Editor’s Note: October 23, 2025: As veteran Contributor Justin Park begins testing a new round of night vision and thermal imaging gear, we’ve updated this story with some early frontrunners based on ...

Offering a high refractive index and an excellent infrared (IR) transmission range, covering from 1.8-16µm, our stock and custom-made IR Germanium Windows are sought-after components for ...

The iPhone has a hidden "night vision" feature that turns your screen red. More than giving a spy movie vibe, a red screen could help sharpen people's night vision by reducing the harmful effect of ...