Binocular night vision goggles with objective lens protection

Abstract

The utility model discloses a binocular night vision goggles for protecting objective lenses, which relates to the technical field of night vision devices and comprises a goggles bracket, night vision goggles and objective lens sheaths. And the night vision goggles are rotationally connected to the lower part of the goggle frame and provided with objective lenses at one end and eyepieces at the other end. The objective lens sheath is clamped and fixed outside the objective lens, and a light reducing lens is arranged in the objective lens sheath, so that the objective lens is prevented from being damaged by strong light, and testing and internal state observation are not hindered. The objective lens sheath is composed of an end cover, a clamping ring, a support, a through hole and a light reducing lens, the end cover is provided with a sliding groove and a clamping groove to stably clamp the objective lens, the clamping ring is fixed outside the night vision goggles, the support is n-shaped to avoid the convex portion of the objective lens, and the through hole facilitates observation and testing. According to the night vision goggles, the durability and the use safety are improved, the maintenance and test process is simplified, and the night vision goggles are suitable for various scenes such as military, law enforcement, outdoor exploration and night driving.

Description

TECHNICAL FIELD

[0001] The utility model relates to binocular night vision device technical field, specifically is binocular night vision device of objective lens protection. BACKGROUND

[0002] In the night or low light conditions, in order to enhance the visual perception ability of observer, binocular night vision device is widely used in military, law enforcement, outdoor adventure and night driving and other fields. This kind of night vision device usually through the integration of advanced image enhancement technology or infrared sensing technology, so that the observer can clearly see the target in dim environment. However, although night vision device performs well in improving visual experience, its precise optical components, especially objective lens part, is extremely vulnerable to the damage of external environment, such as strong light irradiation, dust pollution and physical impact.

[0003] Traditional protection measures often rely on simple lens cover or protective cover, but these methods have many shortcomings. For example, lens cover is cumbersome in the case of needing to use night vision device frequently, and protective cover may hinder the test and internal state inspection of objective lens due to improper design. In addition, the lack of targeted light reduction measures also makes the objective lens vulnerable to irreversible damage when facing sudden strong light.

[0004] In addition, night vision device needs to magnify the existing light to achieve a clearer and brighter night vision picture, so its objective lens is usually designed with a very large optical light quantity, and the aperture usually reaches F1.2 or even F1.0 or more. The larger the aperture, the larger the depth of field, that is, the lens with larger light quantity will blur the background when focusing on the object in the near place. The night vision device without objective lens protection cover cannot be started in the daytime because the strong light will not pass through the internal lens of the objective lens to magnify and focus the light to the first intensifier tube in the body, resulting in damage or even scrap of the optical elements such as image intensifier tube. This results in that the user has no way to test the night vision device without objective lens protection in the daytime bright light. The existing technical solution is to open a very small hole on the completely closed lens cover to minimize the aperture (dispersed light) to protect the optical elements. However, the biggest problem and defect of this solution is that the small hole according to the solution will make the original aperture of the objective lens of the night vision device smaller, so the depth of field becomes deeper, that is, the image that should be blurred in the background after focusing on the object in the near place becomes clear in the near place and the far place. The biggest problem of this is that the user cannot test and pre-adjust the focus point of the night vision device in the daytime, for example, if the user wants to pre-adjust the focus of the night vision device to infinity in the daytime, but because of the defect of the existing solution, the user can see clearly in the near place and the far place in the daytime, so it is impossible to accurately adjust the focus to infinity.

[0005] Therefore, there is an urgent need in the market for an eyepiece protection solution that effectively protects the objective lens of the night vision goggles without hindering their daily use and testing. Such a solution needs to be able to withstand strong light exposure, prevent dust and moisture from entering, while maintaining the visibility of the internal state of the objective lens in order to perform the necessary maintenance and checks. SUMMARY

[0006] To this end, the utility model provides a kind of objective lens protection binocular night vision goggles to solve the above-mentioned problems in prior art.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of objective lens protection binocular night vision goggles, including frame, at least one rotationally connected in the lower part of frame night vision goggles, and objective lens sheath is fixed in the objective lens outside of night vision goggles, the objective lens sheath is built-in with light reduction lens.

