Optical Glass Plano Convex Concave Spherical Lens - (bk7)

We are offering optical glass plano convex concave spherical lens - (bk7) etc. Plano-convex lens is widely use in optical display systems, projection optics systems, imagining optical systems, and laser measurement systems. It is best use where conjugatepoint-- object distance, s or image distance s' is more than five times of the other. This lens is almost the most super form for both collimating a point source and focusing collimated light;
plano-concave lens has a negative focal length and is typically used to cause a collimated beam to diverge as in a galilean type beam expander or telescope. Because the spherical aberration of the plano-concave is negative, it can be used to balance the aberration of other lenses.this lens is widely use in optical display systems, projection optics systems, imaging and laser measureemnt systerms;
we supply optical spherical lenses,include plano-convex spherical lens,plano-concave spherical lens,bi-convex spherical lens,bi-concave spherical lens,meniscus spherical lens,special spherical lens etc.
Specification of our plano-convex spherical lenses as follow:
*material:bk7 or other materials
*focal length:+-1%
*center thickness tolerance:+-0.01mm
*centration:1 arc minutes
*surface figure:lambda2 at 633nm on plano side
*surface quality:4020 stratchdig
*clear apenture>90%
*chamfer protective:0.25mm at 45 degree typical
*coating:optional