Glass substrate, line scanning optical sensors, lighting strips
|Functions with scratches and surface wear||Moving liquids or solid contaminants may cause false touches or non-function until completely removed|
|Touch activated by bare finger, gloved finger, or stylus||Requires a bezel design to house the edge positioned camera system|
|Scalable||System thickness is typically 3.5 mm in addition to the thickness of the glass|
|Transmission is typically > 90 %||Touch occurs slightly above the actual surface|
|Limited to 2 resolvable points with 2 cameras; 3 or more resolvable points with 4 cameras|
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