Over 20 Diamond Turning Machines
Optics From all available IR materials
Up to 250mm diameter
Overview
With over 20 single point diamond turning machines in house, LightPath has the assets and proven expertise to supply infrared optics for the most challenging programs. The shapes we produce include rotationally symmetric spheres, aspheres and diffractive lenses with diameters as small as 3mm.
Additionally, we offer freeform machining capabilities to manufacture non-rotationally symmetric surfaces.
- Surface irregularities as low as ½ fringe P-V
- Surface roughness on most materials under 20 Angstroms RMS
- Dimensional and mechanical tolerances as low as +/-0.002mm
- Up to 550mm swing capacity for off-axis aspheres
- Production facilities in the US and Latvia
- In house coating
Typical Tolerances
| ZnSe, ZnS | CaF2, BaF2, MgF2 | Ge, Si | GaAs | Chalcogenide Glass, CdTe | KRS-5 | NaCl, KBr, KCl | |
|---|---|---|---|---|---|---|---|
| Diameter |
2.5 – 350 mm |
2.5-160 mm |
2.5-350 mm |
2.5-120 mm |
2.5-120 mm |
10-80 mm |
v10-80 mm |
| Thickness |
0.5 – 50 mm |
0.5-50 mm |
0.5-50 mm |
0.5-50 mm |
0.5-75 mm |
1-25 mm |
1-25 mm |
| S/D |
20/10 |
20/10 |
20/10 |
40/20 |
60/40 |
60/40 |
60/40 |
| Flatness |
0.25 fr |
0.25 fr |
0.25 fr |
0.25 fr |
1 fr |
8-12 fr |
2 fr |
| Irregularity |
0.25 fr |
0.25 fr |
0.25 fr |
0.25 fr |
0.5 fr |
2-4 fr |
2 fr |
| Power |
0.25 fr |
0.25 fr |
0.25 fr |
0.25 fr |
1 fr |
8-12 fr |
3 fr |
| Roughness |
10A RMS |
10A RMS |
10A RMS |
10A RMS |
15A RMS |
30A RMS |
30A RMS |
| Parallelism |
10 sec |
2 sec |
2 sec |
2 sec |
3 min |
5 min |
2 sec |
| Dimension Tolerances |
+/-0.025 mm |
+/-0.025 mm |
+/-0.025 mm |
+/-0.025 mm |
+/-0.025 mm |
+/-0.05 mm |
+/-0.05 mm |
| Diameter Tolerances |
+/-0.025 mm |
+/-0.025 mm |
+/-0.025 mm |
+/-0.025 mm |
+/-0.025 mm |
+/-0.05 mm |
+/-0.05 mm |
If You Can’t Measure It, You Can’t Make It!
In optics as we know, fabrication must happen hand in hand with metrology and measurement. Or as the saying goes, “if you can’t measure it, you can’t make it”. Lightpath employs a suite of metrology equipment, used both in process and off process.
Including
- Talysurf Profilometers
- White light interferometers
- Laser interferometers
- TRIOPTICS Opticentric® Centration Measurement Machines
- Custom Computer Generated Holograms (CGH)
Silicon Lens in Process
Metrology in Diamond Turning Cell
Nanoform X Machines For Lens Production
DT Lens Set Up
Diamond Grinding
Special Tooling and Fixturing
Diamond Turned Fresnel Mold