LED Bulb Lamp Capable of Realizing Wide-Angle Luminescence

摘要

An LED (Light-Emitting Diode) bulb lamp realizing wide-angle luminescence includes LEDs, a heat sink and a lampshade. The heat sink is divided into a lower part which is connected with a lamp cap of a lighting fixture, and an upper part which takes a shape of a small-top big-bottom multi-surface prismoid. An included angle between each ridge surface of the prismoid and a vertical center line of the lighting fixture is θ, wherein 10°≦θ≦25°. The upper part and the lower part of the heat sink are communicated to each other. At least one LED is arranged on each ridge surface, and the upper part of the heat sink is covering in the lampshade. The LED bulb lamp enlarges light rays in a small-angle irradiation range to the most of region of a bulb, achieves an entire light distribution effect and satisfies requirements on characteristics of luminescence and heat dissipation efficiency.

主权项

1. An LED bulb lamp capable of realizing wide-angle luminescence, comprising: LEDs, a heat sink and a lampshade, wherein the heat sink is divided into two parts, wherein a lower part of the heat sink is connected with a lamp cap of a lighting fixture and an upper part of the heat sink takes a shape of a small-top big-bottom multi-surface prismoid; an included angle theta between each ridge surface of the prismoid and a vertical center line of the lighting fixture is greater than or equal to 10 degrees and less than or equal to 25 degrees; the upper part and the lower part of the heat sink are communicated to each other; at least one LED is arranged on each ridge surface; and the upper part of the heat sink is arranged in the lampshade in a covering manner.