WO2024040417A1 - 微光夜视仪 - Google Patents

微光夜视仪 Download PDF

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Publication number
WO2024040417A1
WO2024040417A1 PCT/CN2022/114076 CN2022114076W WO2024040417A1 WO 2024040417 A1 WO2024040417 A1 WO 2024040417A1 CN 2022114076 W CN2022114076 W CN 2022114076W WO 2024040417 A1 WO2024040417 A1 WO 2024040417A1
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WO
WIPO (PCT)
Prior art keywords
low
light
barrel
front cover
infrared
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Application number
PCT/CN2022/114076
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English (en)
French (fr)
Inventor
韩玥
姚瑶
Original Assignee
烟台艾睿光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 烟台艾睿光电科技有限公司 filed Critical 烟台艾睿光电科技有限公司
Priority to PCT/CN2022/114076 priority Critical patent/WO2024040417A1/zh
Publication of WO2024040417A1 publication Critical patent/WO2024040417A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/12—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification

Definitions

  • the present application relates to the technical field of night vision devices, and in particular to a low-light night vision device.
  • the low-light night vision system uses the image intensifier as the core component to amplify the weak moonlight, starlight, atmospheric glow, etc. reflected by the target scene, thereby obtaining a bright scene image that can be observed by the human eye.
  • the low-light image intensifier is an optoelectronic device composed of an intensifier tube and a high-voltage power supply through a potting process.
  • the imaging principle is that the photocathode converts the optical image into an electronic image, and the electronic optical imaging system (electrode system) transfers the electronic image to
  • the fluorescent screen enhances the electron energy during the transmission process and completes the scaling of the geometric size of the electronic image.
  • the fluorescent screen completes electro-optical conversion, that is, converts the electronic image into a visible light image.
  • the advantage is that its photoelectric imaging surface is a continuous target surface, with high resolution, clear imaging, and visual capabilities close to the visual effects of the human eye. According to the development stage, it can be divided into: first generation, second generation, third generation and second and a half generations.
  • this application provides a low-light night vision device that can be adapted to different image intensifiers and is convenient for users to assemble and replace.
  • An embodiment of the present application provides a low-light night vision device, including a first monocular group, where the first monocular group includes:
  • the housing includes a front cover and a lens barrel, and the front cover is installed at the front opening of the lens barrel;
  • a low-light objective lens group is installed on the front cover and defines a low-light optical axis
  • the image intensifier bracket is arranged at the rear end of the low-light objective lens group along the low-light optical axis, is detachably connected to the front cover, and includes a mounting barrel, an adjusting screw ring and an elastic member.
  • the mounting barrel It is used to install an image intensifier in the following manner: the front end of the image intensifier is in contact with the front cover, and the rear end of the image intensifier is in contact with the rear end of the installation barrel through the elastic member;
  • An eyepiece group is arranged at the rear end along the low-light optical axis
  • the two ends of the adjusting screw ring along the direction of the low-light optical axis are respectively connected with the front cover and the installation barrel through reverse threads, so that when the adjusting screw ring is rotated, the installation The barrel and the front cover move toward or away from each other along the direction of the low-light optical axis.
  • a threaded interface is formed at the rear end of the front cover, and a barrel mouth thread is provided at the front end of the installation barrel.
  • the barrel mouth thread has an opposite spiral direction to the external thread of the threaded interface; the adjustment
  • the inner wall of one end of the screw ring facing the mounting barrel is provided with a first internal thread threadedly connected to the barrel mouth.
  • the inner wall of the adjusting screw ring facing the front cover is provided with a first internal thread threaded to the threaded interface.
  • the spiral directions of the first internal thread and the second internal thread are opposite. .
  • the adjusting spiral ring has an annular structure larger than the outer wall of the image intensifier, the surface of the adjusting spiral ring is provided with diagonal knurling, and the barrel wall of the adjusting spiral ring is surrounded by the The low-light optical axis has multiple small holes for observing the installation position.
  • the front cover is provided with a low-light mirror hole for installing the low-light objective lens group, and the rear end of the low-light mirror hole forms the threaded interface around the axis of the low-light mirror hole.
  • the threaded interface extends around the low-light mirror hole from the rear end along the low-light optical axis, and the front end of the image intensifier is in contact with the end surface of the threaded interface.
  • the side wall of the threaded interface is provided with a positioning notch that opens toward the rear end, and a lug protrudes from the front end of the mounting barrel, and the lug snaps into the low-light optical axis direction. in the positioning gap to constrain the rotational freedom of the mounting barrel around the low-light optical axis.
  • the installation barrel is cylindrical and has a hollow.
  • a mounting post for mounting the main control board is provided on the outer wall of the mounting barrel.
  • the main control board is integrated with a power supply circuit that supplies power to the image intensifier.
  • the main control board is detachably equipped with a power supply elastic piece through a conductive screw.
  • the power supply elastic piece is released from the hollow. It extends into the inside of the installation tube and comes into contact with the contact points of the image intensifier.
  • the first monocular lens group further includes an infrared lens group and an image combiner
  • the low-light night vision device further includes a display component
  • the infrared lens group is installed on the front cover and defines An infrared optical axis parallel to the low-light optical axis
  • the image combiner is arranged between the image intensifier and the eyepiece group along the low-light optical axis
  • the display component is arranged on a side of the image combiner
  • the image combiner is fixedly connected to the rear end of the mounting barrel to form an integrated bracket with the mounting barrel.
  • the image combiner includes an optical lens and a metal frame, and the metal frame covers the optical lens; the display component is directly fixed to the image combiner to form an integral body, or the
  • the metal frame is provided with a display screen bracket for fixing the display component, and the display component is installed on the display screen bracket through an adjustment gasket.
  • the front cover is flat and has an infrared lens hole for installing the infrared lens group.
  • the infrared lens group includes an infrared objective lens arranged along the infrared optical axis, an infrared objective lens flange, Flange sealing ring and infrared detector, the infrared objective lens is fixed in the infrared objective lens flange, and the infrared objective lens flange is installed from the front end to the infrared mirror hole on the front cover through the flange sealing ring , the infrared detector is installed to the infrared mirror hole from the rear end.
  • the front cover is installed at the front opening of the lens barrel through a front end cover sealing ring
  • the eyepiece group is installed at the rear end of the lens barrel through an eyepiece end sealing foam pad.
  • a second monocular group is further included, and the first monocular group and the second monocular group are connected through a connecting bridge group.
  • the first monocular group further includes a bridge interface piece for connecting to the connecting bridge group, and the bridge interface piece is installed at the opening at the top of the lens barrel through a bridge interface sealing ring.
