| 摘要 |
PURPOSE:To miniaturize a device configuration, by installing a plurality of exciting light sources, which radiates exciting lights, being different in wavelength from each other, on an object to be detected being conveyed, and a means for receiving light, emitted from the object to be detected as a result of said irradiation, and performing a phoelectric conversion of it. CONSTITUTION:A body 20 for a detector for a luminous material is located in a position corresponding to a conveyance path 10. The detector 20 consists of an exciting light source for issuing an exciting light with a wavelength of 2,537Angstrom , such as a mercury discharge lamp 21, a transmitting filter 22 for transmitting a 2,537Angstrom light, an exciting light source for emitting exciting light with a wavelength of 3,650Angstrom , such as a mercury discharge lamp 23, a transmitting filter 24 for transmitting a 3,650Angstrom light, a detecting window 25, and a photoelectric converter 26. A device is constituted such that the mercury discharge lamps 21 and 23, which emit the exciting lights being different in a wavelength as described above, are collected in a spot, and the light, emitted from a luminous material as a result of the radiation with the exciting light from the lamps, can be both received by the photoelectric converter 26, which results in miniaturizing a device configuration. |
