supports the glass rod conveying device 380. Manipulator (haruik) 254 (Please read the note on the back? Matters before filling out this page) It is used to operate the glass rod conveying device 380. The rotation shaft 256 is used to rotate the cylinder storage box 244. Fig. 21 is a schematic view of a storage container 224 of the first extension device 402. The storage container 224 has a tray 260, a pillar 262, a pair of support members 234a and 234b to support the glass rod 106, and a pair of support members 236a and 236b are provided under the support members 234a and 234b. The support elements 234a, 234b, 236a, and 236b are generally semi-circular, and they surely support the glass rod 106 within the storage container 224. Each other, each pair of support elements 234a and 234b and support elements 236a and 236b form a circular support element. One end of each of the supporting members 234a and 234b and the supporting members 236a and 236b is pivotally connected to the pillar 262. The other end is connected to a corresponding pair of supporting elements via a shaft pin 257 or a shaft pin 258. The support elements 234a and 234b are connected via a shaft pin 257, and the support elements 236a and 236b are connected via a shaft pin 258. The height of the pillar 262 is 1550 mm. The inner diameter of the tray 260 is 300 mm. The inner diameter of each support element is 180 mm, which is formed via the support element pairs 234a and 234b and the support element pairs 236a and 236b. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. If it is received in the storage container 224, the glass rod 106 has an external diameter of 80 mm, and the angle between the inclination α between the pillar 262 and the glass rod 106 can be in the range of front and back From -3.1 degrees to +8.1 degrees. The angle of inclination / 3 between the glass rod 106 and the pillar 262 can range from -5.9 degrees to +5.9 degrees in the left and right directions. Here, the angle of inclination is a finite angle within which the glass rod 106 can be received in the storage container 224 at various angles. The glass rod 106 is located within the storage container 224 at various angles. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 517043 A7

File: 5546pii 1 .doc ___B7 ____ V. Description of the invention (50) (Please read the notes on the back before filling this page) Figure 22 shows τρ; when the glass rod 106 is conveyed, the glass rod conveying device 380 moves Illustration. The glass rod 106 in the storage container 224 is supported by a movable supporting member 245 having a first supporting force and a fixed supporting member 246 (b). Then, the glass rod 106 is moved so that the glass rod 106 stands vertically to the ground inside the supporting members 234a and 234b (c). Because the first supporting force is very weak, during the movement of the glass rod 106, when the force is greater than the first supporting force supplied to the movable supporting element 245, the movable supporting element 245 will be opened. Moreover, the friction force between the movable support element 245 and the glass rod 106 will act, and the friction force between the fixed support element 246 and the glass rod 106 is small relative to the weight of the glass rod 106 . Therefore, the glass rod 106 is supported by the first supporting force so that the glass rod 106 cannot be lifted by the glass rod conveying device 380. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs After determining that the glass rod 106 stands vertically, the supporting force of the glass rod conveying device 380 will be changed to the second supporting force (d). Then, the pins 257 and 258 are removed, and each of the supporting members 234a and 234b and the supporting members 236a and 230b are opened. Next, the glass rod conveying device 38 will grasp the glass rod 106 and transfer it out of the storage container 224. The glass rod 106 removed from the storage container 224 is rotated to a horizontal position and placed on a storage place. During the horizontal placement of the glass rod 106 on the storage place, air pressure greater than a certain pressure will be supplied to the cylinder to lift and lower the glass rod conveying device 380. Therefore, the weight of the glass rod conveying device 380 will not be supplied to the glass Rod 106 to prevent damage to the glass rod 106. Fig. 23 shows another embodiment of the glass rod conveying device 380. The glass rod conveying device 380 of this embodiment has two rotation mechanisms A and B. Every 33 sheets of standard paper towels 0 standard (CNS) A4 size (21 × X 297 mm) A7 517043

File: 5546pii 1 .doc ___B7 _ 5. Description of the invention (now I) A rotation mechanism A and B have a rotation actuator. The rotation mechanism A rotates the glass rod 106 by rotating a rotation shaft 256 through a rotation actuator 250. The rotation mechanism B rotates a rotation shaft 268 through the rotation actuator 264, and moves the glass rod 106 up and down or left and right through the connecting shaft 266. The rotation axis 268 lies horizontally or vertically at right angles to the rotation axis 256. FIG. 24 shows the movement of the glass rod conveying device 380 of FIG. 23 when the glass rod conveying device 380 conveys the glass rod 106. Figure 24 (a) is a plan view showing the glass rod conveying device 380, which supports the glass rod: [〇6. Figure 24 (b) is a cross-sectional view showing a glass rod conveying device 380, which conveys the glass rod 106 to the V block 240. As shown in FIG. 24 (a), the movable supporting members 245 and 246 support the glass rod 106 vertically, and the glass rod 106 can be rotated from the vertical position to the horizontal position by operating the rotation actuator 250. Next, as shown in Section 24 (b), the movable support member 245 and the fixed support member 246 are rotated downward by activating the rotary actuator 264. By activating the rotary actuator 264, the opening and closing directions of the movable supporting member 245 are changed from a vertical direction to a horizontal direction. Therefore, after the movable supporting element 245 is opened and the glass rod 106 is placed on the V block 240, the movable supporting element 245 and the fixed supporting element 246 can be released upward. By including not only the rotating mechanism A to rotate the glass rod 106 from a vertical to a horizontal position, but also the rotating mechanism B having another rotation axis 268 lying at right angles to the rotation axis 256, thereby increasing the transmission efficiency of the glass rod 106. Fig. 25 is a block diagram showing the second extension device ill of the glass rod of the present invention. The second extension device 111 of the glass rod includes a bracket 112, a fixed clip 118, a movable clip 119, a heating source 122, a flow controller 278, and the paper size is applicable to China National Standard (CNS) A4 specifications ( 210 X 297 mm) ------------------- Order --------- (Please read the notes on the back before filling this page) Ministry of Economy Printed by the Intellectual Property Bureau Employee Consumer Cooperative 517043

File: 5546pi il.doc A7 B7 V. Explanation of the invention (meaning) Tail end support frames 114 and 116, a tail end support frame drive motor 275, a tail end support frame drive encoder 273, and a ^ diameter tomb measuring device 124 A moving bracket 120, a sliding pusher 270, a moving bracket motor 274, a moving bracket encoder 272, a chain 276, and a control unit 280. The fixed clip 118 and the movable clip 119 support the glass rod 106, and a virtual rod 108 is connected to the two ends of the glass rod 106, respectively. The heating source 122 heats the glass rod 106 supported by the fixed clip 118 and the movable clip Π9. The flow controller 278 adjusts the amount of gas supplied to the heating source 122. By moving the movable clip 119, the tail end support 116 extends the glass rod 106. The tail end support frame driving motor 275 drives the tail end support frame 116. The tail end support frame drive encoder 273 detects the number of rotations and controls the speed of the tail end support frame drive motor 275. The moving distance of the tail end support frame 116 can be estimated from the number of rotations of the tail end support frame drive motor 275 detected by the tail end support frame drive encoder 273. The diameter measuring device 124 measures the diameter of the glass rod 106 corresponding to a position along the axis direction of the glass rod 106. The heating source 122 and the diameter measuring device 124 are provided on the moving bracket 120. The moving support 120 moves the heating source UI2 and the diameter measuring device U4. A mobile stand 120 is provided on the pallet 112. The moving bracket 120 is movable along the sliding pusher 270, and is mounted parallel to the axis connecting the fixed clip 118 and the movable clip 119. The moving stand 120 is driven by the moving stand motor 274 through the slide pusher 270. The moving bracket encoder 272 controls the speed of the moving bracket motor 274. The control unit 280 controls the moving distance of the heating source 122 by controlling the moving bracket encoder 272, the moving bracket motor 274, the chain 276, the sliding pusher 270, and the moving bracket 120. The control unit 280 controls the size of the paper by controlling the flow rate of the paper. Applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the note on the back? Matters before filling out this page) -------- II --------- Line 41 ^ — Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546pii 1 .doc A7 B7 5. Description of the Invention (w) The device 278 controls the amount of gas supplied to the heating source 122. The control unit 280 controls the moving speed of the tail end support frame 116 by controlling the tail end support frame driving encoder 273, and the tail end support frame driving encoder 273 is used to control the rotation speed of the tail end support frame driving motor 275. The control unit 280 controls the extension speed of the glass rod 106 by controlling the moving speed of the tail support frame 116. The tail end support frames 114 and 116, the fixed clip 118, the movable clip 119, the tail end support frame drive motor 275, and the tail end support frame drive encoder 273 constitute an extension unit for extending the glass rod 106. The measured diameter and position data can be measured by the diameter measuring device 124, and the data on the length change of the glass rod 106 can be input from the moving distance of the tail support 116 in the control unit 280. Come to get. The control unit 280 controls the heating condition based on input data such as the moving distance of the heating source 122 and the amount of gas provided to the heating source 122, and also controls the extension speed of the tail end support frame 116 based on the input data. Fig. 26 shows a detailed flowchart of the second extension process (S206) of the glass rod in Fig. 4. First, the virtual rod 108 is supported via a fixed clip 118 and a movable clip 119. Subsequently, both ends of the glass rod 106 are connected to the virtual rod 108 (S146), so that the glass rod 1 () 6 is placed on the glass rod second extension device U1. Next, a 3mm deep cut 284 is made as the same mark on the connection between the glass rod 106 and the virtual rod 108. Next, the start and finish positions of the diameter measurement of the glass rod 106 and the target diameter are set (S150). The diameter (Si52) of the glass rod 106 corresponding to the position along the axis of the glass rod 106 was measured. According to the measurement diameter and position corresponding to the measurement diameter ', set the extension in a plurality of positions along the axis direction of the glass rod 106. 36 This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 public love) (Please First read the note on the back? Matters and then fill out this page) -------- · 1 Order · '-------- Line Winning Ministry of Economic Affairs Intellectual Property Bureau Employee Consumption Cooperatives Printing Ministry of Economic Affairs Intellectual Property Printed by the Bureau's Consumer Cooperatives 517043

