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Ultra violet detector/indicator

  • US 7,479,641 B2
  • Filed: 09/12/2006
  • Issued: 01/20/2009
  • Est. Priority Date: 04/28/2003
  • Status: Expired due to Fees
First Claim
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1. In combination,an enclosure of a fluid processing apparatus;

  • an ultraviolet lamp installed in the enclosure for sterilization; and

    an ultraviolet detector/indicator installed at an external wall of the enclosure, wherein the ultraviolet detector/indicator comprises;

    a light receiving end to receive ultraviolet light from the ultraviolet lamp,a light emitting end disposed outside the enclosure,a light guide transmitting light between the two ends,material to transfer ultraviolet energy into visible light between the light receiving end and the light emitting end, the material adjusting a spectrum, anda colorimetric scale which is printed with various color shades disposed adjacent to at least one of the ends,whereby ultraviolet light inside the enclosure is indicated by visible light at the light emitting end.

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