×

Isotropic collimation devices and related methods

  • US 7,391,059 B2
  • Filed: 03/07/2006
  • Issued: 06/24/2008
  • Est. Priority Date: 10/17/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. A light-emitting device comprising:

  • an interface through which emitted light passes therethrough, the interface having a dielectric function that varies spatially according to a pattern, the pattern arranged to provide light emission that has a substantially isotropic emission pattern and is more collimated than a Lambertian distribution of light, wherein the substantially isotropic emission pattern is such that an integrated intensity varies by less than 20% over all azimuthal angles, wherein the integrated intensity is a summed intensity over all polar collection angles.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×