Head-mounted integrated night vision equipment with double light paths

Abstract

The utility model discloses a dual-light multipath head-mounted fusion night vision device, which comprises an environment perception detection module and an augmented reality display module, and is characterized in that the environment perception detection module comprises a first frame, an infrared light sensor module, two low-light sensor modules, two visible light camera modules and an IMU (Inertial Measurement Unit) module; the augmented reality display module comprises a second frame, shading goggles, a main control chip, a micro-display, an optical combiner and a diffraction optical waveguide, the input end of the main control chip is connected with the infrared light sensor module, the low-light sensor module, the visible light camera module and the IMU module, and the output end of the main control chip is connected with the micro-display. The micro display is connected with the optical combiner, and the optical combiner is connected with the optical waveguide sheet. On the premise that the equipment is convenient to use and two hands are liberated, the display effect of night vision detection is greatly improved by using double light and multiple paths, the visual habit of human eye observation is met, and the man-machine efficiency of the night vision device is greatly improved.

Description

Technical Field

[0001] The utility model relates to a night vision device, in particular to a head-mounted fusion night vision device with dual-light multi-path. Background Art

[0002] The existing low-light-level night vision detection technology has strong detail resolution and restoration capabilities, but the detection distance is relatively short; infrared night vision detection technology has a long detection distance and strong penetration capabilities in fog, rain and snow, but has a limited field of view. Most of the existing fusion night vision devices are monocular handheld devices, which do not fully possess the advantages of dual-light multi-channel fusion night vision. There are practical problems such as poor display effect, limited detection field of view, contradiction between viewing night vision images and viewing the surrounding environment, bulky equipment, and inconvenient use. Utility Model Content

[0003] The purpose of the utility model is to provide a head-mounted fusion night vision device with dual-light multi-path, which solves the problems of poor display effect, limited detection field of view, interference of night vision screen display with external environment observation, inconvenience in use, and difficulty in spatial positioning of fusion night vision devices in low-light environments.

[0004] The technical solution to achieve the purpose of this utility model is:

[0005] A head-mounted fusion night vision device with dual-light multi-path is based on an AR glasses frame and includes an environment perception detection module and an augmented reality display module. The environment perception detection module includes a first frame, an infrared light sensor module, two low-light sensor modules, two visible light camera modules and an IMU module. The first frame is located at the forehead of the user when in use, the infrared light sensor module is installed in the center of the first frame, the two low-light sensor modules are symmetrically installed on both sides of the infrared light sensor module, the two visible light camera modules are located on both sides of the low-light sensor module, and the IMU module is built into the inside of the first frame; the augmented reality display module includes a second frame, light-shielding goggles, a main control chip, a micro display, an optical combiner and a diffraction optical waveguide. The second frame and the first frame are connected by a micro-display, a main control chip, a micro-display, a light combiner and a diffraction optical waveguide. The main control chip is installed in the first frame, the sunshade goggles are installed on the outside of the lower edge of the second frame, and are located in front of the eyes when in use. The diffraction optical waveguide is located on the inside of the sunshade goggles, and the microdisplay and the optical combiner are installed on the inside of the second frame. The input end of the main control chip is connected to the infrared light sensor module, the low-light sensor module, the visible light camera module and the IMU module through a data line to fuse and splice the three-way images to obtain the IMU positioning information. The output end is connected to the microdisplay and the optical combiner, and the microdisplay and the optical combiner are communicated with the optical waveguide. The main control chip decodes the image and displays it on the microdisplay. The microdisplay converts the electrical signal into an optical image signal, which is diffracted into the human eye through the optical combiner and the diffraction optical waveguide to achieve a display effect of virtual and real fusion.

[0006] Preferably, the connection between the main control chip, the infrared light sensor module, the low light sensor module, the visible light camera module, the IMU module, the micro display, the optical combiner, and the optical waveguide is a data line connection.

