Negative Plano Concave(PCV) oblong cylinder lenses can be used for beam expander application. The oblong design allows the Positive Plano Convex(PCX) cylinder to gather the entire diverging beam from the Negative Plano Concave(PCV) cylinder.
| Specifications | |
| Material | Optical glass, Fused Silica, CaF2, MgF2 ... |
| Dimension Tolerance | +/-0.05mm |
| Centration | 3 arc minutes |
| Clear Aperture | >95% |
| Surface Figure | 1/4 wave @632.8nm |
| Surface Quality | 10-5 scratch and dig |
| Bevel | 0.1mmX45 degree |
| Coating | None, AR, AL... |
| Specification | |||||||
| F(mm) | X(mm) | Y(mm) | R(mm) | C.T (mm) | E.T (mm) | Fb (mm) | Item Number |
| -150.0 | 40.0 | 20.0 | 77.20 | 3.0 | 3.7 | -152.0 | ECV-001 |
| -12.7 | 10.0 | 10.0 | 6.54 | 2.0 | 4.3 | -14.0 | ECV-002 |
| -25.0 | 10.0 | 10.0 | 12.87 | 2.0 | 3.0 | -26.3 | ECV-003 |
| -50.0 | 20.0 | 20.0 | 25.73 | 2.0 | 4.0 | -51.3 | ECV-004 |
| -75.0 | 20.0 | 20.0 | 38.60 | 2.0 | 3.3 | -76.3 | ECV-005 |
| -100.0 | 40.0 | 20.0 | 51.47 | 3.0 | 4.0 | 102.0 | ECV-006 |
| -200.0 | 20.0 | 20.0 | 102.93 | 3.0 | 3.5 | -202.0 | ECV-007 |
| -250.0 | 20.0 | 20.0 | 128.67 | 3.0 | 3.4 | -252.0 | ECV-008 |
| -500.0 | 20.0 | 20.0 | 257.33 | 3.0 | 3.2 | -502.0 | ECV-009 |
| -500.0 | 40.0 | 20.0 | 257.33 | 3.0 | 3.2 | -502.0 | ECV-010 |
| -1000.0 | 20.0 | 20.0 | 514.66 | 3.0 | 3.1 | -1002.0 | ECV-011 |
| -1000.0 | 40.0 | 20.0 | 514.66 | 3.0 | 3.1 | -1002.0 | ECV-012 |
