Eyeglass frame is a daily product for people's daily life. Myopia, reading glasses, sunglasses, driver's mirror and so on are all inseparable from the frames. Recently, the Provincial Bureau of Quality Supervision organized the inspection and inspection of the spectacle frame products in the province, spotted 14 batches of spectacle frame products from 14 companies, and failed 1 batch. The batch failure rate was 7.1%. The Provincial Quality Supervision Bureau reminded that the size of the spectacle frame produced by the formal enterprise is clear and complete. The factory site, production date, implementation standard number, production license number, and specifications and models should all be omitted.
In addition, the selection of the purchase of spectacle frames should fully consider light, tough, strong, durable, not easily deformed, non-irritating to the skin, and not easily eroded by skin secretions. Metal eyeglass frames are relatively light and strong, mostly with nose pads, easy to adjust, and suitable for most refractive errors. The plastic frames are relatively strong, not easily deformed and anti-allergic, and are particularly suitable for students and sports enthusiasts. The size of the spectacle frame to be selected matches the interpupillary distance, the size of the spectacle frame should be proportional to the size of the face, the upper edge of the frame should not be higher than the eyebrows, and the eyebrows should not be seen in the lens. The temples cannot be tightly clamped to the cheeks. . The shape of the spectacle frame should match the face and skin tone to meet the aesthetic requirements. Such as the rectangular face should use arc-shaped, or arc-transition-shaped frames, inverted triangle face should use the wide and sleek eyewear frame.
The structure of the spectacle frame is roughly divided into four types: full frame, half frame, frameless, and eyebrow frame. The advantage of the full frame is that it is safe, and the lens is fixed firmly and is not easy to fall off; the disadvantage is that the weight of the glasses is heavier. The advantage of a half-frame is that the field of vision is wider and lighter than the full frame; the disadvantage is that it is less robust than the full frame. The advantage of no frame is that it greatly reduces the weight of the frame, and can greatly reduce the impact of the glasses on the shape; the disadvantage is poor safety, overall stability is not good, easy to deformation, the lens is easily damaged, not suitable for the height lens. The advantage of the eyebrow line frame is that the weight is lighter than the half frame, and the overall stability is better than no frame; the disadvantages and the framelessness are also not suitable for the height number lens.
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