Spectrometer lens structure
Patent Information
- Application Number
- CN202522677321.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-17
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-12-17
AI Technical Summary
当镜头未安装或处于拆卸状态时，该光学接口直接暴露于外部环境中，形成一个开放式的通光孔道，其内部依次连通快门组件、滤光片、分光元件乃至探测器等精密光学部件，虽部分设备配备专用防尘盖，但需用户手动安装/取下，在频繁更换镜头、校准或维护过程中，用户常因疏忽而长时间敞开通光口，导致防护失效，为此，本发明人提出了一种光谱测试仪镜头结构，以解决上述提出的技术问题
[0010] Compared with the prior art, the beneficial effects of this utility model are: by setting up a dust baffle, a linkage plate, an insert block and a control protrusion, the action of taking out and installing the lens module is linked with the opening and closing of the dust baffle, so that when the lens is taken out, the dust baffle retracts and blocks the light passage to prevent dust from entering, thus avoiding the problem that users often leave the light passage open for a long time due to negligence, resulting in the failure of protection.
Smart Images
Figure CN224861177U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spectrometer technology, and in particular to a lens structure for a spectrometer. Background Technology
[0002] A spectrometer, also known as a spectrometer or spectrometer analyzer, is a scientific instrument used to measure the intensity distribution of light as a function of wavelength (or frequency, energy). It obtains the "spectral fingerprint" of a substance by decomposing composite light into components of different wavelengths and detecting the intensity of light in each band. It is widely used in physics, chemistry, biology, materials science, environmental science, industry, and medicine. There are several types of spectrometers, including fiber optic spectrometers, handheld spectrometers, X-ray fluorescence spectrometers, atomic absorption spectrometers, and imaging spectrometers. Among them, imaging spectrometers require a lens to image the target scene and analyze the spectrum.
[0003] In existing spectrometers, lenses are typically mounted to the optical interface at the front of the instrument via detachable methods (such as threaded connections or bayonet mounts). When the lens is not installed or is in a detached state, this optical interface is directly exposed to the external environment, forming an open light-transmitting channel. This channel connects sequentially to precision optical components such as the shutter assembly, filters, beam splitters, and even detectors. Although some devices are equipped with dedicated dust covers, these must be manually installed / removed by the user. During frequent lens changes, calibrations, or maintenance, users often leave the light-transmitting port open for extended periods due to negligence, leading to a failure of the protective cover. Therefore, the inventors have proposed a lens structure for a spectrometer to address the aforementioned technical problems. Utility Model Content
[0004] The purpose of this utility model is achieved through the following method: a lens structure for a spectral analyzer, including an analyzer body, a lens module, and a connecting component. The lens module is installed on one side of the analyzer body, and the connecting component is installed between the lens module and the analyzer body. The connecting component includes a mounting base, a dust baffle, and a dust cover. The mounting base has a mounting groove on the side near the lens module. The dust cover covers the mounting groove, and the top of the dust cover is hinged to the side wall of the analyzer body. The dust baffle is swayably distributed around the bottom of the mounting groove. A linkage plate is provided on the side of the dust baffle away from the bottom of the mounting groove. The linkage plate is driven to connect with the dust baffle. Control protrusions are evenly distributed on the four quarter points of the linkage plate. The lens module has a plug that complements the control protrusion near the control protrusion. A limiting plate is provided at the opening of the mounting groove. The limiting plate has a plug hole that matches the plug near the limiting block. A locking position is provided on one side of the plug hole. The plug is connected to the lens module through a connecting post that matches the locking position.
[0005] In the above description, as a further embodiment, the bottom edge of the mounting groove is surrounded by limit posts, and the side wall of the linkage plate is provided with a swing groove that matches the limit posts. The cylindrical surface of the linkage plate is in contact with the groove wall of the mounting groove, and the outer cylindrical surface of the linkage plate slides in contact with the groove wall of the mounting groove.
[0006] In the above description, as a further embodiment, the dust baffle has a petal-shaped structure, one end of the dust baffle is hinged to the bottom of the mounting groove, and the dust baffle and the linkage plate are connected by a linkage rod, one end of the linkage rod is hinged to one end of the dust baffle, and the end of the linkage rod away from the dust baffle is hinged to the linkage plate.
[0007] In the above description, as a further embodiment, a guide plate is provided between the linkage plate and the limiting plate. The guide plate is provided with a guide groove that matches the control protrusion near the position of the control protrusion. The end of the guide groove away from the control protrusion extends along the center direction. The outer cylindrical surface of the guide plate is fixedly connected to the groove wall of the mounting groove. The middle of the mounting base, the linkage plate, the limiting plate and the guide plate are all provided with a conduction window.
[0008] In a further embodiment of the above description, a locking pin is provided on one side of the outer cylindrical surface of the mounting base near the insertion block, and a locking socket matching the locking pin is provided on the outer cylindrical surface of the insertion block. One end of the locking pin extends through the mounting base toward the locking socket.
