Lighting for color vision examination in the era of LEDs: The FM100Hue Test

Stephen J. Dain, David A. Atchison, Jeffery K. Hovis, Mei Ying Boon

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Lighting conditions nominated for color vision testing are many and varied. The recommendation of CIE color rendering index (CIE CRI)≥90 and correlated color temperature of close to 6500Kis widely made for color vision testing generally.With the demise of incandescent and fluorescent lighting and their replacement by light-emitting diodes (LEDs), this is an opportune time to revisit the recommendation. In this paper, we consider the current sources, acceptable and unacceptable, and improvements to the recommendation as it applies to the Farnsworth- Munsell 100 Hue Test (FM100Hue Test). We conclude that there is no need to treat LEDs as a special case but propose a modified CRI measure.

Original languageEnglish
Pages (from-to)122-132
Number of pages10
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Issue number4
Publication statusPublished - 1 Apr 2020
Externally publishedYes


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