BRAINCAKEMedical Endoscope
Medical endoscopes make use of total internal reflection.
They consist of two bundles of optical fibres: one for illumination and one to form an image from light passing through a lens covering the other fibre bundle through which the image can be observed.
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Key terms in this lesson
- Coherent
- Waves are coherent if they have the same frequency and a constant phase difference.
- Total internal reflection
- The complete reflection of a light ray at a boundary, occurring when the ray travels in the denser medium and the angle of incidence exceeds the critical angle.