SPECTACLES HAVING DEFORMATION PREVENTIVE FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide spectacles which are mounted by fitting of eyewire parts of a planar frame into outer peripheral grooves disposed at lenses and hardly give rise to the deformation of the frame. SOLUTION: The spectacles are mounted with the lenses 5 and the planar frame by fitting of the inner peripheral edges of the eyewire frame 1 of the metallic planar frame into the outer peripheral grooves 51 disposed at the outer peripheries of the lenses 5. The frame is provided with deformation prevention to make the plate surface more rigid. The deformation preventive parts are formed by curving the plate surface of the planar frame to an arcuate shape to the outer side in a transverse direction by bending. The deformation preventive part are formed by party projecting the plate surface of the planar frame by drawing.