Manufacturing Tolerance Chart
Tolerance guidelines for custom optical components. Three precision levels available — Commercial, Precision, and High Precision. Custom tolerances available upon request. Contact our engineers for specifications beyond these ranges.
Manufacturing Limits
| Attribute | Range |
|---|---|
| Diameter | 1 - 300mm |
| Wavelength Range | 193nm - 12um |
| Materials | BK7, UV Fused Silica, CaF2, Sapphire, Si, Ge, ZnS, ZnSe and more |
| Surface Quality | 10-5 (Scratch-Dig) |
| Surface Accuracy | λ/20 PV |
| Coating | AR / HR / BBAR / Beamsplitter / Custom |
Common Parameters (All Product Types)
| Attribute | Commercial | Precision | High Precision |
|---|---|---|---|
| Diameter (mm) | +0.00/-0.10 | +0.00/-0.025 | +0.00/-0.010 |
| Center Thickness (mm) | ±0.15 | ±0.05 | ±0.02 |
| Clear Aperture | 80% | 90% | 95% |
| Scratch-Dig (ISO 10110-7) | 80-50 | 60-40 | 10-5 |
| Surface Roughness (Å rms) | 20 | 10 | 5 |
| AR Coating | R<1.5% | R<0.25% | Custom Design |
Spherical Lenses
| Attribute | Commercial | Precision | High Precision |
|---|---|---|---|
| Radius (larger of two) | ±0.2% or 5fr | ±0.1% or 3fr | ±0.025% or 1fr |
| SAG (mm) | ±0.05 | ±0.025 | ±0.01 |
| Irregularity (waves PV) | 1.0 | 0.25 | 0.05 |
| Wedge/ETD (mm) | 0.05 | 0.01 | 0.005 |
Cylindrical Lenses
| Attribute | Commercial | Precision | High Precision |
|---|---|---|---|
| Cylinder Radius | ±0.2% or 5fr | ±0.1% or 3fr | ±0.025% or 1fr |
| Axis Orientation | ±0.5° | ±0.1° | ±0.05° |
| Cylinder Surface Irregularity (waves PV) | 1.0 | 0.25 | 0.05 |
Aspheric Lenses
| Attribute | Commercial | Precision | High Precision |
|---|---|---|---|
| Aspheric Profile Accuracy (um PV) | 2.0 | 0.5 | 0.1 |
| Slope Error (um/mm) | 1.0 | 0.3 | 0.1 |
| Surface Form Deviation (waves PV) | 1.0 | 0.25 | 0.05 |
| Centering/Decenter (mm) | 0.05 | 0.01 | 0.005 |
Freeform Optics
| Attribute | Commercial | Precision | High Precision |
|---|---|---|---|
| Freeform Profile Accuracy (um PV) | 5.0 | 1.0 | 0.2 |
| Position Tolerance (mm) | 0.05 | 0.01 | 0.005 |
| Surface Form Deviation (waves PV) | 2.0 | 0.5 | 0.1 |
Prisms
| Attribute | Commercial | Precision | High Precision |
|---|---|---|---|
| Angle Accuracy | ±3' | ±1' | ±0.5' |
| Pyramid Error | 3' | 1' | 0.5' |
| Roof Angle | 90°±3' | 90°±1' | 90°±0.5' |
| Beam Deviation | 3' | 1' | 0.5' |
Flat Optics
| Attribute | Commercial | Precision | High Precision |
|---|---|---|---|
| Flatness (per 100mm) | λ/4 | λ/10 | λ/20 |
| Parallelism (arcmin) | 3' | 1' | 0.5' |
| Transmitted Wavefront (waves PV) | 1.0 | 0.25 | 0.05 |
| Thickness Uniformity (mm) | ±0.05 | ±0.02 | ±0.01 |
Note: Tolerances shown are guidelines for prototype optics. Custom tolerances and special requirements are available upon request. Pricing increases approximately 50% when advancing from Commercial to Precision, and another 50% from Precision to High Precision. Contact us for specifications beyond these ranges.
Need specifications beyond these ranges?
Our engineers can design custom tolerances for your application.
Request a Custom Quote