OPTICAL SEMICONDUCTOR ILLUMINATING APPARATUS

摘要

The present invention relates to an optical semiconductor lighting device that comprises: a housing that includes a socket base and a heat sink prepared on the top of the socket base; a substrate that is prepared on the top of the housing, contains a light-emitting diode (hereinafter referred to as LED), and has a circuit pattern connected to the LED and an input/output terminal; a rectification part that is arranged on the substrate and rectifies an AC voltage; an LED light-emitting part that is arranged on the substrate and includes first through m^th light-emitting groups (m is a positive integer equal to or greater than two) equipped with one or more LEDs that are sequentially driven according to the voltage level of a rectified voltage outputted from the rectification part; and an LED driver IC that is arranged on the substrate and sequentially drives the first through m^th light-emitting groups. The input/output terminal of the substrate is combined with the housing in a detachable manner. The input/output terminal, rectification part, LED driver IC, and LED light-emitting part are independent modules and sequentially arranged on the substrate. The optical semiconductor lighting device can handle power consumption in accordance with a user request or a usage environment, and enables a user to adjust light flux and light distribution freely.