Patent ID: 7172301

Claim:
An optical reflecting mirror comprising: a reflective surface defined by a predetermined section of a larger aspherical surface; said reflective surface comprising a nonuniform curvature; said reflective surface being symmetric about an axis of rotation, said axis of rotation being spaced from and not contacting said mirror, thereby said mirror further comprising: a plurality of axes including first, second and third axes, each of said axes being mutually perpendicular; said first axis extending along a reflecting surface of said mirror, said second axis extending tangential to the reflecting surface of said mirror and said third axis extending normal to the reflecting surface of said mirror; said first axis being oriented at an acute angle to said axis of rotation; a segment of an outer edge of said minor includes a greater curvature than a remaining outer edge of said mirror; and said mirror further comprising a rib extending along said outer edge of said mirror along said segment of greater curvature of said reflective surface, said rib extending in the direction of said third axis.