Common specification
| Parameter | Value |
|---|---|
| Substrate Material | H-K9L/N-BK7/Fused Silica |
| Design Wavelength | 632.8 nm |
| Dimension Tolerance | + 0/-0.2mm |
| Thickness Tolerance | ±0.15mm |
| Focal Tolerance | ±1% |
| Surface Quality | 60/40 |
| Center Thickness Tolerance | ±0.1 mm |
| Decentration | <3′ |
| Clear Aperture | >90% |
| Surface Flatness | λ/2@632.8nm |
Lens forms
| Form |
|---|
| Meniscus cylindrical lens |
| Round cylindrical lens |
| Plano-convex cylindrical lens |
| Plano-concave cylindrical lens |
Technical FAQ
Configuration questions for Cylindrical Lenses
What wavelengths does the Cylindrical Lenses cover?
Design Wavelength: 632.8 nm. Check the specification at your angle of incidence. Coating bands and grating efficiency curves are quoted at a reference angle, and both shift as that angle changes.
What size is the Cylindrical Lenses?
Dimension Tolerance: + 0/-0.2mm · Thickness Tolerance: ±0.15mm. Clear aperture is smaller than the physical part, and the mount that holds it takes more again. Size the optic from the beam diameter at that plane, including the margin the mount consumes.
What is the Cylindrical Lenses made from?
Substrate Material: H-K9L/N-BK7/Fused Silica · Surface Quality: 60/40. Substrate and coating decide thermal behaviour and cleaning method as much as optical performance. Confirm both before the optic enters a high-average-power or vacuum path.