Three main factors, dip angle, thickness, and the separation between pillar and driver’s eye, directly impact the invisible effect and mechanical strength of support frame. Some solutions to solve problems while using a camouflaging technology for vehicles were suggested. One typical tricky difficulty for the design of an invisible pillar is how to let drivers with different stature to achieve the same stealth effect. One solution is to employ a triangular prism to change the image location from the light blocked by A-pillar so that drivers of various heights can get the same invisibility rate. Hopefully, the trickiest problem for designing an invisible A-pillar can be solved with ease.

stealth technology, camouflage technology, automobile industry, A-pillar of vehicle, quadrangular prism, quadrilateral prism