Optical fiber sensor structure with uv glue curing and method of manufacturing the same

Abstract

The present application discloses a UV glue-cured optical fiber sensor structure and a manufacturing method thereof, which aims to optimize the manufacturing process of conventional optical fiber sensor structures and reduce costs while maintaining detection accuracy. The UV glue-cured optical fiber sensor structure comprises a main mold with a curing lamp set, a silica gel mold placed in the main mold, and the silica gel mold has a molding groove. The molding groove is filled with an equal amount of UV glue, and a fiber wire is placed in the molding groove at a depth of 2 millimeters. The UV glue is irradiated by the curing lamp set at a certain time to form a collimator, and the front end of the collimator is bonded and assembled with a metal joint. The present application uses high-transmittance UV glue and simple mold design to maintain the fine detection function of the collimator product, reduce the number of parts and the cumbersome assembly steps, and finally effectively reduce the cost.

Description

Technical Field

[0001] This invention relates to a fiber optic sensor structure with UV adhesive curing and a method for manufacturing the same. Background Technology

[0002] Most commercially available fiber optic sensors today combine the advantages of fiber optic transmission and optical focusing due to their built-in lens focusing design, resulting in high sensitivity and accuracy. Since focusing also significantly extends the detection distance, they are widely used in industrial inspection, medical diagnostics and other fields.

[0003] However, in comparison, the manufacturing and installation process requires very precise alignment mechanisms and techniques. Since the lens is built-in, when used in harsh environments, it is also necessary to select suitable lens materials or take additional protective measures, which leads to higher costs, an increased number of parts, or overly complicated steps.

[0004] Therefore, fiber optic sensors urgently need a manufacturing method that can effectively simplify the number of manufacturing parts and cumbersome steps, thereby reducing manufacturing costs, while maintaining detection accuracy and increasing production capacity. Summary of the Invention

[0005] One embodiment of the present invention provides a fiber optic sensor structure with UV adhesive curing. It mainly utilizes UV adhesive and silicone mold to place the fiber optic cable inside the UV adhesive and then use a curing lamp to illuminate and shape it, and then bond it with a metal connector. This can significantly reduce the number of parts and simplify the previously cumbersome manufacturing process, thereby reducing manufacturing costs while maintaining the original precision sensing function.

[0006] The present invention has a UV-cured fiber optic sensor structure, comprising: a main mold having a curing lamp assembly; a silicone module having a molding groove is fitted into the main mold; an equal amount of UV adhesive is injected into the molding groove; an optical fiber is placed in the molding groove at a depth of 2 mm; the UV adhesive is periodically irradiated with the curing lamp assembly to form a collimating lens; and the front end of the collimating lens is then bonded and assembled with a metal connector.

[0007] Optionally, it also includes: a shaped surface formed at the front end of the collimating lens, the shaped surface having light-transmitting characteristics and being able to correspond to the design changes within the shaped groove.

[0008] Optionally, the curing lamp can be timed to irradiate for up to 5 seconds.

[0009] Optionally, the silicone mold has a light-transmitting feature with a light transmittance of 75%.

[0010] Optionally, the UV adhesive has a light transmittance of 95%.

[0011] This invention relates to a UV-curable fiber optic sensor structure and its manufacturing method, comprising: first, positioning a main mold equipped with a curing lamp assembly in an appropriate position; then, fitting a silicone mold with 75% light transmittance into the main mold; the silicone mold also having a molding groove; continuously injecting equal amounts of UV adhesive with 95% light transmittance into the molding groove; then, placing an optical fiber cable with a clamp into the molding groove at a depth of 2 mm; since the optical fiber cable is encased in the UV adhesive, after being irradiated by the curing lamp assembly at 5-second intervals, a collimating lens is formed; the front end of this collimating lens forms a shape surface with light transmittance; and then bonding and assembling the front end of the collimating lens with a metal connector.

