An optical filter switching device with adjustable intensity

Abstract

The utility model provides a kind of optical intensity adjustable optical filter switching device, belong to filter production technical field, including support assembly, including base, the support table of rotation connection in base end part, the support rod of fixed connection in support table end part and the connecting column of fixed connection in support table center;Switching assembly, including fixed mounting in the connecting piece of connecting column end part, hinged in the connecting piece end part link, the extension rod of insertion in link end part, the clamping block of fixed connection in the extension rod end part and the filter frame body of clamping in the clamping block end part.The utility model has the beneficial effects of: realize the flexible control of filter in three-dimensional space, can be adapted to the optical path demand of different light source, different detection equipment, expand applicable scene, shorten filter switching time, can be quickly completed filter loading and unloading, without other auxiliary tools, improve the efficiency of multiple filter alternate test.Auxiliary lamp panel provides standard light source, without external device can be completed filter light transmission performance test.

Description

Technical Field

[0001] This utility model belongs to the field of filter manufacturing technology, specifically relating to an adjustable light intensity optical filter switching device. Background Technology

[0002] Optical filters, as core components for controlling light intensity and spectral characteristics, are widely used in fields such as biological imaging, industrial inspection, spectral analysis, and optical communication. Their performance directly determines the imaging quality and testing accuracy of optical systems. In practical applications, it is often necessary to dynamically switch filters with different parameters according to the scene and precisely control the relative position of the filter and the light source / detection equipment to adapt to the diverse needs of light intensity range and optical path.

[0003] Traditional filter switching relies on manual installation / removal or a fixed channel design, resulting in long switching times per cycle. In dynamic scenarios, slow switching speeds can lead to signal loss and reduced experimental data integrity; furthermore, frequent manual operation can introduce positioning errors, increasing light intensity measurement errors. Existing devices mostly support only single-dimensional adjustment, making it difficult to adapt to complex optical paths. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable light intensity optical filter switching device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable intensity optical filter switching device includes,

[0007] The support assembly includes a base, a support platform rotatably connected to the end of the base, a support rod fixedly connected to the end of the support platform, and a connecting column fixedly connected to the center of the support platform.

[0008] The switching assembly includes a connector fixedly installed at the end of the connecting column, a connecting rod hinged to the end of the connector, an extension rod inserted into the end of the connecting rod, a locking block fixedly connected to the end of the extension rod, and a filter frame locked into the end of the locking block. A positioning seat is fixedly connected to the side wall of the support rod, and a positioning block is threadedly connected to the side wall of the connecting rod. The end of the positioning block is inserted into the center of the positioning seat.

[0009] As a preferred embodiment of this utility model, the side wall of the positioning seat is provided with a sliding groove, and the end of the positioning block is provided with a pin hole that cooperates with the sliding groove of the side wall of the positioning seat.

[0010] As a preferred embodiment of this utility model, a fastening bolt is fixedly connected to the side wall of the connecting rod, and the end of the fastening bolt is inserted into the middle of the sliding groove on the side of the extension rod.

[0011] As a preferred embodiment of this utility model, the side wall of the card block is threadedly connected to a handle, and a pressure block is rotatably installed at the end of the handle, with the end of the pressure block being engaged with the side wall of the filter frame.

[0012] As a preferred embodiment of this utility model, a tension spring is fixedly connected to the side wall of the card block, and the other end of the tension spring is fixedly connected to the end side wall of the connecting column.

[0013] As a preferred embodiment of this utility model, the switching assembly further includes an adapter plate fixedly connected to the end of the support rod, a support plate fixedly connected to the end of the adapter plate, and an auxiliary light plate fixedly connected to the end of the support plate, wherein the auxiliary light plate is disposed below the filter frame.

[0014] As a preferred embodiment of this utility model, a support rod is fixedly connected to the bottom of the base, a support leg is inserted into the end of the support rod, and a bolt hole is opened on the side wall of the end of the support leg to cooperate with the side wall of the support rod.

