A handheld optical fiber end face detector and focusing structure
By using the combination of lens components and focus structure in the optical fiber end surface detector, the switching and adjustment of magnification is achieved, which solves the problem that existing detectors cannot adjust the magnification, and improves measurement accuracy and imaging clarity.
Patent Information
- Application Number
- CN202420986788.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-05-09
AI Technical Summary
Existing fiber end-face detectors can only display a fixed magnification, and cannot switch and adjust the magnification, resulting in limited measurement accuracy and imaging clarity.
A handheld fiber end-face detector is designed, which adopts a combination of a lens assembly and a focus structure. The lens assembly can adjust the focal length under the driving of the focus structure to achieve switching and adjustment of magnification.
By adjusting the focal length, the measurement accuracy and imaging clarity are improved, and are suitable for optical fibers of different sizes to meet more practical needs.
Smart Images
Figure CN222704526U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of optical fiber detection, and more specifically to a handheld optical fiber end face detector and a focusing structure. Background Art
[0002] Optical fiber is the abbreviation of optical fiber, which is a fiber made of glass or plastic and can be used as a light transmission tool. During the use of optical fiber, both ends of the optical fiber need to be polished to reduce reflections at both ends of the optical fiber. Defects on the end face of the optical fiber will affect the optical fiber itself and the optical system and may even cause permanent damage. Therefore, timely detection of problems with the end face of the optical fiber can avoid the potential risks caused by defects on the end face of the optical fiber, and facilitate targeted and timely repair of the end face of the optical fiber to avoid serious economic losses.
[0003] At present, the most commonly used fiber end face detector on the market is still a single-lens detection device based on an objective lens system, which can only display one magnification. The magnification of the single magnification technology cannot achieve the function of magnification switching and adjustment. Utility Model Content
[0004] In order to solve the deficiencies in the prior art, the utility model provides a handheld optical fiber end face detector and a focusing structure.
[0005] In order to have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be a general review, nor is it intended to identify key / important components or to delineate the scope of protection of these embodiments. Its only purpose is to present some concepts in a simple form as a preface to the detailed description that follows.
[0006] According to a first aspect of an embodiment of the utility model, a handheld optical fiber end face detector is provided.
[0007] A handheld optical fiber end face detector comprises: an detector housing with an optical fiber interface; the detector housing comprises two shells connected by snapping or bolting, which are easy to install or disassemble; a lens assembly is arranged at a position near the optical fiber interface inside the detector housing, and an imaging assembly matched with the lens assembly is assembled inside the detector housing; the lens assembly is connected to a focusing structure installed on the detector housing, so that it can move in a direction close to the optical fiber interface or away from the optical fiber interface inside the detector housing under the driving control of the focusing structure, so as to adjust the focal length.
[0008] Optionally, the lens assembly includes: a movable sleeve slidably arranged in the detector housing, and an end face magnifying lens installed in the movable sleeve; the movable sleeve is connected to the focusing structure to drive the end face magnifying lens to be close to or away from the optical fiber interface under the drive of the focusing structure.
[0009] Optionally, the focusing structure includes: a rotating wheel rotated on the detector housing, and an eccentric focusing shaft installed at an eccentric position of the rotating wheel; the eccentric focusing shaft is slidably fitted in a push-pull groove on the side of the movable sleeve.
[0010] Optionally, the outer axial surface of the eccentric focusing shaft rolls with the front side surface and the rear side surface inside the push-pull slide groove; the side surface of the rotating wheel away from the movable sleeve contacts and cooperates with the inner side surface of the detector housing.
[0011] Optionally, the focusing structure also includes: a focusing knob rotatably mounted on the detector housing, and a pinion coaxially fixedly connected to the focusing knob; the pinion is meshed with gear teeth on the outer surface of the rotating wheel; the diameter of the focusing knob and the diameter of the rotating wheel are both larger than the diameter of the pinion.
[0012] Optionally, a USB interface, preferably a USB Type-C interface, is provided at one end of the detector housing away from the optical fiber interface, and the USB interface is electrically connected to the imaging component.
