LED lamp with high color rendering index

  • US 9,052,067 B2
  • Filed: 12/22/2010
  • Issued: 06/09/2015
  • Est. Priority Date: 12/22/2010
  • Status: Active Grant
First Claim
Patent Images

1. An LED lamp sized and shaped as a replacement for an omnidirectional standard incandescent bulb, the LED lamp comprising:

  • an LED assembly further comprising at least first and second LEDs in LED device packages operable to emit light of at least two different colors;

    a support between the LED assembly and a power supply; and

    a domed enclosure comprising a color mixing section and a substantially transparent section closer to the power supply, the substantially transparent section having a higher transmittance-to-reflectance ratio than most of the domed enclosure;

    wherein the domed enclosure is also configured so that light from the LED assembly, when the LEDs are energized, passes through the domed enclosure without wavelength conversion outside of the LED device packages and is emitted in a substantially omnidirectional pattern with a color rendering index (CRI) of at least 90.

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