Cylindrical Round Fresnel Lens
Product DescriptionCylindrical lens are offered in both plano-concave and plano-convex configurations, they are typically used to focus incoming light to a line, or to change the aspect ratio of an image. Cylinder Lenses are available with positive or negative focal lengths, they are used for the op......
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Product Description
Product DescriptionCylindrical lens are offered in both plano-concave and plano-convex configurations, they are typically used to focus incoming light to a line, or to change the aspect ratio of an image. Cylinder Lenses are available with positive or negative focal lengths, they are used for the optics, lasers, medical science, electronics, tele-communication and others.
Specification:
| Material | N-bk7,H-K9L,Fused Silica,N-SF10,Silicon,CaF2,Sapphire etc. | ||
| Length | 2~300mm | Centration | <3 arc min |
| Height | 2~300mm | Clear Aperture | >90% |
| Radius | >1.5mm | Flatness (per 25mm at 632.8nm) | <1.5Lambda(General) <1/4Lambda(High Precision) |
| Center Thickness | >0.5mm | Irregularity of Fringes | 0.2-0.5 Lambda |
| Focal Length | 3~3000mm | Surface Quality(S/D) | 60/40,40/20 or better |
| Size Tolerance(mm) | +/-0.1mm,+/-0.05mm | Chamfer | <0.25mmx45 degree |
| Center Thichness Tolerance(mm) | +/-0.1mm,+/-0.05mm | Coating | Uncoated,AR,BBAR,Reflective |
| Focal length Tolerance(mm) | ±1% | Design Wavelength | 632.8nm |
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