[0015] Compared with existing technologies, the advantages of this invention are as follows: By adjusting the orientation through the rotation of the support platform, adjusting the distance through the extension rod, and switching the position through the rotation of the connecting rod, the filter can be flexibly controlled in three-dimensional space. This allows it to adapt to the optical path requirements of different light sources and testing equipment, expanding its applicable scenarios. It shortens filter switching time, enabling rapid filter loading and unloading without the need for other auxiliary tools, thus improving the efficiency of alternating testing of multiple filters. The auxiliary light panel provides a standard light source, allowing filter transmittance performance testing to be completed without external equipment, making it particularly suitable for rapid on-site verification and simplifying the testing process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention from a downward viewing angle;

[0019] Figure 3 This is a top view of the structure of this utility model;

[0020] Figure 4 This is a side view of the present invention.

[0021] In the diagram: 100, Support assembly; 101, Base; 102, Support platform; 103, Support rod; 104, Connecting column; 105, Support rod; 106, Support leg; 200, Switching assembly; 201, Connector; 202, Connecting rod; 203, Extension rod; 204, Locking block; 205, Filter frame; 206, Positioning seat; 207, Positioning block; 208, Fastening bolt; 209, Handle; 210, Pressure block; 211, Tension spring; 212, Adapter plate; 213, Support plate; 214, Auxiliary light panel. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0025] Reference Figure 1-4 This embodiment of the present invention provides an adjustable light intensity optical filter switching device, comprising:

[0026] The support assembly 100 includes a base 101, a support platform 102 rotatably connected to the end of the base 101, a support rod 103 fixedly connected to the end of the support platform 102, and a connecting column 104 fixedly connected to the center of the support platform 102.

[0027] The switching assembly 200 includes a connector 201 fixedly installed at the end of the connecting column 104, a connecting rod 202 hinged to the end of the connector 201, an extension rod 203 inserted into the end of the connecting rod 202, a locking block 204 fixedly connected to the end of the extension rod 203, and a filter frame 205 locked into the end of the locking block 204. A positioning seat 206 is fixedly connected to the side wall of the support rod 103, and a positioning block 207 is threadedly connected to the side wall of the connecting rod 202. The end of the positioning block 207 is inserted into the center of the positioning seat 206.

[0028] The support assembly 100 provides stable support and an overall attitude adjustment benchmark for the device, ensuring positional accuracy during filter switching. The base 101 serves as the mounting foundation for the entire device, and its end-rotatably connected support platform 102 can rotate 360° around the base axis (with a damping structure, it can be stably positioned after rotation) to adjust the orientation of the filters (to adapt to the orientation of different light sources or detection equipment). The support rod 103 (vertically upward) fixed at the end of the support platform provides lateral support for the switching assembly, and the central connecting column 104 (perpendicular to the support platform) serves as the mounting foundation for the switching assembly 200. The switching assembly 200 is the component that enables rapid filter switching and light intensity adjustment. Through its rotatable and extendable structure, it achieves multi-filter position switching and distance adjustment. The connecting member 201 at the end of the connecting column 104 provides a hinge fulcrum for the connecting rod 202. The connecting rod 202 can rotate around the connecting member, driving the filter frame 205 (used to install optical filters, such as neutral density filters and bandpass filters) to switch positions. The extension rod 203 at the end of the connecting rod 202 can extend and retract along the axis of the connecting rod 202 to adjust the distance between the filter frame and the light source / detection equipment (changing the optical path and assisting in adjusting the light intensity). The locking block 204 (U-shaped groove structure) at the end of the extension rod is used to lock the filter frame. The handle 209 with its side wall threaded connection is rotatably installed with a pressure block 210 (rubber material to avoid scratching the filter). Tightening the handle can drive the pressure block to press against the side wall of the filter frame, realizing the quick installation, removal and stable fixation of the filter. The locking block 204 (U-shaped groove structure) at the end of the extension rod 203 is used to lock the filter frame. The positioning seat 206 (with sliding groove) on the side wall of the support rod 103 cooperates with the positioning block 207 (threaded connection, which can slide along the connecting rod) on the side wall of the connecting rod 202. After the pin hole at the end of the positioning block 207 is aligned with the sliding groove of the positioning seat 206, the pin can be inserted to lock the position of the connecting rod 202 (ensuring that the filter is accurately centered in the optical path).