  • the low-light night vision device provided by the embodiments of this application has at least the following beneficial effects:
  • This application provides a low-light night vision device that uses an image intensifier bracket to detachably connect the image intensifier to the front cover.
  • the bracket can install, replace, and adjust the image intensifier, and can adapt to different image intensifiers;
  • the image intensifier bracket has the characteristics of small size, simple structure, high stability, and good disassembly and assembly repeatability, allowing users to disassemble and replace by themselves.
  • Figure 1 is a schematic three-dimensional structural diagram of a low-light night vision device according to an embodiment of the present application
  • Figure 2 is a schematic three-dimensional structural diagram of the right eyepiece group of the low-light night vision device in Figure 1;
  • Figure 3 is an exploded structural diagram of the right eyepiece group in Figure 2;
  • Figure 4 is a partial side structural schematic diagram of the right eyepiece group in Figure 3 installed on the front cover;
  • Figure 5 is an exploded structural diagram of the part installed on the front cover in Figure 4.
  • Figure 6 is a schematic three-dimensional structural diagram of the installation tube and image combiner in Figure 5;
  • FIG. 7 is a schematic three-dimensional structural diagram of the mounting tube and the image combiner in FIG. 6 from another angle.
  • Front cover 111 lens barrel 112, front end cover sealing ring 113, eyepiece end sealing foam pad 114, bridge interface sealing ring 115;
  • Low-light mirror hole 1111 infrared mirror hole 1112, threaded interface 1113, positioning gap 1114;
  • Infrared objective lens 131 infrared objective lens flange 132, flange sealing ring 133, infrared detector 134;
  • Eyepiece lens group 141 Eyepiece hand wheel 142;
  • first internal thread 1621 second internal thread 1622;
  • Low light night vision device 100 Low light night vision device 100.
  • connection should be understood in a broad sense.
  • connection or integral connection; it can be directly connected, or indirectly connected through an intermediary, or it can be internal connection between two components.
  • connection or integral connection; it can be directly connected, or indirectly connected through an intermediary, or it can be internal connection between two components.
  • the structural size differences of low-light image intensifiers of different specifications are mainly reflected in the length of the device and the positions of the phosphor screen and cathode surface.
  • Existing night vision devices generally use a fixed position of the image intensifier, and then perform optical debugging through focus compensation of the eyepiece and objective lens. Specifically, the parallax is compensated by adjusting the relative position of the eyepiece and the fluorescent screen (for example, if the human eye is myopic, it can also be adjusted by adjusting the relative position of the eyepiece and the fluorescent screen.
  • Adjust the eyepiece for clear observation compensate for aberrations by adjusting the relative position of the objective lens and the cathode surface (for example, the position of the imaging surface changes due to different states of the optical lens at different temperatures, making the image blurry, which can be corrected by adjusting the objective lens).
  • This application provides a low-light night vision device that can be adapted to a variety of low-light image intensifiers and ensures the stability of the optical system.
  • FIG. 1 is a schematic structural diagram of a low-light night vision device 100 provided by an embodiment of the present application.
  • the illustrated low-light night vision device 100 includes a right eyepiece group 10 (i.e., a first monocular group), a left eyepiece group 20 (i.e., a second monocular group), and a connecting bridge group 30.
  • the right eyepiece group 10 and the left eyepiece The groups 20 are connected through the connecting bridge group 30 to form a binocular dual-channel night vision imager.
  • the right eyepiece group 10 for low-light and infrared dual-light fusion imaging is shown in the figure. It integrates a low-light objective lens group 12 for realizing low-light night vision, an infrared lens group 13 for thermal imaging, and a The bridge interface piece 15 of the Eurowing flip function is connected to the connecting bridge group 30, thereby connecting the right eyepiece group 10 and the left eyepiece group 20 into one body. Therefore, the low-light night vision device 100 is a binocular dual-channel, dual-light fusion night vision imager, and has functions such as horizontal and upward flips and gull-wing flips.
  • the right eyepiece group 10 includes a housing 11, a low-light objective lens group 12, an infrared lens group 13, an eyepiece group 14, a bridge interface piece 15, a main control board 101, an image intensifier bracket 16, Display component 17, image intensifier 18 and antenna component 19, among which, low-light objective lens group 12, infrared lens group 13, eyepiece group 14 and bridge interface piece 15 are installed on the housing 11, main control board 101, image intensifier bracket 16 , the display component 17, the image intensifier 18 and the antenna component 19 are installed inside the housing 11.
  • the image intensifier 18 may not be provided inside the right eyepiece group 10. After purchasing the product, consumers can purchase and install the image intensifier according to their personal preferences before use.
  • the housing 11 includes a front cover 111 and a lens barrel 112.
  • the front cover 111 is installed at the front opening of the lens barrel 112 through a front end cover sealing ring 113.
  • the eyepiece group 14 is installed at the rear of the lens barrel 112 through an eyepiece end sealing foam pad 114.
  • the bridge interface piece 15 is installed at the opening at the top of the lens barrel 112 through the bridge interface sealing ring 115, thereby achieving structural sealing inside the housing 11 and ensuring the sealing of the overall structure of the right eyepiece group 10.
  • the low-light objective lens group 12 and the infrared lens group 13 are installed on the front cover 111.
  • the image intensifier bracket 16 is adjustably connected to the front cover 111.
  • the eyepiece group 14, the display component 17, the image intensifier 18 and the main control board 101 are all installed on the image intensifier bracket 16, and the antenna assembly 19 is installed in the lens barrel 112.
  • the front cover 111 is in the shape of a flat plate that closes the front opening of the lens barrel 112. It has a low-light lens hole 1111 and an infrared lens hole 1112, which are used to install the low-light objective lens group 12 and the infrared lens group 1112 respectively.
  • the lens group 13, the low-light objective lens group 12, and the infrared lens group 13 are installed side by side on the front cover 111 in such a way that the low-light optical axis and the infrared optical axis are parallel. Since the low-light objective lens group 12 and the infrared lens group 13 are located on the same plane of the front cover 111, the installation and adjustment of the optical system is very simple.
  • the rear end of the low-light mirror hole 1111 is formed with a threaded interface 1113 around the axis of the low-light mirror hole 1111 (the low-light optical axis) for installation and adjustment of the image intensifier bracket 16 .
  • the side wall of the threaded interface 1113 is also provided with a positioning notch 1114 that opens toward the rear end. In the illustrated embodiment, two positioning notches 1114 are arranged in the diameter direction of the threaded interface 1113 .
  • a threaded interface 1113 connected to the image intensifier bracket 16 is directly designed on the front cover 111, adopting an integrated design that can reduce adapters and be more stable.
