DOUBLE CONVEX LENSES
Double Convex Lenses are made of BK7 or other materials, which are manufactured with an identical convex surface on both sides of the lens. Double Convex lenses have positive focal lengths and form both real and virtual images. Photonchina also provides precision grade Double Convex lenses with tighter manufacturing tolerances.
Photonchina Specifications
| Material: | BK7 or other glass materials |
| Design Wavelength: | 546.1nm, n=1.518721 |
| Diameter Tolerance: | +0.0/-0.1mm |
| Paraxial Focal Length: | ±2% |
| Centration: | 3 arc minutes |
| Surface Figure : | l/4 @ 632.8 nm |
| Surface Quality: | 60/40 |
| Clear Aperture: | >80% |
| Bevel: | <0.25mm X 45° |
| Coating: | Upon customer’s request |
