These lenses are also available uncoated or with a -A, or -B antireflection coating.
Uncoated Wavelength Range: 350 nm - 2.0 µm
Much like surface flatness for flat optics, surface power is a measure of the deviation between the surface of the curved optic and a calibrated reference gauge, typically for a 633 nm source, unless otherwise stated. This specification is also commonly referred to as surface fit.
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 a line source should be incident on the plano surface when collimating.
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.
Response from Javier at Thorlabs to timefateself: Thank you very much for contacting us with your request. I will contact you directly to discuss the exact requirements of your experiment.
Poster: timefateself
Posted Date: 2011-04-21 22:08:25.0
Hello!
I want a kind of Cylindrical Lens. It will work at the center wave length 1053nm, and it must Eliminate Epherical Eberration and Eberration(Keypoints). The parameters just like LJ1567-C will be enough for me.
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All focal lengths are specified at the design wavelength (587.6 nm). Since the index of refraction for N-BK7 is inversely proportional to the wavelength, the focal length of each lens increases with increasing wavelength.
All focal lengths are specified at the design wavelength (587.6 nm). Since the index of refraction for N-BK7 is inversely proportional to the wavelength, the focal length of each lens increases with increasing wavelength.
All focal lengths are specified at the design wavelength (587.6 nm). Since the index of refraction for N-BK7 is inversely proportional to the wavelength, the focal length of each lens increases with increasing wavelength.
All focal lengths are specified at the design wavelength (587.6 nm). Since the index of refraction for N-BK7 is inversely proportional to the wavelength, the focal length of each lens increases with increasing wavelength.
All focal lengths are specified at the design wavelength (587.6 nm). Since the index of refraction for N-BK7 is inversely proportional to the wavelength, the focal length of each lens increases with increasing wavelength.
All focal lengths are specified at the design wavelength (587.6 nm). Since the index of refraction for N-BK7 is inversely proportional to the wavelength, the focal length of each lens increases with increasing wavelength.