Wavelength photoelectric zinc selenide cylindrical lens optical lens focusing lens laser lens laser cutting

Glass cylindrical lens (glass cylindrical lens)

The glass cylindrical lens is used to focus the incident ray beam on a single focal line instead of a single focal point, and it has both positive and negative focal lengths.

Diameter tolerance:+ 0/-0.25 mm
Thickness tolerance: ±0.25mm
Parallelism:≤ 10Arcsec or 30 ± 5Arcmin
Clear aperture:≥ 85% center diameter
Surface quality:10 - 5 Scraping
Antireflection film:R ≤ 0.25% @1064nm per surface (single wavelength) | R ≤ 0.3% @1064nm (dual wavelength)
Damage threshold:10J/cm², 10ns, 20Hz @1064nm (single wavelength) | 3.5J/cm², 10ns, 20Hz @532nm (dual wavelength) | 7J/cm², 10ns, 20Hz @1064nm (dual wavelength)

Zinc selenide cylindrical lens

ZnSe plano-convex cylindrical focusing lenses (LZCY) and plano-concave cylindrical focusing lenses (LZCY). Cylindrical focusing lenses are round or rectangular objects with a cylindrical surface. They differ from spherical lenses in that they focus the beam of light on the focal line rather than on the focal point. Applications include laser scanners, laser diode systems, spectrophotometers, projectors, and optical data storage and retrieval systems.

Dimensional tolerance:+ 0/-0.13 mm
Thickness tolerance: ±0.25mm
Focal length tolerance: ±2％
Edge thickness change(ETV):≤ 3 arc minutes.
Clear aperture: > 90％
Surface flatness:Dia@1nm/632.8
Surface quality: 60-40 S-DAR
Coating:R per surface < 0.2% @10.6 μm

For laser cutting