Integrated Defense Practice Exam

The two colors used in phosphor technology for night vision devices are green and white. Night vision devices utilize phosphor screens that convert infrared light into visible images, and these screens primarily emit green light because the human eye is more sensitive to green wavelengths. This sensitivity enhances visibility and helps reduce eye strain during prolonged use.

Green phosphor allows for clearer images with better contrast, which is crucial for identifying objects and movement in low-light environments. White phosphor technology has emerged as an alternative, providing a different image quality that can be advantageous in certain scenarios, as it offers a more natural color representation compared to traditional green screens. Both green and white phosphor technologies have their applications in modern night vision devices, making this combination the most relevant answer.