CN220438651U

CN220438651U - Monocular night vision device

Info

Publication number: CN220438651U
Application number: CN202322024910.0U
Authority: CN
Inventors: 陈竹均
Original assignee: Gaodi Digital Qingdao Co Ltd
Current assignee: Gaodi Digital Qingdao Co Ltd
Priority date: 2023-07-28
Filing date: 2023-07-28
Publication date: 2024-02-02
Anticipated expiration: 2033-07-28

Abstract

The utility model relates to a monocular night vision device, comprising: a housing assembly having a receiving cavity therein; the focusing objective lens is arranged at one end of the shell component; the infrared mirror and the objective lens are arranged at one end of the shell component in parallel; the observation chamber is connected with the shell assembly and is arranged in the accommodating cavity, and the observation chamber is communicated; the display screen is arranged at one end of the observation chamber close to the objective lens; the main control board assembly is arranged in the accommodating cavity and is electrically connected with the objective lens, the infrared lens and the display screen; the eyepiece mounting frame assembly is connected with the observation chamber and/or the shell assembly and is positioned at one end of the observation chamber far away from the display screen, and the eyepiece mounting frame assembly comprises a distance adjusting cylinder; the focusing and adjusting ocular comprises a first ocular and a second ocular which are coaxially arranged in sequence along the direction far away from the display screen, and the adjusting cylinder is respectively in threaded connection with the first ocular and the second ocular so that the distance between the first ocular and the second ocular can be adjusted.

Description

Monocular night vision device

Technical Field

The utility model relates to the technical field of night vision devices, in particular to a monocular night vision device.

Background

The night vision device is an observation device which can be used in a dark environment, and the infrared night vision device is used for telescope observation, night vision observation, sighting telescope sighting and video shooting by utilizing a photoelectric conversion technology. The existing night vision device comprises a binocular night vision device and a monocular night vision device, the binocular night vision device is large in size and good in visual effect when used, but the binocular night vision device is required to be used, and other observations cannot be carried out; the monocular night vision device is small in size, only one eye is needed, and the other eye can carry out other observations.

Because the night vision device is small in size, the display screen is generally small in size, the display screen is required to be amplified for convenient observation, the conventional monocular night vision device is provided with a long-focus monofocal amplifying eyepiece at the eyepiece, the mode needs a very long focal length, the whole size is large, the display screen is required to have high resolution, the resolution can be reduced due to the amplifying eyepiece, the adjustment stroke of the long-focus monofocal amplifying eyepiece is very large, but the refractive adjustment range is very small, and is generally about 100 degrees.

Disclosure of Invention

In view of the above, it is necessary to provide a monocular night vision device which is small in size, short in focal length, and wide in refractive adjustment range.

In order to solve the technical problems, the utility model adopts the following technical scheme: a monocular night vision device comprising: a housing assembly having a receiving cavity therein; the focusing objective lens is arranged at one end of the shell component; the infrared mirror is arranged at one end of the shell component in parallel with the objective lens; the observation chamber is connected with the shell assembly and is arranged in the accommodating cavity, and the observation chamber is communicated; the display screen is arranged at one end of the observation chamber, which is close to the objective lens; the main control board assembly is configured in the accommodating cavity and is electrically connected with the objective lens, the infrared mirror and the display screen; the eyepiece mounting frame assembly is connected with the observation chamber and/or the shell assembly and is positioned at one end of the observation chamber away from the display screen, and the eyepiece mounting frame assembly comprises a distance adjusting cylinder; the focusing and adjusting ocular comprises a first ocular and a second ocular which are coaxially arranged in sequence along the direction far away from the display screen, and the adjusting cylinder is respectively in threaded connection with the first ocular and the second ocular so that the distance between the first ocular and the second ocular is adjustable.

Further, a plurality of first clamping pieces are arranged on the observation chamber, and the display screen is in clamping connection with the observation chamber through the first clamping pieces.

Further, the distance adjusting barrel comprises a first internal thread section and a second internal thread section, wherein the first internal thread section is in threaded fit with the first ocular, and the second internal thread section is in threaded fit with the second ocular.

