Waveguides for guiding light waves, namely, transparent waveguides, transparent holographic waveguides, and transparent holographic waveguides made of glass, a glass-polymer sandwich or a polymer-polymer sandwich, said waveguides comprising at least one holographic optical element; waveguide assemblies comprising a transparent waveguide for guiding light waves and a light-sensitive sensor, light emitting diodes (LEDs) as a light source and/or a non-medical imaging device for the recording, tr...

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