Lens A lens is a transparent optical component or device that refracts or bends light rays passing through it, focusing or diverging them to form an image. Lenses are essential elements in optical systems, cameras, telescopes, microscopes, eyeglasses, and other imaging devices, where they play a crucial role in magnifying, magnifying, and manipulating light to capture, project, or view images.
Lenses can be made from various materials, such as glass, plastic, and crystalline substances, and come in different shapes, sizes, and configurations, including convex lenses, concave lenses, cylindrical lenses, and aspherical lenses. Lenses exhibit properties such as focal length, optical power, aberrations, and aperture size, which determine their optical performance and imaging characteristics. By controlling the curvature and thickness of the lens surfaces, designers can achieve precise control over the focusing, resolution, and distortion of images in optical systems. |