The optimum sunglass filter?

Per G. Soederberg; Ralph Michael; Marcelo Ayala; Jiangmei Wu; Stefan Loefgren; John Merriam; Enping Chen

doi:10.1117/12.350616

18 June 1999 The optimum sunglass filter?

Per G. Soederberg, Ralph Michael, Marcelo Ayala, Jiangmei Wu, Stefan Loefgren, John Merriam, Enping Chen

Proceedings Volume 3591, Ophthalmic Technologies IX; (1999) https://doi.org/10.1117/12.350616
Event: BiOS '99 International Biomedical Optics Symposium, 1999, San Jose, CA, United States

Abstract

It is concluded that sunglasses shall block UVR and toxic blue light, allow transmittance of signal light and bring luminous intensity behind the filters to a comfortable level. It was found that some commercially available sunglasses, apart from one pair of photochromatic dark state lenses tested, block ultraviolet radiation (UVR) adequately. Further, it was found that it is possible to block the toxic blue radiation without interfering substantially on blue signal light perception. However, none of the sunglasses tested blocked the toxic blue light enough.

Citation Download Citation

Per G. Soederberg, Ralph Michael, Marcelo Ayala, Jiangmei Wu, Stefan Loefgren, John Merriam, and Enping Chen "The optimum sunglass filter?", Proc. SPIE 3591, Ophthalmic Technologies IX, (18 June 1999); https://doi.org/10.1117/12.350616

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