Abstract: A solid-state light emitting diode (LED) lighting device is disclosed for use in general lighting. In the preferred embodiment, the LED lighting device comprises a heat sink having at least one opening, an output globe having at least one opening, and at least one ventilation channel. This channel helps to remove heat from the LED lighting device. An active cooling device is further installed inside the channel for very efficient heat removal. As a result, even at high luminous output, the LED lighting device is kept in a relatively small form factor. In some preferred embodiments, remote wavelength conversion luminescent phosphor particles or color mixing are utilized to achieve warm white lighting with high efficacy and high color rendering index (CRI). The LED lighting device has high luminous output, glare-free illumination, omni-directional distribution, and good color reproduction.

Abstract: A solid-state light emitting diode (LED) lighting device is disclosed for use in general lighting. In the preferred embodiment, the LED lighting device comprises a heat sink, a light dome, a light divider, a light distribution plate, and an output globe. A plurality of diffusively reflective compartments are formed inside the output globe for effective light scrambling. The light distribution plate, together with a shaped heat sink and a substantially transparent matching output globe, further enhances omni-directional lighting distribution and luminous efficacy. In some preferred embodiments, color mixing or remote wavelength conversion luminescent phosphor particles are utilized for improved color reproduction. The LED lighting device has high luminous efficacy, indirect glare-free surface illumination, omni-directional distribution, and good color reproduction.