CN-224232035-U - Infrared athermalization lens convenient to install

Abstract

The utility model discloses an infrared athermalization lens convenient to install, which belongs to the technical field of infrared athermalization lenses and comprises a lens body, a connecting screw tube, a pneumatic limiting mechanism and a pneumatic limiting mechanism, wherein the lens body is an infrared athermalization lens, a connecting seat is arranged at the rear end of the lens body, the connecting screw tube is an external screw tube, the connecting screw tube is sleeved on the connecting seat, the pneumatic limiting mechanism is arranged in the connecting screw tube, the connecting seat is clamped by the pneumatic limiting mechanism and extends to the outside of the connecting screw tube, the connecting screw tube is in threaded connection with a detector by selecting the connecting screw tube adapting to the specification of the detector, and then the connecting screw tube and the detector are sleeved on the connecting seat together, so that the mutual limiting between the connecting screw tube, the detector and the connecting seat can be realized, the infrared athermalization lens is convenient to install, even if the lens is used in a vibration environment, the connecting screw tube and the detector cannot be loosened, and the installation failure of the infrared athermalization lens is avoided.

Inventors

• JU YUNPENG
• LUO ZHENDONG
• CHEN GAOXIANG
• GUO YOULIN

Assignees

• 南京中锗光电科技有限公司

Dates

Publication Date

20260512

Application Date

20250725

Claims (5)

1. 1. An infrared athermalized lens convenient to install is characterized by comprising: The lens body (1) is an infrared athermalized lens, and a connecting seat (2) is arranged at the rear end of the lens body (1); The connecting screw tube (3) is an external thread tube, and the connecting screw tube (3) is sleeved on the connecting seat (2); the pneumatic limiting mechanism (4) is arranged in the connecting screw tube (3), and the pneumatic limiting mechanism (4) is clamped with the connecting seat (2) and extends to the outside of the connecting screw tube (3).
2. 2. The infrared athermalized lens convenient to install according to claim 1, wherein a plurality of limit strips (5) are arranged on the connecting seat (2), a plurality of limit grooves (6) are formed in the inner wall of the connecting screw tube (3), and the limit strips (5) are clamped into the corresponding limit grooves (6).
3. 3. The infrared athermalization camera lens convenient to install according to claim 1, characterized in that the pneumatic limiting mechanism (4) comprises an air charging and discharging valve (41) and a plurality of pistons (42), a main air passage (7) is arranged in the connecting screw tube (3), a plurality of blind holes (8) are formed in the inner wall and the outer wall of the connecting screw tube (3), the blind holes (8) are communicated with the main air passage (7) through transition holes (9), the pistons (42) are slidably connected in the blind holes (8), the air charging and discharging valve (41) is connected to the outer wall of the connecting screw tube (3), the air charging and discharging valve (41) is communicated with the main air passage (7), a plurality of limiting holes (10) are formed in the surface of the connecting seat (2), and a part of the pistons (42) are clamped into the limiting holes (10).
4. 4. An infrared athermalized lens convenient to install according to claim 3, characterized in that the end of the piston (42) is provided with a non-slip pad (11).
5. 5. An infrared athermalized lens convenient to install according to claim 4, characterized in that the aperture of said transition hole (9) is smaller than the aperture of said blind hole (8), the outer wall of said piston (42) being against the inner wall of the corresponding blind hole (8).

Description

Infrared athermalization lens convenient to install Technical Field The utility model belongs to the technical field of infrared athermalized lenses, and particularly relates to an infrared athermalized lens convenient to mount. Background The infrared athermalized lens is an optical system specially designed for infrared wave bands, and has the core characteristics that stable imaging performance is maintained in a wide temperature range through special materials and structural design, and no external temperature control equipment is needed. At present, an infrared athermalization lens is usually directly screwed on a detector, and if a used scene is in a vibration environment, the screwed part is easy to loosen, so that the infrared athermalization lens is mounted and fails. Disclosure of utility model The utility model aims to solve the problems and provides an infrared athermalized lens which is convenient to install. In order to achieve the purpose, the utility model adopts the following technical scheme that the infrared athermalized lens convenient to install comprises: The lens body is an infrared athermalized lens, and a connecting seat is arranged at the rear end of the lens body; the connecting spiral tube is an external threaded tube, and the connecting spiral tube is sleeved on the connecting seat; The pneumatic limiting mechanism is arranged in the connecting screw tube, is clamped with the connecting seat and extends to the outer part of the connecting screw tube. As a further description of the above technical solution: The connecting seat is provided with a plurality of limiting strips, a plurality of limiting grooves are formed in the inner wall of the connecting screw tube, and the limiting strips are clamped into the corresponding limiting grooves. As a further description of the above technical solution: the pneumatic limiting mechanism comprises an air charging and discharging valve and a plurality of pistons, a main air passage is arranged in the connecting screw tube, a plurality of blind holes are formed in the inner wall and the outer wall of the connecting screw tube, the blind holes are communicated with the main air passage through transition holes, the pistons are slidably connected in the blind holes, the air charging and discharging valve is connected to the outer wall of the connecting screw tube, the air charging and discharging valve is communicated with the main air passage, a plurality of limiting holes are formed in the surface of the connecting seat, and part of the pistons are clamped into the limiting holes. As a further description of the above technical solution: an anti-slip pad is arranged at the end part of the piston. As a further description of the above technical solution: the aperture of the transition hole is smaller than that of the blind hole, and the outer wall of the piston abuts against the inner wall of the corresponding blind hole. In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows: 1. According to the utility model, the connecting screw tube adapting to the specification of the detector is selected, the connecting screw tube is in threaded connection with the detector, then the connecting screw tube and the detector are sleeved on the connecting seat together, and the pneumatic limiting mechanism is triggered, so that the mutual limiting between the connecting screw tube and the detector as well as between the connecting seat can be realized, the infrared athermalization lens is convenient to install, and even if the lens is used in a vibration environment, the connecting screw tube and the detector cannot be loosened easily, and the installation failure of the infrared athermalization lens is avoided. 2. According to the utility model, the main air passage is inflated through the inflation and deflation valve, a part of pistons are slidably inserted into the corresponding limiting holes in the blind holes under the action of air pressure to complete the mutual limiting between the connecting seat and the connecting screw pipe, and the other part of pistons are slidably supported against the detector in threaded connection with the connecting screw pipe in the blind holes, so that the connection failure between the connecting screw pipe and the detector can be effectively prevented. Drawings Fig. 1 is a schematic diagram of the whole structure of an infrared athermalized lens convenient to install. Fig. 2 is an exploded view of an infrared athermalized lens for easy installation. Fig. 3 is a cross-sectional view of an infrared athermalized lens for ease of installation. Fig. 4 is a partial enlarged view of a portion a in fig. 3. Fig. 5 is a usage state reference diagram of fig. 4. Legend description: 1. A lens body; 2, a connecting seat, 3, a connecting screw pipe, 4, a pneumatic limiting mechanism, 41, an air charging and discharging valve, 42, a piston, 5, a limiting strip, 6, a limi