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Type II broadband or polychromatic LEDs

  • US 8,148,742 B2
  • Filed: 03/29/2010
  • Issued: 04/03/2012
  • Est. Priority Date: 12/09/2004
  • Status: Expired due to Fees
First Claim
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1. An LED comprising two or more Type II interfaces wherein at least two of said two or more Type II interfaces differ in transition energy by at least 5%, wherein a first Type II interface of said two or more Type II interfaces has a first transition energy corresponding to yellow, green, blue or violet wavelength visible light, and wherein a second Type II interface of said two or more Type II interfaces has a second transition energy corresponding to red, orange or yellow wavelength visible light.

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