Increase Visible Light from Incandescent Bulbs: Benefits & Challenges

  • Thread starter Thread starter neelakash
  • Start date Start date
  • Tags Tags
    Bulb
AI Thread Summary
Increasing the visible light output from incandescent bulbs primarily involves raising their operating temperature to shift the black-body radiation spectrum into the visible range. However, this approach can lead to reduced efficiency and increased heat production. Alternatives like fluorescent lamps generate light without relying on black-body radiation, offering higher visible light output. Despite these options, traditional incandescent bulbs remain popular due to their warm light quality and simplicity. The discussion highlights the trade-offs between light quality and energy efficiency in lighting technology.
neelakash
Messages
491
Reaction score
1
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?
 
Physics news on Phys.org
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).
 
Best answer so far russ_watters

Thank you.
 
Thread 'Gauss' law seems to imply instantaneous electric field propagation'
Imagine a charged sphere at the origin connected through an open switch to a vertical grounded wire. We wish to find an expression for the horizontal component of the electric field at a distance ##\mathbf{r}## from the sphere as it discharges. By using the Lorenz gauge condition: $$\nabla \cdot \mathbf{A} + \frac{1}{c^2}\frac{\partial \phi}{\partial t}=0\tag{1}$$ we find the following retarded solutions to the Maxwell equations If we assume that...
Thread 'Griffith, Electrodynamics, 4th Edition, Example 4.8. (First part)'
I am reading the Griffith, Electrodynamics book, 4th edition, Example 4.8 and stuck at some statements. It's little bit confused. > Example 4.8. Suppose the entire region below the plane ##z=0## in Fig. 4.28 is filled with uniform linear dielectric material of susceptibility ##\chi_e##. Calculate the force on a point charge ##q## situated a distance ##d## above the origin. Solution : The surface bound charge on the ##xy## plane is of opposite sign to ##q##, so the force will be...
Dear all, in an encounter of an infamous claim by Gerlich and Tscheuschner that the Greenhouse effect is inconsistent with the 2nd law of thermodynamics I came to a simple thought experiment which I wanted to share with you to check my understanding and brush up my knowledge. The thought experiment I tried to calculate through is as follows. I have a sphere (1) with radius ##r##, acting like a black body at a temperature of exactly ##T_1 = 500 K##. With Stefan-Boltzmann you can calculate...

Similar threads

Replies
53
Views
6K
Replies
3
Views
3K
Replies
207
Views
12K
Replies
4
Views
3K
Replies
5
Views
2K
Replies
9
Views
3K
Back
Top