File: 5546pii 1 .doc Magic B7 V. Description of the invention (outside) Long speed. According to the average of the diameter of the glass rod 106, the heating conditions including the amount of gas provided to the heating source 122 and the moving distance of the heating source 122 are set (S153). The glass rod 106 is heated by the heating source I22 with a preset heating condition , And gradually extended by the tail end support frame 116 having a preset extension speed. In order to detect the positions of both ends of the glass rod 106, the diameter measuring device 124 then detects the position of the cutout 284 provided around the connection between the glass rod 106 and the virtual rod 108. In order to measure the length change of the glass rod 106 along the axis direction, the encoder 273 is driven to measure the moving distance of the tail support frame 116 through the tail support frame. Next, the diameter of the glass rod 106 is measured at a position about 50 mm away from the cutout 284 toward the center of the glass rod 106 (S156). The heating position of the heating source 122 is set based on the position of the cutout 284 and the length change of the glass rod 106 along the axis direction. The amount of gas provided to the heating source 122 is set according to the measurement diameter. The moving speed of the tail end support frame 116 is set according to the measured diameter (S157). The glass rod 106 is heated and extended under a preset heating condition and extension speed, so that the glass rod 106 is pulled out by the tail end. The shape of the rear end of the glass rod 106 thus becomes a cone-like shape, so that the diameter of the rear end of the glass rod 106 is reduced (S158). Then measure the diameter of the pull-out part of the tail end to detect the position of the pull-out part at the tail end, and extend this part by pulling out at the corresponding end of the pull-out part. Driven by the tail end of the encoder to measure the tail end of the encoder through the tail end support frame (273) (S160). Then, the start and finish positions of the flame polishing for polishing the glass rod 106 with the flame and the heating power of the flame are set. This setting is based on the detection position of the tail end of the paper. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297). (Please read the precautions on the back before filling this page) ----- -^-Tr --------- line 4 ^^ · A7 517043

File: 5546pii 1 .doc __ B7___ V. Description of the invention (without Γ) and the length change of the glass rod 106 along the axis direction (S161). · According to the position of the black shadow on the glass rod 106, set the position to start and finish the flame honing. During the tail-end drawing process, black shadows will be generated in one of the areas of strong heating. The glass rod 106 will be flame-honed by the heating source 122, as a step from the set flame honing start position to the set flame honing completion position Each preset flame condition (S162). After flame honing, the shape of the glass rod 106 is checked by measuring the completed diameter and length of the glass rod 106 (S164). The virtual pole 108 is then removed from the glass pole 106 (S166). Finally, the glass rod 106 is subjected to surface treatment to produce a preform 107 (S168). As described above, before each extension (S154), tail end extraction (S158), and flame honing (S162) processes, the diameter is measured at a corresponding position along the axis of the glass rod 106. From this data, the heating condition and extension speed for the next process can be accurately set. Therefore, a stable and high-quality glass rod 106 can be manufactured. Figure 27 shows an example of the cooling device 330 provided on the fixed clip 118 and the movable clip Π9 of the second extension 111 of the glass rod. The cooling device 330 protects the fixed clip 118 and the movable clip 119 from the radiant heat generated from the heating source 122. This can be achieved by circulating cooling water around the fixed clip 118 and the movable clip Π9. The cooling device 33 uses a gas or a liquid as a cooling medium. The cooling device 330 can be provided on the fixed clip 118 and the movable clip Π9 to control the deformation of the fixed clip 118 and the movable clip 119. This allows controlling the temperature rise of the fixed clip 118 and the movable clip 119. Therefore, the transmission accuracy of the driving force of the rotating glass rod 106 is maintained, and the paper size of the glass rod 38 applies to the Chinese National Standard (CNS) A4 Regulation (210 X 297) ---------- ^-Order --------- (Please read the precautions on the back before filling out this page) Printed by the Employee Consumption Cooperative of Intellectual Property Bureau of the Ministry of Economy

File: 5546piil.doc A7 B7 V. Description of the invention (3fc) The heating effect of 106 becomes more equal. Therefore, the variation of the diameter of the glass rod 106 is reduced. (Example) Through a fixed clamp 118 and a movable clamp 119 with a cooling device 330 and a heating source 122 as shown in FIG. 27, a glass rod 106 with a diameter of 50 mm and a length of 1000 mm is flame-honed by flame. 〇2) Hydrogen (H2) with 300 SLM is supplied to the heating source 122 as a combustion gas. The glass rod 106 is rotated at a speed of I5 rpm. The glass rod 106 is flame-honed by moving the heating source 122 at a speed of about 20 mm / min. Fig. 28 is a graph showing the temperature of the fixed clip 118 and the movable clip 119 of the above example and the comparative example described below. The vertical axis represents the temperature of the fixed clamp 118 and the movable clamp 119, and the horizontal axis represents the flame honing time. The temperature of the exemplary fixed clip 118 and the movable clip 119 is maintained at a low temperature of about 45 degrees (45 ° C). Through the small deformation of the fixed clip 118 and the movable clip 119, the driving force of the rotating glass rod 106 is changed. Therefore, the diameter variation of the flame-honed glass rod 106 is only 0.02%. (Comparative example) In the case where the cooling device 330 is removed from the fixed clip 118 and the movable clip 119 of FIG. 27, the glass rod 106 is honed by flames in the same condition as the above example. As shown in FIG. 28 As shown, the temperature of the fixed clip 118 and the movable clip 1 M reaches approximately 100 degrees Celsius. As the fixed clip 118 and the movable clip 119 are deformed, the driving force of the rotating glass rod 106 is changed. After the flame honing is increased to 1.0%, the diameter change of the glass rod 106 will be larger than the above template. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ----------- -------- Order --------- line (please read the notes on the back before filling out this page) Printed by the Intellectual Property Bureau Employee Consumer Cooperatives of the Ministry of Economic Affairs Printed

File: 5546piil.doc J \ t B7 V. Description of the invention (^ 1) The degree of variation of the example. FIG. 29 shows the relationship between the distance between the heating source 122 and the diameter measuring device 124 and the percentage change in the diameter of the glass rod 106. The change rate (%) of the diameter of the glass rod 106 represents (the largest diameter of the glass rod 106-the minimum diameter of the glass rod 106) / (average diameter) X 100. The diameter measuring device 124 of the second extension device 111 of the glass rod shown in FIG. 25 is provided at a position which is a certain distance from the heating source 122 from 10 mm to 50 mm. Therefore, the diameter of the glass rod 106 can be accurately measured, allowing the diameter of the glass rod 106 to be accurately controlled. When the glass rod 106 is extended, the position of the highest temperature of the glass rod 106 is slightly different from the position heated by the heating source 122 because the heating source 122 moves. In the position of the highest temperature of the glass rod 106, the extension speed per unit becomes the maximum. It is desirable to control the heating power of the heating source 122 and the moving speed of the movable clip 119 based on the diameter of the position of the maximum extension speed and the diameter target 値 '. The moving speed of the movable clip 119 is controlled based on the difference between the diameter target 値 and the diameter measured at the position of the maximum extension speed of the glass rod 106. This can be accomplished by providing a diameter measuring device 124 at a distance from the heating source 122. The above-mentioned position at a certain distance from the heating source 122 ranges from 10 mm to 50 mm from this position, wherein the heating source 122 is provided in a direction opposite to the moving direction of the heating source 122. Therefore, the diameter measuring device 124 is provided at a position from 10 mm to 50 mm from the heating source 122, wherein the heating source 122 is located in a direction opposite to the moving direction of the heating source 122. 40 This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) ------------------- Order --------- ( (Please read the notes on the back before filling out this page.) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546pii 1 .doc pj B7 V. Description of the Invention (Yes) If the heating source 122 used to heat the glass rod 106 is a hydrogen-oxygen burner, the flow rate of hydrogen supplied to the heating source 122 is set from 30 liters / Minute to 500 liters / minute. The ratio of hydrogen to oxygen flow rate is set from 1.5 to 3.0. The moving speed of the heating source 122 is controlled within the limits of 2mm / min and 65mm / min. If the hydrogen flow rate is less than 30 liters / minute ', the heating capacity will be insufficient, and if the hydrogen flow rate is more than 500 liters / Minute 'then fuel will be wasted. If the ratio of the flow rate of hydrogen to oxygen is outside the above range ', it will be difficult to extend the glass rod 106 at this time due to insufficient heating. If the heating source 122 used to heat the glass rod 106 is a propane gas burner, the flow rate of the propane gas supplied to the heating source I22 is set from 1 liter / minute to 15 liter / minute. The ratio of the gas flow rate of C-house gas to oxygen was set from 0.1 to 0.3. The moving speed of the heating source 122 is controlled within the limits of 2 mm / min and 65 mm / min. If the flow rate of the propane gas is less than 1 liter / minute ', the heating amount will be insufficient, and if the flow rate of the propane gas is more than 15 liters / minute, the fuel will be wasted. In addition, if the ratio of the flow rate of propane gas to oxygen is outside the above range, it is difficult to extend the glass rod 106 at this time because the heating amount becomes insufficient. The moving speed of the heating source 122 is preferably controlled within the limits of 2 mm / min and 65 mm / min. If the moving speed of the heating source 122 is lower than 2mm / min, it will take more time to extend the glass rod 106. Conversely, if the moving speed of the heating source 122 is higher than 65mm / minute, because the heating glass rod 106 is to its center The speed of the part is too fast, and it will be difficult to extend the glass rod 106 at this time. (Example 1) By setting the distance between the heating source 122 and the diameter measuring device 124 to 15 mm, the extension of the glass rod 106 is started. During the extension of the glass rod 106, this paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ------------------- ^ Order,- (Please read the precautions on the back before filling out this page) Line% 517043 A7

