Laser attenuation device for IRST

By designing a laser reduction device used for IRST system, using automatic adjustment attenuation and reflectors to process strong laser signals, and providing additional protection through protecting the shell and baffle, solving the IRST system. The overload or misunderstanding caused by laser signals has achieved simplification of equipment safety and maintenance.

CN222420570UActive Publication Date: 2025-01-28SHANGHAI LEIHAO OPTOELECTRONICS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421186720.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-28
Publication Date
2025-01-28
Estimated Expiration
2034-05-28

AI Technical Summary

Technical Problem

In some cases, the IRST system may receive too strong laser signals, causing the system to be overloaded or misoperated, and it is not convenient to protect the device laser.

Method used

Design a laser reduction device including the subject, laser receiver, attenuated controller and reflector, and processing excessive laser signals by automatically adjust the attenuation volume and the reflectivity of the reflex mirror, and protect the shell and by protecting the shell and The baffle provides additional protection.

Benefits of technology

The IRST system is effectively avoided by the overload or misunderstanding caused by a strong laser signal, ensuring the safety of the device, and simplifying the structure and maintenance of the device.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222420570U_ABST
    Figure CN222420570U_ABST
Patent Text Reader

Abstract

The utility model discloses a laser attenuation device for IRST, comprising an attenuator main body and second fixing plates, the rear side wall of the attenuator main body is provided with an installation housing, the two sides of the installation housing are provided with first fixing plates, the two side walls of the attenuator main body are provided with second fixing plates, and the first fixing plates are provided with second fixing plates. A first threaded bolt is installed in the second fixing plate, a sliding groove is formed in the front end face of the attenuator body, a threaded rod is installed in the sliding groove, a sliding block is installed on the outer surface of the threaded rod, and a protective shell is installed at the front end of the sliding block. According to the invention, the protective housing ascends and descends to a certain extent in the sliding groove through the threaded rod and is used for protecting a lens on the front end surface of the attenuator main body to a certain extent, and the baffle plate rotates to a certain extent through the connecting shaft and then is fastened with the protective housing through the second threaded bolt. And the lens on the front end surface of the attenuator main body is further protected.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of laser attenuation devices, in particular to a laser attenuation device for IRST. Background Art

[0002] IRST stands for infrared search and tracking system. The IRST system is mainly used to detect and track targets. It uses the infrared energy radiated by the target to detect, track and identify the target through receivers, trackers and other equipment. The IRST system is widely used in military, aerospace, aviation and other fields and is one of the indispensable important equipment in modern warfare.

[0003] However, in some cases, the IRST system may receive an overly strong laser signal, causing system overload or misoperation, and making it difficult to protect the equipment laser. For this reason, this case designs a laser attenuation device for IRST. Utility Model Content

[0004] The utility model aims to provide a laser attenuation device for IRST to solve the problem that in some cases, the IRST system may receive an overly strong laser signal, resulting in system overload or misoperation, and inconvenience in protecting the equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser attenuation device for IRST, comprising an attenuator body and a second fixing plate, a mounting shell is installed on the rear side wall of the attenuator body, a first fixing plate is installed on both sides of the mounting shell, a second fixing plate is installed on both side walls of the attenuator body, a first threaded bolt is installed inside the second fixing plate, a slide groove is provided on the front end surface of the attenuator body, a threaded rod is installed inside the slide groove, a slider is installed on the outer surface of the threaded rod, a protective shell is installed on the front end of the slider, a connecting shaft is installed on the upper end edge of the protective shell, a baffle is installed on the outer surface of the connecting shaft, and a second threaded bolt is installed on the front end of the baffle.

[0006] Preferably, the attenuator body includes a laser receiver, an attenuation controller and a reflector.

[0007] Preferably, the mounting shell is fixedly connected to the first fixing plate, and the attenuator body forms a detachable structure with the mounting shell via the first fixing plate, the second fixing plate and the first threaded bolt.

[0008] Preferably, the laser receiver is used to receive an external laser signal, the attenuation controller is connected to the laser receiver, and the reflector is connected to the attenuation controller.

