Abstract: An adapter consists of a rigid V-shaped angle piece (7), one leg (8) of which is provided with a slit (9) through which the fastening strap of a mask is fed, while the other leg (10) is equipped with hooks (11) to attach it to the side parts of the mask, in such a way that the fastening point of the strap is offset towards the front of the mask--for use with protective masks or goggles.

Abstract: The coupling system 1 is composed of an elongated piece shaped, on one side to form a claw, the members (10a, 10b) of which are designed to grip the end of a side-piece of a pair of spectacles. On the other side, the coupling system bears a double hinge knuckle 12 which can receive a tenon 13 forming a pivot, which penetrates a through orifice 5 provided on the side of the front face 2 of the spectacles and is retained by its anchoring head 17. The central portion 18 of the coupling system, between the claw and the double knuckle, is of lesser thickness, and is thus elastic and deformable.

Abstract: A goggle including a unitary lens mountable about the head of a user is shown. A lens of the goggle is mounted in a frame. The lens has no nose opening and projects from near the forehead to the tip of the nose of the user. The frame of the goggle has a lower half which projects forwardly and has a nose opening in a horizontal plane to fit about the nose. Second or bottom lenses positioned in the lower half of the frame allow downward vision of the user.

Abstract: Sunglasses have a removable and replaceable transparent convex pane curved both horizontally and vertically. Moisture absorbing means comprising a foam absorber strip is removably attached to the frame. Adjustable, interchangeable temple members are provided for optimal fit and comfort.