Long-wave-pass optical filter structure

Abstract

The utility model discloses a long wave pass optical filter structure, which comprises an installation cylinder, an optical filter body is installed on the inner wall of the installation cylinder through a fixing assembly, and a plurality of limiting assemblies are evenly installed on the top wall of the installation cylinder. According to the long-wave-pass optical filter structure, a movable rubber ring drives a positioning rod to enter a mounting cylinder, so that the rubber ring enters the inner wall of a placement groove, the positioning rod enters the inner wall of a positioning opening to be placed, and meanwhile, a limiting block and a rotating seat are overturned outwards through a convex block to drive a rotating shaft to rotate in the inner wall; the limiting blocks enter the inner walls of the limiting grooves, so that the magnets attract and fix the limiting blocks for limiting, the X-ray plate body can be rapidly installed and fixed, the installation mode is simple and rapid, the X-ray plate body does not move after installation is completed, and the service life of the X-ray plate body is prolonged. And after fixation is completed, the device is also protected by external force factors and does not fall off, and the overall installation firmness is sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of optics, in particular to a long-wave pass filter structure. Background Art

[0002] A longwave pass filter is an optical device that can transmit long-wavelength light and block short-wavelength light. Its principle is to utilize the interference and reflection phenomena of light so that only light of a specific wavelength can pass through. It is usually composed of a multilayer reflective film and a glass substrate. Longwave pass filters are widely used in microscopes, astronomy, cameras and other fields. In microscopes, they are often used to separate and observe cell nuclei and cytoplasm, as well as to separate and observe various organelles. In astronomy, they can be used to separate and observe starlight of different wavelengths to study the structure and composition of celestial bodies. In cameras, they can be used to control color tones and prevent ultraviolet pollution.

[0003] The patent with patent number CN202222194177.2 discloses a germanium-based infrared long-wave pass filter, including a mounting plate, both sides of the surface of the mounting plate are provided with slide grooves, the center of the surface of the mounting plate is provided with a through hole, and both sides of the top of the mounting plate are provided with annular clamping plates, which have a reasonable structure. The utility model is provided with a protective film mechanism, and the protective film mechanism is set on the surface of the filter. The protective film mechanism has multiple layers of protective films and is attached to the surface of the filter, so as to achieve safety protection treatment of the filter, avoid the germanium-based infrared long-wave pass filter from being damaged by water stains or water vapor in daily life, and avoid the germanium-based infrared long-wave pass filter from being scratched by friction, resulting in blurred mirror surface, and effectively improve the durability of the germanium-based infrared long-wave pass filter.

[0004] The above device has certain shortcomings when in use: the above device clamps and fixes the filter through an annular clamp and a spring. When the filter is forced to move to one side, it drives the annular clamp, slider, and limit column to compress the spring, which may cause the filter to fall off. The overall clamping and fixing is not stable enough.

[0005] Therefore, the utility model provides a long-wave pass filter structure to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a long-wave pass filter structure to solve the above problems.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a long-wave filter structure, including a mounting tube, an optical sheet body is mounted on the inner wall of the mounting tube through a fixing assembly, a plurality of stopper assemblies are evenly mounted on the top wall of the mounting tube, a first protective film is mounted on the top wall of the optical sheet body, a wear-resistant layer is mounted on the bottom wall of the optical sheet body, and a second protective film is mounted on the bottom wall of the wear-resistant layer;

[0008] The fixing assembly includes a rubber ring, a placement groove is provided on the inner bottom wall of the mounting tube, a plurality of positioning openings are evenly provided on the inner wall of the placement groove, a plurality of positioning rods are fixedly connected to the bottom wall of the rubber ring and the positions corresponding to the positioning openings, a shearing thread is provided on the inner wall of the mounting tube, an abutment ring is provided on the inner wall of the mounting tube, a stretching thread is provided on the outer wall of the abutment ring, and a plurality of operating openings are evenly provided on the inner wall of the abutment ring.

[0009] Through the above technical solution, by setting the fixing components, the optical sheet body can be quickly installed and fixed, the installation method is simple and convenient, and after the fixation is completed, the stability of the optical sheet body will not fall off or shake when touched by external forces.

