Optical touch sensor for use in glass ceramic cooking plates, comprises surface mount device-infrared diode as transmitter unit, and surface mount device-photoelectric transistor as receiver unit, which forms reflective sensor

摘要

The optical touch sensor comprises a surface mount device-infrared diode as a transmitter unit (1), and a surface mount device-photoelectric transistor as a receiver unit (2), which forms a reflective sensor. The signals of the photocells are pulsed. The center between the transmitter unit and the receiver unit is a display unit (3). The display unit comprises a single-or multi-color surface mount device-light emitting diodes.