Double convex lens is a kind of double convex lens, which includes an incident plane and an injection plane, and is characterized by a long focal length at the middle part of the lens plane and a short focal length at the end of each lens plane. Double convex lenses are mainly used to gather light from point
sources or to transmit images to other optical systems. It can be divided into non-coated
and coated anti-reflective multilayer film lens with visible light band. The focal length of a single lens is the distance from the
main point to the focus. The lens is designed to have a wavelength of 546.1 nm(e of the green mercury line).Since the focal length
varies with the wavelength, when applied to other wavelengths, the focal length also varies.
We also offer plano-concave lenses, which have negative focal length components and one concave surface. For information on our
optic lens custom work, please feel free to contact us.