Full frame refers to the frame completely covering the lens. The line type of the full frame is mainly determined by the combination of the frame and crossbeam. The browline frame refers to the frame that directly wraps around a part of the lens.
At present, there are few glasses with crossbeams in the eyeglass mart, and with people's increasing demand for shape, it is not ruled out that such designs will be available in the future. If there is no crossbeam, the lines of the browline frame are mainly determined by the frame of the upper part.
Borderless glasses naturally refer to glasses without frames. Compared to other glasses with frames, this type of glass has much weaker lines, and at this point, the shape and lines of the lens itself are the main focus.
Bull horn frame refers to a rectangular plastic frame that generally does not have a nose pad, or the nose pad is not obvious. This type of frame is generally thicker and has strong lines.
The eyebrow edge crossbar frame refers to a crossbeam located in the middle of the eyebrows, presenting a double beam shape. The lines of this type of crossbeam also have a significant impact on the shape of the glasses.
After understanding the structure of glasses and the different types of glasses, and considering them comprehensively, it is easy to distinguish the line types of glasses. Glasses, like facial shapes, also have a distinction between straight and curved lines, so glasses can also be divided into straight and curved glasses.
For common facial shapes in daily life, rectangular, square, triangular, and diamond facial shapes belong to straight facial shapes. Round faces, oval faces, pear-shaped faces, and heart-shaped faces belong to curved face shapes with curves.
