4,974,954 DATED DECEMBER 4, 1990

SPECTACLES WITH SWING ARM REAR VISION ELEMENTS


The purpose of this invention is to provide an additional method by which mirrors can be rotated into a position for extended and retrovision. The present invention is a pair of rear vision spectacles with temple mounted swing arm rear vision members which are rotatable in one direction to position rear viewing surfaces at operative positions forward of the spectacles' eyepiece and are rotatable in the opposite direction to position the rear viewing surfaces at stored positions adjacent to the outer surfaces of the temples. One benefit of the invention is that it can be readily and economically applied to existing spectacles. Another benefit is that the rear vision members can be mounted on an existing pair of spectacles without changes to the spectacles' eyepiece. Another benefit, in addition to the foregoing benefits, is that the appearance of spectacles which embody the invention is conventional when the rear vision members are at their stored positions. Still yet another benefit is that the spectacles can be stored in conventional eyeglass cases.

One feature of the invention is that the rear viewing surfaces can be positioned far ahead of the spectacles' eyepiece. This feature increases the rear field of vision and reduces eye rotation when viewing rearwardly. Another feature, in addition to the foregoing feature, is that the angular and lateral positions of the rear viewing surfaces can be independently adjusted at their operative positions. The swing arms are thin narrow symmetrically opposite members whose shapes are preferably similar to the spectacles' temples. The swing arms are rotatably mounted at one end portion thereof to the forward portions of the spectacles' temples. At the other end portions of the swing arms are spherical joints which connect the swing arms to rear vision members. One surface of the rear vision members is reflective for viewing rearwardly.

At their operative positions, the swing arms extend forwardly of the eyepiece and at their stored positions the swing arms are rearwardly of the eyepiece, aligned with and adjacent to the temples.

In the first aspect of the invention, the axes about which the swing arms are rotatable are horizontal and transverse to the temples. In the second aspect of the invention, the axes of rotation of the swing arms are vertical and parallel to the temples. In still yet another aspect, a means is provided for adjusting the position of the rear vision members fore and aft with respect to the eyepiece.

It is a primary object of the invention to provide a fashionable, effective, easy to use pair of rear vision spectacles which will be widely accepted by the public.

Further features, benefits, objects and manner of using the invention will be understood from the ensuing description and drawings which disclose the invention in detail.



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