(under subclass 41) Subject matter, wherein the mounting is adjustable to permit vertical movement of multifocal lenses to selectively position the near and distance vision portions in the line of vision.
(1) Note. The adjustment of the lenses may be made by changing the position of the nose pads on their supporting arms or by varying the distance between the pads by moving rotatable portions of the bridge to adjusted positions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
54, for spectacles whose lenses are inverted by rotation.