File: 5 546pii 1 .doc ___B7 ___ 5. Description of the Invention (^) (Please read the precautions on the back before filling this page) According to the difference between the measured diameter of the glass rod 106 and the target diameter, control the heating source 122 and The moving speed of the end support 116. The combustion condition of the heating source I22 was set to include a hydrogen flow rate of 2 to 4 liters / minute, a ratio of hydrogen to oxygen flow rate of 2.5, and a moving speed of the heating source 122 to 11 mm / min. The change rate of the diameter of the glass rod 106 was 0.9% after the extension process. (Example 2) The distance between the heating source 122 and the diameter measuring device 124 is set to 40 mm. The flow rate of hydrogen was set at 199 liters / minute. The ratio of hydrogen to oxygen flow rate is set to 2.5. The moving speed of the heating source 122 is set to 13 mm / min. The rate of change in the diameter of the glass rod 106 was 0.6% after the extension process. (Comparative Example 1) The distance between the heating source 122 and the diameter measuring device 124 was set to 5 mm. The flow rate of hydrogen was set at 209 liters / minute. The ratio of hydrogen to oxygen flow rate is set to 2.5. The moving speed of the heating source 122 is set to 12 mm / min. Because the distance between the heating source 122 and the diameter measuring device 124 is too close, the rate of change in the diameter of the glass rod 106 after the extension process is 3.7%. This is greater than the rate of change of Examples 1 and 2 above. ^ (Comparative example 2) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy Set the distance between the heating source 122 and the diameter measuring device 124 to 60 mm. The flow rate of hydrogen was set at 237 liters / minute. The ratio of hydrogen to oxygen flow rate is set to 2.5. The moving speed of the heating source 22 was set to 10 mm / min. Because the distance between the heating source Π2 and the diameter measuring device 124 is too far, the variation rate of the diameter of the glass rod 106 after the extension process is 2.5%. This rate of change is greater than the rate of change of Examples 1 and 2 above. 42 Paper size applies to China National Standard (CNS) A4 (210 X 297 Public Love) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546pii 1-doc Magic --- SI ---- 5. Explanation of the invention (extension) (Comparative example 3) Set the distance between the heating source 122 and the diameter measuring device 124 to 15mm. The flow rate of hydrogen was set at 215 liters / minute. The ratio of hydrogen to oxygen flow rate is set to 1.0. The moving speed of the heating source 122 is set to 12 mm / min. Because the ratio of the flow rate of hydrogen to oxygen is 1.0, which is less than the recommended minimum 値 ·· 5 ', the slope rod 106 cannot be extended. (Comparative Example 4) The distance between the heating source 122 and the diameter measuring device 124 was set to 15 mm. The flow rate of hydrogen was set at 195 liters / minute. The ratio of the flow rate of hydrogen to oxygen is set to 4.0. The moving speed of the heating source 122 is set to 13 mm / min. Because the ratio of hydrogen to oxygen flow rate is 4.0, which is greater than the recommended maximum 値 3.0, the sloped pole 106 cannot be extended. (Comparative Example 5) The distance between the heating source 122 and the diameter measuring device 124 was set to 15 mm. The flow rate of hydrogen was set at 204 liters / minute. The ratio of hydrogen to oxygen flow rate 5 is again 2.5. The moving speed of the heating source 122 is set to 70 mm / min. Because the moving speed of the heating source I22 is 70 mm / min, which is greater than the recommended maximum moving speed of 65 mm / min, the glass rod 106 cannot be extended. FIG. 30 shows a structure diagram of the second extension device of the glass rod, which has a structure in which a force measuring device 282 is provided on the second extension device 111 of the glass rod shown in FIG. The glass rod second extension device 1U has a force measuring device 282 'for measuring the tension of the glass rod 106 supplied to the movable clip 119. The second extension device of the glass rod 111 uses a moving bracket encoder 272, which can be used for 43 paper sizes in accordance with China National Standard (CNS) A4 (21〇X 297 mm) " ~ --- -------- ----------- Order --------- (Please read the note on the back? Matters before filling out this page) 517043

File: 5 546piiId〇C A7 B7 V. Description of the invention (dead) (Please read the precautions on the back before filling in this page) Detect the position of the heating source 122 on the mobile stand 120. The tension measurement device 282 is connected to the control unit 280. The control unit 280 controls the moving speed of the tail end support frame 116 according to the tension of the glass rod 106 provided from the tension measuring device 282. This is continued until the moving distance of the heating source 122 reaches a prescribed distance. Fig. 31 shows a detailed flowchart of the extension process (S154) of Fig. 26. First, the glass rod 106 is preheated until a predetermined area of the glass rod 106 is melted and softened by the heating source 122. This will allow the glass rod 106 to be extended (S132). Then, the heating source 122 located on the moving support 120 is moved through the moving support 120. In the early extension stage, it is desirable that the moving speed of the heating source 122 is as slow as possible so that the variation in the diameter of the glass rod 106 can be reduced. The movement of the heating source 122 may be a certain speed. The amount of gas supplied to the heating source 122 may be quantitative. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Next, control the movement speed of the tail end support 116 to make the tension of the glass rod 106 measured by the tension measurement device 282 roughly in the stable state. The average tension is 80% to Within 110% (S136). This steady state will be explained below. The movement speed of the tail end support frame Π6 is initially set based on the diameters of a plurality of positions of the glass rod 106 along the axis direction, and reset according to the tension of the glass rod 106. The glass rod 106 is extended by the above-mentioned tension load until the heating source moves approximately 50 mm to 150 mm (S138). If the control unit 280 detects that the heating source 122 has generally moved from 50 mm to 150 mm (S138), the moving speed of the tail end support frame 116 is changed to a speed in a steady state, which will be explained below. This can be done by controlling the encoder 273 by driving the tail support (S140). In the extension period of glass rod 106, this paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) A7 517043

File: 5 5 46piil.doc ____B7____ 5. In the description of the invention, the diameter measuring device 124 measures the diameter of the glass rod 106 (Sl42). When the glass rod 106 is extended to a desired diameter and length, the glass rod 106 is extended (S144). The speed in the steady state is the material balance before the extension and the speed after the extension. Here, the initial diameter of the glass rod 106 is represented by Di before elongation, the obtained target diameter is represented by D2, the moving speed of the heating source 122 is represented by Vi, and the extension speed of the glass rod 106 is represented by V2. For example, suppose that the extension occurs only in the heated area, so that the heated area and extension are very small. When the following equation is valid, V2 is equivalent to the speed in a steady state. Therefore, V2 can be set by adjusting V according to 0 and D2, and the moving speed of the tail end support frame 116. The tension of the glass rod 106 in the steady state is the speed when the end support frame 116 of the glass rod 106 is moved at the speed at which the steady state is extended. FIG. 32 is a diagram showing a diameter change process during the extension of the glass rod 106. FIG. When heated, the glass rod 106 softens. As shown in Fig. 32 (1), it may happen that the glass rod 106 cannot be sufficiently softened only by preheating. When the heating source 122 and the tail end support frame 116 start moving at a predetermined speed, the tension generated on the glass rod 106 will increase from twice the normal tension to three times the normal tension. Then, the pre-heated area will be quickly extended, and the pre-heated diameter will be reduced to the shaded portion shown in Figure 32 (2). The extension of the glass rod 106 occurs almost entirely in the pre-heated area, which is reheated by the heating source 122 and extended a small amount. Therefore, the diameter of the neck will occur on the glass 45 ^ paper size applicable to China National Standard (CNS) A4 specifications (210 X 297 mm) " " ---------------- --- Order --------- (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043: ile: 5546piil.doc A7 B7 V. Description of Invention ( To) on the glass rod 106, as shown in Figure 32 (3). (Please read the precautions on the back before filling out this page.) The diameter of the glass rod 106 can easily change from the extended starting location of the glass rod 106 to a location 50mm away from the starting location. If the extension is more advanced than this place, the glass rod 106 providing heat to the glass rod 106 is softened and the extension speed of the glass rod 106 will be balanced to a stable state. Therefore, the diameter change of the glass rod 106 will not occur, as shown in Fig. 32 (4). The glass rod 106 can be extended by controlling the moving speed of the tail support frame 116. This aim is to maintain the tension of the glass rod 106 at the early extension stage to be approximately 110%, or less than the average tension of the tension in the steady state. Variations in diameter during the early extension phase of the glass rod 106 can therefore be reduced. This is because the heat supplied to the glass rod 106, the softening speed of the glass rod 106, and the extension speed of the glass rod 106 can be balanced. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. If the tension of the glass rod 106 is lower than 80% during the early extension stage, the distance between the diameter of the glass rod 106 and the target 値 needs to be longer. Therefore, the area of the extended glass rod 106 that can be used as a product is shortened. This reduces the yield factor of the production process and increases the time it takes for the glass rod 106 to reach the target diameter. Therefore, it is desirable to control the tension of the glass rods during the early elongation period, generally in the steady state range from 80% to 110%. Fig. 33 shows a process of extending the glass rod 106 according to the extension process (S154) of Fig. 31. First, as shown in Figs. 33 (1) and (2), after the preheating of the glass rod 106, the heating source 122 and the tail end support frame 116 begin to move to start the extension of the glass rod. Since the tension of the glass rod 106 is controlled at 110% or less than the steady state tension, the excessive tension will not be supplied. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the employee consumer cooperative 517043 FMe; 5 546piil-d〇c A7 B7 V. Description of invention («) to glass rod 106. Due to the rapid extension, no neck will occur on the glass rod 106. If the heating source 122 moves a predetermined distance under this equilibrium condition, the heat supplied to the glass rod 106, the softening speed of the glass rod 106, and the extension speed of the glass rod 106 will be balanced. Therefore, variations in the diameter of the glass rod 106 can be prevented. If the moving speed of the tail end support 116 is continuously controlled according to the tension, a change in the diameter may occur. The tension of the glass rod 106 will change as the amount of heat provided by the heating source 122 changes. The moving speed of the tail end support frame 116 is then changed to maintain the tension of the glass rod 106 at a certain level, resulting in a change in the diameter of the extended glass rod 106. Therefore, after starting to extend the upper heating source 122 to move a predetermined distance, a change in the diameter of the glass rod 106 caused by a delicate tension change can be prevented by changing the speed of the tail end support frame 116 to a stable state. Until the heating source 122 moves 50 mm from the start extension point, the heat supplied to the glass rod 106, the softening speed of the glass rod 106, and the extending speed of the glass rod 106 will not be balanced. As a result, if the elongation speed is changed to a steady state speed before the heating source 122 moves 50 mm, the neck of the glass rod 106 will occur due to the change in diameter. Therefore, the tension of the glass rod 106 needs to be controlled at about 110% or less, until the heating source 122 moves about 50 mm. It is desirable to change the moving speed of the tail end support frame 116 to a steady state speed before the heating source I22 moves more than approximately 150 mm. (Example) The glass rod 106 is extended by the glass rod second extension device ill. The glass rod 106 has an outer diameter of 65 mm and a length of 980 mm. Virtual pole 108 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ------------------- Order ------ --- (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043 FMe: 5 546piild〇C A7 _ B7_____ 5. Description of the invention (from) It has an outer diameter of 60mm and a diameter of 25 The length of 0 mm is connected to both ends of the glass rod 106. During the connection between the glass rod 106 and the virtual rod 108, the rotation speed around the axis is 30 rpm. A hydrogen-oxygen burner is used as the heating source 122. The oxygen and hydrogen supplied to the heating source 122 were 96 liters / minute and 240 liters / minute, respectively. After the glass rod 106 is pre-heated, the glass rod 106 is extended by a moving heating source 122 at a moving speed of 12.4 mm / min. When the glass rod 106 is extended to reduce the diameter of the glass rod 106 from 65 mm to 50 mm, the tension in the steady state is about 100 kgf / cm2, and the moving speed of the tail end support 116 in the steady state is 8.6 mm / min. Control the moving speed of the tail end support frame 116 so that the tension will not exceed 110 kgf / Cm2 until the heating source 122 moves 100 mm from the extension start point. After the heating source 122 moves 100 mm, control the tail end support frame 116 by The moving speed is 8.6 mm / min to extend the glass rod 106, which is the speed in a steady state. Figure 34 is a graph showing the change in the tension of the glass rod 106 during the early extension phase of the example. The vertical axis represents the tension generated by the glass rod 106, and the horizontal axis represents the moving distance of the heating source 122 after the start of the extension. When the heating source 122 is moved forward by 100 mm, the tension of the glass rod 106 during the early extension phase is 110 kgf / cm2 or less. FIG. 36 is a graph showing a change in the diameter of the glass rod 106 after the glass rod 106 is extended. The vertical axis represents the distance along the radiation direction of the glass rod 106, and the horizontal axis represents the distance along the longitudinal direction of the glass rod 106. The glass rod 106 will be extended according to the method with a small diameter variation such as the neck, and after the extension starts, the diameter of the glass rod 106 can be reduced to a large paper size. Applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the notes on the back before filling out this page) ------- * 1 order --------- line Thai 517043

