China 15mm Optical Glass Spherical Lens Biconvex Lens, Find details about China Biconvex Lens, Laser Optics from 15mm Optical Glass Spherical Lens Biconvex Lens
Double Convex lens, also as bi-convex lens. It is the similar function with the plano convex lens, they are all positive lens used for focus beam. The used wavelength range as 190-2100nm. Material can be N-BK7,Fused Silica,CaF2,SF11,H-BaK4,H-BaK7,etc, other special requested can be customerized. Coating still available.
Specification | commercialCommercial | High Precision |
Material | As Required Schott,CDGM.etc. | As required Schott, CDGM,etc. |
Diameter Tolerance | +0.00/-0.20mm | +0.00/-0.05mm |
Focual Length Tolerance | Typical +/-5%@633nm | Typical +/-2% @633nm |
Centration | Typical <3arcmin | Typical <3arcmin |
Surface Flatness@632.8nm | L/4 | L/8 |
Surface Quality | 80-50 | 40-20 |
Bevel | 0.2-0.5 | 0.05-0.2 |
Coating | As required, with paint, Protection coating, high precision |