Uploaded February 2019 | Updated September 2026, 2 weeks ago

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I use a deuterium light source to determine the absorption effectiveness of UV safety glasses and sunscreen, as well as common transparent materials.

Another interesting application of sunscreen, UV, and visual indicators:
youtube.com/watch?v=h8VJft5Xq5g

References for CIE erythema action spectrum:
en.m.wikipedia.org/wiki/Ultraviolet_index
http://sci-hub.tw/10.1039/C1PP05271C

pubs.rsc.org/en/content/articlelanding/2012/pp/c1pp05271c/unauth#!divAbstract

en.wikipedia.org/wiki/Deuterium_arc_lamp
en.wikipedia.org/wiki/Emission_spectrum#Radiation_from_molecules

aseq-instruments.com

ebay.com/itm/Fused-quartz-glass-plate-50mm-x-50mm-x-1mm-2-pieces-Free-Shipping/123634196683

amazon.com/gp/product/B001RKFZPC

patreon.com/AppliedScience