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photoprotective-technologies
Press Release
Dec 16, 2020
PPT Lands Chinese Patent for the Glare Reduction Factor for Blue Light Filtering Glasses
PPT has taken a leadership role in the global eyecare industry by addressing the question, "How much blue light to filter?" It developed and received a Chinese patent for the Glare Reduction Factor (GRF) that measures the efficacy of a computer lens to reduce glare.
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