[0013] Optionally, the handheld optical fiber end face detector further includes a guide seat arranged in the detector housing, and the guide seat is slidably fitted in the guide groove of the movable sleeve; a reflector is also arranged on the guide seat to reflect the optical fiber end face light collected by the lens assembly onto the imaging assembly through the reflector.
[0014] According to the second aspect of the embodiment of the utility model, a focusing structure is provided, including: a rotating wheel and an eccentric focusing shaft installed at an eccentric position of the rotating wheel; the eccentric focusing shaft is slidably arranged in a push-pull groove on the side of a movable sleeve, and the outer axial surface of the eccentric focusing shaft rolls with the front side and rear side surfaces inside the push-pull groove; the side surface of the rotating wheel away from the movable sleeve contacts and cooperates with the inner side surface of the outer shell.
[0015] Optionally, the gear teeth on the outer surface of the rotating wheel mesh with the pinion gear, the pinion gear and the focusing knob are fixedly connected to the rotating shaft rotated on the housing, and the pinion gear and the focusing knob are respectively located on the inner and outer sides of the housing.
[0016] The technical solution provided by the embodiment of the utility model may have the following beneficial effects:
[0017] The detector housing of the utility model is movably connected to a lens assembly, which can move in a direction close to the optical fiber interface or in a direction away from the optical fiber interface in the detector housing under the drive control of the focusing structure, so as to adjust the focal length and switch the magnification to improve the measurement accuracy and ensure the imaging clarity. It can also be applied to optical fibers of different sizes to meet more practical needs.
[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.
[0020] Figure 1 A schematic diagram of a handheld optical fiber end face detector provided by an embodiment of the utility model;
[0021] Figure 2 A schematic diagram of another viewing angle of a handheld optical fiber end face detector provided by an embodiment of the utility model;
[0022] Figure 3 A cross-sectional view of a handheld optical fiber end face detector provided in an embodiment of the utility model;
[0023] Figure 4 A partial structural schematic diagram of a handheld optical fiber end face detector provided by an embodiment of the utility model;
[0024] Figure 5 A schematic diagram of a lens assembly provided by an embodiment of the utility model;
[0025] Figure 6 A cross-sectional view of a lens assembly provided by an embodiment of the utility model;
[0026] Figure 7 A schematic diagram of the connection between the lens assembly and the focusing structure provided in the embodiment of the utility model;
[0027] Figure 8 A schematic diagram of a focusing structure provided by an embodiment of the utility model;
[0028] Fig. 9 A partial schematic diagram of a guide seat and a movable sleeve provided in an embodiment of the utility model.
[0029] Icons: detector housing 1; lens assembly 2; movable sleeve 201; end face magnifying lens 202; push-pull slide 203; guide slide 204; focusing structure 3; rotating wheel 301; eccentric focusing shaft 302; focusing knob 303; pinion 304; USB interface 4; guide seat 5; reflector 6. DETAILED DESCRIPTION
[0030] The following description and accompanying drawings fully illustrate the specific embodiments of this article so that those skilled in the art can practice them. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The scope of the embodiments of this article includes the entire scope of the claims, as well as all available equivalents of the claims. Herein, the terms "first", "second", etc. are only used to distinguish one element from another, without requiring or implying any actual relationship or order between these elements. In fact, the first element can also be called the second element, and vice versa. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the structure, device or equipment including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also include elements inherent to such structure, device or equipment. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the structure, device or equipment including the elements. Each embodiment is described in a progressive manner herein, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other.
[0031] The terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used herein to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this article and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of this article, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, it can also be the internal connection of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.
[0032] As used herein, unless otherwise specified, the term "plurality" means two or more than two.
[0033] In this document, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.
[0034] In this article, the term "and / or" is a description of the association relationship between objects, indicating that three relationships may exist. For example, A and / or B means: A or B, or, A and B.
[0035] It should be understood that, although the various steps in the flow chart are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these sub-steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
[0036] Each module in the device or system of the present application can be implemented in whole or in part by software, hardware, or a combination thereof. The above modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to the above modules.
