Fabricated infrared athermalization lens

Abstract

The utility model discloses an assembly type infrared athermalization lens, which belongs to the technical field of infrared athermalization lenses, and comprises a tube frame, a lens frame and a lens frame, the tube frame is sleeved with the lens barrel, one end of the lens barrel is connected with the tube frame, and the axis of the lens barrel coincides with the axis of the tube frame; the plurality of supporting rings are inserted into the pipe frame from one side of the pipe frame, and the plurality of supporting rings abut against the inner wall of the lens cone; according to the utility model, the tube frame for supporting the lenses is separated from the lens barrel, so that the lenses do not need to be mounted layer by layer in the lens barrel when the lens is assembled, only the lenses need to be clamped on the tube frame by means of the supporting rings, and then the tube frame is connected with the lens barrel, so that the assembled mounting of the lens can be realized, and the assembling efficiency of the lens is greatly improved; meanwhile, when a certain lens is replaced, only the supporting ring corresponding to the lens needs to be pulled out after the tube frame is separated from the lens barrel, other lenses do not need to be detached, and the replacement operation of the lens is simple and convenient.

Description

Technical Field

[0001] This utility model belongs to the field of infrared athermalized lens technology, and particularly relates to an assembled infrared athermalized lens. Background Technology

[0002] An infrared athermal lens is an optical system designed specifically for the infrared band. Its core feature is that it maintains stable imaging performance over a wide temperature range through special materials and structural design, without relying on external temperature control equipment.

[0003] Currently, multiple lenses of an infrared athermalized lens are fixedly connected layer by layer inside the lens barrel, which is inconvenient for the assembly of the infrared athermalized lens, reduces assembly efficiency, and when one lens needs to be replaced, the other lenses need to be removed, making the lens replacement operation inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide an assembled infrared athermalized lens in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an assembled infrared pyrotechnic lens, comprising:

[0006] The tube rack is cylindrical in shape;

[0007] A microscope tube is fitted onto the tube frame, one end of which is connected to the tube frame, and the axis of the microscope tube coincides with the axis of the tube frame.

[0008] Multiple support rings are inserted into the tube frame from one side, and the multiple support rings abut against the inner wall of the lens barrel, with the axis of the support rings coinciding with the axis of the tube frame;

[0009] Multiple lenses are respectively installed within multiple support rings;

[0010] The connecting seat is in the shape of a cylindrical tube. The connecting seat is connected to the other end of the lens barrel, and the axis of the connecting seat coincides with the axis of the lens barrel.

[0011] As a further description of the above technical solution:

[0012] At least two limiting strips are provided on the outer wall of the tube frame. The limiting strips are parallel to the axis of the tube frame. A limiting groove corresponding to the limiting strip is opened on the inner wall of the lens tube. The limiting strip is inserted into the corresponding limiting groove.

[0013] As a further description of the above technical solution:

[0014] Both the end of the tube frame and the connecting seat are provided with connecting flanges, and the connecting flanges are connected to the end of the lens barrel by multiple bolts.

[0015] As a further description of the above technical solution:

[0016] The side wall of the pipe rack is provided with a plurality of clearance slots evenly arranged at equal intervals along a straight line, and the inner wall of the pipe rack is provided with positioning slots corresponding to the clearance slots. The support ring is inserted into the clearance slots and the positioning slots.

[0017] As a further description of the above technical solution:

[0018] The connector is a threaded pipe.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. In this utility model, by separating the lens support tube from the lens barrel, the lens does not need to be installed layer by layer inside the lens barrel during lens assembly. The lens can be simply attached to the tube with the help of the support ring, and then the tube is connected to the lens barrel to achieve the assembly installation of the lens, which greatly improves the lens assembly efficiency. At the same time, when replacing a lens, it is only necessary to separate the tube from the lens barrel and pull out the support ring corresponding to the lens, without removing other lenses, making the lens replacement operation simple and convenient.

[0021] 2. In this utility model, the snap-fit ​​structure design between the support ring and the tube frame facilitates the quick assembly and disassembly of the support ring on the tube frame, thereby enabling the replacement of a single lens without disassembling other lenses, improving the assembly efficiency of the infrared pyrotechnic lens, and making lens replacement operation convenient. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of an assembled infrared athermalized lens. Figure 1 .

[0023] Figure 2 A schematic diagram of the overall structure of an assembled infrared athermalized lens. Figure 2 .

[0024] Figure 3 An explosion of a prefabricated infrared athermalized lens Figure 1 .

[0025] Figure 4 An explosion of a prefabricated infrared athermalized lens Figure 2 .

[0026] Figure 5 A cross-section of an assembled infrared athermalized lens Figure 1 .

[0027] Figure 6 A cross-section of an assembled infrared athermalized lens Figure 2 .

[0028] Legend:

[0029] 1. Tube support; 2. Lens barrel; 3. Support ring; 4. Lens; 5. Connecting seat; 6. Limiting strip; 7. Limiting groove; 8. Connecting flange; 9. Clearance groove; 10. Positioning groove. Detailed Implementation

[0030] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-6 This utility model provides a technical solution: an assembled infrared pyrotechnic lens, comprising:

[0032] Pipe rack 1, which is in the shape of a round tube;

[0033] The lens tube 2 is sleeved on the tube frame 1, one end of the lens tube 2 is connected to the tube frame 1, and the axis of the lens tube 2 coincides with the axis of the tube frame 1.

