LED LIGHT ASSEMBLY

摘要

A light source utilizes a parabolic reflector (10, 10a) to collimate light emitted at greater than a predetermined angle (alpha) relative to the optical axis Ao of an LED (42) arranged at the focus of the reflector. An optional collimating lens (30) is arranged to collimate light emitted at less than the predetermined angle (alpha). Both variations provide light in the form of a substantially collimated beam. The parabolic reflector (10, 10a) is preferably extended along its focal point to form a linear parabolic section having a linear focal axis (17). A linear array of LEDs (42) is arranged such that the linear focal axis passes through the area of light emission of each LED (42). The linear parabolic section may be provided with parabolic dish ends (12). Alternatively, the ends of the parabolic section may be left open for increased wide angle visibility.