  • the thickness of the bottom of the threaded interface 1113 also enhances the overall appearance of the front cover 111. Structural strength. At the same time, many rib structures can be added to the surface of the front cover 111 to achieve the purpose of reducing thickness and weight without affecting the overall strength.
  • the infrared lens group 13 includes an infrared objective lens 131, an infrared objective lens flange 132, a flange sealing ring 133 and an infrared detector 134.
  • the infrared objective lens 131 is fixed in the infrared objective lens flange 132, and the infrared objective lens flange 132 passes through the flange sealing ring 133.
  • the front end is installed into the infrared mirror hole 1112 on the front cover 111 , and the infrared detector 134 is installed along the infrared optical axis to the rear end of the infrared mirror hole 1112 for sensing the infrared light focused by the infrared objective lens 131 .
  • the existing infrared objective lens and infrared detector are generally installed on both sides of the cover or casing.
  • the entire infrared lens group is connected in series through the cover plate or casing.
  • Infrared imaging is performed by adjusting the relative position between the infrared objective lens and the infrared detector. Imaging adjustment.
  • the infrared objective lens 131 is not directly installed on the front cover 111, but is installed on the front cover 111 through the infrared objective lens flange 132.
  • the infrared objective lens flange 132 is moved (carrying the infrared objective lens 131).
  • Infrared imaging position adjustment is safer than directly moving the infrared detector in the existing technology, and can protect the relatively fragile infrared detector.
  • the eyepiece group 14 includes an eyepiece lens group 141 and an eyepiece handwheel 142.
  • the eyepiece lens group 141 is installed on the image intensifier bracket 16 along the low-light optical axis and protrudes from the rear end of the lens barrel 112.
  • the eyepiece handwheel 142 is installed to the eyepiece from the rear end.
  • On lens set 141 Existing eyepieces are generally installed directly on the housing, but thin-shell mechanisms are prone to stress and deformation. In the illustrated embodiment, in order to improve the stability of the imaging optical system, this mechanism directly connects the eyepiece lens set 141 to the image intensifier.
  • the camera bracket 16 (the upper image combiner 163) is assembled together, and the eyepiece end sealing foam pad 114 is used for sealing and buffering between the lens barrel 112 and the eyepiece end sealing foam pad 114 to reduce the impact of the deformation of the lens barrel 112 on the optical mechanism.
  • the eyepiece lens group 141 abandons the conventional end-face installation method and is installed on the image intensifier bracket 16 through side locking screws, thereby achieving the purpose of reducing the diameter of the lens group.
  • the low-light objective lens group 12 and the image intensifier 18 are the main components of the low-light night vision system of the low-light night vision device 100; the infrared lens group 13, namely the infrared objective lens 131 and the infrared detector 134, are the main components of the thermal imaging system;
  • the image intensifier bracket 16 (the upper image combiner 163), the display component 17 and the eyepiece lens group 141 are the main components of the combined image display system.
  • the three optical systems of the low-light night vision system, the thermal imaging system and the combined image display system are all installed on the front cover 111, forming the module shown in Figure 4, making the overall structure very compact.
  • the image intensifier bracket 16 is disposed at the rear end of the low-light objective lens group 12 along the low-light optical axis, and is detachably installed with the front cover 111 .
  • the image intensifier bracket 16 includes a mounting barrel 161 , an adjusting screw ring 162 , an image combiner 163 and an elastic member 164 .
  • the installation barrel 161 is the main part for accommodating the image intensifier 18 .
  • One end of the adjustment screw ring 162 is screwed to the front end of the installation barrel 161 and the other end is screwed to the threaded interface 1113 at the rear end of the front cover 111 .
  • the elastic member 164 is provided at the bottom of the installation barrel 161 and is placed between the image intensifier 18 and the image combiner 163 to ensure the stable installation of the image intensifier 18 and cooperate with the adjustment screw ring 162 to adjust the position in the low-light optical axis direction.
  • the rear end of the installation barrel 161 is the image combiner 163, and the front end is an opening for the image intensifier 18 to be put in and is provided with barrel threads 1611. With reference to Figure 6, the front end of the installation barrel 161 protrudes forward with a lug 1613.
  • Mounting posts 1614 are provided on the outer wall of 161.
  • the image combiner 163 and the mounting tube 161 for mounting the image intensifier 18 are combined into the image intensifier bracket 16. This integrated design also makes the support structure more stable.
  • the installation tube 161 adopts a cylindrical skeleton structure to firmly protect the image intensifier 18 in the middle.
  • the skeleton structure is made of ultra-light magnesium alloy material, and the weight is further reduced through the hollow 1612 opened in the installation tube 161 .
  • the image intensifier 18 is installed through the opening at the front end of the mounting barrel 161.
  • the lug 1613 at the front end passes through the adjusting screw ring 162 and snaps into the positioning notch 1114 opened on the threaded interface 1113, thereby constraining the rotation of the mounting barrel 161 around the low-light optical axis. degrees of freedom.
  • a first internal thread 1621 is provided on the inner wall of one end of the adjusting screw ring 162 facing the mounting barrel 161 to be threadedly connected with the barrel mouth thread 1611 of the mounting barrel 161 .
  • a second internal thread 1622 is provided on the inner wall of the other end of the adjusting screw ring 162 facing the front cover 111.
  • the second internal thread 1622 is threadedly connected to the threaded interface 1113 on the front cover 111 to connect the installation barrel 1611 to the front cover.
  • the plates 111 are connected along the direction of the low-light optical axis.
  • the internal thread spiral directions of the first internal thread 1621 and the second internal thread 1622 are opposite.
  • the barrel thread 1611 and the external thread spiral direction of the threaded interface 1113 are opposite.
  • the first internal thread 1621 and the barrel thread 1611 are inversely connected with the second internal thread. 1622 and the threaded interface 1113 form threaded threads in opposite directions.
  • the positions of the mounting barrel 161 and the image combiner 163 relative to the front cover 111 on the low-light optical axis change.
  • the front end of the image intensifier 18 abuts the end surface of the threaded interface 113
  • the rear end abuts the bottom of the installation barrel 161 through one end of the elastic member 164 .
  • the mounting barrel 161 and the front cover 111 move toward or away from each other, and the position of the image combiner 163 fixedly connected to the mounting barrel 161 also changes accordingly.
  • the adjustable image combiner 163 and the image intensifier The relative distance between the intensifiers 18 can also be adapted to different types of image intensifiers 18.
  • the adjusting screw ring 162 is the key to adapting to different types of image intensifiers. Through the cooperation of the adjusting screw ring 162, the elastic member 164, the mounting barrel 161 and the front cover 111, the image combiner 163 and the image intensifier 18 can be adjusted in low light. relative position along the axis.
