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OPTICAL ELEMENT, SPECTROSCOPIC ELEMENT, OPTICAL UNIT AND OPTICAL DEVICE

  • US 20110124966A1
  • Filed: 01/26/2011
  • Published: 05/26/2011
  • Est. Priority Date: 07/30/2008
  • Status: Abandoned Application
First Claim
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1. An optical element comprising:

  • a multilayer film which has a first transmittance characteristic in a first wavelength region, and has a second transmittance characteristic in a second wavelength region existing at the side where a wavelength is longer than that of the first wavelength region,wherein the multilayer film has a transmittance characteristic where a first peak with a maximum transmittance exists in the second wavelength region.

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