A cordless shade assembly having a primary panel with a face surface and a back surface. substrate are controlled by correcting exposure dose and partial coherence at different spatial locations. Alternately, a fresnel lens or diffractive lens may be placed at a predetermined distance from the mold. The catalytic substrate and filtering substrate provide, in certain embodiments, improvements in removing pollutants from an exhaust gas. A hybrid magnetic trigger, including a permanent magnet and an electromagnet, is preferably used for the magnetic trigger, as hybrid magnetic triggers are easy to control, and produce larger magnetic gradients than permanent magnets or electromagnets alone.