Optical Parameters:
| Focal Length(EFL) | 40mm(WFOV)/ 240mm(NFOV) | f Number (f#) | 4.0 |
| Wavelength Range | 4.7μm~7.8μm | Detector | 320x256-30μm, Cooled |
| FOV | 13.69°x10.97°/ 2.29°x1.83° | Coating | AR + DLC |
| Average Transmittance | >76% | Working Temperature Range | -40℃~60℃ |
| Maximum Diameter | 63mm | Overall Optical Length | 180mm |
| BFL | 31.63mm(include cooled detector) | Distortion | <2.5% <1% |
The Double FOV 40mm/240mm lens module is designed for cooled detector ( InSb FPA Focal Plane Arrays ) of 640x512-15μm of MWIR wavelength range 3.5~5.0μm, it is optimized optically for high transmission, good MTF and low distortion. The improvements and changes of the design is available for customer’s special request.
Curves:
1.MTF(WFOV@171p/mm)
2.MTF(NFOV@171p/mm)
3.Spot Diagram(WFOV)
4.Spot Diagram(NFOV)
5.Field Curve and Distortion(WFOV)
6.Field Curve and Distortion(NFOV)
7.Vignetting(WFOV)
8.Vignetting(NFOV)
