"Photonic Barriers" and NVGs #shorts

Published on April 8, 2023
Duration: 0:39

This guide demonstrates how to overcome the 'photonic barrier' phenomenon when using night vision devices. InRangeTV instructor Karl Kasarda explains that standard IR floodlights, while improving close-up visibility, can wash out the background. The solution involves using a focused laser illuminator, like the B.E. Meyers Kiji, with a narrow beam angle to selectively illuminate targets without sacrificing background awareness or distance perception. This technique is crucial for maintaining effective situational awareness in low-light conditions, especially in environments like the desert.

Quick Summary

The photonic barrier phenomenon with NVGs occurs when close-up IR illumination washes out the background. To avoid this, use a focused laser illuminator like the B.E. Meyers Kiji with a narrow beam (e.g., 3 degrees) to selectively illuminate targets while maintaining background visibility and situational awareness.

Chapters

  1. 00:00Introduction to Photonic Barriers
  2. 00:09IR Flood Light Limitations
  3. 00:20Kiji Laser Illuminator Solution

Frequently Asked Questions

What is the photonic barrier phenomenon with night vision?

The photonic barrier occurs when intense IR illumination of a close object with NVGs washes out the background, reducing visibility of distant details and hindering situational awareness. This is often seen with standard IR floodlights.

How can the photonic barrier effect be avoided when using NVGs?

The photonic barrier can be avoided by using a focused laser illuminator, such as the B.E. Meyers Kiji, with a narrow beam angle (e.g., 3 degrees). This allows for selective illumination of targets without obscuring the background.

What are the limitations of standard IR floodlights for night vision?

Standard IR floodlights can improve close-up resolution but significantly reduce distance visibility by washing out the background. This creates the photonic barrier effect, limiting overall situational awareness.

What is the advantage of a Kiji Laser Illuminator for NVG use?

The Kiji Laser Illuminator offers a focused beam (e.g., 3 degrees) that allows operators to illuminate specific areas or targets without causing the photonic barrier effect. This maintains background visibility and enhances situational awareness.

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