[0008] Further, one end of the night vision goggles is provided as an objective lens, and the other end is provided as an eyepiece.

[0009] Further, the objective lens sheath includes an end cap, a clasp, a bracket, a through hole and a light reduction lens.

[0010] Further, the end cap is sleeved outside the objective lens, and a plurality of anti-skid grooves are formed around the outer surface of the end cap, and a plurality of clamping grooves matched with the groove structure of the outer surface of the objective lens are formed around the inner surface of the end cap.

[0011] Further, the clasp is clamped and fixed outside the night vision goggles, the bracket is connected between the end cap and the clasp, and the bracket is provided in the shape of a Chinese character "j" to avoid the protruding part of the objective lens.

[0012] Further, the through hole is preformed in the middle of the end cap, and the light reduction lens is installed and fixed inside the through hole to prevent strong light from damaging the objective lens and allow direct observation of the internal state of the objective lens through the through hole.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The objective lens protection binocular night vision goggles effectively solve the problem of insufficient protection of the objective lens of the traditional night vision goggles by adopting the objective lens sheath design with built-in light reduction lens, significantly improving the durability and safety of the night vision goggles. This design not only effectively prevents direct exposure of the objective lens to strong light, reducing the risk of damage to optical elements caused by strong light, but also allows testing and internal state observation of the objective lens without disassembling the sheath, greatly improving the maintenance convenience and practicality of the night vision goggles.

[0015] In addition, another advantage of the light reduction sheet and the enlarged opening is that the physical principle essentially does not completely reduce the aperture of the lens, but reduces the amount of light entering under the condition of ensuring the original aperture of the lens (or reducing the aperture by a little bit), which not only protects the optical elements of the night vision device from the strong light, but also retains the relationship between the focal point and the depth of field to a greater extent, so that the user can also test the focusing and pre-focusing of the night vision device in the daytime, thereby facilitating the operation at night. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can also be obtained according to the provided drawings without creative labor.

[0017] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0018] Figure 1 Split perspective view of the present application embodiment 1.

[0019] Figure 2 Split perspective view of the present application embodiment 1.

[0020] Figure 3 Split perspective view of the present application embodiment 1.

[0021] Figure 4 Split perspective view of the present application embodiment 1.

[0022] Figure 5 Split perspective view of the present application embodiment 1.

[0023] Figure 6 Split perspective view of the present application embodiment 1.

[0024] Figure 7 Split perspective view of the present application embodiment 2.

[0025] Figure 8It is the perspective view of the battery compartment in the front cover in the embodiment 2 of the utility model.

[0026] Figure 9 It is the split perspective view of the light supplement lamp in the embodiment 3 of the utility model.

[0027] Figure 10 It is the perspective view of the cap in the embodiment 3 of the utility model.

[0028] Figure 11 It is the perspective view of the mounting connecting piece in the embodiment 4 of the utility model.

[0029] Figure 12 It is the top view of the mounting connecting piece in the embodiment 4 of the utility model.

[0030] Figure 13 It is the bottom view of the mounting connecting piece in the embodiment 4 of the utility model.

[0031] Figure 14 It is the perspective view of the first visual angle of the objective lens sheath in the embodiment 5 of the utility model.

[0032] Figure 15 It is the perspective view of the second visual angle of the objective lens sheath in the embodiment 5 of the utility model.

[0033] In the drawing: 1, frame; 11, body; 111, hall inductor; 12, front cover; 121, reserved hole one; 122, reserved hole two; 123, light supplement lamp; 124, light-sensitive sensor; 125, cap; 126, lens; 13, rear cover; 14, battery compartment; 15, battery compartment cover; 16, handle; 17, short screw; 18, long screw; 2, rotating arm; 21, reserved groove; 22, magnet; 3, night vision mirror; 31, objective lens; 32, eyepiece; 4, mounting connecting piece; 41, main body; 42, lightening one groove; 421, round corner; 43, lightening two groove; 44, multifunctional reserved hole; 45, step groove; 46, convex part; 47, jack; 48, lightening one inclined surface; 49, lightening two inclined surface; 5, objective lens sheath; 51, end cover; 52, snap ring; 53, support; 54, through hole; 55, light reduction lens; 56, anti-skid groove; 57, clamping groove. DETAILED DESCRIPTION

