Engineered light distribution LED light bulbs

摘要

LED light bulbs especially suited for use in table lamps or floor lamps with lamp shades. The LED light bulbs include optics which provide more limited but more uniform illumination of the lamp shade and provide more uniform illumination through the top and bottom apertures of the lamp shade. The light bulbs comprise an electrical coupling base (e.g., Edison screw base) coupled via an insulating coupling piece to a tube. Metal Core Printed Circuit Boards on which LEDs with lenses are mounted are mechanically coupled to the tube.

主权项

1. An LED light bulb comprising at least a first LED and at least a first optical element optically coupled to said first LED and shaped to redistribute light of said at least first LED to cause said LED light bulb to produce a light distribution that has a first local maximum at a zenith angle above 25° and a second local maximum at a zenith angle below 150° and includes less than 50% of a total luminous flux in said light distribution between said first local maximum and said second local maximum.