[0012] The beneficial effects of this invention are as follows:

[0013] This invention utilizes UV adhesive in conjunction with a curing lamp to coat optical fibers, forming a collimating lens with high light transmittance. This is then combined with a metal connector for bonding, thereby simplifying the existing number of parts and the cumbersome manufacturing process.

[0014] This invention utilizes UV adhesive and a silicone mold to encapsulate optical fiber wires within the UV adhesive. The process involves curing the fiber with a curing lamp and bonding it with a metal connector. This significantly reduces the number of parts and simplifies the previously cumbersome manufacturing process, lowering production costs while maintaining the original precision sensing function. Attached Figure Description

[0015] To provide a better understanding of the technical features and effects of the present invention, preferred embodiments are illustrated below along with detailed descriptions.

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 The following is a flowchart of the implementation steps of the present invention (I).

[0018] Figure 3 This is a flowchart (II) of the implementation steps of the present invention.

[0019] Figure 4 Based on the present invention Figure 2 and Figure 3 A three-dimensional diagram illustrating the implementation steps.

[0020] Figure 5 The following is a flowchart (III) of the implementation steps of the present invention.

[0021] Figure 6 The following is a flowchart (IV) of the implementation steps of the present invention.

[0022] Figure 7 Based on the present invention Figure 5 and Figure 6 A three-dimensional diagram illustrating the implementation steps.

[0023] Figure 8 This is a flowchart of the manufacturing method of the present invention.

[0024] The diagram is marked as follows:

[0025] 10. Main mold

[0026] 11. Curing lamp assembly

[0027] 20. Silicone mold

[0028] 21. ... Molding groove

[0029] 30. UV adhesive

[0030] 31. Collimating lens

[0031] 32. ... Surface Design

[0032] 40. Fiber optic cables

[0033] 50. Metal connector Detailed Implementation

[0034] Generally, according to the present invention, this preferred feasible embodiment, in conjunction with the accompanying drawings, Figures 1 to 7 The detailed description enhances the understanding of the present invention, which is a fiber optic sensor structure with UV adhesive curing, comprising: a main mold 10, and a curing lamp group 11. The curing lamp group 11 can also be disassembled or externally connected according to actual on-site operation requirements, and is not limited thereto.

[0035] A silicone mold 20 is fitted inside the main mold 10, and the silicone mold 20 has a molding groove 21 and a light transmittance of 75%.

[0036] The main components of UV adhesive 30 are oligomers, reactive monomers, and photoinitiators. The oligomers can usually be selected from epoxy acrylates, urethane acrylates, or polyester acrylates. The reactive monomers are added to the oligomers to reduce viscosity and increase ease of use. The photoinitiator is used to absorb the energy of ultraviolet light and form free radicals or cationic groups, so that the monomers and oligomers undergo a chain polymerization reaction, thereby allowing the UV adhesive (30) to cure. The UV adhesive (30) is also known as UV curing adhesive.

[0037] After an equal amount of UV adhesive 30 is injected into the molding groove 21, an optical fiber 40 is positioned 2 mm deep inside the molding groove 21 using a fixture. When the UV adhesive 30 is irradiated with the curing lamp 11 for 5 seconds at a time to form a collimating lens 31, the transmittance of the UV adhesive 30 is 95%. This effectively improves the problem of light attenuation and replaces the existing focusing structure. It can also maintain calibration accuracy in mass production. The irradiation time of the curing lamp 11 is the optimal number of seconds proposed by calculating the curing rate based on the amount and area of ​​UV adhesive 30 used in the molding groove 21. The number of seconds can also be adjusted according to production needs and is not limited to this.

[0038] A shaped surface 32 is formed at the front end of the collimating lens 31. This shaped surface 32 has light-transmitting characteristics and can correspond to the design changes within the shaped groove 21, for example... Figures 2-7 The 32 shape indicated in the figure is a curved surface, and its corresponding part can also be changed to a rhombus, rectangle, square, circle, etc., or other shapes with light-concentrating effect through the 21 shape groove. Therefore, it is not limited to this. Finally, the front end of the collimating lens 31 is bonded and assembled with a metal connector 50.

