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KMID : 1011420120170040425
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Journal of Korean Ophthalmic Optics Society
2012 Volume.17 No. 4 p.425 ~ p.433
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Optical Analysis of Film Colored Overlay for people with Scotopic Sensitivity Syndrome
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Jang Young-Gun
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Abstract
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Purpose: Basic design of virtual colored overlay, film overlay, colored lenses and colored glasses for people with Scotopic Sensitivity Syndrome. Methods: I calculated sRGB and RGB values of the overlays from measured data. I evaluated the relationship between the combinational chromaticities composed of Galaxy Tab white background and film overlays and the chromaticities of pure film overlays. Results: Implementable sRGB and RGB values of the overlays is calculated. The chromaticities of film overlays are different from them with white paper background and them with Galaxy Tab`s white background, but showed a certain relationship between them. Light transmittances of Intuitive Overlay are the most (59%-79%) among them and average light reflectance of Reading Ruler is least(8%). Conclusions: The sRGB values and the RGB values are directly applicable to implement assistive tools and the light transmittances are used to calculate α, transparency of virtual overlay in IT devices. It is recommended to consider the chromaticity of white color in implementing virtual colored overlay in the case which the chromaticity is considerably different to theoretical chromaticity of white color.
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KEYWORD
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Film overlay, Scotopic sensitivity syndrome, Virtual colored overlay, Chromaticity, Light transmittance
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