Difference between revisions of "MainPage:Nuclear:Summer2014:LEDSpectrum"
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| + | == Abstract == | ||
| + | Light-Emitting Diodes have a multitude of uses due to their increasing efficiency, long life, reliability, durability, and practical size. As the uses for LEDs widen, there is a greater need to precisely know their optical characteristics. Therefore, this project aims to determine the spectrum of Light-Emitting Diodes and the relationship between wavelength and light intensity. To record the spectrums of the various LEDs present in the lab, a spectrometer must be constructed. A power source will be attached to the LED so that it may convert electrical energy into light. After the light is converted into a more precise beam by a collimator, it will be separated into various wavelengths (or colors) by the diffraction grating. A slit will then limit which wavelength of light may be detected and amplified so that the voltage and thus intensity of the light may be recorded. | ||
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== '''Light-Emitting Diodes''' == | == '''Light-Emitting Diodes''' == | ||
Revision as of 11:00, 7 July 2014
Abstract
Light-Emitting Diodes have a multitude of uses due to their increasing efficiency, long life, reliability, durability, and practical size. As the uses for LEDs widen, there is a greater need to precisely know their optical characteristics. Therefore, this project aims to determine the spectrum of Light-Emitting Diodes and the relationship between wavelength and light intensity. To record the spectrums of the various LEDs present in the lab, a spectrometer must be constructed. A power source will be attached to the LED so that it may convert electrical energy into light. After the light is converted into a more precise beam by a collimator, it will be separated into various wavelengths (or colors) by the diffraction grating. A slit will then limit which wavelength of light may be detected and amplified so that the voltage and thus intensity of the light may be recorded.
Light-Emitting Diodes
Spectrometers
Materials and Methods
Results
Analysis
Conclusion
Sources
"Build a Spectrometer!" University of Colorado Boulder, n.d. Web. 3 July 2014. <http://www.colorado.edu/physics/phys3340/phys3340_sp14/CourseInformation/Optics/Build%20a%20spectrometer%20v2.pdf>.
"High Speed Photodetectors." Detectors. Thorlabs, n.d. Web. 3 July 2014. <http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=1295>.
"Holograph Gratings, Reflective." Optical Elements. Thorlabs, n.d. Web. 3 July 2014. <http://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=25>.
"The Radiometry of Light Emitting Diodes." Labsphere. Labsphere, Inc., n.d. Web. 3 July 2014. <http://www.labsphere.com/uploads/technical-guides/The%20Radiometry%20of%20Light%20Emitting%20Diodes%20-%20LEDs.pdf>.
"Ruled Diffraction Gratings, Reflective." Optical Elements. Thorlabs, n.d. Web. 3 July 2014. <http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=26&pn=GR50-1204#3743>.
Tavener, Stewart J., and Jane E. Thomas-Oates. "Build Your Own Spectrophotometer." Royal Society of Chemistry. N.p., Sept. 2007. Web. 3 July 2014. <http://www.rsc.org/images/EiC-05_2007-spectrophotometer_tcm18-214788.pdf>.
"Things You Should Know about LEDs." University of Nevada Los Vegas Department of Physics and Astronomy. University of Nevada Los Vegas, n.d. Web. 3 July 2014. <http://www.physics.unlv.edu/~bill/PHYS483/LED_PIN.pdf>.
Saeedifard, Maryam. "Introduction to Light Emitting Diodes (LEDs)." College of Engineering, Purdue University. Purdue University, n.d. Web. 7 July 2014. <https://engineering.purdue.edu/~ece495/Power_Electronics_Lab/LED_Basics.pdf>.
"Photometer and Optical Link." Department of Physics, University of Colorado Boulder. University of Colorado Boulder, n.d. Web. 7 July 2014. <http://www.colorado.edu/physics/phys3340/phys3340_sp07/CourseInformation/Electronics/Exp_6.pdf>.
Scalise, Randall J. "Diffraction Grading." SMU Physics Electricity and Magnetism Laboratory Manual. SMU Dedman College of Humanities and Sciences, n.d. Web. 7 July 2014. <http://www.physics.smu.edu/~scalise/emmanual/diffraction/lab.html>.
"Wavelengths of Line Spectra and the Diffraction Grating." Launceston College - Physics. Launceston College, n.d. Web. 07 July 2014. <http://www.launc.tased.edu.au/online/sciences/physics/diffra/diffrac.htm>.