Abstract: A retroreflector assembly is assembled by adhering a retroreflector to a mounting member along a single flat back surface of the retroreflector and a flat surface of the mounting member. The retroreflector does not otherwise contact the mounting member. The retroreflector includes three plates having optically flat reflective front surfaces disposed at right angles to each other, wherein each of the plates further has a back surface disposed on an opposite side of the plate from the optically flat reflective front surface. The mounting member comprises a bonding portion and a base portion connected to the bonding portion, wherein the bonding portion is adhered to the back surface of one of the three plates, and wherein the bonding portion comprises a same material as the one of the three plates to which the bonding portion is adhered.

Abstract: A device for preparing a skate blade for use polishes a bottom surface of a skate blade to improve the glidability of the skate. The device includes a polishing surface for polishing the skate blade, blade guides having an opening therebetween for supporting the skate blade while the skate blade is being polished by the polishing surface, and a frame for holding the polishing surface and the blade guides. To polish a skate blade, a polishing compound is applied to the polishing surface, the skate blade is placed in the opening of the blade guides such that the bottom surface of the skate blade contacts the polishing surface, and the skate blade is slid against the polishing surface, while applying a downward force to press the skate blade against the polishing surface, until the bottom surface of the skate obtains a desired polished state.

Abstract: A retroreflector assembly is assembled by adhering a retroreflector to a mounting member along a single flat back surface of the retroreflector and a flat surface of the mounting member. The retroreflector does not otherwise contact the mounting member. The retroreflector includes three plates having optically flat reflective front surfaces disposed at right angles to each other, wherein each of the plates further has a back surface disposed on an opposite side of the plate from the optically flat reflective front surface. The mounting member comprises a bonding portion and a base portion connected to the bonding portion, wherein the bonding portion is adhered to the back surface of one of the three plates, and wherein the bonding portion comprises a same material as the one of the three plates to which the bonding portion is adhered.