[0010] Furthermore, the inner wall of the rubber ring is fixedly connected to the outer wall of the optical sheet body, the outer wall of the rubber ring is fitted with the inner wall of the placement groove, the outer walls of the positioning rods are fitted with the corresponding inner walls of the positioning ports, the stretching thread and the shearing thread are screwed together, the bottom wall of the abutment ring is abutted with the top wall of the rubber ring, and the top wall of the abutment ring is rotatably connected to the limit assembly.

[0011] Through the above technical solution, the rubber ring and the flexible structure of the optical sheet body can prevent damage caused by direct rigid contact with components when installing the optical sheet body.

[0012] Furthermore, the limiting assembly includes a limiting block, the outer wall of the limiting block is fixedly connected with a rotating seat, the top wall of the abutting ring is provided with a mounting groove, and the outer wall of the rotating seat is rotatably installed in the inner wall of the mounting groove through a rotating shaft.

[0013] Through the above technical solution, the rotating seat is rotatably installed in the inner wall of the installation groove, and drives the limit block to rotate when rotating.

[0014] Furthermore, a protrusion is fixedly connected to the outer wall of the limit block.

[0015] Through the above technical solution, when limiting is required, the limiting block can be rotated by operating the convex block.

[0016] Furthermore, a limiting groove is provided on the top wall of the installation cylinder at a position corresponding to the installation groove, a groove is provided on the bottom wall of the limiting groove, and a magnet is fixedly connected to the inner wall of the groove.

[0017] Through the above technical solution, the limit block is adsorbed and fixed by a magnet to prevent the limit block from moving in the inner wall of the limit groove.

[0018] Furthermore, the outer wall of the limiting block is in contact with the inner wall of the limiting groove, the rotating seat is made of metal, and the rotating seat is fixed by adsorption of a magnet.

[0019] Through the above technical solution, the outer wall of the limit block fits with the inner wall of the limit groove, which can prevent the limit block from moving.

[0020] Furthermore, the first protective film and the second protective film are both TPU film layers and made of polyurethane, and the wear-resistant layer is made of polycarbonate.

[0021] Through the above technical solution, the exterior of the optical sheet body can be protected, thereby extending its service life and preventing it from being scratched during installation and use.

[0022] Beneficial Effects

[0023] The utility model provides a long-wave filter structure. Compared with the prior art, it has the following beneficial effects:

[0024] (1) The long-wave filter structure drives the positioning rod to be placed into the interior of the installation tube through the movable rubber ring, so that the rubber ring enters the inner wall of the placement groove, and the positioning rod enters the inner wall of the positioning port and is placed, and then the abutment ring is rotated to enter the interior of the installation tube, so that the stretching thread line and the shearing thread line are screwed and fixed to each other, and at the same time, the limit block and the rotating seat are turned outward by the convex block to drive the rotating shaft to rotate in the inner wall, so that the limit block enters the inner wall of the limit groove, so that the magnet adsorbs and fixes the limit block to limit the position, so that the optical sheet body can be quickly installed and fixed. The installation method is simple and fast, and after the installation is completed, the optical sheet body will not move. After the fixation is completed, it is also protected from external forces and will not fall off. The overall installation is firm enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0026] Figure 2 It is the front view of the internal structure of the utility model;

[0027] Figure 3 It is an exploded view of the internal structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the internal structure of the optical sheet body of the utility model.

[0029] In the figure, 1, mounting tube; 2, optical sheet body; 21, first protective film; 22, wear-resistant layer; 23, second protective film; 3, fixing assembly; 31, rubber ring; 32, placement groove; 33, abutment ring; 34, operation port; 35, positioning port; 36, positioning rod; 37, stretching thread; 38, shearing thread; 4, limiting assembly; 41, limiting block; 42, protrusion; 43, rotating seat; 44, mounting groove; 45, magnet; 46, limiting groove; 47, groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] See also Figure 1-4 A long-wave filter structure includes a mounting tube 1, an optical sheet body 2 is mounted on the inner wall of the mounting tube 1 through a fixing assembly 3, a plurality of stop assemblies 4 are evenly mounted on the top wall of the mounting tube 1, a first protective film 21 is mounted on the top wall of the optical sheet body 2, a wear-resistant layer 22 is mounted on the bottom wall of the optical sheet body 2, and a second protective film 23 is mounted on the bottom wall of the wear-resistant layer 22;

