Incandescent lamp
Image
Photo:
The light in this incandescent lamp is generated by heating a filament to high temperatures.
Type of media:
Image (127.5 kByte)
Last update:
2018-03-05
License:
This medium is made available under a CC BY-SA 4.0 international license.
What does this mean?
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This medium is made available under a CC BY-SA 4.0 international license.
What does this mean?
How to reference this medium
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Description:
In many light sources, for example, incandescent lamps or high-pressure gas-discharge lamps, a continuous light spectrum is generated by the interaction of large numbers of photons at very different energy levels. This means that the complete range of wavelengths is included, but in different proportions depending on the temperature.
Incidentally, the wavelength and energy distribution of incandescent lamps fit the Planck radiation formula extremely well.
Information and ideas:
Example of how physical laws are translated into technical applications. Double-coiled filaments are used, among other reasons, to increase the radiant surface.
Incidentally, the wavelength and energy distribution of incandescent lamps fit the Planck radiation formula extremely well.
Information and ideas:
Example of how physical laws are translated into technical applications. Double-coiled filaments are used, among other reasons, to increase the radiant surface.
Related media:
There are no other media directly related to this file.
Learning resource type:
Example
Subjects:
Chemistry; Personal, social and health education (PSHE); Physics; Technology
Grade levels:
Grade 1 to 4; Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
School types:
Elementary school; Middle/high school
Keywords:
Incandescent lamp; Light; Emission (thermal); Incandescent lamp; Light generation; Means of lighting; Optics; Radiant energy
Bibliography:
Siemens Stiftung Media Portal
Author:
Schumm-Tschauder
Rights holder:
© Siemens Stiftung 2017