[0009] Preferably, the protective shell and the slide block are fixedly connected, and the slide block forms a lifting structure through a threaded rod and a slide groove.

[0010] Preferably, the baffle plate forms a rotating structure with the protective shell through a connecting shaft, and the baffle plate forms a detachable structure with the protective shell through a second threaded bolt.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The protective shell of the utility model is lifted and lowered in the slide groove by the threaded rod to protect the lens on the front end of the attenuator body. The baffle is rotated with the protective shell by the connecting shaft and then fastened with the protective shell by the second threaded bolt to further protect the lens on the front end of the attenuator body.

[0013] 2. The practical laser receiver is used to receive external laser signals and transmit the signals to the attenuation controller. The attenuation controller automatically adjusts the attenuation amount according to the intensity of the received laser signal and transmits the adjusted laser signal to the reflector. The reflector reflects the adjusted laser signal to the IRST system. After receiving the laser signal, the attenuation controller determines the intensity of the laser signal through the signal processing module. According to the determination result, the control module automatically adjusts the attenuation amount. The adjusted laser signal drives the reflector to reflect through the driving module. During the reflection process, the intensity of the reflected light can be further adjusted by adjusting the reflectivity of the reflector. The laser intensity can be automatically adjusted to avoid overload or misoperation of the IRST system. At the same time, the device has a simple structure and is easy to implement and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure of the protective housing of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the use process of the attenuator body of the utility model.

[0017] In the figure: 1. attenuator body; 101. laser receiver; 102. attenuation controller; 103. reflector; 2. mounting housing; 3. first fixing plate; 4. second fixing plate; 5. first threaded bolt; 6. slide groove; 7. threaded rod; 8. slider; 9. protective housing; 10. connecting shaft; 11. baffle; 12. second threaded bolt. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-3 The utility model provides a technical solution: a laser attenuation device for IRST, comprising an attenuator body 1 and a second fixing plate 4, a mounting shell 2 is installed on the rear side wall of the attenuator body 1, first fixing plates 3 are installed on both sides of the mounting shell 2, second fixing plates 4 are installed on both side walls of the attenuator body 1, a first threaded bolt 5 is installed inside the second fixing plate 4, a slide groove 6 is opened on the front end surface of the attenuator body 1, a threaded rod 7 is installed inside the slide groove 6, a slider 8 is installed on the outer surface of the threaded rod 7, a protective shell 9 is installed on the front end of the slider 8, a connecting shaft 10 is installed on the upper end edge of the protective shell 9, a baffle 11 is installed on the outer surface of the connecting shaft 10, and a second threaded bolt 12 is installed on the front end of the baffle 11.

[0020] Furthermore, the attenuator body 1 includes a laser receiver 101, an attenuation controller 102 and a reflector 103. The laser receiver 101 is used to receive an external laser signal. The attenuation controller 102 is connected to the laser receiver 101. The reflector 103 is connected to the attenuation controller 102. The laser receiver 101 is used to receive an external laser signal and transmit the signal to the attenuation controller 102. The attenuation controller 102 automatically adjusts the attenuation amount according to the intensity of the received laser signal and transmits the adjusted laser signal to the reflector 103. The reflector 103 reflects the adjusted laser signal to the IRST system. After receiving the laser signal, the attenuation controller 102 determines the intensity of the laser signal through the signal processing module. According to the determination result, the control module automatically adjusts the attenuation amount. The adjusted laser signal drives the reflector 103 to reflect through the driving module. During the reflection process, the intensity of the reflected light can be further adjusted by adjusting the reflectivity of the reflector 103. The laser intensity can be automatically adjusted to avoid overload or misoperation of the IRST system. At the same time, the device has a simple structure and is easy to implement and maintain.

[0021] Furthermore, the mounting shell 2 is fixedly connected to the first fixing plate 3, and the attenuator body 1 forms a detachable structure with the mounting shell 2 through the first fixing plate 3, the second fixing plate 4 and the first threaded bolt 5. The attenuator body 1 is arranged to be disassembled to a certain extent with the mounting shell 2 through the first fixing plate 3, the second fixing plate 4 and the first threaded bolt 5, so as to facilitate the maintenance of the interior.

