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 15 mm, f/1.0 lens
Use of diffractive‐aspheric lens
Ultralight, wide‐angle, passively athermalized LWIR lens
• Suitable for use with VGA and qVGA detectors and smaller
• Applications and capabilities
Thermal imaging and thermography
Automotive vision enhancement
Optical specifications
• Focal length : 15.0 mm
• Aperture‐based f‐number : f/1.03
• Maximum image circle : 8.16 mm
• Waveband : 8~12 um
• Focus range : 2 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 |
640 X 480 |
12 |
28.7 |
21.7 |
35.5 |
384 X 288 |
17 |
24.5 |
18.5 |
30.4 |
12 |
17.5 |
13.1 |
21.7 |
320 x 240 |
17 |
20.6 |
15.5 |
25.5 |
12 |
14.6 |
11 |
18.2 |
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 |
0.7F |
1.0F |
‐25 °C |
56 |
48/52 |
40/41 |
+20 °C |
57 |
48/51 |
40/41 |
+85 °C |
57 |
48/51 |
39/41 |
• Distortion
Sensor |
Distortion (%) |
0.0F |
0.7F |
1.0F |
384 x 288, 17 um |
0.0 |
‐1.48 |
‐3.07 |
Mechanical specifications
• Dimension
• Lens mount : Threaded (M25 x P0.5)
• Weight : 30 g
Environmental specifications
• Operating temperature : ‐25 °C ~ +85 °C
• Storage temperature : ‐57 °C ~ +105 °C