Abstract: A method is provided for producing relief images having improved image fidelity and resolution. The method comprises positioning an image bearing negative transparency closely adjacent and substantially parallel to a layer of a photocurable material; positioning on the other side of the negative from the photocurable material and in substantially parallel relationship thereto at least one louver having a plurality of open cells, each cell extending through the louver along an axis perpendicular to the negative and having reflective side surfaces contoured to reflect and redirect rays of radiant energy incident thereon to a direction more normal to the negative surface; and passing radiant energy which is capable of curing the photocurable material through the louver and the negative and onto and through the photocurable material for a time sufficient to form a latent relief image in the photocurable material.

Abstract: This invention is directed to a method for developing printing plates by stripping away uncured material using a carefully controlled gas stream. An optional supplemental blotting system is provided.

Abstract: Apparatus for developing a relief letterpress plate carrying a liquid polymer, comprising an air knife positioned to move over a stationary platen carrying the plate and blowing the polymer from the plate into a sink. Alternately the air knife is stationary and the platen is positioned to move under it.

Abstract: This invention is directed to an apparatus for developing printing plates by stripping away uncured material using a carefully controlled gas stream. An optional supplemental blotting system is provided.