[0034] Multiple support rings 3 are inserted into the tube frame 1 from one side, and the multiple support rings 3 abut against the inner wall of the lens barrel 2, with the axis of the support ring 3 coinciding with the axis of the tube frame 1;

[0035] Multiple lenses 4 are respectively installed in multiple support rings 3;

[0036] The connecting seat 5 is in the shape of a round tube. The connecting seat 5 is connected to the other end of the lens barrel 2, and the axis of the connecting seat 5 coincides with the axis of the lens barrel 2.

[0037] At least two limiting strips 6 are provided on the outer wall of the tube frame 1. The limiting strips 6 are parallel to the axis of the tube frame 1. The inner wall of the lens barrel 2 is provided with a limiting groove 7 corresponding to the limiting strips 6. The limiting strips 6 are inserted into the corresponding limiting grooves 7. The limiting grooves 7 have a guiding and supporting function for the limiting strips 6, effectively limiting the degree of freedom of the tube frame 1 to rotate along its axis during the device process, which facilitates the rapid assembly between the tube frame 1 and the lens barrel 2.

[0038] Both the end of the tube frame 1 and the connecting seat 5 are provided with connecting flanges 8. The connecting flanges 8 are connected to the end of the lens barrel 2 by multiple bolts, which facilitates the quick assembly and installation between the tube frame 1, the lens barrel 2 and the connecting seat 5.

[0039] The side wall of the tube frame 1 is provided with a plurality of clearance slots 9 evenly arranged at equal intervals along a straight line. The inner wall of the tube frame 1 is provided with positioning slots 10 corresponding to the clearance slots 9. The support ring 3 is inserted into the clearance slots 9 and the positioning slots 10. The snap-fit ​​structure design between the support ring 3 and the tube frame 1 facilitates the quick installation and removal of the support ring 3 on the tube frame 1. This allows for the replacement of a single lens 4 without disassembling other lenses 4, improving the assembly efficiency of the infrared pyrotechnic lens and making the replacement of the lens 4 convenient.

[0040] The connector 5 is a threaded tube, which facilitates quick connection between the lens and the detector.

[0041] Working principle: First, during lens assembly, the lens element 4 is installed inside the support ring 3. According to the design requirements, the clearance groove 9 corresponding to the lens element 4 is located, and the support ring 3 is inserted into the clearance groove 9. Then, the support ring 3 is inserted into the positioning groove 10. Multiple lenses 4 are installed in sequence. Next, the limiting strip 6 on the tube frame 1 is aligned with the limiting groove 7 inside the lens barrel 2 and inserted. The connecting flange 8 on the tube frame 1 abuts against the end of the lens barrel 2, and the connecting flange 8 and the lens barrel 2 are fixed with bolts. At this time, the support ring 3 abuts against the inner wall of the lens barrel 2 to prevent the support ring 3 from moving on the tube frame 1. Then, the connecting flange 8 on the connecting seat 5 abuts against the end of the lens barrel 2, and the connecting flange 8 and the lens barrel 2 are fixed with bolts, completing the overall assembly of the lens. Finally, if a lens element 4 needs maintenance or replacement, simply loosen the bolts and remove the entire tube frame 1 from the lens barrel 2. Pull out the support ring 3 corresponding to the lens element 4 from the positioning groove 10 and the clearance groove 9, and then replace the lens element 4.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An assembled infrared athermalized lens, characterized in that: include: The tube rack (1) is a circular tube; The lens tube (2) is sleeved on the tube frame (1), one end of the lens tube (2) is connected to the tube frame (1), and the axis of the lens tube (2) coincides with the axis of the tube frame (1); Multiple support rings (3) are inserted into the tube frame (1) from one side, and the multiple support rings (3) abut against the inner wall of the lens tube (2), with the axis of the support rings (3) coinciding with the axis of the tube frame (1); Multiple lenses (4) are respectively installed in multiple support rings (3); The connecting seat (5) is a cylindrical tube that connects to the other end of the lens tube (2), and the axis of the connecting seat (5) coincides with the axis of the lens tube (2).

2. The assembled infrared athermalized lens according to claim 1, characterized in that, At least two limiting strips (6) are provided on the outer wall of the tube frame (1). The limiting strips (6) are parallel to the axis of the tube frame (1). The inner wall of the lens tube (2) is provided with a limiting groove (7) corresponding to the limiting strips (6). The limiting strips (6) are inserted into the corresponding limiting grooves (7).

3. The assembled infrared athermalized lens according to claim 1, characterized in that, Both the end of the tube frame (1) and the connecting seat (5) are provided with connecting flanges (8), and the connecting flanges (8) are connected to the end of the lens tube (2) by multiple bolts.

4. The assembled infrared athermalized lens according to claim 1, characterized in that, The side wall of the pipe rack (1) is provided with a plurality of clearance slots (9) evenly arranged at equal distances along a straight line. The inner wall of the pipe rack (1) is provided with a positioning slot (10) corresponding to the clearance slots (9). The support ring (3) is inserted into the clearance slots (9) and the positioning slots (10).

5. The assembled infrared athermalized lens according to claim 1, characterized in that, The connecting seat (5) is a threaded pipe.

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