Patent ID: 7857497
Filing Date: 2010-12-28
Classification: F21K,F21S,F21V,F21W,F21Y

Abstract:
1. An LED lighting fixture comprising: a set of LED optical units having different light distribution characteristics, respectively, and each of the LED optical units including two or more LED optical modules configured to emit light forming a corresponding light distribution characteristic, each LED optical module including an LED serving as a light source and at least one light distribution controlling lens located in an illumination direction of the LED light source, wherein the LED optical modules includes a first LED optical module mounted to a first LED optical unit, the first LED optical module configured to form a first light distribution characteristic, and the LED optical modules also includes a second LED optical module mounted to a second LED optical unit, the second LED optical module configured to form a second light distribution characteristic, wherein the first light distribution characteristic and the second light distribution characteristic are different from each other, and wherein each of the LED optical modules mounted to the same LED optical unit has the same light distribution characteristics with respect to each other and wherein the LED optical modules mounted to the different LED optical units have different light distribution characteristics with respect to each other.