A combined filter

Abstract

The utility model relates to the technical field of optical filter discloses a combined optical filter disc, including rotating shaft, a plurality of piece mechanism, a plurality of suction intermediate strips and a plurality of carding mechanism, a plurality of piece mechanism all include glass substrate, a plurality of suction intermediate strips all include horizontal bar. In the utility model, the horizontal bar design with opposite magnetic layer realizes the stable adsorption and convenient separation between different characteristic optical filter discs, and the adjacent optical filter disc is fixed by the cooperation of the hemispherical lug and the hemispherical groove on the horizontal bar, the convenience of assembly is enhanced, in addition, the handle design of the outer end of the horizontal bar enables the user to easily carry out the quick switching and adjustment of the optical filter disc, improves the flexibility and work efficiency of operation. The cooperation of spring damper and buffer pad ensures the stable fixation of the optical filter disc on the rotating shaft, simplifies the maintenance process, and further optimizes the use experience.

Description

Technical Field

[0001] This utility model relates to the field of optical filter technology, and in particular to a combined optical filter. Background Technology

[0002] Optical filters are created by coating one or more layers of dielectric or metallic films onto optical elements or substrates to alter the transmission characteristics of light. These coatings utilize phenomena such as transmission, absorption, scattering, reflection, polarization, and phase changes of light waves within the thin film to design and manufacture filters that meet scientific and engineering needs. For example, a red filter allows only red light to pass through, while blocking other colors. Filters have a wide range of applications, from anti-reflective coatings in eyeglasses to high-reflective coatings in car rearview mirrors, and are key components in business projectors and medical testing equipment. Manufacturing filters is a technically complex engineering process involving multiple specialized technical fields, including vacuum technology, film thickness measurement technology, computer-aided design, and optical property testing.

[0003] A search revealed an existing patent (publication number: CN216526453U) that discloses a "fan-shaped combined filter, comprising a filter body, a main adhesive on the lower surface of the filter body, a transparent plate bonded to the lower surface of the main adhesive, a protrusion fixed to one side of the bottom of the transparent plate, and a chamfered arc surface at the corner of the protrusion; a groove formed on the upper surface of the transparent plate; the filter body comprising a glass substrate, a secondary adhesive sprayed on the upper surface of the glass substrate, a front polarizer mounted on the upper surface of the secondary adhesive, an upper protective glass layer mounted on the upper surface of the front polarizer, and an upper cutoff film mounted on the upper surface of the upper protective glass layer. This invention not only avoids assembly contamination of the filter and improves the ease of assembly, but also improves the light transmittance and structural strength of the filter, meeting the requirements of high-precision equipment."

[0004] In the process of developing this application, the inventors discovered the following problems with the prior art: Although the aforementioned comparative patent provides a fan-shaped combined filter by setting components such as a filter body, a transparent plate, protrusions, and grooves, and although the filters can be combined by pressing the protrusions into the grooves, the separation process requires holding the edges of the filter to separate the protrusions and grooves, thus making it difficult to meet the need for convenient disassembly and separation of multiple filters used in combination. Therefore, those skilled in the art have provided a combined filter to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a modular filter. This filter utilizes a horizontal bar design with opposing magnetic layers to achieve stable adsorption and easy separation between filters with different properties. Simultaneously, the hemispherical protrusions and grooves on the horizontal bars cooperate to fix adjacent filters, enhancing assembly convenience. Furthermore, the handle design at the outer end of the horizontal bars allows users to easily and quickly switch and adjust filters, improving operational flexibility and work efficiency. The combination of spring dampers and buffer pads ensures stable fixation of the filter on the rotating shaft, simplifying maintenance and further optimizing the user experience.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a combined filter, comprising a rotating shaft, multiple loading mechanisms, multiple suction intermediate strips, and multiple holding mechanisms, wherein each of the multiple loading mechanisms comprises a glass substrate, each of the multiple suction intermediate strips comprises a horizontal strip, and each of the multiple holding mechanisms comprises six spring dampers;

[0007] The lower ends of multiple glass substrates are respectively fixed to the upper ends of multiple horizontal bars. A fully transparent glass sheet is fixedly disposed at the lower end of each of the multiple horizontal bars. The uppermost of the six spring dampers in each of the clamping mechanisms is fixedly disposed at the middle position of the lower end of the glass substrate directly above. The lowermost of the six spring dampers in each of the clamping mechanisms is fixedly disposed at the middle position of the upper end of the fully transparent glass sheet directly below. The four spring dampers on both sides of each of the six spring dampers in the clamping mechanism are fixed in pairs, with their outer ends symmetrically disposed on the inner sides of the two horizontal bars on both sides.

