The adjective “opto-digital” indicates that something concerns both visible light as a phenomenon of the entisphere and the digital infosphere.

This definition of the adjective “opto-digital” was proposed as part of the terminology of the “Digital Era Framework”. In this frame of reference, four spheres are distinguished on the basis of the type of information manifestation, which allow a classification of processes, phenomena and objects: The infosphere, which consists of the analog infosphere and the digital infosphere, the cognisphere and the entisphere.

Thus, something that is “opto-digital” is something that is “enti-digital”.