File: 5546piil.doc A7 B7 V. Description of the Invention (please read the precautions on the back before filling out this page) The target diameter is about 100mm in the longitudinal distance. The accuracy of the diameter of the glass rod 106 in this area will be determined by example. The method is extended in the steady state speed, which has approximately the same accuracy as that of extending the diameter of the glass rod 106 by the conventional extension method. (Comparative example) A glass rod 106 having a diameter of 65 mm will be extended to The diameter of 50mm. The condition of the moving speed and the amount of gas supplied to the heating source 122 are the same as the above example. After the extension is started, the glass rod 1 is extended by controlling the moving speed of the tail end support Π6 to 8.6 mm / min. 6. This is the speed in the steady state. Figure 35 shows the tension change of the glass rod 106 in the early extension stage of the comparative example. The vertical axis represents the tension generated by the glass rod 106 and the horizontal axis. Represents the moving distance of the heating source U2 after the start of the extension. In the early extension stage, the tension of the glass rod 10 was increased to 300 kgf / cm2, which is three times the steady state tension. This will happen when the heating source 122 moves to the first 100 mm. As shown in Figure 36, printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, after the comparison example is extended, the glass rod 106 has about 10% longer than when it was initially extended. The large neck of 111111. Because the wave continues until it is about 300mm longer than the beginning of the extension, 'This area cannot be used as a product' and the yield will be reduced. Figure 37 shows the drawing process at the end of Figure 26 (S158 ) Detailed flow chart. First, the position of the glass rod 106 pulled out at the tail end is detected (S169) ° Then, a predetermined area (S170) of the glass rod 106 is pre-heated by the flame of the heating source 122 until the specified area is almost Until softening. Then the paper size is applied to the Chinese National Standard (CNS) A4 (210 x 297 mm) via a heating source 517043

File: 5 546piild0C A7 B7 V. Description of the invention (M) 122 and moving end support 116, heating the specified area of the glass rod 106 to extend the glass rod 106, so that the diameter of the specified area is reduced (S172). (Please read the precautions on the back before filling in this page.) The heating source 122 moves from the center of the specified area toward the middle surface of the glass rod 106. Next, the heating source 122 heats the glass rod 106 with a flame second (S174 ). The concentration of this flame is smaller than that of the pre-heated flame (S170). The specified area of the glass rod 106 is further extended by the moving tail end support frame 116, so that the diameter of the specified area is reduced (S176). The prescribed area of the glass rod 106 will then be melted by this flame. Again, the concentration of this flame is less than the concentration of the preheated flame (S170). Fig. 38 shows a schematic view of the cutout 284, which is provided as a mark on the connection between the glass rod 106 and the virtual rod 108. This allows the tail-end pulled-out position detection process (S169) shown in Figure 37 to detect the tail-end pulled-out position. A marker is provided on the connection between the glass rod 106 and the virtual rod 108. The device for recognizing the mark is installed on the second extension device 111 of the glass rod to detect the position of the mark. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The starting position of the tail end pull-out process is set based on the detected marker position. The extension process of the glass rod 106 is completed in setting the tail end pull-out start position, and the tail rod pull-out process of the glass rod 106 is started at the same time. When the recognition device is a diameter measurement device, the method shown in Fig. 38 is used. Fig. 39 shows a schematic view of a fluorescent paint 287, which is used for the connection between the glass rod 106 and the virtual rod 108 as another example of marking. When the device for cognitive marker is an image processing device, the method shown in Fig. 39 is used. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 517043 A7

File: 5546piil.doc V. Description of the Invention (You) Figure 40 shows the schematic diagram of the second extension device 111 of the glass rod that detects the cutout 284 during the tail position detection process (S169). First, The virtual rod 108 is staggered on both ends of the glass rod 106. The glass rod 106 with the virtual rod 108 on both ends is fixed to the fixed clip 118 and the movable clip 119, not shown in the figure. A 3mm deep incision 284 is provided to surround this joint position. This connection position is caused by the connection between the glass rod 106 and the virtual Fortune 108. During the extension of the glass rod 106, the diameter measuring device 124 measures the diameter of the glass rod 106. When the diameter measuring device 124 measures the position of the cutout 284 by detecting the change in the diameter of the glass rod 106, the second extension device 111 of the glass rod starts the tail-end drawing process. The starting position of the tail end pull-out is slightly toward the middle of the glass rod 106 connected between the glass rod 106 and the virtual rod 108. Moreover, there will be no bubbles or bubbles with a diameter of 0.3 mm or more at the beginning of the tail end pull-out. Next, the process moves from extended to tail-end pull-out process. When the mark is a mark 287, a fluorescent paint is applied to the connection between the glass rod 106 and the virtual rod 108. The camera of the image processing device can detect the fluorescent paint installed on the position of the diameter measuring device 124, and the diameter measuring device 124 is installed on the moving bracket 120. During the extension of the glass rod 106, the camera processes the pattern of the glass rod 106. If the camera detects the fluorescent paint, the second extension device 111 of the glass rod starts the tail-end drawing process. The starting position of the tail end pull-out is slightly toward the middle of the glass rod 106 connected from the glass rod 106 to the virtual rod 108. Further, there is no bubble or a bubble having a diameter of 0.3 mm or more at the position where the tail end is pulled out at the beginning. The process then moves from extended to tail-end and out of the process. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ------------------- Order --------- (Please (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546pii 1 .doc A7 B7 V. Description of the invention (yp (Please read the note on the back? Matters before filling out this page) Figure 41 shows the end of the glass rod 106 in the flowchart shown in Figure 37 During the end pull-out process, after detecting the position where the tail end is pulled out (S169), the movement diagram of the heating source 122 and the tail support base 116. During the pre-heating process for the tail end pull-out (S170), the heating source The flame of 122 heats the specified area of the glass rod 106 until the glass rod 106 is almost softened. During the extension process (SH2) with the tail end pulled out, the heating source 122 heats the specified area of the glass rod 106, and the tail support platform 116 Extend the specified area of the glass rod 106. In this way, reduce the diameter of this specified area. In the second heating process (S174), printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the tail support 116 stops, and the heating source 122 will start from The center of the specified area is moved toward the middle surface of the area of the glass rod 106 (to the left in the figure). Then, the heating source 122 heats the glass rod 106 with a flame, the concentration of which is less than the concentration of the pre-heated flame (S170 ). Pull out at the end During the second extension process (S176), the heating source 122 moves to the left in the figure and heats the glass rod 106. The tail support platform 116 also moves to extend the specified area of the glass rod 106. It is pulled at the tail end. During the melting process (S178), the heating source 122 heats the glass rod 106 with a flame, the concentration of which is less than the concentration of the preheated flame (S170). The position of the heating source 122 is at the same position as the first During the extension process (S176). The tail support 116 is moved to melt the glass rod 106. Fig. 42 shows another method of the tail end drawing process (S158) in the tail end drawing process (S158) of Fig. 37. Setting example. This method controls the amount of gas, the moving distance of the heating source 122, and the moving speed of the tail support table 116 according to the progress time of the tail end of the glass rod 106. The amount of gas, the moving distance of the heating source 122, and the tail The paper size of the support 116 is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) 517043

File: 5546pii 1 .doc ^ B7

V. Description of the invention GO (Please read the note on the back? Matters before filling out this page) The movement speed is set once. This setting is based on the position of the cutout 284, and the change and extension speed setting of the length and diameter of the glass rod 106 along the axis direction in the second heating condition (S157). The second extension device 111 of the glass rod then resets the amount of gas, the moving distance of the heating source 122, and the movement of the tail support table 116 according to the progress time of the tail rod drawing process of the glass rod 106 in the tail drawing process (S158). speed. For example, in the pre-heating process (S170) with which the tail end is pulled out, it is performed for 300 seconds, and the moving distance of the heating source 122 is set to 0 mm. The moving speed of the tail support 116 is set to 0 mm / min. The amount of hydrogen (H2) used to heat the source 122 was set to 250 cc / min. The amount of oxygen (02) (internal) output from the internal nozzle of the heating source 122 was set to 30 cc / min. The amount of oxygen (02) (external) output from the external nozzle of the heating source 122 was set to 100 cc / min. In accordance with the above situation, the heating source 122 heats the glass rod 106. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs During the extension process (S172) for the tail end pull-out, it took 60 seconds to set the amount of hydrogen (H2) for heating source 122 to 250cc / min. The amount of oxygen (02) (internal) output from the internal nozzle of the heating source 122 was set to 30 cc / min. The amount of oxygen (02) (external) output from the external nozzle of the heating source 122 was set to 100 cc / min. In accordance with the setting conditions described above, the heating source 122 heats the glass rod 106. The moving distance of the heating source 122 is set to 0 mm, and the tail support base 116 extends the glass rod 106 at a moving speed of 10 mm / min. In the second heating process (S174), it was performed for 20 seconds, and the moving speed of the tail support table 116 was set to 0 mm / min. The moving distance of the heating source 122 is set to 15 mm. The amount of hydrogen (H2) used to heat the source 122 was set to 130 cc / min. The amount of oxygen (〇2) (internal) output from the internal nozzle of the heating source 122 is set to the size of this paper applicable to China National Standard (CNS) A4 (210 X 297 mm) 517043