[0007] Preferably, it also includes an LED white light source, which is installed below the visible light camera module and is used to replace a flashlight to complete the lighting work.

[0008] Preferably, the visible light camera module adopts a binocular RGB camera.

[0009] Preferably, the infrared light sensor module adopts an uncooled infrared sensor.

[0010] Preferably, the low-light sensor module adopts a CMOS sensor.

[0011] Preferably, the microdisplay is a Micro-LED microdisplay.

[0012] Preferably, the diffraction optical waveguide is a volume holographic optical waveguide.

[0013] Preferably, the main control chip is Rockchip RK3588.

[0014] Preferably, the infrared light sensor module and the two low-light sensor modules capture images in synchronous frames.

[0015] Compared with the prior art, the head-mounted fusion night vision device system with dual-light multi-path fusion night vision function obtained by the utility model has the following advantages: large detection field of view, spatial positioning and posture detection in low illumination environment, seamless connection and display of night vision images and real scenes, good display effect, easy to use, and able to free the user's hands; it conforms to the visual habits of human eye observation and greatly improves the human-machine efficiency of night vision goggles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall structural diagram of a head-mounted fusion night vision device with dual-light multi-path fusion night vision function in an embodiment.

[0017] Figure 2 It is another overall structural diagram of the head-mounted fusion night vision device with dual-light multi-path fusion night vision function in the embodiment.

[0018] Figure 3 4 is a front view of a head-mounted fusion night vision device with dual-light multi-path fusion night vision function in an embodiment.

[0019] Figure 4 It is a right view of a head-mounted fusion night vision device with dual-light multi-path fusion night vision function in an embodiment.

[0020] Figure 5 It is a rear view of a head-mounted fusion night vision device with dual-light multi-path fusion night vision function in an embodiment.

[0021] As shown in the figure: 1-infrared light sensor module, 2-first low-light sensor module, 3-second low-light sensor module, 4-first visible light camera module, 5-second visible light camera module, 6-focusing LED white light source, 7-light-shielding goggles, 8-main control chip, 9-micro display, 10-optical waveguide. DETAILED DESCRIPTION

[0022] The utility model discloses a head-mounted fusion night vision device with a dual-light multi-channel fusion night vision function, which greatly improves the detection capability and display effect of the night vision device by using a binocular low-light camera as a supplement to the binocular RGB camera and IMU module posture detection information.

[0023] Figure 1 , Figure 2The overall structure of a head-mounted fusion night vision device with a dual-light fusion night vision function includes an environment perception detection module and an augmented reality display module. The middle of the environment perception detection module is an infrared light sensor module 1, which is responsible for receiving infrared reflected light from the external environment and used for real-time imaging; two identical first low-light sensor modules 2 and second low-light sensor modules 3 are distributed on both sides of the middle, which are responsible for starlight-level night vision detection and real-time imaging, and the positions of the infrared sensor module 1 and the first low-light sensor module 2 and the second low-light sensor module 3 meet the three-eye common light path alignment; the same first visible light camera module 4 and second visible light camera module 5 are set at both ends of the first low-light sensor module 2 and the second low-light sensor module 3, and an IMU module is built-in at the rear of the environment perception detection module for SLAM head posture positioning of visual inertial fusion; a focusing LED white light source 6 is respectively set below the first visible light camera module 4 and the second visible light camera module 5 to replace the flashlight to complete the lighting work. The augmented reality display module includes a main control chip 8, a micro display 9, an optical combiner and a diffraction optical waveguide 10, and a light shielding goggles 7 are arranged on the outside. The main control chip 8 is located in the environment perception detection module, responsible for the data image fusion storage of each detector, and transmits the fused image to the display module. The image is displayed by the micro display 9 and the optical combiner and transmitted to the optical waveguide sheet 10 to be presented in front of the user, realizing virtual and real display.

