Optical BK7 Fused silica cylindrical lens

الوصف

Cylindrical lens is used to correct astigmatism in the eye, and, in rangefinders, to produce astigmatism, stretching a point of light into a line.They are available in either plano concave or plano convex configurations. Plano-Concave Cylindrical lenses have a negative focal length and are used for image reduction or to spread light. Plano-Convex Cylindrical lenses have a positive focal length, which makes them ideal for collecting and focusing light for many imaging applications.
Plano-convex cylindrical lens,plano-concave cylindrical lens,bi-convex cylindrical lens,bi-concave cylindrical lens,meniscus cylindrical lens,long cylindrical lens,special cylindrical lens etc..
Specifiction of our cylinderical lens as follow:
*Material BK7 or other optical materials
*Dimension Tolerance *0.0 *- *0.1mm
*Center Thickness +/*0.1mm
*Focal Length Tolerance+/*1%
*Surface Quality:*0/*0
*Surface Figure lambda/2 at **3nm on plano side
*Clear Aperture >*0%
*Chamfer 0.*5mm at *5 degree typical
*Coating Optional