The experiments described below show the irradiance and illuminance spectra of two fluorescent lamps in relation to their color temperatures, and the efficacy in comparison to that of an incandescent lamp. Spectra of “warm white” and “cool daylight” fluorescent lamps are demonstrated.
Topics
Gas discharge lamps
REFERENCES
1.
H. S.
Leff
, “Illuminating physics with light bulbs
,” Phys. Teach.
28
, 30
–35
(Jan. 1990
).2.
W. S.
Wagner
, “Temperature and color of incandescent lamps
,” Phys. Teach.
29
, 176
–177
(March 1991
).3.
L.
Hodges
, “Compact fluorescent light bulbs
,” Phys. Teach.
30
, 90
–91
(Feb. 1992
).4.
B. H.
Soffer
and D. K.
Lynch
, “Some paradoxes, errors, and resolutions concerning the spectral optimization of human vision
,” Am. J. Phys.
67
, 946
–953
(Nov. 1999
).5.
J. M.
Overduin
, “Eyesight and the solar Wien peak
,” Am. J. Phys.
71
, 216
–219
(March 2003
).6.
L. M.
Gratton
, M.
Perini
, and V.
Zanetti
, “Compact fluorescent lamp observed through a diffraction grating
,” Phys. Teach.
42
, 270
–271
(May 2004
).7.
L. T.
Escalada
, N. S.
Rebello
, and D. A.
Zollman
, “Student explorations of quantum effects in LEDs and luminescent devices
,” Phys. Teach.
42
, 173
–179
(March 2004
).8.
D. C.
Agrawal
, H. S.
Leff
, and V. J.
Menon
, “Efficiency and efficacy of incandescent lamps
,” Am. J. Phys.
64
, 49
–654
(May 1996
).9.
McGraw‐Hill Encyclopedia of Science and Technology, Vol. 14, edited by S. P. Parker (McGraw‐Hill, New York, 1997), pp. 626–628.
10.
PASCO scientific, 10101 Foothills Blvd, Roseville, CA 95747‐7100; www.pasco.com.
11.
Y.
Kraftmakher
, “Determination of the quantum efficiency of a light detector
,” Eur. J. Phys.
29
, 681
–687
(2008
).12.
Edmund Optics, 101 East Gloucester Pike, Barrington, NJ 08007‐1380; www.edmundoptics.com.
13.
Thorlabs, 435 Route 206, PO Box 366, Newton, NJ 07860‐0366; www.thorlabs.com.
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