Reflector with focused output

摘要

A reflector with focused output is disclosed. The reflector comprises a reference parabolic portion and a plurality of non-reference parabolic portions. A focal length of the plurality of non-reference parabolic portions is determined from a focal length of the reference parabolic portion. In one embodiment, the focal length of the plurality of non-reference parabolic portions is a perpendicularly projected distance from a focus of the reference parabolic portion onto a central axis of the plurality of non-reference parabolic portions. In one embodiment, the focal lengths of the reference parabolic portion and the plurality of non-reference parabolic portions are scaled by a constant. A method of designing a reflector and an obstruction light that uses the reflector is also disclosed.

主权项

1. A reflector comprising a reflective surface; said reflective surface having a shape defined by a plurality of parabolic portions juxtaposing each other; each said plurality of parabolic portions being a parabolic curve determined by a center point, a focus, a focal length which is a distance between said center point and said focus and a central axis which is a line joining said center point and said focus; and said plurality of parabolic portions further comprising a reference parabolic portion and a plurality of non-reference parabolic portions,
wherein said plurality of said center points are along a reference line which is not a straight line and said reference line and said foci of said plurality of parabolic portions lie on a reference plane; wherein each said focus of said plurality of non-reference parabolic portions is derived from said focus of said reference parabolic portion; wherein electro-magnetic wave generated from any said focus of said plurality parabolic portions is reflected by said reflective surface at a direction parallel to said reference plane.