File: 5 546pn 1 .doc B7 A7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (irf) 15cc / min. The amount of oxygen (02) (external) output from the external nozzle of the heating source 122 was set to 50 cc / min. According to the above setting condition, the heating source 122 heats the glass rod 106 °. During the second extension process (SH6) for pulling out the tail end, it took 180 seconds, and the moving distance of the heating source 122 was increased from 15mm to 25mm. The amount of hydrogen (H2) used to heat the source 122 was set to 130 cc / min. The amount of oxygen (02) (internal) output from the internal nozzle of the heating source 122 was set to 15 cc / min. The amount of oxygen (02) (external) output from the external nozzle of the heating source 122 was set to 50 cx / min. In accordance with the setting conditions described above, the heating source 122 heats the glass rod 106. The tail support 116 extends the glass rod 106 at a moving speed of 10 mm / min. Finally, during the melting process with the tail end pulled out (S178), it was performed for 30 seconds. The heating source I22 did not move from the position during the second extension process with the tail end pulled out, so the moving distance was maintained at 25mm. The amount of hydrogen gas (H2) used to heat the source 122 was set to 130 cc / min. The amount of oxygen (02) (internal) output from the internal nozzle of the heating source 122 was set to 30 cc / min. The amount of oxygen (02) (external) output from the external nozzle of the heating source 122 was set to 20 cc / min. In accordance with the above setting conditions, the heating source 1M heats the glass rod 106. The tail support 116 melts the glass rod 106 at a moving speed of 120mm / min. ◦ According to the setting situation shown in Figure 42, the glass rod 106 with a diameter of 60nnn will be pulled out by the second end of the glass rod extension U1. . The shape of the preform in the area pulled out by the tail end forms a conical shape. The length and diameter of this area are 61mm and 60mm, respectively. The time required for the tail-end pull-out process is 12 minutes. Figure 43 shows that during the drawing process (S158) at the end of Figure 37, 54 paper sizes are applicable to China National Standard (CNS) A4 (210 X 297 mm) -------- ----------- Order --------- (Please read the notes on the back before filling this page) 517043

File: 5546pii 1 .doc A7 B7 V. Description of the invention (> B) Another setting example of another method of tail end pull-out process. This method controls the amount of gas, the moving speed of the heating source 122, and the moving speed of the tail support platform 116 according to the moving distance of the tail support platform II6. The glass rod second extension device 111 detects the moving distance of the tail support platform 116. According to the position of the cutout 284, the length and diameter change and extension speed setting of the glass rod 106 along the axis direction in the second heating condition (S157), the moving distance of the heating source 122 and the moving speed of the tail support table 116 are set once. The second extension device 111 of the glass rod resets the amount of gas, the movement distance of the heating source 122, and the movement speed of the tail support base 116 according to the movement distance of the tail support base 116 during the tail end drawing-out process (S158). One incident was that the tail support platform 116 could not be measured because the tail support platform 116 did not move. When the glass rod 106 is not sufficiently heated during the tail-end drawing-out process, this may occur due to insufficient power of the drive motor 275 from the tail support table. When the output of the tail support motor 275 is not large enough, an AC servo motor that can detect the torque of the output shaft can be used to drive the tail support 116. A threshold can be set to use the torque generated by the tail support drive motor 275. When the torque exceeds this threshold, the glass rod second extension device 111 may determine that the heat is insufficient. Then, the second extension device 111 of the glass rod can stop the driving of the tail support platform 116 for a period of time, and increase the amount of gas supplied to the heating source 122. The setting condition shown in FIG. 43 is the same as the setting condition shown in FIG. 42 except that the “Performance time” setting is changed to the “Tail support 116 moving distance” setting. The tail-end drawing method shown in FIG. 43 also has a pre-heating process (S170) for tail-end drawing, an extension process (Sl72) for tail-end drawing, a second heating process (S174), and The first paper size drawn at the tail end is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -------------------- Order ---- ----- line (Please read the phonetic on the back? Matters before filling out this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546pii 1 .doc A7 B7 V. Description of Invention (Township) Second extension process (S176), and melting process (S1.78) for tail-end drawing. In each process stage, the amount of gas and the moving distance of the heating source 122 and the moving speed of the tail support U6 are set according to the movement distance of the tail support 116. For example, in the pre-heating process for pulling out the tail end (S170), because the moving speed of the tail support platform 116 is set at 0 mm / min, 300 is measured after the pre-heating process for pulling out the tail end begins second. In other words, the moving distance of the tail support table 116 is set to 0 mm in 300 seconds. The amount of hydrogen gas (H2) used to heat the source 122 was set to 25 cc / min. The amount of oxygen (02) (internal) output from the internal nozzle of the heating source 122 was set to 30 cc / min. The amount of oxygen (02) (external) output from the external nozzle of the heating source 122 was set to 100 cc / min. In accordance with the above situation, the heating source 122 heats the glass rod 106. When the preheating process with the tail end pulled out has elapsed 300 seconds, the process moves to the next step. During the extension with the tail end pulled out (S172), when the moving distance is changed from 0 mm to 30 mm, the amount of hydrogen (H2) used to heat the source 122 is set to 250 cc / min. The amount of oxygen (02) (internal) output from the internal nozzle of the heating source 122 was set to 30 cc / min. The amount of oxygen (02) (external) output from the external nozzle of the heating source 122 was set to 100 cc / min. In accordance with the setting conditions described above, the heating source 122 heats the glass rod 106. The moving distance of the heating source 122 is set to 0 mm, and the tail support base 116 extends the glass rod 106 at a moving speed of 10 mm / min. During the second heating process (S174), the movement speed of the tail support base 116 is set to 0 mm / min, so that the movement distance of the tail support base 116 is maintained at 30 mm. The moving distance of the heating source 122 is set to 15 mm. The amount of hydrogen (H2) used to heat the source 122 was set to i30 cc / min. The paper is delivered from the internal nozzle of the heating source 122 to the size of the Chinese national standard (CNS) A4 (21 × 297 mm) ----------- p ------- T- -------% (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5 546pii 1 .doc A7 B7 V. Description of the invention (outside) (Please read the precautions on the back before filling this page) The amount of oxygen (〇2) (internal) is set to 15cc / min. The amount of oxygen (02) (external) output from the external nozzle of the heating source 122 was set to 50 cc / min. In accordance with the setting conditions described above, the heating source 122 heats the glass rod 106. After the heating source 122 moves 15 mm, the process moves to the next step. Next, in the second extension process for pulling out the tail end (S176), when the moving distance of the tail support base 116 is increased from 30 mm to 55 mm, the moving distance of the heating source 122 is increased from 15 mm to 25 mm. The amount of hydrogen gas (H2) used to heat the source 122 was set to 130CC / min. The amount of oxygen (02) (internal) output from the internal nozzle of the heating source 122 was set to 15 cc / min. The number of external nozzles from the heating source 122, the number of oxygen heat (0) (external) from the car head, was set to 50 cc / min. In accordance with the setting conditions described above, the heating source 122 heats the glass rod 106. The tail support platform 116 extends the slope pole 106 at a moving speed of 10 mm / min. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs in the final melting process (S178), when the moving distance of the tail support 116 increases from 55mm to 100mm, the heating source 122 will not be used from The position is moved during the second extension process (S176) when the tail end is pulled out. Therefore, the moving distance is maintained at 25 mm. The amount of hydrogen (H2) used to heat the source 122 was set to 130 cc / min. The amount of oxygen (02) (internal) output from the internal nozzle of the heat source 122 was set to 30 cc / min. The amount of oxygen (02) (external) output from the external nozzle of the heating source 122 was set to 20 cc / min. In accordance with the setting conditions described above, the heating source 122 heats the glass rod 106. The tail support 116 melts the glass rod 106 at a moving speed of 120 mm / min. (Example 1) According to the setting shown in Fig. 43, a glass rod 106 having a diameter of 60 mm is pulled out at the tail end. A 200W AC servo motor is used as the tail support. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 517043

File: 5 546piii.doc A7 B7 Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of Invention (α) 275 drive motors. It is used as the rotary encoder of the tail support table driving encoder 273, which can detect the number of rotations of the tail support table driving motor 275. The rotation speed of the tail support motor 2 is controlled by the output of the tail support motor encoder 273. By measuring the output of the encoder 273 driven by the tail support, the movement distance of the tail support π 6 can be obtained. The time required for the tail-end pull-out process is 15 minutes. The shape of the region of the ongoing glass rod 106 which is pulled out by the tail end is formed into a conical shape. The length and diameter of this area are 61 mm and 60 mm, respectively. (Example 2) According to the setting shown in Figure 43, the rear end pulls out a glass rod 106 with a diameter of 60 mm. ◦ A straight line provided on the rear support 116 The encoder can detect the moving distance of the tail support 116. Based on the moving distance of the tail support platform 116 detected by the linear encoder, the amount of gas, the movement distance of the heating source 122 and the movement speed of the tail support platform 116 are controlled. The shape of the region of the glass rod 106 being pulled out by the trailing end forms a conical shape. The length and diameter of this area are 65mm and 60mm, respectively. Figure 44 shows the structure of the heating source 122 of the second extension device π 玻璃 of the glass rod. The bottom end of the outer tube 285 of the heating source 122 is closed. The outer tube 285 is connected to a flammable gas passage 312. This is a hydrogen channel where hydrogen is an example of a suitable flammable gas. The heating source 122 has a flammable gas flow rate control unit 314 and is placed in the flammable gas passage 312. All inner tubes 286 are connected to an oxygen channel 308 through a branching tool 316. The oxygen channel 308 is used as a channel for oxygen. The inert gas passage 296 is connected to the oxygen passage 308 via a connection element 302. The oxygen flow rate control unit 310 is installed between the connecting elements. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). Order / -------- line% · (Please read the back first Note? Please fill in this page for matters) 517043

