Eraser for electronic presentation board, handle pivots so that eraser remains flat on board

摘要

An eraser for an electronic presentation board includes an eraser portion 191 and a handle182. The handle is pivotally connected to the eraser portion so that the eraser portion lies flat against the board regardless of the angle of the handle. This ensures that the width strip that is erased is constant. The handle also houses a transmitter 190 that enables the position of the eraser to be determined by the presentation board system so that the display can be appropriately updated.