Publication: A handheld LED coloured-light mixer for students to learn collaboratively the primary colours of light
Issued Date
2009-07-23
Resource Type
ISSN
13616552
00319120
00319120
Other identifier(s)
2-s2.0-67650695656
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Physics Education. Vol.44, No.2 (2009), 123-128
Suggested Citation
Suchai Nopparatjamjomras, Ratchapak Chitaree, Bhinyo Panijpan A handheld LED coloured-light mixer for students to learn collaboratively the primary colours of light. Physics Education. Vol.44, No.2 (2009), 123-128. doi:10.1088/0031-9120/44/2/001 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/28345
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
A handheld LED coloured-light mixer for students to learn collaboratively the primary colours of light
Other Contributor(s)
Abstract
To overcome students' inaccurate prior knowledge on primary additive colours, a coloured-light mixer has been constructed to enable students to observe directly the colours produced and reach the conclusion by themselves that the three primary colours of light are red, green, and blue (NOT red, yellow, and blue). Three closely packed tiny light-emitting diodes (LEDs) producing primary colours are combined with green intensity varying circuitry to generate the standard colour-triangle secondary colours and various shades ranging from yellow to orange and pale blue to cyan. In the laboratory, students worked collaboratively, predicting, observing and explaining, and finally discussing until there was a consensus. © 2009 IOP Publishing Ltd.