[0034] The embodiments of the present application will be described in detail by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. Obviously, the described embodiments are part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0035] Embodiment 1

[0036] As Figures 1 to 6 shown, the utility model discloses a binocular night vision mirror of objective lens protection mainly comprises the frame 1, two rotating arms 2, two night vision mirrors 3, two magnets 22 and two hall inductors 111, wherein, two rotating arms 2 are connected on both sides of frame 1 through the pivot correspondingly, two night vision mirrors 3 are installed in the lower part of two rotating arms 2 correspondingly, two magnets 22 are embedded in the top of corresponding rotating arm 2, frame 1 includes mirror body 11, two hall inductors 111 are installed in the inside of mirror body 11 symmetrically, magnet 22 and hall inductor 111 form the non-rigid contact structure together, through the non-rigid contact structure, when any one rotating arm 2 drives corresponding night vision mirror 3 to deflect, the power-off and power-on of this night vision mirror 3 can be realized;

[0037] The top of rotating arm 2 is reserved to set up the reserved groove 21, magnet 22 is fixed in the inside of reserved groove 21, so that magnet 22 is not conspicuous on the top of rotating arm 2, and then will not affect the deflection of rotating arm 2;

[0038] The pivot connecting frame 1 and rotating arm 2 is the pivot of adjustable damping size, and the contact parts of pivot and frame 1, rotating arm 2 are all set with sealing rings, ensure that the rotating parts of frame 1, rotating arm 2 and pivot always keep dustproof and waterproof state, enrich the operation scene of whole night vision instrument, such as in rainy day and humid environment and in the environment with more dust.

[0039] The embodiment in use, in the feature that hall inductor 111 and magnet 22 form the non-rigid contact structure together, the detection range of hall inductor 111 is a sector area, the angle of the sector area is about 30 °, when realizing power-on and power-off, the specific process is as follows:

[0040] When the whole of night vision mirror 3 and rotating arm 2 rotates to eye portion, that is, rotates downward to a certain angle, magnet 22 will enter the 30 ° sector induction range of hall inductor 111, at this time, hall inductor 111 sends signal to the circuit in frame 1, so that the night vision mirror 3 of this side is powered on automatically, and for the same reason, when the whole of night vision mirror 3 and rotating arm 2 rotates away from eye portion, that is, rotates upward, once magnet 22 is not in the 30 ° sector induction range of hall inductor 111, hall inductor 111 will not capture the magnetic field emitted by magnet 22, at this time, the signal will be automatically transmitted to the circuit, so that the night vision mirror 3 of this side is powered off automatically, thereby realizing the power-on or power-off function of night vision mirror 3 in use or non-use state.

[0041] Embodiment 2

[0042] As Figures 7 to 8As shown in the utility model discloses a kind of binocular night vision glasses of objective lens protection, frame 1 is mainly composed of mirror body 11, front cover 12, rear cover 13, front cover 12 and rear cover 13 are installed on the both sides of mirror body 11 by bolt, that is, front cover 12 and rear cover 13 can protect mirror body 11 when installation, front cover 12 and rear cover 13 are disassembled, it can be replaced, in addition, battery compartment 14 is fixedly installed in the inside of front cover 12, the installation direction of battery compartment 14 is perpendicular to front cover 12, and the tail end of battery compartment 14 extends to the inside of mirror body 11, by the reasonable layout of the position of battery compartment 14, the volume of entire binocular night vision instrument is greatly reduced, and the space occupied by battery compartment 14 itself is also reduced simultaneously;

[0043] Cavity is reserved in the inside of mirror body 11, the tail end of battery compartment 14 is located in the inside of cavity, battery compartment cover 15 is connected by screw thread at the port of battery compartment 14, handle 16 is rotatably connected to the outside of battery compartment cover 15;

[0044] Bolt is divided into long screw 18 and short screw 17 two kinds, mirror body 11 and front cover 12 are connected and fixed by several short screws 17, mirror body 11 and rear cover 13 are connected and fixed by several long screws 18.