File: 5546pii 1 .doc B7 V. Description of the invention (fp 302 and the entrance of the oxygen channel 308. (Please read the precautions on the back before filling this page) The inert gas channel 296 has a valve 300 and an inert gas flow rate control unit 298. The heating source 122 has a control element 304 for controlling the driving source 306 based on the flow rate data output from the oxygen flow rate control unit 310. The driving source 306 is connected to the valve 300. The flammable gas flow rate control unit 314 and oxygen The flow rate control unit 310 controls the flow rates of hydrogen H2 and oxygen 02 shown in Figs. 42 and 43. A valve such as an electronic valve or a solenoid valve can be used as the valve 300. A three-way pipe or a three-way valve Can be used to connect element 302. Figure 45 shows a plan view of the top of heating source I22. Each inner tube 286 has an internal diameter of 1 mm and an external diameter of 3 mm, which are inserted beyond the internal diameter of 30 mm Inside the tube 285. The inner tube 286 surrounds the center of the outer tube 285 and is placed in a plurality of columns of the same center circle. The inner tubes 286 are placed at regular intervals in each column. Adjacent columns are directed outward of the outer tube 285 To become every The highest density between the inner tubes 286. The inner tube 286 can be installed inside the outer tube 285 with a uniform density. Oxygen flows inside the oxygen outlet 288, which is inside the inner tube 286. Flammable gas flows inside the flammable gas outlet 290. It is the inside of the outer tube 285. The movement of the heating source 122 printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs will be explained below. Hydrogen flows from the hydrogen supply source (not shown in the figure) into the outer tube 285 through the flammable gas passage 312 Medium. Oxygen is distributed into the inner pipe 286 via the branch tool 316. Oxygen is supplied from an oxygen supply source (not shown in the figure) through the oxygen channel 308. Hydrogen and oxygen are mixed on the top of the outer pipe 285. This mixture is mixed by burning The gas can obtain flame 294. According to the processing purpose of glass rod 106, the amount of hydrogen and oxygen can be adjusted by using oxygen flow rate control unit 310 and flammable gas flow rate control unit 314. 59 This paper is in accordance with Chinese national standards (CNS ) A4 size (210 X 297 mm) 517043 A7

File: 5546pii 1 .doc V. Description of Invention (ίΐ) (Please read the notes on the back before filling this page) to get the best flame condition. At the same time, the signal indicates the flow rate of oxygen output from the oxygen flow rate control unit 310 to the control element 304. The linear velocity of oxygen is a few milliseconds, which can be guided by dividing the internal area of the inner tube 286 by the flow rate of oxygen. If the linear velocity of oxygen is 1.0 m / s or less, the control element 304 drives the driving source 306 and opens the valve 300. Next, nitrogen is an inert gas, and flows into the oxygen channel 308 at a linear velocity of 0.5 m / s, and is mixed with oxygen. When the flow rate of oxygen is changed, if the linear velocity of oxygen reaches 1.1 meters / second, the control element 304 drives the driving source 306 and closes the valve 300. When the flow rate of flammable gas and oxygen is reduced so that the flame becomes smaller, the local temperature region near the top of the internal flame moves from the top of the heating source 122. This is because the flame 294 diffuses and causes a mixture of inert gas and oxygen. Therefore, the surface temperature of the top portion of the heating source 122 is maintained below 400 ° C, so that the oxidation of the heating source 122 can be prevented. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. When the heating power needs to be increased, because the combustion temperature drops, if the inert gas is mixed, the valve 300 for inflow of inert gas will be closed. At the same time, because the flame 294 is large and lacks an increase in the flow rate of flammable gases and oxygen, the high temperature region of the flame 294 is no longer located on top of the heating source 122. Therefore, the surface temperature of the top of the heating source 122 is maintained below 400 degrees Celsius. By setting the different linear speeds of oxygen when the valve 300 is opened and closed, it is possible to prevent the bounce caused by opening and closing the valve 300. This needs to be set to l_〇m / sec or less, and set to 1.1 m / sec or more. It is desirable that, with the opening of the valve 300, the inert gas has an inflow volume with a linear velocity between 0.5 m / s and 2 m / s. The linear speed of the inert gas can be adjusted by applying the paper size to the Chinese National Standard (CNS) A4 (210 X 297 mm) 517043

File: 5546piil.doc A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (π) The internal area of the oxygen outlet 288 of the inner tube 286 is divided by the flow rate of the inert gas. If the linear velocity is 0.5 m / s or less, it is difficult to control the temperature of the top of the potential application source 122. On the other hand, if the linear velocity of the inert gas is 2.0 m / s or more, the temperature of the flame is reduced due to incomplete combustion of hydrogen. If a heating source 122 is used to heat the glass rod 106 with flame 294, metal oxides will generally not be generated on top of the heating source 122. This is because the surface temperature on the top of the heating source 122 is maintained at 400 degrees Celsius or lower, so that metal oxides are not added to the glass rod 106, and a high-quality glass rod 106 can be manufactured. A glass rod 106 having an average diameter of 65 mm is extended by the second extension device Π1 of the glass rod, wherein the second extension device 111 of the glass rod has a heating source 122 for controlling the flow rate of the inert gas. The ratio of the number of the glass rods 106 having an external substance such as a metal oxide to the entire number of the processed glass rods 106 was 0.2%. In comparison, when the glass rod 106 is always extended via the shut-off valve 300, the ratio of the number of glass rods 106 having foreign substances such as metal oxides to the total number of processed glass rods 106 becomes a high number. Fig. 46 is a graph showing the relationship between the linear velocity of oxygen and the top temperature of the heating source I22. The events shown here are always mixing oxygen and nitrogen with a linear velocity of 0.5 m / s, and not mixing oxygen and nitrogen. When nitrogen is mixed, the top temperature of the heating source 122 does not exceed 400 degrees Celsius. When nitrogen is not mixed, the temperature in this region reaches 400 ° C to 700 ° C, where the linear velocity of oxygen is lm / sec or less. Therefore, when the linear velocity of oxygen is Ini / second or more, the surface temperature of the heating source 122 can be controlled by mixing oxygen and nitrogen. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -------------------- Order --------- Γ1Γ (Please read the notes on the back before filling this page) A7 517043

File: 5546pii 1 .doc ___ B7 _ 5. Description of the invention (j ^) Figure 47 shows the shape of the tip of the preform 107, and its diameter is reduced and melted during the tail end pull-out process (SI%). . D represents the diameter of the preform 107. 〇 represents the position where the diameter of the preform 107 starts to be reduced. p represents a position where the diameter D of the preform 107 is reduced to 1% or below the original diameter. The preform 107 has a tapered shape, and its two ends can be represented by the equation i / 3dsl $ 3D. Here, L represents a length between the position 0 and the position p. The pull-out time to reach the stable state is the time from setting the preform 107 on the preform pull-out device 500 until the diameter of the optical fiber and the pull-out speed reach the prescribed value. The initial shape of 〇7 affects the time it takes to reach the steady state. This effect becomes larger, as the diameter of the preform 107 becomes larger. Then, it takes longer to pull out to reach a stable state. The preform 107 having the shape of the equation 1 / 3D ^ L $ 3D can reduce the time taken for drawing to reach a stable state. If L < 1 / 3D, as the drip time of the tip of the preform 107 becomes longer, the time taken for the diameter of the optical fiber and the pull-out speed to reach the specified value increases. If L > 1 / 3D, the dripping time of the tip end of the preform 107 can be reduced, but it takes a long time for the tapered shape of the preform 107 to become a drawn-out stable shape. Then, it takes longer for the diameter of the optical fiber and the drawing speed to reach a predetermined threshold. Therefore, it is preferable to make the tapered shape of the preform 107 like l = D. In the case where a part of the preform 107 is heated by flame to melt the preform 107, the remaining deformation is maintained at both ends of the tapered portion of the preform 107. If the remaining deformation of the tapered portion is large here, when a strong impact force is supplied to the preform 107, cracks may be generated on both ends of the preform 107. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) --------- 1T -------- -Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546pii 1 .doc A7 B7 V. Description of the invention (eg) A thermal impact between the prefabricated part 107 and the virtual rod can also cause cracks on both ends of the prefabricated part 107. The amount of deformation at both ends of the preform 107 is preferably 40 kgf / cm2 or less. By controlling the remaining amount of deformation of the preform 107 to 40 kgf / cm2 or less, it is possible to prevent cracking on the preform 107. (Example) A preform 107 having a diameter of 30 mm is pulled out. The length L is set to 30 mm. The deformation amount of the gradually deformed part of the preform 107 is maintained at 40 kgf / cm2 'so that no cracking occurs during the connection between the preform 107 and the virtual rod. When the set diameter of the fiber is 125 // m and the pull-out speed is 100 mm / min, the time it takes to pull out to reach a stable state is 20 minutes. The time from the setting of the preform 107 on the preform pull-out device 500 to the tip of the preform 107 dripping was 10 minutes. It takes 10 minutes for the diameter of the optical fiber and the pull-out speed to reach a predetermined threshold. (Comparative Example 1) A preform 107 having a diameter of 30 mm was pulled out. The length L is set to 5 mm. Keep the deformation amount of the gradually deformed part of the preform 107 at 40kgf / cm2, so that no cracking will occur during the connection of the preform 107 with the virtual rod. When the set diameter of the optical fiber is 125 // m and the pull-out speed is 100 mm / min, the time it takes to pull out to reach a stable state is 50 minutes. The time from the setting of the preform 107 on the preform pull-out device 500 to the dripping of the tip of the preform 107 is 20 minutes. It takes 30 minutes for the diameter of the optical fiber and the pull-out speed to reach a predetermined threshold. (Comparative Example 2) A preform 107 having a diameter of 30 mm was pulled out. The length L is set to the size of this paper. It is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ------------------ ^ -Order_ " --- ----- line (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Employee Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

File: 5546pii 1 .doc Magic B7 5. Description of the invention (100mm). Keep the deformation of the gradually deformed part of the preform 107 at 40kgf / cm2, so that no cracking will occur during the connection between the preform 107 and the virtual rod. When the set diameter of the optical fiber is 125 // m and the pull-out speed is 100mm / min, the time it takes to pull out to reach a stable state is 40 minutes. From the setting of the preform 107 on the preform pull-out device 500 to the prefabrication The drop time of the tip of the piece 107 is 10 minutes. It takes 30 minutes for the diameter of the optical fiber and the pull-out speed to reach the specified frame. (Comparative Example 3) A preform 107 having a diameter of 30 mm is pulled out. Length L Set it to 30mm. Keep the amount of deformation of the gradually deformed part of the preform 107 at 60kgf / cm2. Since cracks occur during the connection between the preform 107 and the virtual rod, the preform 107 cannot be pulled out. As described above, by making The shape of the tip of the preform 107 is 1 / 3D $ L $ 3D, which can reduce the time required to pull out the preform 107 to an optical fiber. Figure 48 shows another shape of the tip of the preform 107, and the tail end is Extended. Preform 107 shown in Figure 48 A flame forms a melting portion 332 at one end, and a mechanically cut cutting surface 334 is formed at the other end thereof. The melting portion 332 shown in Fig. 48 (a) is rapidly melted by the flame. As shown in Fig. 48 (b) The melting portion 332 shown is gradually melted, and the diameter is reduced to form a tapered portion 336. A thin portion 338 is provided on the tip of the melting portion 332 as shown in Fig. 48 (c). When pulled out When the preform 107 having the tapered portion 336 is shown in FIG. 48 (b), because the diameter of the melting portion 332 is small, it takes a short time to drip the tip of the preform 107, and the preform 107 The quantity of the paper being dropped is in accordance with China National Standard (CNS) A4 (210 X 297 mm) (please read the precautions on the reverse side before filling out this page) — — — — ——— Order--I- ----- 517043

