Looking For A Solid Material Light Diffuser - Terminology?

[golmschenk]

I'm looking for a solid material that will diffuse light throughout it. In particular I would need a thin bar with a light source at one end that will diffuse light to all sides of the bar, however, I don't specifically need a bar as long as the material can be machined. I'm trying to search for some type of material like this, but I guess I really don't know what kind of terminology to be using and I keep ending up finding only cinematography light filter films. If anyone has any idea of the material I'm looking for or just the proper terminology of what I should be searching for let me know. Thanks for your time!

 

[Andy Resnick]

Do you mean translucent plastics? Polypropylene or polyurethane may work ok:

http://www.professionalplastics.com/

If you need quantitative control of the exitance, that's significantly more complex. Another good trick is to simply roughen the faces of a clear plastic like acrylic (with sandpaper or something).

 

[golmschenk]

Thanks, the translucent plastic *might* work. A more quantitative control would definitely be a plus. Even if that means it will be more complex/expensive. What would I want to look for if I were searching for this more complex method?

 

[Andy Resnick]

I know a little about non-imaging optics (of which illumination control is a topic), but all I know is that it's more an art than science.

It would be more helpful (here) if you gave some information about your application.

 

[sardar]

There are a few different materials that could potentially work as a light diffuser for your application. Some options to consider include frosted acrylic, polycarbonate, or glass, as well as diffusing films or sheets made from materials like PET or PVC. In terms of terminology, you may want to search for "light diffusing materials" or "light diffusers" to find more specific results. Additionally, considering the specific properties you need, such as machinability and the ability to diffuse light in all directions, may help narrow down your search. It may also be helpful to consult with a materials expert or reach out to manufacturers for recommendations and further guidance.