With the first rays of the sun outside came the sellers of sunglasses. Buyers tray for the crowd: young people select each other a small mirror and buy a few pairs of sunglasses – to look more original upcoming summer. We hasten to warn the carefree fashionistas: sunglasses bought on the street for a nominal sum and not certified, will not protect your eyes, but on the contrary, will make them more vulnerable.

Photometer – in the Studio!

Quality points can be purchased in the specialized opticians. They cost from 500 rubles. Sunglasses from the new collection are worth a thousand rubles and more. The season of discounts and sales for summer optics, of course, winter.

Glasses sold in specialized stores, have certificates of quality. But most importantly, in optical stores photometers are devices that allow to independently verify the presence of UV protection.

If you doubted that you are offered high-quality glasses, you may ask the seller to show a copy of the "Certificate of conformity" or a copy of the "Declaration of conformity", which confirms the quality and safety of the product. Any self-respecting optician must be a photometer.

If not, then, without any extra scrapes, turn around and go to another store.

It should also be said that sunglasses will never lose its relevance! Therefore, their sale is one of the most profitable and long term business projects. And provided that the selling points You will implement via the Internet and use the colocation service (http://www.di-net.ru/collocation/colocation/) for their servers in some cheap data center, the profits would be enormous!

Optical filters for the weather

Glass sunglasses can be darker or light.

Lens color generally can be anything from green to orange. What does it do? More or less darkening of the lenses depends on the degree of light transmission. This value is usually stated in percent. But in order not to bother customers a number of digits, sunglasses divided into several groups. To the zero category took the glasses for aesthetic or fashion purposes. They are eagerly bought by young people without vision problems, eager to look at the expense of points a little smarter.

"Image" or "club" points miss 80-100% of visible light.

The filter is of the first category has conceded for 43-80% of the light. These glasses are suitable for wearing in the city in cloudy weather. Glasses with second and third degrees of obscuration are made for walking around the city, but in Sunny weather. They miss 18-43 and 8-18% light respectively.

Reflective lenses of the fourth category (the darkest of all), is passed only 3-8% of visible light. These glasses are not recommended for urban wear, driving. Their intended purpose – to protect eyes in the mountains, the sea, everywhere, where the sun blinds the person.

On glasses information contact lenses to write. All degrees of protection can be reflected in the passport which is attached to sunglasses. On the glasses can specify: a stamp – on the inside of the loop, the producer and icon of the European standard.

Also on the temples of sunglasses shows the model, color and size of rim.

Content:

1. Photometer – in the Studio! (You read that section);
2. Orange lens – for climbers (http://www.of-md.com/or-lins/);
3. Note to the buyer (http://www.of-md.com/sg-zm/);
4. The fashion for "sun" (http://www.of-md.com/sg-trends/).