SNIR
75/250mm F/4.7 Dual FOV
Lens for 640x512x15μ detectors
FEATURES / APPLICATIONS / CAPABILITIES
• First COTS SNIR (1.06-5μm spectral band) zoom lens
• True very high performance
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| Optical | ||
|---|---|---|
| Focal Length / F# | 75/250 mm / F4.7 | Nominal values |
| Working spectral band | 1.06 – 1.55 and 3-5µm | Also full spectral band - continues |
| Detector (FPA) type / size | 640x512x15µ | Cooled detector, cold shield height at 19-22mm |
| FOV (degrees) | Narrow: 2.2°(H) x 2.8° (V) | |
| Wide: 7.6°(H) x 9.8° (V) | ||
| Optical Coating | ||
| All internal surfaces | HE wide band | Average transmission 75% |
| High Durability | ||
| Optical Back Focal Length | ~27 mm | From most rear mechanical part to FPA |
| Mechanical | ||
|---|---|---|
| Mechanical Back Focal Length | To match detector | With cold shield height at 19-22mm |
| Focus Zoom mechanism | Motorized | |
| LOS shift during focusing | 0.15mm on PFA (10 pixels) | Typical value |
| Focus / Zoom indication position | Included | Through encoder of motor and opto-switch. |
| Total Weight | 1.27 Kg | |
| Structure | Open frame | |
| External Dimensions | 75mm diameter x 252mm length (please refer to MICD) |
| Electrical | ||
|---|---|---|
| Power Input | 12VDC, 1.0A | Nominal |
| Communication Protocol | RS-422/232 Full Duplex | Default is RS422; Baud rate 19,200,n,8,1 |
| ENVIRONMENTAL | |
|---|---|
| Operating/Storage Temperature | -20ºC to +50ºC/ -30ºC to +70ºC |
| Front lens sealing | IP65 |
| Shock and Vibrations | Per applicable standard |