🤓 What is chromatic aberration and why do optical engineers spend so much time trying to get rid of it?

✨ When white light passes through an optic, each wavelength (color) is refracted (bent) by a slightly different amount

🌈 That means blue light, green light, and red light don't all focus at exactly the same point through a lens

🌠 The result? Instead of one sharp focal point, you can get colored fringes around objects and a loss of image sharpness

💻 Optical engineers have several ways to fight it, including combining different types of glass, carefully designing multiple lens elements, and using specialized optical coatings

🪄 The goal is to make all those different wavelengths behave as similarly as possible, bringing them together into the same focal plane

🌐 This video is from the Larry Laser YouTube/Instagram/TikTok channel, where you can find lots of other optics demos and explanations!


@PhysicsStation