Wholesale Cr39 Photochromic Lenses Factories – 1.56 Spin Coat Photochromic – YOLI

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Wholesale Cr39 Photochromic Lenses Factories – 1.56 Spin Coat Photochromic – YOLI Detail:

The Photochromic Spin Coat Technology

Spin coating technique is used for making a thin coating on relatively flat substrates. The solution of material to be coated is deposited onto the substrate which is spun off at a high velocity in a range of 1000-8000 rpm and leaving a uniform layer.

spin coat lens

Spin-coating technology makes the photochromic coating on the surface of lens, so color only changes on lenses surface, while in-mass technology make the whole lens change color.

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How Do Spin Coat Photochromic Lenses Work?

Spin coat photochromic lenses work the way they do because the molecules that are responsible for the darkening of the lenses are activated by the ultraviolet radiation in sunlight. UV rays can penetrate clouds, which is why photochromic lenses are capable of darkening on cloudy days. Direct sunlight is not required for them to work.

They shield eyes from 100 percent of the harmful ultraviolet rays from the sun.

This mechanic is also used inside most windshield glasses in cars. Windshields are designed this way to help drivers see in sunny conditions. This also means that since the UV rays that enter a car are already filtered by the windshield, spin coat photochromic eyeglasses will not themselves darken.

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Blue Block Spin Coat Photochromic Lenses Help Protect Against Harmful Blue Light

Spin Coat Photochromic Lenses is available in blue block and non blue block.

Blue block Spin Coat Photochromic lenses help protect against harmful blue light both indoors and outdoors. Indoors, blue block spin coat photochromic lenses filter blue light from digital products. Outdoors, they reduce harmful UV light and blue light from sun light.

blue light
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Coating

EMI layer: Anti-static
HMC layer: Anti-reflective
Super-Hydrophobic layer: Water-repell
Photochromic layer: UV protection

In-mass Photochromic VS Spin Coat Photochromic

	Monomer Photochromic Lens	Spin Coat Photochromic Lens
Blue Block	Available	Available
ANTI UV	100% UV Protection	100% UV Protection
Index Available & Power Range	1.56	1.56	1.60MR-8	1.67
	sph -600~+600	sph -600~+600	sph -800~+600	sph -200~-1000
	cyl -000~-200	cyl -000~-200	cyl -000~-200	cyl -000~-200
Coating	HMC: Anti Reflection	SHMC: Anti Reflection, Water Repellent, Anti Smudge
Advantages and Disadvantages	Normal wastage, price is fair.	High wastage, price is higher.
	Color change fast; color fade slowly.	Color change fast; color fade fast.
	Color doesn’t change uniformly; Lens edge is darker, lens center lighter.	Color change uniformly; Lens edge and lens center have same color.
	High power lens is more darker than low power lens	Same color between high power and low power
	Lens edging is as easy as normal lens	Lens edging process should be more careful, because spin coating is easy to peel off.
	More durable	Short service life

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Our well-equipped facilities and exceptional good quality manage throughout all stages of production enables us to guarantee total shopper satisfaction for Wholesale Cr39 Photochromic Lenses Factories – 1.56 Spin Coat Photochromic – YOLI , The product will supply to all over the world, such as: London, New Zealand, Colombia, During the 10 years of operating, our company always try our best to bring consumption satisfaction for user, built a brand name for ourselves and a solid position in the international market with major partners come from many countries such as Germany, Israel, Ukraine, United Kingdom, Italy, Argentina, France, Brazil, and so on. Last but not least, price of our products are very suitable and have fairly high competition with other companies.

Bifocal Photochromic Lens