Eastman Kodak Company
Low specular reflectance surface

Abstract:

A low-specular-reflectance surface, includes a coating on a surface, wherein the coating includes a plurality of substantially spherical particles having a multimodal particle size distribution, wherein the particles protrude from a top surface of the coating to provide substantially spherical caps. The multimodal particle size distribution has two or more modes, each mode having a peak defining an associated mode particle size, wherein the distribution function includes a first mode having a first peak corresponding to a first particle size and a second mode having a second peak corresponding to a second particle size. A ratio of the second particle size to the first particle size is between 1.7-4.0. A smallest of the mode particle sizes is greater than or equal to 1.0 microns, and a largest of the mode particle sizes is greater than or equal to 3.0 microns.