Real-time imaging contact gauge and visual feedback interactive apparatus including same

摘要

A real-time imaging contact gauge for indicating the distribution of contact pressure over a surface includes a transparent base panel, a pressure-transmitting member at one face of the transparent base panel for receiving the contact pressure to be indicated, a birefringent member sensitive to mechanical pressure located between the pressure-transmitting member and the transparent base panel, a plurality of spaced, parallel electro-luminescent layers carried by the transparent base panel for illuminating the birefringent layer, and a polarizer for polarizing the light transmitted to the birefringent layer to produce optical interference patterns corresponding to the contact presssure distribution applied to the pressure-transmitting member, which patterns are viewable through the opposite face of the transparent base panel.