Patent ID: 7997758
Filing Date: 2011-08-16
Classification: F21K,F21V,Y10S

Abstract:
1. A light-guiding module for being fixed on an LED module to guide light emitted by a plurality of LEDs of the LED module, comprising: a frame for being placed on the LED module, defining a void in a bottom portion thereof for receiving the LEDs of the LED module and a recess in an upper portion thereof and in communication with the void, the recess being shaped to have a narrow top mouth and a wide bottom portion, the recess having two undercuts at two sides of the wide bottom portion of the recess and slanting side walls in the recess from the narrow top mouth to the wide bottom portion so that the recess has a dovetailed profile; and a plurality of light guiding units each comprising a base having two flanges extending outwardly and laterally from two opposite lateral sides thereof; wherein the flanges of the base of each of the light guiding units are respectively received in the undercuts of the frame and movable along the recess to adjust a position of each of the light guiding units in the frame until each of the light guiding units faces a corresponding LED for reflecting and guiding light generated by the corresponding LED in a predetermined manner wherein each of the light guiding units comprises four inclined sidewalls extending from the base and interconnected to each other to define a rectangular upper opening by upper ends thereof, the base defining a lower opening in communication with the upper opening; and wherein the lower opening is smaller than the upper opening and in communication with the void of the frame.