Cylindrical Lens
Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism, transform 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 Rectangular, circular, plano-convex, plano-concave, and achromatic configurations from DELN.
Cylindrical lenses are available in either Rectangular, circular, plano-convex, plano-concave, and achromatic configurations from DELN.
Specifications
|
Material |
BK7,UV Fused Silica, N-SF10, CaF2 etc. |
|
Dimension Tolerance |
+0/-0.1mm |
|
Thickness Tolerance |
±0.2mm |
|
Surface Quality |
60/40 or better |
|
Flatness |
1λ to λ/4@632.8nm |
|
Centration |
<3 arc minutes |
|
Focal Length Tolerance |
±2% |
|
Clear Aperture |
>90% |
|
Chamfer |
Protective <0.5mmx45deg |
|
Coating |
None, per your request |
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