[0029] Specifically, the side wall of the positioning seat 206 is provided with a sliding groove, and the end of the positioning block 207 is provided with a pin hole that cooperates with the sliding groove of the side wall of the positioning seat 206.

[0030] Furthermore, a fastening bolt 208 is fixedly connected to the side wall of the connecting rod 202, and the end of the fastening bolt 208 is inserted into the middle of the side groove of the extension rod 203.

[0031] The extension rod 203 is locked by the fastening bolt 208 on the side wall of the connecting rod 202. The end of the bolt is inserted into the sliding groove on the side of the extension rod 203, which can maintain the stability of the extension length of the extension rod 203.

[0032] Furthermore, the side wall of the locking block 204 is threaded with a handle 209, and a pressure block 210 is rotatably installed at the end of the handle 209. The end of the pressure block 210 is locked onto the side wall of the filter frame 205.

[0033] The handle 209, which is threaded to the side wall, has a pressure block 210 (made of rubber to avoid scratching the filter) rotatably installed at its end. Tightening the handle can cause the pressure block 210 to press against the side wall of the filter frame 205, thus enabling quick loading and unloading and secure fixing of the filter.

[0034] Preferably, a tension spring 211 is fixedly connected to the side wall of the locking block 204, and the other end of the tension spring 211 is fixedly connected to the end side wall of the connecting post 104.

[0035] Among them, the tension spring 211 (elastic connector) between the locking block 204 and the connecting post 104 provides a reset pull when the connecting rod rotates, which helps the filter frame to stop stably in the preset position (reducing shaking).

[0036] It should be noted that the switching assembly 200 also includes an adapter plate 212 fixedly connected to the end of the support rod 103, a support plate 213 fixedly connected to the end of the adapter plate 212, and an auxiliary light plate 214 fixedly connected to the end of the support plate 213. The auxiliary light plate 214 is located below the filter frame 205.

[0037] The adapter plate 212 and support plate 213 at the end of the support rod 103 fix the auxiliary light plate 214 (built-in light source). The light plate is located below the filter frame and can provide a standard light source for testing the light transmission effect (such as light intensity attenuation rate) of different filters, simplifying the testing process.

[0038] Preferably, a support rod 105 is fixedly connected to the bottom of the base 101, and a support leg 106 is inserted into the end of the support rod 105. The side wall of the end of the support leg 106 is provided with bolt holes that cooperate with the side wall of the support rod 105.

[0039] The support rod 105 works in conjunction with the support leg 106 to change the overall height of the device by adjusting the support leg 106 (the adjustment range is determined by the length of the support rod and the support leg), thus adapting to light sources or detection platforms of different heights (such as the optical path height of microscopes and spectrometers).

[0040] During use, adjust the insertion depth of the support leg 106 into the support rod 105 according to the height of the light source or detection equipment, so that the center of the filter frame 205 is aligned with the optical path height, and tighten the bolts in the bolt holes of the support leg to lock the height. Rotate the support platform 102 to adjust the orientation of the filter frame (e.g., align it with the incident direction of the light source). The damping structure of the support platform ensures stability without wobbling after rotation.

[0041] Place the target optical filter into the filter housing 205, tighten the handle 209, and drive the pressure block 210 to press against the side wall of the filter housing, ensuring the filter is stable and does not shift. Loosen the positioning block 207, rotate the connecting rod 202 around the connector 201, and move the filter housing from the standby position to the center of the optical path; during this process, the tension spring 211 provides tension to assist the connecting rod to rotate smoothly and avoid excessive swaying. Slide the positioning block 207 so that its end pin hole aligns with the slide groove of the positioning seat 206, insert the pin to lock the connecting rod position, and ensure that the filter does not shift during operation.