[0008] Furthermore, a front polarizer is fixedly disposed on the rear end of the plurality of glass substrates, a protective glass layer is fixedly disposed on the rear end of the plurality of front polarizers, and a stop film is fixedly disposed on the rear end of the plurality of protective glass layers.

[0009] Furthermore, a rear polarizer is fixedly disposed on the front end of each of the plurality of glass substrates, and an antireflection film is fixedly disposed on the front end of each of the plurality of rear polarizers.

[0010] Furthermore, the two horizontal strips at the lower end of each glass substrate are arranged symmetrically, and two hemispherical grooves are symmetrically formed at the middle position of the front end of each of the multiple horizontal strips, and two hemispherical protrusions are fixedly arranged symmetrically at the middle position of the rear end of each of the multiple horizontal strips.

[0011] Furthermore, the dimensions of the plurality of hemispherical grooves respectively match the dimensions of the plurality of hemispherical protrusions.

[0012] Furthermore, a magnetic layer is fixedly provided at the front and rear ends of the plurality of horizontal bars near the outer side, and a handle is fixedly provided on the outer side of the plurality of horizontal bars.

[0013] Furthermore, the multiple magnetic layers fixedly disposed at the front and rear ends of the multiple horizontal bars have opposite magnetic properties.

[0014] Furthermore, each of the multiple spring dampers has a buffer pad fixedly installed at its inner end, and the multiple buffer pads are respectively attached to the rotating shaft body.

[0015] This utility model has the following beneficial effects:

[0016] 1. The present invention proposes a combined filter, which uses multiple horizontal strips with opposite magnetic layers at the front and rear ends to stably attract filters with different properties used at the same time. The adjacent filters are well fixed by the hemispherical protrusions and hemispherical grooves that are fixed at the front and rear ends of the multiple horizontal strips. In addition, the opposite magnetic design of the magnetic layers makes it easy for each filter to be attracted and separated, which greatly improves the convenience of use and assembly.

[0017] 2. This utility model proposes a combined optical filter. The filter features handles fixed to the outer ends of multiple horizontal bars, allowing users to easily grasp and separate temporarily unused filters from adjacent filters and rotate them to move the lower, fully transparent glass pane to the top, enabling rapid switching and adjustment. This provides operational flexibility, allowing users to quickly select the required filter based on actual needs, effectively improving work efficiency. Furthermore, the combined use of spring dampers and buffer pads ensures stable fixation of the filter on the rotation axis. Users can easily rotate the lower, fully transparent glass pane of unused filters to the top by grasping the handles, avoiding direct contact with the filter surface and reducing maintenance workload. Attached Figure Description

[0018] Figure 1 This is an isometric schematic diagram of the present invention;

[0019] Figure 2 This is an isometric view of the present invention as seen from the rear.

[0020] Figure 3 This is an isometric side sectional view of an upper sheet mechanism, a fully transparent lower glass sheet, a suction middle strip, and a holding mechanism of the present invention.

[0021] Figure 4 For the present utility model Figure 3 An enlarged schematic diagram of the structure at point A.

[0022] Legend:

[0023] 1. Rotating shaft; 2. Loading mechanism; 3. Lower sheet of fully transparent glass; 4. Attracting intermediate strip; 5. Holding mechanism; 201. Glass substrate; 202. Front polarizer; 203. Protective glass layer; 204. Cut-off film; 205. Rear polarizer; 206. Anti-reflective coating; 401. Hemispherical bump; 402. Hemispherical groove; 403. Magnetic layer; 404. Handle; 405. Horizontal bar; 501. Spring damper; 502. Buffer pad. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An embodiment of this utility model is provided: a combined filter, including a rotating shaft 1, multiple loading mechanisms 2, multiple suction intermediate strips 4 and multiple holding mechanisms 5. Each of the multiple loading mechanisms 2 includes a glass substrate 201, each of the multiple suction intermediate strips 4 includes a horizontal strip 405, and each of the multiple holding mechanisms 5 includes six spring dampers 501.