  • the adjusting screw ring 162 adopts an annular structure that is evenly larger than the outer wall of the image intensifier 18 , and is a structural form that minimizes the overall diameter of the right eyepiece group 10 .
  • the adjusting screw ring 162 is also the key to connecting the entire right eye low-light objective lens group.
  • the adjusting screw ring 162 can be made of aluminum alloy material with higher hardness, and diagonal knurling can be added to the surface to increase friction and facilitate hand tightening. Four small holes can also be opened on the barrel wall of the adjusting screw ring 162 around the low-light optical axis, so that the installation position can be observed.
  • the image combiner 163 is a prism-type image combiner device composed of a metal frame 1632 and an optical lens 1631, and is located between the eyepiece group 14 and the image intensifier 18.
  • the image combiner 163 adopts a metal all-covered prism design to protect the internal optical lens 1631.
  • Existing image combiners are generally installed directly inside the casing, which is easily affected by the deformation of the casing. Moreover, it is inconvenient to install and debug when the inner barrel of the casing is deep.
  • integrating the image combiner 163 and the mounting tube 161 can reduce the number of adapters between the image combiner 163 and the image intensifier 18 , making the overall mechanism more stable and making the image combiner 163 Debugging can be carried out without cover, reducing the difficulty of assembly and adjustment.
  • the metal frame 1632 of the image combiner 163 can also be integrated with a display screen bracket for fixing the display assembly 17 , so that the display assembly 17 can be directly installed on the metal frame 1632 of the image combiner 163 .
  • the elastic member 164 is disposed in the installation barrel 161 and resists the end of the image intensifier 18 away from the adjustment screw ring 162, so that the image intensifier 18 can be positioned and compatible with different image intensifiers 18 in the direction of the low-light optical axis. size difference.
  • the elastic member 164 is a spring leaf, and the part on the low-light optical axis is hollowed out, which does not affect the light propagation along the low-light optical axis.
  • the elastic member 164 may also be a compression spring or an elastic rubber pad with a hole, which are not listed here.
  • the display component 17 is signally connected to the infrared detector 134 to receive the thermal image of the infrared light sensed by the infrared detector 134 and display it.
  • the display assembly 17 includes an OLED screen and a screen bracket.
  • the screen bracket completely wraps up the OLED screen for protection, and is installed on the mounting tube 161 to correspond to the position of the image combiner 163 .
  • the display component 17 and the image combiner 163 can be designed to be integrated.
  • the display assembly 17 is separated from the image combiner 163 fixed on the mounting barrel 161, and the distance between the display assembly 17 and the image combiner 163 can be adjusted by adjusting the gasket. Adjust the relative position to complete the infrared and low-light imaging.
  • the main control board 101 is fixed on the mounting post 1614 on the installation tube 161 through fasteners, thereby fixing the main control board 101 to the wall of the installation tube 161 .
  • the main control board 101 integrates the power supply circuit of the image intensifier 18.
  • a scheme of power supply through a gold-plated copper power supply spring 102 is also prepared.
  • the power supply elastic piece 102 is detachably mounted on the main control board 101 through conductive screws.
  • the power supply elastic piece 102 can extend into the interior of the installation barrel 161 from the hollow 1612 of the installation barrel 161 and come into contact with the contacts on the image intensifier 18, which can enhance the image.
  • the contact point of the device 18 is put into the installation barrel 161 and directly contacts the power supply spring piece 102 to realize power supply, which provides a quick installation solution for users to assemble the image intensifier by themselves.
  • the above-mentioned low-light night vision device 100 realizes functions such as binocular dual-channel, dual-light fusion night vision imaging, horizontal flip-up and gull-wing flip. On the basis of this, the overall weight can be reduced to 550g, which is significantly lighter than similar products.
  • the low-light night vision device 100 is a binocular dual-channel night vision device. In other embodiments, the low-light night vision device 100 may also have only the right eyepiece set 10 as a monocular set. night vision device, which is not limited here.
  • the right eyepiece set 10 is a low-light and infrared dual-light night vision goggles. In other embodiments, the right eyepiece set 10 can also be a single-light night vision goggle with only low-light imaging. .
  • the right eyepiece group 10 is a low-light night vision goggle, there is no need for the infrared lens hole 1112 on the front cover 111 , and the infrared lens group 13 , the display assembly 17 and the image combiner 163 on the image intensifier bracket 16 can be omitted.
  • this application provides a low-light night vision device that adopts an image intensifier that can be adapted to a variety of low-light image intensifiers, including domestic second-generation half-image intensifiers and domestic and foreign third-generation image intensifiers.
  • the bracket combined with the adjustment structure of the front cover, can better meet the needs of users in different regions.
  • the low-light night vision device of the present application can be equipped with different types of low-light image intensifiers in the same night vision device, and complete low-light and infrared light dual-light fusion night vision imaging.
  • the assembly and adjustment structure has the characteristics of small size, simple structure and stability.
  • High performance, good disassembly and assembly repeatability, etc. allow users of low-light night vision devices to disassemble and replace the low-light image intensifier by themselves without special training, and reset the optical system to ensure the quality of optical imaging.
  • the low-light night vision device of this application helps users achieve the vision of realizing a configuration solution that suits them on the same night vision device.

