High-uniformity panoramic infrared optical system design based on segment-wise dynamic curvature and gradient descent optimization

A new, to our knowledge, design method for panoramic reflective infrared systems is proposed using dynamic curvature compensation and gradient descent to improve image irradiance uniformity. By combining ray tracing and multi-parameter analysis, the reflective surface is replaced with segmented arcs, and the design is iteratively expanded. This concise and effective method achieves 99.19% irradiance uniformity with accuracy five times higher than traditional methods. The design time is only 0.17 s, and one-step forming eliminates the need for secondary optimization, greatly simplifying the system design process. This provides new ideas for high-resolution, wide-field infrared imaging system design.