Introduction
Umicore's GASIR® infrared lenses are designed for compatibility with a wide range of camera cores, offering a cost-effective solution for high-resolution thermal imaging and sensing applications. The lens is passively athermalized and suitable for the latest 17 µm qVGA and 25 µm qqVGA uncooled detectors.

Optical Specifications
- Focal Length: 6.75 mm
- Aperture-based f-number: f/1.41
- Maximum Image Circle: 6.8 mm
- Waveband: 8-12 µm
- Transmission: > 90% average over waveband
- Focus Range: 0.6 m to infinity with 0.07 mm refocus
- Assembly Weight: 20.8 g
- Field of View:
- 320 x 240 17 µm qVGA: 46.7° (H) x 34.8° (V) - 58.8° (diagonal)
- 160 x 120 25 µm qqVGA: 34.1° (H) x 25.5° (V) - 42.8° (diagonal)
- 160 x 120 17 µm qqVGA: 23.1° (H) x 17.3° (V) - 28.9° (diagonal)

Environmental Specifications
- Operating Temperature: -40 °C to +60 °C
- Storage Temperature: -57 °C to +105 °C
- Vibration: MIL-STD-810E Method 514.4 Proc I Cat 8
- Mechanical Shock: MIL-E-5400T
- Solar Radiation: MIL-STD-810G Method 505.5
- Sealing: IP67

Coatings
- Front Surface: iDLC, durable coating on GASIR® @ 8-12 µm
- Internal Surfaces: High efficiency AR coating on GASIR® @ 8-12 µm

Assembly & Interface Specifications
- Material: Black anodized aluminium
- Image Plane-related Values: Valid with 1 mm Ge window

Certifications
Electro-Optic Materials is ISO certified: ISO 9001 & ISO 14001.

Contact Information
Umicore Optical Materials, Watertorenstraat 33, B2250 Olen, Belgium. Tel: +32 14 24 57 00, Fax: +32 14 24 55 34. Email: [email protected]. Website: www.optics.umicore.com.

Note
Umicore Infrared Optics reserves the right to amend or withdraw specifications without prior notice.