Patent ID: 7831178

Claim:
A method for electrographic printing of one or more optical elements upon a receiver, said printing comprising the steps of: a. depositing a first layer of toner, having first predetermined sized marking particles to form a first layer of a multi-dimensional shape; b. depositing a second layer of toner, having second, predetermined sized marking particles of a larger size than the first predetermined sized marking particles to form a second layer of a multi-dimensional shape, relative to the first layer of the multi-dimensional shape; and c. repeating steps a and b as required to form a pattern of the first predetermined sized marking particles and second predetermined sized marking particles having a packing of marking particles controlled to yield, after fusing, a final optical element having a desired multi-dimensional shape through which light can pass to and from the receiver, wherein the light that passes through the optical element is directed according to the multi-dimensional shape of the optical element and an index of refraction of the fused marking particles.