Simple and efficient optical path switching device for multi-channel optical test

Abstract

The utility model relates to the field of optical equipment, in particular to a simple and efficient optical path switching device for multichannel optical testing, which comprises interface boards, a shading baffle, a motor, a Y-shaped optical fiber and an emergent optical fiber interface, the interface boards are provided with a first incident optical fiber interface and a second incident optical fiber interface, and the interface boards are positioned on two sides of the shading baffle. The light shielding baffle is used for shielding the first incident optical fiber interface and the second incident optical fiber interface, one end of the Y-shaped optical fiber is connected into the emergent optical fiber interface, and the device supports various light shielding baffle structures and movement modes, such as a fan-shaped structure matched with a rotating motor and a circular or square structure matched with a linear guide rail and a lead screw motor. According to the design, the device can be flexibly adjusted according to different application scenes and actual requirements, the adaptability and universality of the device are enhanced, the device can manage a plurality of incident optical fiber interfaces at the same time by adding an additional shading baffle, and efficient multi-channel optical testing is achieved.

Description

Technical Field

[0001] The utility model relates to the field of optical equipment, in particular to a simple and efficient optical path switching device for multi-channel optical testing. Background Art

[0002] In modern optical equipment and optical path construction, traditional optical path switching methods have exposed significant limitations, especially in critical applications such as testing optical color and vegetation index. These limitations are mainly reflected in the limitation of single-channel connections and the shortcomings of existing optical path switching systems.

[0003] First, the limitation of single-channel connections is a core issue. Traditionally, an optical device (such as a spectrometer or photodetector) can only connect a single channel of the optical path during a single experiment. This means that when experiments require multi-channel connections, researchers are forced to resort to two inefficient approaches: first, repeated testing using multiple optical devices significantly increases test time and cost; second, re-debugging the instrument and optical path, a tedious process that is prone to introducing errors and further reduces test efficiency.

[0004] Secondly, existing optical path switching systems also have many shortcomings. Take the rotating prism coupling system as an example. This system has a complex structure and relies on a motor to rotate the prism to couple light into the optical fiber. This complex structure not only increases maintenance costs, but also, during long-term use, the positioning block may fail due to wear and aging, resulting in a decrease in coupling efficiency, which in turn affects the accuracy of test results. In addition, the method of directly moving the optical fiber for coupling also faces similar problems. Wear and aging of mechanical components will also affect the coupling efficiency and accuracy, greatly reducing the reliability of test results. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a simple and efficient optical path switching device for multi-channel optical testing.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: The present invention provides a simple and efficient optical path switching device for multi-channel optical testing, comprising an interface board, a light-shielding baffle, a motor, a Y-shaped optical fiber and an output optical fiber interface, wherein the interface board is provided with a first input optical fiber interface and a second input optical fiber interface, the interface board is located on both sides of the light-shielding baffle, the light-shielding baffle is used to shield the first input optical fiber interface and the second input optical fiber interface, one end of the Y-shaped optical fiber is connected to the output optical fiber interface, and the other end of the Y-shaped optical fiber is respectively connected to the first input optical fiber interface and the second input optical fiber interface, a motor interface is provided on the light-shielding baffle, and the output end of the motor is connected to the motor interface.

[0007] Preferably, the light-shielding baffle adopts any one of a fan-shaped structure, a circular structure and a square structure.

[0008] Further preferably, the motor includes a rotary motor, and the rotary motor is adapted to a light-shielding baffle with a fan-shaped structure.

[0009] Again preferably, it further comprises edge blocks, which are arranged on both sides of the interface plate and are adapted to the light shielding baffle of the fan-shaped structure.

[0010] Preferably, it also includes a linear guide rail, the motor includes a screw motor, a guide rail groove is provided on the side of the linear guide rail, an adjusting screw is rotatably installed in the guide rail groove, the screw motor is fixedly installed at the end of the linear guide rail, the adjusting screw is connected to the output end of the screw motor, a slider is slidably installed on the linear guide rail, and the slider is mounted on the adjusting screw.

[0011] Further preferably, at least two of the linear guide rails and the light-shielding baffles are provided, and the two light-shielding baffles are circular or square structures, and the sides of the light-shielding baffles are fixedly mounted on the slider.

