Spectacle frame suitable for assembling progressive multi-focus lenses and lens assembling method thereof

Abstract

The invention relates to a spectacle frame suitable for assembling progressive addition lenses and a lens assembling method thereof. The spectacle frame adopts specific structural parameters of spectacle rings, pile heads and spectacle legs, and the shape characteristics of the spectacle frame are more suitable for assembling progressive addition lenses, so that a vision fuzzy area is avoided, the comfort is improved, and the adaptation period is shortened; the spectacle frame is provided with a lens ring lining sheet printed with a light black assembling reference point and a measuring scale coordinate, and the assembling reference point is arranged at an intersection point of 22.5 mm in the horizontal direction and 22mm in the vertical direction of the lens ring; the assembly reference point is used as an original point for the measuring scale coordinate, scales on the horizontal and vertical coordinate axes are within the range of + / -2.5 mm in the horizontal direction and + / -2 mm in the vertical direction of the assembly reference point, the spectacle frame can be used as a tool for accurately measuring the pupil distance and the pupil height, edge cutting assembly of the lens is facilitated, and the fitting success rate, precision and wearing comfort of the optical lens are effectively improved; and the assembly point, the far measurement point and the near measurement point of the progressive multi-focus lens after edge cutting can be restored by using the structural parameter characteristics of the spectacle frame.

Description

technical field [0001] The invention relates to a spectacle frame and a method for assembling the lenses thereof, in particular to a spectacle frame suitable for assembling progressive multi-focus lenses and a method for assembling the lenses thereof. Background technique [0002] In the fitting of progressive multifocal lenses, ordinary frames seriously affect the fitting of progressive multifocal lenses due to the unclear range of structural parameters and lack of pertinence. Specifically in the following aspects: [0003] The curvature of the lens ring is too flat. At present, the curvature of the lens ring on the market is generally lower than 300, or even made into a plane. After assembly, the lens curvature and the overall wrapping angle of the frame tend to be flattened. The interference area on the nose and temporal side of the multi-focal lens is more More exposure to the field of vision reduces the wearing clarity and comfort; the size of the lens ring is too larg...

AI Technical Summary

Problems solved by technology

[0007] The length and opening width of the mirror legs are not defined. When the temples are too short, the mirror ring surface will lean forward as a whole, and the lower edge of the mirror ring will be close to or even rest on the cheek. If the mirror legs are too long, the mirror frame will loosen and slide down as a whole. The corrective effect is unattractive and uncomfortable; the width of the mirror legs is variable and undefined after the temples are completely and naturally opened. Often, the overall width of the mirror frame is appropriate but the width of the ear side is too small or too large, and the wearing is too tight or too loose

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