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Parameters

Classic Polarized Sunglasses Men Women Brand Design Driving Square Frame No Screw Sun Glasses Goggle UV400 Gafas De Sol

Sunglasses are a kind of vision care products to prevent the damage to human eyes caused by strong sunlight. With the improvement of people’s material and cultural level, sunglasses can be used as special accessories for beauty or personal style. Our eyeball (lens) is very easy to absorb ultraviolet rays, and the damage of ultraviolet rays to the eyes is invisible. In order to protect the eyes, we must always wear sunglasses. Ophthalmologists recommend that you must always wear sunglasses to protect your eyes; this is because our eyeball (lens) is very easy to absorb ultraviolet rays, and the damage of ultraviolet rays has two prominent characteristics: 1. The damage of ultraviolet rays will accumulate. Since ultraviolet light is invisible light, it is difficult for people to perceive it intuitively. 2. The damage of ultraviolet rays to the eyes is irreversible, that is, irreparable. Such as: cataract surgery can only be replaced by intraocular lenses. Long-term damage to the eye can easily lead to damage to the cornea and retina, clouding of the lens until cataract occurs, resulting in permanent visual damage.

The tint of a sunglasses lens determines which parts of the mid-spectrum light the lens absorbs. Manufacturers use different colors to produce specific usage effects. 1. Gray is a good general-purpose color, with minimal color distortion while reducing brightness. Grey lenses provide glare protection, making it ideal for driving and general use. 2. Yellow or gold lenses reduce blue light while allowing more light of other frequencies to pass through the lenses. Because blue light bounces and scatters a lot of light, it can create a glare effect called blue haze. In fact, yellow eliminates the blue part of the spectrum, making everything appear bright and clear. This is also the reason why snow blindness sunglasses are generally yellow. These shades can distort color perception a bit, so sunglasses in these shades are not suitable for activities that require accurate color identification. 3. Amber and brown are also good general-purpose colors. They reduce the glare effect, and their unique molecules can absorb higher frequency colors, such as blue, in addition to UV light. Studies have shown that long-term exposure to near-ultraviolet light (such as blue and violet) is one of the causative factors of cataracts. These sunglasses cause the same color distortion as yellow lenses, but increase contrast and clarity. 4. The green lens can filter out some blue light and reduce the glare effect. Of all the color lenses, green lenses provide the highest contrast and the greatest visual acuity, so they are very popular. 5. Purple and rose lenses provide the best object contrast against a green or blue background. Therefore they are a good choice for hunting and water skiing.

FAQ

1. Can I get a samples?

Yes, we could send the samples to you.But, we need take charge for first time,the sample fee will be return after you place order. Or you can provide your FEDEX or DHL,UPS account.

2. How about the quality?

Have the acquired the CE.100% QC in produce process .Our products manager have 18 years experience in eyewear manufacturing.

3. Could I use my own LOGO or design on goods? Are they free?

Yes,customized logo and design on mass production are available.

4. What is the Delivery Time?

The stock frames are within one week after payment received.
For OEM order, the delivery time is around 20– 35 days which depends on the material and Design.

5. Can I trust you?

Absolutely YES. Wenzhou Centar Optics Co., LTD. is a specialized manufacturer and exporter of eyewear. We have been in this field for more than 18 years.Has been the customer’s praise and affirmation.

6. What is the payment terms?

T/T,Western Union.