[0033] The fixing assembly 3 includes a rubber ring 31, a placement groove 32 is provided on the inner bottom wall of the installation tube 1, a plurality of positioning holes 35 are evenly provided on the inner wall of the placement groove 32, a plurality of positioning rods 36 are fixedly connected to the bottom wall of the rubber ring 31 and the positions corresponding to the positioning holes 35, a shearing thread line 38 is provided on the inner wall of the installation tube 1, an abutting ring 33 is provided on the inner wall of the installation tube 1, a stretching thread line 37 is provided on the outer wall of the abutting ring 33, and a plurality of operating holes 34 are evenly provided on the inner wall of the abutting ring 33;

[0034] In the embodiment of the utility model, the purpose of this arrangement is that the setting of the fixing component 3 can quickly install and fix the optical sheet body 2. After the installation is completed, the optical sheet body 2 is firm enough and will not fall off when shaken externally. It is also convenient to remove and replace when necessary. It has high practicality when in use. In addition, through the setting of the first protective film 21, the wear-resistant layer 22 and the second protective film 23, the optical sheet body 2 can be protected as a whole to prevent the optical sheet body 2 from being scratched during use or installation, thereby extending its service life.

[0035] Embodiment 2:

[0036] See also Figure 1-4This embodiment provides a technical solution based on the first embodiment: the inner wall of the rubber ring 31 is fixedly connected to the outer wall of the optical sheet body 2, the outer wall of the rubber ring 31 is fitted with the inner wall of the placement groove 32, the outer walls of the positioning rods 36 are fitted with the inner walls of the corresponding positioning ports 35, the stretching thread 37 and the shearing thread 38 are screwed together, the bottom wall of the abutting ring 33 is abutted with the top wall of the rubber ring 31, the top wall of the abutting ring 33 is rotatably connected to the limiting assembly 4, the limiting assembly 4 includes a limiting block 41, the outer wall of the limiting block 41 is fixedly connected with a rotating seat 43, and the top wall of the abutting ring 33 is provided with an installation groove 44, The outer wall of the rotating seat 43 is rotatably installed in the inner wall of the installation groove 44 through a rotating shaft, the outer wall of the limit block 41 is fixedly connected with a protrusion 42, the top wall of the installation tube 1 and the position corresponding to the installation groove 44 are provided with a limit groove 46, the bottom wall of the limit groove 46 is provided with a groove 47, the inner wall of the groove 47 is fixedly connected with a magnet 45, the outer wall of the limit block 41 is fitted with the inner wall of the limit groove 46, the rotating seat 43 is made of metal material, and the rotating seat 43 is adsorbed and fixed by the magnet 45, the first protective film 21 and the second protective film 23 are both TPU film layers and made of polyurethane, and the wear-resistant layer 22 is made of polycarbonate;

[0037] In the embodiment of the utility model, the purpose of this arrangement is that the setting of the limit component 4 can limit the fixing component 3 to prevent rotation after the fixing component 3 fixes the optical sheet body 2, thereby preventing the optical sheet body 2 from rotating and affecting the stability. At the same time, when it needs to be dismantled, it can also quickly escape from the limit state, which is more convenient to use.

