STRUCTURE FOR ARRANGING LEDS IN PLANAR LAMP USING EQUILATERAL PRINCIPLE

摘要

PURPOSE: A light-source arrangement structure of the flat board illumination of using the equivariance principles is provided to reduce light loss of an LED and improve optical power and reduce number of LED based on the same areas, thereby reducing the cost. CONSTITUTION: An LED flat board illumination arranges LEDs(12,12a,12b,12c) in the circuit board of the flat board form. The distance between an LED and an LED which accomplishes the side is materially similar the distance between an LED and an LED accomplishing one dissimilar side. Neighboring three LEDs altogether keep same distance. The minimum unit of arrangement is the triangle structure form.