[0012] Again preferably, the interface plate is installed at the bottom and top of the slider, and there are at least two light-shielding baffles. The light-shielding baffles adopt a circular structure or a square structure, and the two light-shielding baffles are staggered up and down and respectively adapted to the first incident optical fiber interface and the second incident optical fiber interface on the interface plate.

[0013] Preferably, guide grooves are provided at the top and bottom ends of the linear guide rail, the slider is sleeved on the linear guide rail, and the slider is slidably connected to the guide grooves via a guide rod.

[0014] Further preferably, the shading baffle is a black shading baffle.

[0015] Again preferably, the Y-type optical fiber adopts a multi-core optical fiber, or a single-core fused optical fiber.

[0016] Compared with the prior art, the present invention provides a simple and efficient optical path switching device for multi-channel optical testing, which has the following beneficial effects:

[0017] Rapid optical path switching: The device controls the position of the light-shielding plate through mechanical movement, quickly and accurately blocking or opening different input fiber interfaces. This design makes optical path switching efficient and simple, significantly improving test efficiency.

[0018] Improved Test Accuracy: The black baffle effectively blocks light and reduces the possibility of light leakage. Edge stops ensure the baffle stops at the desired position, preventing misoperation caused by excessive movement and improving test accuracy.

[0019] Strong Adaptability: The device supports a variety of baffle structures and motion modes, such as fan-shaped structures with rotary motors, circular or square structures with linear guides and lead screw motors, etc. This design allows the device to be flexibly adjusted according to different application scenarios and actual needs, enhancing its adaptability and versatility.

[0020] Support for Multi-Channel Testing: By adding additional light shielding panels, the device can simultaneously manage multiple incoming fiber interfaces, enabling efficient multi-channel optical testing. This design not only improves test efficiency but also reduces test costs.

[0021] Stable and Reliable System: The use of a linear guide system ensures precise positioning and stable movement of the light shield, improving the reliability and accuracy of the entire system. Furthermore, the slide is connected to the guide groove via a guide rod, further enhancing the stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the fan-shaped shading baffle used in the utility model;

[0023] Figure 2 This is a schematic diagram of the assembly structure of the linear guide rail and the light shielding baffle of the utility model;

[0024] Figure 3 This is a schematic diagram of the Y-type optical fiber injection structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the assembly structure of the linear guide rail and the interface plate of the utility model;

[0026] In the figure: 1. Light receiving plate; 2. Light shielding baffle; 3. First incident optical fiber interface; 4. Second incident optical fiber interface; 5. Motor interface; 6. Rotary motor; 7. Y-type optical fiber; 8. Output optical fiber interface; 9. Edge block; 10. Linear guide rail; 11. Lead screw motor; 12. Guide rail groove; 13. Adjustment lead screw; 14. Slider; 15. Guide groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-4 The utility model discloses a simple and efficient optical path switching device for multi-channel optical testing, comprising an interface board 1, a light-shielding baffle 2, a motor, a Y-type optical fiber 7 and an output optical fiber interface 8. The interface board 1 is provided with a first incident optical fiber interface 3 and a second incident optical fiber interface 4. The interface board 1 is located on both sides of the light-shielding baffle 2. The light-shielding baffle 2 is used to shield the first incident optical fiber interface 3 and the second incident optical fiber interface 4. One end of the Y-type optical fiber 7 is connected to the output optical fiber interface 8, and the other end of the Y-type optical fiber 7 is respectively connected to the first incident optical fiber interface 3 and the second incident optical fiber interface 4. The light-shielding baffle 2 is provided with a motor interface 5, and the output end of the motor is connected to the motor interface 5.

[0029] This simple and efficient optical path switching device for multi-channel optical testing is designed to provide flexible, fast, and reliable optical path selection for multi-channel optical testing. By combining a mechanical structure with optical fiber connections, it enables precise switching of optical signals between different input fiber interfaces, ensuring high efficiency and accuracy during testing.

[0030] Working principles of each preferred technical solution

[0031] like Figure 1 and Figure 3 As shown, embodiment 1: Rotating light shielding baffle 2 solution

[0032] Core components: interface board 1, light shielding plate 2 (fan-shaped / circular / square), motor (rotating motor 6), Y-type optical fiber 7, output optical fiber interface 8.

