A night vision goggle of micro-light and infrared fusion

Abstract

The utility model discloses a kind of night vision glasses of micro-light and infrared fusion, by micro-light night vision glasses, infrared camera and glasses three parts are formed, micro-light night vision glasses and glasses can be independently used respectively realize micro-light imaging observation and image / information superposition, also can be combined use. Infrared camera adopts external hanging type design, combination use can be realized. The device mainly solves the current micro-light and infrared fusion night vision glasses light machine complex, weight increases, gravity moves forward, wearing comfort declines and cannot adapt to combination, intelligentization and other defects. By infrared camera combination installation on night vision glasses, image and information are shown in head-mounted glasses, observe night vision image through glasses, meet night vision combination, intelligentization application demand.

Description

Technical Field

[0001] This utility model relates to a night vision goggle, and more particularly to a night vision goggle that can be used in nighttime environments to simultaneously observe infrared images / information and low-light night vision images. Background Technology

[0002] Night vision goggles typically consist of an objective lens, a low-light image intensifier, and an eyepiece. In the absence of artificial lighting at night, the objective lens projects the faint natural light illuminating the target onto the cathode surface of the image intensifier. Through photoelectron conversion at the cathode surface, the weak optical image is converted into an electronic image. This electronic image is then amplified a thousandfold by the strong electric field of the image intensifier's electro-optical system, resulting in an enhanced optical image displayed on a fluorescent screen. This process achieves the conversion and brightness enhancement between optical and electronic images, and the image is magnified by the eyepiece for human observation. In dark environments, night vision goggles provide a direct, low-light image for visual perception, satisfying basic nighttime environmental awareness and demonstrating good performance in practice. However, night vision images are significantly affected by ambient illumination and the contrast between the target and background. In low-contrast and complex environments, their recognition performance decreases significantly. Furthermore, night vision goggles provide only optical images and lack digital functionality. The fusion of low-light and infrared images not only significantly improves the probability and distance of target recognition in complex environments but also enables the overlay of digital information.

[0003] Typical low-light and infrared fusion night vision devices use prism projection OLED optical systems, such as... Figure 1 As shown, its structure typically consists of an objective lens group, an image intensifier, an OLED display, and a prism eyepiece. Its working principle is as follows: after the image is formed by the objective lens, it undergoes low-light enhancement by the image intensifier, and then is magnified by the prism eyepiece for direct viewing by the human eye. An OLED display is then placed on top of the prism of the prism eyepiece, and the digitized image on the display is projected and superimposed onto the image through the prism.

[0004] CN118348684A discloses an AR display device and method compatible with low-light night vision goggles, which can enhance the information of the image formed by the low-light night vision goggles, thereby improving the visual perception capability under the low-light night vision goggles. However, this device needs to determine the relevant parameters of the enhancement information required for the image formed by the low-light night vision goggles through image analysis based on the current scene information, and then use AR glasses to further enhance the image of the low-light night vision goggles.

[0005] Conventional low-light and infrared fusion night vision goggles have complex optical engine designs, increasing overall weight and shifting the center of gravity forward, which reduces the comfort of wearing the goggles. They also lack intelligence or have limited functionality, making them unsuitable for potential combined and intelligent applications. Summary of the Invention

[0006] The technical problem to be solved by this invention is: based on the shortcomings of conventional low-light and infrared fusion night vision goggles, such as complex optomechanics, increased weight, forward shift of center of gravity, decreased wearing comfort, and inability to adapt to modular and intelligent applications, this invention provides a low-light and infrared fusion night vision goggles that integrate an infrared camera and display images and information on head-mounted glasses, allowing night vision images to be observed through the glasses, thus meeting the needs of modular and intelligent night vision applications.

[0007] Specifically, the technical solution of this utility model is as follows:

[0008] A night vision device that integrates low-light and infrared light is composed of three parts: a low-light night vision device 1, an infrared camera 2, and glasses 3. The low-light night vision device 1 and glasses 3 can be used independently to achieve low-light imaging observation and image / information overlay, respectively, or they can be used in combination.

