Wide-angle thermal imaging lenses are at the forefront of thermal camera technology, providing an expansive field of view essential for various applications. Unlike their narrow-angle counterparts, these lenses offer a broader perspective, crucial for comprehensive monitoring and detailed detection. They work by transforming infrared radiation into visible images that highlight temperature differences, a capability that is vital in fields such as surveillance, firefighting, search and rescue, industrial inspections, and environmental monitoring. Our case study demonstrates how their advanced wide-angle lenses significantly enhance situational awareness and improve the accuracy of thermal data analysis.
Technical Specifications
- Focal Length: 5mm
- Field of View (FOV): 90° x 70° (horizontal x vertical), 120° (diagonal)
- Distortion: Less than 30%
- Modulation Transfer Function (MTF): Greater than 40% at 30 lp/mm
- Relative Illumination: 70%
- Operating Temperature Range: -60°C to 60°C
This particular wide-angle lens features a focal length of 5mm, offering a horizontal and vertical field of view of 90° and 70°, respectively, with a diagonal field of view extending to 120°. Such a wide coverage is ideal for extensive surveillance and precise thermal inspections. The lens achieves distortion levels below 30%, ensuring that images are mostly free of significant optical distortions. Its MTF rating of over 40% at 30 lp/mm provides high-resolution imaging capabilities necessary for capturing fine thermal details. Furthermore, with a relative illumination of 70%, the lens delivers consistent image brightness across its entire field of view, reducing vignetting and enhancing overall image quality.
To read the entire case study, visit Shanghai Optics' website.