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  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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Abstract

本申请提供一种微光夜视仪，包括第一单目镜组，第一单目镜组包括：外壳，包括前盖板及镜筒，前盖板安装在镜筒的前端开口处；微光物镜组，安装在前盖板上；像增强器支架，沿微光光轴设置在微光物镜组的后端，包括安装筒、调节螺环及弹性件，安装筒内用于安装像增强器：前端抵接于所述前盖板，后端通过所述弹性件抵接于所述安装筒的后端；目镜组，沿微光光轴设置于后端；其中，调节螺环分别与前盖板、安装筒通过反向螺纹连接，以使当旋动调节螺环时安装筒、前盖板沿微光光轴方向相向或相背移动。本申请提供的微光夜视仪采用像增强器支架将像增强器可拆卸地与前盖板连接，通过像增强器支架可安装、更换、调节像增强器，能够适配不同的像增强器。

Description

微光夜视仪 技术领域
本申请涉及夜视仪技术领域，尤其是涉及一种微光夜视仪。
背景技术
微光夜视系统以像增强器为核心部件，将目标场景反射的微弱月光、星光、大气辉光等进行放大，从而获得人眼可观察到的明亮场景图像。微光像增强器是一种由增强器管与高压电源经灌封工艺组成的光电器件，成像原理为光电阴极将光学图像转换为电子图像，电子光学成像系统(电极系统)将电子图像传递到荧光屏，在传递过程中增强电子能量并完成电子图像几何尺寸的缩放，荧光屏完成电光转换，即将电子图像转换为可见光图像。优势在于其光电成像面为连续靶面，分辨率高，成像清晰，视觉能力等接近人眼的视觉效果，按照发展阶段可以分为：一代、二代、三代和二代半。
由于微光夜视技术在不同区域发展程度不同，同一款微光像增强器的价格在不同区域也有着极大的差别，技术发达地区的用户就有着将夜视仪壳体和微光像增强器分别购买的需求，那么针对固定型号像增强器开发的头戴夜视仪产品则无法满足客户需求。此外，在夜视仪实际使用过程中，由于微光像增强器容易受到强光照射而损坏，夜视仪用户的一个重要需求就是利用本地容易获得的像增强器资源进行产品维护。
技术问题
为解决现有存在的技术问题，本申请提供一种微光夜视仪，能够适配不同的像增强器，方便用户组装和更换。
技术解决方案
为达到上述目的，本申请实施例的技术方案是这样实现的：
本申请实施例提供一种微光夜视仪，包括第一单目镜组，所述第一单目镜组包括：
外壳，包括前盖板及镜筒，所述前盖板安装在所述镜筒的前端开口处；
微光物镜组，安装在所述前盖板上且定义一微光光轴；
像增强器支架，沿所述微光光轴设置在所述微光物镜组的后端，可拆卸地与所述前盖板连接，包括安装筒、调节螺环及弹性件，所述安装筒内用于通过以下方式安装一像增强器：像增强器的前端抵接于所述前盖板，像增强器的后端通过所述弹性件抵接于所述安装筒的后端；
目镜组，沿所述微光光轴设置于后端；
其中，所述调节螺环沿所述微光光轴方向的两端分别与所述前盖板、所述安装筒通过反向螺纹连接，以使当旋动所述调节螺环时所述安装筒、所述前盖板沿所述微光光轴方向相向或相背移动。
在其中一实施例中，所述前盖板的后端形成有螺纹接口，所述安装筒的前端设有筒口螺纹，所述筒口螺纹与所述螺纹接口的外螺纹螺旋方向相反；所述调节螺环朝向所述安装筒一端的内壁上设有与所述筒口螺纹螺纹连接的第一内螺纹，所述调节螺环朝向所述前盖板的一端的内壁上设有与所述螺纹接口螺纹连接的第二内螺纹，所述第一内螺纹、所述第二内螺纹的螺旋方向相反。。
在其中一实施例中，所述调节螺环呈较所述像增强器的外壁大的环形结构，所述调节螺环表面设有斜纹滚花，所述调节螺环的筒壁上绕所述微光光轴开设多个用于观察安装位置的小孔。
在其中一实施例中，所述前盖板开设有安装所述微光物镜组的微光镜孔，所述微光镜孔的后端绕所述微光镜孔的轴线形成所述螺纹接口，所述螺纹接口绕所述微光镜孔沿微光光轴向后端延伸而出，所述像增强器的前端抵接于所述螺纹接口的端面。
在其中一实施例中，所述螺纹接口的侧壁上设有开口朝向后端的定位缺口，所述安装筒的前端凸伸出凸耳，所述凸耳沿微光光轴方向卡入所述定位缺口中，以约束所述安装筒绕微光光轴的转动自由度。
在其中一实施例中，所述安装筒呈圆筒形且开设有镂空。
在其中一实施例中，所述安装筒的外壁上设有用于安装主控板的安装柱。
在其中一实施例中，所述主控板集成为所述像增强器供电的供电电路，所述主控板上通过导电螺钉可拆卸地装有供电弹片，所述供电弹片从所述镂空处伸入所述安装筒内部与所述像增强器的触点接触。
在其中一实施例中，所述第一单目镜组还包括红外镜组及合像器，所述微光夜视仪还包括显示组件，所述红外镜组安装于所述前盖板且定义一与微光光轴平行的红外光轴，所述合像器沿微光光轴设置在所述像增强器与所述目镜组 之间，所述显示组件设置在所述合像器的一侧且与所述红外镜组连接以显示感应红外光的热像，所述合像器固定连接于所述安装筒后端以与所述安装筒形成一体式支架。
在其中一实施例中，所述合像器包括光学镜片及金属框架，所述金属框架包覆在所述光学镜片外；所述显示组件直接固定于所述合像器形成一体，或者，所述金属框架上设有固定所述显示组件的显示屏支架，所述显示组件通过调整垫片安装到所述显示屏支架上。
在其中一实施例中，所述前盖板呈平板状且开设有用于安装所述红外镜组的红外镜孔，所述红外镜组包括沿红外光轴设置的红外物镜、红外物镜法兰、法兰密封圈及红外探测器，所述红外物镜固定在所述红外物镜法兰中，所述红外物镜法兰通过所述法兰密封圈从前端安装到所述前盖板上的红外镜孔中，所述红外探测器从后端安装到所述红外镜孔处。
在其中一实施例中，所述前盖板通过前端盖密封圈安装在所述镜筒的前端开口处，所述目镜组通过目镜端密封泡棉垫安装在所述镜筒的后端。
在其中一实施例中，还包括第二单目镜组，所述第一单目镜组和所述第二单目镜组通过连接桥架组连接。
在其中一实施例中，所述第一单目镜组还包括用于与所述连接桥架组连接的桥架接口件，所述桥架接口件通过桥架接口密封圈安装在所述镜筒顶部的开口处。
有益效果
本申请实施例提供的微光夜视仪至少具有以下有益效果：本申请提供一种微光夜视仪，采用像增强器支架将像增强器可拆卸地与前盖板连接，通过像增强器支架可安装、更换、调节像增强器，能够适配不同的像增强器；像增强器支架有体积小、结构简单、稳定性高、拆装重复性好等特点，使得用户可以自行拆装更换像增强器，并将光学系统复位，保证光学成像质量。
附图说明
图1为本申请一实施例的微光夜视仪的立体结构示意图；
图2为图1中的微光夜视仪的右目镜组的立体结构示意图；
