Edmund Optics offers a series of TECHSPEC® Double Gauss Imaging Lenses optimized for electronic imaging applications that use high-resolution cameras. They use a modified basic double gauss lens design in order to create a high-performance multi-element lens that will exceed the performance of typically available fixed focal length lenses. The symmetrical design corrects for many optical aberrations, including a distortion that is kept below 0.3%. Conventional lenses often use the same designs that were originally used for photographic objectives. A typical ½" CCD high-resolution monochrome camera (like the Sony XC-75) has a cut-off resolution of 55 lp/mm. Even when focused at infinity, our Double Gauss lenses will have a better resolution than the camera. Their expanded performance yields image resolution greater than 100 lp/mm. After inspecting the MTF curves for 50mm lenses at f/4 and a 400mm working distance, our Double Gauss lens has a much higher contrast (70%) than a typical fixed focal length lens (35%) at 55 lp/mm.
Our TECHSPEC® Double Gauss Imaging Lenses provide high-performance, support large sensor formats, have low-profile compact housings, and an exceptional value. We offer two series of these lenses, Fixed Focus and Focusable. Focusable versions have set screws to lock both manual iris and focus rings in place. Lens Prescription Data is available for qualified optical designers.
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