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Figure 3. Calculation of the Abbe number to describe the amount of chromatic dispersion for a medium. [8] Zhang, John X. J., and Kazunori Hoshino. Molecular Sensors and Nanodevices: Principles, Designs and Applications in Biomedical Engineering. 2nd ed., Academic Press, an Imprint of Elsevier, 2019.

Flint glasses are optical glasses with high chromatic aberration (Abbe number below 50) which tend to have a high refractive index (typically greater than 1.55). [12] Corrective glass lenses are often made from flint glass as the higher refractive index allows for a lighter weight. Dispersive prisms are also often constructed from flint glass to achieve a high angular dispersion. [12] Chromatic Dispersion CorrectionWhile style was strategic to their musical success — it was also a savvy way of cutting costs. Interestingly, frontman Björn Ulvaeus revealed in their documentary ABBA: The Official Photo Book that the group evaded a Swedish tax law, which rendered all work clothes tax deductible if you could prove they were too outrageous to wear in daily life. Although, I beg to differ. Hosken, R. W. (2007). "Circle of least confusion of a spherical reflector". Applied Optics. 46 (16): 3107–17. But like most groovy looks from the disco era, ABBA was at the forefront. They sang about ‘Dancing Queen'[s] after all. Paschotta, Rüdiger. Encyclopedia of Laser Physics and Technology: Optical Glasses. Wiley-VCH, 2008.

This compound lens can be optimized at a distance of either two wavelengths (achromatic lens), three wavelengths (apochromatic lens), or four wavelengths (superachromatic lens). [14] This point of optimization where chromatic aberration is minimized is called the circle of least confusion. [15] The achromatic lens is the most commonly used commercial lens, referred to as a doublet, and can drastically reduce the chromatic focal shift. [13] Specific Gravity Step into the world of ABBA's "Voyage" with our dancing queen costumes. As the legendary band makes their spectacular return, it's your chance to don attire inspired by their latest album and concert visuals. Nave, Carl Rod. "Refraction of Light". Hyperphysics - Georgia State University, 2009. hyperphysics.phy-astr.gsu.edu/hbase/geoopt/refr.html. Their meteoric rise was sparked by their famed Eurovision performance of original song “Waterloo”, which caused them to win the 1974 competition in Sweden.Celebrate the timeless style of ABBA with outfits that pay homage to their unparalleled legacy and their exciting new chapter. Join the voyage and shine on the dance floor!