When specifying a cone lens, several parameters are important, including the cone angle, clear aperture (the size of the lens), focal length, material, and any coatings that may be required for specific applications.
Material | optical glass,N-BK7 , Fused Silica, sapphire,Si,Ge,CaF2,LiF,BaF2,Znse,ZnS |
Dimensions | 3-400mm |
Dimension Tolerance | ±0.01mm |
Thickness Tolerance | ±0.01mm |
Center thickness | >1mm |
Focal Length tol. | ±1% |
Centration | 3 arc minutes |
Surface Quality | 80/50 60/40 40-20 20-10 |
Clear Aperture | >90% |
Bevel | Protective bevel as needed |
Coating | as per your request |
Wavelength Range | Substrate Material |
180nm-8.0μm | Calcium Fluoride (CaF2) |
185 nm-2.1 um | UV Fused Silica |
200 nm- 5.0 um | Sapphire |
200 nm- 6.0 um | Magnesium Fluoride (MgF2) |
220 nm to >50 um | CVD Diamond Windows |
230 nm- 1.1 um | UV Fused Silica. Textured Antireflective surface |
250 nm- 1.6 um | UV Fused Silica, for 45° AOI |
250 nm- 26 um | Potassium Bromide (KBr) |
350 nm- 2.0 um | N-BK7 |
600 nm- 16 um | Zinc Selenide (ZnSe) |
1.2- 8.0 um | Silicon (Si) |
1.9- 16 um | Germanium (Ge) |
2- 5 μm | Barium Fluoride (BaF2) |