What is the difference between the phenomenon of light reflection from the phenomenon of total internal reflection?

Reflection of light is the appearance of secondary light waves propagating from the interface between two media, back to the first medium from which the light originally fell.

Total internal reflection – internal reflection, provided that the angle of incidence exceeds the critical angle. In this case, the incident wave is completely reflected.

Internal reflection is the reflection of electromagnetic and sound waves from the interface between two media, provided that the wave falls from a medium where its propagation speed is slower.

Total reflection is the phenomenon of reflection of electromagnetic or sound waves from the interface between two media, provided that the wave falls from a medium where its speed of propagation is slower. provided that the angle of incidence exceeds a certain critical angle. In this case, the incident wave is completely reflected, provided that the angle of incidence exceeds a certain critical angle.

For example:

1) Optical fiber transmission of light image

2) Prismatic binoculars, periscopes, SLR cameras.