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LED Lighting BASIC PHYSICS: a) Give typical forward I-V curves for R-G-B LEDS. Be specific in your...

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Physics

LED Lighting BASIC PHYSICS:

a) Give typical forward I-V curves for R-G-B LEDS. Be specificin your three explanations and use manufacturers spec sheets. Alsoexplain why LED lights are both Hg (think bulb breakage effects andland fill issues with dead fluorescent bulbs) and UV free ascompared to fluorescents. UV rays cause colors to fade in retailclothing stores, art work to fade in museum lighting and UVaccelerates the rancidity of meat fat. UV accelerates the rancidityof meat fat.

b) Explain how and why LED emission takes place over a smallsolid angle or in simple terms in beam like and unidirectional. Usemanufacturer spec sheet plots of emission angles. In contrastfluorescent and incandescent light is omni-directional spreadevenly over all 4Ï€ sterradians.

Answer & Explanation Solved by verified expert
3.8 Ratings (762 Votes)
The way colors of individual LEDs are determined is the energyan electron loses when the electron moves from one side of the LEDto the other The amount of energy the electron sheds in the formof light is determined by the materials in the LED The photon thatis generated will have a characteristic wavelength andmanufacturers have chosen materials to arrive at the desiredcolors The red to blue characteristics deviate    See Answer
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