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Dielectric multilayer filter

  • US 20070127126A1
  • Filed: 10/03/2006
  • Published: 06/07/2007
  • Est. Priority Date: 12/07/2005
  • Status: Abandoned Application
First Claim
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1. A dielectric multilayer filter comprising:

  • a transparent substrate;

    a first dielectric multilayer film having a predetermined reflection band formed on one surface of said transparent substrate; and

    a second dielectric multilayer film having a predetermined reflection band formed on the other surface of said transparent substrate, wherein the width of the reflection band of said first dielectric multilayer film is set narrower than the width of the reflection band of said second dielectric multilayer film, and the shorter-wavelength-side edge of the reflection band of said second dielectric multilayer film is set between the shorter-wavelength-side edge and the longer-wavelength-side edge of the reflection band of said first dielectric multilayer film.

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