Increase Visible Light from Incandescent Bulbs: Benefits & Challenges

[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.