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 RuiYi, 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.
Capability:
Parameter | Commercial | Precision | High Precision |
Dimensions | From 3 mm to 260 mm |
Radius* | From 2.5 mm to 2000 mm |
Dimensional Tolerance* | 土0.10 mm | 土0.05 mm | 土0.01 mm |
Thickness Tolerance* | 土0.10 mm | 土0.05 mm | 土0.03 mm |
Transmission Centration* | ≤6 arc minutes | ≤3 arc minutes | ≤1 arc minute |
Surface Accuracy@633nm* | λ/2 | λ/4 | λ/8 |
Surface Quality (Scratch-Dig) * (MIL-PRF-13830B)(ISO101110) | 60/40 5/2*0.4;L1*0.060 | 20/10 5/2*0.1;L1*0.020 | 10/5 5/2*0.05;L1*0.010 |
*Depending on the customer's speciflications. |
Material: Schott N-BK7, Chengdu H-K9L, Fused Silica, CaF2, etc.