[0009] The low-light night vision goggles 1 are a dual-tube binocular structure composed of two monocular imaging components. Each monocular imaging component mainly consists of an objective lens group 11, an image intensifier 12, an eyepiece group 13, a base group 14, and a helmet support group 15. Wherein:

[0010] Objective lens group 11 adopts a 50° wide field of view design to improve the image plane illumination on the input screen of the image intensifier while ensuring that the image quality meets the usage requirements. The relative aperture of objective lens group 11 is D / f=1:1.2, which can collect more radiation energy in the object-side field of view, providing more energy for the image brightness gain of image intensifier 12, while ensuring a balance between image quality and weight;

[0011] Image intensifier 12 is low-power and features automatic gating and brightness gain adjustment to ensure that low-light images remain clearly discernible even under strong light source interference.

[0012] The eyepiece group 13 magnifies the target image on the fluorescent screen of the image intensifier 12 for human observation. It features a long exit pupil distance and a large exit pupil diameter, and employs aspherical aberration correction. The use of a hybrid glass and resin material further reduces product weight. A pupil deflection design ensures that slight offset between the product and the human eye during use will not cause significant image blurring or distortion.

[0013] The base assembly 15 consists of a battery compartment 151, a button 152, a dovetail mount 153, and an infrared mounting base 154. The battery compartment 151 can hold one 1.5V AA battery to power the night vision goggles. The button 152 turns the night vision goggles on and off, and the brightness can be adjusted by rotating the button. The infrared mounting base 154, via the dovetail mount 153, can be fixed to an infrared camera. The helmet bracket 16 connects to the night vision goggles and the helmet mounting base, and through a specific adjustment mechanism, allows for up / down, tilt, and forward / backward adjustment, as well as a flip mechanism that allows the entire low-light night vision goggles 1 to be flipped upwards for direct naked-eye observation.

[0014] The infrared camera 2 consists of an infrared objective lens 21, an uncooled infrared core 22, a mounting and positioning mechanism 23, and an external cable 24. The mounting and positioning mechanism 23 securely fixes the camera to the objective lens assembly 11 of the low-light night vision goggles, ensuring that the infrared image captured by the infrared camera 2 is relatively fixed to the image formed by the low-light night vision goggles 1. The external cable 24 directly supplies power to the infrared camera 2 and transmits the infrared image captured by the camera 2 to the goggles 3 for superimposed display, enabling the superimposed and fused display of infrared and low-light images.

[0015] The glasses 3 consist of near-eye projection lenses 31, frames 32, and an image display processing unit 33. The glasses are worn in front of the eyes via the frames. An infrared camera transmits infrared images to the information overlay glasses via a cable, and the near-eye projection lenses display the infrared images and other digital information to the user's eyes. The image display processing unit 33 has Wi-Fi functionality, allowing it to wirelessly transmit and overlay other digital information onto the near-eye display.

[0016] This invention utilizes different combinations of three components—low-light night vision goggles 1, infrared camera 2, and glasses 3—to achieve switching between low-light night vision, infrared night vision, image fusion, and information overlay modes.

[0017] The beneficial effects of this utility model are:

[0018] This utility model features modularity and ease of information integration, enabling low-light observation, low-light / external image fusion, and digital information display. It facilitates intelligent expansion and can meet the combined use of multiple modes such as low-light night vision goggles, infrared cameras, image fusion, and information overlay. Attached Figure Description

[0019] Figure 1 Schematic diagram of a prism projection OLED optical system.

[0020] Figure 2 , one A diagram of a night vision device that combines low-light and infrared technologies.

[0021] Figure 3Diagram of the structure of a low-light night vision goggle.

[0022] Figure 4 Diagram of the base structure.

[0023] Figure 5 1. Infrared camera structure diagram.

[0024] Figure 6 Diagram of the structure of eyeglasses.

[0025] Figure 7 , one A schematic diagram of a head-mounted night vision goggle device that combines low-light and infrared technologies.

[0026] Figure 8 , one A schematic diagram of a head-mounted night vision goggle device that combines low-light and infrared technologies.

[0027] In the image: 1-Low-light night vision goggles, 2-Infrared camera, 3-Glasses;

[0028] 11-Objective lens group, 12-Image intensifier, 13-Eyepiece group, 14-Lens body, 15-Base group, 16-Helmet bracket group;

[0029] 151-Battery compartment, 152-Button, 153-Dovetail mount, 154-Infrared mounting bracket;

[0030] 21-Infrared objective lens, 22-Uncooled infrared sensor, 23-Mounting and positioning mechanism, 24-External cable;

[0031] 31-Near-eye projection lens, 32-Frame, 33-Image display processing group. Detailed Implementation

[0032] like Figure 2 As shown, a night vision device that fuses low-light and infrared light includes three parts: a low-light night vision device 1, an infrared camera 2, and glasses 3. The low-light night vision device and glasses can be used independently to achieve low-light imaging observation and image / information overlay, respectively, or they can be used in combination.

