METHOD AND APPARATUS FOR REPLICATING LIGHT SHAPING SURFACE STRUCTURES ON A RIGID SUBSTRATE

摘要

A method and apparatus (20) are provided for replicating a light shaping surface structure on a laminated surface of a relatively rigid substrate (ST ). More specifically, after the substrate (ST) is mounted on a table (24) and a layer of epoxy is deposited between the substrate and a submaster (SU) to produce a layered structure, the layered structure is automatically compress ed in a nip formed between the table (24) and an outer surface of a rotating impression roller (26), thereby replicating the surface structure in the epo xy layer. The epoxy is then cured, and the submaster (SU) is separated from the substrate (ST) to leave a laminated structure having the light shaping surfa ce structure on a surface thereof. Preferably, the submaster is wrapped around the impression roller, and the impression roller (26) is rotated while the table (24) is reciprocated linearly.