Night vision imaging device

By designing a night vision imaging device, using light source module, dimming module, video processing module, digital micromirror device and control module, the problem that traditional projectors cannot effectively display low-light night vision simulation scenarios is solved, and high-quality night vision imaging is achieved, with military benefits.

CN111711808BActive Publication Date: 2025-03-25AIR FORCE MEDICAL CENT PLA
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Patent Information

Application Number
CN202010742025.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-07-28
Publication Date
2025-03-25
Estimated Expiration
2040-07-28

AI Technical Summary

Technical Problem

Traditional projectors cannot effectively display low-light night vision simulation scenes, resulting in small dynamic range of images, low contrast, poor imaging quality, and inability to present halos, flashes and other phenomena under night vision glasses.

Method used

A night vision imaging device is designed, including a light source module, a dimming module, a video processing module, a digital micromirror device and a control module. The full-color image signal is converted into a grayscale image signal through gamma transformation, and the night vision scene is displayed through near-infrared light projection.

Benefits of technology

It has achieved the ability to provide close to real low-light night vision scene images to night vision goggles wearers, improve the imaging quality, and effectively present halo and flash phenomena under night low-light conditions, which has military benefits.

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Abstract

The invention discloses a night vision imaging device, comprising: a light source module, a dimming module, a video processing module, a digital micromirror device and a control module; the light source module is used to generate light; the dimming module is connected to the light source module and is used to adjust the brightness of the light output by the light source module; the video processing module is used to receive a first image signal of a night vision scene and convert the first image signal of the night vision scene into a second image signal of the night vision scene; the control module is respectively connected to the video processing module and the digital micromirror device and is used to control the digital micromirror device to deflect according to the second image signal of the night vision scene; the digital micromirror device is arranged on the optical path of the light source module and is used to reflect the light output by the light source module at the deflection angle controlled by the control module to form an image light source. The device can provide an excitation signal close to a real low-light night vision scene for a night vision goggle and can be used to display a simulated vision under low-light conditions at night.
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