Photometry of diode emitters: light emitting diodes and infrared
emitting diodes

Kathleen Muray

doi:10.1364/AO.30.002178

Applied Optics
Vol. 30,
Issue 16,
pp. 2178-2186
(1991)
•https://doi.org/10.1364/AO.30.002178

Photometry of diode emitters: light emitting diodes and infrared emitting diodes

Kathleen Muray

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Kathleen Muray, "Photometry of diode emitters: light emitting diodes and infrared emitting diodes," Appl. Opt. 30, 2178-2186 (1991)

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Abstract

New methods are described for luminous intensity and luminous flux determination for small light sources. Introduction of a special multiple point method and correction techniques for integrating spheres are shown.

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Displacement	National lab 1 (mm)	Standardizing lab 2 (mm)	Inphora lab (mm)	R₀ (estimated) (mm)
Red	2.5	2.6	5.5–3.5	2.4–2.5
Green	3.4	3.3	3.4–1.1	2.4–2.5
Yellow	3.4	2.9	4.0–1.7	1.9–2.0
Lambertian yellow		1.5	4.0–1.8	1.9–2.0

Labor	NSL 1	NSL 2	Inphora
DE
31	5.74	5.82	(5.77)a
32	0.32	0.33	0.37
33	0.27	0.29	0.46
34	0.37	0.39	0.36
35	5.79	5.57	(5.65)a
36	0.52	0.53	0.48
37	2.54	2.54	(2.5)a
38	2.66	2.65	2.53
39	1.60	1.60	1.54
Multiple point method:	A	B	C

Standards: 31, 35, 37
No corrections other than self-absorption				Units: millilumens
Spheres:	1	2	3	CIE Measurement round average
CIE Series 2				1987
21 Red	1.54	1.57	1.49	1.49
22	9.43	9.11	9.54	9.52
23	0.94	0.95	0.88	0.75
24 Green	1.03	0.99	0.91	1.13
25	0.72	0.70	0.65	0.78
26	0.61	0.59	0.54	0.62
27 Yellow	3.89	3.86	3.94	4.13
29	3.59	3.60	3.67	3.70
CIE Series 3				NSL 1	NSL 2
31 Red	8.32	8.32	8.32	8.42	8.22
32	0.84	0.94	0.83	0.68	0.63
33	0.94	0.99	0.95	0.39	0.37
34 Green	0.40	0.42	0.35	0.40	0.42
35	9.19	9.19	9.19	9.21	9.16
36	0.51	0.52	0.45	0.53	0.53
37 Yellow	3.61	3.61	3.61	3.61	3.60
38	3.44	3.45	3.57	3.51	3.47
39	2.21	2.21	2.26	2.25	2.24
Lambertian
3 Green	21.17	19.89		19.85	17.70
2 Yellow	4.64	4.26		4.35	3.95
DE Series
15 Red		21.1	18.9
44		15.9	14.5
94		18.9	16.9
12 Green		20.8	19.1
24		19.7	18.7
44		22.7	22.1
7 Yellow		14.6	17.7
63		14.5	17.2
113		16.2	19.4

				Units: millilumens
Sphere	1	2	3	CIE Measurement round average
CIE Series 2					1987
21 Red	1.28	1.32	1.23		1.49
22	9.61	9.30	9.74		9.52
23	0.78	0.80	0.73		0.75
24 Green	1.04	0.99	0.91		1.13
25	0.73	0.70	0.65		0.78
26	0.62	0.59	0.54		0.62
27 Yellow	3.90	3.86	3.94		4.13
29	3.59	3.60	3.67		3.70
CIE Series 3				NSL 1	NSL 2	1988
31 Red	8.32	8.32	8.32	8.42	8.22
32	0.71	0.81	0.70	0.68	0.63
33	0.76	0.81	0.76	0.39	0.37
34 Green	0.40	0.42	0.35	0.40	0.42
35	9.19	9.19	9.19	9.21	9.16
36	0.52	0.52	0.45	0.53	0.53
37 Yellow	3.61	3.61	3.61	3.61	3.60
38	3.43	3.45	3.57	3.51	3.47
39	2.20	2.21	2.26	2.25	2.24
Lambertian				NSL 1	NSL 2	1988
3 Green	21.22	19.90		19.85	17.70
2 Yellow	4.64	4.26		4.35	3.95
DE Series
15 Red		20.7	18.6
44		15.9	14.5
94		18.2	17.0
12 Green		20.8	19.1
24		19.7	18.7
44		22.7	22.1
7 Yellow		14.6	17.6
63		14.5	17.1
113		16.2	19.3

Units: millilumens Spheres:	1	2	3
CIE Series 2
24 Green	1.04	1.04	1.04
25	0.73	0.74	0.74
26	0.62	0.62	0.62
CIE Series 3
34 Green	0.40	0.44	0.40
35	9.21	9.65	10.48
36	0.52	0.55	0.51
Lambertian
3 Green	21.25	20.90
DE Series
12 Green		21.81	21.82
24		20.73	21.36
44		23.80	25.19

Abstract

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Tables (5)

Equations (18)

Applied Optics