图3为图2中的右目镜组的分解结构示意图；
图4为图3中的右目镜组的安装于前盖板上的部分侧视结构示意图；
图5为图4中的安装于前盖板上的部分的分解结构示意图；
图6为图5中的安装筒及合像器的立体结构示意图；
图7为图6中的安装筒及合像器的另一角度的立体结构示意图。
图中各元件标号如下：
右目镜组10；
外壳11、微光物镜组12、红外镜组13、目镜组14、桥架接口件15、像增强器支架16、显示组件17、像增强器18、天线组件19、主控板101、供电弹片102；
前盖板111、镜筒112、前端盖密封圈113、目镜端密封泡棉垫114、桥架接口密封圈115；
微光镜孔1111、红外镜孔1112、螺纹接口1113、定位缺口1114；
红外物镜131、红外物镜法兰132、法兰密封圈133、红外探测器134；
目镜镜片组141、目镜手轮142；
安装筒161、调节螺环162、合像器163、弹性件164；
筒口螺纹1611、镂空1612、凸耳1613、安装柱1614；
第一内螺纹1621、第二内螺纹1622；
光学镜片1631、金属框架1632；
左目镜组20；
连接桥架组30；
微光夜视仪100。
本发明的实施方式
以下结合说明书附图及具体实施例对本申请技术方案做进一步的详细阐述。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请的实现方式。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
在本申请的描述中，需要理解的是，术语“中心”、“上”、“下”、“前”、“后”、 “左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
不同规格的微光像增强器的结构尺寸差异主要体现在器件长度以及荧光屏和阴极面的位置。现有的夜视仪一般采用固定像增强器的位置后，通过目镜和物镜调焦补偿来进行光学调试，具体为：通过调节目镜与荧光屏的相对位置补偿视差(比如人眼若是近视也可以通过调节目镜进行清晰观测)；通过调节物镜与阴极面的相对位置补偿像差(比如不同温度下光学镜片状态不同导致的成像面位置变化，使图像变的模糊了，可以通过调节物镜校正)。本申请提供一种微光夜视仪，可以适配多种微光像增强器，并保证光学系统稳定性。
请参阅图1，其为本申请实施例提供的微光夜视仪100的结构示意图。图示的微光夜视仪100包括右目镜组10(即第一单目镜组)、左目镜组20(即第二单目镜组)及连接桥架组30，其中，右目镜组10与左目镜组20之间通过连接桥架组30连接以形成双目双通道夜视成像仪。
请参阅图2，微光与红外双光融合成像的右目镜组10的结构如图所示，集成了实现微光夜视的微光物镜组12、实现热成像的红外镜组13，以及实现欧翼翻转功能的桥架接口件15，桥架接口件15与连接桥架组30连接，从而将右目镜组10与左目镜组20连接成一体。由此，微光夜视仪100为双目双通道、双光融合夜视成像仪，且具有平转上翻和鸥翼翻转等功能。
请结合图2至图5，具体地，右目镜组10包括外壳11、微光物镜组12、红外镜组13、目镜组14、桥架接口件15、主控板101、像增强器支架16、显示组件17、像增强器18及天线组件19，其中，微光物镜组12、红外镜组13、目镜组14及桥架接口件15安装在外壳11上，主控板101、像增强器支架16、显示组件17、像增强器18及天线组件19安装在外壳11内部。
需指出的是，微光夜视仪100在作为产品出售时，右目镜组10的内部可不带像增强器18，消费者在购买产品后可根据个人喜好自行购买和安装像增强器后使用。
外壳11包括前盖板111及镜筒112，前盖板111通过前端盖密封圈113安装在镜筒112的前端开口处，目镜组14通过目镜端密封泡棉垫114安装在镜筒112的后端，桥架接口件15通过桥架接口密封圈115安装在镜筒112顶部的开口处，从而实现了外壳11内部的结构密封，保证右目镜组10的整体结构的密封性。
微光物镜组12、红外镜组13安装在前盖板111上，像增强器支架16可调节地与前盖板111连接，目镜组14、显示组件17、像增强器18及主控板101均安装于像增强器支架16，天线组件19安装在镜筒112内。
请继续结合图4和图5，前盖板111呈封闭镜筒112前端开口的平板状，其上开设有微光镜孔1111和红外镜孔1112，分别用于安装微光物镜组12、红外镜组13，微光物镜组12、红外镜组13以微光光轴与红外光轴平行的方式并排安装于前盖板111上。由于微光物镜组12和红外镜组13处于前盖板111的同一平面上，使得光学系统的装调十分简单。
微光镜孔1111的后端绕微光镜孔1111的轴线(微光光轴)形成有螺纹接口1113，用于像增强器支架16的安装和调节。螺纹接口1113的侧壁上还开设有开口朝向后端的定位缺口1114，图示实施例中，两个定位缺口1114在螺纹接口1113的直径方向布置。在前盖板111上直接设计出与像增强器支架16连接的螺纹接口1113，采用可减少转接件且更加稳定的一体式设计，螺纹接口1113底部的厚度也增强了前盖板111的整体结构强度。同时，可在前盖板111表面增加许多筋条结构，以达到不影响整体强度的情况下减小厚度、降低重量的目的。
红外镜组13包括红外物镜131、红外物镜法兰132、法兰密封圈133及红外探测器134，红外物镜131固定在红外物镜法兰132中，红外物镜法兰132通过法兰密封圈133从前端安装到前盖板111上的红外镜孔1112中，红外探测器134沿红外光轴安装到红外镜孔1112的后端，用于感测红外物镜131聚焦的红外光。现有的红外物镜和红外探测器一般分别安装在盖板或壳体的两侧，通过盖板或壳体串联起整个红外镜组，通过调节红外物镜和红外探测器之间的相对位置进行红外成像调节。图示实施例中，红外物镜131不直接安装在前盖板111上，而是通过红外物镜法兰132安装在前盖板111上，通过移动红外物镜 法兰132(带着红外物镜131)进行红外成像位置调节，比现有技术中直接移动红外探测器而言更加安全，可以保护相对脆弱的红外探测器。
目镜组14包括目镜镜片组141及目镜手轮142，目镜镜片组141沿微光光轴安装于像增强器支架16并凸伸出镜筒112的后端，目镜手轮142从后端安装到目镜镜片组141上。现有的目镜一般直接安装在壳体上，但薄壳类机构易受力容易变形，图示实施例中，此机构为了提高合像光学系统的稳定性，直接将目镜镜片组141与像增强器支架16(上的合像器163)组装在一起，与镜筒112之间用目镜端密封泡棉垫114做密封和缓冲，减少镜筒112发生变形对光学机构的影响。此外，目镜镜片组141抛弃了常规的端面安装方式，通过侧面锁螺钉的方式安装到像增强器支架16上，可达到减小镜组直径的目的。
