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CN-224232045-U - Spliced wide-view-field head-mounted night vision device

CN224232045UCN 224232045 UCN224232045 UCN 224232045UCN-224232045-U

Abstract

The utility model discloses a spliced wide-view-field head-mounted night vision device, which adopts a scheme that two groups of low-light imaging channels are combined with one group of infrared imaging components, obtains a wide view field in a view field splicing mode, and utilizes an optical waveguide module to send and display images so as to obtain an AR night vision visual effect. The spliced wide-view-field head-mounted night vision device has the functional characteristics of wide view field, low prominent appearance, low-light and infrared fusion image and AR display. The device introduces the optical waveguide AR transmission scheme, and optimally designs the whole layout, thereby improving the wearing comfort of the traditional night vision goggles. By the device, not only can the wide-view night vision image and the digital information be observed, but also the front real scene can be directly seen, and the device is suitable for night reconnaissance, advancing and other works in complex environments.

Inventors

  • DING RONGZHI
  • Duan Yingzhu
  • Yu Huyan
  • ZHU YOUPAN
  • PI DONGMING
  • GU ZELIN
  • LIU SHUQING
  • MAO XIAODONG
  • LI JUNYAN
  • HONG DEHUI
  • CHEN RUOTONG
  • YANG SONG
  • YE HONGWEI
  • LIU HUAXI
  • Cao xinfei
  • XIE XINYA

Assignees

  • 云南北方光电仪器有限公司

Dates

Publication Date
20260512
Application Date
20250520

Claims (9)

  1. 1. The spliced wide-view-field head-mounted night vision device is characterized by comprising a night vision glasses main body, a goggles (15) and a battery box group; The night vision glasses main body consists of a front shell (1), a hanger interface (2), an infrared imaging group (3), a left low-light imaging group (4), a right low-light imaging group (5), a main control circuit board (6), a shuttle knob (7), a reset button (8), a power interface (9), a rear shell (10), a left optical waveguide module (11), a right optical waveguide module (12), a navigation plug-in port (13) and a lower shell (14); The battery box group consists of a battery box (16), a battery box power supply interface (17) and a magic tape (18), The night vision glasses main body is arranged on a hanger of the general helmet through a hanger interface (2), and a power interface (9) is connected to a battery box power supply interface (17) after being inserted into a power cable; The goggles (15) are arranged below the lower shell (14) of the night vision goggles and used for enabling the goggles to be attached to the face, and the battery box group is fixed to the rear portion of the helmet through a battery box magic tape (18).
  2. 2. The tiled wide-field head-mounted night vision device of claim 1, wherein: The infrared imaging group (3), the left low-light imaging group (4) and the right low-light imaging group (5) are respectively arranged in the front shell (1).
  3. 3. The tiled wide-field head-mounted night vision device of claim 1, wherein: The infrared imaging group (3) comprises an infrared objective lens and an infrared detector; The left glimmer imaging group (4) and the right glimmer imaging group (5) are composed of a glimmer objective lens, a glimmer CMOS device and an optical waveguide module.
  4. 4. The tiled wide-field head-mounted night vision device of claim 3, wherein: The infrared detector is assembled on a lens barrel of the infrared objective lens through the adapter plate, the lens barrel and the infrared detector are fixed on the front shell (1) through screws, and an optical axis of the infrared objective lens group (3) is positioned in the center right in front.
  5. 5. The tiled wide-field head-mounted night vision device of claim 4, wherein: The micro-light lens barrel fixing surface on the front shell (1) forms a certain angle with the infrared lens barrel fixing surface, and the micro-light lens barrel is connected with the micro-light imaging device through the micro-light adapter plate.
  6. 6. The tiled wide-field head-mounted night vision device of claim 3, wherein: The optical axes of the left micro-light imaging group (4) and the right micro-light imaging group (5) are 21 degrees, and respectively form 10.5 degrees with the optical axis of the infrared imaging group (3), and the total micro-light visual field after splicing is 65 degrees.
  7. 7. The tiled wide-field head-mounted night vision device of claim 1, wherein: The left optical waveguide module (11) and the right optical waveguide module (12) are installed below the rear shell (10) through screws, and the lower shell (14) is fixed with the rear shell (10) through screws and is used for protecting the optical waveguide module.
  8. 8. The tiled wide-field head mounted night vision device of any of claims 1-7, wherein the tiled wide-field head mounted night vision device comprises: the micro-light visual field is more than or equal to 65 degrees multiplied by 24 degrees; the infrared visual field is more than or equal to 32 degrees and is more than 18 degrees; The micro-light coincident view field is more than or equal to 20 degrees.
  9. 9. The tiled wide-field head mounted night vision device of any of claims 1-7, wherein the tiled wide-field head mounted night vision device comprises: the micro-light visual distance is that under the conditions that the visibility is not less than 8km, the illumination is 1 multiplied by 10 < -3 > lx to 3 multiplied by 10 < -3 > lx and the background is not transparent, the identification distance of a person who moves vertically is not less than 100m; infrared vision, namely, the identification distance of a person who moves vertically is not less than 200m when the visibility is not less than 8km, the relative humidity is not more than 60%, and the average temperature difference between a target and a background is 6K.

