Cylindraical Lenses

Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism, tretching a point of light into a line, they are widely used in bar code scanning, projection optics systems, laser measurement systems and holography.
Cylindrical lenses are available in either plano-concave or plano-convex configurations from Core Optronics, Plano-concave lenses have a negative focal length and are used for image reduction or to spread light Plano-convex lenses have a positive focal length, which makes them ideal for collecting and focusing light for many imaging applications.
Attribute | Specification |
Typical Material | On request, for example N-BK7, H-K9, Fused Silica, N-SF10, etc |
Diameter Tolerance (mm) | ??0.2 (General), ??0.05 (High Precision) |
Focal Length Tolerance (mm) | ??2% |
Centration | <3 arc min |
Surface Figure X (per 25mm@632.8nm) | ??/2 (General), ??/4 (High Precision) |
Surface Figure X (per 25mm@632.8nm) | 2?? (General), ?? (High Precision) |
Surface Quality | 60/40 (General), 10/5 (High Precision) |
Bevel (face width x 450) | <0.2-0.5mm (General), 0.05-0.2 (High Precision) |
Coating | unpon request |