Representative image. Final geometry, finish and coating are confirmed from your drawing.
Reference · TO-ASP
Precision Aspheric Lens
Lenses
An aspheric element for compact collimation, imaging and aberration reduction, quoted from the prescription and surface tolerance.
Typical values
| Parameter | Reference |
|---|---|
| Material | Low-melting optical glass; UV fused silica by review |
| Design wavelength | 635 / 520 / 786 / 530 / 800 / 655 nm; custom |
| Diameter | 5–150 mm standard; 150–390 mm by review |
| EFL tolerance | ±1% |
| Outer diameter tolerance | +0.00 / -0.10 mm standard; +0.00 / -0.03 mm by review |
| Thickness tolerance | ±0.2 mm standard; ±0.02 mm by review |
| Surface figure | PV < 0.2 µm reference |
| Surface quality | 40/20 standard; 20/10–10/5 by review |
| Centration | <90 arcsec standard; <30 arcsec by review |
| Clear aperture | >90% |
| Coating | AR / BBAR; per drawing |
Use this table to understand what is routine, what is reviewed against a drawing and where the project needs a different route.
| Parameter | Standard | By drawing review | Notes |
|---|---|---|---|
| Material | Low-melting optical glass | UV fused silica, optical glass, Ge, ZnSe, Si | — |
| Diameter | 5–150 mm | 150–390 mm | — |
| Surface figure | PV < 0.2 µm reference | RMS ≤ 0.5 µm; PV < 0.65 µm | — |
| Centration | <90 arcsec | <30 arcsec | — |
| Coating | AR / BBAR | Laser-line, UV or durability-specific designs | — |
Aspheric surfaces reduce spherical aberration and can replace multi-element assemblies in compact systems. We review the prescription, vertex radius, conic constant, aspheric coefficients, centration and coating before quoting. The surface error and centration should be tied to the system wavefront budget.
- Laser collimation
- Compact imaging
- Aberration correction
- Custom prescription
- Low-melting glass or fused silica
- PV < 0.2 µm reference
- AR / BBAR coating
What to include in the RFQ
The following inputs let us quote the geometry, coating and inspection route without guessing.
Request a quote for this component- 01Optical drawing with diameter, EFL or radius, center thickness and tolerances
- 02Substrate grade and wavelength band
- 03Surface figure, surface quality and centration requirements
- 04Coating curve, AOI, polarization and durability requirements
- 05Prototype and annual quantity
- 06Required inspection documents
TO-PCX-NBK7
N-BK7 Plano-Convex Lens
A single-element positive lens for focusing or collimating light, supplied in N-BK7, H-K9L or UV fused silica to your drawing.
View specification
TO-BCX-NBK7
N-BK7 Biconvex Lens
A symmetric positive lens for imaging, relay and focusing where both conjugates are finite or the layout needs a compact element.
View specification
TO-PCV-NBK7
N-BK7 Plano-Concave Lens
A single-element negative lens for beam expansion, divergence and compensating optical power in a compact layout.
View specification