[0009] In a further embodiment of the above description, a mounting block is provided on the outer side of the mounting base near the locking pin. The middle of the mounting block is provided with a movable groove that matches the locking pin. The locking pin is movably disposed in the movable groove. A push-out spring is provided at the end of the movable groove away from the locking socket. The push-out spring is connected to the locking pin. A control protrusion is provided on one side of the locking pin. The control protrusion extends toward the outer wall of the mounting block. A clearance groove matching the control protrusion is provided on the mounting block near the control protrusion.
[0010] Compared with the prior art, the beneficial effects of this utility model are: by setting up a dust baffle, a linkage plate, an insert block and a control protrusion, the action of taking out and installing the lens module is linked with the opening and closing of the dust baffle, so that when the lens is taken out, the dust baffle retracts and blocks the light passage to prevent dust from entering, thus avoiding the problem that users often leave the light passage open for a long time due to negligence, resulting in the failure of protection. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the lens module installation state in the lens structure of a spectral tester according to this utility model; Figure 2 This is a three-dimensional structural diagram of the lens module of a spectral analyzer in the uninstalled state. Figure 3 This is an exploded structural diagram of the connecting components in the lens structure of a spectral analyzer according to the present invention. Figure 4 This is an exploded structural diagram of the connecting component in the lens structure of a spectral analyzer according to this utility model, taken from another perspective. Figure 5 This is a schematic diagram of the working state of the locking pin in the lens structure of a spectral analyzer according to this utility model; In the diagram: 1-Tester body, 2-Lens module, 3-Mounting base, 4-Dust baffle, 5-Dust cover; 6-Mounting slot, 7-Linkage plate, 8-Control protrusion, 9-Insertion block, 10-Limit plate, 11-Insertion hole; 12-Stop position, 13-Connecting column, 14-Limiting column, 15-Swing groove, 16-Linkage rod, 17-Guide plate; 18-Guide groove, 19-Conducting window, 20-Locking pin, 21-Locking socket, 22-Mounting block; 23-Moving groove, 24-Ejection spring, 25-Control protrusion, 26-Avoidance groove. Detailed Implementation
[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0013] For this embodiment, please refer to Figures 1-5 The specific implementation of a spectral analyzer lens structure includes an analyzer body 1, a lens module 2, and a connecting assembly. The lens module 2 is installed on one side of the analyzer body 1, and the connecting assembly is installed between the lens module 2 and the analyzer body 1. The connecting assembly includes a mounting base 3, a dust baffle 4, and a dust cover 5. The mounting base 3 has a mounting groove 6 on the side surface near the lens module 2. The dust cover 5 covers the mounting groove 6, and the top of the dust cover 5 is hinged to the side wall of the analyzer body 1. The dust baffle 4 is swayably distributed around the groove of the mounting groove 6. At the bottom, a linkage plate 7 is provided on the side of the dust baffle 4 away from the bottom of the mounting groove 6. The linkage plate 7 is driven to connect with the dust baffle 4. Control protrusions 8 are evenly distributed on the four quarter points of the linkage plate 7. An insert block 9 that complements the control protrusion 8 is provided on the lens module 2 near the control protrusion 8. A limit plate 10 is provided at the groove opening of the mounting groove 6. An insertion hole 11 that matches the insert block 9 is provided on the limit plate 10 near the limit block. A locking position 12 is provided on one side of the insertion hole 11. The insert block 9 is connected to the lens module 2 through a connecting post 13 that matches the locking position 12. Specifically, during installation, after aligning the insert 9 on the lens module 2 with the insertion hole 11, rotate the lens module 2. The lens module 2 will drive the connecting post 13 and the insert 9 to move toward the locking position 12, thereby connecting the lens module 2 to the tester body. Furthermore, when the insert 9 enters the socket 11, the socket 11 will cooperate with the control protrusion 8. When the lens module 2 moves the insert 9, it will move the control protrusion 8 toward the stop position 12, thereby causing the linkage plate 7 to pull the linkage rod 16 and the dust baffle 4 to expand outward, thus achieving the effect of conduction. When the lens module 2 is removed, the lens module 2 is controlled to move in the opposite direction. The lens module 2 drives the control protrusion 8 to move in the opposite direction, which in turn drives the linkage plate 7 to rotate in the opposite direction. At the same time, the linkage plate 7 drives the linkage rod 16 and the dust baffle 4 to retract inward, so as to achieve the effect of blocking dust after the lens is removed.
[0014] The bottom edge of the mounting groove 6 is surrounded by limiting posts 14. The side wall of the linkage plate 7 is provided with a swing groove 15 that matches the limiting posts 14. The cylindrical surface of the linkage plate 7 is in contact with the groove wall of the mounting groove 6, and the outer cylindrical surface of the linkage plate 7 slides in contact with the groove wall of the mounting groove 6. The dust baffle 4 has a petal-shaped structure. One end of the dust baffle 4 is hinged to the bottom of the mounting groove 6. The dust baffle 4 and the linkage plate 7 are connected by a linkage rod 16. One end of the linkage rod 16 is hinged to one end of the dust baffle 4, and the end of the linkage rod 16 away from the dust baffle 4 is hinged to the linkage plate 7. A guide plate 17 is provided between the linkage plate 7 and the limiting plate 10. A guide groove 18 matching the control protrusion 8 is provided on the guide plate 17 near the control protrusion 8. The end of the guide groove 18 away from the control protrusion 8 extends along the center direction. The outer cylindrical surface of the guide plate 17 is fixedly connected to the groove wall of the mounting groove 6. A guide window 19 is provided in the middle of the mounting base 3, the linkage plate 7, the limiting plate 10 and the guide plate 17.
