Double-Convex Lens, also named Bi-Convex Lens, is most suitable where the object and image are on opposite sides of the lens and the ratio of the image and object (conjugate ratio) distances is between 0.2 to 5. It is used in beam expanders,projection optics systems, optical viewers etc.
Custom Made capabilities:
| Material | N-BK7, UV fused silica glass, JGS1, SF1, SF2, and IR optical glasses, etc. |
| Diameter range | 3mm to 500mm |
| Tolerance | +/-0.05mm |
| Thickness tolerance | +/-0.05mm |
| Surface quality | 40-20 or better |
| Surface flatness | Lambda/4 |
| Centering | 3 arc mins |
| Bevel | Protective bevel |
| Coating | No coating or AR coated @ different wavelengths, R<0.5% |
