Extending the color discrimination metric with consideration of illuminance level

Ying Liu; Zhenzhen Li; Zhiyu Chen; Michael R. Pointer; Qiang Liu; Tran Quoc Khanh

doi:10.1364/OL.454786

Optics Letters
Vol. 47,
Issue 7,
pp. 1851-1854
(2022)
•https://doi.org/10.1364/OL.454786

Extending the color discrimination metric with consideration of illuminance level

Ying Liu, Zhenzhen Li, Zhiyu Chen, Michael R. Pointer, Qiang Liu, and Tran Quoc Khanh

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Ying Liu, Zhenzhen Li, Zhiyu Chen, Michael R. Pointer, Qiang Liu, and Tran Quoc Khanh, "Extending the color discrimination metric with consideration of illuminance level," Opt. Lett. 47, 1851-1854 (2022)

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Abstract

Color discrimination is a crucial dimension for the visual assessment of white light sources. In this Letter, we took full advantage of data comparability among Farnsworth–Munsell 100 Hue (FM-100) color vision tests and modified our recent proposed color discrimination metric [Opt. Lett. 45, 6062 (2020) [CrossRef] ] to make it effective in quantifying the color discrimination capability of lighting under multiple illuminance levels. The updated metric was developed based on a meta-analysis of 100 sets of combined visual data derived from three groups of visual studies containing 29 FM-100 trials and its superiority was comprehensively validated by 140 sets of combined data from five groups of studies with 42 FM-100 trials.

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Supplementary Material (1)

Name	Description
Supplement 1	Supplemental data

Data availability

Data underlying the results presented in this paper are available in Supplement 1 and Liu et al. [10,22] and Königs et al. [19].

10. Y. Liu, Q. Liu, Z. Huang, M. R. Pointer, L. Rao, and Z. Hou, Optik 208, 163916 (2020). [CrossRef]

22. Y. Liu, L. Rao, Z. Huang, H. Gong, X. Wu, and Q. Liu, Lecture Notes in Electrical Engineering 600, 11 (2020). [CrossRef]

19. S. Königs, S. Mayr, and A. Buchner, Ergonomics 62, 1462 (2019). [CrossRef]

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ID	CCT (K)	Illuminance (lx)	CRI	GAI	CDM	TESadj
C1	3000 ± 100	50	91	55	1.90	63.67
C2		103	91	55	1.94	51.67
C3		205	91	54	1.84	41.67
C4		492	91	55	1.84	36.67
C5		798	91	56	1.90	32.50
C6		998	92	57	1.97	27.83
C7	4500 ± 100	52	94	86	5.21	28.17
C8		107	94	87	5.28	21.00
C9		217	95	88	5.40	19.33
C10		503	95	87	5.33	16.17
C11		812	95	88	5.40	8.00
C12		1007	95	88	5.38	13.50
C13	6000 ± 100	48	96	101	6.55	16.00
C14		103	96	101	6.49	15.83
C15		217	95	102	6.65	11.00
C16		523	95	102	6.65	11.83
C17		796	95	102	6.66	10.67
C18		999	95	102	6.68	9.83

ID	CCT (K)	Illuminance (lx)	CRI	GAI	CDM	TESadj
D1	3500 ± 100	63	91	61	2.80	57.67
D2		233	92	64	2.98	34.67
D3		684	91	65	3.16	27.33
D4	5000 ± 100	56	89	86	4.08	33.67
D5		240	89	87	4.94	20.67
D6		678	90	88	5.09	17.67
D7	6500 ± 100	61	94	103	6.15	18.00
D8		232	94	101	6.54	14.33
D9		682	93	101	6.56	12.33

ID	CCT (K)	Illuminance (lx)	CRI	GAI	CDM	TESadj
C1	3000 ± 100	50	91	55	1.90	63.67
C2		103	91	55	1.94	51.67
C3		205	91	54	1.84	41.67
C4		492	91	55	1.84	36.67
C5		798	91	56	1.90	32.50
C6		998	92	57	1.97	27.83
C7	4500 ± 100	52	94	86	5.21	28.17
C8		107	94	87	5.28	21.00
C9		217	95	88	5.40	19.33
C10		503	95	87	5.33	16.17
C11		812	95	88	5.40	8.00
C12		1007	95	88	5.38	13.50
C13	6000 ± 100	48	96	101	6.55	16.00
C14		103	96	101	6.49	15.83
C15		217	95	102	6.65	11.00
C16		523	95	102	6.65	11.83
C17		796	95	102	6.66	10.67
C18		999	95	102	6.68	9.83

ID	CCT (K)	Illuminance (lx)	CRI	GAI	CDM	TESadj
D1	3500 ± 100	63	91	61	2.80	57.67
D2		233	92	64	2.98	34.67
D3		684	91	65	3.16	27.33
D4	5000 ± 100	56	89	86	4.08	33.67
D5		240	89	87	4.94	20.67
D6		678	90	88	5.09	17.67
D7	6500 ± 100	61	94	103	6.15	18.00
D8		232	94	101	6.54	14.33
D9		682	93	101	6.56	12.33

Abstract

Supplementary Material (1)

Data availability

Cited By

Figures (3)

Tables (2)

Equations (2)

Optics Letters