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The variables <math>c_{r,i}, d_{r,i}</math> and <math>c_{t,i}, d_{t,i}</math>are not properly introduced. While the indices ''r'' and ''t'' refer to the reference and the test light source, ''i'' refers to the test color. However, it is not explained what the connection of ''r,i'' or ''t,i'' means. If it refers to the '''apparent''' chromaticity of the ''i''th source color illuminated by light type ''r'' or ''t'', this should be explained explicitely and unambigously.--[[User:SiriusB|SiriusB]] ([[User talk:SiriusB|talk]]) 15:08, 6 January 2012 (UTC)
== Typical values / Light Source Chart ==
Can regular incandescent bulbs be added to the Typical values / Light Source Chart? I can't tell if the last entry of incandescent/halogen refers to ordinary (classical) incandescent bulbs or only to the newer halogen bulbs. Do designations such as "soft white" etc. have differing CRI values? I notice a particlar LED-based bulb advertised as CRI of 80. This seems low. Is this typical? Thanks! --[[User:Lbeaumont|Lbeaumont]] ([[User talk:Lbeaumont|talk]]) 15:30, 5 March 2012 (UTC)
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