KEW-HD
LWIR 24-225mm F/1.5 Continuous zoom
Lens with DSP controller for 25 / 17μ detectors
FEATURES / APPLICATIONS / CAPABILITIES
• The ultimate lens for medium to long range surveillance systems
in various applications
• Excellent MTF performances, optimized for HD resolution
• Optimized for relatively short total track and low weight
• Supports multiple detector types: 640 x 480 x 25µ pitch and 1024 x 768 x 17µ pitch
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| Optical | ||
|---|---|---|
| Focal Length / F# | 24-225 mm / F1.5 | Nominal values. F# constant for all zoom range |
| Detector (FPA) type / size | 640 x 480 pixels x25 microns | |
| 1024 x 768 pixles x17 microns | ||
| FOV (degrees) | Wide FOV: 37°(H) x 28° (V) Narrow FOV: 4° (H) x 3° (V) | For detector size of 16 x 12mm (640 x 480 x 25µ) |
| Wide FOV: 38.1°(H) x 29° (V) Narrow FOV: 4.4°(H)x3.3°(V) | For detector size of 17.4 x 13.06mm (1024 x 768 x 17µ) | |
| Optical Coatings | ||
| All internal surfaces | High efficiency AR coating | Average transmission: 77% |
| Front surface | High durability AR coating | DLC is available upon request |
| Optical Total lens track | 220 mm | Nominal, From 1st lens vertex to FPA |
| Optical Back Focal Length | ~20 mm | Nominal, From last lens vertex to FPA |
| Mechanical | ||
|---|---|---|
| Mechanical Back Focal Length | 17.6 mm | Nominal |
| Focus / Zoom mechanism | Motorized | Focus range: 5m - infinity |
| Total Weight | ~3,500 grams | Nominal (Front element is sealed) |
| External Dimensions | Max Diameter: 179 mm; Length: 210 mm |
| Electrical | ||
|---|---|---|
| Power Input | 12VDC, 1.0A | Nominal |
| Communication Protocol | RS-422/232 Full Duplex | Baud rate 19,200, n, 8, 1 |
| ENVIRONMENTAL | |
|---|---|
| Operating/Storage Temperature | -32ºC to +55ºC / -40ºC to +70ºC |
| Shock and Vibrations | Per applicable standard |