[0033] like Figure 3 As shown, the low-light night vision goggle 1 is a dual-tube binocular structure composed of two monocular imaging components, including an objective lens group 11, an image intensifier 12, an eyepiece group 13, a goggle body 14, a base group 15, and a helmet support group 16. The image intensifier 12 is connected to the objective lens group 11 via an adapter plate and then screwed to the front of the goggle body 14. The eyepiece group 13 is screwed to the rear of the goggle body 14. The base group 15 is fixed to the top of the goggle body 14 with screws, and the helmet support group 16 is connected to the top of the base group 15 via a dovetail structure.

[0034] The objective lens group 11 features a 50° wide field of view design, which improves the image illumination on the input screen of the image intensifier while ensuring that the image quality meets the usage requirements. The relative aperture of the objective lens group 11 is D / f=1:1.2, which ensures that more radiation energy is collected in the object-side field of view, thereby providing greater energy for the image brightness gain of the image intensifier 12, while ensuring a balance between image quality and weight.

[0035] The image intensifier 12 features low power consumption, automatic gating, and brightness gain adjustment, thereby ensuring that low-light images remain clearly discernible even under strong light source interference.

[0036] The eyepiece 13 can magnify the target image on the fluorescent screen of the image intensifier 12 for human eye observation. It adopts a long exit pupil distance, a large exit pupil diameter, and an aspherical aberration correction design. It uses a hybrid design of glass and resin materials to further reduce the weight of the product. It adopts a pupil offset design to ensure that when wearing and using the product, a slight offset from the human eye will not cause obvious blurring or distortion of the image.

[0037] like Figure 4 As shown, the base assembly 15 consists of a battery compartment 151, a button 152, a dovetail mount 153, and an infrared mounting base 154. The battery compartment 151 is fixed to the bottom of the base assembly 15 with screws and powers the night vision goggles with a single 1.5V AA battery. The button 152 is located at the front of the base assembly; pressing it turns the night vision goggles on and off, while rotating it adjusts the brightness. The dovetail mount 153 is connected to the top of the base assembly with screws, allowing for quick and easy manual assembly and disassembly of the night vision goggles. The infrared mounting base 154 is secured to an infrared camera via a dovetail mechanism.

[0038] The helmet bracket 16 can be connected to the night vision goggles and the helmet mount, and can be adjusted up and down, tilt and back and forth through a specific adjustment mechanism, and the flipping mechanism can flip the entire low-light night vision goggles 1 upward to achieve direct observation with the naked eye.

[0039] like Figure 5 As shown, the infrared camera 2 adopts an external design, enabling combined use. The infrared camera 2 consists of an infrared objective lens 21, an uncooled infrared sensor 22, a mounting and positioning mechanism 23, and an external cable 24. It is mounted below the low-light night vision goggles 1 via the positioning mechanism 23, ensuring that the infrared image captured by the infrared camera 2 is relatively fixed to the image formed by the low-light night vision goggles 1. The external cable 24 can directly power the infrared camera 2 and transmit the infrared image captured by the infrared camera 2 to the goggles 3 for superimposed display, achieving the superimposed and fused display of infrared and low-light images.

[0040] like Figure 6As shown, the glasses 3 consist of a near-eye projection lens 31, a frame 32, and an image display processing unit 33. The near-eye projection lens 31 is fixed to the frame 32 with adhesive, and the image display processing unit 33 is connected to the frame 32 with screws. The glasses 3 are worn in front of the eyes through the frame. The infrared camera 2 transmits infrared images to the information overlay glasses 3 via cables, and the near-eye projection lens 31 displays the infrared images and other digital information to the user's eyes. The image display processing unit 33 has Wi-Fi functionality, allowing it to wirelessly transmit and overlay other digital information onto the near-eye display.

[0041] like Figure 7 and Figure 8 The diagram shows a wearing illustration of the device connected to a helmet. The entire device utilizes different combinations of three components—low-light night vision goggles, an infrared camera, and glasses—to achieve switching between low-light night vision, infrared night vision, image fusion, and information overlay modes.

