MWIR Dual FOV Lenses for Thermal Imaging Camera
Dual Field of View: Dual FOV lenses have a built-in mechanism that allows switching between two different focal lengths. This provides:
- Wide-Angle Mode: A shorter focal length for observing broader areas.
- Narrow-Angle Mode: A longer focal length for capturing detailed images of closer objects.
High Transmission and Low Distortion: These lenses are optimized for high transmission in the MWIR wavelength range, ensuring excellent image quality with minimal distortion.
Modulation Transfer Function (MTF): The optical design of dual FOV lenses ensures high MTF qualities, which means that the lenses can accurately reproduce fine details and provide high-contrast images.
Applications: Surveillance and Security, Industrial Inspection, Scientific Research, etc.
Dual FOV lenses are specialized optical components designed to provide two different fields of view (FOV) in a single lens module. These lenses switch between two focal lengths, allowing users to capture images with different levels of magnification and FOV. This feature is particularly useful in various thermal imaging applications, offering flexibility in observing both wide areas and detailed close-ups.
Optical Parameters:
| Focal Length(EFL) | 40mm(WFOV)/ 240mm(NFOV) |
| f Number (f#) | 4.0 |
| Wavelength Range | 3.5μm-5μm
4.7μm~7.8μm |
| Detector | 640×512-15μm, Cooled
320×256-30μm, 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% |
Key Features of MWIR Dual FOV Lenses:
1.Dual Field of View: Dual FOV lenses have a built-in mechanism that allows switching between two different focal lengths. This provides:
- Wide-Angle Mode: A shorter focal length for observing broader areas.
- Narrow-Angle Mode: A longer focal length for capturing detailed images of closer objects.
2.High Transmission and Low Distortion: These lenses are optimized for high transmission in the MWIR wavelength range, ensuring excellent image quality with minimal distortion.
3.Modulation Transfer Function (MTF): The optical design of dual FOV lenses ensures high MTF qualities, which means that the lenses can accurately reproduce fine details and provide high-contrast images.
Kingwin Optics’ MWIR Dual FOV Lenses:
Kingwin Optics offers advanced MWIR dual FOV lenses designed for high-performance thermal imaging cameras. One notable product in this category is the 40mm/240mm f/4.0 Dual FOV Lens Module.
40mm/240mm f/4.0 Dual FOV Lens Module:
1.Specifications:
- Wide-Angle Mode: 40mm focal length for broader observation.
- Narrow-Angle Mode: 240mm focal length for detailed close-up imaging.
- Aperture: f/4.0, providing a balance between depth of field and light transmission.
2.Optimized for Cooled Detectors:
Detector Configuration:
- 640×512-15μm MWIR wavelength range of 3.5~5.0μm.
- 320×256-30μm MWIR wavelength range of 4.7-7.8μm.
These configurations are suitable for InSb FPA (Indium Antimonide Focal Plane Array) detectors, commonly used in high-sensitivity thermal imaging systems.
3.Customization: The optical prescription and specifications of the dual FOV lens modules can be customized and modified upon request, ensuring they meet specific application requirements.
Applications of MWIR Dual FOV Lenses:
- Surveillance and Security: Dual FOV lenses are ideal for surveillance systems, providing the flexibility to monitor wide areas and zoom in on specific points of interest for detailed inspection.
- Industrial Inspection: In industrial settings, these lenses allow operators to switch between overviewing large machinery and inspecting small components for thermal irregularities.
- Scientific Research: Researchers benefit from the ability to capture both wideIndustrial Inspection-field and high-magnification thermal images, useful in various scientific investigations and environmental studies.
Benefits of Dual FOV Lenses:
- Versatility: Dual FOV lenses offer the ability to switch between different viewing modes, making them adaptable to various observational needs.
- Enhanced Detail: The capability to zoom in and out without changing the lens module enhances the detail and flexibility in thermal imaging.
- Time Efficiency: Switching FOVs without the need to change lenses saves time and improves operational efficiency.
Kingwin Optics’ MWIR dual FOV lenses combine high performance with flexibility, making them an excellent choice for demanding thermal imaging applications. The ability to switch between wide-angle and narrow-angle views without compromising image quality makes these lenses valuable tools in various fields.
