
Optical lenses
Optical lenses are transparent objects designed to bend and focus light rays to form clear images. They work based on the principle of refraction, where light changes speed as it passes through different materials. Concave lenses curve inward and spread light rays, used in devices like eyeglasses for nearsightedness. Convex lenses curve outward and converge light rays, enabling magnification in microscopes and cameras. The shape and material of a lens determine how it bends light, affecting focus and image quality. Lenses are essential in many optical devices, providing clarity and vision correction across various applications.