Unitary molded lens filter for touch screen interface

An integral display lens filter for an associated process machine adapted to display process information reviewable by an operator, said lens comprising:

• a front cover captivating a bezel against an internal lens retainer for securing an integral and substantially transparent rear lens filter and lens to the machine in an operative configuration to display process information through said lens filter and receive operator input through said lens, so said lens filter and said lens are held in place relative to the machine and wherein said bezel is formed simultaneously with the formation of said rear lens filter forming a seamless lens filter shield and wherein said bezel forms a mechanical lock to the machine that provides a liquid tight seal;
• an integral reinforcing edge formed about the periphery of the bezel for diffusing a touch force when the touch force is applied to said lens or said rear lens filter;
• wherein said reinforcing edge, said bezel, said lens and said internal lens retainer form a housing adapted to protectively captivate a plurality of opposing emitters and receivers disposed around the periphery of said lens, said emitter and receivers forming a grid over said rear lens;
• a display disposed behind and adjacent to said lens and adapted to display process information behind said grid;
• and
• a controller adapted to interpret interruptions in said grid and providing input coordinates for said interruption;
• wherein said front cover is secured to the machine to captivate said lens against the machine to protect said display.