Apodization filters seem to be used to improve bokeh. They also seem to be able to improve sharpness and increase depth of field. But they also reduce light transmission.
While thinking about how an adjustable apodization filter could be made, I thought about translucent aperture blades. Could they have benefits similar to apodization filters (improving bokeh)? What else might be expected to happen if a lens had translucent aperture blades?