Further, the second eyepiece extends out of the eyepiece mounting bracket assembly along a direction away from the first eyepiece, and a rotating convex ring is arranged on the outer wall of the second eyepiece extending out of the mounting bracket assembly.

Further, the cross section of the inner hole of the observation chamber is gradually reduced along the direction from the display screen to the focusing and adjusting ocular.

Further, the eyepiece mounting bracket assembly further comprises an inner connecting frame and an outer connecting frame, the distance adjusting cylinder is arranged in the inner connecting frame, the inner connecting frame is arranged in the outer connecting frame, a rotation limiting structure is arranged between the distance adjusting cylinder and the shell assembly and/or between the distance adjusting cylinder and the observation chamber, the inner connecting frame is fixedly connected with the outer connecting frame, and the outer connecting frame is detachably fixed with the shell assembly and/or the observation chamber.

Further, the shell component is provided with a mounting port, the outer connecting frame is provided with second buckling pieces which are symmetrically arranged, the second buckling pieces are connected with the mounting port in a buckling mode, the outer connecting frame is further provided with first threaded portions which are arranged in a cross mode with the two second buckling pieces, and the first threaded portions are connected with the shell component through threaded connection.

Further, the outer wall of the second eyepiece is provided with a threaded portion, a concave portion and a rotary convex ring in sequence along the direction away from the first eyepiece, the outer diameter of the threaded portion is larger than that of the concave portion, the eyepiece mounting bracket assembly extends towards the concave portion and is provided with a blocking piece, and the blocking piece blocks the threaded portion from sliding out of the distance adjusting barrel.

Further, the portable electronic device further comprises a fixing seat assembly, wherein the fixing seat assembly is fixedly connected with the shell assembly and/or the observation chamber, and the fixing seat assembly is provided with a connecting screw hole.

Further, a battery is further arranged on one side of the accommodating cavity, where the infrared mirror is located, of the observation chamber, and the battery is electrically connected with the main control board assembly.

The utility model has the beneficial effects that: the observation chamber is arranged in the shell assembly, so that a better observation effect can be formed; the objective lens is a focusing objective lens, can focus according to the distance of an observed object, the focusing and adjusting ocular lens can adjust the focal length of the ocular lens, the first ocular lens and the second ocular lens can be adjusted in distance through the adjusting cylinder of the ocular lens mounting frame assembly, the first ocular lens and the second ocular lens can move, the first ocular lens can be adjusted in advance, the magnification factor is determined, and the second ocular lens can be actively adjusted by a user to carry out diopter adjustment; or both can be adjusted by the user, so that the user can adjust both the magnification and refraction. The first eyepiece and the second eyepiece are matched with each other, so that a large magnification factor can be realized by a short focal length, the volume of the night vision device is reduced, the small range of the diopter adjustment range is large, the diopter adjustment of about 800 degrees can be realized by adjusting the diopter adjustment range by 2.0mm, the resolution of a display picture is not greatly influenced, and the resolution of the display picture is not greatly reduced.

Drawings

FIG. 1 is a schematic diagram of a monocular night vision device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of another direction of a monocular night vision device according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a monocular night vision device according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a fitting structure of an observation chamber, an eyepiece mount assembly, and a focusing and adjusting eyepiece of a monocular night vision device according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an eyepiece mount assembly for a monocular night vision device according to an embodiment of the present utility model;

FIG. 6 is a schematic view of another orientation of an eyepiece mount assembly for a monocular night vision device according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a first eyepiece of a monocular night vision device according to an embodiment of the present utility model;

fig. 8 is a schematic structural diagram of a second eyepiece of a monocular night vision device according to an embodiment of the present utility model.

Description of the reference numerals:

100. a housing assembly; 110. a front shell; 120. a bottom case; 130. a decorative shell; 200. focusing objective lens;

300. an infrared mirror; 400. an observation chamber; 410. a first clamping piece; 420. a limit bump;

430. a screw joint seat; 510. a display screen; 520. a main control board assembly; 530. a battery;

600. an eyepiece mount assembly; 610. a distance adjusting cylinder; 611. a first internal thread segment;

612. a second internal thread segment; 613. a convex plate; 614. a first groove; 620. an inner connecting frame;

621. a second threaded portion; 622. a second groove; 630. an outer connecting frame; 631. a second clamping piece;

