Patent ID: 8328392
Filing Date: 2012-12-11
Classification: F21K,F21S,F21V,F21Y

Abstract:
1. An LED illumination lamp, comprising: a plurality of LED illumination units grouped together and arranged in a matrix on a substrate, each LED illumination unit comprising: a plurality of LEDs mounted on the substrate and arranged in rows and columns to form an LED array, the LED array having a center and a symmetrical axis across the center, the LEDs being arranged symmetrically on the substrate with respect to the symmetrical axis; and a corresponding number of plate-type light reflectors mounted on the substrate, each light reflector being paired with an LED and disposed immediately adjacent to the LED, each light reflector having a light reflecting surface facing the LED, the light reflectors each defining a mounting angle relative to the symmetrical axis, the mounting angle being an angle from 0 to 90 degrees; wherein the LEDs are arranged in N rows and M columns on the substrate and the light reflectors are also arranged in N rows and M columns on the substrate wherein N and M are natural number and greater than 1, the mounting angles of the light reflectors relative to the symmetrical axis in each row of light reflectors are varied in such a manner that a right light reflector in each row of light reflectors is deflected with a first predetermined angle relative to a neighboring left light reflector in the same row of light reflectors, and the mounting angles of the light reflectors relative to the symmetrical axis in each column of light reflectors are varied in such a manner that a rear light reflector in each column of light reflectors is deflected with a second predetermined angle relative to a neighboring front light reflector in the same column of light reflectors; wherein a leftmost light reflector in a rear row of light reflectors is deflected with the first predetermined angle relative to a rightmost light reflector in a neighboring front row of light reflectors; and wherein every two neighboring LED illumination units are arranged in a mirror symmetry relationship.