[0042] To adjust the light intensity (by changing the distance between the filter and the light source), loosen the fastening bolt 208, push and pull the extension rod 203 along the connecting rod 202 to extend and retract, adjust to the target distance, and then tighten the bolt to lock. Distance changes can assist in fine-tuning the light intensity. To test the filter effect, turn on the auxiliary light panel 214. The light source passes through the filter and is projected onto the testing equipment. Directly read the light intensity data to determine if the filter meets the requirements. When replacing the filter, pull out the positioning pin, rotate the connecting rod in the opposite direction to move the filter frame to the spare position, loosen the handle 209 to remove the old filter, install the new filter, and then rotate it to the working position to lock. After operation, move the filter frame to the spare position, loosen the leg bolts, adjust the device to the storage height, and complete the reset.

[0043] In summary, by rotating the support platform to adjust its orientation, extending the extension rod to adjust its distance, and rotating the connecting rod to switch its position, the filter can be flexibly controlled in three-dimensional space. This allows it to adapt to the optical path requirements of different light sources (such as lasers and LEDs) and different testing equipment (such as spectrometers and microscopes), expanding its applicable scenarios. The structure of connecting rod rotation and positioning block locking shortens filter switching time; the quick-locking design of the handle and pressure block allows for rapid filter loading and unloading without other auxiliary tools, improving the efficiency of alternating testing of multiple filters. The auxiliary light panel provides a standard light source, enabling filter transmittance performance testing without external equipment, making it particularly suitable for rapid on-site verification and simplifying the testing process.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable light intensity optical filter switching device, characterized in that: include, The support assembly (100) includes a base (101), a support platform (102) rotatably connected to the end of the base (101), a support rod (103) fixedly connected to the end of the support platform (102), and a connecting column (104) fixedly connected to the center of the support platform (102). The switching assembly (200) includes a connector (201) fixedly installed at the end of the connecting column (104), a connecting rod (202) hinged to the end of the connector (201), an extension rod (203) inserted into the end of the connecting rod (202), a locking block (204) fixedly connected to the end of the extension rod (203), and a filter frame (205) locked into the end of the locking block (204). A positioning seat (206) is fixedly connected to the side wall of the support rod (103), and a positioning block (207) is threadedly connected to the side wall of the connecting rod (202). The end of the positioning block (207) is inserted into the center of the positioning seat (206).

2. The adjustable intensity optical filter switching device according to claim 1, characterized in that: The positioning seat (206) has a sliding groove on its side wall, and the positioning block (207) has a pin hole at its end that cooperates with the sliding groove on the side wall of the positioning seat (206).

3. The adjustable intensity optical filter switching device according to claim 2, characterized in that: The connecting rod (202) is fixedly connected to a fastening bolt (208) on its side wall, and the end of the fastening bolt (208) is inserted into the middle of the side groove of the extension rod (203).

4. The adjustable intensity optical filter switching device according to claim 3, characterized in that: The side wall of the card block (204) is threaded with a handle (209), and a pressure block (210) is rotatably installed at the end of the handle (209). The end of the pressure block (210) is engaged with the side wall of the filter frame (205).

5. The adjustable intensity optical filter switching device according to claim 4, characterized in that: A tension spring (211) is fixedly connected to the side wall of the card block (204), and the other end of the tension spring (211) is fixedly connected to the end side wall of the connecting column (104).

6. The adjustable intensity optical filter switching device according to claim 5, characterized in that: The switching assembly (200) further includes an adapter plate (212) fixedly connected to the end of the support rod (103), a support plate (213) fixedly connected to the end of the adapter plate (212), and an auxiliary light plate (214) fixedly connected to the end of the support plate (213). The auxiliary light plate (214) is located below the filter frame (205).

7. The adjustable intensity optical filter switching device according to claim 6, characterized in that: The base (101) is fixedly connected to a support rod (105) at the bottom. A support leg (106) is inserted into the end of the support rod (105). The side wall of the end of the support leg (106) is provided with bolt holes that cooperate with the side wall of the support rod (105).

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