Incandescent bulb

neelakash

As we know the incandescent bulbs emit mostly heat and very small amount of visible light.Is there any way to increase the proportion of the visible light? If there is why is it not employed???

Can anyone help me to start with it?

stewartcs

Yes, and they are in use.

http://www.eartheasy.com/live_energyeff_lighting.htm

russ_watters

The only way to increase the output of an incandescent lamp is to increase the temperature, to move the peak of the black-body spectrum into the visible range.

Or -- you can use a lamp that doesn't use black-body radiation to generate light (like fluorescents, as stewartcs linked).

neelakash

Best answer so far russ_watters

Thank you.

Similar Threads for: Incandescent bulb
Thread	Forum	Replies
Odd results from an incandescent bulb	General Physics	9
Incandescent light clarification	General Physics	7
incandescent light	Introductory Physics Homework	2
Incandescent lamp	Chemistry	4

neelakash	Incandescent bulb Tweet As we know the incandescent bulbs emit mostly heat and very small amount of visible light.Is there any way to increase the proportion of the visible light? If there is why is it not employed??? Can anyone help me to start with it?

stewartcs Recognitions: Gold Member Science Advisor	Yes, and they are in use. http://www.eartheasy.com/live_energyeff_lighting.htm

russ_watters Mentor	The only way to increase the output of an incandescent lamp is to increase the temperature, to move the peak of the black-body spectrum into the visible range. Or -- you can use a lamp that doesn't use black-body radiation to generate light (like fluorescents, as stewartcs linked).

neelakash	Incandescent bulb Best answer so far russ_watters Thank you.