[0026] The lower ends of multiple glass substrates 201 are respectively fixed to the upper ends of multiple horizontal bars 405. A fully transparent glass sheet 3 is fixedly installed at the lower end of each of the multiple horizontal bars 405. The upper end of one of the six spring dampers 501 in each clamping mechanism 5 is fixedly installed at the middle position of the lower end of the glass substrate 201 directly above. The lower end of one of the six spring dampers 501 in each clamping mechanism 5 is fixedly installed at the middle position of the upper end of the fully transparent glass sheet 3 directly below. The four spring dampers 501 on both sides of each clamping mechanism 5 are fixed in pairs, with their outer ends fixed symmetrically to the inner side of the two horizontal bars 405 on both sides.

[0027] Specifically, the horizontal bar 405 in the suction intermediate bar 4 provides a good mounting position for the glass substrate 201 and the fully transparent glass lower sheet 3 in the upper sheet mechanism 2, and the glass substrate 201, the horizontal bar 405 in the suction intermediate bar 4, and the fully transparent glass lower sheet 3 in the upper sheet mechanism 2 provide a good mounting position for the spring damper 501.

[0028] Reference Figure 4Multiple glass substrates 201 are covered and fixedly disposed with front polarizers 202 at their rear ends, multiple front polarizers 202 are covered and fixedly disposed with protective glass layers 203 at their rear ends, multiple protective glass layers 203 are covered and fixedly disposed with stop film 204 at their rear ends, multiple glass substrates 201 are covered and fixedly disposed with rear polarizers 205 at their front ends, and multiple rear polarizers 205 are covered and fixedly disposed with antireflective film 206 at their front ends.

[0029] Specifically, the cut-off film 204 and the anti-reflection film 206 redistribute the energy of the reflected light and transmitted light respectively, thereby improving the light transmittance of the filter. The front polarizer 202 and the rear polarizer 205 prevent halos, flares or shadows from appearing at the imaging edge, thereby improving the accuracy of the filter. The protective glass layer 203 improves the light transmittance of the filter without affecting its light transmittance.

[0030] Reference Figure 2 , Figure 3 and Figure 4 Two horizontal bars 405 at the lower end of each glass substrate 201 are arranged symmetrically. Two hemispherical grooves 402 are symmetrically opened at the middle of the front end of each of the multiple horizontal bars 405. Two hemispherical protrusions 401 are fixedly arranged symmetrically at the middle of the rear end of each of the multiple horizontal bars 405. The size of the multiple hemispherical grooves 402 matches the size of the multiple hemispherical protrusions 401. Magnetic layers 403 are fixedly arranged near the outer side of the front and rear ends of each of the multiple horizontal bars 405. Handles 404 are fixedly arranged on the outer side of each of the multiple horizontal bars 405. The magnetic layers 403 fixedly arranged at the front and rear ends of each of the multiple horizontal bars 405 have opposite magnetic properties. Buffer pads 502 are fixedly arranged at the inner end of each of the multiple spring dampers 501. The multiple buffer pads 502 are respectively attached to the shaft of the rotating shaft 1.

[0031] Specifically, depending on actual usage needs, users may sequentially attach multiple filters with different characteristics to the shaft of rotating shaft 1. The hemispherical protrusion 401 at the rear end of the crossbar 405 of each filter is well engaged in the hemispherical groove 402 at the front end of the crossbar 405 of the adjacent filter. The magnetic layers 403 with opposite magnetic properties attached to the front and rear ends of the crossbars 405 of adjacent filters attract the adjacent filters together well. There is considerable damping between the buffer pad 502 and the shaft of rotating shaft 1. The spring damper 501 presses the buffer pad 502 against the shaft of rotating shaft 1 in real time to ensure that the filter will not easily slide along rotating shaft 1 without human intervention.

[0032] When a filter is not in use for the time being, it can be separated from the filters in front and behind by pinching the handle 404. Then, the unused filter is rotated half a turn, that is, the lower transparent glass 3 is rotated to the top. Then, all the filters are pressed together again. The filter can be temporarily not used without removing it.

