How Effective Is a Fresnel Lens in Transporting Light Through Fiber Optics?

AI Thread Summary
A 12x12" Fresnel lens can effectively focus light onto a 14mm diameter fiber optic cable, but the efficiency depends on the fiber's acceptance angle and material properties. The fiber optic in question is a solid, end-glow cable made of PMMA plastic with a PVC jacket. Heat loss may occur, but specific calculations would require more details about the lens and fiber interaction. The percentage of light exiting the fiber will also depend on the lens's alignment and the fiber's characteristics. Overall, while the setup is feasible, precise outcomes hinge on additional specifications.
Fritzo130
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Hello,

I have a 12x12" fresnel lens and I want to place a 14mm diameter fiber optics cable at the focal point to transport the light ~2.5 ft.

Would there be any heat loss? And what percentage of the light would exit the fiber optics?

Thanks,

Fritz Laun
 
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This problem is incompletely specified: what is the acceptance angle of the fiber? What is it made of?

14mm is a (ahem) large diameter for a fiber- is it a fiber bundle? or a light pipe? Perhaps a liquid light guide?
 
The fresnel lens would have its focal point hitting normal to the end of the fiber optic cable.

All I know about the material of the fiber optic cable is that is a "poly-rubber plastic".

It is a single, solid, 14mm fiber optic end glow cable that is PVC jacketed.
 
It is PMMA plastic.
 
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