Half-Ball (hemispherical) lenses are ideal for applications such as fiber communication, endoscopy, microscopy, optical pick-up devices, and laser measurement systems.
| ATTRIBUTE | SPECIFICATIONS |
| material | N-BK7, fused silica, sapphire, ruby, Ge, ZnS, ZnSe |
| DIAMETER TOLERANCE | +0.003, -0.003mm |
| thickness TOLERANCE | +0.05, -0.05mm |
| radius | +0.00, -0.0015mm |
| CLEAR APERTURE | >90% |
| SURFACE QUALITY | 20/10 scratch and dig |
| COATING | Without coating |
