An adjustable CMOS image position fiber end face detector

Abstract

The utility model relates to the technical field of optical fiber end face detector, concretely is a kind of optical fiber end face detector of adjustable CMOS image position, including optical fiber end face detector ontology, half worm wheel, pivot, angle disc, first frame, worm, second frame, connecting bolt, short axle mounting ear, transparent block, pointer, frame mounting ear, through-hole.The utility model structure is ingenious, and user can be flexibly installed according to demand, and device can be individually horizontal or elevation adjustment, also can horizontal and elevation adjustment simultaneously, adapt multiple test and use scene, adopt worm worm wheel drive, cooperate angle disc, transparent block pointer, so that device angle adjustment accurate and indication clear, it is convenient to directly view to the best angle, not only be favorable to the fine adjustment after installation, and be favorable to the repair and maintenance of later period, it is convenient to use and promote.

Description

Technical Field

[0001] This utility model relates to the technical field of fiber optic end-face inspection instruments, specifically a fiber optic end-face inspection instrument with adjustable CMOS image position. Background Technology

[0002] Fiber optic end-face inspection instruments play a crucial role in the maintenance and installation of fiber optic communication networks. They can visually display the condition of the fiber end-face through imaging. However, the image acquisition and imaging components of existing fiber optic end-face inspection instruments are assembled using fixed holes. In actual production, due to processing errors, it is difficult to guarantee the concentricity of the CMOS component with the front components after assembly. This can easily lead to image misalignment. If the image misalignment is severe, the component needs to be reworked, which not only affects later use but also reduces the yield rate of the device and increases production costs. Utility Model Content

[0003] The purpose of this invention is to provide an optical fiber end face inspection instrument with adjustable CMOS image position to solve the aforementioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an adjustable CMOS image position fiber optic end face detector, comprising an image acquisition unit and a CMOS component imaging unit, wherein the image acquisition unit and the CMOS component imaging unit are connected by connecting bolts. The image acquisition unit includes an adapter, a lens unit, an illumination unit, and a focus adjustment unit. The lens unit is provided with an acquisition lens, the illumination unit is provided with an optical lens and an LED light, and the focus adjustment unit is provided with a focus adjustment ring. The adapter, lens unit, illumination unit, and focus adjustment unit are arranged and connected sequentially from left to right. The housing of the focus adjustment unit has open waist holes on both sides, and a sealing ring is provided at the end of the housing of the focus adjustment unit. The sealing ring is a circular sealing strip. The CMOS component imaging unit includes a base and a PCB board. The base is fixedly connected to one side of the PCB board. The base has waist holes on both sides and also includes nuts adapted to the connecting bolts. The connecting bolts pass through the open waist holes and the waist holes and are locked by the nuts. A dustproof groove is provided on one side of the base. When the image acquisition unit and the CMOS component imaging unit are fixed by the connecting bolts, the dustproof groove abuts against the sealing ring.

[0005] Preferably, a lens is installed at the end of the base away from the PCB board, and an adjustment gap is formed between the lens mounting area of ​​the base and the inner wall of the focus adjustment part, the width of the adjustment gap being the same as the width of the dustproof groove.

[0006] Preferably, a CMOS image sensor is provided on one side of the PCB board for receiving and processing image signals from the image acquisition unit.

[0007] Preferably, the sealing ring abuts against the dustproof groove, which can effectively prevent dust from entering the device and reduce the impact of dust on imaging quality.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes open waist holes on both sides of the focal length adjustment housing of the image acquisition unit and on both sides of the base of the CMOS component imaging unit. When connected and fixed with connecting bolts, this allows for fine-tuning of the relative position between the image acquisition unit and the CMOS component imaging unit. During assembly and debugging, if an image position shift is detected, the relative mounting positions of the image acquisition unit and the CMOS component imaging unit can be changed to center the image in the display area. Compared to traditional screw hole locking methods, this adjustable connection method effectively avoids image shift after assembly due to manufacturing errors, solves the eccentricity problem caused by structural component manufacturing errors, significantly improves the product's imaging effect and stability, increases the yield rate of the device, and reduces production costs.

[0009] The sealing ring abuts against the dustproof groove of the base, which can effectively prevent dust from entering the device. This greatly reduces the occurrence of dust entering the device and affecting the imaging quality during later use, and further ensures the imaging quality and service life of the detector. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the image acquisition unit and the CMOS component imaging unit of this utility model when they are not connected; Figure 3 This utility model Figure 1 Front view sectional structural diagram; Figure 4 This is a three-dimensional structural diagram of the imaging unit of the CMOS component of this utility model; Figure 5 This is a physical image of the present utility model.