[0037] In the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.
[0038] The following is combined with Figure 1-9 The utility model is described in further detail.
[0039] Embodiment 1
[0040] like Figure 1-9 As shown, the utility model provides a handheld optical fiber end face detector, comprising: an detector housing 1 with an optical fiber interface; an imaging component assembled in the detector housing 1, and a lens component 2 arranged in cooperation with the imaging component; a focusing structure 3 installed on the detector housing 1, the focusing structure 3 is connected to the lens component 2 to drive the lens component 2 to move in the detector housing 1 toward the direction close to the optical fiber interface or away from the optical fiber interface.
[0041] The utility model discloses a handheld optical fiber end face detector. During measurement, the optical fiber to be measured is installed at the optical fiber interface, and then a light source is provided by a lighting device in a detector housing 1 to illuminate the optical fiber end face for detection and imaging. Different types of lighting equipment can be selected according to specific detection requirements, such as LED lights, laser light sources, etc. The optical fiber at the optical fiber end face is formed on an imaging component after passing through a lens component 2. The imaging component can be a camera. The camera transmits the image on the optical fiber end face to an imaging sensor through a lens, and then converts it into a digital signal for processing and analysis. Through the imaging function of the camera, high-definition imaging of the optical fiber end face can be achieved, which is convenient for accurate detection and analysis. The lens component 2 is movably connected in the detector housing 1. The lens component 2 can move in a direction close to the optical fiber interface or in a direction away from the optical fiber interface in the detector housing 1 under the driving control of a focusing structure 3, so that the position of the lens component 2 can be adjusted, thereby realizing the adjustment of the focal length, and effectively switching and adjusting the magnification to improve the measurement accuracy and ensure the imaging clarity. It can also be applied to optical fibers of different sizes to meet more practical needs.
[0042] The lens assembly 2 comprises: a movable sleeve 201 slidably arranged in the detector housing 1, and an end face magnifying lens 202 installed in the movable sleeve 201; the movable sleeve 201 is connected to a focusing structure 3, so as to drive the end face magnifying lens 202 to approach or move away from the optical fiber interface under the drive of the focusing structure 3; the focusing structure 3 comprises: a rotating wheel 301 rotated on the detector housing 1, and an eccentric focusing shaft 302 installed at an eccentric position of the rotating wheel 301; the eccentric focusing shaft 302 slides and cooperates with the end face magnifying lens 202 to move the end face magnifying lens 202 closer to or farther from the optical fiber interface. In the push-pull slot 203 on the side of the movable sleeve 201; the outer axial surface of the eccentric focusing shaft 302 rolls with the front and rear side surfaces inside the push-pull slot 203; the side of the rotating wheel 301 away from the movable sleeve 201 contacts and cooperates with the inner side surface of the detector housing 1; the focusing structure 3 also includes: a focusing knob 303 rotated on the detector housing 1, and a pinion 304 coaxially fixedly connected to the focusing knob 303; the pinion 304 meshes with the gear teeth on the outer wheel surface of the rotating wheel 301.
