| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluorescence sensor capable of precisely detecting a fluorescent component contained in an object without enlarging a device. SOLUTION: The fluorescence sensor 8 has a casing 10, and a light emitting element 12 for irradiating a bill 7 with light, an ultraviolet ray transmitting filter 15 for transmitting only an ultraviolet ray component of the light emitted from the light emitting element 12, and a fluorescence detecting light receiving element 16 for receiving fluorescence emitted from the surface of the bill 7 by the emission of the ultraviolet ray are housed in the casing 10. Further, a light quantity monitoring light receiving element 18 for receiving the light emitted form the light emitting element 12 and reflected by the ultraviolet ray transmitting filter 15 is arranged in the casing 10. A phosphor 20 for generating fluorescence by the light reflected by the filter 15 is arranged between the light receiving element 18 and the filter 15. COPYRIGHT: (C)2004,JPO&NCIPI
|