微光物镜组12及像增强器18为微光夜视仪100的微光夜视系统主要组成部分；红外镜组13，即红外物镜131和红外探测器134，为热像系统主要组成部分；像增强器支架16(上的合像器163)、显示组件17及目镜镜片组141为合像显示系统主要组成部分。微光夜视系统、热像系统及合像显示系统三个光学系统均集安装到前盖板111上，形成图4中所示的模块，使整体结构十分紧凑。
像增强器支架16沿微光光轴设置在微光物镜组12的后端，且与前盖板111可拆卸地安装。像增强器支架16包括安装筒161、调节螺环162、合像器163及弹性件164。其中，安装筒161为用于容置像增强器18的主体部分，调节螺环162一端螺合在安装筒161的前端且另一端与前盖板111后端的螺纹接口1113螺合连接。弹性件164设置在安装筒161的底部，置于像增强器18与合像器163之间，以保证像增强器18的安装稳定并配合调节螺环162进行微光光轴方向的位置调节。安装筒161的后端为合像器163，前端为供像增强器18放入的开口且设有筒口螺纹1611，结合图6，安装筒161的前端向前凸伸出凸耳1613，安装筒161的外壁上设有安装柱1614。将合像器163和装像增强器18的安装筒161合并设计为像增强器支架16，这种一体式设计也使支撑结构更加稳固。
请结合图6和图7，安装筒161采用圆筒型的骨架结构，将像增强器18牢固的保护在中间。骨架结构采用超轻的镁合金材料，并且通过安装筒161开设的镂空1612进一步减重。像增强器18从安装筒161前端的开口装入，前端的凸耳1613穿过调节螺环162卡入螺纹接口1113上开设的定位缺口1114中，从而约束安装筒161绕微光光轴的转动自由度。
调节螺环162朝向安装筒161一端的内壁上设第一内螺纹1621，以与安装筒161的筒口螺纹1611螺纹连接。调节螺环162朝向前盖板111的另一端的内壁上设有第二内螺纹1622，通过第二内螺纹1622与前盖板111上的螺纹接口1113螺纹连接，以将安装筒1611与前盖板111沿微光光轴方向进行连接。第一内螺纹1621、第二内螺纹1622的内螺纹螺旋方向相反，对应地，筒口螺纹1611与螺纹接口1113的外螺纹螺旋方向相反，从而第一内螺纹1621和筒口螺纹1611与第二内螺纹1622和螺纹接口1113形成方向相反的丝扣，通过旋动调节螺环162，安装筒161及合像器163相对前盖板111在微光光轴上的位置发生变化。像增强器18的前端顶抵在螺纹接口113的端面，后端通过弹性件164的一端抵接在在安装筒161的筒底。通过旋动调节螺环162，安装筒161与前盖板111相向或相背移动，与安装筒161固定连接的合像器163的位置也随之发生变化，可调节合像器163与像增强器18之间的相对距离，也可适配不同型号像增强器18。
调节螺环162为适配不同型号像增强器的关键，通过调节螺环162、弹性件164、安装筒161和前盖板111配合，可以调节合像器163与像增强器18在微光光轴方向的相对位置。调节螺环162采用较像增强器18的外壁均匀增大一圈的环形结构，是使右目镜组10整体直径尺寸最小的结构形式。调节螺环162也是将整个右目微光物镜组连接起来的关键。
调节螺环162可采用硬度较高的铝合金材料，表面可增加斜纹滚花，增加摩擦力方便手拧。调节螺环162的筒壁上还可绕微光光轴开设四个小孔，可以观察安装位置。
合像器163是由金属框架1632和光学镜片1631构成的棱镜式合像装置，位于目镜组14与像增强器18之间。合像器163采用金属全包棱镜的设计，可保护内部光学镜片1631。现有的合像器一般直接安装在壳体内部，有着易受壳体变形影响的情况，而且在壳体内筒较深时安装与调试并不方便。相较于现有设计，将合像器163与安装筒161连接为一体，可减少合像器163与像增强器18之间的转接件，使整体机构更加稳定，也使得合像器163调试可以在无外壳遮挡下进行，降低装调难度。
合像器163的金属框架1632上还可集成固定显示组件17的显示屏支架，方便显示组件17直接安装到合像器163的金属框架1632上。
弹性件164设置在安装筒161内并顶抵像增强器18远离调节螺环162的一端，从而使像增强器18能够被定位，且能够兼容不同的像增强器18在微光光 轴方向上尺寸的差异。图示实施例中，弹性件164为弹簧片，且在微光光轴上的部分掏空，不影响沿微光光轴的光线传播。在其它实施例中，弹性件164也可采用压缩弹簧或具有中孔的弹性橡胶垫等，在此不一一列举。
显示组件17与红外探测器134信号连接，以接收红外探测器134感应红外光的热像并进行显示。显示组件17包括OLED屏幕与屏幕支架，屏幕支架将OLED屏全包起来进行保护，并安装在安装筒161上与合像器163的位置相对应。当微光夜视仪100所采用的像增强器18为固定型号时，可以将显示组件17与合像器163设计为一体。当然，为了适配更多型号的像增强器，图示实施例中，显示组件17与安装筒161上固定的合像器163分开，可以通过调整垫片调整显示组件17与合像器163的相对位置进行调整完成红外与微光合像。
主控板101通过紧固件固定在安装筒161上的安装柱1614上，从而将主控板101固定到安装筒161的筒壁上。主控板101集成了像增强器18的供电电路，对于像增强器18的供电方案，除了连接线缆的供电方式外，还预备了通过铜镀金的供电弹片102进行供电的方案。供电弹片102通过导电螺钉可拆卸地装在主控板101上，供电弹片102可从安装筒161的镂空1612处伸入安装筒161内部与像增强器18上的触点接触，可以使像增强器18装进安装筒161中触点直接与供电弹片102接触即可实现供电，为用户自行组装像增强器提供了快装方案。
上述微光夜视仪100，由于像增强器18的装调结构的尺寸较小，使得此产品在实现了双目双通道、双光融合夜视成像、平转上翻和鸥翼翻转等功能的基础上，整体重量可降低至550g，比同类型的产品重量大幅减低。
需指出的是，图示实施例中微光夜视仪100为双目双通道夜视仪，在其它实施例中，微光夜视仪100也可为仅具有右目镜组10作为单目镜组的夜视仪，此处对此不做限定。
另一方面，图示实施例中，右目镜组10为微光与红外双光融合夜视镜，在其它实施例中，右目镜组10也可为仅具有微光成像的单光夜视镜。当右目镜组10为微光夜视镜时，前盖板111上无需红外镜孔1112，红外镜组13、显示组件17以及像增强器支架16上的合像器163均可省去。
