Economy Plano-convex(Round) Cylindrical Lenses, Uncoated/AR250-450nm
UV fused silica plano-convex cylindrical lenses feature one plano surface and one convex cylindrical surface with a positive focal length. They are widely used to focus parallel or diverging beams into a line, or to adjust the aspect ratio of images.
Tuniu Optics plano-convex cylindrical lenses are ideal for one-dimensional magnification applications. Spherical lenses affect incident light symmetrically in two orthogonal directions, whereas cylindrical lenses only refract light in a single direction. A typical application is distorted beam shaping with a pair of cylindrical lenses. Two plano-convex cylindrical lenses can collimate and circularize the output beam of laser diodes. A single cylindrical lens can also focus diverging light onto a detector array. To minimize spherical aberration, collimated light should enter the curved surface when focusing the beam into a line; when collimating a linear light source, the light should illuminate the plano surface of the lens.
Compared with H-K9L optical glass, UV fused silica offers a broader transmission spectrum ranging from 185 nm to 2.1 μm and provides high transmittance in the ultraviolet band. It features a lower refractive index, superior optical homogeneity, and a smaller coefficient of thermal expansion. Additionally, it delivers better chemical resistance and extremely low fluorescence, making it suitable for manufacturing a wide range of optical components.
Parameters
| Material | UVFS |
| Design Wavelength | 587.6 nm |
| Surface Quality | 40-20 |
| Diameter Tolerance | + 0.0/- 0.2 mm |
| Center Thickness Tolerance | ± 0.2 mm |
| Focal Length Tolerance | ± 2 % |
| Centering Tolerance | 3′~ 5′ |
| Clear aperture | > 90% |
| Bevel | 0.2 mm X 45° |
| Coating | Uncoated, Ravg < 0.5%@250~450 nm |
Model
Round Type
| Dia.*, mm | Focal Length, mm | Coating |
| Φ12.7 | 25/50/75/100 | Uncoated, Ravg < 0.5%@250~450 nm |
| Φ25.4 | 75/100/150(Uncoated), 50/75/100/150(AR250-450 nm) |
Rectangular Type
| Size, mm | Focal Length, mm | Coating |
| 10 x 10 | 12.7/20/25/40/50/75/100/150/200/250/300 | Uncoated, Ravg < 0.5%@250~450 nm |
| 20 x 10 | ||
| 30 x 20 | 25/50/75/100 | |
| 30 x 30 | 150 | Uncoated |