Patent ID: 8348522
Filing Date: 2013-01-08
Classification: G02B,H05K

Abstract:
1. An electro-optical module for communicating optical information between stacked printed wiring boards (PWBs), the module comprising: a non-PWB optically transmittive substrate, the substrate not being part of a PWB building process; a lens disposed on a first side of the substrate, over a non-viaed portion of substrate; at least one of an optical emitter and optical receiver disposed on a second side of the substrate, over a non-viaed portion of the substrate, and substantially in axis with the lens; and electrically conductive pads disposed on the second side of the substrate, off-axis from the lens, allowing the substrate to be mechanically and electrically connected to a PWB of a stacked set of PWBs, thereby enabling optical communication between the stacked PWBs.