[0045] Example 3

[0046] As Figure 1 、 Figures 9 to 10 As shown in the utility model discloses a kind of binocular night vision glasses of objective lens protection, mainly by front cover 12, light supplementing lamp 123, photosensitive sensor 124, cap 125 are composed, wherein, light supplementing lamp 123 and photosensitive sensor 124 are all inlayed and installed at the bottom of front cover 12, cap 125 is fixedly connected with front cover 12 by screw thread outside light supplementing lamp 123, lens 126 is installed in the inside of the end of cap 125 away from front cover 12, lens 126 is convex lens or concave lens, according to different light source and scene, cap 125 with different lens can be selected to be practical, improve the ability of binocular night vision glasses to adapt to environment, so as to ensure that light supplementing lamp can stably and continuously exert its illumination function, the outer end of cap 125 protrudes from handle 16, a part of protrusion can effectively prevent the handle of battery compartment cover, the light emitted by light supplementing lamp 123 is shielded when moving, this protruding layout not only realizes ingenious planning in space utilization, more greatly improves the convenience and reliability of light supplementing lamp use in actual operation;

[0047] In addition, the bottom of the front cover 12 has reserved holes 121 and 122 respectively. The fill light 123 and the photosensitive sensor 124 are installed inside the reserved holes 121 and 122 respectively. In other words, the fill light 123 and the photosensitive sensor 124 can be hidden in the front cover 12 to avoid damage to the fill light 123 and the photosensitive sensor 124 due to collisions or other external factors.

[0048] The front cover 12 also has a reserved battery compartment 14 inside. The port of the battery compartment 14 is threaded to the battery compartment cover 15, and the end of the battery compartment cover 15 is movably connected to the handle 16. At least one night vision goggle 3 is connected to the lower part of the front cover 12. One end of the night vision goggle 3 is set as the objective lens 31, and the other end is set as the eyepiece 32. It should be noted that the supplementary light 123, the photosensor 124, and the cap 125 are all set on the same side as the objective lens 31, so as to facilitate supplementary lighting of the external environment and perception of ambient light.

[0049] Example 4

[0050] like Figures 11 to 13 As shown, this utility model discloses a binocular night vision goggles with objective lens protection. The upper part of the frame 1 is fitted with a mounting connector 4 via several bolts. The mounting connector 4 includes a main body 41. A weight-reduction groove 42 is pre-formed in the upper part of the main body 41, with rounded corners 421 at each corner. Several weight-reduction grooves 43 are pre-formed along the edge of the main body 41. A multi-functional pre-formed hole 44 is pre-formed inside the main body 41, communicating with the weight-reduction groove 42. Besides its weight-reduction function, the multi-functional pre-formed hole 44 can also serve as a charging port. The gas clearance hole is set at the top of the binocular night vision goggle, which is a through hole for filling with nitrogen. The opening of the multi-functional reserved hole 44 allows the nitrogen through hole to be exposed, which is convenient for filling with nitrogen. This improves the practicality and flexibility of the connector and meets the needs of different application scenarios. Several bolt mounting positions are reserved inside the main body 41 and around the multi-functional reserved hole 44. The end of the main body 41 is symmetrically opened with a weight reduction first slope 48, and the bottom of both sides of the main body 41 is opened with a weight reduction second slope 49. The opening angle of the weight reduction first slope 48 and the weight reduction second slope 49 is set to 45°.

[0051] By setting up the aforementioned weight reduction slot 42, several weight reduction slots 43, multi-functional reserved holes 44, several bolt mounting positions, several weight reduction slopes 48 and several weight reduction slopes 49, the overall weight of the main body 41 can be significantly reduced. This not only reduces the burden on the wearer, but also improves the comfort of wearing for a long time and avoids neck and head fatigue caused by excessive weight.

[0052] The bolt mounting position is composed of a stepped groove 45 reserved and opened at the bottom end of the first weight-reducing groove 42, a protruding portion 46 integrally connected at the bottom of the main body portion 41, and a jack 47 jointly opened by the main body portion 41 and the stepped groove 45, wherein the stepped groove 45 and the jack 47 are communicated, the stepped groove 45 can hide the head of the bolt, and the installation of the connecting piece on the binocular night vision mirror can be completed by inserting the bolt into the bolt mounting position.