[0033] Workflow:

[0034] The interface board 1 is provided with a first incident optical fiber interface 3 and a second incident optical fiber interface 4 , which are located on both sides of the light shielding baffle 2 .

[0035] The light shielding plate 2 can be driven to rotate by a motor to selectively shield or expose one of the two incident optical fiber interfaces.

[0036] One end of the Y-type optical fiber 7 is connected to the output optical fiber interface 8 , and the other end is connected to the two input optical fiber interfaces respectively, allowing the optical signal to be directed to any path according to the position of the light shielding baffle 2 .

[0037] The rotating motor 6 is adapted to the fan-shaped light-shielding baffle 2 and is connected via the motor interface 5 to achieve precise positioning of the light-shielding baffle 2 .

[0038] Edge blocks 9 are provided on both sides of the interface board 1 to ensure that the light shielding baffle 2 is accurately aligned with the incident optical fiber interface.

[0039] like Figure 2 As shown, embodiment 2: linear sliding shading baffle 2 solution

[0040] New components: linear guide 10, lead screw motor 11, adjusting lead screw 13, slider 14.

[0041] Workflow:

[0042] The linear guide rail 10 is equipped with a guide rail groove 12 , in which a rotatable adjusting screw 13 is installed. The screw motor 11 is fixed to the end of the guide rail and connected to the adjusting screw 13 .

[0043] The slider 14 is sleeved on the adjusting screw rod 13 and can slide on the linear guide rail 10 .

[0044] At least two light shielding baffles 2 (circular or square) are provided, which are fixed on the slider 14 and change position as the slider 14 moves.

[0045] When the linear guide rail 10 is arranged between two incident optical fiber interfaces, the light shielding baffles 2 can be arranged in a staggered manner, so that when one shields one incident optical fiber interface, the other remains open.

[0046] The above-mentioned linear guide rail 10 can also be set up alone and arranged between the first incident fiber optic interface 3 and the second incident fiber optic interface 4, and the two light-shielding baffles 2 are arranged alternately up and down, so that one light-shielding baffle 2 covers one of the first incident fiber optic interface 3 or the second incident fiber optic interface 4, and the other is not covered.

[0047] like Figure 4 As shown, embodiment 3: the scheme of shading baffles 2 arranged in an upper and lower staggered manner

[0048] Improvements: The interface board 1 is installed at the bottom and top of the slider 14 on the linear guide rail 10, and at least two light shielding baffles 2 adopt a circular or square structure and are staggered up and down.

[0049] Workflow: This layout optimizes space utilization while ensuring that each light-shielding baffle 2 can accurately cover the corresponding incident optical fiber interface, achieving efficient switching of the optical path.

[0050] Detailed workflow summary

[0051] Initialization preparation: Connect the light source to be tested to the system through an appropriate incident fiber interface. Y-type optical fiber 7 is used as the transmission medium, with its two ends connected to different incident fiber interfaces and a single output fiber interface 8.

[0052] Select a switching mode: Select one of the modes in Embodiments 1, 2, or 3 to perform optical path switching operations based on actual needs.

[0053] Execute the switching action:

[0054] For the rotary light shielding baffle 2, the rotary motor 6 is started to rotate the light shielding baffle 2 to a specified angle to shield or expose the corresponding incident optical fiber interface.

[0055] For the linear sliding light shielding baffle 2 , the lead screw motor 11 is activated to drive the slider 14 to move along the linear guide rail 10 , thereby adjusting the position of the light shielding baffle 2 .

[0056] Confirm the switching result: Check whether the light shielding plate 2 correctly covers the target incident optical fiber interface to ensure that only the selected optical path is unobstructed.

[0057] Start optical testing: Once you confirm that the optical path has been switched correctly, you can start multi-channel optical testing and record and analyze the test data.

[0058] Repeat the above steps: According to the test plan, repeat the switching and testing process until all the planned tasks are completed.

[0059] Additional features of the first, second and third embodiments

[0060] Black light shielding baffle: Use black material to make light shielding baffle 2 to reduce unnecessary light reflection and improve test accuracy.

