| 摘要 |
A light source, a convex mirror and an optical sensor are disposed within a housing which is transparent to the range of wavelengths from the light source and of a low distortion scratch-resistant material. A game board is used with retro-reflective elements, such as moveable playing markers or game tokens, cards or regions affixed to and integrated into the game board. A data store stores the locations of the reflective elements and other game-related data, such as data needed to measure a player's score or position in a game or data to provide guided play. The convex mirror is disposed inside the housing such that light reflects from the light source, off the convex mirror, through the housing, and onto the game board.
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