Hangzhou Shalom Electro-optics Technology Co., Ltd. 250mm f/2.0 Manual Focus MWIR Thermal Camera Lenses for Cooled Detetor 311-008

Features: • Focal length range: 13mm to 400mm • Fixed, Manual, or motorized focusing mechanism • Compliant with MWIR cooled detectors • Maximum working temperature range: -40°C ~ +60°C • Off-the-shelf and custom modules available Field of view (FOV) is defined as the maximum angle at which an optic is sensitive to electromagnetic radiations with the object distance being infinite. The focal length of the lens and the dimension of the sensor/detector determine the FOV. The dimension of the detector is fixed, therefore focal length alone decides the FOV. A set of FMWIR single FOV lenses features a fixed focal length, and therefore, a certain FOV. In fact, most thermal imaging lenses are single FOV lenses. However, in real-life cases, for Fsingle FOV thermal camera lenses devised with one definite focal length, manufacturers often incorporate some focusing mechanism into the lenses, the adjustments are minute, but allow 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. FManual Focusing Lenses are lenses with manual focusing mechanisms, offering users options to manipulate the forming of appropriate images. While FMotorized Lenses allow users to adjust the camera from remote distances without manual handling. Hangzhou Shalom EO offers a series of FSingle FOV Lenses for MWIR thermal imaging cameras. Each of the lens assemblies has a certain focal length which produces a definite FOV, and the selective focal lengths for the lens modules range from 13mm to 400mm. For the convenience of actual handling, for most off-the-shelf MWIR single FOV lens modules, the configured focal length of each lens module is adjustable to a subtle degree, either using a manual focusing mechanism or a motorized mechanism. Nonetheless, MWIR lenses with absolute, invariable fixed focal lengths in addition to athermalized designs to improve thermal steadiness are also available if you prefer. Nonetheless, MWIR lenses with absolute, invariable fixed focal lengths are also available if you prefer. Besides the off-the-shelf products, custom free-design IR thermal imaging lenses could also be tailored.