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MULTI-BANDPASS FILTER FOR PROJECTION ARRANGEMENTS

  • US 20070030563A1
  • Filed: 06/06/2006
  • Published: 02/08/2007
  • Est. Priority Date: 06/07/2005
  • Status: Abandoned Application
First Claim
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1. An optical filter for manipulating the spectrum of a light source, whereby the optical filter is comprised of a transparent substrate and a first layer system applied to only one side, preferably an interference layer system, characterized in that the substrate and the first layer system form a combined UV and IR filter (UV-IR filter) such that radiation portions both below a wavelength of 420 nm, particularly in the UV range, and above a wavelength of 690 nm, particularly in the IR range, are not fully transmitted by the first layer system.

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