Infrared Optical Prisms
Precision polished prisms made of Infrared materials
Right Angle, Equilateral, and specialty shaped prisms
Standard and custom AR, HDAR and DLC Coatings
Overview
LightPath Technologies, through its subsidiary ISP Optics, has been producing prisms for over 25 years. Manufactured in our ISO 9001:2015 and ITAR certified facility, prisms are usually polished into geometrical shapes where the angle, position and number of surfaces help define its optical function. We build to print or can design a customized component using a variety of IR materials. Prisms are commonly used for folding light, rotating images within a system and laser beam steering.
If you work with a mirror today and want to consider a prism or already buy prisms, please contact us.
Typical Tolerances
| ZnSe, ZnS | CaF2, BaF2, MgF2 | Ge, Si, GaAs | Chalcogenide Glass, CdTe | |
|---|---|---|---|---|
| Length x Width |
8 – 120 mm |
8-80 mm |
8-80 mm |
8-80 mm |
| Thickness |
2 – 25 mm |
2-25 mm |
2-25 mm |
2-25 mm |
| Scratch/Dig |
40/20 |
40/20 |
40/20 |
60/40 |
| Flatness |
0.5 fr |
0.5 fr |
0.5 fr |
1.5 fr |
| Irregularity |
0.25 fr |
0.25 fr |
0.25 fr |
0.5 fr |
| Power |
0.5 fr |
0.5 fr |
0.5 fr |
1 fr |
| Roughness |
10A RMS |
10A RMS |
10A RMS |
15A RMS |
| Dimensional Tolerance |
+/-0.025 mm |
+/-0.025 mm |
+/-0.025 mm |
+/-0.025 mm |
| Angle Tolerances |
5 min |
5 min |
5 min |
5 min |
Coatings
Lightpath offers both standard, and custom optical coatings for its infrared prisms. Those include Anti Reflective (AR), High Durability AR, Spectral Filters, and protective Diamond Like Carbon (DLC) coatings.
All three of our global facilities are vertically integrated and include in-house coating and testing. For further information about available coatings please visit our coatings page or contact us.
Germanium (Ge) Equilateral Prism
Molded Prism with an Aspheric Surface (Bottom)
Diamond Turned TIR Prism
Contact
Mark Palvino
VP Sales