Foldable vision aid, e.g. reading glasses, sunglasses and similar, to be secured on cap peak, or hat rim with bow to be clamped to peak or hat rim

摘要

Spectacles frame to be secured on any head cover comprises position adjustable bows, that can be clamped to head cover peak and are foldable upwards towards peak. Preferably, there are two bows held by own stability (spring mechanism), or by toothing. Bows can be hollow on underside with toothing for retaining spectacles frame, whose structure is specified.