[0022] Furthermore, the protective shell 9 and the slider 8 are fixedly connected, and the slider 8 forms a lifting structure with the slide groove 6 through the threaded rod 7. The protective shell 9 is set to be lifted and lowered in the slide groove 6 by the threaded rod 7 to provide certain protection for the front end lens of the attenuator body 1.

[0023] Furthermore, the baffle 11 forms a rotating structure with the protective shell 9 through the connecting shaft 10, and the baffle 11 forms a detachable structure with the protective shell 9 through the second threaded bolt 12. The baffle 11 is rotated to a certain extent with the protective shell 9 through the connecting shaft 10, and then fastened with the protective shell 9 through the second threaded bolt 12, so as to further protect the front end lens of the attenuator body 1.

[0024] Working principle: The laser receiver 101 is used to receive an external laser signal and transmit the signal to the attenuation controller 102. The attenuation controller 102 automatically adjusts the attenuation amount according to the intensity of the received laser signal, and transmits the adjusted laser signal to the reflector 103. The reflector 103 reflects the adjusted laser signal to the IRST system. After receiving the laser signal, the attenuation controller 102 judges the intensity of the laser signal through the signal processing module. According to the judgment result, the control module automatically adjusts the attenuation amount. The adjusted laser signal drives the reflector 103 to reflect through the driving module. During the reflection process, the intensity of the reflected light can be further adjusted by adjusting the reflectivity of the reflector 103. The laser intensity can be automatically adjusted to avoid overload or misoperation of the IRST system. At the same time, the device has a simple structure and is easy to implement and maintain. The protective shell 9 is raised and lowered in the slide groove 6 by the threaded rod 7 to protect the front end lens of the attenuator body 1. The baffle 11 is rotated with the protective shell 9 by the connecting shaft 10, and then fastened with the protective shell 9 by the second threaded bolt 12 to further protect the front end lens of the attenuator body 1.

[0025] 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 laser attenuation device for IRST, comprising an attenuator body (1) and a second fixing plate (4), characterized in that: The rear side wall of the attenuator body (1) is provided with a mounting shell (2), the two sides of the mounting shell (2) are provided with a first fixing plate (3), the two side walls of the attenuator body (1) are provided with a second fixing plate (4), the interior of the second fixing plate (4) is provided with a first threaded bolt (5), the front end surface of the attenuator body (1) is provided with a slide groove (6), the interior of the slide groove (6) is provided with a threaded rod (7), the outer surface of the threaded rod (7) is provided with a slider (8), the front end of the slider (8) is provided with a protective shell (9), the upper end edge of the protective shell (9) is provided with a connecting shaft (10), the outer surface of the connecting shaft (10) is provided with a baffle (11), the front end of the baffle (11) is provided with a second threaded bolt (12).

2. The laser attenuation device for IRST according to claim 1, characterized in that: The attenuator body (1) comprises a laser receiver (101), an attenuation controller (102) and a reflecting mirror (103).

3. The laser attenuation device for IRST according to claim 1, characterized in that: The mounting shell (2) is fixedly connected to the first fixing plate (3), and the attenuator body (1) forms a detachable structure with the mounting shell (2) via the first fixing plate (3), the second fixing plate (4) and the first threaded bolt (5).

4. The laser attenuation device for IRST according to claim 2, characterized in that: The laser receiver (101) is used to receive an external laser signal, the attenuation controller (102) is connected to the laser receiver (101), and the reflector (103) is connected to the attenuation controller (102).

5. The laser attenuation device for IRST according to claim 1, characterized in that: The protective shell (9) and the slide block (8) are fixedly connected, and the slide block (8) forms a lifting structure with the slide groove (6) through the threaded rod (7).

6. The laser attenuation device for IRST according to claim 1, characterized in that: The baffle (11) forms a rotating structure with the protective shell (9) via a connecting shaft (10), and the baffle (11) forms a detachable structure with the protective shell (9) via a second threaded bolt (12).