[0038] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] During operation, when installing and placing the optical sheet body 2, first, the movable rubber ring 31 can be used to drive the positioning rod 36 to be placed inside the installation tube 1, so that the rubber ring 31 enters the inner wall of the placement groove 32, and the positioning rod 36 enters the inner wall of the positioning port 35 and is placed, and then the abutment ring 33 is rotated to enter the interior of the installation tube 1, so that the stretching thread 37 and the shearing thread 38 are screwed and fixed to each other, and at the same time, the limit block 41 and the rotating seat 43 are turned outward by the protrusion 42 to drive the rotating shaft to rotate in the inner wall of the installation groove 44, so that the limit block 41 enters the inner wall of the limit groove 46, so that the magnet 45 adsorbs and fixes the limit block 41 for limiting, thereby limiting the abutment ring 33 to prevent rotation, and when the optical sheet body 2 needs to be removed and replaced, it can be dialed upward. The movable protrusion 42 then drives the limit block 41 and the rotating seat 43 to rotate, so that the limit block 41 disengages from the limit groove 46, and the magnet 45 disengages from the adsorption state with the limit block 41, and the rotating seat 43 rotates in the inner wall of the installation groove 44, and drives the abutment ring 33 to rotate through the operating port 34, thereby stretching the thread line 37 and the shear thread line 38 to disengage from the threaded state, and the abutment ring 33 is taken out from the inside of the installation tube 1, and then the movable rubber ring 31 can drive the optical sheet body 2 to disengage from the placement groove 32, and the positioning rod 36 disengages from the inner wall of the positioning port 35, thereby completing the removal of the optical sheet body 2, and the first protective film 21, the wear-resistant layer 22 and the second protective film 23 are set, so that the optical sheet body 2 has good protection to prevent scratches during installation and use, thereby extending the service life of the optical sheet body 2.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A long wave pass filter structure, comprising a mounting tube (1), characterized in that: The inner wall of the installation tube (1) is mounted with an optical sheet body (2) via a fixing assembly (3); a plurality of stop assemblies (4) are evenly mounted on the top wall of the installation tube (1); a first protective film (21) is mounted on the top wall of the optical sheet body (2); a wear-resistant layer (22) is mounted on the bottom wall of the optical sheet body (2); and a second protective film (23) is mounted on the bottom wall of the wear-resistant layer (22); The fixing assembly (3) comprises a rubber ring (31), the inner bottom wall of the installation tube (1) is provided with a placement groove (32), the inner wall of the placement groove (32) is evenly provided with a plurality of positioning openings (35), the bottom wall of the rubber ring (31) and the positions corresponding to the positioning openings (35) are fixedly connected with a plurality of positioning rods (36), the inner wall of the installation tube (1) is provided with a shearing thread (38), the inner wall of the installation tube (1) is provided with an abutment ring (33), the outer wall of the abutment ring (33) is provided with a stretching thread (37), and the inner wall of the abutment ring (33) is evenly provided with a plurality of operation openings (34).

2. A long-wave pass filter structure according to claim 1, characterized in that: The inner wall of the rubber ring (31) is fixedly connected to the outer wall of the optical sheet body (2), the outer wall of the rubber ring (31) is in contact with the inner wall of the placement groove (32), the outer walls of the positioning rods (36) are in contact with the inner walls of the corresponding positioning openings (35), the stretching thread (37) and the shearing thread (38) are screwed together, the bottom wall of the abutment ring (33) is in contact with the top wall of the rubber ring (31), and the top wall of the abutment ring (33) is rotatably connected to the limit assembly (4).

3. The long-wave pass filter structure according to claim 1, characterized in that: The limiting assembly (4) comprises a limiting block (41), the outer wall of the limiting block (41) is fixedly connected to a rotating seat (43), the top wall of the abutting ring (33) is provided with a mounting groove (44), and the outer wall of the rotating seat (43) is rotatably mounted in the inner wall of the mounting groove (44) via a rotating shaft.

4. A long-wave pass filter structure according to claim 3, characterized in that: A protrusion (42) is fixedly connected to the outer wall of the limiting block (41).

5. The long-wave pass filter structure according to claim 1, characterized in that: A limiting groove (46) is provided on the top wall of the installation tube (1) at a position corresponding to the installation groove (44), a groove (47) is provided on the bottom wall of the limiting groove (46), and a magnet (45) is fixedly connected to the inner wall of the groove (47).

6. A long-wave pass filter structure according to claim 3, characterized in that: The outer wall of the limiting block (41) is in contact with the inner wall of the limiting groove (46); the rotating seat (43) is made of metal; and the rotating seat (43) is fixed by adsorption by a magnet (45).

7. The long-wave pass filter structure according to claim 1, characterized in that: The first protective film (21) and the second protective film (23) are both TPU film layers and are made of polyurethane, and the wear-resistant layer (22) is made of polycarbonate.

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