Judging the advantages and disadvantages of sunglasses can be examined from both quality and aesthetics.Aesthetic has personal factors, and quality is standard.The quality of sunglasses mainly refers to the quality of the lens.Currently in the world ...
How to identify the advantages and disadvantages of sunglasses
Judging the advantages and disadvantages of sunglasses can be examined from both quality and aesthetics.Aesthetic has personal factors, and quality is standard.The quality of sunglasses mainly refers to the quality of the lens.At present, the worlds general standards are standards for the US Food and Medicine and Health Inspection (F · D · A) standard.China
1. According to the F · D · A standard, while the lens guarantees the light transmission, it is necessary to filter more than 90%of the ultraviolet rays in the sun, and the lens should be labeled"UV-400Protct10n" tag, so it is very important to check the UV tag on the lens.
Second, the lens must not have the "degree" of optical lenses.Generally, if the refractiveness exceeds 15%, it will feel dizzy when wearing.
Third, the lens must have a high strength and pass the impact test.Generally speaking, the strength of plastic film (propionic acid or acetate), resin tablets, and glass tablets from small to large.
In the face of dozens of brands and thousands of styles of sunglasses, how to choose sunglasses that are suitable for them? People who often ride bicycles should wear resin slices of sunglasses; wear more sports sunglasses with large frames during exercise or add a pieceBelt, chain; people with myopia or remote vision can wear sunglasses clamps or dedicated optical sunglasses.In spring and autumn, choose a relatively lighter and stable sunglasses; the color of the frame in winter should be more gorgeous. Smart sunglasses with colorful films should be worn in snowy days.
A pair of sun mirrors may have favored prices due to the differences in brands, materials, packaging, styles, colors and publicity. Consumers should fully take into account the manufacturing costs and sales services.The quality of the 2030 yuan sunglasses often cannot be guaranteed.To buy a larger glasses store or a large shopping mall, it can generally make products better guarantee in quality inspection and health inspection.
At present, domestic sunglasses are the wholly -owned enterprises or joint ventures in Taiwan, Hong Kong, and are mostly concentrated in Guangdong, Fujian and other places. The product quality generally meets international standards.In addition to covering the domestic market, the product also exports a lot of exports to foreign countries.Several well -known brands include Parim, Bluepoint, Prosun, and so on.
Among the mid -price sunglasses, Parim sunglasses ranked first in the market, with an annual export value of more than 30 million US dollars.Its product characteristics are: "Parim Parim" on the outer packaging glasses bag; the lens has a "UV-400" label or laser label; the special code on the special anti-counterfeit tag is clear, printed "Follow the United States F · D · AStandard ": Place of origin, telephone, and location of the factory.
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