Encoder strip with dimensional stability and ink resistance properties

摘要

An encoder strip with dimensional stability and ink resistance properties. The encoder strip has a length, width, surface, thickness, and one or more markings per unit of length. A coating having a thickness between about 2 microns and about 4 microns and is distributed substantially uniformly over the surface of the element. The coating is configured on the element as substantially translucent to one or more light wavelengths and is adapted to: (1) form a membrane to substantially prevent ink absorption into the element or adsorption to the surface of the element; and (2) provide dimensional stability to the element resulting from interaction of temperature and humidity.