Description

Spliced wide-view-field head-mounted night vision device Technical Field The utility model relates to a low-light night vision mirror, in particular to a spliced wide-view-field head-mounted night vision device. Background The night vision goggles are head-mounted low-light observation lenses, the typical view field of the night vision goggles is 40 degrees, and the night vision goggles have a two-path imaging channel (double-tube binocular) structure. The wide-view night vision goggles, which generally adopt four low-light imaging channel structures, each channel consists of an objective lens, an image intensifier and an eyepiece, have a horizontal view field of more than 60 degrees and can obtain wider-range instantaneous view field information. The main view fields of the two middle imaging channels, the left auxiliary view fields of the left and right side channels and the right auxiliary view fields of the right and left side channels are arranged according to a certain angle structure to form a spliced view field, as shown in fig. 1 and 2. The night target is imaged on the cathode surface of the image intensifier by the objective lens, and the image brightness of ten thousand times level is enhanced on the fluorescent screen of the image tube by the action of a strong electric field of the electron optical system of the image intensifier, and the image brightness is amplified by the eyepiece for observation by human eyes. And the shimmer image information acquired by the four shimmer imaging channels at the same time is synthesized, and the field of view range is improved by processing complementary information among a plurality of shimmer images, so that a shimmer image with a wide field of view is generated. The optical axes of the four micro-light imaging channels are arranged together according to a certain angle by taking the rotation center of human eyes as an axis, and are lapped together in the eyepiece direction, so that the human eyes can simultaneously receive partial images from the four imaging channels, and the partial images observed by the two eyes are fused through brain vision to comprehensively form a continuous complete wide-view-field night vision image. AR is a technique of superimposing virtual information in a real scene, typically creating a virtual image in a monocular or binocular field of view, and near-eye display renders light field information to the human eye through a display device placed within a non-apparent viewing distance of the human eye, thereby displaying close-range immersive display in front of the eye for viewing. The main near-to-eye display technology in the market at present mainly comprises an optical waveguide and a free-form surface, and is widely applied to the field of civil AR (augmented reality) glasses. The common wide-view night vision goggles are four-channel low-light imaging optical machine structures, can obtain instant view field information in a larger range, can enable a user to observe the larger view field range without turning, improve reaction speed and operational safety in night tasks and severe environments, and play a due role in practice. However, for the night vision goggles with the view field of the head Dai Xingkuan, the night vision goggles adopt four-channel low-light imaging optical machine structures, the appearance volume is larger, the weight is concentrated on a lens barrel provided with an objective lens, an image intensifier, an eyepiece and the like, after the night vision goggles are worn, the appearance structure is outstanding longer, the center of gravity of the whole machine is moved forward, and the neck of a wearer generates certain traction to influence wearing comfort. In addition, the night vision goggles only have the direct visual glimmer images, have no digitization capability such as glimmer/infrared fusion images and the like, and have limited observation and recognition capability in complex environment scenes. Disclosure of utility model The utility model aims to provide a spliced wide-view-field head-mounted night vision device, which aims to solve the main technical problems that: (1) The problems of the existing wide-view night vision goggles that the four-channel low-light imaging optical machine structure, the appearance structure is outstanding, the center of gravity of the whole machine moves forward, the continuous wearing is affected and the like are solved; (2) Aiming at the defects or shortages of single night vision mode, no fusion image mode and the like, the product has a wide view field and a low-prominence appearance structure, and the wearing comfort is optimized; (3) The system has the micro-light, infrared and fusion image modes, and meets the use requirements of night reconnaissance, advancing and the like in a complex environment scene. The technical scheme of the utility model is as follows: A spliced wide-view-field head-mounted night vision device comprises two low-light imag