SF35L2 Ge Lens Technical Data
產品編號: SF35L2
產品描述:
Module | SF35L2 | Detect ) | Identify | Verify | |
Focus Length | 35mm | ||||
F number | F1.2 | ||||
Lens mounting | M25*0.5 | ||||
Lenses back distance range | 13~19.22mm( with lock | ||||
Idoneity of detector diagonal | ≤14mm | ||||
FOV(H×V) | 17μm384×288 | 10.7 ゜×8.0 ゜ | 1029m | 257m | 129m |
25μm384×288 | 15.6 ゜×11.7 ゜ | 700m | 175m | 88m | |
17μm640×480 | 17.7 ゜×13.3 ゜ | 1029m | 257m | 129m | |
Lenses Structure | 2G(spherical*2) | The above data according to the Johnson criterion calculation (1.5 pixels for detection , 6 pixels for identification,12 pixels for verification, the probability is 50%, the contrast of target and background is 1). The target size is calculated based on the critical size of the car( 2.3 meters). The actual range will be affected by other factors such as attenuation vary, different climatic conditions, the thermal sensitivity of the detector pixel, noise, image algorithm, target background difference. | |||
Lenses Material | High pure Ge Monocrystal | ||||
Operating Wave length(μm) | 8~14 | ||||
Distortion | <0.7% | ||||
Central MTF | 0.7 @20 line to/mm | ||||
Marginal MTF | 0.5 @20 line to/mm | ||||
Lens coating | AR | ||||
Coating transmissivity | 96% | ||||
Bets imaging range | 1m~∞ | ||||
Focusing | Fixed | ||||
Intercept | 14.5mm | ||||
Exposed parts waterproof | Yes | ||||
Operating temperature | -40℃~+60℃ | ||||
Weight | 40g(No lens cover) | ||||
Max diameter | Φ36mm | ||||
Length | 25.4mm | ||||
Aperture | Fixed circular aperture | ||||
Standard accessories | Front & Back cover | ||||