A planar concave lens is a type of lens with a negative focal length, featuring one flat surface and one concave surface. It is typically used to diverge light beams. The lens is thinner in the middle than at the edges, causing light rays to diverge as they pass through, rather than converging as they would with a convex lens.
A plano cylindrical lens has curvature in the vertical direction like a convex lens, but no curvature in the horizontal direction. It is used to magnify a light beam in a single direction, for example, transforming a laser beam into a line or sheet of light, or changing the height of an image without altering its width.
The plano convex laser lenses is an optical element primarily used to converge parallel light. It is commonly employed in imaging, beam collimation, focusing collimation, and point source collimation applications. One side of the plano-convex lens is convex, and the plane side has a positive focal length. It is typically used in scenarios such as beam reduction, focal length reduction, or image magnification.
The Powell prism is an optical line generator prism primarily used to optimize a laser beam into a straight line with uniform light density, good stability, and excellent linearity. Through a complex two-dimensional aspheric surface design, it redistributes the light path by reducing the light in the central region and increasing it at the edges, thereby forming a straight line with evenly distributed energy.