Low-radiation infrared field lens device

Abstract

The utility model discloses a low-radiation infrared field lens device, relates to the technical field of field lenses, and aims to solve the problems that an infrared field lens needs to be mounted and dismounted frequently, and the operation flexibility of mounting and dismounting of existing parts is limited. The reserved notches are formed in the rear end face of the infrared field lens body, the two reserved notches are formed, the two reserved notches and the rear end face of the infrared field lens body are integrally formed, reserved holes are formed in one sides of the two reserved notches, the two reserved holes are formed in one sides of the two reserved notches, and the two reserved notches are formed in the other sides of the two reserved notches. The two preformed holes are integrally formed with the infrared field lens body, the connecting blocks are installed on the outer wall of the connecting end, the number of the connecting blocks is two, spring telescopic blocks are arranged on one sides of the upper end faces of the two connecting blocks, and the number of the spring telescopic blocks is two. And one ends of the two spring telescopic blocks penetrate through and extend into the connecting block.

Description

Technical Field

[0001] The utility model relates to the technical field of field mirrors, in particular to a low-radiation infrared field mirror device. Background Art

[0002] The lens working near the focal plane of the objective lens is called a field lens. People also call it: F-Theta field lens, f-θ field lens, laser scanning focusing lens, flat field focusing lens. It changes the position of the imaging beam without changing the optical characteristics of the optical system. Field lenses are often used in 1064nm, 10.6 microns, 532nm and 355nm optical systems.

[0003] For example, the announcement number is CN207123641U, and the name of the Chinese authorized patent is (A low-radiation infrared field mirror device), including: a field mirror, a field mirror cold plate, a field mirror frame, a field mirror bracket, a field mirror base, and four adjustable feet; wherein the field mirror cold plate is fixedly connected to the back of the field mirror; the field mirror frame is fixedly connected to the circumferential edge of the field mirror; the upper end of the field mirror bracket is fixedly connected to the field mirror frame; the field mirror base is fixedly connected to the lower end of the field mirror bracket; the upper end of the adjustable foot is fixedly connected to the field mirror base. Compared with the usual infrared field mirror, the low-radiation infrared field mirror device of the utility model greatly reduces the background temperature of the infrared target simulation scene, and solves the problem of making the background temperature of the simulated infrared target scene lower than 100K in a 100K vacuum cold chamber environment.

[0004] However, infrared field mirrors need to be frequently installed and disassembled, and the existing parts have limited flexibility in installation and disassembly; therefore, they do not meet existing needs. We have proposed a low-radiation infrared field mirror device. Utility Model Content

[0005] The purpose of the utility model is to provide a low-radiation infrared field mirror device to solve the problem that the infrared field mirror proposed in the above background technology needs to be frequently installed and disassembled, and the operational flexibility of existing parts in installation and disassembly is limited.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-radiation infrared field mirror device, comprising: an infrared field mirror body, a focus adjustment mechanism is arranged in front of the infrared field mirror body, one end of the focus adjustment mechanism is rotatably threadedly connected to the front end of the infrared field mirror body through a first threaded wall, and a connection terminal is arranged at the rear of the infrared field mirror body;

[0007] Also includes:

[0008] A reserved notch is installed on the rear end face of the infrared field mirror body, two reserved notches are provided, and the two reserved notches are formed integrally with the rear end face of the infrared field mirror body, one side of the two reserved notches is provided with a reserved hole, and two reserved holes are provided, and the two reserved holes are formed integrally with the infrared field mirror body;

[0009] A connecting block is installed on the outer wall of the connecting end. Two connecting blocks are provided. One side of the upper end surfaces of the two connecting blocks is provided with a spring expansion block. Two spring expansion blocks are provided. One end of the two spring expansion blocks penetrates and extends into the interior of the connecting block.

[0010] Preferably, an inner cavity is provided inside the infrared field mirror body, grooves are provided on the upper and lower sides of the inner wall of the inner cavity, and two grooves are provided, and lead layers are provided inside the two grooves, and two lead layers are provided.

[0011] Preferably, a main lens is arranged between the two lead layers, and the main lens is fixedly connected to the lead layers.

[0012] Preferably, a circle of the outer wall of the connecting end is provided with a bolt connecting wall, and a second protective mirror is provided inside one end of the connecting end.

[0013] Preferably, a front end surface of the focal length adjustment mechanism is provided with a protective cover, and a first protective mirror is provided inside the protective cover.

[0014] Preferably, both sides of the outer wall of the infrared field mirror body are provided with anti-skid rubber pads, and two anti-skid rubber pads are provided, and the two anti-skid rubber pads are hot-melt connected to both sides of the outer wall of the infrared field mirror body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a reserved hole and a reserved notch on the rear end face of the infrared field mirror body, and a connecting block and a spring expansion block on the connecting end head. The connecting block on the outer wall of the connecting end head is aligned with the reserved notch position of the rear end face of the infrared field mirror body. The spring expansion block on the connecting block is pressed downward and enters the reserved notch. The entire connecting end head is rotated to make the spring expansion block exposed from the reserved hole. Thus, the connecting end head can be securely fixed, and the infrared field mirror is effectively avoided from being frequently installed and disassembled. The problem that the operational flexibility of existing parts in installation and disassembly is limited is avoided.