File: 5546piil.doc A7 B7 Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (5) The invention description (k) is also small. From time to time, the dripping time of the tip of the preform 107 can be reduced to 1/3 or less of the time required for the traditional shape of the preform 107. The material loss caused by the dripping material through the preform 107 can be limited to a small amount of thin part 33 8. It is desirable that the shape of the thin portion 338 accounts for 0.1 to 15% of the weight of the melting portion 332. If the weight of the thin portion 338 is less than 0.1% of the weight of the melting portion 332, the effect produced by providing the thin portion 338 cannot be obtained. On the other hand, if the weight of the thin portion 338 is greater than 15% of the weight of the melting portion 332, the dripping of the tip of the preform 107 takes longer, and the loss of the preform 107 increases during the pull-out. It is desirable that the diameter of the thin portion 338 be between 1/2 and 1/10 of the diameter of the main body of the preform 107. If the diameter of the thin portion 338 is within this range, the time required for dripping of the tip of the preform 107 in the early drawing-out stage can be shortened. If the length of the thin portion 338 is about 1 to 5 times this diameter, the loss of the preform can be limited to a small amount. Fig. 49 shows a damage map of the preform 107 before the surface treatment of the preform 107 in the surface treatment process (S168) of Fig. 26. The preform 107 extended by the second extension device 111 of the glass rod is etched by hydrofluoric acid as a surface treatment. The chemical cutting of the preform 107 is cladding so that the preform 107 has the thickness of the central portion of the metal coating in a prescribed proportion. Hydrofluoric acid etching is a process that breaks down the binding force between silicon and oxygen in glass. Hydrofluoric acid etching treatment is performed at a speed of about 8mm per hour. The size of the paper is chemically cut. The paper size applies to CNS A4 specifications. ---------------- --- ^ --------- (Please read the phonetic on the back? Matters before filling out this page) Printed by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 517043

File: 5 546pii 1 -doc B7 V. Description of the invention) Cut the surface of the preform 107. However, if there is a crack or concave surface on the surface of the preform 107 ', the place with the crack or concave surface will be additionally cut to form a larger concave surface than the concave surface on the other part of the preform 107. The concave surface caused by the hydrofluoric acid etching process is called a hydrogen fluoride concave surface. During the drawing of the preform 107 into an optical fiber, this hydrogen fluoride concave surface is the cause of the fiber splitting. The honing process is performed before the treatment of hydrofluoric acid etching to remove the cracks and concave surfaces on the preform 107, and a preform 107 having no concave surface of hydrogen fluoride on its surface can be obtained. In this method, the preform 107 is flame-honed at the temperature of the deformation point of the preform 107 described above. During flame honing, the preform 107 is flame honed so that its uneven surface will be in the range of 0.3 mm. The flame honing of the preform 107 before etching the preform 107 with hydrofluoric acid can prevent the generation of a concave surface of hydrogen fluoride. This is possible because the amount of deformation in the preform 107 can be reduced and a smooth surface without cracks can be obtained. Not only is flame honing suitable, but mechanical honing can also be used to hoist the preform 107. Fig. 51 shows the number of hydrogen fluoride concaves produced on the preform 107 of the counting example and the comparative example by visual inspection. Fig. 52 shows the uneven surface of the preform 107 after the hydrofluoric acid etching treatment of the example and the comparative example. First, the preform 107a and another preform 107b are placed on a supporting table, wherein the preform 107b has the same shape as the preform 107a. Next, one end of the preform 107a is lifted to a height of 10 cm, while the other end is maintained on a supporting table. Then, 10% of the preform lifted at one end is lowered onto the preform 107b, so that the preform 107a has a crack. Each multiple paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 public love) --------------- Order --------- line (Please read first Note on the back, please fill out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5 5 46piil.doc B7 5. Description of the invention (ty) The prefabricated parts 107a were damaged in 3 places at a distance of 20 cm by the same method as described above. In the pretreatment process 2 shown in Figs. 51 and 52, the preform 107a is lifted to a height of 20 cm, and another damage procedure of the preform 107a is the same as that of the pretreatment process 1. In the examples shown in Figs. 51 and 52, each preform 107a is processed through a pretreatment process 1 and a pretreatment process 2. Next, each of the preforms 107a was honed with a burner flame, wherein the burner was supplied with 250 ml / min of hydrogen and 145 ml / min of oxygen. Each flame-honed preform 107a was treated with hydrofluoric acid etching at room temperature. The thickness of the material etched from the outer diameter of the preform 107 is one of four steps of 0.2 mm, 1.2 mm, 2.2 mm, and 3.2 mm. Each four-step etching thickness is etched into 10 preforms 107a by hydrofluoric acid. Fig. 50 shows a schematic view of the preform 107a, which is processed through the examples shown in Figs. 51 and 52 by hydrofluoric acid starvation. By measuring the diameter difference between the diameters of the marking point X and the marking point, an uneven surface of the preform 107a can be obtained. The marked point X is a point where the preform 107b was damaged through contact. The marking point 0 is a point away from the marking point X10 mm, which is not damaged by contacting the preform 107b. The average diameter of the diameters of the three marked points X is used as the diameter of each preform 107a. In the comparative example shown in Fig. 51 and Fig. 52, each of the preforms 107 is processed through the pretreatment process 1 and the pretreatment process 2 is etched with a hydrofluoric acid without flame honing. The number of concave surfaces of hydrogen fluoride was evaluated by visual inspection, and the uneven surface was measured by the same method as the example. As shown in FIGS. 52 and 53, the uneven surface of the pretreatment process 2 is larger than the uneven surface of the pretreatment process 1. This is because during the damage process, the pretreatment process 2 is used. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) ---------------- --- Order --------- line (Please read the precautions on the back before filling out this page) Printed by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 517043

Fne: 5 546pmd〇C A7 B7 V. Description of the invention (β)

This is higher than the pretreatment process 1. In addition, the number of hydrogen fluoride concaves generated by the hydrofluoric acid etching through the pretreatment process 2 is larger than the number of hydrogen fluoride concaves in the pretreatment process 1. I The larger the amount of etching, the larger the uneven surface of the preform 107. Also, the larger the saturation amount, the larger the number of hydrogen fluoride concave surfaces generated by the hydrofluoric acid etching. The uneven surface of the preform 107a in the flame-honed example is lower than the uneven surface of the preform 107a in the comparative example that is not flame-honed. The number of hydrogen fluoride concaves generated in the example is smaller than the number of hydrogen fluoride concaves generated in the comparative example, as shown in FIG. Therefore, 'the flame honing of the preform 107a before the preform 107a is etched with hydrofluoric acid can reduce the number of hydrogen fluoride concave surfaces in the preform 107a and the uneven surface of the preform 107. FIG. 53 illustrates another shape of the surface-treated preform 107. The preform 107 has a handle 340. The handle 340 is made of silica glass, and is mounted on the cut surface 334 of the surface-treated preform 107 as shown in FIG. 48 (c) through welding or mechanical processing. When the preform 107 is pulled out into an optical fiber, the preform 107 having the handle 340 can be immediately mounted on the preform pulling device 500. The diameter of the handle 340 mounted on the cutting surface 334 may be smaller than the diameter of the preform 107, as shown in Fig. 53 (b). FIG. 54 is a schematic diagram of an ultrasonic washing device 404 for washing a heating source. The ultrasonic washing device 404 includes an ultrasonic oscillator 396. A cleaning solution 398 is contained inside the ultrasonic cleaning device 404. Rinse solution 398 contains 10% hydrofluoric acid and 3% nitric acid. Hydrofluoric acid is used to dissolve metal oxides generated on the surfaces of the outer tube 285 and the inner tube 286 of the heating source 122. If the paper size of this paper applies Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) --------- Order ------ --- Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546piild〇c Magic B7 5. Description of the invention (") The tube 285 and the inner tube 286 are made of stainless steel, so the oxidation on the surface of the outer tube 285 and the inner tube 286 will not easily occur. This is because of iron Chromium and nickel are contained in the stainless steel 'and a non-chemical film is formed on the surface of the stainless steel to prevent the influence of nitric acid' so it can protect its surface. 淸 Washing liquid 398 may contain a soluble organic solvent. Soluble organic Examples of solvents are alcohol, acetonitrile, and tetrahydrofuran. The heating source 122 has a plurality of inner tubes 286, which have an inner diameter of 1 mm and an outer diameter of 3 mm. The inner tube is 286 Inside the outer tube 285, the outer tube 285 has an internal diameter of 30 mm. Hydrogen flows into the outer tube 285 and oxygen flows into the inner tube 286. The outer tube 285 is connected to a hydrogen inlet tube 392, and all the inner tubes 286 are connected to one Oxygen inlet tube 394. When the glass rod 106 is heated by the flame of the heating source 122, the temperature at the top of the heating source 122 increases to a high temperature between 400 ° C and 700 ° C. Therefore, Metal oxides will be generated on the top surface of the heating source 122. If the heating source is used for a long time, the metal oxides will gradually be removed and become free-flowing dust particles. The metal oxide dust particles or external factors are polluted For example, the glass dust particles attached to the heating source 122 can be removed during the heat treatment of the glass rod 106. These dust particles can be attached to the surface of the glass rod 106, so the surface layer of the glass rod 106 needs to be honed. If glass The rod 106 is honed, and the ratio of the coating of the glass rod 106 to the diameter of the center portion will change. As a result, the optical transmission characteristics of the optical fiber manufactured from the glass rod 106 will be deteriorated. Therefore, the heating source 122 is washed through It can remove the pollution of external factors and the metal oxides attached to the heating source 122 from the heating source 122. This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before filling (This page) --------- Order --------- Line · Printed by the Consumer Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043

