A Study on the Functional Spectacle Lens with Photochromic, UV Blocking and Polarization
DOI:
https://doi.org/10.14419/ijet.v7i2.33.18015Keywords:
spectacle lens, sun glass, polarization, UV, blue light.Abstract
Background/Objectives: It is necessary to secure competitiveness through the development of functional spectacle lens due to low cost of Chinese glasses lens and sluggish domestic glasses lens industry.
Methods/Statistical analysis: A taping method was used to develop a polarized spectacle lens that partially blocks ultraviolet and blue light and has photochromic properties.
Findings: The photochromic properties of the fabricated lens showed a recovery time of about 0.5 seconds for dark reaction and about 3 seconds for dark reaction. Also, the polarization ability was about 95%. Ultraviolet rays were almost shut off and blue light was reduced by about 30%. Lenses combining photochromic, UV blocking and polarizing functions are the first attempts at researching the market for spectacle lenses in Korea.
Improvements/Applications: The developed lens can dramatically reduce glare caused by late night operation or reflected light with a functional lens. It serves as a sunglass for outdoor use with strong ultraviolet rays, and can be used as a spectacle lens at normal times.
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How to Cite
Received date: August 20, 2018
Accepted date: August 20, 2018
Published date: June 8, 2018