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Business unit / dept.: Electro-Optic Materials

25 mm f/1.2 M25

25 mm f/1.2 M25

Umicore’s GASIR® infrared lenses have been developed for an easy fit with a wide range of camera cores. Our catalog IR lenses provide a cost-effective solution for high-resolution thermal imaging and sensing applications.

This passively athermalized infrared lens fits the latest 17 µm VGA and 25 µm qVGA+ uncooled detectors as well as 12 µm XGA detectors or smaller. Its low distortion makes it ideally suited for use in thermal imaging applications.

Documents

Optical Properties

Product number (HEAR)

12025_100

Product number (DLC)

12026_100

Focal length

25 mm

F-number

f/1.2

Transmission (HEAR)

> 94%

Transmission (DLC)

> 87%

Focus range

1 m to infinity with refocus of 0.64 mm

Waveband

8 - 12 µm

Mechanical properties

Mechanical shock

MIL-E-5400T

Mechanical shock (HEAR)

MIL-E-5400T

Mechanical shock (DLC)

MIL-E-5400T

Weight (HEAR)

40.3 g

Weight (DLC)

40.3 g

Interface thread

M25x0.5

Back focal length*

11.4 mm

Flange back distance*

19.47 mm

value applicable with 1 mm Ge window (not included)

Environmental properties

Sealing

IP67

Sealing (HEAR)

IP67

Sealing (DLC)

IP67

Solar radiation

MIL-STD-810G Method 505.5

Vibration

MIL-STD-810E Method 514.4 Proc I Cat 8

Vibration (HEAR)

MIL-STD-810E Method 514.4 Proc I Cat 8

Vibration (DLC)

MIL-STD-810E Method 514.4 Proc I Cat 8

Operating temperature

-40°C to +80°C

Storage temperature

-57°C to + 105°C

Fields of view

Detector
HFoV
VFoV
DFoV
1024×768 12 µm
27.1°
20.7°
33.3°
640×480 17 µm
24.2°
18.4°
29.8°
384×288 25 µm
21.5°
16.3°
26.5°
320×240 25 µm
18.0°
13.6°
22.3°
640×480 12 µm
17.3°
13.1°
21.5°
384×288 17 µm
14.8°
11.1°
18.4°
320×240 17 µm
12.4°
9.3°
15.4°
384×288 12 µm
10.5°
7.9°
13.1°
640×512 17 µm
24.2°
19.6°
30.5°
640×480 10 µm
14.5°
10.9°
18.0°
320×240 10 µm
7.3°
5.5°
9.1°
160×120 17 µm
6.2°
4.7°
7.8°
336×256 12 µm
9.2°
7.0°
11.5°
320×240 12 µm
8.8°
6.6°
10.9°
206×156 12 µm
5.6°
4.3°
7.1°
80×80 34 µm
6.2°
6.2°
8.8°
160×120 12 µm
4.4°
3.3°
5.5°

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