An achromat is a lens consisting of two cemented elements made of different materials, usually flint glass with crown glass. The achromat offers superior correction of spherical aberration in monochro..
We call them Meniscus lenses because the two curves of the lens lies on the same direction, just like a meniscus when view by its cutaway view. Specifications Material: ...............................
Double-concave lenses are normally used in combination with other lenses. Typical applications include laser beam expanders, optical character readers, viewers, and projection systems. Specificati..
These lenses are primarily used for imaging at close to 1:1, illustrates their function. The convex surfaces of approximately equal to the radius of curvature. The lenses have very low optical aberrat..
Plano-concave lens has a negative focal length, diverges collimated incident light, and forms only virtual images which are seen through the lens. It is often used to expand light beams or increase fo..
Plano-convex lenses have low spherical aberration. Use them with the plano side facing the point source or the focus and the curve side towards the collimated beam. In a Lens, the following parameter..
