• Title/Summary/Keyword: 선글라스 렌즈규격

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A Study of Sunglasses being sold in Domestic (국내에서 시판되고 있는 선글라스에 관한 연구)

  • Lee, Won Jin;Sung, Duk Yong;Youk, Do Jin;Kang, Sung Soo;Jang, Yoon Seok;Park, Sang Chul;Park, Hae Jong;Shin, Hoy Sun;Jeon, Young Ki
    • Journal of Korean Ophthalmic Optics Society
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    • v.9 no.1
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    • pp.125-134
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    • 2004
  • By applying the test methods of "Protection Eyewear Standard (KS P 8147)", "Glasses Frame Standard (KS G 3306)" and "Lens Standard for Sunglasses (KS P 4404)", this study analyzed optical functions of sunglasses now being sold in a road shop (A shop), a fashion goods store (B shop), a shop of highway rest area (C shop) and an optical shop (D shop). When compared with sunglasses (UV transmittance rate 8.8%) of a road shop, UV Block effects of sunglasses (UV transmittance rate 0.7%) of an optical shop showed good results. In addition, the average surface resistance against abrasion for sunglasses which was sold at an optical shop was 1.4% that was much higher than that of sunglasses of a road shop(2.2%).

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Properties of Sunglass Lenses by Non-Destructive Test for the Sunglass Standards (비파괴식 검사를 통한 선글라스의 품질에 관한 연구)

  • Lim, Yong-Moo;Shim, Moon-Sik;Sim, Hyun-Seog;Kim, Sang-Moon
    • Journal of Korean Ophthalmic Optics Society
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    • v.6 no.1
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    • pp.125-131
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    • 2001
  • In this study, we compared the properties of 23 high and 55 low price sunglass lenses with the standards in the ordinary optical properties, materials, coloration, UV, IR and luminous transmittance, color acceptance for traffic signal, chromaticity and contrast sensitivity. The ordinary optical properties of the lenses met comparatively the requirements of the KS standard. The HIGH-type and LOW-type lenses were primarily made by glass and acrylate, respectively. In the coloration, HIGH-type was in group around neutral color but LOW-type was distributed widely on the line between 570 nm and 485 nm. There are fails in 7% of HIGH-type and 18% of LOW-type in the stimulus purity of the luminous transmittance. Wavelength of the UV/VIS cut-off was over 350 nm for HIGH-type but 6% of LOW-type was under 350 nm. In the erythemal UV, all HIGH-type met the needs of standards but 5 LOW-type failed with DIN standard In the near UV, KS standard worked in stringency, and HIGH-type showed more failure than LOW-type. The characteristics of the IR transmittance of HIGH-type was better than that of LOW-type. In the color acceptance of traffic signal, all HIGH-type met the needs of ANSI standards but 21.8% of LOW-type failed with the standard. In the contrast sensitivity tested with various coloured sunglasses, the value increased with increasing of Land decreasing of test distance. In view of the results so far, HIGH-type met with excellent properties as compared with LOW-type.

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