anti-glare spectacles with glasses mounted via circular fitting - have radial projections fitting in U=shaped slot and adjustable link

摘要

The pair of spectacles for use by a motorist is intended to offer protection against blinding by the glare of the headlights of an oncoming vehicle. The protection is provided by a single filter at a distance from the face of the driver. The spectacles are made with two circular fittings. The cross-section of the fittings are U-shaped and fit around the edges of the glasses. Each glass can turn in the fitting. The glasses are made with radial projections, which fit into the slot of the fitting. The glasses are also linked by a bar, whose length can be varied.