[0015] A locking pin 20 is provided on one side of the outer cylindrical surface of the mounting base 3 near the insertion block 9. A locking socket 21 matching the locking pin 20 is provided on the outer cylindrical surface of the insertion block 9. One end of the locking pin 20 passes through the mounting base 3 and extends toward the locking socket 21. The mounting base 3 has a mounting block 22 on its outer side near the locking pin 20. The mounting block 22 has a movable groove 23 in the middle that matches the locking pin 20. The locking pin 20 is movably disposed in the movable groove 23. The end of the movable groove 23 away from the locking socket 21 is provided with an ejector spring 24. The ejector spring 24 is connected to the locking pin 20. The locking pin 20 has a control protrusion 25 on one side. The control protrusion 25 extends toward the outer wall of the mounting block 22. The mounting block 22 has a clearance groove 26 that matches the control protrusion 25 near the control protrusion 25. Specifically, when the lens module 2 rotates and the insert 9 moves into the locking position 12, the insert 9 will contact the inclined surface on the locking pin 20, thereby squeezing the locking pin 20 to move towards the mounting groove 6, and at the same time compressing the ejector spring 24. When the locking pin 20 is aligned with the locking socket 21, the ejector spring 24 returns to its original position, driving the locking pin 20 into the locking socket 21 to limit the position of the insert 9.
[0016] It should be noted that both the main body 1 of the tester and the lens module 2 are common models on the market. The changes in this application are only modifications to the connection structure. Those skilled in the art should be able to make reasonable selections and designs based on the actual situation.
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0018] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A lens structure for a spectrometer, comprising a main body of the spectrometer, a lens module, and a connecting assembly, wherein the lens module is mounted on one side of the main body of the spectrometer, and the connecting assembly is mounted between the lens module and the main body of the spectrometer, characterized in that: The connecting assembly includes a mounting base, a dust baffle, and a dust cover. The mounting base has a mounting groove on its side near the lens module. The dust cover fits over the mounting groove, and its top is hinged to the side wall of the tester body. The dust baffle is swayably distributed around the bottom of the mounting groove. A linkage plate is located on the side of the dust baffle away from the bottom of the mounting groove. The linkage plate is driven to connect with the dust baffle. Control protrusions are evenly distributed at the four corners of the linkage plate. A plug-in block, matching the control protrusion, is located near the control protrusion on the lens module. A limiting plate is located at the opening of the mounting groove. A matching insertion hole is located on the limiting plate near the limiting block. A locking position is provided on one side of the insertion hole. The insertion block is connected to the lens module via a connecting post matching the locking position.
2. The lens structure of a spectrometer according to claim 1, characterized in that: The mounting groove has limit posts distributed around its bottom edge. The side wall of the linkage plate has a swing groove that matches the limit posts. The cylindrical surface of the linkage plate is in contact with the groove wall of the mounting groove, and the outer cylindrical surface of the linkage plate slides in contact with the groove wall of the mounting groove.
3. The lens structure of a spectrometer according to claim 1, characterized in that: The dust baffle has a petal-shaped structure. One end of the dust baffle is hinged to the bottom of the mounting groove. The dust baffle and the linkage plate are connected by a linkage rod. One end of the linkage rod is hinged to one end of the dust baffle, and the end of the linkage rod away from the dust baffle is hinged to the linkage plate.
4. The lens structure of a spectrometer according to claim 1, characterized in that: A guide plate is provided between the linkage plate and the limiting plate. A guide groove matching the control protrusion is provided on the guide plate near the control protrusion. The end of the guide groove away from the control protrusion extends along the center direction. The outer cylindrical surface of the guide plate is fixedly connected to the groove wall of the mounting groove. A conduction window is provided in the middle of the mounting base, the linkage plate, the limiting plate and the guide plate.
5. The lens structure of a spectrometer according to claim 1, characterized in that: A locking pin is provided on one side of the outer cylindrical surface of the mounting base near the insertion block. A locking socket matching the locking pin is provided on the outer cylindrical surface of the insertion block. One end of the locking pin extends through the mounting base toward the locking socket.
6. The lens structure of a spectrometer according to claim 5, characterized in that: The mounting base has a mounting block on its outer side near the locking pin. The middle of the mounting block has a movable groove that matches the locking pin. The locking pin is movably disposed in the movable groove. A push-out spring is provided at the end of the movable groove away from the locking socket. The push-out spring is connected to the locking pin. A control protrusion is provided on one side of the locking pin. The control protrusion extends toward the outer wall of the mounting block. The mounting block has a clearance groove that matches the control protrusion near the control protrusion.