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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.
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Fixed Focal Length: Single FOV lenses are characterized by their fixed focal lengths, which in turn determines their FOV. The focal length and the dimension of the detector together define the FOV, with the detector dimension remaining constant.
Adjustable Focus Mechanism: Despite having a fixed focal length, single FOV lenses often include mechanisms that allow users to fine-tune the focus:
- Manual Focusing: Users can adjust the focus manually by turning a focus ring or knob.
- Motorized Focusing: Users can remotely adjust the focus using a motorized system, which is particularly useful for applications where manual adjustments are impractical.
Thermal Stability and Athermalization: Some single FOV lenses are athermalized, meaning they are designed to maintain focus despite temperature changes, ensuring consistent performance in varying environmental conditions.
Applications: Surveillance and Security, Industrial Inspection, Scientific Research, etc.
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Flexible Zooming: Smooth adjustment of focal lengths for capturing images at various distances.
High Magnification: Maximum magnification of x20.
Diffraction-Limited MTF: Outstanding Modulation Transfer Function (MTF) for sharp, high-resolution images.
Maintained Focus: Consistent focus throughout the full zoom range.
Lightweight and Large Aperture: Ideal for diverse surveillance and monitoring missions.
Compatibility: Supports high-resolution imaging with cooled detectors.
Applications: Long-range surveillance, Border and perimeter security, Search and rescue operations, High-resolution thermal imaging, etc.