632. a first threaded portion; 640. a blocking member; 710. a first eyepiece; 711. a first lens;

712. a second lens; 713. a third lens; 714. a fourth lens; 720. a second eyepiece;

721. a first mirror body; 722. a second mirror body; 723. a third mirror body; 724. a fourth mirror body;

721. a threaded portion; 722. a recessed portion; 723. rotating the convex ring; 724. a plug-in part;

800. a holder assembly; 810. a base; 820. an internal threaded post; 900. an eyepiece cover;

910. adjusting the window; 920. and (5) an assembly groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, a monocular night vision device according to the present utility model will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-8, a monocular night vision device includes: a housing assembly 100 having a receiving chamber therein; a focusing objective lens 200 provided at one end of the housing assembly 100; an infrared mirror 300 disposed at one end of the housing assembly 100 in parallel with the objective lens; an observation chamber 400 connected to the housing assembly 100 and disposed in the accommodation chamber, the observation chamber 400 being provided so as to penetrate; a display screen 510 disposed at one end of the observation chamber 400 near the objective lens; the main control board component 520 is configured in the accommodating cavity and is electrically connected with the objective lens, the infrared mirror 300 and the display screen 510; an eyepiece mounting bracket assembly 600 coupled to the viewing chamber 400 and/or the housing assembly 100 at an end of the viewing chamber 400 remote from the display screen 510, the eyepiece mounting bracket assembly 600 comprising a distance adjustment barrel 610; the focusing and adjusting eyepiece comprises a first eyepiece 710 and a second eyepiece 720 which are coaxially arranged in sequence along a direction far away from the display screen 510, and the adjusting cylinder 610 is respectively in threaded connection with the first eyepiece 710 and the second eyepiece 720 so that the distance between the first eyepiece 710 and the second eyepiece 720 can be adjusted.

The observation chamber 400 is arranged in the shell assembly 100, so that a better observation effect can be formed; the objective lens is a focusing objective lens, the focusing can be carried out according to the distance of an observed object, the focusing and adjusting ocular lens can adjust the focal length of the ocular lenses, the first ocular lens 710 and the second ocular lens 720 can adjust the distance through the adjusting cylinder 610 of the ocular lens mounting frame assembly 600, the first ocular lens 710 and the second ocular lens 720 can move, the first ocular lens 710 can be adjusted in advance, the magnification factor is determined, and the second ocular lens 720 can be adjusted actively by a user to carry out diopter adjustment; or both can be adjusted by the user, so that the user can adjust both the magnification and refraction. The first eyepiece 710 and the second eyepiece 720 are matched with each other, so that a large magnification can be realized by a short focal length, the volume of the night vision device is reduced, the small range of the refraction adjustment travel is large, the refraction adjustment of about 800 degrees can be realized by a 2.0mm adjustment range, the resolution of a display picture is not greatly influenced, and the resolution of the display picture is not reduced in a large range.

First eyepiece 710 and second eyepiece 720 cooperate with each other, namely: the focal length ratio of the first eyepiece 710 to the second eyepiece 720 is controlled, so that the magnification of the eyepiece group can be freely designed, and the distance from the first eyepiece 710 to the display screen 510 is designed, so that the first eyepiece 710 can just observe the full screen of the display screen 510.

Referring to fig. 4, a plurality of first fastening members 410 are disposed on the viewing chamber 400, and the display 510 is fastened to the viewing chamber 400 by the first fastening members 410. Through the buckle connection, convenient assembling is quick. Preferably, at least a first fastening member 410 is disposed on each side of the observation chamber 400, and generally, the first fastening member 410 is an elastic fastening member.

Referring to fig. 3 and 6, the distance adjusting barrel 610 includes a first internal thread segment 611 and a second internal thread segment 612, the first internal thread segment 611 is in threaded engagement with the first eyepiece 710, and the second internal thread segment 612 is in threaded engagement with the second eyepiece 720. In general, external threads may be directly provided on the outer wall of the first eyepiece 710 and the outer wall of the second eyepiece 720 (the eyepieces generally include a lens/body and a barrel/body, the lens/body being disposed within the barrel/body, the outer wall being the outer wall of the barrel/body) for threaded engagement. Preferably, the outer diameter of the first eyepiece 710 is smaller than the outer diameter of the second eyepiece 720, and the inner diameter of the first internal thread section 611 is smaller than the inner diameter of the second internal thread section 612, i.e. the first internal thread section 611 and the second internal thread section 612 are stepped, so that pushing the first eyepiece 710 by the second eyepiece 720 as a way of adjusting by a user can be avoided, resulting in a magnification change.

