Scratch-resistant lenses are utilized in space primarily within the visors of space helmets to safeguard astronauts.
Originally developed by NASA, this innovative technology involves applying a special coating onto plastic lenses. This coating is described as being like a diamond-like coating, which provides significant resistance against scratches.
Purpose in Space
The core function of these lenses in a space environment is direct:
- Protect Astronauts: By forming a durable outer layer on helmet visors, the scratch-resistant coating helps maintain visibility by preventing damage that could obstruct an astronaut's view during critical missions, spacewalks, or other activities inside or outside the spacecraft.
This NASA-developed technology, initially crucial for astronaut safety and equipment longevity in the demanding space environment, has since had a significant impact on everyday life, becoming a common feature in civilian eyeglasses worn by millions.