[0011] In the diagram: 1. Image acquisition unit; 2. CMOS component imaging unit; 3. Connecting bolt; 4. Adjustment gap; 101. Adapter; 102. Lens unit; 103. Illumination unit; 104. Focus adjustment unit; 1041. Open waist hole; 105. Sealing ring; 21. Base; 22. PCB board; 2101. Dustproof groove; 2102. Waist hole. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figures 1 to 5 The present invention provides a technical solution: an optical fiber end face detector with adjustable CMOS image position, comprising an image acquisition unit 1 and a CMOS component imaging unit 2, which are connected by a connecting bolt 3.

[0014] The image acquisition unit 1 includes an adapter 101, a lens 102, an illumination unit 103, and a focus adjustment unit 104. The adapter 101 is used to connect to different types of fiber optic connectors to adapt to different fiber end-face inspection requirements. The lens 102 is connected to the adapter 101 and is responsible for magnifying and imaging the fiber end-face. The illumination unit 103 is located near the lens 102 to provide sufficient illumination to the fiber end-face, ensuring clear imaging. The focus adjustment unit 104 is connected to the lens 102; by rotating the focus adjustment unit 104, the focus of the lens 102 can be adjusted to adapt to the inspection requirements of different fiber end-faces. The focus adjustment unit 104 has open waist holes 1041 on both sides of its housing, and a sealing ring 105, which is a circular sealing strip, is provided at its end.

[0015] The CMOS imaging unit 2 mainly includes a base 21 and a PCB board 22. The base 21 is fixedly connected to one side of the PCB board 22 and is used to support and fix the various components of the CMOS imaging unit 2. The base 21 has slots 2102 on both sides for connection with the focus adjustment unit 104 of the image acquisition unit 1 via connecting bolts 3. Additionally, a dustproof groove 2101 is provided on one side of the base 21. After the image acquisition unit 1 and the CMOS imaging unit 2 are fixed together by the connecting bolts 3, the dustproof groove 2101 tightly abuts against the sealing ring 105. A lens is mounted on the end of the base 21 away from the PCB board 22. An adjustment gap 4 is formed between the lens mounting area of ​​the base 21 and the inner wall of the focus adjustment unit 104. The width of the adjustment gap 4 is the same as the width of the dustproof groove 2101. A CMOS image sensor is provided on one side of the PCB board 22 for receiving and processing image signals from the image acquisition unit 1.

[0016] In the actual assembly process, the connecting bolts 3 are first passed through the open waist holes 1041 on both sides of the focus adjustment part 104 housing and the waist holes 2102 on both sides of the base 21. Then, they are tightened with nuts that are compatible with the connecting bolts 3, thereby fixing the image acquisition part 1 and the CMOS component imaging part 2 together. If the image position is found to be offset during the imaging process, the nuts can be loosened appropriately to adjust the relative position of the image acquisition part 1 and the CMOS component imaging part 2 so that the image is located in the center area of ​​the display. After adjustment, the nuts are tightened again to fix it. This adjustable connection method effectively solves the problem of imaging position offset caused by processing errors, and improves the imaging effect and stability of the detector.

[0017] Meanwhile, the sealing ring 105 and the dustproof groove 2101 of the base 21 are tightly abutted together, forming an effective dustproof barrier that can prevent dust from entering the device, reduce the impact of dust on imaging quality, and ensure the imaging quality and reliability of the detector during long-term use.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fiber optic end-face inspection instrument with adjustable CMOS image position, characterized in that: The system includes an image acquisition unit (1) and a CMOS component imaging unit (2), which are connected by a connecting bolt (3). The image acquisition unit (1) includes an adapter (101), a lens (102), an illumination unit (103), and a focus adjustment unit (104). The focus adjustment unit (104) has open waist holes (1041) on both sides of its housing and a sealing ring (105) at the end of its housing. The CMOS component imaging unit (2) includes a base (21) and a PCB board (22). The base (21) is fixedly connected to one side of the PCB board (22). The base (21) has waist holes (2102) on both sides of its housing and a dustproof groove (2101) on one side of its housing. When the image acquisition unit (1) and the CMOS component imaging unit (2) are fixed by the connecting bolt (3), the dustproof groove (2101) abuts against the sealing ring (105).

2. The fiber optic end-face inspection instrument with adjustable CMOS image position according to claim 1, characterized in that: A lens is installed at the end of the base (21) away from the PCB board (22). An adjustment gap (4) is formed between the lens installation area of ​​the base (21) and the inner wall of the focal length adjustment part (104). The width of the adjustment gap (4) is the same as the width of the dustproof groove (2101).

3. The fiber optic end-face inspection instrument with adjustable CMOS image position according to claim 1, characterized in that: It also includes a nut that is adapted to the connecting bolt (3), which passes through the open slot (1041) and slot (2102) and is locked by the nut.

4. The fiber optic end-face inspection instrument with adjustable CMOS image position according to claim 2, characterized in that: The sealing ring (105) is a circular sealing strip.

5. The fiber optic end-face inspection instrument with adjustable CMOS image position according to claim 1, characterized in that: A CMOS image sensor is provided on one side of the PCB board (22).

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