1. A color wheel for use in an automated luminaire, the color wheel comprising:a transparent substrate; and
a patterned dichroic filter coating on the transparent substrate, the pattern including:
a first region, comprising unconnected coated dots, most of the coated dots having a substantially equal first size, a density of the coated dots varying from a lower density at a first end of the first region to a higher density at a second end of the first region; and
a second region, comprising a contiguous dichroic filter coating that includes unconnected uncoated holes, most of the uncoated holes having a substantially equal second size, a density of the uncoated holes varying from a higher density at a first end of the second region to a lower density at a second end of the second region, the first end of the second region abutting the second end of the first region.