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This paper presents an interactive laser scanning display (LSD) based on a microelectromechanical systems (MEMS) optical scanner that projects full-color images of lateral 720 pixels by two-dimensionally scanning a collimated laser beam. The scanner optics is also designed to function as a laser range finder (LRF) to measure the distance to the screen or an inserted object within arm’s reach of 20 cm to 60 cm. The combination of LSD and LRF constructs an interactive image display that could be remotecontrolled by the viewer’s hand gestures.

A MEMS-based interactive laser scanning display with a collocated laser range finder