LIGHT PIPE ARRAY LENS, OPTICAL FINGER NAVIGATION DEVICE WITH THE LENS AND METHOD FOR MAKING THE DEVICE

摘要

An optical finger navigation device and method for making the device uses a light pipe array lens, which includes an array of light pipes formed in a monolithic block of material. The light pipe array lens is configured to function similarly to a fiber bundle lens to transmit light through the lens using the light pipes in the monolithic block of material.