Patent ID: 9228718
Filing Date: 2016-01-05
CPC Classification: F21K,F21V,F21Y

Claim Text:
1. An LED light bulb, comprising: an LED module including a substrate and an ultraviolet to violet light-emitting LED chip mounted on a surface of the substrate; a base part on which the LED module is disposed; a globe including an attaching part attached on the base part to cover the LED module, and having a shape in which a cross section in a direction in parallel to the surface of the substrate is circular; a phosphor screen, provided on an inner surface of the globe separately from the LED chip, emitting white light by absorbing ultraviolet to violet light emitted from the LED chip; a lighting circuit provided in the base part and lighting the LED chip; and a bayonet cap electrically connected to the lighting circuit, wherein the globe has a dome shape in which a diameter Dl at the attaching part is smaller than a diameter D