Method for forming constant radius convex mirror assembly
AssigneeRosco, Inc.
InventorBenjamin Englander
Life of this patent
Estimating the term…
Abstract
A safety mirror lens assembly includes a mirror unit with a mirror lens that has a three-dimensional convex/ellipsoid reflective surface which terminates in an oval or round or other shape peripheral edge. The reflective surface is such that a notional line traced to coincides with the major axis has a first constant radius of curvature and a second notional line traced to coincide with the minor axis has a second constant radius of curvature. The first radius of curvature is substantially greater than the second radius of curvature. The mirror lens is usable for a cross-over mirror for a vehicle, for example, a school bus.
Claims6
A method of fabricating a mirror unit, comprising the steps of:
- producing by injection molding, a mirror lens having a reflective outer surface and a rear surface, the mirror lens comprising a mirror lens body which terminates in an oval shape peripheral edge that surrounds the reflective surface, the mirror lens body being a substantially three-dimensional, convex body having a major axis of a first length and a minor axis which intersects the major axis and has a second length, the major axis and the minor axis being defined in a plane that contains the oval shape peripheral edge, the outer mirror surface having a first constant radius of curvature along a first line thereof which coincides with the major axis and having a second, constant radius of curvature on the outer surface thereof along a second line which coincides with the minor axis of the lens, said first constant radius of curvature being substantially larger than said second constant radius of curvature;
- and
- providing a mirror back and coupling the mirror back to the mirror lens body;
- and
- providing a coupling structure and attaching the coupling structure to the mirror back.
A method of fabricating a mirror unit comprising the step of:
- producing by injection molding, a mirror lens having a reflective outer surface and a rear surface, the mirror lens comprising a mirror lens body which terminates in a circular peripheral edge that surrounds the reflective surface, the mirror lens body being a substantially three-dimensional, spherical body, the outer mirror surface having a constant radius of curvature along any trace line thereof which begins at a first point on the peripheral edge, terminates on a second point on the peripheral edge and lies in a plane that also contains a vertical axis around which the spherical mirror lens body is symmetrically arranged, each trace line having the same constant radius of curvature;
- and
- attaching to the mirror lens a mirror assembly structure including a mirror back adjacent the continuous peripheral edge of the mirror lens;
- a fastening structure for fastening the mirror back to the mirror lens;
- and a coupling structure attached to the mirror back, the coupling structure including hardware for engaging a mirror pole which serves to attach the mirror unit to a vehicle body in a manner which allows the orientation of the mirror lens to be adjusted.
A method of fabricating a mirror unit comprising the steps of:
- producing by injection molding, a mirror lens having a reflective outer surface and a rear surface, the mirror lens comprising a mirror lens body which terminates in a peripheral edge that surrounds the reflective surface, the mirror lens body having a substantially three-dimensional, spherical body, the outer mirror surface having a constant radius of curvature along any straight, unidirectional trace line thereof, which trace line begins at a first point on the peripheral edge and terminates on a opposed second points on the peripheral edge;
- and
- attaching to the mirror lens a mirror assembly structure including a mirror back adjacent the peripheral edge of the mirror lens;
- a fastening structure for fastening the mirror back to the mirror lens;
- and a coupling structure attached to the mirror back, the coupling structure including hardware for engaging a mirror pole which serves to attach the mirror unit to a vehicle body in a manner which allows the orientation of the mirror lens to be adjusted.
Dependencies are inferred from the claim text.