[0024] The environment perception detection module is responsible for collecting images and posture information from binocular low-light cameras, infrared cameras, binocular RGB cameras, and inertial IMU modules. The infrared light sensor module 1 uses an uncooled infrared sensor, and the low-light sensor modules 2 and 3 use low-light CMOS sensors. The augmented reality display module is responsible for spatial positioning, virtual image rendering and display. The micro-display 9 uses a Micro-LED micro-display, and the optical waveguide 10 uses a volume holographic optical waveguide. The main control chip 8 is responsible for all data processing, peripheral drive and other functions. The main control chip 8 can use Rockchip RK3588.

[0025] When the user wears the fusion night vision device and moves quickly, the position of the night vision detection video will remain fixed relative to the real scene, realizing the organic fusion display of the night vision detection scene and the real scene, and achieving spatial positioning and virtual-reality fusion display in low-light environments. It not only expands the usage scenarios of the fusion night vision device, but also greatly improves the night vision display effect. At the same time, night vision detection, as a supplement to augmented reality environment perception, can expand the application scenarios of fusion night vision devices at night. The head-mounted night vision device is easy to use and can free the user's hands.

Claims

1. A head-mounted fusion night vision device with dual-light multi-path, characterized in that: The invention comprises an environment perception detection module and an augmented reality display module, wherein the environment perception detection module comprises a first frame, an infrared light sensor module, two low-light sensor modules, two visible light camera modules and an IMU module, wherein the first frame is located at the forehead of the user when in use, the infrared light sensor module is installed at the center of the first frame, the two low-light sensor modules are symmetrically installed on both sides of the infrared light sensor module, the two visible light camera modules are located on both sides of the low-light sensor module symmetrically installed, and the IMU module is built into the inner side of the first frame; the augmented reality display module comprises a second frame, shading goggles, The main control chip, micro-display, optical combiner and diffraction optical waveguide are provided. The second frame is connected to the lower side of the first frame. Both sides of the frame are placed above the ears when worn. The main control chip is installed in the first frame. The sunshade goggles are installed on the outer side of the lower edge of the second frame and are located in front of the eyes when in use. The diffraction optical waveguide is located on the inner side of the sunshade goggles. The micro-display and optical combiner are installed on the inner side of the second frame. The input end of the main control chip is connected to the infrared light sensor module, the low light sensor module, the visible light camera module and the IMU module, and the output end is connected to the micro-display. The micro-display is connected to the optical combiner, and the optical combiner is connected to the optical waveguide sheet.

2. A head-mounted fusion night vision device with dual-light multi-path according to claim 1, characterized in that: The connection between the main control chip, the infrared light sensor module, the low-light sensor module, the visible light camera module, the IMU module, the micro display, the optical combiner, and the optical waveguide is a data line connection.

3. The head-mounted fusion night vision device with dual-light multi-path according to claim 1, characterized in that: The infrared light sensor module and the two low-light sensor modules synchronously capture images.

4. The head-mounted fusion night vision device with dual-light multi-path according to claim 1, characterized in that: It also includes an LED white light source, which is installed below the visible light camera module.

5. The head-mounted fusion night vision device with dual-light multi-path according to claim 1, characterized in that: The visible light camera module adopts a binocular RGB camera.

6. The head-mounted fusion night vision device with dual-light multi-path according to claim 1, characterized in that: The infrared light sensor module adopts a non-cooling infrared sensor.

7. The head-mounted fusion night vision device with dual-light multi-path according to claim 1, characterized in that: The low-light sensor module adopts a CMOS sensor.

8. The head-mounted fusion night vision device with dual-light multi-path according to claim 1, characterized in that: The micro display is a Micro-LED micro display.

9. The head-mounted fusion night vision device with dual-light multi-path according to claim 1, characterized in that: The diffraction optical waveguide adopts a volume holographic optical waveguide.

10. A head-mounted fusion night vision device with dual-light multi-path according to any one of claims 1-9, characterized in that: The main control chip is Rockchip RK3588.

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