We supply custom optical lenses consisting of single or multiple elements (doublets etc.) and for applications ranging from a simple collection of light to precise imaging, from machine vision optics to astronomical telescopes, and from the UV/visible wavelength range to the infrared.
We are confident we will be able to meet your specified requirements; custom lenses are available from 3.5mm to 500mm diameter, with surface quality up to 10-5 scratch-dig. We offer spherical, aspherical and freeform lenses as well as a range of AR coatings and substrates (including germanium and chalcogenides for infrared optics).
LENS SPECIFICATION
| Lens Manufacturing Specifications | |||
|---|---|---|---|
| Commercial | Precision | High Precision | |
| Diameter | Ф3.5~Ф250 | Ф3.5~Ф250 | Ф3.5~Ф250 |
| Diameter Tolerance | 0/-0.02 | 0/-0.015 | 0/-0.001 |
| Thickness Tolerance (mm) | ±0.03 | ±0.01 | / |
| Surface Sag | Ra：0.001μm | Ra：0.001μm | Ra：0.0002μm |
| Radius | R5~R∞ | R5~R∞ | R5~R∞ |
| Power (P – V) | N=±5 | N=±2 | N=±1 |
| Irregularity (P – V) | ΔN=1 | ΔN=0.5 | ΔN=0.3 |
| Centering /Beam Deviation (arcseconds) | ≤60″ | ≤30″ | ≤10″ |
| Bevel Tolerance | ±0.1 | ±0.05 | ±0.02 |
| Surface Quality (Scratch-Dig) | 60-40 | 20-10 | 10-5 |
| Lens Coating Capabilities | |
|---|---|
| Substrates | All Glass Types |
| Spectral Ranges | 300～3000nm |
| Spectral Edge Tolerance | <1% Deviation, <0.2% Special Cases |
| Bandwidth | 1nm – Broadband |
| AR-Coating reflectivity | <0.3% (Absolute); <0.2% (Average) |
| Laser Damage Threshold | Up to 20 J/cm2@ 20ns Pulses |
| Durability | MIL-STD-810F, Section 507.4; MIL-C-48497A, Section 3.4.1 |
