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.

Datasheet  (3.1M )

Optical Properties

Product number

12025_100

Focal length

25 mm

F-number/Aperture

f/1.2

Transmission

> 94%

Focus range

1 m to infinity with refocus of 0.64 mm

Waveband

8 - 12 µm

Mechanical Properties

Mechanical shock

MIL-E-5400T

Weight

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

Solar radiation

MIL-STD-810G Method 505.5

Vibration

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

Operating temperature

-40°C to +80°C

Storage temperature

-57°C to + 105°C

Optical Properties

Product number

12026_100

Focal length

25 mm

F-number/Aperture

f/1.2

Transmission

> 87%

Focus range

1 m to infinity with refocus of 0.64 mm

Waveband

8 - 12 µm

Mechanical Properties

Mechanical shock

MIL-E-5400T

Weight

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

Solar radiation

MIL-STD-810G Method 505.5

Vibration

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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