Photoelectric pinfall detection system (US Patent 5902188)
Patent number: 5902188 Granted: 1999-05-11 Filed: 1997-04-17 Inventors: Vittorio Meniconi (Oberdurnten, CH) Assignees: BMS Bowling Marketing Services AG (Ruti, CH)
Abstract
A bowling alley is provided with a photoelectric pinfall detection system which includes a pinfall detection device by means of which it can be recognized whether or not a fallen pin is lying in the end region of the bowling lane or in one of the gutters. The pinfall detection device comprises a light sensitive sensor array which detects any radiation
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