Introduction
• Precision molded LWIR lenses using chalcogenide glass
High‐volume, cost effective manufacturing
Optimized for the 8~12 um wavelength range
• High performance LWIR lenses
FL 8.13 mm, f/1.1 lens
Use of diffractive‐aspheric lens
Ultralight, wide‐angle, passively athermalized LWIR lens
• Suitable for use with qVGA and qqVGA detectors and smaller
• Applications and capabilities
Thermal imaging and thermography
Automotive vision enhancement
Optical specifications
• Focal length : 8.13 mm
• Aperture‐based f‐number : f/1.14
• Maximum image circle : 8.56 mm
• Waveband : 8~12 um
• Focus range : 1.5 m to infinity
• Transmittance (average@waveband) : > 95 % (AR coating) / > 90 % (DLC coating)
• Field of view (FOV)
Sensor array |
Pixel size (um) |
FOV (deg) |
H |
V |
D |
384 X 288 |
17 |
49 |
36 |
63.3 |
12 |
33.8 |
25.2 |
42.8 |
320 X 240 |
17 |
40.2 |
29.8 |
51.3 |
12 |
28 |
20.9 |
35.3 |
206 x 156 |
25 |
19.3 |
14.4 |
24.1 |
Note : Each lens is optimized for a specific detector format represented by bold values.
This table shows values for other compatible detector formats with non‐optimal performance.
• Resolution (MTF Performance)
Temp.(°C) |
MTF* (%, Tan./Sag.) |
0.0F |
0.8F |
1.0F |
‐35 °C |
51 |
48/48 |
40/42 |
+20 °C |
57 |
51/54 |
43/36 |
+60 °C |
55 |
48/53 |
42/27 |
• Distortion
Sensor |
Distortion (%) |
0.0F |
0.8F |
1.0F |
384 x 288, 17 um |
0.0 |
‐8 |
‐16.2 |
Mechanical specifications
• Dimension
• Lens mount : Threaded (M25 x P0.5)
• Weight : 25 g
Environmental specifications
• Operating temperature : ‐35 °C ~ +60 °C
• Storage temperature : ‐57 °C ~ +105 °C