LWIR 8-12 um – uncooled and cooled detector systems
9.1 mm Compact Athermalized LWIR Lens
Very-low-mass LWIR objective for embedded systems and compact airborne payloads.

Full parameter record
9.1 mm Compact Athermalized LWIR Lens – published specifications
Every value below is the reference record for this configuration. Values marked as a reference, a target or a minimum are confirmed against the detector datasheet and the approved drawing before a quotation is issued.
| Parameter | Published value |
|---|---|
| Focal length | 9.1 mm |
| F/# | 1.0 |
| Working wavelength | 8–12 μm |
| Detector reference | 640 × 512 / 12 μm |
| Field of view | 47.2° × 38.2° |
| Average transmission | ≥92% HD reference |
| Distortion | −3% |
| Focus / depth of field | Fixed, 0.5 m–∞ |
| Weight | ≤15 g |
| Dimensions | Φ20.9 × 16 mm |
| Coating reference | AR / HD |
| Environment | −40 to +60 °C; front element IP67 |
Before this configuration is released
What to confirm with us
Send these five inputs and the quotation can be prepared against your system rather than against a catalogue headline.
Related references
Other configurations in the same family
- 15–300 mm MWIR Continuous-Zoom Lens
- 18–275 mm Compact MWIR Continuous-Zoom Lens
- 75 mm F/1 Manual-Focus LWIR Lens
- 25/50 mm Dual-FOV LWIR Lens
Browse the full category page: Infrared Lenses.
Send the detector data and we will confirm the fit.
Share the detector type, resolution, pixel pitch, required field of view and the mechanical envelope. We will return the configuration route, the documents we can issue and the next sourcing step.