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Filtering system for electromagnetic radiations

  • US 10,642,023 B2
  • Filed: 09/25/2015
  • Issued: 05/05/2020
  • Est. Priority Date: 09/25/2015
  • Status: Active Grant
First Claim
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1. An electromagnetic radiation filtering system, comprising:

  • an electromagnetic radiation source to provide electromagnetic radiation to a target zone;

    a filter chamber through which the electromagnetic radiation is to pass before arriving at the target zone;

    a filter chamber control system to selectively modify the contents of the filter chamber to modify the wavelengths of radiation that pass through the filter chamber; and

    a pump which is connected to the filter chamber and a filter material store, wherein the pump is controllable to either fill the filter chamber with filter material from the filter material store or to empty the contents of the filter chamber into the filter material store.

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