Blue Blocking Glasses
25% less light-induced retinal cell death rate versus a naked eye, with a 20% cut of Blue-Violet Light. Retinal Pigment Epithelium cells were exposed to Blue-Violet Light, reproducing the physiological exposure to sunlight of the 40-year-old eye.
Prevencia is designed to selectively filter out harmful light while letting beneficial light pass through
Hongchen Blue Block lens is proven to deflect harmful Blue-Violet Light by 20%*4
Hongchen Blue Block lens has an Eye-Sun Protection Factor of 25, which means 25x times more UV protection for your eyes compared to wearing no lens at all
No-Glare blue light lenses work in 3 ways:
Selectively filter out harmful light (Blue-Violet & UV)
Allow beneficial light to pass through (visible light, including Blue-Turquoise)
Maintain excellent transparency (clear No-Glare lens) for optimal vision at all times
Hongchen optical provides superior clarity of vision with the most complete protection.
Product Type:
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computer , TV , Mobile protection , blue block, blue cut lens
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Material:
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resin lens
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UV PROTECTION:
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UV415~UV420
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Index:
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1.56 ,1.61, 1.67
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Specific Gravity:
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1.32 Depend on the index and material you choose
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Transmittance:
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98~99%
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HMC Color:
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Green, Blue, Purple
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Diameter:
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65mm/70mm/75mm
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