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[quote]QUOTE: Originally posted by der5997 Wouldn't your friendly neighbourhood telephone man use glass fibre? If so, be careful handling the stuff in case it decides to take up residence in your skin [;)] Also, with the glass fibre, does it melt easily to form a lens? I've not tried it, and am currious. [/quote] It takes a very high temperature to melt glass, a gas burner or electric arc. Also the light carrying core of glass fiber is very small, 10 micron diameter in telephone singlemode fiber; 62.5 micron in LAN multimode fiber, which to your eyes would look like a pinpoint. The entire fiber diameter if you did form a lens is 125 micron, thin as a hair. The fiber is too small to efficiently couple light into it. Large core plastic fiber is better for model RR use. You are right about getting it into your skin. Ouch!
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