In-House Design, prototyping and Production of Multi-Spectral Infrared Lens Assemblies
Utilize Crystalline Materials and our Proprietary Multispectral Chalcogenide Glass
Custom Designs for Cooled and Uncooled Cameras
Overview
Utilizing our proprietary Infrared Glasses, our engineering group designs infrared multispectral lens systems. These lens assemblies are each designed for specific detectors, whether cooled or uncooled, while maintain superior operation across the entire, and often very wide, wavelength range. Contrary to using a lens assembly designed for one waveband and then needing to refocus it when imaging at other wavebands, our lens assemblies are designed with minimal focus shift across the spectrum. Below are a couple of examples of Multispectral lenses for Cooled and uncooled detectors we have designed and built. Please contact us for a custom design for your needs.
2-14 µm for Uncooled Cameras
| Parameter | Notes | Design | Unit |
|---|---|---|---|
| Waveband |
Multispectral |
2 – 12 |
µm |
| EFL |
Magnification-based |
19 |
mm |
| F/# |
1.1 |
||
| Detector Resolution |
Horizontal x Vertical / Pitch |
640×480 / 17µm |
pixels |
| Field of View |
Vertical FOV |
24.3 |
deg |
|
Horizontal FOV |
32.0 |
deg |
|
|
Diagonal FOV |
39.3 |
deg |
|
| MTF – Min Sag/Tan at 100 lp/mm (2-14µm waveband) |
Diffraction Limited MTF (Ref. Only) |
68 |
% |
|
MTF at On-Axis Field (image center) |
65 |
% |
|
|
MTF at Vertical FOV |
49 |
% |
|
|
MTF at Horizontal FOV |
42 |
% |
|
|
MTF at Diagonal FOV (image corner) |
50 |
% |
|
| Distortion |
At Corner Field |
2 |
% |
| Relative Illumination |
At HFOV |
83 |
% |
|
At Corner Field |
77 |
% |
Designed for LightPath’s MANTIS, Uncooled Multispectral Camera
1-5 µm for Cooled Cameras
| Parameter | Notes | Design | Unit |
|---|---|---|---|
| EFL |
Magnification-based |
15.0 |
mm |
| F/# |
Set by Cold Stop |
1.2 |
|
| Detector Resolution |
Horizontal x Vertical / Pitch |
1280×1024 / 5µm |
pixels |
| Field of View |
Vertical FOV |
20 |
deg |
|
Horizontal FOV |
25 |
deg |
|
|
Diagonal FOV |
32 |
deg |
|
| MTF – Avg Sag/Tan at 100 lp/mm (1.0-5.2µm waveband) |
MTF at On-Axis Field (image center) |
40 |
% |
|
MTF at Vertical FOV |
35 |
% |
|
|
MTF at Horizontal FOV |
33 |
% |
|
|
MTF at Diagonal FOV (image corner) |
21 |
% |
|
| Distortion |
At Corner Field |
5 |
% |
| Relative Illumination |
At HFOV |
86 |
% |
|
At Corner Field |
78 |
% |
Related Capabilities
Contact
Jason Messerschmidt
Vice President Of Global Sales & Marketing