Infrared athermalization lens with variable base

Abstract

The utility model discloses an infrared athermalization lens with a variable base, which belongs to the technical field of infrared athermalization lenses, and comprises a lens body, the rear end of which is provided with an annular base, and the end part of the annular base is provided with a plurality of annular grooves which are arranged in a concentric circle; the plurality of external threaded pipes are respectively connected into the plurality of annular grooves in a sliding manner; the multiple limiting bolts penetrate through the annular base and are in threaded connection with the multiple external threaded pipes correspondingly, and screw heads of the multiple limiting bolts abut against the outer wall of the annular base; according to the utility model, the external threaded pipe which is slidably connected in the annular base is pushed out of the annular groove, and the external threaded pipe can be fixed by tightening the limiting bolt, so that the switching among the external threaded pipes of different specifications can be completed, and the annular base of the infrared athermalization lens can be connected with detection devices of various specifications for use; and the use flexibility and universality of the infrared athermalization lens are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of infrared athermalized lens technology, and particularly relates to an infrared athermalized lens with a variable base. 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, the threaded interface size on the base of infrared athermalized lenses is fixed, which means that a single specification of infrared athermalized lens can only be used with a detector of the corresponding specification, resulting in poor versatility of infrared athermalized lenses. Utility Model Content

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

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an infrared athermalized lens with a variable base, comprising:

[0006] The lens body has an annular base at its rear end, and the end of the annular base has multiple annular grooves arranged in concentric circles.

[0007] Multiple externally threaded pipes are slidably connected within the multiple annular grooves, respectively;

[0008] Multiple limiting bolts pass through the annular base and are screwed to multiple external threaded pipes respectively, with the screw heads of the multiple limiting bolts abutting against the outer wall of the annular base.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the annular groove is provided with multiple limiting grooves, and the inner wall of the external threaded pipe is provided with multiple limiting strips, which are inserted into the multiple limiting grooves.

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

[0012] The direction of the limiting groove is parallel to the axis of the annular base.

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

[0014] The annular base has multiple waist-shaped grooves, and multiple limiting bolts pass through the multiple waist-shaped grooves respectively.

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

[0016] The externally threaded pipe has multiple clearance grooves.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] 1. In this utility model, by pushing the external threaded tube, which is slidably connected in the annular base, out of the annular groove and tightening the limiting bolt, the external threaded tube can be fixed, thus completing the switching between external threaded tubes of different specifications. This allows the annular base of the infrared athermalized lens to be connected and used with detectors of various specifications, greatly improving the flexibility and versatility of the infrared athermalized lens.

[0019] 2. In this utility model, when the external threaded tube slides in the annular groove, the limiting strip slides in the corresponding limiting groove, ensuring the stability of the external threaded tube's sliding while enabling the annular base to restrict the external threaded tube's rotational freedom, thereby improving the connection stability between the external threaded tube and the detector. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of an infrared athermalized lens with a variable base. Figure 1 .

[0021] Figure 2 A schematic diagram of the overall structure of an infrared athermalized lens with a variable base. Figure 2 .

[0022] Figure 3 Reference for the usage status of an infrared athermalized lens with a variable base Figure 1 .

[0023] Figure 4 Reference for the usage status of an infrared athermalized lens with a variable base Figure 2 .

[0024] Figure 5 An exploded view of an infrared athermalized lens with a variable base.

[0025] Figure 6 Cross-section of an infrared athermalized lens with a variable base Figure 1 .

[0026] Figure 7 Cross-section of an infrared athermalized lens with a variable base Figure 2 .

[0027] Legend:

[0028] 1. Lens body; 2. Annular base; 3. External threaded tube; 4. Limiting bolt; 5. Limiting groove; 6. Limiting strip; 7. Waist-shaped groove; 8. Clearance groove; 9. Annular groove. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-7 This utility model provides a technical solution: an infrared athermalized lens with a variable base, comprising:

[0031] The lens body 1 has an annular base 2 at its rear end, and the end of the annular base 2 has a plurality of annular grooves 9 arranged in concentric circles.

