SPECTACLE FRAME

• Main Author: YAMAUCHI, Ryuji
• Format: Patent
• Language: Chinese; English; French
• Published: 30.08.2018
• Subjects: CONTACT LENSES; OPTICS; PHYSICS; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES

A spectacle frame provided with a complete frame line (1). An asymmetric design is used on oblique angles of the frame line of the spectacle frame, and consists of an α angle and a β angle of unequal angle values. The angle value of the α angle is 30° to 70°, the angle value of the β angle is 20° to 45°; a proportion of the angle value of the α angle to the angle value of the β angle is greater than 1 and less than 3.5. The width of the frame line is less than 6 mm; the groove depth of the frame line is less than or equal to 0.6 mm. The spectacle frame has a strong retention force for a lens (2), and can effectively reduce the distortion of the lens; when a lens made of a resin material contracts due to a temperature change, the lens retention force of the spectacle frame can effect reduce the contraction form change of the resin lens. L'invention concerne une monture de lunettes pourvue d'une ligne de monture complète (1). Une conception asymétrique est utilisée sur des angles obliques de la ligne de monture