What are six types of lenses?
Optical engineering and vision correction utilize diverse lens configurations characterized by their geometric curvature and light-bending properties. Six primary types of lenses include plano-convex lenses, which feature one flat surface and one outward-curving surface to converge light rays; plano-concave lenses, having one flat and one inward-curving surface to diverge light; biconvex lenses, curving outward on both sides to magnify and focus images; biconcave lenses, curving inward on both sides to diverge parallel light beams; meniscus lenses, possessing one convex and one concave surface used in complex optical systems to correct aberrations; and Fresnel lenses, utilizing concentric grooved rings to achieve lightweight, thin focusing surfaces commonly used in lighthouses and projection displays.
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