Cylindrical Lens
Cylindrical lens are used to corrent astigmatism in the eye and in rangefindere, 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 lens are avaliable in either plano-concave configurations from Ruisen, plano-concave lens have a negative focal length and are used for image reduction or to spread light , plano-convex lens have a positive focal length, which make them idea for collecting and focusing light for many imaging applications.
Cylindrical optical lens Specification
| Material | BK7 , fused silica,K9 | |
| Surface Figure | λ /2@633nm on plano side | |
| Surface Quality | 60-40 | |
| Dimensional Tolerance | + 0.0mm, – 0.1mm | |
| Thickness Tolerance | ± 0.2mm | |
| Chamfer | 0.25mm at 45° typical | |
| Concentricity | 3 minutes | |
| Focal Length Tolerance | ± 1% typical | |
| Antireflection Coating | Wavelength user specified R 0.25% for V-type AR coating | |
| Clear Aperture | Exceeds central 85% of dimension | |
Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism, trenching a point of light into a line, they are widely used in bar code scanning, projection optics systems, laser measurement systems and holography.
plano-convex cylindrical optical lens with the competitive price and high quality . Cylindrical optical lens
made of BK7, UVFS or CaF2 optical material.
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