Plano-Convex Cylindrical Lenses, N-BK7, AR-Coated: 350-700 nm
|A-Coated Plano-Convex Cylindrical Lensesa|
|Broadband AR Coatingb||350 - 700 nm|
|Design Wavelength||587.6 nm|
|Length Tolerance||+0.00 / -0.10 mm|
|Height Tolerance||+0.00 / -0.10 mm|
|Center Thickness Tolerance||±0.2 mm|
|Focal Length Tolerance||±1%|
|Surface Quality||60-40 Scratch-Dig|
|Centration||For f ≤50 mm: ≤5 arcmin|
For f >50 mm: ≤3 arcmin
(Peak to Valley)
|Height (Plano, Curved)||λ/4, λ|
|Length (Plano, Curved)||λ/4, λ/cm|
|Clear Aperture||>90% of Surface Dimensions|
Positive cylindrical lenses are ideal for applications requiring magnification in one dimension. While spherical lenses act symmetrically in two dimensions on an incident ray, cylindrical lenses act in the same manner but only in one dimension. A typical application is to use a pair of cylindrical lenses to provide anamorphic shaping of a beam. A pair of positive cylindrical lenses can be used to collimate and circularize the output of a laser diode. Another application possibility would be to use a single lens to focus a diverging beam on to a detector array. To minimize the introduction of spherical abberations, collimated light should be incident on the curved surface when focusing it to a line, and light from a line source should be incident on the plano surface when collimating.
For cage system and lens tube compatibility, please see our Mounted Plano-Convex Round Cylindrical lenses. These lenses are typically easier to integrate into our standard optomechanics.
All cylindrical lenses can be ordered uncoated and the cylindrical lenses made from N-BK7 can be ordered with one of the following broadband AR coatings: -A: 350-700 nm, -B: 650-1050 nm or -C: 1050-1620 nm
These high performance multilayer AR coatings have an average reflectance of less than 0.5% (per surface) across the specified wavelength ranges. The central peak in each curve is less than 0.25%. These coatings are designed for angles of incidence between 0 and 30 degrees (0.5 NA). For optics intended to be used at large angles, consider using a custom coating optimized at a 45 degree angle of incidence; these coatings are effective from 25 to 52 degrees. The plot shown below indicates the performance of the standard coatings in this family as a function of wavelength. Broadband coatings have a typical absorption of 0.25%, not shown in the reflectivity plots.