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SA19L Athermal Ge Lens Technical Data

SA19L Athermal Ge Lens Technical Data

Product Code: SA19L

Description:


Module

SA19L

Detect

Identify

Verify

Focus Length

19mm

F number

F1.0

Lens mounting

M25*0.5

Lenses back distance range

12.8/18.5mm

Idoneity of detector diagonal

≤14mm

FOV(H×V)

17μm384×288

19.5゜×14.7゜

1029m

257m

129m

25μm384×288

28.4゜×21.5゜

700m

175m

88m

17μm640×480

32.0゜×25.8゜

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 Mono crystal

Operating Wave length(μm)

8~14

Distortion

<7.5%

Central MTF

0.75 @20 line to/mm

Marginal MTF

0.55@20 line to/mm

Lens coating

AR

Coating transmissivity

96%

Bets imaging range

0.3m~∞

Focusing

Athermal Fixed

Intercept

9mm

Exposed parts waterproof

Yes

Operating temperature

-40℃~+60℃

Weight

31g(No lens cover)

Max diameter

Φ29mm

Length

26.5mm

Aperture

Fixed circular aperture

Standard accessories

Front cover