Claims

1. A night vision goggle that fuses low-light and infrared light, characterized in that, The night vision goggles consist of a low-light night vision goggle (1), an infrared camera (2), and glasses (3); The low-light night vision goggles (1) are a dual-tube binocular structure consisting of two monocular imaging components. The monocular imaging components consist of an objective lens group (11), an image intensifier (12), an eyepiece group (13), a goggle body (14), a base group (15), and a helmet bracket group (16). The image intensifier (12) is connected to the objective lens group (11) via an adapter plate and then connected to the front of the goggle body (14) via screws. The eyepiece group (13) is connected to the rear of the goggle body (14) via screws. The base group (15) is fixed to the top of the goggle body (14) via screws. The helmet bracket group (16) is connected to the top of the base group (15) via a dovetail structure. The infrared camera (2) consists of an infrared objective lens (21), an uncooled infrared core (22), a mounting and positioning mechanism (23), and an external cable (24). The mounting and positioning mechanism (23) is fixed firmly to the objective lens group (11) of the low-light night vision goggles after being set relative to each other, so as to ensure that the infrared image collected by the infrared camera (2) is relatively fixed with the image of the low-light night vision goggles (1). The infrared camera (2) is powered directly through the external cable (24), and the infrared image collected by the infrared camera (2) is transmitted to the glasses (3) for superposition and display, so as to realize the superposition and fusion display of infrared and low-light images. The glasses (3) are worn in front of the eyes. The infrared camera (2) transmits the infrared image to the glasses (3) via a cable. The glasses (3) then display the infrared image and other digital information to the user's eyes.

2. The night vision goggles according to claim 1, characterized in that: The relative aperture of the objective lens group (11) is D / f=1:1.2, which is used to collect more radiation energy in the object field of view, provide more energy for the image brightness gain of the image intensifier (12), and at the same time ensure the balance between image quality and weight.

3. The night vision goggles according to claim 1, characterized in that: The objective lens group (11) adopts a 50° large field of view design to improve the image surface illumination on the image intensifier input screen, while ensuring that the image quality can meet the usage requirements.

4. The night vision goggles according to claim 1, characterized in that: The eyepiece group (13) is used to magnify the target image on the fluorescent screen of the image intensifier (12) for human eye observation. It adopts a long exit pupil distance and a large exit pupil diameter design, and uses aspherical aberration correction. It uses a mixed design of glass and resin materials to further reduce the weight of the product. It adopts a deflection design to ensure that the slight offset between the product and the human eye during wear and use will not cause the image to be obviously blurred or deformed.

5. The night vision goggles according to claim 1, characterized in that: The base assembly (15) consists of a battery compartment (151), a button (152), a dovetail mount (153), and an infrared mounting base (154). The battery compartment (151) is fixed to the bottom of the base assembly (15) with screws. The button (152) is located in front of the base assembly (15) and is used to turn the night vision goggles on and off and to adjust the brightness by rotating the button. The dovetail mount (153) is connected to the top of the base assembly (15) with screws and is used to enable quick assembly and disassembly of the night vision goggles by hand. The infrared mounting base (154) is fixedly connected to the infrared camera (2) through the dovetail mount (153).

6. The night vision goggles according to claim 1, characterized in that: The helmet bracket assembly (16) is used to connect with the night vision goggles and the helmet mount, and the adjustment mechanism enables up and down, pitch and forward and backward adjustment, and the flipping mechanism flips the entire low-light night vision goggles (1) upward to enable direct naked-eye observation.

7. The night vision goggles according to claim 1, characterized in that: The glasses (3) consist of a near-eye projection lens (31), a frame (32), and an image display processing unit (33). The near-eye projection lens (31) is fixed to the frame (32) with adhesive, and the image display processing unit (33) is connected to the frame (32) with screws. The glasses (3) are worn in front of the eyes by wearing the frame (32). The infrared camera (2) transmits the infrared image to the information superimposed glasses (3) through a cable, and displays the infrared image and other digital information to the user's eyes through the near-eye projection lens (31).

8. The night vision goggles according to claim 7, characterized in that: The image display processing group (33) has WIFI function and can transmit digital information wirelessly and overlay it on the near-eye display terminal.

9. The night vision goggles according to any one of claims 1-8, characterized in that: The low-light night vision goggles (1) and glasses (3) can be used in combination or independently to achieve the conversion of low-light night vision, infrared night vision, image fusion, and information overlay modes, respectively.

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