Refractive index variation for SF11 flint glass, BK7 borosilicate glass and fused quartz, with calculation of Abbe numbers for SF11 by CMG Lee. Data is from <a class="external free" href="https://commons.wikimedia.org/wiki/File:RefractiveIndex3glasses.png">http://commons.wikimedia.org/wiki/File:RefractiveIndex3glasses.png</a> and <a rel="nofollow" class="external free" href="https://cdn.shopify.com/s/files/1/1090/0622/files/SCHOTT-N-SF11-Optical-Glass.pdf">http://cdn.shopify.com/s/files/1/1090/0622/files/SCHOTT-N-SF11-Optical-Glass.pdf</a> .
<a href="//commons.wikimedia.org/wiki/User:%D0%94.%D0%98%D0%BB%D1%8C%D0%B8%D0%BD" title="User:Д.Ильин">Д.Ильин</a>: translation
<a href="//commons.wikimedia.org/wiki/File:Abbe_number_calculation.svg" title="File:Abbe number calculation.svg">File:Abbe number calculation.svg</a> by <a href="//commons.wikimedia.org/wiki/User:Cmglee" title="User:Cmglee">Cmglee</a>