A novel inverted telephoto four mirror zoom system with large field of view (FOV) was designed over a wide spectral bandwidth. The initial configuration of the zoom system was obtained by applying the aberration equations under certain constraints. Then, a method was presented to correlate the aspheric coefficients with the aberrations of this system. By using this method, the required image quality could be achieved after optimization using the ZEMAX® Optical Design Code. Besides good image quality, another benefits of using this system is the potential for using cheap optics.
geometric optical design aberration compensation lens system design reflective zoom
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