[0017] By arranging a lead layer on the inner wall of the inner cavity of the infrared field mirror body, the radiation entering the body is effectively absorbed, thereby effectively reducing the impact of radiation on the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the rear end structure of the infrared field mirror main body of the utility model;

[0020] Figure 3 This is a schematic diagram of the top view of the connecting end of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the infrared field mirror body of the utility model;

[0022] Figure 5 It is a schematic diagram of the local structure of the connection block of the utility model;

[0023] In the figure: 100, infrared field mirror body; 101, anti-slip rubber pad; 102, reserved hole; 103, reserved notch; 104, groove; 105, lead layer; 106, main lens; 108, inner cavity; 200, focal length adjustment mechanism; 201, protective cover; 202, first protective mirror surface; 203, first threaded wall; 300, connecting end; 301, bolt connection wall; 302, second protective mirror surface; 303, connecting block; 304, spring expansion block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-5 The utility model provides an embodiment: a low-radiation infrared field mirror device, comprising: an infrared field mirror body 100, a focus adjustment mechanism 200 is arranged in front of the infrared field mirror body 100, one end of the focus adjustment mechanism 200 is rotatably threadedly connected to the front end of the infrared field mirror body 100 through a first threaded wall 203, and a connection terminal 300 is arranged at the rear of the infrared field mirror body 100;

[0026] Also includes:

[0027] A reserved notch 103 is installed on the rear end face of the infrared field mirror body 100. Two reserved notches 103 are provided. The two reserved notches 103 are formed integrally with the rear end face of the infrared field mirror body 100. A reserved hole 102 is provided on one side of the two reserved notches 103. Two reserved holes 102 are provided. The two reserved holes 102 are formed integrally with the infrared field mirror body 100.

[0028] The connecting block 303 is installed on the outer wall of the connecting end 300. Two connecting blocks 303 are provided. A spring expansion block 304 is provided on one side of the upper end surface of the two connecting blocks 303. There are two spring expansion blocks 304. One end of the two spring expansion blocks 304 passes through and extends to the interior of the connecting block 303.

[0029] See also Figure 4 An inner cavity 108 is arranged inside the infrared field mirror body 100, and grooves 104 are arranged on the upper and lower sides of the inner wall of the inner cavity 108, and two grooves 104 are arranged, and lead layers 105 are arranged inside the two grooves 104, and two lead layers 105 are arranged.

[0030] See also Figure 4 A main lens 106 is disposed between the two lead layers 105 , and the main lens 106 is fixedly connected to the lead layers 105 .

[0031] See also Figure 1 and Figure 2 A bolt connection wall 301 is provided around the outer wall of the connecting end 300, a second protective mirror 302 is provided inside one end of the connecting end 300, a protective cover 201 is provided on the front end surface of the focal length adjustment mechanism 200, a first protective mirror 202 is provided inside the protective cover 201, and anti-slip rubber pads 101 are provided on both sides of the outer wall of the infrared field mirror body 100, and two anti-slip rubber pads 101 are provided, and the two anti-slip rubber pads 101 are hot-melt connected to both sides of the outer wall of the infrared field mirror body 100.

[0032] The provision of the anti-skid rubber pad 101 effectively reduces the friction of the staff in taking the infrared field mirror body 100 and reduces the probability of falling off.

[0033] Working principle: Before use, first align the connecting block 303 on the outer wall of the connecting terminal 300 with the reserved notch 103 on the rear end face of the infrared field mirror body 100, then press the spring expansion block 304 on the connecting block 303 downward, and after entering the reserved notch 103, rotate the entire connecting terminal 300 to make the spring expansion block 304 exposed from the reserved hole 102, so that the connecting terminal 300 can be firmly fixed. During use, the lead layer arranged on the inner wall of the infrared field mirror body can effectively absorb the radiation after entering, thereby effectively reducing the impact of radiation on the human body.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A low-radiation infrared field mirror device, comprising an infrared field mirror body (100), wherein a focus adjustment mechanism (200) is arranged at the front of the infrared field mirror body (100), one end of the focus adjustment mechanism (200) is rotatably threadedly connected to the front end of the infrared field mirror body (100) through a first threaded wall (203), and a connection terminal (300) is arranged at the rear of the infrared field mirror body (100); Features: Also includes: A reserved notch (103) installed on the rear end face of the infrared field mirror body (100), two reserved notches (103) are provided, and the two reserved notches (103) are both formed integrally with the rear end face of the infrared field mirror body (100), one side of the two reserved notches (103) is provided with a reserved hole (102), and two reserved holes (102) are provided, and the two reserved holes (102) are both formed integrally with the infrared field mirror body (100); A connecting block (303) is mounted on the outer wall of the connecting end (300), two connecting blocks (303) are provided, one side of the upper end surfaces of the two connecting blocks (303) is provided with a spring expansion block (304), and two spring expansion blocks (304) are provided, one end of the two spring expansion blocks (304) penetrates and extends into the interior of the connecting block (303).

2. A low-radiation infrared field mirror device according to claim 1, characterized in that: An inner cavity (108) is provided inside the infrared field mirror body (100), grooves (104) are provided on the upper side and the lower side of the inner wall of the inner cavity (108), and two grooves (104) are provided, and lead layers (105) are provided inside the two grooves (104), and two lead layers (105) are provided.

3. A low-radiation infrared field mirror device according to claim 2, characterized in that: A main lens (106) is arranged between the two lead layers (105), and the main lens (106) is fixedly connected to the lead layer (105).

4. The low-radiation infrared field mirror device according to claim 1, characterized in that: A bolt connection wall (301) is provided around the outer wall of the connection end (300), and a second protective mirror surface (302) is provided inside one end of the connection end (300).

5. The low-radiation infrared field mirror device according to claim 1, characterized in that: The front end surface of the focal length adjustment mechanism (200) is provided with a protective cover (201), and the interior of the protective cover (201) is provided with a first protective mirror surface (202).

6. The low-radiation infrared field mirror device according to claim 1, characterized in that: Anti-skid rubber pads (101) are provided on both sides of the outer wall of the infrared field mirror body (100), and two anti-skid rubber pads (101) are provided, and the two anti-skid rubber pads (101) are both connected to both sides of the outer wall of the infrared field mirror body (100) by hot melting.

Images