What is the impact of humidity on NVG optics?

High humidity can significantly impact night vision goggles by leading to condensation and potential fogging on the lenses. When there is a high level of humidity, moisture in the air can accumulate on the optical surfaces of NVGs. This condensation obstructs the clarity of the lenses, which can impair the user's ability to see clearly in low-light conditions. Proper management of environmental factors, including humidity, is crucial for maintaining optimal performance of NVG equipment.

Understanding the relationship between humidity and NVG optics helps in preparing for operational challenges that may be faced in varying weather conditions. Other factors, such as battery performance and visibility, may be influenced by environmental conditions, but condensation directly affects the optical performance of the goggles in a more immediate and tangible way.