Referring to fig. 1-4, second eyepiece 720 extends out of eyepiece mount assembly 600 in a direction away from first eyepiece 710, and second eyepiece 720 is provided with a rotating collar 723 on the outer wall of the extended mount assembly. That is, the first eyepiece 710 is adjusted in advance by the manufacturer, and the second eyepiece 720 is adjusted by the user, so that the adjustment difficulty is reduced, and the user can quickly adjust the diopter.

Referring to fig. 3, the cross section of the inner hole of the viewing chamber 400 gradually decreases along the direction from the display screen 510 to the focusing eyepiece. Such that viewing display screen 510 through viewing chamber 400 creates a unique visual effect.

Referring to fig. 3-6, the eyepiece mount assembly 600 further includes an inner connecting frame 620 and an outer connecting frame 630, the distance adjusting barrel 610 is disposed in the inner connecting frame 620, the inner connecting frame 620 is disposed in the outer connecting frame 630, a rotation limiting structure is disposed between the distance adjusting barrel 610 and the housing assembly 100 and/or the observation chamber 400, the inner connecting frame 620 is fixedly connected with the outer connecting frame 630, and the outer connecting frame 630 is detachably fixed with the housing assembly 100 and/or the observation chamber 400. That is, the eyepiece mount assembly 600 includes the distance adjusting cylinder 610, the inner connecting frame 620 and the outer connecting frame 630, and since the distance adjusting cylinder 610 needs to have accurate and durable internal threads, the material requirement is high, and the processing is convenient and the cost is reduced; the rotation of the distance adjusting cylinder 610 may be limited by a rotation limiting structure, which may be formed by a bump groove fitting structure or a screw locking structure; simply, a first groove 614 is provided on the outer wall of the distance adjusting cylinder 610, and a limit bump 420 adapted to the first groove 614 extends on the observation chamber 400; in particular, the inner connecting frame 620 is provided with a second groove 622, the second groove 622 is communicated with the first groove 614, the limit bump 420 is in limit fit with the first groove 614 and the second groove 622, preferably, the distance adjusting barrel 610 is provided with a convex plate 613, the first groove 614 is arranged on the convex plate 613 to reduce the height difference between the first groove 614 and the second groove 622, and in particular, the end face of the inner connecting frame 620 abuts against the convex plate 613. In particular, the inner link 620 is screw-coupled to the end surface of the viewing chamber 400.

Referring to fig. 3, 5 and 6, the housing assembly 100 has a mounting opening, the outer connecting frame 630 has second fastening members 631 symmetrically disposed, the second fastening members 631 are fastened to the mounting opening, the outer connecting frame 630 further has a first screw connection portion 632 disposed in a cross shape with the two second fastening members 631, and the first screw connection portion 632 is connected to the housing assembly 100 by screw connection. The second fastening piece 631 can be assembled in advance, and then locked by a screw, so that the assembly is quick and convenient. Simply, the second fastening member 631 is an elastic fastening hook, and the housing assembly 100 has a fastening slot adapted to the second fastening member 631. In particular, the inner connection frame 620 has a second screw portion 621 corresponding to the first screw portion 632, and a screw is screw-coupled to the housing assembly 100 through the first screw portion 632 and the second screw portion 621.

Referring to fig. 3 and 6, the outer wall of the second eyepiece 720 has a threaded portion 721, a recessed portion 722 and a rotating collar 723 in order along a direction away from the first eyepiece 710, the outer diameter of the threaded portion 721 is larger than the outer diameter of the recessed portion 722, and the eyepiece mounting bracket assembly 600 extends toward the recessed portion 722 to form a blocking member 640, wherein the blocking member 640 blocks the threaded portion 721 from sliding out of the distance adjustment cylinder 610. In particular, the blocking member 640 is a screw passing through the outer and inner connection frames 630 and 620.

