Optical BK7 plano convex concave spherical lens

الوصف

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 conjugate point*- 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.*1mm
*Centration:1 arc minutes
*Surface Figure:lambda/2 at **3nm on plano side
*Surface quality:*0/*0 stratch/dig
*Clear Apenture>*0%
*Chamfer Protective:0.*5mm at *5 degree typical
*Coating:optional