[0061] Multi-core or multimode Y-type fiber 7: Supports the use of multi-core fiber or single-core fiber produced by the fused-taper method to meet the needs of more types of optical signal transmission.

[0062] Scalability: In addition to the standard first incident fiber interface 3 and the second incident fiber interface 4, additional incident fiber interfaces can be added as needed, and the design and driving mechanism of the light shielding plate 2 can be adjusted accordingly to match more test scenarios.

[0063] In summary, the present invention provides a simple and efficient solution to achieve optical path switching in multi-channel optical testing by cleverly combining mechanical motion and fiber optic technology, significantly improving the convenience and efficiency of testing work.

[0064] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A simple and efficient optical path switching device for multi-channel optical testing, characterized in that: The invention comprises an interface board (1), a light shielding baffle (2), a motor, a Y-type optical fiber (7) and an output optical fiber interface (8); the interface board (1) is provided with a first incident optical fiber interface (3) and a second incident optical fiber interface (4); the interface board (1) is located on both sides of the light shielding baffle (2); the light shielding baffle (2) is used to shield the first incident optical fiber interface (3) and the second incident optical fiber interface (4); one end of the Y-type optical fiber (7) is connected to the output optical fiber interface (8); the other end of the Y-type optical fiber (7) is respectively connected to the first incident optical fiber interface (3) and the second incident optical fiber interface (4); the light shielding baffle (2) is provided with a motor interface (5); the output end of the motor is connected to the motor interface (5).

2. The simple and efficient optical path switching device for multi-channel optical testing according to claim 1, characterized in that: The light shielding baffle (2) adopts any one of a fan-shaped structure, a circular structure and a square structure.

3. The simple and efficient optical path switching device for multi-channel optical testing according to claim 2, characterized in that: The motor comprises a rotating motor (6), and the rotating motor (6) is adapted to the light shielding baffle (2) of a fan-shaped structure.

4. The simple and efficient optical path switching device for multi-channel optical testing according to claim 3, characterized in that: It also includes edge blocks (9), which are arranged on both sides of the interface plate (1), and the edge blocks (9) are adapted to the light shielding baffle (2) of the fan-shaped structure.

5. The simple and efficient optical path switching device for multi-channel optical testing according to claim 2, characterized in that: The invention also includes a linear guide rail (10), the motor includes a screw motor (11), a guide rail groove (12) is provided on the side of the linear guide rail (10), an adjusting screw rod (13) is rotatably installed in the guide rail groove (12), the screw motor (11) is fixedly installed at the end of the linear guide rail (10), the adjusting screw rod (13) is connected to the output end of the screw motor (11), and a slider (14) is slidably installed on the linear guide rail (10), and the slider (14) is sleeved on the adjusting screw rod (13).

6. The simple and efficient optical path switching device for multi-channel optical testing according to claim 5, characterized in that: At least two of the linear guide rails (10) and the light shielding baffles (2) are provided, and the two light shielding baffles (2) are circular or square structures, and the sides of the light shielding baffles (2) are fixedly mounted on the slider (14).

7. The simple and efficient optical path switching device for multi-channel optical testing according to claim 5, characterized in that: The interface board (1) is mounted on the bottom and top ends of the slider (14), and at least two light shielding baffles (2) are provided. The light shielding baffles (2) adopt a circular structure or a square structure, and the two light shielding baffles (2) are staggered up and down and respectively adapted to the first incident optical fiber interface (3) and the second incident optical fiber interface (4) on the interface board (1).

8. The simple and efficient optical path switching device for multi-channel optical testing according to claim 5, characterized in that: The top and bottom ends of the linear guide rail (10) are provided with guide grooves (15), the slider (14) is sleeved on the linear guide rail (10), and the slider (14) is slidably connected to the guide groove (15) via a guide rod.

9. The simple and efficient optical path switching device for multi-channel optical testing according to claim 2, characterized in that: The shading baffle (2) is a black shading baffle.

10. The simple and efficient optical path switching device for multi-channel optical testing according to claim 1, characterized in that: The Y-type optical fiber (7) adopts a multi-core optical fiber or a single-core fused optical fiber.

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