Newton's Green and Goethe's Purple - Color Experiments with LEDs

Autor/inn/en	Hanisch, C.; Ziese, M.; Oehme, W.
Titel	Newton's Green and Goethe's Purple - Color Experiments with LEDs
Quelle	In: Physics Teacher, 59 (2021) 9, S.712-718 (7 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-921X
Schlagwörter	Science Instruction; Light; Color; Science Experiments; Physics; Scientific Concepts; Concept Formation + Suchen Sie Ihr Suchwort? Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Licht; Colour; Farbbezeichnung; Farbe; Physik; Concept learning; Begriffsbildung
Abstract	White light refracted by a glass edge or a prism might be split into the colors of the rainbow but, when restricted by a suitable arrangement of edges, might also yield a sequence of colors complementary to the rainbow. We studied the creation of these color fields experimentally with a setup consisting of RGB light-emitting diodes that cover all color combinations of the three primary colors red, green, and blue. These light fields were projected through a prism onto a screen or a camera to generate various color fields by refraction. Applying the rules of additive color mixing, a simple RGB model based on the slit spectrum of the light convincingly reproduces the observed color patterns. The parallel use of model and experiment enables a clear recognition of unusual spectra from particularly combined light fields and yields an explanation of their origin. (As Provided).
Anmerkungen	American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://aapt.scitation.org/journal/pte
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01