Cylindrical lenses are available in either plano-concave or plano-convex configurations from Crysmit.Plano convex cylindrical lenses forms a linear image and is used to control the size of the beam in one direction only.
Compared with spherical lenses, cylindrical lenses are more difficult to manufacture. It is necessary to select materials reasonably (texture, bubbles, impurities, uniformity), pay attention to the factors that affect scattering (scratches, dents, gloss), and high-quality grinding. It can be divided into non-coated and anti-reflective multilayer lens coated with visible light band. The design wavelength of the lens is 546.1nm (the e-line of the green mercury spectrum). Since the focal length changes with wavelength, when it is used for other wavelengths, its focal length also changes.
Plano Convex Cylindrical Lenses which are useful for line imaging or uni-axial magnification in a wide range of applications.
Attribute | Specification |
Material | N-BK7, Fused Silica, N-SF10, Silicon, CaF2, Sapphire, etc. |
Typical Diameter (Фmm) | 10.0, 12.7, 15.0, 20.0, 25.4, 30.0, 50.8, etc. |
Diameter Tolerance (mm) | +0.0/-0.02 (High Precision) |
Paraxial Focal Length Tolerance (mm) | ±2% |
Centration | <3 arc min |
Clear Aperture | >90% |
Surface Figure (@632.8nm) | λ /2(High Precision) |
IRR ( @632.8nm) | λ/8 (High Precision) |
Surface Quality | 10/5 (High Precision) |
Bevel (face width x 45°) | <0.25mm |
Coating | uncoated, AR, HR, PR Coating, etc. |