[0043] When adjusting the position of the end face magnifying lens 202, the focus knob 303 is turned to drive the pinion 304 to rotate. The pinion 304 drives the rotating wheel 301 to rotate by meshing with the gear teeth on the outer wheel surface of the rotating wheel 301, so that the rotation of the rotating wheel 301 drives the eccentric focusing shaft 302 at the eccentric position of the rotating wheel 301 to rotate and orbit. Since the eccentric focusing shaft 302 slides in the push-pull groove 203 on the side of the movable sleeve 201, and the outer axis surface of the eccentric focusing shaft 302 rolls with the front side and rear side of the push-pull groove 203, the eccentric focusing shaft 302 can drive the movable sleeve 201 to slide in the front and rear directions in the detector housing 1 through the push-pull groove 203 during the rotation and orbit. When the eccentric focusing shaft 302 generates pressure on the front side of the push-pull groove 203, the controllable The movable sleeve 201 is controlled to slide forward. Conversely, when the eccentric focusing shaft 302 generates pressure on the rear side surface inside the push-pull slide groove 203, the movable sleeve 201 can be controlled to slide backward. The outer axis surface of the eccentric focusing shaft 302 rolls with the front side surface and the rear side surface inside the push-pull slide groove 203, thereby realizing a stable connection between the eccentric focusing shaft 302 and the movable sleeve 201; the diameter of the focusing knob 303 and the diameter of the rotating wheel 301 are both larger than the diameter of the pinion 304, thereby realizing precise transmission adjustment, and the side surface of the rotating wheel 301 away from the movable sleeve 201 contacts and cooperates with the inner side surface of the detector housing 1, so that the rotating wheel 301 is relatively fixed in position through friction contact with the inner side surface of the detector housing 1, and will not rotate easily without external force, thereby ensuring the stability of the end magnifying lens 202 after position adjustment.
[0044] A USB interface 4 is provided at one end of the detector housing 1 away from the optical fiber interface. The USB interface 4 is electrically connected to the imaging component to facilitate the transmission of the image on the optical fiber end face to the display device. A display screen can also be installed on the detector housing 1 for outdoor use without the need for external other display devices.
[0045] The handheld optical fiber end face detector also includes a guide seat 5 arranged in the detector housing 1. The guide seat 5 is slidably fitted in the guide groove 204 of the movable sleeve 201, which can improve the stability of the forward and backward sliding movement of the movable sleeve 201 and prevent the movable sleeve 201 from rotating in the detector housing 1.
[0046] The handheld optical fiber end face detector further includes a reflector 6 disposed on the guide seat 5, so as to reflect the optical fiber end face light collected by the lens assembly 2 onto the imaging assembly through the reflector 6. The reflector 6 can ensure that the light is reflected onto the imaging assembly along the correct path, thereby achieving clear imaging of the optical fiber end face. The reflector 6 can help achieve high-quality imaging and accurate measurement of the optical fiber end face, thereby improving product quality and work efficiency.
[0047] Embodiment 2
[0048] like Figure 1-9 As shown, the utility model provides a focusing structure, including: a rotating wheel 301 rotatably arranged on the housing 1 and an eccentric focusing shaft 302 installed at an eccentric position of the rotating wheel 301; the eccentric focusing shaft 302 is slidably arranged in a push-pull slot 203 on the side of the movable sleeve 201, and the outer shaft surface of the eccentric focusing shaft 302 rolls with the front side surface and the rear side surface inside the push-pull slot 203; the side surface of the rotating wheel 301 away from the movable sleeve 201 is in contact with the inner side surface of the housing 1; the gear teeth on the outer wheel surface of the rotating wheel 301 are meshed with the pinion 304, the pinion 304 and the focusing knob 303 are both fixedly connected to the rotating shaft rotatably arranged on the housing 1, and the pinion 304 and the focusing knob 303 are respectively located on the inner and outer sides of the housing 1.
[0049] This structure can be used for the detector described in Example 1, and can also be used for focal length adjustment of photographic equipment and shooting equipment. When it is used for focal length adjustment of the detector, rotating the focusing knob 303 drives the pinion 304 to rotate, and the pinion 304 drives the rotating wheel 301 to rotate by meshing with the gear teeth on the outer wheel surface of the rotating wheel 301, so that the rotation of the rotating wheel 301 drives the eccentric focusing shaft 302 at the eccentric position of the rotating wheel 301 to rotate and orbit. Since the eccentric focusing shaft 302 slides in the push-pull groove 203 on the side of the movable sleeve 201, and the outer shaft surface of the eccentric focusing shaft 302 rolls with the front side and rear side surfaces inside the push-pull groove 203, the eccentric focusing shaft 302 can drive the movable sleeve through the push-pull groove 203 during the rotation and orbit movement. The cylinder 201 performs sliding movement in the detector housing 1 in the front and rear directions. When the eccentric focusing shaft 302 generates pressure on the front side surface inside the push-pull slide groove 203, the movable sleeve 201 can be controlled to slide forward. Conversely, when the eccentric focusing shaft 302 generates pressure on the rear side surface inside the push-pull slide groove 203, the movable sleeve 201 can be controlled to slide backward. The outer axis surface of the eccentric focusing shaft 302 rolls with the front and rear side surfaces inside the push-pull slide groove 203 to achieve a stable connection between the eccentric focusing shaft 302 and the movable sleeve 201. The side of the rotating wheel 301 away from the movable sleeve 201 contacts and cooperates with the inner side surface of the detector housing 1, so that the rotating wheel 301 is relatively fixed in position through friction contact with the inner side surface of the detector housing 1 and will not rotate easily.
