Conceptual

Compact Relay Lens Design and Optimization for Military Imaging Systems

A relay lens is a lens group that relays a finite object to a distant image plane at unit or other magnification. This concept covers designing and optimizing such a system in optical-design software using global (Hammer) optimization to meet compact weapon-sight targets - roughly 9.5 mm effective focal length, 20 mm total track and 3 mm aperture - while minimizing Seidel aberrations and maximizing the modulation transfer function, verified with spot diagrams, point-spread function and field-curvature and distortion analysis.