| Message: | Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism, stretching 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 Crysmit, 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.
Plano-Concave Cylindrical Lens Plano-Convex Cylindrical Lens
Attribute Specification
Typical Material 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 |
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