[0050] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the scope of protection of the claims of this application.
[0051] The present invention is not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims
1. A handheld optical fiber end face detector, characterized in that: include: A detector housing (1) having an optical fiber interface; An imaging component assembled in a detector housing (1), and a lens component (2) arranged in cooperation with the imaging component; A focusing structure (3) is mounted on the detector housing (1), and the focusing structure (3) is connected to the lens assembly (2) to drive the lens assembly (2) to move in a direction close to the optical fiber interface or in a direction away from the optical fiber interface within the detector housing (1); The lens assembly (2) comprises: A movable sleeve (201) slidably disposed in the detector housing (1), and an end face magnifying lens (202) installed in the movable sleeve (201); The movable sleeve (201) is connected to the focusing structure (3) so as to drive the end face magnifying lens (202) to approach the optical fiber interface or to move away from the optical fiber interface under the drive of the focusing structure (3); The focusing structure (3) comprises: A rotating wheel (301) rotatably mounted on a detector housing (1), and an eccentric focusing shaft (302) mounted at an eccentric position of the rotating wheel (301); The eccentric focusing shaft (302) is slidably fitted in the push-pull slide groove (203) on the side of the movable sleeve (201); The side of the rotating wheel (301) away from the movable sleeve (201) is in contact with the inner side of the detector housing (1); A USB interface (4) is provided at one end of the detector housing (1) away from the optical fiber interface, and the USB interface (4) is electrically connected to the imaging component; It also includes a guide seat (5) arranged in the detector housing (1), and the guide seat (5) is slidably matched in the guide groove (204) of the movable sleeve (201).
2. The handheld optical fiber end face detector according to claim 1, characterized in that: The outer axial surface of the eccentric focusing shaft (302) is in rolling cooperation with the front side surface and the rear side surface inside the push-pull slide groove (203).
3. The handheld optical fiber end face detector according to claim 1, characterized in that: The focusing structure (3) further comprises: A focusing knob (303) rotatably mounted on the detector housing (1), and a pinion gear (304) coaxially fixedly connected to the focusing knob (303); The pinion gear (304) meshes with the gear teeth on the outer wheel surface of the rotating wheel (301).
4. The handheld optical fiber end face detector according to claim 3, characterized in that: The diameter of the focus knob (303) and the diameter of the rotating wheel (301) are both greater than the diameter of the pinion gear (304).
5. A focusing structure, characterized in that: include: A rotating wheel (301) and an eccentric focusing shaft (302) mounted at an eccentric position of the rotating wheel (301); the eccentric focusing shaft (302) is slidably mounted in a push-pull slide groove (203) on the side of a movable sleeve (201), and an outer axial surface of the eccentric focusing shaft (302) is in rolling cooperation with a front side surface and a rear side surface inside the push-pull slide groove (203); and a side surface of the rotating wheel (301) away from the movable sleeve (201) is in contact cooperation with an inner side surface of the outer shell.
6. The focusing structure according to claim 5, characterized in that: The gear teeth on the outer surface of the rotating wheel (301) mesh with the pinion gear (304), and the pinion gear (304) and the focusing knob (303) are both fixedly connected to a rotating shaft arranged on the outer shell, and the pinion gear (304) and the focusing knob (303) are respectively located on the inner and outer sides of the outer shell.