Referring to fig. 1-3, the portable electronic device further includes a fixing base assembly 800, wherein the fixing base assembly 800 is fixedly connected with the housing assembly 100 and/or the observation chamber 400, and the fixing base assembly 800 has a connecting screw hole. In particular, the observation chamber 400 is provided with a screw base 430, the fixing base assembly 800 includes a base 810 and an internal screw post 820, the internal screw post 820 has a connection screw hole, the base 810 is connected with the screw base 430 in a screw manner, a mounting hole is provided in the middle of the base 810, the internal screw post 820 is assembled in the mounting hole, the internal screw post 820 can be made of a metal piece, so as to improve the service life of the internal screw post, and the housing assembly 100 has a avoidance hole for the base 810 to leak out. The holder assembly 800 is provided to facilitate connection to external equipment such as a helmet or a stand.

Referring to fig. 3, the in-accommodation chamber 400 is further provided with a battery 530 at a side of the infrared mirror 300, and the battery 530 is electrically connected to the main control board assembly 520. The battery 530 is disposed at one side of the observation chamber 400 where the infrared mirror 300 is located, so that the space can be reasonably allocated, and the volume of the battery 530 can be increased as much as possible to increase the capacity of the battery 530.

In simple terms, the focusing of the focusing objective lens 200 may be manual, referring to fig. 3, for example, an internal thread is provided in the housing assembly 100, an external thread is provided on the focusing objective lens 200, and the rotation is used to perform the thread movement focusing. Existing electric or other means may be employed as desired.

Generally, referring to fig. 1 to 3, the housing assembly 100 includes a front case 110 and a bottom case 120, the front case 110 and the bottom case 120 are detachably connected to each other to form a receiving cavity, and the front case 110 and the bottom case 120 may be connected by screwing or snapping. The bottom case 120 has a plurality of key holes for exposing keys. And a decorative case 130 may be further provided as needed, the decorative case 130 being provided on the bottom case 120, may be connected by adhesive,

in particular, referring to fig. 1-3, an eyepiece cover 900 is further included and is made of a flexible material, wherein the eyepiece cover 900 is coupled to the external coupling frame 630 and/or the second eyepiece 720. Providing the eyepiece cover 900 can protect the human eye and facilitate adjusting the distance between the human eye and the second eyepiece 720.

In particular, referring to fig. 1-3, eyepiece cover 900 has an adjustment window 910 through which a rotating collar 723 is exposed.

In particular, referring to fig. 3, the eyepiece cover 900 has a fitting groove 920, and the second eyepiece 720 has a plugging portion 724 adapted to the fitting groove 920.

Preferably, the distortion ratio of the first eyepiece and the second eyepiece is less than or equal to 1.5%.

It is understood that the first eyepiece 710 and the second eyepiece 720 each include at least one lens, or the first eyepiece 710 or the second eyepiece 720 can be formed by combining two lenses or two lenses as required. Referring to fig. 7, along a direction away from the display screen, the first eyepiece 710 includes a first lens 711, a second lens 712, a third lens 713 and a fourth lens 714 in order, the first eyepiece 710 composed of four lenses (2G 2P) has an effective focal length of 5.9mm, an optical back focal length of 2.93mm, an angle of view of 63 degrees, a focal number of 3.0, a distortion of 1.5%, a relative illuminance of 55% (y=1'), an image height of 7.3mm, and a lens configuration of 2G2P. Referring to fig. 8, along the direction approaching the display screen, the second eyepiece 720 includes a first lens 721, a second lens 722, a third lens 723, and a fourth lens 724 in sequence, wherein an effective focal length of the second eyepiece 720 formed by the four lenses is 12.55mm, a distortion ratio is less than 1%, a viewing angle is 86 degrees, an image height is 8mm, and a lens structure is 5G.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In summary, according to the monocular night vision device provided by the utility model, the observation chamber is arranged in the shell assembly, so that a better observation effect can be formed; the objective lens is a focusing objective lens, can focus according to the distance of an observed object, the focusing and adjusting ocular lens can adjust the focal length of the ocular lens, the first ocular lens and the second ocular lens can be adjusted in distance through the adjusting cylinder of the ocular lens mounting frame assembly, the first ocular lens and the second ocular lens can move, the first ocular lens can be adjusted in advance, the magnification factor is determined, and the second ocular lens can be actively adjusted by a user to carry out diopter adjustment; or both can be adjusted by the user, so that the user can adjust both the magnification and refraction. The first eyepiece and the second eyepiece are matched with each other, so that a large magnification factor can be realized by a short focal length, the volume of the night vision device is reduced, the small range of the diopter adjustment range is large, the diopter adjustment of about 800 degrees can be realized by adjusting the diopter adjustment range by 2.0mm, the resolution of a display picture is not greatly influenced, and the resolution of the display picture is not greatly reduced.

