A Study on the Functional Spectacle Lens with Photochromic, UV Blocking and Polarization

  • Authors

    • Doo Hee Han
    2018-06-08
    https://doi.org/10.14419/ijet.v7i2.33.18015
  • spectacle lens, sun glass, polarization, UV, blue light.

  • 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.

  • References

    1. [1] Sang Min Lee, (2006). Method for manufacturing photochromic plastic lens. Korean Patent No. 10-0688409

      [2] Gi Hyun Kim, (2008). Photochromic composition and high refractive index optical lens manufactured therefrom, optical product. Korean Patent No. 10-0838529.

      [3] Minsang Lee, (2006). Method for manufacturing photochromic plastic lens.Korean patent No.10-0568409.

      [4] Izumi, Shinobu, Teranishi, Kazuhiro, (2014). Chromene Compound. WO, 2012176918.

      [5] Richard Alexander Evans, (2004). Photochromic compositions and light transmissible articles. WO. 2004041961.

      [6] Richard Alexander Evans, (2009). Photochromic polymer and composition comprising photochromic polymers. WO. 20091465091.

      [7] Richard Alexander Evans, Nino Malic, Ian John DAGLEY, (2012). Photochromic polymers. WO, 2012162725.

      [8] Meng He, Anil Kumar, Darrin R. Dabideen, “Indeno-fused ring compoundsâ€, WO, 201303260, 2013

      [9] Uno N Co. Ltd., (2016). The photochromic material in which the fading speed is very fast and which is novel. Korean Patent, Application No. 10-2016-0134949.

      [10] Sung Im Kim, “Polarized lens manufacturing methodâ€, Korean Patent No. 100964579, 2010

      [11] Doo Hee Han, (2017). Contrast Response Characteristics of the Refractive Index 1.60 Light and Shade Lens. Proceedings of Spring Conference KAIS2017.

      [12] Doo Hee Han, (2015). Eyeglass Lenses Which Protect UV and Blue Light. International Journal of Applied Engineering Research, ISSN 0973-4562 Vol. 10 No. 90.

      [13] Doo Hee Han, (2017). Development of functional spectacle lens with photo-discoloration and ultraviolet blocking function. Proceeding of ICCT2017.

      [14] Doo Hee Han, (2017). UV Protection Lens of Refraction Ratio 1.60, Proceedings of Spring Conference KAIS2017.

      [15] Doo Hee Han, (2017). Spectroscopic characteristics of UV Protection and Photochromic Lens in Refraction Ratio 1.60. Proceedings of Autumn Conference KAIS 2017.

  • Downloads

  • How to Cite

    Hee Han, D. (2018). A Study on the Functional Spectacle Lens with Photochromic, UV Blocking and Polarization. International Journal of Engineering & Technology, 7(2.33), 1195-1198. https://doi.org/10.14419/ijet.v7i2.33.18015