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docscience
docscience
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The translucent sheets and optical fibers are being lit from below. Light enters one end with a relative small angle incidence. Once inside the sheet/fiber the light experiences total internal reflectionstotal internal reflections multiple times because it hits the sides of the sheet/fiber with a large angle incidence. It's not until the light gets to the far end of the sheet/fiber that it hits an internal surface at a small enough angle of incidence that it is not totally reflected internally and manages to emerge.

The translucent sheets and optical fibers are being lit from below. Light enters one end with a relative small angle incidence. Once inside the sheet/fiber the light experiences total internal reflections multiple times because it hits the sides of the sheet/fiber with a large angle incidence. It's not until the light gets to the far end of the sheet/fiber that it hits an internal surface at a small enough angle of incidence that it is not totally reflected internally and manages to emerge.

The translucent sheets and optical fibers are being lit from below. Light enters one end with a relative small angle incidence. Once inside the sheet/fiber the light experiences total internal reflections multiple times because it hits the sides of the sheet/fiber with a large angle incidence. It's not until the light gets to the far end of the sheet/fiber that it hits an internal surface at a small enough angle of incidence that it is not totally reflected internally and manages to emerge.

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M. Enns
M. Enns
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The translucent sheets and optical fibers are being lit from below. Light enters one end with a relative small angle incidence. Once inside the sheet/fiber the light experiences total internal reflections multiple times because it hits the sides of the sheet/fiber with a large angle incidence. It's not until the light gets to the far end of the sheet/fiber that it hits an internal surface at a small enough angle of incidence that it is not totally reflected internally and manages to emerge.