We provides five kinds of spheric lens forms, or shapes, that determine the imaging Characteristics of the lenses, they are plano-convex, plano-concave ,Double-convex, Double-concave and Meniscus.
Plano-convex lens has a positive focal length, which makes it ideal for collecting and focusing light for many imaging applications.
Plano-concave lens has a negative focal length and is used for image reductinon or to spread light.
Double-convex lens has a positive focal length and is useful for 1:1 imaging and in multielement systems. also known as biconvex
or equiconvex.
Double-concave lens has a negative focal length and is usefu
for 1:1 imaging and in multielement systems. also known as
biconcave or equiconcave.
Meniscus lense has a positive or negative focal length, it
forms a real or virtual image of objects.
Capability:
Parameter | Commercial | Precision | High Precision |
Outer Diameter | From 1 mm to 200 mm |
Radius* | From 0.7 mm to 10000 mm |
Diameter Tolerance | 土0.1 mm | 土0.05 mm | 土0.01 mm |
Radius Tolerance* | 土0.5% | 土0.3% | 土0.1% |
Thickness Tolerance | 土0.10 mm | 土0.05 mm | 土0.03 mm |
Transmission Centration* | ≤3 arc minutes | ≤2 arc minutes | ≤1 arc minute |
Surface Accuracy@633nm* | λ/2 | λ/4 | λ/10 |
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. |