The present utility model is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalent changes and variations in the above-mentioned embodiments can be made by those skilled in the art without departing from the scope of the present utility model.

Claims

1. A monocular night vision device, comprising:

a housing assembly having a receiving cavity therein;

the focusing objective lens is arranged at one end of the shell component;

the infrared mirror is arranged at one end of the shell component in parallel with the objective lens;

the observation chamber is connected with the shell assembly and is arranged in the accommodating cavity, and the observation chamber is communicated;

the display screen is arranged at one end of the observation chamber, which is close to the objective lens;

the main control board assembly is configured in the accommodating cavity and is electrically connected with the objective lens, the infrared mirror and the display screen;

the eyepiece mounting frame assembly is connected with the observation chamber and/or the shell assembly and is positioned at one end of the observation chamber away from the display screen, and the eyepiece mounting frame assembly comprises a distance adjusting cylinder;

the focusing and adjusting ocular comprises a first ocular and a second ocular which are coaxially arranged in sequence along the direction far away from the display screen, and the adjusting cylinder is respectively in threaded connection with the first ocular and the second ocular so that the distance between the first ocular and the second ocular is adjustable.

2. The monocular night vision device of claim 1, wherein the viewing chamber is provided with a plurality of first fastening members, and the display screen is fastened to the viewing chamber by the first fastening members.

3. The monocular night vision device of claim 1, wherein the gauge barrel comprises a first internally threaded section and a second internally threaded section, the first internally threaded section being threadably engaged with the first eyepiece, the second internally threaded section being threadably engaged with the second eyepiece.

4. The monocular night vision device of claim 1, wherein the second eyepiece extends out of the eyepiece mount assembly in a direction away from the first eyepiece, the second eyepiece being provided with a rotating collar on an outer wall extending out of the mount assembly.

5. The monocular night vision device of claim 1, wherein the cross-section of the interior bore of the viewing chamber tapers in a direction from the display screen to the focusing eyepiece.

6. The monocular night vision device of claim 1, wherein the eyepiece mount assembly further comprises an inner connector and an outer connector, the distance-adjusting barrel is disposed within the inner connector, the inner connector is disposed within the outer connector, a rotation-limiting structure is disposed between the distance-adjusting barrel and the housing assembly and/or the viewing chamber, the inner connector is fixedly connected with the outer connector, and the outer connector is detachably secured with the housing assembly and/or the viewing chamber.

7. The monocular night vision device of claim 6, wherein the housing assembly has a mounting opening, the outer connecting frame has second fastening members symmetrically disposed, the second fastening members are fastened to the mounting opening, the outer connecting frame further has first screw-connection portions disposed in a cross with the two second fastening members, and the first screw-connection portions are connected to the housing assembly by screw-connection.

8. The monocular night vision device of claim 6, wherein the outer wall of the second eyepiece has a threaded portion, a recessed portion, and a rotating collar in sequence in a direction away from the first eyepiece, the threaded portion having an outer diameter greater than an outer diameter of the recessed portion, the eyepiece mount assembly extending toward the recessed portion with a blocking member that blocks the threaded portion from sliding out of the pitch barrel.

9. The monocular night vision device of claim 1, further comprising a mounting assembly fixedly coupled to the housing assembly and/or the viewing chamber, the mounting assembly having a coupling screw hole.

10. The monocular night vision device of claim 1, wherein the viewing chamber in the receiving chamber is further provided with a battery on a side of the infrared mirror, and the battery is electrically connected with the main control board assembly.