LED LAMP CAPABLE OF FREELY CHANGING COLOR TEMPERATURE, AND LED LAMP COLOR TEMPERATURE CHANGING METHOD USING SAME

摘要

The present invention relates to an LED lamp capable of freely converting color temperature and a method for converting color temperature using the same. The LED lamp may include a single-color or white LED, a fixed filter, and a color temperature conversion filter. The LED lamp can implement illumination light having a desired color temperature and color rendering property by gradually and reversibly expanding and reducing an overlap region between the fixed filter and the color temperature conversion filter, thereby having high convenience and economic efficiency.