[0039] The manufacturing process of the embodiments of the present invention is further described below. Please refer to the accompanying drawings for further details. Figure 8 The process includes: Step 1: First, a main mold 10 equipped with a curing lamp group 11 is positioned in an appropriate position, and then a silicone mold 20 with a light transmittance of 75% is placed in the main mold 10. The silicone mold 20 is also provided with a molding groove 21.

[0040] Step 2: After continuously injecting equal amounts of UV adhesive 30 with 95% light transmittance into the molding groove 21, place an optical fiber 40 with a clamp into the molding groove 21 at a depth of 2 mm.

[0041] Step 3: Since the optical fiber 40 is encased in the UV adhesive 30, the UV adhesive 30 is irradiated by the curing lamp group 11 at 5-second intervals to form a collimating lens 31. The front end of the collimating lens 31 forms a shape surface 32 with light transmission characteristics.

[0042] Step 4: Then, attach a metal connector 50 to the front end of the collimating lens 31 and assemble it by bonding.

[0043] In summary, the present invention provides a UV-cured fiber optic sensor structure and its manufacturing method. By using a UV adhesive 30 with 95% light transmittance and a silicone mold 20 with 75% light transmittance, the fiber optic cable 40 is placed inside the UV adhesive 30 and encapsulated. The collimating lens 31 is formed by continuous illumination through the curing lamp group 11. It is then further bonded together with a metal connector 50. This significantly reduces the number of parts and simplifies the previously cumbersome manufacturing process, thereby reducing manufacturing costs while maintaining the original precision sensing function.

Claims

1. A fiber optic sensor structure with UV adhesive curing, comprising: a main mold (10) having a curing lamp assembly (11); a silicone mold (20) fitted within the main mold (10), wherein the silicone mold (20) has a molding groove (21), characterized in that, An equal amount of UV adhesive (30) is injected into the molding groove (21). An optical fiber (40) is placed 2 mm deep inside the molding groove (21). The UV adhesive (30) is periodically irradiated with the curing lamp (11) to form a collimating lens (31). The front end of the collimating lens (31) is then bonded and assembled with a metal connector (50).

2. The optical fiber sensor structure with UV glue curing according to claim 1, wherein, It also includes: a shaped surface (32) formed at the front end of the collimating lens (31), the shaped surface (32) having light-transmitting characteristics and being able to correspond to the design changes within the shaped groove (21).

3. The optical fiber sensor structure with UV glue curing according to claim 1, wherein, The curing lamp assembly (11) is irradiated for a period of 5 seconds.

4. The optical fiber sensor structure with UV glue curing according to claim 1, wherein, The silicone mold (20) is light-transmitting, with a light transmittance of 75%.

5. The optical fiber sensor structure with UV glue curing according to claim 1, wherein, The UV adhesive (30) has a light transmittance of 95%.

6. A method of manufacturing a fiber optic sensor structure with UV glue curing, comprising the fiber optic sensor structure with UV glue curing according to any one of claims 1 to 5, characterized in that, include: Step 1: First, position a main mold (10) equipped with a curing lamp assembly (11) in an appropriate position, and then fit a silicone mold (20) with a light transmittance of 75% into the main mold (10). The silicone mold (20) also has a molding groove (21). Step 2: After continuously injecting equal amounts of UV glue (30) with a light transmittance of 95% into the molding groove (21), place an optical fiber (40) into the molding groove (21) with a clamp at a depth of 2 mm. Step 3: Since the optical fiber (40) is encased in the UV glue (30), after the UV glue (30) is irradiated by the curing lamp assembly (11) at a time of 5 seconds, a collimating lens (31) is formed. The front end of the collimating lens (31) forms a molding surface (32) with light transmittance characteristics. Step 4: Then, the front end of the collimating lens (31) is bonded and assembled with a metal connector (50).

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