What fundamental aspect differentiates the early fiber-optic integration from some earlier attempts at soft interior lighting?

Answer

A lack of distinct "hotspots" where the light source sits

A key differentiator was the lack of distinct hotspots, a hallmark of good fiber optic integration, which differed from early attempts using single LEDs behind diffusers that often betrayed the light source's location.

What fundamental aspect differentiates the early fiber-optic integration from some earlier attempts at soft interior lighting?

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