[0032] Multiple externally threaded pipes 3 are slidably connected within multiple annular grooves 9;

[0033] Multiple limiting bolts 4 pass through the annular base 2 and are respectively screwed to multiple external threaded pipes 3, and the screw heads of the multiple limiting bolts 4 abut against the outer wall of the annular base 2;

[0034] The inner wall of the annular groove 9 is provided with multiple limiting grooves 5, and the inner wall of the external threaded tube 3 is provided with multiple limiting strips 6. The multiple limiting strips 6 are inserted into the multiple limiting grooves 5. When the external threaded tube 3 slides in the annular groove 9, the limiting strips 6 slide in the corresponding limiting grooves 5, which ensures the stability of the external threaded tube 3 while allowing the annular base 2 to restrict the rotational freedom of the external threaded tube 3, thereby improving the connection stability between the external threaded tube 3 and the detector.

[0035] The direction of the limiting groove 5 is parallel to the axis of the annular base 2;

[0036] The annular base 2 has multiple waist-shaped grooves 7, and multiple limiting bolts 4 pass through the multiple waist-shaped grooves 7 respectively. When the external threaded tube 3 slides in the annular groove 9, the limiting bolts 4 screwed on the external threaded tube 3 will also slide along with it. Passing the limiting bolts 4 through the waist-shaped grooves 7 avoids interference between the limiting bolts 4 and the annular base 2.

[0037] The external threaded pipe 3 is provided with multiple clearance grooves 8. In addition to the limit bolts 4 that are screwed to the external threaded pipe 3, these limit bolts 4 may pass through the external threaded pipe 3. The clearance grooves 8 can provide passage for these limit bolts 4 to avoid interference between the limit bolts 4 and the multiple external threaded pipes 3.

[0038] Working principle: First, loosen the limit bolt 4. Second, push the limit bolt 4. Under the action of the limit bolt 4, the external threaded tube 3, which is slidably connected in the annular base 2, is pushed out from the annular groove 9. At this time, when the external threaded tube 3 slides in the annular groove 9, the limit strip 6 slides in the corresponding limit groove 5, ensuring the stability of the external threaded tube 3 while allowing the annular base 2 to restrict the rotational freedom of the external threaded tube 3. The limit bolt 4 slides in the corresponding waist-shaped groove 7 and clearance groove 8. Finally, tighten the limit bolt 4 to fix the external threaded tube 3, thus completing the switching between different specifications of external threaded tube 3.

[0039] 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. A variable base infrared athermalized lens characterized by: include: The lens body (1) has an annular base (2) at its rear end, and the annular base (2) has multiple annular grooves (9) arranged in concentric circles at its end. Multiple externally threaded pipes (3) are slidably connected in multiple annular grooves (9); Multiple limiting bolts (4) pass through the annular base (2) and are respectively screwed to multiple external threaded pipes (3), and the screw heads of the multiple limiting bolts (4) abut against the outer wall of the annular base (2).

2. The infrared athermalization lens with variable mount according to claim 1, characterized in that, The inner wall of the annular groove (9) is provided with multiple limiting grooves (5), and the inner wall of the external threaded pipe (3) is provided with multiple limiting strips (6), and the multiple limiting strips (6) are inserted into the multiple limiting grooves (5).

3. An infrared athermalization lens with variable mount according to claim 2, characterized in that, The direction of the limiting groove (5) is parallel to the axis of the annular base (2).

4. The infrared athermalization lens with variable mount according to claim 1, wherein, The annular base (2) has multiple waist-shaped grooves (7), and multiple limiting bolts (4) pass through the multiple waist-shaped grooves (7) respectively.

5. An infrared athermalization lens with variable mount according to claim 4, characterized in that, Multiple clearance grooves (8) are provided on the external threaded pipe (3).

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