综上所述，本申请提供一种微光夜视仪，采用可以适配包括国产二代半像增强器和国内外的三代像增强器在内的多种微光像增强器的像增强器支架，配合前盖板的装调结构，可以更好地满足不同地区用户的需求。本申请的微光夜 视仪可实现同一夜视仪装配不同型号的微光像增强器，并完成微光、红外光双光融合夜视成像，装调结构具有体积小、结构简单、稳定性高、拆装重复性好等特点，使得微光夜视仪用户不经过特殊培训，也可以自行拆装更换微光像增强器，并将光学系统复位，保证光学成像质量。本申请的微光夜视仪帮助用户达成在同一款夜视仪上就能够实现适合自己的配置方案的愿景。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围之内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种微光夜视仪，其特征在于，包括第一单目镜组，所述第一单目镜组包括：
    外壳(11)，包括前盖板(111)及镜筒(112)，所述前盖板(111)安装在所述镜筒(112)的前端开口处；
    微光物镜组(12)，安装在所述前盖板(111)上且定义一微光光轴；
    像增强器支架(16)，沿所述微光光轴设置在所述微光物镜组(12)的后端，可拆卸地与所述前盖板(111)连接，包括安装筒(161)、调节螺环(162)及弹性件(164)，所述安装筒(161)内用于通过以下方式安装一像增强器(18)：像增强器(18)的前端抵接于所述前盖板(111)，像增强器(18)的后端通过所述弹性件(164)抵接于所述安装筒(161)的后端；
    目镜组(14)，沿所述微光光轴设置于后端；
    其中，所述调节螺环(162)沿所述微光光轴方向的两端分别与所述前盖板(111)、所述安装筒(161)通过反向螺纹连接，以使当旋动所述调节螺环(162)时所述安装筒(161)、所述前盖板(111)沿所述微光光轴方向相向或相背移动。
  2. 根据权利要求1所述的微光夜视仪，其特征在于，所述前盖板(111)的后端形成有螺纹接口(1113)，所述安装筒(161)的前端设有筒口螺纹(1611)，所述筒口螺纹(1611)与所述螺纹接口(1113)的外螺纹螺旋方向相反；所述调节螺环(162)朝向所述安装筒(161)一端的内壁上设有与所述筒口螺纹(1611)螺纹连接的第一内螺纹(1621)，所述调节螺环(162)朝向所述前盖板(111)的一端的内壁上设有与所述螺纹接口(1113)螺纹连接的第二内螺纹(1622)，所述第一内螺纹(1621)、所述第二内螺纹(1622)的螺旋方向相反。
  3. 根据权利要求2所述的微光夜视仪，其特征在于，所述调节螺环(162)呈较所述像增强器(18)的外壁大的环形结构，所述调节螺环(162)表面设有斜纹滚花，所述调节螺环(162)的筒壁上绕所述微光光轴开设多个用于观察安装位置的小孔。
  4. 根据权利要求2所述的微光夜视仪，其特征在于，所述前盖板(111)开设有安装所述微光物镜组(12)的微光镜孔(1111)，所述微光镜孔(1111)的后端绕所述微光镜孔(1111)的轴线形成所述螺纹接口(1113)，所述螺纹接口(1113)绕所述微光镜孔(1111)沿微光光轴向后端延伸而出，所述像增强 器(18)的前端抵接于所述螺纹接口(1113)的端面。
  5. 根据权利要求2所述的微光夜视仪，其特征在于，所述螺纹接口(1113)的侧壁上设有开口朝向后端的定位缺口(1114)，所述安装筒(161)的前端凸伸出凸耳(1613)，所述凸耳(1613)沿微光光轴方向卡入所述定位缺口(1114)中，以约束所述安装筒(161)绕微光光轴的转动自由度。
  6. 根据权利要求1所述的微光夜视仪，其特征在于，所述安装筒(161)呈圆筒形且开设有镂空(1612)。
  7. 根据权利要求6所述的微光夜视仪，其特征在于，所述安装筒(161)的外壁上设有用于安装主控板(101)的安装柱(1614)。
  8. 根据权利要求7所述的微光夜视仪，其特征在于，所述主控板(101)集成为所述像增强器(18)供电的供电电路，所述主控板(101)上通过导电螺钉可拆卸地装有供电弹片(102)，所述供电弹片(102)从所述镂空(1612)处伸入所述安装筒(161)内部与所述像增强器(18)的触点接触。
  9. 根据权利要求1至8中任一项所述的微光夜视仪，其特征在于，所述第一单目镜组还包括红外镜组(13)及合像器(163)，所述微光夜视仪还包括显示组件(17)，所述红外镜组(13)安装于所述前盖板(111)且定义一与微光光轴平行的红外光轴，所述合像器(163)沿微光光轴设置在所述像增强器(18)与所述目镜组(14)之间，所述显示组件(17)设置在所述合像器(163)的一侧且与所述红外镜组(13)连接以显示感应红外光的热像，所述合像器(163)固定连接于所述安装筒(161)后端以与所述安装筒(161)形成一体式支架。
  10. 根据权利要求9所述的微光夜视仪，其特征在于，所述合像器(163)包括光学镜片(1631)及金属框架(1632)，所述金属框架(1632)包覆在所述光学镜片(1631)外；所述显示组件(17)直接固定于所述合像器(163)形成一体，或者，所述金属框架(1632)上设有固定所述显示组件(17)的显示屏支架，所述显示组件(17)通过调整垫片安装到所述显示屏支架上。
  11. 根据权利要求9所述的微光夜视仪，其特征在于，所述前盖板(111)呈平板状且开设有用于安装所述红外镜组(13)的红外镜孔(1112)，所述红外镜组(13)包括沿红外光轴设置的红外物镜(131)、红外物镜法兰(132)、法兰密封圈(133)及红外探测器(134)，所述红外物镜(131)固定在所述红外物镜法兰(132)中，所述红外物镜法兰(132)通过所述法兰密封圈(133)从前端安装到所述前盖板(111)上的红外镜孔(1112)中，所述红外探测器(134) 从后端安装到所述红外镜孔(1112)处。
  12. 根据权利要求1所述的微光夜视仪，其特征在于，所述前盖板(111)通过前端盖密封圈(113)安装在所述镜筒(112)的前端开口处，所述目镜组(14)通过目镜端密封泡棉垫(114)安装在所述镜筒(112)的后端。
  13. 根据权利要求1所述的微光夜视仪，其特征在于，还包括第二单目镜组，所述第一单目镜组和所述第二单目镜组通过连接桥架组(30)连接。
  14. 根据权利要求13所述的微光夜视仪，其特征在于，所述第一单目镜组还包括用于与所述连接桥架组(30)连接的桥架接口件(15)，所述桥架接口件(15)通过桥架接口密封圈(115)安装在所述镜筒(112)顶部的开口处。
PCT/CN2022/114076 2022-08-23 2022-08-23 微光夜视仪 WO2024040417A1 (zh)

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