[0053] Embodiment 5

[0054] As shown in Figure 1 , Figures 14 to 15 The utility model discloses a binocular night vision mirror of objective lens protection mainly comprises frame 1, night vision mirror 3 and objective lens sheath 5, wherein, the number of night vision mirror 3 needs to set at least one, and night vision mirror 3 is rotatably connected in the lower part of frame 1, and one end of night vision mirror 3 is arranged as objective lens 31, and the other end is arranged as eyepiece 32, and objective lens sheath 5 is clamped and fixed at the outside of objective lens 31, and light reduction lens 55 is installed in objective lens sheath 5, and light reduction lens 55 can protect objective lens 31, and also does not affect the test of objective lens 31 from the outside, and the internal state of objective lens 31 can be directly observed through light reduction lens 55, and specifically,

[0055] Objective lens sheath 5 is composed of end cover 51, snap ring 52, support 53, through -hole 54 and light reduction lens 55, wherein, end cover 51 is sleeved at the outside of objective lens 31, a plurality of anti -skid grooves 56 are formed on the periphery of the outer surface of end cover 51, and a plurality of clamping grooves 57 are formed on the periphery of the inner surface of end cover 51, the clamping groove 57 is matched with the groove structure formed on the outer surface of objective lens 31, so as to realize the effect that end cover 51 is clamped and fixed at the outside of objective lens 31, snap ring 52 is clamped and fixed at the outside of night vision mirror 3, support 53 is connected between end cover 51 and snap ring 52, and is arranged as " several " characters, can avoid the protruding part of objective lens 31, through -hole 54 is reserved and opened in the middle part of end cover 51, and light reduction lens 55 is installed and fixed in through -hole 54;

[0056] When not using, the objective lens sheath 5 is sleeved at the outside of the objective lens 31, the through -hole 54 can prevent the strong light irradiation from causing damage to the objective lens 31, in addition, because of the existence of the through -hole 54, when needing to test the objective lens 31, it can be completed without removing the objective lens sheath 5, and the internal state of the objective lens 31 can be directly observed through the through -hole 54.

[0057] Although the utility model has been described in detail by general description and specific embodiments above, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model, all belong to the scope of the utility model claimed.

[0058] The terms such as "upper", "lower", "left", "right", "middle" and the like cited in the present specification are merely for the convenience of clear description, and are not intended to limit the scope of the present application. Changes or adjustments of the relative relationship without substantial changes in the technical content are also considered as the scope of the present application.

Claims

1. An objective-protected binocular night vision goggle, characterized in that, The utility model relates to a night vision device, including frame (1), at least one rotation connection in the lower part of frame (1) night vision mirror (3), and the objective lens cover (5) of engagement fixed in the outside of objective lens (31) of night vision mirror (3), the objective lens cover (5) inbuilt has light reduction lens (55).

2. The binocular night vision device of claim 1, wherein, One end of the night vision mirror (3) is provided with an objective lens (31), and the other end is provided with an ocular lens (32).

3. The binocular night vision device of claim 1, wherein, The objective lens cover (5) includes an end cover (51), a snap ring (52), a bracket (53), a through hole (54) and a light reduction lens (55).

4. The binocular night vision device of claim 3, wherein, The end cover (51) is sleeved on the outside of the objective lens (31), and a plurality of anti-skid grooves (56) are formed on the outer surface of the end cover (51), and a plurality of clamping grooves (57) are formed on the inner surface of the end cover (51) and matched with the groove structure on the outer surface of the objective lens (31).

5. The binocular night vision device of claim 3, wherein, The snap ring (52) is clamped and fixed on the outside of the night vision mirror (3), the bracket (53) is connected between the end cover (51) and the snap ring (52), and the bracket (53) is provided in the shape of "J" to avoid the protruding part of the objective lens (31).

6. The binocular night vision device of claim 3, wherein, The through hole (54) is provided in the middle of the end cover (51), the light reduction lens (55) is installed and fixed in the through hole (54), which prevents the damage of strong light to the objective lens (31) and allows direct observation of the internal state of the objective lens (31) through the through hole (54).

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