TW201939081A - Collimated optical fiber provided with an optical fiber cable and an optical fiber splice - Google Patents

Abstract

This invention relates to a collimated optical fiber, which is provided with an optical fiber cable and an optical fiber splice. The optical fiber cable is matched to be penetrated in a proper position inside a protection assembly and is fixed. The optical fiber splice is provided with a through-hole allowing the optical fiber cable to be arranged. The optical fiber splice is connected with the protection assembly. A lens with a curved surface is matched to be arranged in the through-hole, so that a light beam transmitted by the optical fiber cable can be focused to generate a fixed angle. The aims of high-speed use and transmission loss reduction are achieved.

Description

Collimated fiber

This creation is about the technical field of optical fiber sensing. It is to set a lens with a different curved surface in a through hole inside the optical fiber connector, so that the optical fiber cable passes through the protective element to connect the optical fiber connector, and can quickly complete the refraction at the required angle. beam.

In automated machinery or automated production lines, a variety of sensors related to functions such as detection, mobile positioning, and good product screening can often be found to meet various purposes.

Among them, the photoelectric proximity sensor uses the signal feedback of the penetration, reflection, or shielding of the light beam, and then cooperates with the transmission line to connect to the mechanical control end or signal receiving end to calculate the relevant information of the sensing;

Please refer to Figure 7. Generally, the optical fiber wire (93) is equipped with a lens that can adjust the conduction direction of the detection beam (94), such as the detection head A (91) and the detection head B (92) in the figure. The lens will increase or decrease with the types of the detection platform (90) and the object to be measured (95). When the optical fiber wire (93) transmits the detection beam (94), the reflection angle is adjusted by the detection head A (91) and emitted to the object. When measuring the object (95), it can be seen that the range of the detection beam (94) will exceed the height of the object (95), and will be reflected to the position of the detection head B (92) through the side wall in the detection platform (90), resulting in The occurrence of a false trigger will limit the application range of the test, and the detection head A (91) will also be easily affected by external forces to cause shifts, which will cause transmission losses. In actual applications, additional costs will be required. Less time adjustment and inconvenient operation;

Therefore, through the practical application of the aforementioned conventional structure, it still has its shortcomings and deficiencies. In view of this, the creator of this case is based on many years of development experience in related industries and deliberately researches and integrates the aforementioned conventional structures. Developed a kind of parallel light fiber.

This creation is a kind of parallel optical fiber. The optical fiber cable is fitted in a fixed shape with the inside of the protective element to the appropriate position. The optical fiber connector with a through hole is used to pass the optical fiber cable through the through hole. The optical fiber connector is connected to the protection element to form an integrated body. A lens with a curved surface is also provided inside the through hole to focus the light beam transmitted through the optical fiber cable to generate a refracted light beam with a fixed angle.

The main purpose of this creation is that after the optical fiber connector and the optical fiber cable are connected together, the lens set in the optical fiber connector can make the light beam transmitted by the optical fiber cable pass through the curved surface inside the lens, thereby forming a predetermined angle of refraction. Beams to achieve fast use and reduce transmission loss.

Usually according to this creation, the best feasible embodiment, and the detailed description of the drawings 1 ~ 4, then increase the understanding of this creation; this creation is a parallel optical fiber, its structure includes: an optical fiber cable (10) After cooperating with a perforation in a protective element (20) to an appropriate length, the end of the optical fiber cable (10) and the protective element (20) are fitted into a fixed state. The protective element ( 20) is a plastic sheath;

An optical fiber connector (30) is provided with a through hole (31) inside, the through hole (31) can be used for one end of the optical fiber cable (10), and the optical fiber connector (30) can communicate with the protection element (20) The connection is integrated, and a lens (40) is arranged in the through hole (31). The lens (40) has a curved surface (41), which can be used for transmission of the optical fiber cable (10). Focusing a light beam (50) to generate a refracted light beam (51) at a fixed angle;

The aforementioned curved surface (41) is used for focusing in the lens (40), and the lens (40) is set in front of the through hole (31). This curved surface (41) is already designed in advance when the lens (40) is produced The path of the refracted light beam (51) when passing through it, so when the lens (40) is set inside the through hole (31), it is no longer necessary to adjust it in the manner of a conventional structure, and therefore it can no longer be affected by external forces to affect its transmission;

Please refer to figure 5 in the figure. When actually applied, an object distance (61) of 10 cm is set between an object to be measured (60) and the optical fiber connector (30) in the figure, but The object distance (61) is not limited to this. This distance is for the purpose of explaining the principle. It can be seen that the optical fiber cable (10) in the figure is focused and refracted by the curved surface (41) of the lens (40). ), Where the beam range A (52) is formed by a refraction angle of 18 degrees, and the beam range B (53) is formed by a refraction angle of 12 degrees. It can be seen that the formed angle is transmitted through the curved surface of the lens (40) ( 41) and can be adjusted.

Please refer to FIG. 6 again. If the optical fiber connector (30) is provided in the structure of the prior art, it can be seen that the range formed by the refracted light beam (51) can be further reduced, and more fine objects can be detected. Moreover, the refracted light beam (51) can be prevented from triggering other elements by mistake;

To sum up, the parallel light optical fiber of this creation can make the optical fiber cable through the lens (40) with a pre-designed curved surface (41) and the optical fiber connector (30) installed in the optical fiber connector (30). The light beam (50) transmitted by the line (10) passes through the curved surface (41) inside the lens (40) to form a refracted light beam (51) with a predetermined angle, thereby achieving the problems of rapid use and reduction of transmission loss.

(10) ‧‧‧Fiber optic cable

(20) ‧‧‧Protection element

(30) ‧‧‧Fiber Optic Connector

(31) ‧‧‧through hole

(40) ‧‧‧Lens

(41) ‧‧‧Surface

(50) ‧‧‧Beam

(51) ‧‧‧Refracted Beam

(52) ‧‧‧Beam range A

(53) ‧‧‧Beam range B

(60) ‧‧‧Object to be measured

(61) ‧‧‧Object distance

(90) ‧‧‧Testing Platform

(91) ‧‧‧Sensor A

(92) ‧‧‧Detector B

(93) ‧‧‧Fiber Optic Wire

(94) ‧‧‧Detection beam

(95) ‧‧‧Object to be tested

[Figure 1] This is a perspective view of this creation. [Figure 2] is an exploded view of this creation. [Figure 3] This is the A-A sectional view created in the first figure. [Figure 4] is a schematic diagram of the light path for this creation. [Figure 5] This is a schematic diagram of the range of light beams created by a fiber connector reflected by a curved surface. [Figure 6] This is a schematic diagram of the creation and the prior art in detection. [Figure 7] is a schematic diagram of the prior art.

Claims (3)

A collimated optical fiber includes: an optical fiber cable that fits through a protective element to a proper position and fits into a fixed shape; an optical fiber connector with a through hole inside, which can be used for the optical fiber cable; The optical fiber connector can be connected to the protection element. A lens is matchedly disposed in the through hole. The lens has a curved surface, and a light beam transmitted by the optical fiber cable can be focused to generate a refracted light beam with a fixed angle. According to the collimated optical fiber described in item 1 of the patent application scope, wherein the protection element is a plastic sheath. According to the parallel light fiber described in the first item of the patent application scope, the refraction angle of the curved surface can be any of 12 degrees and 18 degrees.