CGH for freeform surfaces

Recent advancements in optical manufacturing techniques have made it possible to create complex optical components with exceptional precision. However, optical metrology often remains a limiting factor in the fabrication of these intricate surfaces, such as freeform surfaces, off axis parabola, cylindrical surfaces as existing methods for qualification and feedback are frequently not precise, flexible or capable enough. A computer-generated hologram (CGH) addresses many of these surface and optical system testing challenges, making the qualification of complex optical surfaces feasible while preserving precision, resolution, speed, and other advantages. MG-Optics will make the custom CGH design and fabrication for your freeform optics. The test accuracy achieves 1/100λ.  Complex Surface Optical Metrology Enabled by Custom CGH, CGH nulls convert a collimated wavefront to a freeform surface to match the freeform optics design Ray Diagram Freeform with CGH show as below:…