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Business unit / dept.: Electro-Optic Materials

25 mm f/1.0 M25

25 mm f/1.0 M25

Umicore’s GASIR® infrared lenses have been developed for an easy fit with a wide range of camera cores. Our catalog lenses provide a cost-effective solution for high-resolution thermal imaging and sensing applications.
This passively athermalized infrared lens fits the latest 12 μm VGA uncooled detectors or smaller. Its low distortion and extreme sharpness makes it ideally suited for use in thermal imaging applications.

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Optical Properties

Product number (HEAR)

18073_100

Product number (DLC)

17056_100

Focal length

25 mm

F-number

f/1.0

Transmission (HEAR)

> 94%

Transmission (DLC)

> 87%

Focus range

0.5 m to infinity with 1.2 mm refocus

Waveband

8 - 12 µm

Mechanical properties

Weight (HEAR)

60.9 g

Weight (DLC)

60.9 g

Interface thread

M25x0.5

Back focal length*

9.70 mm

Flange back distance*

19.47 mm

value applicable with 1 mm Ge window (not included)

Environmental properties

Operating temperature

-40 °C to +80 °C

Storage temperature

-57 °C to +105 °C

Fields of view

Detector
HFoV
VFoV
DFoV
640×512 12 µm
17.6°
14.1°
22.5°
640×480 12 µm
17.6°
13.2°
22.0°
384×288 17 µm
15.0°
11.2°
18.7°
320×240 17 µm
12.5°
9.4°
15.6°
320×240 12 µm
8.8°
6.6°
11.0°
336×256 12 µm
9.3°
7.1°
11.6°
206×156 12 µm
5.7°
4.3°
7.1°
160×120 17 µm
6.2°
4.7°
7.8°
80×80 34 µm
6.2°
6.2°
8.8°
160×120 12 µm
4.4°
3.3°
5.5°

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