| 摘要 |
A coin discriminating device has light emitting means (1) for projecting light (2) onto a surface of a coin (3), optical sensor means (4) for detecting light reflected from the coin, and processig means (5) for determining a type of the coin by comparing coin data obtained from the optical sensor means with reference data related to different types of coins. The light emitting means (1) is arranged to emit monochromatic light in a visible, infrared or ultraviolet wavelength range. The optical sensor means (4) and the processing means (5) are arranged to produce spectral charateristics data for light reflected from the coin surface and to compare the spectral characteristics data with spectral coin reference data for determining the type of the coin (3). |
