LensesOptical Surfaces specialises in large lenses, including aspherics, up to 600mm diameter. The range includes singlets and air spaced doublets for astronomical use. Meniscus and cylindrical lenses, Schmidt plates, and special purpose camera objectives - all to tightly controlled specifications - are regularly in our production schedules.100mm germanium lens (right) |  |
 | Focal Length: | Up to 30m |
| Diameter: | Up to 600mm | |
| Surface Accuracy: | lambda/20 or better | |
| Surface Quality: | 20:10 scratch dig or better | |
| Materials: | All glasses, fused silica | |
 |
PrismsThe prism range includes simple right angle prisms, roof or penta, polygons and objective prisms, all in a variety of materials. |
| Dimensions: | Up to 450mm side |
| Flatness: | lambda/20 | |
| Angles: | To 1 sec of arc or better | |
| Surface Quality: | 20:10 scratch dig or better | |
| Materials: | All glasses, fused silica | |
| Laser rods in Phosphate and Silicate glass and Yag, refurbished for MOD and SERC (right) |  |