25 mm f/1.2 - Athermalized Infrared Lens

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.

HEAR  (649.0K )
DLC/iDLC  (669.6K )

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 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

IP55

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

> 88%

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 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

1024x768 12 µm

27.1°

20.7°

33.3°

640x480 17 µm

24.2°

18.4°

29.8°

384x288 25 µm

21.5°

16.3°

26.5°

320x240 25 µm

18.0°

13.2°

22.3°

640x480 12 µm

17.3°

13.1°

21.5°

384x288 17 µm

14.8°

11.1°

18.4°

320x240 17 µm

12.4°

9.3°

11.0°

384x288 12 µm

10.5°

7.9°

13.1°

320x240 12 µm

8.8°

6.6°

10.9°

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Questions about the product?

contact

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Fax: +32 14 24 53 32
optics@umicore.com

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