Microlens array

摘要

A microlens array has a plurality of microlenses supportedly arranged on a first surface of a transparent medium. Having a first surface and a second surface oppostite said first surface at least two optical features are formed on said first surface. Fiducial marks are formed on the second surface by a beam of collimated light directed onto the optical features on the first surface and focused onto the second surface. Fiducial marks enable precise alignment of the microlenses in the microlens array.