Hangzhou Shalom Electro-optics Technology Co., Ltd. 260mm f/1.3 Motorized Lenses for LWIR Thermal Imaging 303-050

Features: • Focal length up to 300mm • Fixed, Manual or motorized focusing mechanism • Working temperature range: -40°C to 60°C • Fit for a variety of detectors For a thermal camera, Field of view (FOV) is defined as the maximum angle that the device is sensitive to the Infrared electromagnetic radiations. The focal length of the thermal lens modules and the dimension of the sensor/detector determine the FOV. For a given dimension of the detector, FOV is only dependent upon the focal length of the lenses. Unlike a set of double FOV lenses which has two switchable focal lengths, or a set of zoom lenses that has continuous variable focal lengths between a given range, a set of LWIR single FOV lenses features a fixed focal length, and therefore, a fixed FOV. In fact, most thermal imaging lenses are single FOV lenses. However, in real-life cases, although most single FOV thermal imaging lenses are devised with one definite focal length, manufacturers often incorporate some minute adjusting mechanism into the lenses, so that users could calibrate the scope and adjust the visual distance, whether the aiming objects are near or distant, users are able to bring the objects intended for observation into focus. Theoretically, the focal length still remains “fixed”, and the FOV the same, but is variable to a quite subtle extent. There are two mechanisms for adjusting the focal length, manual focusing and motorized. Manual Focusing Lenses are lenses with manual focusing mechanisms, offering users options to manipulate the forming of appropriate images. While Motorized Lenses allow users to adjust the camera from remote distances without manual handling. Hangzhou Shalom EO offers a series of IR single FOV lenses for LWIR (8-12 micro) thermal imaging cameras with focal lengths from 4.8mm to 300mm, fit for uncooled FPA detectors ranging from a low resolution of 160x120 pixels to a high resolution of 1024x768 pixels. Each of these thermal camera lenses from Shalom holds a designated focal length and provides a certain FOV. However, for the convenience of practical usage, for most off-the-shelf LWIR single FOV lens modules, the configured focal length is slightly adjustable, either using a manual focusing mechanism or a motorized mechanism, and lenses with absolute, invariable fixed focal lengths are also available. You might select our LWIR manual Focus Lenses, motorized Lenses, or fixed focal length lenses according to your requirements. Besides the off-the-shelf products, custom free-design IR thermal imaging lenses could also be tailored.