[0033] Working principle: Depending on actual usage needs, users may sequentially attach multiple filters with different characteristics to the shaft of rotating shaft 1. The hemispherical protrusion 401 at the rear end of the crossbar 405 of each filter is well engaged in the hemispherical groove 402 at the front end of the crossbar 405 of the adjacent filter. The magnetic layers 403 with opposite magnetic properties attached to the front and rear ends of the crossbars 405 of the adjacent filters attract the adjacent filters together well. There is considerable damping between the buffer pad 502 and the shaft of rotating shaft 1. The spring damper 501 presses the buffer pad 502 against the shaft of rotating shaft 1 in real time, ensuring that the filter will not easily slide along the rotating shaft 1 without human intervention.

[0034] Secondly, the cut-off film 204 and the anti-reflection film 206 redistribute the energy of the reflected light and transmitted light respectively, thereby improving the light transmittance of the filter. The front polarizer 202 and the rear polarizer 205 prevent halos, flares or shadows from appearing at the imaging edge, thereby improving the accuracy of the filter. The protective glass layer 203 improves the light transmittance of the filter without affecting its light transmittance.

[0035] Finally, when a filter is not in use for the time being, it can be separated from the filters in front and behind by pinching the handle 404. Then, the unused filter can be rotated half a turn, that is, the lower transparent glass 3 can be rotated to the top. Then, all the filters can be pressed together again. The filter can be temporarily not used without removing it.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined optical filter, comprising a rotating shaft (1), multiple loading mechanisms (2), multiple suction intermediate strips (4), and multiple holding mechanisms (5), characterized in that: Each of the multiple loading mechanisms (2) includes a glass substrate (201), each of the multiple suction intermediate strips (4) includes a crossbar (405), and each of the multiple holding mechanisms (5) includes six spring dampers (501). The lower ends of multiple glass substrates (201) are respectively fixed to the upper ends of multiple horizontal bars (405). A fully transparent glass lower sheet (3) is fixedly provided at the lower end of each of the multiple horizontal bars (405). The upper end of one of the six spring dampers (501) in each of the clamping mechanisms (5) is fixedly provided at the middle position of the lower end of the glass substrate (201) directly above. The lower end of one of the six spring dampers (501) in each of the clamping mechanisms (5) is fixedly provided at the middle position of the upper end of the fully transparent glass lower sheet (3) directly below. The four spring dampers (501) on both sides of each of the six spring dampers (501) in each of the clamping mechanisms (5) are fixed in pairs, with their outer ends fixedly and symmetrically to the inner side of the two horizontal bars (405) on both sides.

2. The combined filter according to claim 1, characterized in that: A front polarizer (202) is fixedly disposed on the rear end of a plurality of glass substrates (201), a protective glass layer (203) is fixedly disposed on the rear end of a plurality of front polarizers (202), and a stop film (204) is fixedly disposed on the rear end of a plurality of protective glass layers (203).

3. A combined optical filter according to claim 1, characterized in that: A rear polarizer (205) is fixedly disposed on the front end of a plurality of glass substrates (201), and an anti-reflection film (206) is fixedly disposed on the front end of a plurality of rear polarizers (205).

4. A combined filter according to claim 1, characterized in that: The two horizontal strips (405) at the lower end of each glass substrate (201) are arranged symmetrically. Two hemispherical grooves (402) are opened symmetrically at the middle position of the front end of each of the multiple horizontal strips (405). Two hemispherical protrusions (401) are fixedly arranged symmetrically at the middle position of the rear end of each of the multiple horizontal strips (405).

5. A combined optical filter according to claim 4, characterized in that: The dimensions of the plurality of hemispherical grooves (402) respectively match the dimensions of the plurality of hemispherical protrusions (401).

6. A combined optical filter according to claim 1, characterized in that: A magnetic layer (403) is fixedly provided at the front end and rear end near the outer side of the plurality of horizontal bars (405), and a handle (404) is fixedly provided on the outer side of the plurality of horizontal bars (405).

7. A combined filter according to claim 6, characterized in that: Multiple magnetic layers (403) fixedly disposed at the front and rear ends of the multiple horizontal bars (405) have opposite magnetic properties.

8. A combined optical filter according to claim 1, characterized in that: Each of the multiple spring dampers (501) has a buffer pad (502) fixedly installed at its inner end, and the multiple buffer pads (502) are respectively attached to the shaft of the rotating shaft (1).

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