File: 5546pii 1 .doc ^ B7 V. Description of the Invention (q) In order to wash the heating source 122 with the ultrasonic cleaning device 404, first, the hydrogen inlet pipe 392 and the oxygen inlet pipe 394 will be opened to the outside. Next, the flame nozzle 390 is lowered directly, and the heating source 122 is immersed in the washing liquid 398. Any air remaining in the outer pipe 285 and the inner pipe 286 is released through the hydrogen gas inlet pipe 392 and the oxygen gas inlet pipe 394. Subsequently, the outer tube 285 and the inner tube 286 are immersed and immersed in the lotion 398 to the top of the water surface. Next, the ultrasonic washing device 404 uses the ultrasonic oscillator 396 to oscillate the ultrasonic waves to wash the heating source 122. Ultrasonic vibration frequency is 10kHz to 100kHz. The heating source 122 is washed by the ultrasonic washing device 404. Metal oxides are present around the stainless steel flame nozzle 390 of the heating source 122 used to heat the glass rod. The area around the flame nozzle 390 of the heating source 122 is immersed in a tritium lotion 398. The ultrasonic oscillator 396 having an output of 500 W washes the heating source 122 by ultrasonic vibration of a vibration frequency of 10 kHz to 100 kHz for 30 minutes. Next, the heating source 122 is removed from the ultrasonic washing device 404, and any washing liquid 398 remaining on the surface of the heating source 122 is washed with pure water. The heat source 122 is then dried. The tops of the outer pipe 285 and the inner pipe 286 were checked, and no metal oxide and external factors were found to be polluted in the outer pipe 285 and the inner pipe 286. The surface of the glass rod 106 is heat-treated by the rinsed heating source 122. The ratio of the number of the glass rods 106 contaminated with external factors to the total number of the treated glass rods 106 was 6%. The surface of the glass rod 106 was heat-treated by a non-washed heating source 122 for comparison. In this case, the number of glass rods 106 attached with external factors pollution is greater than the total number of glass rods 106 that have been heat-treated. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). ) ------------------ ^ — Order --------- Line (Please read the notes on the back before filling this page) Intellectual Property Bureau of the Ministry of Economic Affairs Printed by Employee Consumer Cooperative 517043

File: 5546piil.doc Magic B7 V. Description of Invention (Saki) Example is 15%. This ratio is larger than the ratio obtained through the heating source 122 which has been washed. As described above, the metal oxide generated on the top of the heating source 122 and the contamination by external factors can be removed by cleaning the heating source 122 via the ultrasonic cleaning device 404. The glass rod 106 is heated by the heating source 122 washed by the ultrasonic washing device 404, and a high-quality preform 107 can be obtained because less external factors are attached to the glass rod 106. Fig. 55 is a structural diagram of a preform pulling device 500 for pulling out the preform 107 into an optical fiber. The preform pull-out device 500 includes a clip 346 to support the virtual rod 342 to be coupled to the preform 107; a heating device 348 to heat the preform 107; and a movable support frame 344 to supply the preform 107 to In the heating device 348; a diameter measuring device 352 is used to measure the diameter of the optical fiber 350 drawn from the preform 107; a first coating device 354 is used to perform the first coating process of the optical fiber 350; A first curing device 356 is used to directly coat the first optical fiber through an ultraviolet bridge; a second coating device is used to coat the optical fiber 35 to a second time; a second correction device 360 is used to pass a The second coated optical fiber is corrected by ultraviolet rays; and a traction machine 362 is used to wind the optical fiber 350 °. In order to use the preform drawing device 500 to pull out the preform 107 into an optical fiber 35, first, the virtual rod 342 is spliced. To the preform 107 supported by the clip 3 仏 of the movable support frame 344. The start of the preform 107 is then set to a prescribed position of the heating device 348, and the preform 107 is then heated. When the tip of the preform 107 is softened and dripped, the tip of the dripped preform 107 is grasped and pulled out through the diameter measuring device 352. When the diameter of the optical fiber 350 reaches the desired diameter, the optical fiber 35 passes through this paper and applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -------------- ----- Order --------- line (please read the precautions on the back before filling in this page) 517043 F 丨 丨 e: 5 546piiid〇 5. Description of the invention (（φ first coating device 3Μ It is first coated with resin. This first coated optical fiber 350 is then passed through a first correcting device 356. The optical fiber 35 is then second coated through a second coating device 358, and through a second correcting device 356 Be corrected. When the pull-out diameter and speed of the optical fiber 350 reach a specified threshold, the optical fiber 350 will be wound on a spool through the traction machine 3M, not shown in the figure, through the glass as described above The first base material pull-out device 900 and the glass rod second extension device 111 can produce high-quality and small-diameter preforms 107. Therefore, the first base material pull-out device 900 and the glass rod second The extension device 111 and the use of the preform pull-out device 500 to manufacture the pull-out preform 107 can produce high quality and small diameter change Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and decorations without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the attached patent application. ------------------- Order --------- line (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

Claims (1)

Patent Scope Amendment Date of amendment: July 1, 1991! Members are kindly requested to indicate whether there is any change in the material mentioned in narlM3 in ^ year. Whether the substance of the change is allowed to be amended? Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by the Consumer Cooperative of Consumers. 6. Scope of patent application 1. One kind of manufacturing An optical fiber method / wherein the glass rod, which is a parent material of the optical fiber, is subjected to multiple extension steps, the method includes: setting a heating condition for adding one glassy #, and setting the glass in each extension step The extension speed of the rod, the heating condition and the setting of the extension speed are based on each corresponding progress time of the extension step; according to the heating condition and the extension speed set by performing the extension step, the glass rod is heated and extended to Generating a preform; and drawing the preform into a similar thin wire by additionally heating the preform to produce an optical fiber. '2. The method as described in item 1 of the scope of patent application, wherein: the heating process and the extension process include a tail end drawing process to reduce a diameter of one end of the glass rod; and the tail end drawing process According to the progress time of the tail end drawing process, the tail end of the glass rod is drawn out with the heating and extending process. 3. The method as described in item 1 of the scope of patent application, wherein the setting situation is to set a position for heating one of the burners of the glass rod and the supply of the burner according to the progress time of the extension process. An amount of gas is used as the heating condition. 73 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) Γ 517043 A8 5546pir2 / 013 B8 is the amendment to the scope of patent No. 88119203 § Date of amendment: July II, 1991 6. Application for patent scope 4. The method described in item 1 of the scope of patent application, where the setting situation According to the progress time of the extension process, a moving speed for supporting a clip of the glass rod is set as the extension speed. 5. The method as described in item 1 of the scope of patent application, wherein the diameter of one end of the glass rod pulled out by the tail end is reduced, and the setting situation is: according to a plurality of directions along the axis of the glass rod A diameter of one of the positions, and a change in the length of the glass rod along the axis of the glass rod through the extension process, detecting the factory position of the area where one end of the glass rod is pulled out by the end; And, setting a honing range of the glass rod through a flame honing according to the position of the tail end drawing area, and setting a heating power condition of the flame according to a diameter of the tail drawing area, And the heating and extension process hones the honing range of the glass rod through the flame of the heating power condition. 6. The method described in item 1 of the scope of the patent application should be: The heating and extension process has: Preheating the glass rod until the specified area of the glass rod is softened; and (Please read the precautions on the back before (Fill in this page)-5J ί. Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is printed to the Chinese National Standard (CNS) A4 (210 X 297 mm) Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 517043 5546pir2 / 013 B8 is the amendment to the scope of patent No. 88119203. The date of amendment: July 11, 1991. 6. The scope of application for patent application Λ end of the prescribed area is used to reduce the diameter of one of the prescribed areas and used for additional heating. With the extension of the prescribed area, make one of the glass poles uphill. 7. The method as described in item 6 of the scope of patent application, wherein the tail end drawing process further includes a second heating process for heating an area via a flame, which is mostly directed toward a center of the prescribed area. In the direction of a middle surface of the glass rod, the concentration of the flame is less than the concentration of the flame in the pre-heating process. 8. A method of manufacturing a prefabricated part, in which the invitation of the glass fiber material of the optical fiber is performed as a second extension, including :, setting a heating condition for heating a glass rod, and setting each extension, In the step_, the extension speed of the glass rod, the heating condition and the extension speed are set according to each corresponding time of the extension step; according to the heating condition and the extension speed set in the execution of the extension step, heating and extension The glass rod is used to produce a preform. 9. The method according to item 8 of the scope of patent application, wherein: the heating process and the extension process include a tail end drawing process to reduce a diameter of one end of the glass rod; and the tail end drawing process basis The time of the tail end pull-out process, with 75 (Please read the precautions on the back before filling out this page)-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 517043 5546pir2 / 013 Revised A8 B8 C8 D8 for the scope of patent No. 88119203 Date of amendment: July 1, 1991 Republic of China VI. The scope of patent application is heating and extending the end of the glass rod. (Please read the precautions on the back before filling this page) ίο. As described in the & patent application method, wherein the diameter of one end of the glass rod pulled out by the tail end is reduced, and the setting situation Is: based on the diameter of one of the plurality of positions along the axis of the glass rod, and a change in the length of the glass rod along the axis of the glass rod through the extension process, detecting the A position of the tail end pull-out area of the glass rod; and, according to the position of the tail end pull-out area, setting a honing range of the glass rod through a flame honing, and pulling out according to the tail end A diameter of a region, a heating power condition of the flame is set, and the heating range of the glass rod is honed through the flame during the heating and elongation process. 11. The method described in item (2) of the patent application section, wherein: the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints and preheats the glass rod until one of the specified areas of the glass rod is softened; and the end is pulled out of the regulation Area to reduce the diameter of one of the prescribed areas, and to make one of the glass rods by additional heating and extension of the prescribed area. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 517043 5546pir2 / 013 B8 is the amendment to the scope of patent No. 3 just touched. The date of amendment: July 丨 / 91, Republic of China on 6th, please request the scope of patent. 12. The method as described in item 11 of the scope of patent application, wherein the tail-end drawing-out process further includes a second heating process for heating an area through a flame, which is mostly directed toward a center of the prescribed area. In the direction of a middle surface of the glass rod, the concentration of the flame is less than the concentration of the flame in the pre-heating process. U · —A device for manufacturing a preform, which is a parent material of an optical fiber, including: a heating source for heating a glass rod, which is a parent material of the preform; and, an extension unit for Extending the glass rod; a measuring device for measuring a plurality of progress times of an extension process of the glass rod; and a control unit for measuring the plurality of extension processes measured by the measuring device The progress time controls the heating condition of one of the heating sources and the extension speed of one of the extension units. 77 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the notes on the back before filling out this page) • Customized • Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs